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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 1130. Отображено 100.
11-04-2013 дата публикации

DELIVERY UNIT

Номер: US20130089455A1
Автор: Amesoeder Dieter, Kacmar Marian, Laforsch Oliver
Принадлежит: ROBERT BOSCH GMBH

Delivery units are already known, having a drive rotor and an output rotor driven by the drive rotor, which are rotatably mounted in a rotor housing and interact in a meshing manner via spur toothing in each case, at least one of the two rotors being axially adjustable and, on the rear side thereof, facing away from the other rotor, having a compensating pressure applied via a compensation channel. The compensating pressure acts firstly counter to the axial compressive forces which arise in the working chambers formed between the rotors, and secondly compensates for the forces which would force the two rotors apart. This ensures that the distance between the rotors does not change. The compensating pressure frequently corresponds to the pressure on the pressure side of the delivery unit, which means that the forces on the rotors are considerably higher than necessary. This leads to increased friction in the bearings and between the rotors. The rear side of the rotors can also be supplied via slot flows. This has the disadvantage that an undefined compensating pressure is established, which depends on the leakage flows which flow into the space or out of the space behind the rotor. In addition, in this embodiment the compensating pressure does not have the ideal value for low-friction operation. In the delivery unit according to the invention, a defined compensating pressure is established on the rear side of the axially adjustable rotors. The invention provides for a control valve () to be provided, which sets the compensating pressure to a predetermined value between a pressure on the pressure side and a pressure on the suction side. 1332452321312314. A conveying assembly with a driving rotor () and with a driven rotor () driven by the driving rotor () , said rotors being mounted rotatably in a rotor housing () and cooperating in a meshing manner in each case via a spur toothing () , at least one of the two rotors ( , ) being axially adjustable and being acted upon ...

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Номер записи: 1
25-07-2013 дата публикации

Delivery unit

Номер: US20130189142A1
Автор: Evgenij Skrynski
Принадлежит: ROBERT BOSCH GMBH

A delivery unit is already known, which comprises a drive shaft and a rotor driven by the drive shaft. The rotor is rotatably arranged in a stator housing, wherein the rotor has a toothing on the end face of said rotor that is remote from the drive shaft, wherein said toothing meshes with a toothing constructed on the stator housing. The drive shaft comprises an oblique sliding plane interacting with the rotor and which is constructed on a shoulder of the drive shaft and allows the rotor to gyrate with the rotor axis thereof about the drive axis of the drive shaft. Work spaces are formed between the toothing of the rotor and the toothing of the stator housing, wherein said work spaces can be filled via an inlet and emptied via an outlet. In one embodiment the fluid is admitted axially and discharged radially, and in the other embodiment the fluid is admitted and discharged axially. For that purpose, control valves in the form of non-return valves are required. The non-return valves cause additional internal leakages, resulting in a reduction in the volumetric efficiency of the pump. The valves are additional parts, which are associated with additional costs and an increased risk of failure. In the delivery unit according to the invention the control valves can be dispensed with. According to the invention the inlet ( 15 ) is provided in a channel ( 20 ) of the drive shaft ( 2 ) and the outlet ( 16 ) is provided at the shoulder ( 6 ) of the drive shaft ( 2 ).

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Номер записи: 2
13-02-2014 дата публикации

Rotary volumetric machine

Номер: US20140044580A1
Автор: Aimone Balbo Di Vinadio, Edoardo Pancaldi
Принадлежит: CAPTECH Srl

A rotary volumetric machine having a stationary structure; a rotor, which can turn with respect to the stationary structure about a principal axis of rotation; a work chamber formed within said rotor; a disk, which is housed in said work chamber and can turn with respect to the stationary structure about a secondary axis of rotation fixed with respect to said stationary structure, the secondary axis of rotation being inclined with respect to said principal axis of rotation, said disk having a radial through groove; a diaphragm, which is fixed with respect to said rotor, extends in said work chamber, and engages said radial groove of said disk; and an inlet opening and an outlet opening for a working fluid, which are formed in said rotor, communicate with said work chamber, and are located on opposite sides of said diaphragm.

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Номер записи: 3
12-01-2017 дата публикации

Hydraulic Pump

Номер: US20170009769A1
Автор: Pawlik Robert A.
Принадлежит:

A hydraulic pump is described comprising a rotor provided for rotation about a longitudinal axis (X-X) within a housing. The pump comprises a plurality of chambers for pumping a fluid that are provided by longitudinally extending recesses in a circumferential outer surface of the rotor. During use the recesses are moved across a circumferential inner surface of the housing, and in so doing, are moved over an inlet port in the housing to draw fluid into the chamber and then over an outlet port in the housing to discharge the fluid. The hydraulic pump further comprises a roller that is mounted in a longitudinally extending pocket of the housing. The roller is positioned after the outlet port in a direction of the rotor's rotation and is arranged to follow the outer surface of the rotor and seal against each recess as it is drawn past the roller, thereby directing fluid from the chamber into the outlet port. 1. A hydraulic pump comprising a rotor provided for rotation about a longitudinal axis within a housing , the pump comprising:a plurality of chambers for pumping a fluid, the chambers being provided by longitudinally extending recesses in a circumferential outer surface of the rotor, the recesses being moved across a circumferential inner surface of the housing during rotation of the rotor, and in so doing, being moved over an inlet port in the housing to draw fluid into the chamber and then over an outlet port in the housing to discharge the fluid, whereinthe hydraulic pump further comprises a roller that is mounted in a longitudinally extending pocket of the housing, the roller being positioned after the outlet port in a direction of the rotor's rotation, the roller further being arranged to follow the outer surface of the rotor and seal against each recess as it is drawn past the roller, thereby directing fluid from the chamber into the outlet port.2. The hydraulic pump according to wherein the rotor comprises:a plurality of magnets which are able to generate a ...

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Номер записи: 4
27-01-2022 дата публикации

ROTARY LOBE PUMP WITH INTERNAL BEARING

Номер: US20220025883A1
Автор: Ahrens Henrik, Krampe Paul
Принадлежит: VOGELSANG GMBH & CO. KG

A rotary lobe pump having a pump housing with a pump room, an inlet opening and an outlet opening, a first multi-lobe rotary piston, which is arranged in the pump room and is rotatably mounted about a first axis of rotation, a second multi-lobe rotary piston, which is arranged in the pump room and is rotatably mounted about a second axis of rotation spaced apart from the first axis of rotation and meshingly engages in the first rotary piston, wherein the first and second rotary pistons are drivable in opposite directions and are designed to generate a flow of a conveyed medium from the inlet opening through the pump room to the outlet opening by counter-rotation about the first and second axis of rotation, respectively, and a drive device, which is mechanically coupled to the rotary pistons for driving the rotary pistons. 124-. (canceled)25. A rotary lobe pump for conveying a particle-laden conveyed medium , comprising:a pump housing with a pump room;an inlet opening and an outlet opening;a first, multi-lobe rotary piston, which is arranged in the pump room and is rotatably mounted about a first axis of rotation;a second multi-lobe rotary piston, which is arranged in the pump room, and is rotatably mounted about a second axis of rotation spaced apart from the first axis of rotation and meshingly engages in the first rotary piston;wherein the first and the second rotary pistons are drivable in opposite directions and are designed to generate a flow of the conveyed medium from the inlet opening through the pump room to the outlet opening by counter-rotation about the first and second axis of rotation, respectively;a drive device arranged on one side of the pump housing, which is mechanically coupled to the rotary pistons for driving the rotary pistons;a first fixed axle body, which is arranged inside the first rotary piston and connected to the pump housing on the side of the drive device; andat least one first bearing for rotatably supporting the first rotary piston ...

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Номер записи: 5
11-01-2018 дата публикации

FUEL PUMP

Номер: US20180010606A1
Автор: FURUHASHI Daiji, SAKAI Hiromi
Принадлежит:

An outer gear and an inner gear expand and contract volume of pump chambers formed between both the gears, and rotate to suction fuel into the pump chambers and then discharge fuel from the pump chambers sequentially. The inner gear includes an insertion hole that is depressed along its axial direction. A joint member includes a main body portion that is fitted to a rotary shaft, a foot portion that extends from the main body portion along the axial direction and is inserted in the insertion hole with a clearance therebetween, and a protruding portion that protrudes from the foot portion toward a rotation progress side of the inner gear and has its width in the axial direction further narrowed toward a top portion of the protruding portion. 1. A fuel pump comprising:an outer gear that includes a plurality of internal teeth;an inner gear that includes a plurality of external teeth and is eccentric from the outer gear in an eccentric direction to be engaged with the outer gear;a pump housing that rotatably accommodates the outer gear and the inner gear;an electric motor that includes a rotary shaft which is rotary-driven; anda joint member that connects together the inner gear and the rotary shaft, wherein:the outer gear and the inner gear expand and contract volume of a plurality of pump chambers formed between both the gears, and rotate to suction fuel into the plurality of pump chambers and then discharge fuel from the plurality of pump chambers sequentially;the inner gear includes an insertion hole that is depressed along its axial direction; and a main body portion that is fitted to the rotary shaft;', 'a foot portion that extends from the main body portion along the axial direction and is inserted in the insertion hole with a clearance therebetween; and', 'a protruding portion that protrudes from the foot portion toward a rotation progress side of the inner gear and has its width in the axial direction further narrowed toward a top portion of the protruding ...

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Номер записи: 6
28-01-2016 дата публикации

ELECTRIC PUMP UNIT

Номер: US20160025092A1
Автор: Miyagawa Yasukata, Okamoto Noriyuki
Принадлежит: JTEKT CORPORATION

An electric pump unit is provided that ensures capability for lubricating a plain bearing and in which a lubricating oil passage is formed with a simple structure. This pump unit includes: a pump in which a rotor placed in a pump chamber of a pump housing rotates; and an electric motor having a motor shaft coupled to the rotor. The motor shaft is rotatably supported by a cylindrical plain bearing disposed in the pump housing. An oil seal is provided on the opposite side to the pump chamber with the plain bearing between so as to be located between the pump housing and the motor shaft. Oil supply grooves are formed in an inner peripheral surface of the plain bearing so as to extend through the plain bearing in an axial direction. 1. An electric pump unit , comprising:a pump that sucks and discharges oil as a rotor placed in a pump chamber of a pump housing rotates while in sliding contact with wall surfaces at both axial ends of the pump chamber; andan electric motor that has a motor shaft coupled to the rotor and drives the pump; whereinthe motor shaft is rotatably supported by a cylindrical plain bearing disposed in the pump housing,a seal member is provided at a position on an opposite side to the pump chamber with the plain bearing between so as to be located between the pump housing and the motor shaft, andan oil supply groove is formed in an inner peripheral surface of the plain bearing so as to extend through the plain bearing in an axial direction.2. The electric pump unit according to claim 1 , whereina suction port through which the oil is sucked and a discharge port through which the oil is discharged are formed in the wall surfaces at the both axial ends of the pump chamber so as to be in a shape of an elongated hole that is longer in a circumferential direction, anda pair of the oil supply grooves are provided so as to be located on a straight line extending in a radial direction and being perpendicular to a straight line which connects a middle position ...

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Номер записи: 7
30-01-2020 дата публикации

Rotational Displacement Apparatus

Номер: US20200032652A1
Автор: Fenton Jonathan Paul
Принадлежит:

An apparatus including a first piston member rotatable about a first rotational axis and a rotor with a first chamber and pivotable about a second rotational axis. The first piston member extends across the first chamber. The rotor and first piston member are rotatable around the first rotational axis, and the rotor is pivotable about the second rotational axis to permit a relative pivoting motion between the rotor and the first piston member linked to the rotor rotating about the first rotational axis. 1 the method comprising:', 'rotating the rotor and first piston member around the first rotational axis; and', 'pivoting the rotor about the second rotational axis', 'such that there is a relative pivoting motion between the rotor and the first piston member', 'which varies the volume of each of the sub-chambers,', 'with the change in the sub-chambers volume being linked to rotation of the rotor about the first rotational axis., 'a first piston member being rotatable about a first rotational axis; a rotor comprising a first chamber and pivotable about a second rotational axis, the first piston member extending across the first chamber to form sub-chambers within the first chamber;'}. A method of operation of a rotary fluid apparatus that comprises This application is a continuation of pending U.S. application Ser. No. 15/552,451, filed Aug. 21, 2017, which was the National Stage of International Application No. PCT/GB2016/052429, filed Aug. 5, 2016, which claims priority of GB Application No. 1520830.9, filed Nov. 25, 2015 and GB Application No. 1521207.9, filed Dec. 1, 2015, the entire disclosure of each being hereby incorporated by reference herein.Conventional fluid pumps and internal combustion engines that comprise a ‘cranked’ reciprocating arrangement to drive a piston are of course well known and understood in the art. The demerit of these arrangements is the need, and losses arising from, the translation of linear motion of a piston into a rotational motion ...

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Номер записи: 8
09-02-2017 дата публикации

PRESSURE CONTROL BY PHASE CURRENT AND INITIAL ADJUSTMENT AT CAR LINE

Номер: US20170037808A1
Автор: Sausner Andreas, Völker Marc
Принадлежит: CONTINENTAL AUTOMOTIVE SYSTEMS, INC.

A closed loop control system for a fuel pump based on characteristics of speed, pressure, and current. The pressure generated by the pump system is increased at the point in time when the pump system is working against a dead head system (i.e., coasting) to a level that a calibration valve is opened to a determined working point. By measuring the characteristic phase current as a function of the speed, the characteristic is able to be compared, with the pre-calibrated value of the hardware to perform an error compensation algorithm. The error compensation is overlaid with the standard pressure characteristic as a function of speed and phase current, and uses the pre-calibrated opening pressure value (i.e., the inflection point) of the calibration valve and/or in addition the change of the speed to the initial (first calibration), or to a sliding average therefrom. 1. An apparatus , comprising: a motor;', 'a device for generating a pumping action to transfer fluid, the device connected to and powered by the motor; and', 'a valve in fluid communication with the device;', 'wherein the device transfers the fluid at a selected pressure, and the selected pressure is based on the measured current applied to the motor, and the valve opens when the device pumps the fluid at a predetermined pressure, providing a calibration function., 'a pump system having a closed loop function, including2. The apparatus of claim 1 , further comprising:an inlet conduit in fluid communication with the motor, such that the fluid is transferred from the inlet conduit to the device as the motor powers the device;an outlet conduit in fluid communication with the device, such that the fluid flowing into the outlet conduit is pressurized by the device, and the pressure of the fluid in the outlet conduit is controlled by the device; anda secondary conduit in fluid communication with the outlet conduit;wherein the portion of the fluid in the secondary conduit is at substantially the same pressure as ...

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Номер записи: 9
24-02-2022 дата публикации

PUMP WITH HIGH TORQUE DRIVE

Номер: US20220056909A1
Автор: Becker Steven D., Daeger Alexander J., Drexler Jarrod C., Janecek Thomas F., Kopel Andrew J., Reynolds Jeremy Scott, Ryder Douglas S., Williams Tyler K.
Принадлежит:

A fluid moving apparatus includes an electric motor having a rotor and a stator and a fluid displacement member. The rotor rotates relative to the stator on a common axis to generate a rotational output. The rotational output is provided to the fluid displacement member to power the fluid displacement member to one of move linearly along and rotate about the common axis. The stator includes one or more coils configured to power rotation of the rotor. The one or more coils extend circumferentially around and can be coaxial on the common axis. 1. A pump apparatus for pumping fluid , the apparatus comprising:{'claim-text': ['a motor rotor configured to rotate about a common axis, the motor rotor comprising a permanent magnet array, the permanent magnet array disposed annularly around the common axis; and', {'claim-text': ['a plurality of coils, the plurality of coils arrayed along the common axis, each coil of the plurality of coils coaxial with the common axis; and', 'a plurality of circular spur arrays arranged in sets of paired circular spur arrays that are arrayed along the common axis;', 'wherein each respective circular spur array of the plurality of circular spur arrays includes a plurality of spurs that are arrayed in a circle coaxial with the common axis, all spurs of the plurality of spurs of the respective circular spur array configured to be polarized simultaneously by a respective coil of the plurality of coils to generate flux to rotate the motor rotor relative to the motor stator;', 'wherein each set of paired circular spur arrays has a first circular spur array and a second circular spur array, and each respective coil of the plurality of coils is located between a respective set of paired circular spur arrays; and', 'wherein each set of paired circular spur arrays includes a plurality of axial returns extending so that each axial return of the plurality of axial returns radially overlaps the first circular spur array of the set of paired circular spur ...

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Номер записи: 10
18-02-2016 дата публикации

LUBRICANT VANE PUMP

Номер: US20160047280A1
Автор: ARMENIO GIACOMO, LAZZERINI MASSIMILIANO, Novi Nicola
Принадлежит:

A lubricant vane pump for providing a pressurized lubricant for an internal combustion engine includes a pump housing, a pump chamber, a shiftable control ring comprising a pressure-relief-valve, a pump rotor, a pretensioning element which pushes the control ring into a high pumping volume position, a control chamber, and a pump outlet cavity fluidically connected to the control chamber. The pump chamber comprises pump compartments which rotate from a charge to discharge zone. The control ring envelops the pump chamber. The pump rotor comprises radially slidable vanes which rotate in the control ring to provide the pump chamber with the pump compartments. A high lubricant pressure in the control chamber moves the control ring into a low pumping volume direction against the pretensioning element. The pressure-relief-valve of the control ring connects or disconnects the control chamber with one of the pump compartments between the charge zone and the discharge zone. 19-. (canceled)10. A lubricant vane pump for providing a pressurized lubricant for an internal combustion engine , the lubricant vane pump comprising:a pump housing;a pump chamber arranged in the pump housing, the pump chamber comprising a plurality of pump compartments configured to rotate from a charge zone to a discharge zone;a shiftable control ring comprising a pressure-relief-valve arranged in the pump housing, the shiftable control ring being configured to envelop the pump chamber;a pump rotor arranged in the pump housing, the pump rotor comprising radially slidable vanes which are configured to rotate in the shiftable control ring so as to provide the pump chamber with the plurality of rotating pump compartments;a pretensioning element configured to push the shiftable control ring into a high pumping volume position;a control chamber, wherein a high lubricant pressure in the control chamber moves the shiftable control ring into a low pumping volume direction against the pretensioning element; anda ...

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Номер записи: 11
16-02-2017 дата публикации

Fluid Delivery System With A Shaft Having A Through-Passage

Номер: US20170045046A1
Автор: Afshari Thomas
Принадлежит:

A fluid delivery system having at least one fluid storage device and a pump with at least one fluid driver with a flow-through shaft that has a through-passage. The pump includes a casing, and at least one fluid driver having a prime mover and at least one fluid displacement member. A shaft of the prime mover and/or a shaft of the fluid displacement member and/or a common shaft of the prime mover/fluid displacement member (depending on the configuration of the pump) is a flow-through shaft with a through-passage configuration that allows fluid communication between at least one port of the pump and the at least one fluid storage device. 1. A pump comprising:a casing defining an interior volume, the casing including a first port in fluid communication with the interior volume, and a second port in fluid communication with the interior volume;a first gear disposed within the interior volume, the first gear having a first gear body and a plurality of first gear teeth;a second gear disposed within the interior volume, the second gear having a second gear body and a plurality of second gear teeth projecting radially outwardly from the second gear body, the second gear is disposed such that a second face of at least one tooth of the plurality of second gear teeth aligns with a first face of at least one tooth of the plurality of first gear teeth;a first motor that rotates the first gear about a first axial centerline of the first gear in a first direction to transfer a fluid from the first port to the second port along a first flow path;a second motor that rotates the second gear, independently of the first motor, about a second axial centerline of the second gear in a second direction to contact the second face with the first face and to transfer the fluid from the first port to the second port along a second flow path; andat least one flow-through shaft disposed in at least one of the first motor, the second motor, the first gear and the second gear, each of the at ...

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Номер записи: 12
09-03-2017 дата публикации

PUMP COVER

Номер: US20170067461A1
Автор: Grosskopf Andrew P., Wojcik Craig J.
Принадлежит:

A cover with a center axis for a pump assembly includes a plate. A center hole is formed in the plate and positioned on the center axis of the cover. A first edge of the plate extends between a first lobe and a second lobe, a second edge of the plate extends between the first lobe and a third lobe, and a third edge of the plate extends between the second lobe and the third lobe. The first, second, and third lobes each comprise a mounting boss with a thru-hole. 1. A cover with a center axis for a pump assembly comprising:a plate;a center hole formed in the plate and positioned on the center axis of the cover;a first edge of the plate extending between a first lobe and a second lobe;a second edge of the plate extending between the first lobe and a third lobe; anda third edge of the plate extending between the second lobe and the third lobe,wherein the first, second, and third lobes each comprise a mounting boss with a thru-hole.2. The cover of claim 1 , wherein the first edge and the second edge are straight.3. The cover of claim 2 , wherein the third edge is bent away from the center hole on a plane of the plate.4. The cover of claim 3 , wherein the third edge is longer in length than the first edge.5. The cover of claim 4 , wherein the second edge is longer in length than the first edge.6. The pump assembly of claim 5 , wherein the first edge and the second edge of the plate are positioned equidistant from the center axis.7. The cover of claim 1 , wherein the plate of the cover is generally triangular in shape.8. A pump assembly comprising:a tubular body extending from a first end to a second end along a center axis, wherein the first end is open;a plurality of pumps disposed within the tubular body; and a plate;', 'a center hole formed in the plate and positioned on the center axis of the tubular body;', 'a first edge of the plate extending between a first lobe and a second lobe;', 'a second edge of the plate extending between the first lobe and a third lobe; and', ...

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Номер записи: 13
11-03-2021 дата публикации

LIQUID PUMPING DEVICE

Номер: US20210071661A1
Автор: SHI Yuyang
Принадлежит:

Disclosed is a liquid pumping device, including a first component, a second component and a third component, wherein the second component moves relative to the first component in a fixed manner; a medium inlet and a medium outlet not in communication with each other are provided in a contact surface of the first component in liquid tightness sliding fit with the second component; a groove is provided in a contact surface of the second component in liquid tightness sliding fit, and the groove moves along a fixed path in the range of the contact surface in liquid tightness sliding fit; and the movement path of the groove respectively passes the medium inlet, the medium outlet and the third component, the third component is arranged on the side of the medium outlet in the forward movement direction of the groove, and when the groove moves forward through the third component, the part of the third component entering the groove extrudes the medium in the groove to the medium outlet. The quantification of liquid by the device of the present invention is determined by the groove, and the principle facilitates the control of the output precision of the pump. 1. A liquid pumping device , comprising a first component , a second component , and a third component , wherein the second component moves relative to the first component in a fixed manner , and at least a part of a contact surface of the first component and the second component is in liquid tightness sliding fit;a medium inlet and a medium outlet, not in communication with each other, are provided in the contact surface of the first component in liquid tightness sliding fit with the second component; at least one cave is provided in the contact surface of the second component in liquid tightness sliding fit with the first component; the cave moves in a fixed path in a range of the contact surface in liquid tightness sliding fit, along with a movement of the second component; a movement path of the cave passes ...

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Номер записи: 14
17-03-2016 дата публикации

Electric Oil Pump

Номер: US20160076539A1
Автор: CHIKAOKA Takayuki
Принадлежит:

A drive rotation shaft is rotatably supported by a first slide bearing between a rotor part and a pump rotor, and is rotatably supported by a second slide bearing on its distal end side of a pump rotor fixing part of the drive rotation shaft. Working oil is supplied to the first slide bearing and the second slide bearing. According to this configuration, since the distal end side of the drive rotation part is rotatably supported by the second slide bearing, inclination of the drive rotation shaft is restricted by an inner peripheral surface of the second slide bearing, thereby suppressing occurrence of noise. 1. An electric oil pump comprising:a pump section including a pump rotor and an outer rotor, wherein the pump rotor and the outer rotor are housed in a pump housing part formed in a housing;an electric motor section including a rotor part and a stator part, wherein the rotor part includes a permanent magnet, and wherein the stator part includes an iron core and a winding;a drive rotation shaft coupling the pump rotor and the rotor part to each other;a first bearing part including a slide bearing supporting rotatably the drive rotation shaft between the pump rotor and the rotor part;a first working oil introduction passage configured to supply working oil to the first bearing part; anda pump cover fixed to the housing so as to cover the pump section, and including a discharge port and a suction port in communication with the pump section; whereinthe pump cover is formed with a second bearing part including a slide bearing supporting rotatably a distal end portion of the drive rotation shaft;the distal end portion is on a distal side of a portion of the drive rotation shaft to which the pump rotor is fixed; anda second working oil introduction passage is formed to supply working oil to the second bearing part.2. The electric oil pump as claimed in claim 1 , wherein:the first bearing part includes an inner peripheral surface formed with an oil groove connected to ...

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Номер записи: 15
07-03-2019 дата публикации

ELECTRIC MOTOR AND ROD-DRIVEN ROTARY GEAR PUMPS

Номер: US20190072090A1
Автор: POLLARD Kim, Straub Peter
Принадлежит: Advancing Pump Technology Crop.

A downhole pumping apparatus comprising a positive displacement rotary gear pump (RGP), driven by a rotating rod string or a submersible electric motor. 1. A pumping apparatus comprising a positive displacement rotary gear pump (RGP) , driven by a rotating rod string or a submersible electric motor.2. The apparatus of wherein the RGP is driven by a rotating rod string claim 1 , and further comprising a flex coupling.3. The apparatus of wherein the RGP is driven by an electric motor which is an AC induction motor or a permanent magnet motor and further comprising a flex coupling.4. The apparatus of further comprising a speed reducing or speed increasing gearbox disposed between the RGP and the motor.5. The apparatus of wherein the motor is mounted below the RGP.6. The apparatus of wherein the motor is mounted above the RGP.7. The apparatus of wherein the pumping apparatus is conveyed on coiled tubing.8. The apparatus of wherein the pumping apparatus is conveyed on a cable.9. The apparatus of wherein the RGP is conveyed on production tubing and further comprises a sensor operatively connected to the motor to vary motor operation.10. The apparatus of or further comprising a speed increasing or decreasing gearbox disposed between the motor and the RBP.11. The apparatus of or further comprising an oil/gas separator associated with a RGP intake.12. The apparatus of further comprising a drive extension having a splined male end which mates with a splined engagement coupling claim 2 , wherein the flex coupling is disposed between the engagement coupling and a RGP drive shaft.13. The apparatus of comprising a packer disposed on the pump between an intake and a pump discharge head claim 7 , the packer configured to mate with a pump seating nipple installed in a casing or a liner.14. The apparatus of comprising a packer disposed on the pump between an intake and a pump discharge head claim 8 , the packer configured with a surface control line to expand from a running shape to ...

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Номер записи: 16
16-03-2017 дата публикации

VEHICLE HYDRAULIC DEVICE

Номер: US20170074263A1
Автор: Inagaki Takafumi, Mizuno Yoshihiro, Moriyama Shuji, Nitani Hiromitsu, SOGA Yoshinobu, Takeda Mitsuhiro
Принадлежит:

A check valve provided makes it possible to operate a vane pump smoothly even at the start of the vane pump by maintaining an oil pressure in backpressure oil passages inside the vane pump while the vane pump is stopped. The check valve opens at the point in time when an oil pressure control device, to which a working fluid is supplied from the vane pump, has been filled with the working fluid and the oil pressure in discharge oil passages communicating with the oil pressure control device has risen and exceeded the oil pressure in the backpressure oil passages. Thus, the check valve is prevented from opening and closing repeatedly, so that the durability of the check valve is improved. 1. A vehicle hydraulic device comprising: the pump housing having an inner peripheral cam surface with an elliptical sectional shape,', 'the plurality of vanes being provided inside the pump housing,', 'the rotor providing vane housing grooves that house the plurality of vanes so as to be movable in a radial direction of the rotor; and, 'a vane pump that is driven to rotate by an engine, the vane pump including a pump housing, a plurality of vanes, and a rotor,'} the backpressure oil passages being configured to supply a backpressure to the plurality of vanes inside the vane housing grooves,', 'the discharge oil passages being configured to: (i) introduce a working fluid discharged from the vane pump, and (ii) supply the working fluid to a device other than the vehicle hydraulic device,, 'an oil pressure control circuit including backpressure oil passages and discharge oil passages,'}a check valve provided between the backpressure oil passages and the discharge oil passages, the check valve being configured to: (i) open when an oil pressure of the working fluid in the discharge oil passages discharged from the vane pump is higher than the oil pressure in the backpressure oil passages, and (ii) block a flow of the working fluid when the oil pressure of the working fluid in the ...

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Номер записи: 17
16-03-2017 дата публикации

ELECTRIC PUMP

Номер: US20170074264A1
Автор: HORIMATSU Toshinobu, IWANO Haruo, MASUKURA Satoshi
Принадлежит: MAHLE FILTER SYSTEMS JAPAN CORPORATION

An electric pump includes an outer rotor rotatably disposed radially inward of a stator, the outer rotor including a plurality of permanent magnets in an outer circumferential surface thereof, a plurality of plate holding grooves being formed in an inner circumferential surface of the outer rotor; an inner rotor provided radially inward of the outer rotor, a plurality of slots being radially formed in an outer circumferential surface of the inner rotor; and a plurality of connecting plates each including a head portion and a radially-inner end portion, the head portion being formed in a substantially circular shape in cross section and fitted swingably into the plate holding groove, the radially-inner end portion being slidably fitted into the slot. Each of the plate holding grooves is located within a projection plane of the permanent magnet with respect to a circumferential direction of the outer rotor. 1. An electric pump comprising:a housing formed with a suction port and a discharge port and equipped with an annular stator; wherein the outer rotor includes a plurality of permanent magnets in an outer circumferential surface of the outer rotor such that the outer rotor cooperates with the stator to define a motor section, and', 'a plurality of plate holding grooves formed in an inner circumferential surface of the outer rotor extend in an axial direction of the outer rotor;, 'an outer rotor formed in a cylindrical shape and rotatably disposed radially inward of the stator,'} wherein a plurality of slots are radially formed in an outer circumferential surface of the inner rotor, and', 'a space formed between the inner rotor and the outer rotor communicates with the suction port and the discharge port; and, 'an inner rotor provided radially inward of the outer rotor and at an eccentric location relative to the outer rotor,'}a plurality of connecting plates each including a head portion and a radially-inner end portion, the head portion being formed in a ...

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Номер записи: 18
26-03-2015 дата публикации

ROTARY PISTON ENGINE WHICH ACTS AS A PUMP, CONDENSER OR MOTOR FOR A FLUID

Номер: US20150086407A1
Автор: Amesoeder Dieter
Принадлежит: ROBERT BOSCH GMBH

The invention relates to a rotary piston engine () which operates as a pump, condenser or motor for a liquid or gaseous medium. The rotary piston engine () has a first gear () having a first central axis (I), a second gear () arranged opposite the first gear () and having a second central axis (II), and a drive shaft () having a third central axis (III) and a sliding plane () fixedly connected to the drive shaft (). The first central axis (I) and the second central axis (II) enclose an angle (α) which is not equal to 180°. The third central axis (III) and at least one central axis (I, II) from the group comprising the first central axis (I) and second central axis (II) enclose an angle (α α) which is not equal to 0° or 90°. The sliding plane () and the central axis (I, II) are perpendicular to each other. The first gear () has a first end face () having a first has toothing () that h at least one first tooth (), and the second gear () has a second end face () having a second toothing () that has at least one second tooth (), wherein a first number of first teeth and a second number of second teeth differ from each other. The first tooth () and the second tooth () engage with each other in such a way that a working chamber () is formed by means of a meshing of the teeth (). A volume formed by means of the at least one working chamber () is changed by the meshing of the teeth (). The at least one working chamber () is delimited by a conically shaped inner wall () of a housing (). The at least one working chamber () can be connected to a supply flow () and an outlet flow () for the medium. According to the invention, a component () from the group comprising the first gear () and second gear () is coupled to the housing () such that a rotation of the drive shaft () causes only the components () to tumble. The respective other components () from the group comprising the first gear () and second gear () is coupled to the sliding plane () such that the respective other ...

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Номер записи: 19
23-03-2017 дата публикации

ELECTRIC PUMP

Номер: US20170082104A1
Автор: MATSUMOTO Takashi, USHITA Yoshiaki, YAMAMOTO Takeru
Принадлежит: AISIN SEIKI KABUSHIKI KAISHA

An electric pump includes a motor portion having a rotary drive force by a power supply, a pump portion being operated by the motor portion, and a control portion controlling an electric power being supplied to the motor portion. The motor portion, the pump portion, and the control portion are integrally formed. The control portion includes a control circuit board controlling the electric power supplied to the motor portion, the control portion including a case containing the control circuit board, the control portion including a temperature sensor being provided at a board surface of the control circuit board, the board surface being disposed at a position facing an inner surface of an area of the case, the area being exposed to external air. 1. An electric pump , comprising:a motor portion having a rotary drive force by a power supply;a pump portion being operated by the motor portion; anda control portion controlling an electric power being supplied to the motor portion; whereinthe motor portion, the pump portion, and the control portion are integrally formed; andthe control portion includes a control circuit board controlling the electric power supplied to the motor portion, the control portion including a case containing the control circuit board, the control portion including a temperature sensor being provided at a board surface of the control circuit board, the board surface being disposed at a position facing an inner surface of an area of the case, the area being exposed to external air.2. The electric pump according to claim 1 , whereinthe control portion is disposed at a position being adjacent to the motor portion; andthe control circuit board is provided with an electric power control element, the electric power control element controlling the electric power supplied to the motor portion, the control circuit board including a heat conduction resistance portion being disposed between the temperature sensor and the electric power control element.3. The ...

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Номер записи: 20
02-04-2015 дата публикации

ROTARY COMPRESSORS WITH VARIABLE SPEED AND VOLUME CONTROL

Номер: US20150093273A1
Автор: Crum Daniel R., Johnson Jay H., Powell Gordon, Sauls John R.
Принадлежит:

Systems and methods are used to control operation of a rotary compressor of a refrigeration system to improve efficiency by varying the volume ratio and the speed of the compressor in response to current operating and load conditions. The volume of the axial and/or radial discharge ports of the compressor can be varied to provide a volume ratio corresponding to operating conditions. In addition, permanent magnet motors and/or control of rotor tip speed can be employed for further efficiency gains. 1. A refrigeration system , comprising:a compressor comprising a compressor housing defining a suction port, a working chamber, and a discharge port, the compressor further comprising at least two rotors in the working chamber cooperatively arranged relative to one another to compress a fluid as the at least two rotors rotate relative to one another, the fluid being received into the working chamber through the suction port and being discharged from discharge ends of the rotors through the discharge port;a motor assembly including a motor operable to drive at least one of the at least two rotors at a rotational speed;a controller configured to receive operational parameters of the refrigeration system; anda volume control assembly at the discharge port of the compressor that is configured to receive a command signal from the controller and displace at least one volume control member relative to the discharge ends of the at least two rotors to vary a volume ratio of the compressor from a first condition to a second condition in response to operational parameters of the refrigeration system.2. The system of claim 1 , wherein the rotational speed operates the at least one rotor at an optimum peripheral velocity that is independent of a peripheral velocity of the at least one rotor at a synchronous motor rotational speed for a rated capacity of the compressor.3. The system of claim 1 , wherein the fluid is a refrigerant.4. The system of claim 1 , wherein the motor comprises a ...

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Номер записи: 21
21-03-2019 дата публикации

ROTARY PUMP DRIVEN MEDICAMENT DELIVERY DEVICE

Номер: US20190085843A1
Автор: Bechtold Herbert, Gabriel Jochen
Принадлежит:

A rotary pump is presented for use in a medicament delivery device, where the pump has a back plate having an inner surface and a rotor housing is positioned adjacent to the back plate having a peripheral wall. A front plate support is connected to the back plate and a flexible front plate is positioned between the front plate support and the rotor housing. The pump is rotated using a planetary gear transmission, where an eccentric shaft is operatively connected to the planetary gear mechanism. A rotor is rotationally fixed to the eccentric shaft and movably positioned within rotor housing. The rotor has three lobes, where each lobe has two peripheral curved surfaces sharing a common apex, where a first portion of each peripheral surface adjacent to the apex defines a non-smooth curve. 1. A pump comprising:a) a back plate having an inner surface;b) a rotor housing positioned adjacent to the back plate and having a peripheral wall;c) a front plate support connected to the back plate;d) a flexible front plate positioned between the front plate support and the rotor housing;e) a planetary gear transmission;e) an eccentric shaft operatively connected to the planetary gear mechanism; andf) a rotor rotationally fixed to the eccentric shaft and movably positioned within rotor housing, the rotor comprising three lobes, where each lobe has two peripheral curved surfaces sharing a common apex, where a first portion of each peripheral surface adjacent to the apex defines a non-smooth curve.2. The pump of where the peripheral wall defines a pump chamber with a trochoidal wall.3. The pump of where the pump chamber comprises a first and second chamber.4. The pump of where the planetary gear transmission comprises:a stationary timing pinion positioned on the back plate; anda ring gear integral with the rotor, where the ring gear has teeth that mesh with cooperating teeth on the timing pinion such that the ring gear rotates eccentrically around the timing pinion.5. The pump of ...

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Номер записи: 22
05-05-2022 дата публикации

Single screw compressor

Номер: US20220136506A1
Автор: John Michael Roll, Maghmood Van Der Poll, Terence William Thomas Young
Принадлежит: J&E Hall Ltd

A single screw compressor comprises a main rotor and at least one gate rotor, a casing for the main rotor having a discharge port at a discharge end of the casing, and a slide slidable within a bore in the casing adjacent the main rotor. The slide has a cut-out (6) between first (2) and second (4) sealing parts of the slide, the slide is slidable between a high volume ratio position where the cut-out (6) is within the casing and provides a path to the discharge port, and a low volume ratio position where the slide is beyond the discharge end of the casing to provide a fixed discharge path in the bore of the casing.

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Номер записи: 23
07-04-2016 дата публикации

Pump unit

Номер: US20160097388A1
Автор: Dieter Amesoeder, Evgenij Skrynski, Ingo Nowitzky, Marian Kacmar, Oliver Laforsch, Sando Kunath
Принадлежит: ROBERT BOSCH GMBH

Pump units are known that have a drive shaft and a rotor, which is driven by the drive shaft and is arranged rotatably in a housing, the drive shaft having an oblique sliding plane, which interacts with the rotor and allows the rotor to nutate with the rotor axis thereof about a drive axis of the drive shaft, the rotor having a set of teeth on the end face of the rotor facing away from the drive shaft, said teeth meshing with a set of teeth formed on a housing of the pump unit, working spaces being formed between the teeth of the rotor and the teeth of the housing, which working spaces can be filled via an inlet and emptied via an outlet. It is disadvantageous that the pump unit has a comparatively large axial installation length, because the drive of the pump unit is arranged on an end of the drive shaft facing away from the rotor. In the pump unit according to the invention, the axial installation length is shortened. According to the invention the drive shaft ( 1 ) is surrounded by a stator ( 15 ) and magnets ( 16 ) are provided on the drive shaft ( 1 ), which magnets interact magnetically with the stator ( 15 ).

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Номер записи: 24
06-04-2017 дата публикации

Pump and motor combination

Номер: US20170097001A1
Автор: Alexander Hahn, Tobias Ott
Принадлежит: Ebm Papst St Georgen GmbH and Co KG

A pump-motor combination features a motor ( 30 ) and a pump ( 20 ). The pump has a first rotor ( 21 ) and a first housing 300 ). The motor is an electric motor ( 30 ) having a second rotor ( 31 ), a stator ( 33 ) and a second housing ( 32 ). The first (pump) rotor ( 21 ) is at least partially coupled, and the second (motor) rotor ( 31 ) is completely coupled, to a common rotating shaft ( 40 ), in order to enable transmission of rotation of the second (motor) rotor ( 31 ) to the first (pump) rotor ( 21 ). The structure has significant advantages when installed with the gearbox (G) or transmission of a motor vehicle, to assure supply of lubricant ( 360 ) when a primary lubricant pump ( 350 ) has not been operating, for example, upon start-up. Use of the common shaft ( 40 ) minimizes frictional losses during operation and reduces the cost of manufacture, since fewer bearings are needed, compared to the prior art.

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Номер записи: 25
14-04-2016 дата публикации

UNIAXIAL ECCENTRIC SCREW PUMP

Номер: US20160102664A1
Автор: Suhara Nobuhisa
Принадлежит:

A uniaxial eccentric screw pump for rotating a rotor about its axis and revolving the rotor without involving complicated operations and control is provided. The uniaxial eccentric screw pump includes a rotor drive mechanism capable of revolving a rotor while rotating the rotor about its axis. The rotor drive mechanism includes a rotation power transmission member rotatable about a predetermined center axis, and a revolution track formation member capable of revolving a proximal shaft portion of the rotor while allowing rotation of the proximal shaft portion about its axis. The rotor drive mechanism distributes power output from the same motor in parallel and transmit the power to the rotation power transmission member and the revolution track formation member, enabling the rotation power transmission member and the revolution track formation member to rotate about their axes while being synchronized mechanically, and enabling the rotor to revolve while rotating about its axis. 1. A uniaxial eccentric screw pump configured such that a rotor of an external screw type is inserted into a stator having an insertion hole of an internal screw type , the uniaxial eccentric screw pump comprising a rotor drive mechanism capable of revolving the rotor while rotating the rotor about its axis , the rotor drive mechanism comprising:a rotation power transmission member configured to rotate about a predetermined center axis, to thereby rotate the rotor about its axis; anda revolution track formation member configured to revolve a proximal shaft portion of the rotor along a predetermined revolution track while allowing rotation of the proximal shaft portion about its axis,the rotor drive mechanism being configured to actuate the rotation power transmission member and the revolution track formation member by distributing power output from the same power source in parallel and transmitting the power to the rotation power transmission member and the revolution track formation member ...

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Номер записи: 26
12-04-2018 дата публикации

LIQUID PUMP/ELECTRIC MOTOR COMBINATION

Номер: US20180100503A1
Автор: Peterreins Thomas
Принадлежит: Bühler Motor GmbH

A liquid pump/motor combination powered by an electric motor, preferably, an oil pump or reducing-agent pump with an electric motor, a positive displacement pump and a bearing shield arranged between the electric motor and the positive displacement pump. The liquid pump/motor combination comprises a positive displacement pump; an electric motor; and a bearing shield having a contact face, the bearing shield arranged between the electric motor and the positive displacement pump. A spherical bearing is accommodated in the bearing shield, the spherical bearing, under application of a force, being able to swivel to a limited extent. A connecting shaft is accommodated in the spherical bearing. The connecting shaft is positioned between the electric motor and the pump. An annular bearing gap, filled with liquid, is between the inside diameter of the spherical bearing and the connecting shaft. The arrangement functions as a hydrodynamic sliding bearing. 1. A liquid pump/motor combination comprising:a positive displacement pump;an electric motor;a bearing shield having a contact face, the bearing shield being arranged between the electric motor and the positive displacement pump;a spherical bearing accommodated in the bearing shield, the spherical bearing being configured to be swivelable to a limited extent under application of a force;a connecting shaft accommodated in the spherical bearing, the connecting shaft positioned between the electric motor and the positive displacement pump;an annular bearing gap, filled with liquid, remaining between the inside diameter of the spherical bearing and the connecting shaft, andthe spherical bearing, the connection shaft, and the bearing gap functioning in operation together as a hydrodynamic sliding bearing.2. The liquid pump/motor combination according to claim 1 , further comprising:a receiving feature in the form of a recess in the bearing shield, the recess having a substantially hollow, cylindrical shape;a clamping spring ...

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Номер записи: 27
26-03-2020 дата публикации

WEDGE CLUTCH WITH RESIDUAL MAGNETISM ATTENUATION AND PUMP WITH RESIDUAL MAGNETISM ATTENUATION

Номер: US20200096055A1
Автор: HRUSCH Nicholas, Rauh Kevin
Принадлежит:

A clutch, including: inner and outer races; a wedge plate; an electromagnetic actuator including a coil and an attenuating circuit. The coil is arranged to be energized by a power source to switch the wedge clutch between: a locked mode in which the inner and races are locked in a circumferential direction and a free-wheel mode in which the inner race is rotatable with respect to the outer race in the circumferential direction. The attenuating circuit includes a capacitor parallel with the coil and a switch wired to the capacitor. During the free-wheel mode: the switch is arranged to connect the capacitor to an electrical ground; and the electrical power source is arranged to energize the coil and charge the capacitor with a voltage. Following initiation of the locked mode: the switch isolates the capacitor from the electrical ground; and the capacitor discharges the voltage through the coil. 1. A wedge clutch , comprising:an axis of rotation;an inner race;an outer race located radially outward of the inner race;a wedge plate radially disposed between the inner race and the outer race; [ a first locked mode of the wedge clutch, in which the inner race, the wedge plate, and the outer race are non-rotatably connected for rotation of the inner race in a first circumferential direction; and,', 'a first free-wheel mode of the wedge clutch, in which the inner race is rotatable, with respect to the outer race, in the first circumferential direction; and,, 'a coil arranged to be energized by an electrical power source to displace the wedge plate, with respect to the inner race or the outer race, to switch the wedge clutch between, a capacitor wired in parallel with the coil; and,', 'a first switch wired to the capacitor, wherein:, 'an attenuating circuit including], 'an electromagnetic actuator including the first switch is arranged to connect the capacitor to an electrical ground; and,', energize the coil; and,', 'charge the capacitor with a voltage; and,, 'the electrical ...

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Номер записи: 28
29-04-2021 дата публикации

ELECTRIC OIL PUMP APPARATUS

Номер: US20210123439A1
Автор: IIMURA Daisuke
Принадлежит: JTEKT CORPORATION

An electric oil pump apparatus includes a housing, an electric motor, an oil pump, a shaft, a first bearing, and a second bearing. The electric motor is housed in the housing. The oil pump is provided in the housing and positioned on a first side in an axial direction with respect to the electric motor so as to be adjacent to the electric motor, and includes a pump rotational element rotatable coaxially with a motor rotor. The motor rotor and the pump rotational element are fitted to the shaft to be rotatable together with the shaft. The first bearing is disposed on the first side with respect to the pump rotational element, and supports the shaft while allowing rotation relative to the housing. The second bearing is disposed on a second side with respect to the pump rotational element, and supports the shaft while allowing rotation relative to the housing. 1. An electric oil pump apparatus comprising:a housing;an electric motor housed in the housing and including a motor stator and a motor rotor;an oil pump provided in the housing at a position on a first side in an axial direction with respect to a position of the electric motor so as to be adjacent to the electric motor, the oil pump including a pump rotational element that is rotatable coaxially with the motor rotor;a shaft to which the motor rotor and the pump rotational element are fitted such that the motor rotor and the pump rotational element are rotatable together with the shaft;a first bearing disposed on the first side in the axial direction with respect to a position of the pump rotational element, the first bearing supporting the shaft while allowing rotation of the shaft relative to the housing; anda second bearing disposed on a second side in the axial direction with respect to the position of the pump rotational element, the second side being opposite to the first side, and the second bearing supporting the shaft while allowing the rotation of the shaft relative to the housing.2. The electric oil ...

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Номер записи: 29
05-05-2016 дата публикации

METHOD AND APPARATUS FOR OPERATING AN EC-FUEL PUMP

Номер: US20160123267A1
Автор: KAHLERT Andreas
Принадлежит:

A method for operating an electronically commutated fuel pump with an upstream fuel pump electronics unit of a motor vehicle, wherein the fuel pump is operated at a predefined speed, the method includes detecting a speed irregularity of the electronically commutated fuel pump, the speed irregularity being determined by examining the synchronicity between rotary field and rotor of the fuel pump, and switching over the speed of the electronically commutated fuel pump to a higher speed value than the predefined speed until a stable operation of the fuel pump without loss of synchronicity between rotary field and rotor of the fuel pump is achieved, the switchover of the fuel pump to the higher speed is performed by a predefined speed jump or is performed at predefined speed steps, the speed being increased until stable operation of the fuel pump is achieved. 1. A method for operating an electronically commutated fuel pump with an upstream fuel pump electronics unit of a motor vehicle , the fuel pump being operated at a predefined speed , the method comprising:detecting a speed irregularity of the electronically commutated fuel pump, the speed irregularity being determined by examining the synchronicity between rotary field and rotor of the fuel pump; andswitching over the speed of the electronically commutated fuel pump to a higher speed value than the predefined speed until a stable operation of the fuel pump without loss of synchronicity between rotary field and rotor of the fuel pump is achieved, the switchover of the fuel pump to the higher speed being performed in one step by a predefined speed jump or being performed at predefined speed steps, the speed being increased until stable operation of the fuel pump is achieved.2. The method of claim 1 , wherein the speed of the fuel pump is lowered again after a predefined time once a speed value for stable operation has been reached.3. The method of claim 1 , wherein the fuel pump is operated again at the predefined ...

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Номер записи: 30
04-05-2017 дата публикации

VANE PUMP DEVICE

Номер: US20170122312A1
Автор: NISHIKAWA Toshio
Принадлежит: Showa Corporation

An inner-plate cam ring side recess portion is formed in a cam ring side end surface of an inner plate, communicates with a columnar groove which is a center side space in a vane grooves, and supplies a working fluid to the columnar groove. The inner-plate cam ring side recess portion is divided into multiple sections between a first side discharge port, through which the working fluid is discharged at a first discharge pressure from a pump chamber, and a second side suction port through which the working fluid is suctioned into a pump chamber discharging the working fluid at a second discharge pressure. An angle of a separation portion in a rotation direction is smaller than or equal to an angle between the first side discharge port and the second side suction port. 1. A vane pump device comprising:multiple vanes;a rotor that includes vane grooves which are recessed from an outer circumferential surface of the rotor in a rotational radial direction such that the vanes are supported to be movable in the rotational radial direction, and that rotates due to a rotating force received from a rotation shaft;a cam ring that includes an inner circumferential surface facing the outer circumferential surface of the rotor, and is disposed to surround the rotor;one side member disposed on one end portion side of the cam ring in a direction of a rotational axial direction to cover an opening of the cam ring; andanother side member disposed on the other end portion side of the cam ring in the rotational axial direction to cover an opening of the cam ring,wherein a recess portion is formed in a cam ring side end surface of at least one of the one side member and the other side member, communicates with a center side space which is a space in the vane grooves on a rotation center side, and supplies a working fluid to the center side space, andwherein the recess portion is divided into multiple sections between a first side discharge port, through which the working fluid is ...

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Номер записи: 31
27-05-2021 дата публикации

ELECTRIC OIL PUMP

Номер: US20210156380A1
Автор: KATAOKA Shigehiro, KOBAYASHI Yoshiyuki
Принадлежит:

An electric oil pump includes a motor including a shaft, a pump driven via the shaft, and an inverter assembly located on a rear side of the motor and secured to the motor. The motor includes a rotor, a stator, and a motor housing that houses the rotor and the stator. The pump includes a pump rotor and a pump housing. The motor housing has a bottomed tubular shape that includes a bottom portion on a side of the inverter assembly, and the inverter assembly includes an inverter housing including a circuit board housing that houses a circuit board and a busbar holder. The busbar holder is on a side opposite to a terminal that is electrically connected to the circuit board with respect to the shaft in the circuit board housing. 110-. (canceled)11. An electric oil pump comprising:a motor that includes a shaft extending in an axial direction with a central axis;a pump that is located on one side of the motor in the axial direction and is driven by the motor via the shaft to eject an oil; andan inverter assembly that is located on another side of the motor in the axial direction and is secured to the motor; wherein a rotor that is secured to the shaft on a side in the axial direction;', 'a stator that is located outside the rotor in a radial direction; and', 'a motor housing that houses the rotor and the stator;, 'the motor includes a pump rotor that is attached to the shaft projecting on one side in the axial direction from the motor; and', 'a pump housing that includes a housing that houses the pump rotor;, 'the pump includesthe motor housing has a bottomed tubular shape that includes a bottom portion on a side of the inverter assembly;the inverter assembly includes an inverter housing that includes a circuit board housing that houses a circuit board and a busbar holder; andthe busbar holder is on a side opposite to a side of an external terminal that is electrically connected to the circuit board with respect to the shaft of the motor in the circuit board housing.12. ...

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Номер записи: 32
10-05-2018 дата публикации

ROTARY PISTON AND CYLINDER DEVICES

Номер: US20180128105A1
Автор: Lindsey Stephen F.
Принадлежит: Lontra Limited

A transmission assembly for a rotary piston and cylinder device, comprising a first gear () and a gear sub-assembly (), the first gear connectable to a rotatably mounted shutter () of the device, and the first gear extending from a side of the shutter, and the first gear connected to the gear sub-assembly which converts rotation to an axis of rotation different to that of the shutter. 119-. (canceled)20. A rotary piston and cylinder device , comprising:a rotor, the rotor comprising a piston, the rotor is arranged to rotate about an axis of rotation,a stator,the rotor and the stator defining an annular working chamber, and a rotor surface in part defining the working chamber,the device further comprising a rotatable shutter which serves to divide the working chamber, but which comprises a slot to nevertheless allow passage of the piston, andthe rotor surface being a concave surface which faces generally radially inwards towards the axis of rotation of the rotor.21. A rotary piston and cylinder device as claimed in comprising:a transmission assembly comprising a first gear and a gear sub-assembly, the first gear connectable to the rotatable shutter of the device, the first gear extending from a side of the shutter, the shutter having an axis of rotation which is non-intersecting in relation to the axis of rotation of the rotor, and the stator comprising an opening through which the shutter is receivable in the working chamber so as to intersect said working chamber, andthe first gear connected to the gear sub-assembly which converts rotation to an axis of rotation different from the axis of rotation of the shutter, and the gear sub-assembly comprises a second gear which meshes with the first gear and the second gear has an axis of rotation parallel to that of the first gear.22. A rotary piston and cylinder device as claimed in in which the first gear is located radially inwardly of the shutter.23. A rotary piston and cylinder device as claimed in in which an axis of ...

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Номер записи: 33
10-05-2018 дата публикации

Fluid Pump

Номер: US20180128268A1
Автор: AYDIN Ümit, BORNEMANN NILS, CASELLAS Antonio, TILLER STEFAN
Принадлежит:

The invention relates to a fluid pump, driven by means of an electric motor, which is coupled to a pump rotor of the fluid pump, wherein the electric motor is an axial-flux electric motor, the electric-motor rotor of which is also the pump rotor, and the pump rotor and the electric-motor rotor are accommodated in a common housing, in which the pump rotor and the electric-motor rotor rotate while integrated as combination rotor in a disk shape, wherein the common housing has a fluid inlet and a fluid outlet to the combination rotor. The invention further relates to a production method for such a fluid pump. 1. A fluid pump , driven by an electric motor which is coupled to a pump rotor of the fluid pump , wherein the electric motor is an axial flow electric motor , the electric motor rotor of which is also the pump rotor , and the pump rotor and the electric motor rotor are accommodated in a common housing in which the pump rotor and the electric motor rotor rotate in an integrated fashion in the shape of a disk as a combination rotor , wherein the common housing has a fluid inflow and a fluid outflow to and from the combination rotor.2. The fluid pump as claimed in claim 1 , wherein a pump chamber and magnets or soft-magnetic elements of the electric motor claim 1 , which are oriented axially with respect to the rotational axis of the combination rotor claim 1 , are arranged extending from said rotational axis when viewed in a radial direction.3. The fluid pump as claimed in claim 1 , wherein in the combination rotor claim 1 , a multiplicity of axially oriented magnets or soft-magnetic elements are distributed along a circumference of the combination rotor.4. The fluid pump as claimed in claim 1 , wherein at least one stator of the electric motor is arranged at an end side with respect to the combination rotor claim 1 , wherein cores of the stator claim 1 , which are oriented axis-parallel with respect to the rotational axis of the rotor claim 1 , have at least ...

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Номер записи: 34
23-04-2020 дата публикации

CONTROLLING THE GAP GEOMETRY IN AN ECCENTRIC SCREW PUMP

Номер: US20200124046A1
Автор: Krampe Paul, Rolfes Michael
Принадлежит: VOGELSANG GMBH & CO. KG

A progressive cavity pump for transporting a liquid containing solids comprises a helical rotor, a stator having an inlet and an outlet, within which the helical rotor is rotatably disposed about a longitudinal axis of the stator, and comprising a helical inner wall corresponding to the helical rotor. The helical rotor comprises a shape tapering down toward the outlet or inlet, and the helical rotor and stator are disposed relative to each other and implemented such that at least one chamber is formed for transporting the liquid, and the chamber is cut off by a constriction. The progressive cavity pump includes an adjusting device for adjusting a relative axial position of the helical rotor and stator, wherein the adjusting device is implemented for expanding the constriction between the helical rotor and stator. 127-. (canceled)28. A progressive cavity pump for transporting a liquid containing solids comprising:a helical rotor;a stator within which the helical rotor is rotatably disposed about a longitudinal axis of the stator, the stator further comprising an inlet, an outlet, and a helical inner wall corresponding to the helical rotor; and wherein the helical rotor comprises a shape tapering down toward the outlet or the inlet, and the helical rotor and the stator are disposed relative to each other such that at least one chamber is formed for transporting the liquid, and the chamber is cut off by a constriction between the helical rotor and stator; andan adjusting device for adjusting a relative axial position of the helical rotor and stator, wherein the adjusting device is adapted to adjust the constriction between the helical rotor and stator.29. The progressive cavity pump according to claim 28 , wherein the shape of the helical rotor tapering down toward the outlet or the inlet is conical.30. The progressive cavity pump according to claim 28 , wherein the shape of the helical rotor tapering down toward the outlet or the inlet is of a variable eccentricity.31 ...

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Номер записи: 35
19-05-2016 дата публикации

Metal Bellows with Guide Rings

Номер: US20160138375A1
Автор: Semple Ryan P., Tanner David
Принадлежит:

A well pump assembly has a pump driven by an electrical motor. A seal section reduces a pressure difference between a dielectric lubricant in the motor and a hydrostatic well fluid Pressure. The seal section has a housing containing a guide tube concentric with the axis. Contractible and extensible inner and outer bellows surround the guide tube. An inner bellows guide ring is secured to the inner bellows between ends and has an inner surface with an inner diameter smaller than a minimum inner diameter of the inner bellows for sliding engagement with an outer surface of the guide tube as the inner bellows lengthens and contracts. The outer bellows has a guide ring secured between ends and having an outer surface with an outer diameter larger than a maximum outer diameter of the outer bellows for sliding engagement with an inner surface of the housing. 1. A well pump assembly for pumping well fluid from a well , comprising:a pump;an electrical motor operatively coupled to the pump for driving the pump;a seal section operatively coupled to the motor for reducing a pressure difference between a dielectric lubricant in the motor and a hydrostatic well fluid pressure on an exterior of the motor, the seal section comprising:a guide member having a longitudinal axis and a cylindrical guide surface;a bellows coaxial with the guide member and having a flexible corrugated wail that is closely spaced to the guide surface and moves axially relative to the guide surface when the bellows contracts and extends; anda guide ring secured to the wall of the bellows between ends of the bellows, the guide ring having a contacting surface protruding slightly from the wall and slidingly engaging the guide surface as the bellows contracts and extends.2. The assembly according to claim 1 , further comprising:a wear resistant element on at least one of the surfaces of the guide ring and the guide member to reduce friction and increase wear life.3. The assembly to according to claim 1 , ...

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Номер записи: 36
19-05-2016 дата публикации

G-ROTOR PUMP ASSEMBLY

Номер: US20160138587A1
Автор: HUANG Zugang, Stuart Charles G.
Принадлежит:

A G-rotor pump assembly is disclosed. The assembly makes use of a housing having a pump/motor housing portion and a laterally projecting housing portion. An electric motor is disposed within the pump/motor housing portion. A controller has a circuit board with a portion which is positioned within the pump/motor housing portion so as to be generally axially aligned with the electric motor and in proximity to the electric motor. A lower cover is configured to engage with the housing to encapsulate the controller and the electric motor within the housing. 1. A G-rotor pump assembly comprising:a housing having a pump/motor housing portion and a laterally projecting housing portion;an electric motor disposed within the pump/motor housing portion;a controller having a circuit board with a portion which is positioned within the pump/motor housing portion so as to be generally axially aligned with the electric motor and in proximity to the electric motor; anda lower cover configured to engage with the housing to encapsulate the controller and the electric motor within the housing.2. The G-rotor pump assembly of claim 1 , wherein:the electric motor includes a motor shaft; andthe circuit board of the controller includes an opening to allow a portion of the motor shaft to project through the circuit board.3. The G-rotor pump assembly of claim 1 , further comprising an upper cap and a lower cap for assisting in supporting the electric motor within the housing.4. The G-rotor pump assembly of claim 1 , wherein the housing includes a pump/motor housing portion and a laterally projecting portion claim 1 , and wherein portions of the controller are positioned within both the pump/motor housing portion and the laterally projecting portion.5. The G-rotor pump assembly of claim 4 , further comprising a lower motor support member configured to be positioned within the pump/motor housing portion for assisting in supporting the electric motor within the housing.6. The G-rotor pump ...

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Номер записи: 37
19-05-2016 дата публикации

PUMP INTEGRATED WITH TWO INDEPENDENTLY DRIVEN PRIME MOVERS

Номер: US20160138588A1
Автор: Afshari Thomas
Принадлежит: Project Phoenix, LLC

A pump having at least two fluid drivers and a method of delivering fluid from an inlet of the pump to an outlet of the pump using the at least two fluid drivers. Each of the fluid drives includes a prime mover and a fluid displacement member. The prime mover drives the fluid displacement member to transfer fluid. The fluid drivers are independently operated. However, the fluid drivers are operated such that contact between the fluid drivers is synchronized. That is, operation of the fluid drivers is synchronized such that the fluid displacement member in each fluid driver makes contact with another fluid displacement member. The contact can include at least one contact point, contact line, or contact area. 1. A pump comprising:a casing defining an interior volume, the casing including a first port in fluid communication with the interior volume, and a second port in fluid communication with the interior volume;a first gear disposed within the interior volume, the first gear having a first gear body and a plurality of first gear teeth;a second gear disposed within the interior volume, the second gear having a second gear body and a plurality of second gear teeth projecting radially outwardly from the second gear body, the second gear is disposed such that a second face of at least one tooth of the plurality of second gear teeth aligns with a first face of at least one tooth of the plurality of first gear teeth;a first motor that rotates the first gear about a first axial centerline of the first gear in a first direction to transfer a fluid from the first port to the second port along a first flow path; anda second motor that rotates the second gear, independently of the first motor, about a second axial centerline of the second gear in a second direction to contact the second face with the first face and to transfer the fluid from the first port to the second port along a second flow path.2. The pump of claim 1 , wherein the first gear body includes a first ...

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Номер записи: 38
17-05-2018 дата публикации

VARIABLE CAPACITY OIL PUMP

Номер: US20180135625A1
Автор: NAGANUMA Atsushi, Watanabe Yasushi
Принадлежит: Hitachi Automotive Systems, Ltd.

A variable capacity oil pump controlling a pump discharge pressure to a two-stage characteristic includes: an electromagnetic switching valve formed to enable a switching between a state in which oil is discharged from a second control oil chamber and a state in which oil is introduced into the second control oil chamber; a pilot valve controlled by a discharge pressure by oil and a biasing force by a control spring and configured to supply a hydraulic pressure to a first control oil chamber in accordance with oil, to interrupt the supply of the hydraulic pressure, and to supply or exhaust the hydraulic pressure to or from second control oil chamber; and an intermediate passage. Oil exhausted from the first and second control oil chambers is not introduced into an inside of a control spring housing chamber in which a control spring of the pilot valve is arranged. 1. A variable capacity oil pump comprising:a pump constituting member which operatively discharges a working oil sucked from a suction section through a discharge section, with a volume of a plurality of pump chambers varied by a rotational drive through an internal combustion engine;a movable member which is operatively moved to modify a volume variation quantity of the plurality of pump chambers according to a movement of the movable member;a biasing mechanism which is installed in a state in which a set load is provided to bias the movable member in a direction in which the volume variation quantity of the plurality of pump chambers is increased;a first control oil chamber configured to act a force in a direction in which the volume variation quantity of the plurality of pump chambers is decreased upon the movable member in response to a supply of the working oil into the first control oil chamber;a second control oil chamber configured to act a force in a direction in which the volume variation quantity of the plurality of pump chambers is increased upon the movable member in response to a supply of the ...

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Номер записи: 39
02-06-2016 дата публикации

Remote air supply

Номер: US20160153451A1
Автор: Ingram Marty
Принадлежит:

A cleaning system for providing a compressed fluid and to clean a coil of an air conditioner include a portable power supply; a motor connected to the portable power supply to rotate a shaft; a cam connected to the shaft to drive a reciprocating linear motion camshaft; and a piston connected to the camshaft to provide pressurized fluid. 1) A cleaning system for providing a compressed fluid and to clean a coil of an air conditioner , comprising:a portable power supply;a motor connected to the portable power supply to rotate a shaft;a cam connected to the shaft to drive a reciprocating linear motion camshaft;a piston connected to the camshaft to provide pressurized fluid.2) A cleaning system for providing a compressed fluid and to clean a coil of an air conditioner as in claim 1 , wherein the portable power supply is a cordless drill.3) A cleaning system for providing a compressed fluid and to clean a coil of an air conditioner as in claim 1 , wherein the shaft is connected to a drill bit of a cordless drill.4) A cleaning system for providing a compressed fluid and to clean a coil of an air conditioner as in claim 1 , wherein the piston is a rotary piston.5) A cleaning system for providing a compressed fluid and to clean a coil of an air conditioner as in claim 1 , wherein the piston is a scroll piston.6) A cleaning system for providing a compressed fluid and to clean a coil of an air conditioner as in claim 1 , wherein the piston is an air piston. This invention relates generally to pressure systems and more particularly to a portable pressure system used principally for gently cleaning fine particulate matter from hard to reach AC evaporator coils.Dirt and other contaminates, such as grease, pollen, hair spray, etc., on air-conditioning coils present a serious maintenance problem in residential or commercial buildings. Dirty coils reduce airflow, decrease efficiency, reduce HVAC capacity, and are a major cause of compressor failure and sick building syndrome.Indoor ...

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Номер записи: 40
09-06-2016 дата публикации

HYDRAULIC CONTROL UNIT HAVING INTERFACE PLATE DISPOSED BETWEEN HOUSING AND PUMP

Номер: US20160160982A1
Автор: Edler Andrew N., Fisher Daniel P., Grogg John A.
Принадлежит:

A hydraulic control unit that delivers hydraulic fluid to a limited slip differential constructed in accordance to the present disclosure can include a hydraulic control unit housing, a motor, a gerotor gear assembly and an interface plate. The hydraulic control unit housing can have a housing mounting surface. The motor can include an output shaft and a motor mounting plate that has a motor mounting surface. The gerotor gear assembly can include an inner and outer gerotor gear. The outer gerotor gear can be formed of a first material having a first coefficient of expansion. The interface plate can be mounted between the housing mounting surface and the motor mounting surface. The interface plate can receive the outer gerotor gear in an interference fit. The interface plate is formed of a second material having a second coefficient of expansion that is substantially equivalent to the first coefficient of expansion. 1. A hydraulic control unit that delivers hydraulic fluid to a limited slip differential , the hydraulic control unit comprising:a hydraulic control unit housing having a housing mounting surface, the housing mounting surface defining a fluid inlet port therein;a motor having an output shaft and a motor mounting plate that has a motor mounting surface;a gerotor gear assembly including an inner gerotor gear and an outer gerotor gear, wherein the outer gerotor gear is formed of a first material having a first coefficient of expansion, the inner gerotor gear coupled for rotation with the output shaft; andan interface plate mounted between the housing mounting surface and the motor mounting surface, the interface plate having an inner diameter that defines an opening that receives the outer gerotor gear in an interference fit, wherein the interface plate is formed of a second material having a second coefficient of expansion and wherein the first and second coefficients of expansion are substantially equivalent.2. The hydraulic control unit of wherein the ...

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Номер записи: 41
07-06-2018 дата публикации

PUMP UNIT AND ACTUATOR

Номер: US20180156214A1
Автор: KOUGE Takuya, Ogawa Takayuki
Принадлежит: KYB Corporation

There is provided a pump unit capable of shortening the overall length thereof and maintaining mechanical efficiency even after long-term use and also to provide an actuator having such a pump unit, the pump unit (U) includes a hydraulic pump (P), a motor (M), a coupling () coupling a drive shaft () of the hydraulic pump (P) and a shaft () of the motor (M), a holder (H) having a housing portion (L) that is hollow and houses the coupling (), and an introduction passage (D) that guides the hydraulic oil to the housing part (L). 1. A pump unit comprising:a hydraulic pump;a motor;a coupling coupling a drive shaft of the hydraulic pump and a shaft of the motor; anda holder holding the hydraulic pump and the motor and having a housing portion that is hollow and houses the coupling,wherein the holder is provided with an introduction passage that guides hydraulic oil to the housing portion.2. The pump unit according to claim 1 ,wherein the introduction passage is connected to a suction port of the hydraulic pump.3. The pump unit according to claim 2 ,wherein the introduction passage connects a tank that stores the hydraulic oil to the suction port in order to supply the hydraulic oil to the hydraulic pump, andthe housing portion is provided between the suction port and the tank in the middle of the introduction passage.4. The pump unit according to claim 1 ,wherein the coupling is cylindrical and has either a plurality of spline grooves and a plurality of serration grooves provided in an inner periphery from one end to the other end along an axial direction in a seamless manner, andthe drive shaft and the shaft have either a plurality of spline teeth fitted to the spline grooves or a plurality of serrated teeth fitted to the serration grooves, and are fitted to the inner periphery of the coupling.5. The pump unit according to claim 1 ,wherein a protruding member protruding inwardly is provided in the middle of the inner periphery of the coupling.6. An actuator comprising:{' ...

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Номер записи: 42
28-08-2014 дата публикации

ELECTRIC OIL PUMP AND HYDRAULIC PRESSURE SUPPLY DEVICE

Номер: US20140241917A1
Автор: Irie Masaru, Suzuki Mototsugu
Принадлежит: ASMO CO., LTD.

An electric oil pump is coupled to a pump receptacle including an oil inflow passage and an oil outflow passage. The electric oil pump includes a motor, a pump rotor, a housing, and a check valve. The housing accommodates the motor and the pump rotor. The housing closes an opening of the pump receptacle and includes at least a fitted portion fitted into the pump receptacle. An oil compartment is formed between the pump receptacle and the housing. Oil flows into the oil compartment from the oil inflow passage when the pump rotor is rotated. The fitted portion is partially immersed in the oil collected in the oil compartment. The housing includes a suction port and a discharge port. A check valve, located in the housing, limits reversed flow of the oil from the oil compartment to the oil inflow passage. 1. An electric oil pump coupled to a pump receptacle including an oil inflow passage and an oil outflow passage , the electronic oil pump comprising:a motor;a pump rotor rotated when the motor is driven; the housing is formed to close an opening of the pump receptacle and includes at least a fitted portion fitted into the pump receptacle,', 'the housing includes an outer surface, and the pump receptacle includes a wall surface,', 'an oil compartment is formed between the wall surface of the pump receptacle and the outer surface of the housing,', 'oil flows into the oil compartment from the oil inflow passage when the pump rotor is rotated,', 'the fitted portion is partially immersed in the oil collected in the oil compartment, and', a suction port through which oil is drawn into the housing from the oil compartment when the pump rotor rotates, and', 'a discharge port through which oil is discharged to the oil outflow passage when the pump rotor rotates; and, 'the housing includes'}], 'a housing that accommodates the motor and the pump rotor, wherein'}a check valve located in the housing, wherein the check valve limits reversed flow of the oil from the oil compartment ...

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Номер записи: 43
14-05-2020 дата публикации

Foldable Handheld Pump

Номер: US20200149529A1
Автор: Ching Wai Kwong, Lam Koon Fung, Xing Liuxi
Принадлежит:

A hand-held inflation device comprising: a first housing () in which a motor () is mounted; a second housing () in which a compression means () for generating compressed air is mounted; the second housing () is rotatably mounted to the first housing () such that the second housing () is foldable relative to the first housing () between a folded position and an extended position; coupling means () for coupling the motor () to the compression means () in at least one position between the folded position and the extended position, such that the motor () is capable of driving the compression means (). 1. A hand-held inflation device comprising:a first housing in which a motor is mounted;a second housing in which a compression means for generating compressed air is mounted;the second housing is rotatably mounted to the first housing such that the second housing is foldable relative to the first housing between a folded position and an extended position;coupling means for coupling the motor to the compression means in at least one position in between the folded position and the extended position, such that the motor is capable of driving the compression means.2. A hand-held inflation device according to claim 1 ,wherein the coupling means comprises:a first coupling means mounted in the first housing and driven by the motor, anda second coupling means in the second housing which is capable of being coupled to the first coupling means, said second coupling means is coupled to the compression means.3. A hand-held inflation device according to claim 2 , wherein the first and second coupling means comprise a plain gear claim 2 , a curved gear or a bevel gear.4. A hand-held inflation device according to claim 1 , wherein the coupling means transfers the output of the motor to the compression means in the folded position claim 1 , such that the motor drives the compression means.5. hand-held inflation device according to claim 1 , wherein the first housing is rotatably mounted ...

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Номер записи: 44
23-06-2016 дата публикации

VARIABLE DISPLACEMENT OIL PUMP

Номер: US20160177950A1
Автор: NAGANUMA Atsushi, OHNISHI Hideaki, Saga Koji, Watanabe Yasushi
Принадлежит: Hitachi Automotive Systems, Ltd.

A variable displacement oil pump for an internal combustion engine includes a pump element to vary inside volumes of pumping chambers to suck and discharge an oil, a varying mechanism to vary a pumping volume variation quantity of the pumping chambers, with movement of a movable member such as a cam ring, an urging mechanism to urge the movable member in a direction to increase the pumping volume variation quantity, first and second control oil chambers to urge the movable member to vary the pumping volume to variation quantity, and a control mechanism, such as a pilot valve, to control the supply/drainage of the oil to or from the second control oil chamber. An operation oil pressure of the movable member is set higher than an operation oil pressure of the control mechanism in a higher pressure region. 1. A variable displacement oil pump for supplying an oil to a sliding contact portion of an internal combustion engine , the variable displacement oil pump comprising:a pump element to be rotated by the internal combustion engine, and to vary inside volumes of pumping chambers to suck the oil through a suction portion and to discharge the oil through a discharge portion;a varying mechanism to increase and decrease a pumping volume variation quantity of the pumping chambers, with movement of a movable member;an urging mechanism provided in a preloaded state and arranged to urge the movable member in a direction to increase the pumping volume variation quantity;a first control oil chamber to produce an urging force to urge the movable member in a direction to decrease the pumping volume variation quantity, by receiving supply of the oil discharged from the discharge portion;a second control oil chamber to produce an urging force to urge the movable member in a direction to vary the pumping volume variation quantity, by receiving the supply of the oil discharged from the discharge portion; anda control mechanism operated before the pumping volume variation quantity ...

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Номер записи: 45
09-07-2015 дата публикации

ELECTRIC COMPRESSOR

Номер: US20150192124A1
Автор: Fukutani Yoshikazu, MURAKAMI Kazuo, SUITOU Ken, TSUBAI Shinji
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

An electric compressor is provided with a compression mechanism, an electric motor, a motor housing, discharge housing and an intermediate pressure housing. The compression mechanism has a compression chamber and is driven by the electric motor. The motor housing accommodates therein the electric motor and the compression mechanism and formed therein an injection port. The discharge housing has therein a discharge chamber into which compressed refrigerant is discharged. The intermediate pressure housing has therein an introduction port for introducing intermediate pressure refrigerant from an external refrigerant circuit and a communication passage that provides communication between the introduction port and the injection port of the motor housing. The motor housing, discharge housing and the intermediate pressure housing has a bolt fastening hole, and a bolt is inserted in the bolt fastening holes to integrally fix the motor housing, discharge housing and the intermediate pressure housing. 1. An electric compressor comprising:a compression mechanism having a compression chamber;an electric motor driving the compression mechanism to draw refrigerant into the compression chamber and compress the refrigerant in the compression chamber;a motor housing accommodating the electric motor and the compression mechanism, the motor housing having an injection port that communicates with the compression chamber, the compression chamber being on the way of compression;a discharge housing having a discharge chamber into which the compressed refrigerant is discharged;an intermediate pressure housing having an introduction port for introducing intermediate pressure refrigerant from an external refrigerant circuit and a communication passage that provides communication between the introduction port and the injection port, the introduction port and the communication passage cooperating with the injection port to allow the intermediate pressure refrigerant to be injected into the ...

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Номер записи: 46
29-06-2017 дата публикации

CONTAINER ASSEMBLY FOR A PUMP

Номер: US20170184098A1
Автор: ANDREIS Diego, Lucchesi Pierpaolo
Принадлежит:

A container assembly () for a pump is described, provided with at least one pumping group () and with at least one system () for transmitting power to such pumping group (). The container assembly () comprises at least one elastic element () sealingly housed inside such container assembly () at a predefined internal wall () thereof. Inside the elastic element (), at least one cavity () is obtained which defines a corresponding air chamber configured for damping the variations of volume and the expansion of the fluid contained inside the pump following a possible change of state of the fluid itself when subjected to temperatures lower than its freezing point. 11012141618201214161810261028102632. Container assembly () for a pump provided with at least one pumping group ( , , , ) and with at least one system () for transmitting power to said pumping group ( , , , ) , the container assembly () comprising at least one elastic element () sealingly housed inside said container assembly () at a predefined internal wall () thereof , the container assembly () being characterized in that inside the elastic element () , at least one cavity () is obtained which defines a corresponding air chamber , said air chamber being configured for damping the variations of volume and the expansion of the fluid contained inside the pump following a possible change of state of said fluid when subjected to temperatures lower than its freezing point.210. Container assembly () according to claim 1 ,{'b': '22', 'characterized in that it comprises a first substantially cylindrical container vessel (),'}{'b': 20', '24', '22', '22', '12', '14', '16', '18, 'provided with an opening at one of its two ends and configured for at least partially enclosing the power transmission system (), and at least one second container vessel (), sealingly coupled with the first container vessel () at its open end and configured for hermetically enclosing, in cooperation with said first container vessel (), at least ...

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Номер записи: 47
29-06-2017 дата публикации

OIL PUMP

Номер: US20170184099A1
Автор: IIZUKA Shimpei, Kawashima Kenji, Sato Hiroaki, Watanabe Manabu
Принадлежит:

A housing of an oil pump includes a suction port, a discharge port, and a partitioning section formed to partition the suction port and the discharge port. The discharge port has discharge groove portions each formed in a groove shape so as to introduce oil from the partitioning section, and an extension portion formed adjacent to the discharge groove portions and extending continuously from an end of the partitioning section. The extension portion has a taper surface extending from an end of an upper surface of the partitioning section to form a downward slope. 1. An oil pump comprising:a rotating shaft adapted to be rotated by an external drive source;an inner rotor attached to the rotating shaft;an outer rotor surrounding the inner rotor and rotated by the inner rotor; anda housing within which the rotating shaft, the inner rotor and the outer rotor are housed,the housing including a suction port from which oil is sucked in, a discharge port from which the oil is discharged, and a partitioning section formed to partition the suction port and the discharge port,wherein the discharge port has discharge groove portions each formed in a groove shape so as to introduce the oil from the partitioning section, and an extension portion formed adjacent to the discharge groove portions and extending continuously from an end of the partitioning section, andwherein the extension portion has a taper surface extending from an end of an upper surface of the partitioning section to form a downward slope.2. The oil pump according to claim 1 , wherein the discharge groove portions each have a part extending from the end of the upper surface of the partitioning section to form a downward slope claim 1 , and wherein an inclination angle of at least a part of the discharge groove portions is set to be greater than an angle of inclination of the extension portion.3. The oil pump according to claim 1 , wherein the discharge groove portions are constituted by an inner-periphery side ...

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Номер записи: 48
07-07-2016 дата публикации

BATCHING/DELIVERING SYSTEM COMPRISING AT LEAST ONE REMOTELY ACTUATED VOLUMETRIC BATCHING PUMP

Номер: US20160195086A1
Автор: Sacchet Alessandro
Принадлежит:

A batching/delivering system for delivering and batching high viscosity products, having at least one managing and actuating device, where the managing and actuating device have at least one control motor and at least one remotely-actuated volumetric batching pump for delivering and batching high viscosity products. The remotely-actuated volumetric batching pump has at least one sucking, volumetrically batching and delivering element with a first duct for sucking the product to be batched, at least one volumetric batching device of the product, and at least one second duct for exiting the product batched by the device. The device is connected to at least one control motor of the device by interposing at least one flexible rotary shaft. 15-. (canceled)6. A system for delivering and batching high viscosity products , the system comprising:a. at least one managing and actuating device;b. at least one sucking, volumetrically batching and delivering element attached to the at least one managing and actuating device; andc. at least one control motor operatively connected to the at least one managing and the actuating device.7. The system of claim 6 , where the managing and the actuating device comprise:a. at least one control motor; andb. at least one remotely-actuated volumetric batching pump8. The system of claim 6 , where the at least one sucking claim 6 , volumetrically batching and delivering element comprises:a. a first duct for sucking a product to be batched;b. at least one volumetric batching device attached to the first duct;c. at least one second duct for exiting the batched product attached to the at least one volumetric batching device; andd. at least one control and management console.9. The system of claim 8 , the managing and the actuating device further comprises at least one flexible rotary shaft operatively connected to the at least one control motor.10. The system of claim 8 , where the volumetric batching device comprises at least one pump with ...

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Номер записи: 49
06-07-2017 дата публикации

ROTARY-PISTON PUMP

Номер: US20170189593A1
Автор: Autschbach Ruediger, GOETZENICH Andreas, Steinseifer Ulrich, WAPPENSCHMIDT Johannes
Принадлежит:

The invention relates to a rotary piston pump, in particular for pumping blood, comprising a piston rotor () which has particularly two or three faces when seen in cross-section, which is mounted in a piston chamber () and eccentrically rotates, the piston rotor () having in its interior a plurality of magnetically interacting elements (), in particular permanent magnets and/or coils, and being driven by the magnetic interaction of these elements () with at least one moving magnetic field. 1. A rotary-piston pump , particularly for supplying blood , the pump comprising:a stator housing forming a piston chamber;a piston rotor having two or three lobes as seen in cross-section and rotatable eccentrically in the piston chamber;a plurality of magnetically attractable elements inside the piston rotor andmeans for generating at least one moving magnetic field for driving the elements by magnetic interaction.2. The rotary-piston pump according to claim 1 , wherein the at least one moving magnetic field is produced outside the piston chamber and acts through walls of the stator housing delimiting the piston chamber.3. The rotary-piston pump according to claim 1 , wherein the magnetically attractable elements in the piston rotor are positioned in the vicinity of ends of the lobes and the means for generating includes a plurality of coils alternatingly energizable in order to produce the moving magnetic field and positioned angularly in the stator housing around and outside of the piston chamber claim 1 , with the magnetically attractable elements and the coils being situated radially opposite one another.4. The rotary-piston pump according to claim 3 , wherein the magnetically attractable elements and the energizable coils are arranged in at least two respective groups spaced from each other axially claim 3 , with each group of magnetically attractable elements being associated with a respective group of energizable coils for magnetic interaction and in particular claim 3 , ...

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Номер записи: 50
05-07-2018 дата публикации

VARIABLE DISPLACEMENT TYPE OIL PUMP

Номер: US20180187676A1
Автор: NAGANUMA Atsushi, OHNISHI Hideaki, Saga Koji, Watanabe Yasushi
Принадлежит: Hitachi Automotive Systems, Ltd.

In a variable displacement type oil pump, a swing member accommodates a pump forming member, and swings to vary a quantity of change of a volumetric capacity of each pump chamber. A biasing member biases the swing member in a direction to increase the quantity of change of the volumetric capacity of each pump chamber. A first control oil chamber applies a first torque to the swing member in a direction to reduce the quantity of change of the volumetric capacity of each pump chamber. A second control oil chamber applies a second torque to the swing member in a direction to increase the quantity of change of the volumetric capacity of each pump chamber, wherein the second torque is larger than the first torque. A switching mechanism switches between supply and drain of working oil with respect to the second control oil chamber. 1. A variable displacement type oil pump comprising:a pump forming member configured to be rotationally driven so as to change a volumetric capacity of each of a plurality of pump chambers, and suck working oil through a suction part, and discharge working oil through a discharge part;a swing member configured to accommodate the pump forming member inside of the swing member, and swing about a swing fulcrum so as to vary a quantity of change of the volumetric capacity of each of the plurality of pump chambers opened to the discharge part, wherein the swing fulcrum is set at an outer periphery of the swing member;a biasing member mounted with application of a setting load so as to bias the swing member in a direction to increase the quantity of change of the volumetric capacity of each of the plurality of pump chambers;a first control oil chamber configured to be supplied with working oil so as to apply a first torque to the swing member in a direction to reduce the quantity of change of the volumetric capacity of each of the plurality of pump chambers;a second control oil chamber configured to be supplied with working oil so as to apply a ...

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Номер записи: 51
06-07-2017 дата публикации

PUMP DEVICES

Номер: US20170191481A1
Автор: Blankemeier William R., Malorny Kris, Murphy Jorge G., Nard James A., Shafer Clark J., Trninich Radosav
Принадлежит: PeopleFlo Manufacturing, Inc.

The disclosure provides pumps that include improvements in construction, which involve bearing surfaces, recirculation paths, mounting footprints, impeller vane starting diameters, canister assemblies, and rotor assembly bushing configurations. 1. A magnetically driven pump comprising:a casing having a front portion, a rear portion, a discharge port and an inlet port;a rotor assembly further comprising a rear opening having an inner wall surface and having a plurality of magnet segments connected to the inner wall surface, a central cylindrical opening having an inner wall surface that provides a radial bearing surface, a first axial bearing surface, and a second axial bearing surface;an inner magnet assembly further comprising an inner ring and a plurality of magnet segments connected to an outer surface of the inner ring and being in axial alignment with the magnet segments of the rotor assembly;a canister assembly further comprising a cylindrical portion disposed within a radial gap between the magnet segments of the inner magnet assembly and the magnet segments of the rotor assembly, and a front portion extending from the cylindrical portion and having a radial bearing surface, a first axial bearing surface, and a second axial bearing surface;wherein the radial bearing surface of the rotor assembly and the radial bearing surface of the canister assembly front portion restrict radial motion of the rotor assembly, the first axial bearing surface of the rotor assembly and the first axial bearing surface of the canister assembly front portion restrict forward motion of the rotor assembly, and the second axial bearing surface of the rotor assembly and the second axial bearing surface of the canister assembly front portion restrict rearward motion of the rotor assembly.2. (canceled)3. The pump according to claim 1 , wherein the canister assembly front portion is spaced apart from the casing front portion.4. The pump according to claim 1 , wherein the canister assembly ...

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Номер записи: 52
20-06-2019 дата публикации

Rotary piston and cylinder device

Номер: US20190186264A1
Автор: Stephen Francis Lindsey
Принадлежит: Lontra Ltd

A rotary piston and cylinder device ( 1 ) comprising a rotor ( 2 ), a stator ( 4 ) and a rotatable shutter ( 3 ), a rotary piston and cylinder device comprising a rotor, a rotatable shutter, the rotor comprising a piston ( 5 ), the piston comprising a first side ( 5 b ) and a second side ( 5 a ), the first side ( 5 b ) arranged to seal with a slot of the shutter, and comprises a working face, the second side being a substantially oppositely directed side to the first side, and the second side ( 5 a ) comprising a sealing portion arranged to seal with the shutter slot and/or stator and a non-sealing portion arranged not to seal with the shutter slot.

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Номер записи: 53
23-07-2015 дата публикации

Integrated Brushless Direct Current Motor and Lift Pump

Номер: US20150204327A1
Автор: Pribanic Justin R.
Принадлежит: Clarcor Engine Mobile Solutions, LLC

A lift pump having a longitudinal axis and comprising first and second housing components defining an operational volume, a brushless direct current motor assembly, and a pump assembly disposed in said volume. The brushless direct current motor assembly has a motor axis eccentric with the longitudinal axis, a rotor, and a stator disposed diametrically inwardly of the rotor. The rotor further comprises a plurality of magnetic poles of alternating opposite polarity. The pump assembly has a pump annulus and a pump element. The pump annulus is disposed intermediate said first and second housing components and coaxial with the longitudinal axis. The pump element is coaxial with said motor axis, and comprises a generally cylindrical hub defining a motor assembly cavity sized to diametrically receive said motor assembly. 1. A lift pump having a longitudinal axis comprising:first and second housing components defining an inlet, an outlet, and an operational volume;a brushless direct current motor assembly having a motor axis eccentric with the longitudinal axis, a rotor comprising a plurality of magnetic poles arranged in alternating opposite polarity, and a stator comprising a number of selectively energizeable coils disposed diametrically inwardly of said rotor annulus; anda pump assembly having an inlet and outlet including a pump annulus coaxial with the longitudinal axis, a pump element coaxial with said motor axis and having a generally cylindrical hub defining a motor assembly cavity having a diametral width w and an axial depth d, wherein said motor assembly cavity is sized to diametrically receive said motor assembly so that said pump element rotates with said rotor.2. The lift pump of claim 1 , wherein said plurality of magnetic poles comprise a plurality of individual magnets of alternating opposite polarity affixed to an annulus claim 1 , and said annulus is secured diametrically within said motor assembly cavity.3. The lift pump of claim 1 , wherein said ...

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Номер записи: 54
23-07-2015 дата публикации

ELECTRIC COMPRESSOR AND METHOD FOR MANUFACTURING SAME

Номер: US20150204328A1
Автор: OTA Takayuki, TOZAWA Kosaku
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

There is provided an electric compressor to be fixed an object including a compression mechanism, an electric motor, a housing, a supporting member, and a plurality of vibration damping members. One of the housing and the supporting member has a recess and the other of the housing and the supporting member has a projection that is disposed in the recess and engaged with the recess to form a plurality of accommodating spaces on opposite sides of the projection, respectively. A filling rate of each vibration damping member in the corresponding accommodating space is changeable. There is also provided a method for manufacturing the electric compressor, including preparing a plurality of vibration damping members, choosing one of the vibration damping members, and providing the supporting member to the outer peripheral surface of the housing while accommodating the chosen vibration damping members in the respective accommodating spaces. 1. An electric compressor to be fixed to an object comprising:a compression mechanism compressing refrigerant;an electric motor driving the compression mechanism;a housing accommodating therein the compression mechanism and the electric motor;a supporting member provided to an outer peripheral surface of the housing and having a mounting member; andwherein one of the housing and the supporting member has a recess and the other of the housing and the supporting member has a projection that is disposed in the recess and engaged with the recess to form a plurality of accommodating spaces on opposite sides of the projection, respectively,a plurality of vibration damping members accommodated in the respective accommodating spaces, wherein a filling rate of each vibration damping member in the corresponding accommodating space is changeable, wherein the supporting member is configured to support the housing through the vibration damping members.2. The electric compressor according to claim 1 , wherein when amplitude of vibration of the ...

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Номер записи: 55
20-07-2017 дата публикации

ROTARY PISTON AND CYLINDER DEVICES

Номер: US20170204727A1
Автор: LINDSEY STEPHEN FRANCIS
Принадлежит:

A rotor for a rotary piston and cylinder device (), wherein at least part of an outer surface () of the rotor () is a substantially frusto-conical shaped surface. 1. A rotor for a rotary piston and cylinder device , wherein at least part of an outer surface of the rotor is a substantially frusto-conical shaped surface.2. A rotor as claimed in in which the frusto-conical surface extends for part of the height of the rotor in a direction along a rotational axis of the rotor.3. A rotor as claimed in in which a plurality of substantially frusto-conical surfaces are provided.4. A rotor as claimed in in which each frusto-conical surface has a different respective cone angle.5. A rotor as claimed in claim 3 , in which at least two of the frusto-conical surfaces are spaced-apart in a direction along a rotational axis of the rotor by an intermediate curved surface claim 3 , which is curved in cross-section.6. A rotor as claimed in in which the intermediate curved surface is provided with a fluid port.7. A rotor as claimed in in which the curved surface is substantially central of the height of the rotor.8. A rotor as claimed in in which at least two of the frusto-conical surfaces are adjacent to each other.9. A rotor as claimed in in which a single substantially frusto-conical surface is located to each side of a substantially central curved surface.10. A rotor as claimed in in which a major surface area of the outer surface of the rotor is frusto-conical.11. A rotor as claimed in in which a major portion of the outer surface comprises a single frusto-conical surface.12. A rotor as claimed in in which a major surface area of the outer surface of the rotor comprises three frusto-conical surface portions.13. A rotor as claimed in in which the outer surface substantially consists of a curved portion and of a substantially frusto-conical portion.14. A rotor as claimed in claim 1 , which comprises at least one shoulder arranged to seal with a stator claim 1 , and a sealing ...

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Номер записи: 56
28-07-2016 дата публикации

Electric Oil Pump

Номер: US20160215776A1
Автор: TAMURA Eiji
Принадлежит:

Provided is a configuration where a stator section is fastened to an electric motor part-accommodating portion at a location where an end surface of the stator section projects outwardly from an end plane of an opening of an electric motor part-accommodating portion thereby bringing the center of gravity of an electric motor part closer to the end plane of the opening of the electric motor part-accommodating portion. With this, the center of gravity of the electric motor part is brought closer to the end plane of the opening of the electric motor part-accommodating portion so as to make a rotor section difficult to receive the influence of oscillations, and consequently a phenomenon where the rotor section is shaken under the influence of oscillations can be restrained. 1. An electric oil pump comprising:a pump part composed of a pump rotor accommodated in a pump part-accommodating portion formed in a metal pump housing, and a outer rotor;an electric motor part composed of a rotor section having a permanent magnet and housed in an electric motor part-accommodating portion formed in the pump housing, and a stator section having a wire and an iron core;a fastening bracket formed integral with the pump housing to extend radially outwardly from an end plane of an opening of the electric motor part-accommodating portion;a driving rotational shaft which connects the pump rotor to the rotor section; anda pump cover including a discharge port and an intake port which communicate with the pump part, and secured to the pump housing to cover the pump part,the electric oil pump being adapted to rotate the rotor section thereby driving the pump part,wherein the electric oil pump is characterized in that the stator section is fastened to the electric motor part-accommodating portion at a location where the end surface of the stator section projects outwardly from the end plane of the opening of the electric motor part-accommodating portion thereby bringing the center of gravity ...

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Номер записи: 57
27-07-2017 дата публикации

ROTARY PISTON AND CYLINDER DEVICE

Номер: US20170211387A1
Автор: LINDSEY STEPHEN FRANCIS
Принадлежит: Lontra Limited

A rotary piston and cylinder device () comprising a rotor (), a stator and a shutter disc (), the rotor comprising a piston () which extends from the rotor into the cylinder space, the rotor and the stator together defining the cylinder space, the shutter disc passing through the cylinder space and forming a partition therein, and the disc comprising a slot () which allows passage of the piston therethrough, the slot provided between two surface portions which receive the piston therethrough,at least one of the surfaces defines a close-running region with the piston to provide a fluid seal, and for at least part of the period during which the piston passes through the slot, the close-running region is offset from a mid-plane which extends through the disc and is co-planar with the disc. 1. A rotary piston and cylinder device comprising a rotor , a stator and a shutter disc , the rotor comprising a piston which extends from the rotor into the cylinder space , the rotor and the stator together defining the cylinder space , the shutter disc passing through the cylinder space and forming a partition therein , and the disc comprising a slot which allows passage of the piston therethrough , the slot provided between two surface portions which receive the piston therethrough ,at least one of the surfaces defines a close-running region with the piston to provide a fluid seal, and for at least part of the period during which the piston passes through the slot, the close-running region is offset from a mid-plane which extends through the disc and is co-planar with the disc.2. A rotary piston and cylinder device as claimed in in which the close-running region translates relative to the thickness of the shutter disc during progression of the blade through the slot.3. A rotary piston and cylinder device as claimed in where the close-running region is spaced by a distance of 0-20% of the disc thickness from one of the opposing sides of the disc for at least part of the piston's ...

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Номер записи: 58
27-07-2017 дата публикации

ROTARY PISTON AND CYLINDER DEVICES

Номер: US20170211389A1
Автор: LINDSEY STEPHEN FRANCIS
Принадлежит: Lontra Limited

A rotary piston and cylinder device () comprising a rotor (), a stator and a shutter disc (), the rotor comprising a piston () which extends from the rotor into the cylinder space, the rotor and the stator together defining the cylinder space, the shutter disc passing through the cylinder space and forming a partition therein, and the disc comprising a slot () which allows passage of the piston therethrough, and a surface of the rotor and a surface of the stator opposing each other forming a close-running surface pair, and at least one of the surfaces comprising an abradable coating () which is provided with a plurality of recess formations, and the recess formations are discontinuous from each other. 1. A rotary piston and cylinder device comprising a rotor , a stator and a shutter disc ,the rotor comprising a piston which extends from the rotor into the cylinder space, the rotor and the stator together defining the cylinder space,the shutter disc passing through the cylinder space and forming a partition therein, and the disc comprising a slot which allows passage of the piston therethrough, and a surface of the rotor and a surface of the stator opposing each other forming a close-running surface pair, andat least one of the surfaces comprising an abradable coating which is provided with a plurality of recess formations, and the recess formations are discontinuous from each other.2. A device as claimed in in which the recess formations are discrete and spaced apart from each other.3. A device of in which the abradable coating is provided on the stator.4. A device of in which the abradable coating is provided on the rotor.5. A device as claimed in in which each recess has an angular circumferential extent on a respective surface of a maximum of 10°.6. A device as claimed in in which the recesses form a regular claim 1 , repeating pattern.7. A device as claimed in in which the recess formations are arranged in a staggered arrangement claim 1 , in relation to a net ...

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Номер записи: 59
26-07-2018 дата публикации

ROTARY PISTON PUMP COMPRISING RADIAL BEARINGS ON ONLY ONE HOUSING PART

Номер: US20180209417A1
Автор: Aleker Jochen, Boltz Jaochim, Sassen Klaus
Принадлежит:

The invention relates to a rotary piston pump () for conveying a fluid, comprising at least two rotors () with conveyor elements (), a rotational movement being implementable thereby about an rotational axis (), a working chamber on the at least two rotors (), a multi-part housing () with a first housing part () and a second housing part (), at least two radial bearing shapes () being designed on the housing () to act as a radial sliding bearing for the at least two rotors (), and the at least two radial bearing shapes () being designed on only one of said housing parts (). 116. A rotary piston pump () for conveying a fluid , the rotary piston pump comprising{'b': 52', '53', '61, 'at least two impellers () with conveying elements () by which a rotational movement about a respective axis of rotation () can be carried out,'}{'b': 62', '52, 'a working space () present at the at least two impellers (), and'}{'b': 42', '44', '43, 'a multipart housing () with a first housing part () and a second housing part (), wherein'}{'b': 37', '38', '52', '42, 'at least two radial bearing geometries (, ) for the radial plain bearing of the at least two impellers () are formed on the housing (),'}characterized in that{'b': 37', '38', '44, 'the at least two radial bearing geometries (, ) are formed on only one housing part ().'}237385244626364. The rotary piston pump as claimed in claim 1 , characterized in that all of the radial bearing geometries ( claim 1 , ) for all of the impellers () are formed on only one housing part () claim 1 , and/or the working space () is divided into an inflow working space () and into an outflow working space ().31843443738. The rotary piston pump as claimed in claim 1 , characterized in that a centering geometry () for the radial centering of another housing part () is formed on the housing part () with the at least two radial bearing geometries ( claim 1 , ).45267447243. The rotary piston pump as claimed in claim 1 , characterized in that the at least ...

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Номер записи: 60
13-08-2015 дата публикации

Method for Operating a Multi-phase Pump and Apparatus Therefor

Номер: US20150226214A1
Автор: BRANDT JENS-UWE, Rohlfing Gerhard
Принадлежит:

The invention concerns a method and an apparatus for operating a multi-phase pump which has a suction-side inlet () and a discharge-side outlet () and which pumps a multi-phase mixture charged with solids, comprising the following steps: 11020. A method for operating a multiphase pump having a suction-side inlet () and a discharge-side outlet () and with which a multiphase mixture loaded with solids is pumped , comprising:{'b': '45', 'a. pumping the multiphase mixture into a discharge-side separation chamber (),'}{'b': '45', 'b. separating a gaseous phase from a liquid phase and a solid phase in the discharge-side separation chamber (),'}{'b': '45', 'c. separating the liquid phase from the solid phase in the discharge-side separation chamber (),'}d. supplying a portion of the liquid phase freed from the solid phase to the suction side.24545. The method according to claim 1 , characterized in that the solid phase separated in the discharge-side separation chamber () is removed from the discharge-side separation chamber ().3. The method according to claim 2 , characterized in that the solid phase is either continuously removed by a rotary valve or cyclone separator claim 2 , or discontinuously removed by a valve claim 2 , liquid slugs or an inspection flap.4456120. The method according to claim 1 , characterized in that the gaseous phase is removed from the discharge-side separation chamber () separately from the liquid phase by a gas discharge outlet () separated from the discharge-side outlet () for the liquid phase.5. The method according to claim 1 , characterized in that the liquid phase separated from the solid phase is supplied to the suction side in a regulated manner.645904590. The method according to claim 1 , characterized in that the liquid phase is conducted from the discharge-side separation chamber () into a reservoir () separated from the discharge-side separation chamber () and is supplied from the reservoir () to the suction side.7. The method ...

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Номер записи: 61
11-08-2016 дата публикации

VEHICLE HYDRAULIC SUPPLY APPARATUS

Номер: US20160230756A1
Автор: FUKUI Taisuke, KITO Masashi, MURAI Osamu
Принадлежит: AISIN AW CO., LTD.

A vehicle hydraulic supply apparatus with an oil passage component member that includes a first surface being in contact with a first rotor that is a pump rotor of the mechanical oil pump, a second surface facing in a direction opposite to a direction in which the first surface faces and being in contact with a second rotor that is a pump rotor of the electric oil pump, and a suction oil passage and a discharge oil passage of the mechanical oil pump which are located between the first surface and the second surface, and a suction oil passage and a discharge oil passage of the electric oil pump which are located between the first surface and the second surface. 16-. (canceled)7. A vehicle hydraulic supply apparatus comprising:a mechanical oil pump configured to be driven by a driving source of a wheel;an electric oil pump configured to be driven by an electric motor; andan oil passage component member for the mechanical oil pump and the electric oil pump, wherein a first surface being in contact with a first rotor that is a pump rotor of the mechanical oil pump,', 'a second surface facing in a direction opposite to a direction in which the first surface faces and being in contact with a second rotor that is a pump rotor of the electric oil pump, and', 'a suction oil passage and a discharge oil passage of the mechanical oil pump which are located between the first surface and the second surface, and a suction oil passage and a discharge oil passage of the electric oil pump which are located between the first surface and the second surface,, 'the oil passage component member includes'}a rotation shaft center of the first rotor is disposed parallel to a rotation shaft center of the second rotor, anda rotation direction of the first rotor is opposite to a rotation direction of the second rotor.8. The vehicle hydraulic supply apparatus according to claim 7 , whereinthe oil passage component member includes, in an outer peripheral surface of the oil passage component ...

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Номер записи: 62
11-08-2016 дата публикации

ROTATORY COMPRESSOR AND REFRIGERATING CYCLE DEVICE

Номер: US20160231038A1
Автор: Gao Bin, Guo Hong, Ozu Masao, WANG Ling, XIANG Weimin, Yang Jingtao, Yu Jijiang, Zhang Cheng
Принадлежит: GUANGDONG MEIZHI COMPRESSOR CO., LTD.

A rotatory compressor and a refrigerating cycle device are provided. The rotatory compressor includes a lubricating oil in an interior of a hermetically sealed housing, and an electric motor and a rotatory compressing mechanism disposed in the housing. An internal pressure of the housing is substantially equal to a suction pressure of the compressing mechanism. The compressing mechanism includes a first bearing and a second bearing at least one of which includes an exhaust muffler. A refrigerant of the exhaust muffler flows through the sliding vane chamber and is discharged from an exhaust pipe of the compressing mechanism. 1. A rotatory compressor comprising a lubricating oil in an interior of a hermetically sealed housing , and an electric motor and a rotatory compressing mechanism disposed in the housing , whereinan internal pressure of the housing is substantially equal to a suction pressure of the compressing mechanism, and an air cylinder defining a compressing chamber and a sliding vane chamber therein;', 'a piston disposed within the compressing chamber;', 'an eccentric shaft adapted to revolute the piston;', 'a sliding vane disposed in the sliding vane chamber and adapted to reciprocate synchronously with the piston; and', 'a first bearing and a second bearing slidably supporting the eccentric shaft and connected with the sliding vane chamber,', 'wherein an exhaust muffler is within at least one of the first bearing and the second bearing, and', 'wherein a refrigerant discharged from the exhaust muffler is adapted to flow through the sliding vane chamber and to be discharged from an exhaust pipe of the compressing mechanism., 'the compressing mechanism comprises2. A rotatory compressor according to claim 1 , wherein an air cylinder A defining a compressing chamber and a sliding vane chamber therein;', 'an air cylinder B defining a compressing chamber and a sliding vane chamber therein;', 'a partition plate disposed between the air cylinder A and the air ...

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Номер записи: 63
11-08-2016 дата публикации

ELECTRIC PUMP

Номер: US20160233814A1
Автор: Okamoto Kazuaki, Yoshitani Hirotada
Принадлежит: TBK CO., LTD.

An electric oil pump constructed by integrally combining an electric motor with an oil pump, wherein the electric motor is composed of a motor casing, a drive shaft that is disposed in a motor housing chamber formed inside the motor casing and is rotatably supported, a rotor that is disposed on the drive shaft, and a stator that is located inside the motor housing chamber and is attached to the motor casing. The electric oil pump is equipped with an internal controller that controls application of electric power to the stator so as to cause the drive shaft to be driven to rotate via the rotor. 1. An electric pump comprising an integral combination of a brushless electric , motor and a liquid pump rotatably driven by the electric motor , whereinthe electric motor comprises a motor case, a motor drive shaft that is arranged in a case internal space formed inside the motor case and that is rotatably supported by the motor case, a rotor disposed on the motor drive shaft, and a stator that is positioned inside the case internal space so as to surround and oppose the rotor from the outward circumferential direction and that is mounted on the motor case;electric power application control means is provided for controlling application of electric power to the stator and performing control for rotatably driving the motor drive shaft via the rotor; and a normal control mode for controlling application of electric power to the stator such that the motor drive shaft rotates in accordance with an externally inputted rotation command; and', 'a heat generation control mode for controlling application of electric power to the stator such that the stator generates heat at a higher heating efficiency than the heating efficiency of the stator when the application of electric power is controlled in the normal mode., 'the electric power application control means is provided with3. The electric pump according to claim 1 , whereinbeing provided with a temperature detector for detecting the ...

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Номер записи: 64
27-08-2015 дата публикации

VARIABLE DISPLACEMENT PUMP

Номер: US20150240809A1
Автор: Mauser Thilo
Принадлежит:

Disclosed is a pump having adjustable conveying volumes, in particular a vane, roller-cell or pendulum-slide pump, comprising a rotation assembly, a lifting ring and a rotationally driven rotor with extendable and retractable vanes, rollers or pendulum sliders that are guided in slots. 110-. (canceled)11. A variable displacement pump , in particular a vane-cell , roller-cell or pendulum-slider pump , comprising:a rotation assembly including a stroke ring and a rotationally driven rotor having retractable and extensible vanes, rollers or pendulum sliders which are guided in slots, wherein the vanes, rollers or pendulum sliders form together with the rotor and the stroke ring variable delivery cells, wherein in a centric position of the stroke ring relative to the rotor the stroke volume during rotation does not vary, while in the case of an eccentric position of the stroke ring relative to the rotor it does vary, so that the cell volume increases in a suction region of the pump and decreases in a pressure region of the pump, wherein a separation region of at least one cell width is arranged between the suction region of the pump and the pressure region of the pump in order to avoid a short-circuit between the two regions when the cells are switched to and fro between the suction and the region pressure region;side plates or housing side walls which axially seal the rotation assembly, wherein the side plates or housing side walls have on at least one side a suction-side opening (a so-called suction kidney) in the suction region and a pressure-side opening (a so-called pressure kidney) in the pressure region, wherein the pressure kidney optionally has in the direction of the separation region a peripherally extending damping notch;an adjusting device for adjusting the stroke ring, wherein the adjusting device has at least a first pressure-action surface of a control pressure chamber for generating an adjusting force upon the stroke ring, and a second pressure-action ...

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Номер записи: 65
27-08-2015 дата публикации

SCREW SPINDLE PUMP

Номер: US20150240810A1
Автор: METZ Jürgen, ZEMANEK Kris
Принадлежит:

A screw spindle pump having a housing hi which a drive spindle and at least one running spindle having profile assemblies which engage inside each other are received, the free end of the drive spindle and the end portion of the running spindle being supported on a plate which is arranged in the housing, the plate having two faces which are inclined in opposing directions relative to each other and which form a V-shape and on which one of the spindles is supported, respectively. 1. A screw spindle pump , comprising: a housing; a drive spindle; at least one running spindle , the drive spindle and the t least one running spindle being arranged in the housing and having profile assemblies which engage inside each other; a plate arranged in the housing , a free end of the drive spindle and an end portion of the running spindle being supported on the plate , wherein the plate has two faces that are inclined in opposing directions relative to each other and form a V-shape and on which one of the spindles is supported , respectively.2. The screw spindle pump according to claim 1 , wherein the inclination of the faces is such that the spindles are arranged parallel with each other during operation of the screw spindle pump.3. The screw spindle pump according to claim 1 , wherein an inclination angle between the faces and the plate is from 2° to 30°.4. The screw spindle pump according to claim 3 , wherein the inclination angle is from 2° to 12°.5. The screw spindle pump according to claim 3 , wherein both faces have a common angle of inclination.6. The screw spindle pump according to claim 1 , wherein a first of the inclined faces is inclined with respect to a longitudinal side of the plate and a second of the inclined faces is inclined with respect to an opposing longitudinal side of the plate.7. The screw spindle pump according to claim 6 , wherein a lateral inclination of the first and the second faces is from 2° to 30°.8. The screw spindle pump according to claim 7 , ...

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Номер записи: 66
27-08-2015 дата публикации

ELECTRIC PUMP

Номер: US20150240811A1
Автор: YOON Ho Eop
Принадлежит:

An electric pump includes a motor unit including a stator, a rotor core disposed inside the stator and a shaft coupled to the rotor core; a first pump unit and a second pump unit which are coupled using the shaft as a coaxial axis; a first housing in which a motor housing receiving the motor unit and a pump housing including a first pump accommodating part are integrally formed, the first pump unit being inserted in the first pump accommodating part; a second housing coupled to the first housing to cover the first pump accommodating part and including a second pump accommodating part in which the second pump unit is inserted; and a cover unit coupled to the second housing to cover the second pump accommodating part. 1. An electric pump comprising:a motor unit including a stator, a rotor core disposed inside the stator, and a shaft coupled to the rotor core;a first pump unit and a second pump unit which are coupled using the shaft as a coaxial axis;a first housing in which a motor housing receiving the motor unit and a pump housing including a first pump accommodating part are integrally formed, the first pump unit being inserted in the first pump accommodating part;a second housing coupled to the first housing to cover the first pump accommodating part and including a second pump accommodating part in which the second pump unit is inserted; anda cover unit coupled to the second housing to cover the second pump accommodating part.2. The electric pump of claim 1 , wherein each of the first pump unit and the second pump unit comprises an internal rotor coupled to the shaft and having an external lob formed thereon and an external rotor disposed outside the internal rotor and having an internal lobe formed to be engaged with the external lob.3. The electric pump of claim 2 , wherein the second pump accommodating part is formed on a front face of the second housing and a rear face of the second housing covers the first pump accommodating part.4. The electric pump of ...

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Номер записи: 67
27-08-2015 дата публикации

ELECTRIC PUMP

Номер: US20150240813A1
Автор: YOON Ho Eop
Принадлежит:

The electric pump of the present application includes a motor unit including a stator, a rotor core disposed inside the stator and a shaft coupled to the rotor core; a pump unit including an internal rotor coupled to the shaft and having an external lob formed thereon and an external rotor disposed outside the internal rotor and having an internal lob formed to be engaged with the external lob; a housing unit including a motor housing including the motor unit and a pump housing connected to the motor housing and having a pump accommodating part, in which the pump unit is inserted, formed therein; and a cover unit coupled to the housing unit to cover the pump accommodating part. 1. An electric pump , comprising:a motor unit including a stator, a rotor core disposed inside the stator, and a shaft coupled to the rotor core;a pump unit including an internal rotor coupled to the shaft and having an external lob formed thereon and an external rotor disposed outside the internal rotor and having an internal lob formed to be engaged with the external lob;a housing unit including a motor housing including the motor unit and a pump housing connected to the motor housing and having a pump accommodating part, in which the pump unit is inserted, formed therein; anda cover unit coupled to the housing unit to cover the pump accommodating part,wherein an inlet port and an outlet port are formed in the radial direction in a bottom face of the pump accommodating part and an inner face of the cover unit to be separated to each other using an inner circumference surface and an outer circumference surface acting as a boundary,an inner diameter of the inlet port based on the inner circumference surface is less than a diameter of a dedendum circle of the external lob, andan outer diameter of the inlet port based on the outer circumference surface is greater than a diameter of a dedendum circle of the internal lob.2. The electric pump claim 1 , wherein the motor housing and the pump ...

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Номер записи: 68
25-07-2019 дата публикации

Fluid Delivery System with a Shaft Having a Through-Passage

Номер: US20190226478A1
Автор: Afshari Thomas
Принадлежит:

A fluid delivery system having at least one fluid storage device and a pump with at least one fluid driver with a flow-through shaft that has a through-passage. The pump includes a casing, and at least one fluid driver having a prime mover and at least one fluid displacement member. A shaft of the prime mover and/or a shaft of the fluid displacement member and/or a common shaft of the prime mover/fluid displacement member (depending on the configuration of the pump) is a flow-through shaft with a through-passage configuration that allows fluid communication between at least one port of the pump and the at least one fluid storage device. 124.-. (canceled)25. A pump comprising:a casing defining an interior volume, the casing including a first port in fluid communication with the interior volume, and a second port in fluid communication with the interior volume;a first gear disposed within the interior volume, the first gear having a first gear body and a plurality of first gear teeth;a second gear disposed within the interior volume, the second gear having a second gear body and a plurality of second gear teeth projecting radially outwardly from the second gear body, the second gear is disposed such that a first face of at least one tooth of the plurality of first gear teeth meshes with a second face of at least one tooth of the plurality of second gear teeth when the first gear is rotated;a motor disposed in the interior volume, the motor to rotate the first gear about a first axial centerline of the first gear in a first direction to transfer a fluid from the first port to the second port along a first flow path, a meshing force from the first face to rotate the second gear about a second axial centerline of the second gear in a second direction to transfer the fluid from the first port to the second port along a second flow path; andat least one flow-through shaft disposed in at least one of the motor, the first gear and second gear, each of the at least one flow- ...

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Номер записи: 69
25-07-2019 дата публикации

MOTOR-DRIVEN ROOTS PUMP

Номер: US20190226480A1
Автор: Hirano Takayuki, KASHIWA Shintaro, MASAKI Daisuke, TAKANI Naoki
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

A rotor-chamber wall of a motor-driven Roots pump has a suction port and a discharge port. The side on which the discharge port is located with respect to a plane that includes both the rotational axis of a drive shaft and the rotational axis of a driven shaft is a first side. A first partition wall defines a gear chamber and has a first recess on the first side. A second partition wall defines the gear chamber and has a second recess. The first partition wall has a first oil supply passage that is configured to supply oil from the first recess to a first seal accommodating recess. The second partition wall has a second and a third oil supply passages. The second and the third oil supply passages are configured to supply oil from the second recess to a second and a third seal accommodating recesses, respectively. 1. A motor-driven Roots pump comprising:a housing;a drive shaft and a driven shaft that are rotationally supported by the housing in a state arranged parallel to each other in the housing;a drive gear that is fixed to the drive shaft;a driven gear that is fixed to the driven shaft and meshed with the drive gear;a drive rotor that is arranged on the drive shaft;a driven rotor that is arranged on the driven shaft and meshed with the drive rotor;an electric motor that rotates the drive shaft;a motor chamber that is formed in the housing and accommodates the electric motor;a gear chamber that is formed in the housing, accommodates the drive gear and the driven gear, and retains oil in a sealed manner; anda rotor chamber that is formed in the housing and accommodates the drive rotor and the driven rotor, whereinthe motor chamber, the gear chamber, and the rotor chamber are arranged in this order along a rotational axis of the drive shaft, a first partition wall that separates the gear chamber from the motor chamber in a direction of the rotational axis of the drive shaft,', 'a second partition wall that separates the gear chamber from the rotor chamber in the ...

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Номер записи: 70
03-09-2015 дата публикации

Pump Integrated with Two Independently Driven Prime Movers

Номер: US20150247498A1
Автор: Afshari Thomas
Принадлежит:

A pump having at least two fluid drivers and a method of delivering fluid from an inlet of the pump to an outlet of the pump using the at least two fluid drivers. Each of the fluid drives includes a prime mover and a fluid displacement member. The prime mover drives the fluid displacement member to transfer fluid. The fluid drivers are independently operated. However, the fluid drivers are operated such that contact between the fluid drivers is synchronized. That is, operation of the fluid drivers is synchronized such that the fluid displacement member in each fluid driver makes contact with another fluid displacement member. The contact can include at least one contact point, contact line, or contact area. 1. A pump comprising:a casing defining an interior volume, the casing including a first port in fluid communication with the interior volume, and a second port in fluid communication with the interior volume;a first gear disposed within the interior volume, the first gear having a first gear body and a plurality of first gear teeth;a second gear disposed within the interior volume, the second gear having a second gear body and a plurality of second gear teeth projecting radially outwardly from the second gear body, the second gear is disposed such that a second face of at least one tooth of the plurality of second gear teeth aligns with a first face of at least one tooth of the plurality of first gear teeth;a first motor that rotates the first gear about a first axial centerline of the first gear in a first direction to transfer a fluid from the first port to the second port along a first flow path; anda second motor that rotates the second gear, independently of the first motor, about a second axial centerline of the second gear in a second direction to contact the second face with the first face and to transfer the fluid from the first port to the second port along a second flow path.2. The pump of claim 1 , wherein the first gear body includes a first ...

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Номер записи: 71
25-08-2016 дата публикации

Electric Oil Pump

Номер: US20160245283A1
Автор: CHIKAOKA Takayuki
Принадлежит:

An electric oil pump is provided to including: (i) a pump part housed in a pump part-accommodating portion formed in a metal pump housing; (ii) an electric motor part housed in an electric motor part-accommodating portion formed in the pump housing; and (iii) a drive control part having (a) a control part case fastened to the pump housing and formed of synthetic resin, (b) a control board for supplying a driving current to the electric motor part, and (c) a metal control part cover fastened to the control part case and accommodating the control board. In this pump, the control part cover and the pump housing are covered with an oxide film having corrosion resistance and heat resistance at least at their outer surface, and the pump housing provided with the oxide film is fixed to an automatic transmission casing in a manner to be immersed in a hydraulic oil. 1. An electric oil pump comprising:a pump part housed in a pump part-accommodating portion formed in a metal pump housing;an electric motor part housed in an electric motor part-accommodating portion formed in the pump housing; anda drive control part comprising: a control part case fastened to the pump housing and formed of synthetic resin; a control board for supplying a driving current to the electric motor part; and a metal control part cover fastened to the control part case and accommodating the control board,wherein the pump housing is fixed to a casing of an automatic transmission in a manner to be immersed in a hydraulic oil, andwherein the control part cover and the pump housing are covered with an oxide film having corrosion resistance and heat resistance at least at their outer surface, and the pump housing provided with the oxide film is fixed to the casing of the automatic transmission in a manner to be immersed in the hydraulic oil.2. An electric oil pump as claimed in claim 1 , wherein the pump housing and the control part cover are formed of aluminum alloy claim 1 , and the oxide film comprises ...

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Номер записи: 72
25-08-2016 дата публикации

FLUID PUMP

Номер: US20160245284A1
Автор: MENDOZA HECTOR R., MORENO ALEJANDRO
Принадлежит:

A fluid pump includes a housing; an outlet; an inlet plate within the housing and having an inlet; an outlet plate disposed within the housing and having an outlet plate outlet passage; an electric motor which rotates about an axis; a pumping arrangement rotationally coupled to the electric motor such that rotation of the pumping arrangement causes fluid to be pumped from the inlet to the outlet plate outlet passage and through the outlet; a diverter plate between the outlet plate outlet passage and the electric motor and having a diverter passage which provides fluid communication from the outlet plate outlet passage, past the electric motor, to the outlet, the diverter plate also having an imperforate wall which is axially aligned with the outlet plate outlet passage such that the imperforate wall laterally directs fluid from the outlet passage to the diverter passage. 1. A fluid pump comprising:a housing;an outlet which discharges fluid from said housing;an inlet plate disposed within said housing, said inlet plate having an inlet which introduces fluid to said housing;an outlet plate disposed within said housing, said outlet plate having an outlet plate outlet passage;an electric motor disposed within said housing between said outlet plate and said outlet, said electric motor having a shaft which rotates about an axis;a pumping arrangement rotationally coupled to said shaft such that rotation of said pumping arrangement by said shaft causes fluid to be pumped from said inlet to said outlet plate outlet passage and through said outlet;a diverter plate disposed between said outlet plate outlet passage and said electric motor, said diverter plate having a diverter passage which provides fluid communication from said outlet plate outlet passage, past said electric motor, to said outlet, said diverter plate also having an imperforate wall which is axially aligned with said outlet plate outlet passage such that said imperforate wall laterally directs fluid from said ...

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Номер записи: 73
10-09-2015 дата публикации

VARIABLE DISPLACEMENT PUMP

Номер: US20150252803A1
Автор: OHNISHI Hideaki, Watanabe Yasushi
Принадлежит: Hitachi Automotive Systems, Ltd.

A variable displacement pump includes a variable mechanism configured to change a volume-variation rate of each pump chamber by movement of a movable member; a biasing mechanism provided to bias the movable member in a direction that increases the volume-variation rate; at least one reduction-side control oil chamber to which oil is supplied from a discharge portion such that the reduction-side control oil chamber applies force to the movable member in a direction that reduces the volume-variation rate; at least one increase-side control oil chamber to which oil is supplied from the discharge portion such that the increase-side control oil chamber applies force to the movable member in the direction that increases the volume-variation rate; and a control mechanism configured to control a oil quantity which is supplied to each control oil chamber. The total number of the control oil chambers is three or more. 1. A variable displacement pump comprising:pump constituting members configured to suck oil from a suction portion and discharge the oil to a discharge portion by volume variation of each of a plurality of pump chambers of the pump constituting members;a variable mechanism configured to change a rate of the volume variation of each of the plurality of pump chambers by movement of a movable member of the variable mechanism;a biasing mechanism provided to have a set load and to bias the movable member in a direction that increases the rate of the volume variation of each of the plurality of pump chambers;a reduction-side oil chamber group including at least one control oil chamber to which the oil is supplied from the discharge portion such that the at least one control oil chamber of the reduction-side oil chamber group applies force to the movable member in a direction that reduces the rate of the volume variation of each of the plurality of pump chambers;an increase-side oil chamber group including at least one control oil chamber to which the oil is supplied ...

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Номер записи: 74
17-09-2015 дата публикации

Segmented Positive Displacement Rotor Housing

Номер: US20150260184A1
Автор: Farrell Erik, FIOLKA Kyle, Juan Alejandro, Patterson Curtis, Scott Stephen F.
Принадлежит:

This disclosure concerns an advanced nutating positive displacement device having a high power to mass ratio and low production cost. This device in one example forms an exemplary pump as will be discussed in detail. The examples disclosed herein are of the rotary positive displacement type, but in a class by themselves. The devices are formed by a nutating rotor having a face comprising lobes and valleys, and a fixed stator also having a face with lobes and valleys. The face of the rotor opposes and cooperates with the face of the stator. The opposing faces define chambers that change volume with rotation of the rotor. 1. A fluid flow apparatus comprising:a. a housing;b. the housing comprised of a first housing portion having a first inner surface and a second housing portion adjacent the first housing portion having a second inner surface defining a rotor cavity;c. a first rotor within the rotor cavity having a first axis aligned with a first shaft having an axis of rotation, a front face comprising lobes and valleys, and a frusta-spherical radially outward surface;d. a second rotor within the rotor cavity having a second axis offset from co-linear to the first axis, a front face comprising lobes and valleys which intermesh with the lobes and valleys of the first rotor;e. an off-axis shaft aligned with the second rotor, fixed to rotate with the first shaft, and having an axis which is offset from the axis of the first rotor;f. wherein the lobes and valleys of the first rotor are substantially in fluid tight seal to the lobes and valleys of the second rotor at least at two points during operation of the fluid flow apparatus; andg. at least one shim positioned adjacent the off-axis shaft so as to re-position the first shaft relative to the second rotor non-collinear with the axis of the first shaft.2. The fluid flow apparatus as recited in further comprising:a. a first surface defining a reference void in the first housing portion in a surface adjacent the second ...

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Номер записи: 75
08-08-2019 дата публикации

Rotary piston and cylinder device

Номер: US20190242258A1
Автор: Stephen Francis Lindsey
Принадлежит: Lontra Ltd

A rotary piston and cylinder device comprising a rotor (2), comprising a rotor surface (2a), a stator (4), a rotatable shutter (3), a piston (5) which extends from the rotor surface, the rotor surface and the stator together defining an annular chamber, and the piston arranged to rotate, through the annular chamber, and the rotor surface being orientated at an incline to a plane (P-P) substantially perpendicular to the axis of rotation (A-A) of the rotor and the rotor surface faces generally away from, or outwardly of, the axis of rotation of the rotor.

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Номер записи: 76
08-08-2019 дата публикации

Gear Pump

Номер: US20190242380A1
Автор: LIU Wu, NGAI Chi Hang, RAMADOSS Mohanlal
Принадлежит:

A gear pump has a pump body, a pump cylinder connected with the pump body, a driving gear and a driven gear meshed with each other and disposed in the pump cylinder, and a rotor driving the driving gear through a driving shaft, and a sealing member. The pump cylinder is located between the pump body and the sealing member. The driving gear is mounted to or integrally formed with the driving shaft. The open end of the sealing member extends out of the outer housing and is sealingly connected with the pump cylinder so as to form a cavity, and the rotor and the driving gear mounted on the driving shaft are received in the cavity and have a coaxiality with the stator. 1. A gear pump comprising:a pump body with a fluid inlet and a fluid outlet;a pump cylinder, a driving gear and a driven gear being meshed with each other and received in the pump cylinder, a driving shaft being secured to the driving gear and rotating with the driving gear;a rotor attach to the driving shaft;a stator mounted on an outer housing and surrounding the rotor;a sealing member made of a non-magnetic metal material and disposed between the rotor and the stator, a gap being formed between the sealing member and the rotor to allow the rotor to rotate;wherein the pump cylinder is disposed between the pump body and the sealing member;wherein the sealing member is a cylindrical structure with an open end and an opposite closed end, the open end of the sealing member extends out of the outer housing and is sealingly connected with the pump cylinder so as to form a cavity;wherein the rotor and the driving gear mounted on the driving shaft are received in the cavity and have a coaxiality with the stator.2. The gear pump as described in claim 1 , wherein an annular flange axially protrudes from the pump cylinder and is inserted into the open end of the sealing member and in contact with an inner surface of the sealing member.3. The gear pump as described in claim 2 , wherein the pump cylinder further has ...

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Номер записи: 77
24-09-2015 дата публикации

Air intake separator systems and methods

Номер: US20150266145A1
Автор: Andrew Russell, Michael Handley, Peter VALSLER, Philip PENDRILL
Принадлежит: Veotec Americas LLC

An air intake separator system includes a plurality of vanes adapted to remove fluid or precipitation from an air stream, wherein the vanes are operably coupled to tubular rods with an interference fit. Applying an elevated temperature heat transfer fluid to the plurality of vanes removes fluid or precipitation from an air stream in order to prevent ice formation. Likewise, applying a lower temperature heat transfer fluid can cool the vanes.

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Номер записи: 78
24-09-2015 дата публикации

Motor-Pump Unit

Номер: US20150267699A1
Автор: KETTERER Dominik, PIPPES Reinhard
Принадлежит:

A motor pump unit with a multipart housing comprises a reversible internal gear machine and an electric motor with a rotor and a stator, which is coupled to the internal gear machine via a shaft rotatably mounted in the housing. One shaft end extends from the internal gear machine axially through the rotor that is carried by the shaft. First and second connecting channel ends in the working chamber of the internal gear machine are connected via check valves in the housing to a leakage channel loop, which is fluidically connected to a leakage channel that is fluidically connected to the working chamber, and which has a shaft leakage channel extending axially through the shaft and a rotor leakage channel that is fluidically connected thereto and extends axially through the rotor and/or a gap leakage channel between the rotor and stator, which is fluidically connected to the shaft leakage channel. 120.-. (canceled)21. A motor pump unit comprising:a multi-part housing comprising first, second, and third housing parts; a working chamber delimited by at least the first and second housing parts;', 'a first gear arranged in the working chamber, rotatably mounted around a pinion rotational axis that extends in an axial direction, the first gear comprising an externally toothed pinion having a plurality of pinion teeth;', 'a second gear arranged in the working chamber, rotatably mounted around a hollow gear rotational axis arranged in parallel to the pinion rotational axis and eccentrically mounted relative to the first gear, the second gear comprising an internally toothed hollow gear having a plurality of hollow gear teeth, at least some of which mesh in an engagement area with at least some of the plurality of pinion teeth of the first gear, wherein the internal gear machine is configured to pressurize the working chamber with high pressure fluid of a fluid pressurizing medium in a first operating direction in which the first and second gears rotate in a first rotational ...

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Номер записи: 79
13-09-2018 дата публикации

VARIABLE DISPLACEMENT-TYPE OIL PUMP

Номер: US20180258930A1
Автор: NAGANUMA Atsushi, OHNISHI Hideaki
Принадлежит: Hitachi Automotive Systems, Ltd.

Variable displacement-type oil pump has pump configuration unit driven by engine and discharging oil sucked from inlet portion from outlet portion by volumes of a plurality of pump chambers being varied; cam ring changing volume variation of each pump chamber by moving; coil spring forcing cam ring in direction in which volume variation of each pump chamber is increased; control oil chamber forcing cam ring in direction in which volume variation of each pump chamber is decreased; drain port draining oil from control oil chamber; control valve into which a downstream side oil discharged from outlet portion is introduced, and which adjusts internal pressure of control oil chamber by supplying oil into control oil chamber when hydraulic pressure of the introduced oil exceeds a predetermined setting working pressure. With this configuration, it is possible to suppress increase in electric power consumption associated with an electrical control mechanism. 1. A variable displacement-type oil pump comprising:a pump configuration unit that is driven and rotates by an engine and discharges oil sucked from an inlet portion from an outlet portion by volumes of a plurality of pump chambers being varied;a movable member that is able to change a volume variation of each of the plurality of pump chambers by movement of the movable member;a forcing mechanism that is installed with a set load provided and forces the movable member in a direction in which the volume variation of each of the plurality of pump chambers is increased;one or more control oil chambers that changes the volume variation of each of the plurality of pump chambers, the control oil chambers including at least a decrease side control oil chamber that exerts a force on the movable member in a direction in which the volume variation of each of the plurality of pump chambers is decreased by being supplied with the oil discharged from the outlet portion;a drain mechanism that discharges the oil from specified one ...

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Номер записи: 80
01-10-2015 дата публикации

ROTARY PISTON PUMP HAVING DIRECT DRIVE

Номер: US20150275893A1
Автор: Krampe Paul, Vogelsang Hugo
Принадлежит:

The invention relates to a rotary piston pump comprising a pump housing with a pump chamber, an inlet and an outlet opening, a first multi-lobed rotary piston arranged in the pump chamber and rotatably mounted around a first axis and a second multi-lobed rotary piston arranged in the pump chamber which is rotatably mounted around a second axis spaced apart from the first axis and meshes with the first rotary piston, wherein the first and second rotary pistons, by rotating around the first and the second axis respectively, create a fluid flow from the inlet to the outlet opening, a drive unit which is mechanically coupled with the rotary pistons in order to drive the rotary pistons. According to the invention, the drive unit comprises a first electric drive motor, which is mechanically coupled with the first rotary piston for driving the first rotary piston, and a second electric drive motor, which is mechanically coupled with the second rotary piston for driving the second rotary piston. 2. Rotary lobe pump according to claim 1 ,wherein the first drive motor directly drives a first shaft on which the first rotary piston is fixed in a torque-resistant manner and that the second drive motor directly drives a second shaft on which the second rotary piston is fixed in a torque-resistant manner.3. Rotary lobe pump according to claim 1 ,wherein die rotary lobe pump is gearless.4. Rotary lobe pump according to claim 2 ,wherein at least one rotary piston, in particular at least one of the shafts is mounted rotatably on at least one sliding bearing which is lubricated by means of the conveyed fluid medium, preferably that the first and the second shafts are mounted on sliding bearings lubricated by the conveyed fluid medium.5. Rotary lobe pump according to claim 1 ,wherein the mechanical synchronization of the rotational movement of the first and second rotary piston occurs through the intermeshing first and second rotary pistons.6. Rotary lobe pump according to claim 1 , ...

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Номер записи: 81
01-10-2015 дата публикации

ELECTRIC PUMP

Номер: US20150275894A1
Автор: IHARA Daiki, Tabata Shingo
Принадлежит:

An electric pump may include: a motor unit including an end cap attached to a motor cover, and a power supply bus bar integral with the end cap; a pump unit including a rotor having a vane groove for receiving a vane and connecting to the rotation shaft and a pump plate; and a cover covering the pump unit from a side opposite to the motor unit and provided with a connector box surrounding an insertion recessed portion into which the power supply bus bar is inserted. In the electric pump, the pump plate has a penetration hole through which the power supply bus bar can be inserted, wiring is inserted into the power supply bus bar inserted through the penetration hole, the wiring protrudes from a front end side of the penetration hole, and the wiring is electrically connected to a connection unit provided in the insertion recessed portion. 1. An electric pump , comprising:a motor unit including a rotation shaft, an end cap attached to an opening portion side of a motor cover, and a power supply bus bar integral with the end cap and extending toward a side away from a bottom of the motor cover;a pump unit including a rotor having a vane groove for receiving a vane and connecting to the rotation shaft, and a pump plate integrally provided with an external wall portion and a cam ring on which the vane slides; anda cover covering the pump unit from a side opposite to the motor unit and provided with a connector box surrounding an insertion recessed portion into which the power supply bus bar is inserted,the pump plate having a penetration hole through which the power supply bus bar can be inserted, wiring being inserted into the power supply bus bar inserted through the penetration hole, the wiring protruding from a front end side of the penetration hole, and the wiring being electrically connected to a connection unit provided in the insertion recessed portion.2. The electric pump according to claim 1 , whereinthe pump plate is provided with a bulged portion formed by ...

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Номер записи: 82
22-09-2016 дата публикации

OIL PUMP-DRIVING APPARATUS

Номер: US20160273533A1
Автор: YOKOTE Tatsuo, YOSHIDA Koji
Принадлежит: JATCO Ltd

An oil pump driving device drives an oil pump using at least one of rotation generated by an electric motor and rotation generated by an engine. The oil pump driving device includes: a first transmission unit to which the rotation generated by the electric motor is transmitted; a second transmission unit to which the rotation generated by the engine is transmitted; a third transmission unit configured to transmit rotation to the oil pump; and an engaging unit configured to cause the third transmission unit to engage with the first transmission unit, with the second transmission unit, or with the first and second transmission units. 1. An oil pump driving device for driving an oil pump using at least one of rotation generated by an electric motor and rotation generated by an engine , the oil pump driving device comprising:a first transmission unit, the rotation generated by the electric motor being transmitted to the first transmission unit;a second transmission unit, the rotation generated by the engine being transmitted to the second transmission unit;a third transmission unit configured to transmit rotation to the oil pump; andan engaging unit configured to cause the third transmission unit to engage with the first transmission unit, with the second transmission unit, or with the first and second transmission units, whereinwhen causing the third transmission unit to engage with one of the first and second transmission units, the engaging unit is configured to make the third transmission unit and the other of the first and second transmission units disengaged from each other.2. The oil pump driving device according to claim 1 , wherein the engaging unit is a synchromesh mechanism.3. The oil pump driving device according to claim 1 , whereinthe engaging unit is configured to perform joint switch so as to join the third transmission unit to the first transmission unit, the first and second transmission units, and the second transmission unit in a stated order, or ...

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Номер записи: 83
29-09-2016 дата публикации

Multiple Segment Lobe Pump

Номер: US20160281709A1
Автор: OConnor Brian J.
Принадлежит:

Designs for multiple segment lobe pumps are shown. The designs include pumps using rotors having two lobes to a plurality of lobes and segments that include two segments to a plurality of segments. Designs for both vertical, or straight walled conventional lobed rotors, as well as helical lobe rotors are shown. The designs are applicable to a variety of rotors and number of segments. In one particular case the designs enable a three lobe helical pump. Designs are also shown for separator plates used between the multiple segments. The separator float between the pairs of lobes in a segment and can also have a fixed position between the lobes by inclusion of end pieces that enable clamping of the separator plates in position. 1. A lobe pump comprising:a) a housing forming a pump chamber, said housing having ends, an inlet and an outlet and walls, the walls having a height, an inner surface and an outer surface, and,b) end covers that removable attach to each end of the housing and thereby seal the pump chamber,c) a first shaft and a second shaft, the shafts being elongated cylinders, the first shaft extending beyond a wall of the housing such that it is rotated by a motor, the shafts fixed within the housing such that their long axes are parallel, the shafts coupled through use of timing gears affixed to a first end of each shaft such that rotation of the first shaft by the motor causes the second shaft to rotate, i) a first lobe rotor having a center, a top surface, a bottom surface, sidewalls and a plurality of lobes symmetrically extending from the center, the lobes extended at a lobe separation angle from one another, the first lobe rotor fixedly attached to the first shaft through the center of the rotor such that rotation of the first shaft causes the first lobe rotor to rotate,', 'ii) a second lobe rotor having a center, a top surface, a bottom surface, sidewalls and a plurality of lobes symmetrically extending from the center, the lobes extended at a lobe ...

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Номер записи: 84
27-09-2018 дата публикации

ELECTRIC OIL PUMP APPARATUS AND BASE PLATE FOR ELECTRIC OIL PUMP

Номер: US20180274540A1
Автор: Higuchi Koji, KATAOKA Shigehiro, KOBAYASHI Yoshiyuki
Принадлежит:

An electric oil pump apparatus includes an electric oil pump including a housing main body that accommodates a motor and a pump driven by the motor, a flange portion formed on the housing main body, and a control circuit case for accommodating a control circuit, and a base plate attached to the electric oil pump. The base plate includes an annular main body fixed to the housing main body, and a sealing member located between the annular main body and the housing main body. The annular main body includes a first surface located on one side, a second surface located on the other side, a first through hole for passing the housing main body therethrough, and an annular stepped portion configured to accommodate the sealing member, and formed along an inner edge of the first through hole. The first surface of the base plate is opposed to the flange portion. 1. An electric oil pump apparatus comprising: a cylindrical housing main body that accommodates a motor having an output shaft that rotates about a central axis extending in an axial direction, and a pump driven by the motor;', 'a flange portion extending radially outward from an outer circumferential surface of the housing main body; and', 'a control circuit case provided on one side of the flange portion in the axial direction, and in which a control circuit that controls the motor is accommodated; and, 'an electric oil pump including an annular main body fixed to the outer circumferential surface of the housing main body; and', 'a sealing member located between the annular main body and the housing main body,, 'a base plate attached to the electric oil pump, and including a first surface located on one side in the axial direction;', 'a second surface located on the other side in the axial direction;', 'a first through hole through which the housing main body is passed; and', 'an annular stepped portion configured to accommodate the sealing member, and formed along an inner edge of the first through hole, and, ' ...

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Номер записи: 85
15-10-2015 дата публикации

ROTARY POSITIVE DISPLACEMENT PUMP AND METHOD OF REGULATING ITS DISPLACEMENT

Номер: US20150292502A1
Автор: Cortesi Matteo, Stagnoli Luca
Принадлежит: VHIT S.P.A.

A rotary positive displacement pump for fluids for the lubrication oil of a motor vehicle engine, has a displacement that can be regulated by the translation of a stator ring surrounding the rotor of the pump with an eccentricity depending on the position taken by the same ring due to the translation. The translation is guided by guiding fins sliding in contact with a surface of a guiding chamber, communicating with the delivery side of the pump, thanks to the fluid under pressure introduced into the same chamber and acting on the fins. The contact zone is such that a homogeneous contact pressure distribution is ensured as the operating conditions of the pump and, consequently, the position of the stator ring, vary. A method is disclosed of regulating the displacement of the pump and a lubrication system for a motor vehicle engine, in which system the pump is used. 111-. (canceled)12. A rotary positive displacement pump for fluids , comprising a rotor arranged to eccentrically rotate in a chamber defined within a stator ring , which is located in a seat formed in a pump body and is connected to means for translating such a ring relative to the rotor , as the operating conditions of the pump vary , in order to change the pump displacement , wherein the stator ring includes guiding means arranged to slide in a guiding chamber formed in the pump body and communicating with a pressure zone of the pump or with utilisation devices of a pumped fluid , in order to receive fluid under pressure therefrom , characterised in that the guiding means , during the translation of the stator ring , are arranged to be pushed by the fluid under pressure into sealing contact with a surface of the guiding chamber and , in a zone of contact with such a surface , they have a curvature with such a radius of curvature that a homogeneous contact pressure distribution is ensured as the operating conditions of the pump and , consequently , the position of the stator ring , vary.13. The pump as ...

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Номер записи: 86
23-12-2021 дата публикации

PUMP PARTICULARLY FOR PUMPING ABRASIVE AND/OR CHEMICALLY AGGRESSIVE LIQUIDS

Номер: US20210396227A1
Автор: Andries Diego, Copelli Stefano, GONELLA Carlo, Lucchesi Pierpaolo
Принадлежит:

A pump particularly for pumping abrasive and/or chemically aggressive liquids includes at least one rotating pumping member having a respective shaft, the at least one rotating pumping member being at least partially housed inside a pump body. The shaft is rotatably supported by at least one support associated with the pump body. 1. A pump for pumping abrasive and/or chemically aggressive liquids , the pump comprising: at least one rotating pumping member comprising a respective shaft , said at least one rotating pumping member being at least partially housed inside a pump body , said shaft being rotatably supported by at least one support associated with said pump body , wherein said shaft and said at least one support are both at least partially made of a material having a hardness greater than or equal to 5 Mohs , said material being located at least in the areas of said shaft and said at least one support in mutual contact.2. The pump according to claim 1 , wherein said shaft and said at least one support are completely made of said material having a hardness greater than or equal to 5 Mohs.3. The pump according to claim 2 , wherein said shaft and said at least one support are each made in a single piece of a single material having a hardness greater than or equal to 5 Mohs.4. The pump claim 1 , according to claim 1 , further comprising a pair of rotating pumping members claim 1 , each rotating pumping member comprising a shaft and a gear wheel associated with the respective shaft claim 1 , each shaft being rotatably supported by at least one support associated with said pump body claim 1 , said gear wheels of said pair of rotating pumping members being mutually meshed claim 1 , both said shafts claim 1 , both said gear wheels and each of said supports being at least partially made of said material having a hardness greater than or equal to 5 Mohs claim 1 , said material being located at least in the areas of said shafts and of said supports in mutual contact ...

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Номер записи: 87
12-10-2017 дата публикации

PUMP UNIT

Номер: US20170292516A1
Автор: Kacmar Marian, Kling Martin, Kunath Sando, Laforsch Oliver, Skrynski Evgenij
Принадлежит:

There are already known pump units comprising a drive shaft () and a rotatably arranged rotor () that is driven by the drive shaft (), wherein the drive shaft () has an inclined sliding surface () on an end side, which permits the rotor () to move back and forth by its rotor axis () about a drive axis () of the drive shaft (), wherein the drive shaft () has a first bearing section () facing towards the the rotor (), and a second bearing section () facing away from the rotor (). The first bearing section () of the drive shaft () is arranged in a first sliding bearing (), and the second bearing section () is arranged in a second sliding bearing (). The load-bearing capacity of the sliding bearing facing towards the rotor () is limited up to a predetermined working pressure in the pump unit. In the pump unit according to the invention, the load-bearing capacity of the sliding bearing () facing towards the rotor () is increased. According to the invention, the diameter of the first bearing section () of the drive shaft () and the first sliding bearing () is respectively larger than the diameter of the second bearing section () and the second sliding bearing (). 12322435612183193182201921182201921. A pump unit having a drive shaft () and a rotatably arranged rotor () which is driven by the drive shaft () , the drive shaft () having , on an end side , an oblique sliding face () which causes the rotor () with a rotor axis () to tumble during rotation of the drive shaft about a drive axis () of the drive shaft () , the drive shaft () having a first bearing section () which faces the rotor () and a second bearing section () which faces away from the rotor () , the first bearing section () of the drive shaft () being arranged in a first plain bearing () , and the second bearing section () being arranged in a second plain bearing () , characterized in that the diameter of the first bearing section () of the drive shaft () and of the first plain bearing () is in each case of ...

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Номер записи: 88
17-09-2020 дата публикации

Pressure Balancing System For A Fluid Pump

Номер: US20200291935A1
Автор: Erik Farrell, Kristjan Gottfried
Принадлежит: Exponential Technologies Inc

Several examples of a pressure balancing system for a pump. In one example, the pressure balancing system comprises: a housing; a first rotor within the housing having a first axis of rotation, a first shaft, a first face surface; a second rotor having an axis of rotation, a second face surface adjacent the first face surface of the first rotor; the face of the first rotor, the face of the second rotor, and an inner surface of the housing forming at least one working fluid chamber; an annular ring fitted around a shaft, adjacent a first pressure chamber having a fluid connection through the housing; the annular ring configured to bias the first rotor toward the second rotor when fluid is supplied under pressure to the first pressure chamber; a fluid conduit is configured to convey fluid to a pressure chamber between the housing and the annular ring to bias the annular ring against a radial extension of the first shaft thus biasing the first rotor toward the second rotor.

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Номер записи: 89
12-11-2015 дата публикации

OIL PUMP, ENGINE COVER AND ENGINE COMPRISING THE SAME

Номер: US20150322942A1
Автор: Li Haibin, Lin Jinchen, Liu Jing, Zheng Junli
Принадлежит:

An oil pump is provided. The oil pump comprises: a shell; a rotor mounting part on the shell and having a rotor supporting structure; and a rotor mechanism disposed on the rotor mounting part. The shell has an inlet and an outlet and defines a low-pressure oil chamber and a high-pressure oil chamber. A partition wall is disposed between the low-pressure oil chamber and the high-pressure oil chamber for separating the low-pressure oil chamber and the high-pressure oil chamber. An engine cover comprising the oil pump and an engine comprising the engine cover are also provided. 118-. (canceled)19. An oil pump , comprising:a shell having an inlet and an outlet and defining a low-pressure oil chamber and a high-pressure oil chamber therein, the low-pressure oil chamber having a low-pressure oil passage connected to the inlet, and the high-pressure oil chamber having a high-pressure oil passage connected to the outlet, a partition wall being disposed between the low-pressure oil chamber and the high-pressure oil chamber for separating the low-pressure oil chamber and the high-pressure oil chamber;a rotor mounting part on the shell and having a rotor supporting structure; anda rotor mechanism disposed on the rotor mounting part.20. The oil pump according to claim 19 , wherein the partition wall comprises:a main body portion adjacent to the outlet, andan extending portion extending from the main body portion to the rotor mounting part.21. The oil pump according to claim 20 , wherein a side of the extending portion facing to the high pressure oil chamber is inclined tilted.22. The oil pump according to claim 21 , wherein the shell comprises a main shell body and a cover jointed joined with the main shell body claim 21 ,wherein the partition wall comprises a first partition wall portion formed on the cover, and a second partition wall portion formed on the main shell body, and having a fluid-tight contact with the first partition wall portion.23. The oil pump according to ...

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Номер записи: 90
03-10-2019 дата публикации

INTEGRATED MOTOR AND PUMP INCLUDING INLET AND OUTLET FLUID CONTROL SECTIONS

Номер: US20190301453A1
Автор: HEMPHILL Jeffrey, Philip George
Принадлежит:

A pump includes a fluid inlet section; a fluid outlet section; a stator axially between the fluid inlet section and the fluid outlet section; a rotor axially between the fluid inlet section and the fluid outlet section, the rotor and the stator defining a fluid flow chamber radially therebetween, the rotor being rotatable inside of the stator by electromagnetic forces urging the rotor towards the stator; an inlet control section configured for regulating fluid flow from the fluid inlet section into the fluid flow chamber; and an outlet control section configured for regulating fluid flow from the fluid flow chamber into the fluid outlet section. The rotor, the stator, the inlet control section and the outlet control section are arranged and configured such that rotation of the rotor in the stator generates in the fluid flow chamber a first pressure portion and a second pressure portion that rotate about a center axis of the rotor. The first pressure portion has a lower pressure than the second pressure portion. The inlet control section is configured such that fluid from the fluid inlet section is forced through the inlet control section to the first pressure portion as the first pressure portion rotates about the center axis of the rotor. The outlet control section is configured such that fluid from the fluid flow chamber is forced through the outlet control section from the second pressure portion to the fluid outlet section as the second pressure portion rotates about the center axis of the rotor. 1. A pump comprising:a fluid inlet section;a fluid outlet section;a stator axially between the fluid inlet section and the fluid outlet section;a rotor axially between the fluid inlet section and the fluid outlet section, the rotor and the stator defining a fluid flow chamber radially therebetween, the rotor being rotatable inside of the stator by electromagnetic forces urging the rotor towards the stator;an inlet control section configured for regulating fluid flow ...

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Номер записи: 91
03-10-2019 дата публикации

INTEGRATED MOTOR AND PUMP INCLUDING RADIALLY MOVABLE OUTER GERATOR

Номер: US20190301456A1
Автор: Bitar Justin, HEMPHILL Jeffrey
Принадлежит:

A pump includes a fluid inlet section, a fluid outlet section, a rotor axially between the fluid inlet section and the fluid outlet section, a stator surrounding the rotor and a center section radially inside of the rotor on a center axis of the pump. The rotor and the center section define a fluid flow chamber radially therebetween. The rotor is rotatable inside of the stator about the center section by electromagnetic forces urging the rotor towards the stator. The pump also includes an inlet control section configured for regulating fluid flow from the fluid inlet section into the fluid flow chamber and an outlet control section configured for regulating fluid flow from the fluid flow chamber into the fluid outlet section. 1. A pump comprising:a fluid inlet section;a fluid outlet section;a rotor axially between the fluid inlet section and the fluid outlet section;a stator surrounding the rotor;a center section radially inside of the rotor on a center axis of the pump, the rotor and the center section defining a fluid flow chamber radially therebetween, the rotor being rotatable inside of the stator about the center section by electromagnetic forces urging the rotor towards the stator;an inlet control section configured for regulating fluid flow from the fluid inlet section into the fluid flow chamber during rotation of the rotor inside of the stator about the center section; andan outlet control section configured for regulating fluid flow from the fluid flow chamber into the fluid outlet section during rotation of the rotor inside of the stator about the center section.2. The pump as recited in wherein the rotor claim 1 , the stator claim 1 , the inlet control section and the outlet control section are arranged and configured such that rotation of the rotor in the stator generates in the fluid flow chamber a suction portion and a pressure portion that rotate about the center axis as the rotor is rotated by the electromagnetic forces claim 1 , the inlet control ...

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Номер записи: 92
09-11-2017 дата публикации

COMPRESSOR HAVING NON-CONTACT AND CONTACT SEALS

Номер: US20170321697A1
Автор: Beinert Michael, Hauser Jan, Herlemann Sven, Schulze-Beckinghausen Philipp
Принадлежит:

A compression system is disclosed having a compressor and a seal package including a non-contact seal and one or more radial shaft seals. In one form the non-contact seal is placed in proximity to a high pressure portion of the compressor. The offset of the non-contact seal from a shaft used to drive the compressor allows some amount of pressure reduced leakage air to pass. A radial shaft seal is coupled to the shaft axial aft of the non-contact seal on the other side of the compressor and oriented to discourage further passage of the leakage air past the radial shaft seal. A vent conveys leakage air to return to the compressor. A backup radial shaft seal can be used axially aft of the first radial shaft seal. A further radial shaft seal is disposed adjacent to the backup seal and oriented in the other direction to seal lubricant for a bearing. 1. An apparatus comprising:a rotatable shaft coupled to a fluid moving component which is structured to produce a change in pressure in the fluid;a non-contact seal disposed about the rotatable shaft and structured to discourage movement of the fluid therethrough, the non-contact seal having an upstream axial side corresponding to a side on which the fluid moving component is disposed and a downstream axial side corresponding to the side opposite the fluid moving component side, the non-contact seal producing a pressure drop in the fluid when the fluid flows through an annular space formed between the non-contact seal and the shaft;a primary lip seal disposed about the rotatable shaft and axially offset from the non-contact seal on the downstream axial side, the primary lip seal having a protruding lip extension that is turned to point to the downstream axial side of the non-contact seal;a vent structured to receive fluid located between and in contact with the non-contact seal and the primary lip seal after the fluid having traversed the annular space, the vent configured to return the fluid to the fluid moving component; ...

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Номер записи: 93
26-11-2015 дата публикации

HYDRAULIC CIRCUIT SYSTEM FOR FORCED REGENERATION OF DIESEL PARTICULATE FILTER

Номер: US20150337705A1
Автор: LEE Sung Hoon, SEOK Myoung Jin
Принадлежит:

The present disclosure relates to a hydraulic circuit system for forced regeneration of a diesel particulate filter, and more particularly, to a hydraulic circuit system for forced regeneration of a diesel particulate filter (DPF), which prevents a working machine from being operated when the diesel particulate filter is forcedly regenerated by combusting particulate matters (PM) in a case in which the diesel particulate filter is installed in a construction machine with a diesel engine and particulate matters contained in exhaust gas are collected in the diesel particulate filter. 1. A hydraulic circuit system for forced regeneration of a diesel particulate filter , the hydraulic circuit system comprising:an engine which generates power;a diesel particulate filter which purifies exhaust gas from the engine;a hydraulic pump which discharges hydraulic oil using the power;a main control valve which is controlled to provide the hydraulic oil to an actuator of a working machine;a regulator which adjusts an angle of a swash plate of the hydraulic pump depending on intensity of discharge pressure of the hydraulic oil from the hydraulic pump and controls a discharge flow rate of the hydraulic oil; anda forced regeneration valve which blocks the discharge pressure of the hydraulic oil from being provided to the regulator and is operated so that the discharge flow rate of the hydraulic oil from the hydraulic pump becomes the maximum, when the diesel particulate filter is in a forced regeneration mode.2. The hydraulic circuit system of claim 1 , further comprising:a drain tank which stores the hydraulic oil,wherein the forced regeneration valve blocks the discharge pressure of the hydraulic oil from being provided to the regulator and is operated to connect the drain tank and the regulator, when the diesel particulate filter is in the forced regeneration mode.3. The hydraulic circuit system of claim 1 , further comprising:a gear pump which discharges pilot hydraulic oil, ...

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Номер записи: 94
16-11-2017 дата публикации

Adjustable Vane Pump

Номер: US20170328364A1
Автор: Blank Andreas, Buehler Ralph, Gulde Thomas, Helle Torsten, Walter Michael
Принадлежит: JOMA-POLYTEC GMBH

An adjustable vane pump, in particular an oil pressure pump, with a suction side and a pressure side, with a housing and with a rotor, which is supported in the housing so as to be rotatable about a rotor axis and carries at least one vane supported movably in a radial direction, wherein the housing comprises a housing floor and a housing cover transversely to the rotor axis, and wherein an adjustment cage that is arranged between the housing floor and the housing cover, encloses the rotor and the vane and is adjustable transversely to the rotor axis is provided in the housing, wherein the housing and the adjustment cage delimit a pressure chamber fluidically connected to the pressure side, wherein a restoring element is provided, which pushes the adjustment cage into a base end position, and wherein the adjustment cage is deflected from the base end position when a limit operating variable is exceeded in the pressure chamber. 1. An adjustable vane pump , in particular oil pressure pump , with a suction side and a pressure side , with a housing and with a rotor , which is supported in the housing so as to be rotatable about a rotor axis and carries at least one vane supported movably in a radial direction , wherein the housing comprises a housing floor and a housing cover transversely to the rotor axis , and wherein an adjustment cage that is arranged between the housing floor and the housing cover , encloses the rotor and the vane and is adjustable transversely to the rotor axis is provided in the housing , characterized in that the housing and the adjustment cage delimit a pressure chamber connected fluidically to the pressure side , wherein a restoring element is provided , which pushes the adjustment cage into a base end position , and wherein the adjustment cage is deflected from the base end position if a limit operating variable is exceeded in the pressure chamber.2. The vane pump according to claim 1 , characterized in that the rotor is driven by an electric ...

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Номер записи: 95
24-10-2019 дата публикации

ELECTRIC GEAR PUMP

Номер: US20190323500A1
Автор: Medoro Nello
Принадлежит:

An electric gear pump comprising a gerotor that may rotate about an axis of rotation A, comprising an external spur rotor and an internal spur rotor arranged outside the external spur rotor; a stator having electrical windings arranged outside the internal spur rotor; at least one magnet at least partially housed in the internal spur rotor in such a way as to cause the gerotor to rotate when the electrical windings of the stator are supplied with current; in which the internal spur rotor comprises a cylindrical external surface centred on the axis of rotation A; the magnet comprises an external surface separated from the external surface of the internal spur rotor; the external surface of the magnet is shaped in such a way as to define a constant radial distance d between the magnet and the corresponding portion of the external surface of the internal spur rotor. 14. An electric gear pump () comprising:{'b': 9', '21', '22', '21, 'a gerotor () configured to rotate about an axis of rotation (A), the gerotor comprising an external spur rotor () and an internal spur rotor () arranged outside the external spur rotor ();'}{'b': 25', '26', '22, 'a stator () having electrical windings () arranged outside the internal spur rotor ();'}{'b': 23', '22', '9', '26', '25, 'at least one magnet () at least partially housed in the internal spur rotor () in such a way as to cause the gerotor () to rotate when the electrical windings () of the stator () are supplied with current;'}wherein:{'b': 22', '29, 'the internal spur rotor () comprises a cylindrical external surface () centered on the axis of rotation (A);'}{'b': 23', '30', '22, 'the magnet () comprises an external surface () separated from the external surface of the internal spur rotor (); and'}{'b': 30', '23', '23', '29', '22, 'the external surface () of the magnet () is shaped in such a way as to define a constant radial distance (d) between the magnet () and the corresponding portion of the external surface () of the ...

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Номер записи: 96
24-10-2019 дата публикации

STEPPING MOTOR DRIVE APPARATUS, GEAR PUMP, AND STEPPING MOTOR-DRIVEN GEAR PUMP SYSTEM

Номер: US20190323501A1
Автор: Chu Mosi
Принадлежит:

A stepping motor-driven system includes a stepping motor, an output device, and a belt and pulley system operably coupling the stepping motor with the output device to impart rotation therebetween. The belt and pulley system includes an input pinion engaged with the stepping motor, an output pinion engaged with the output device, and a timing belt. The timing belt is disposed about the input and output pinions, inhibits elongation, and defines a plurality of spaced-apart grooves on an inwardly-facing surface thereof that are wider than the teeth of the pinions and are configured to receive the teeth of the pinions in meshed engagement therewith. As a result, a gap is defined within each groove. The gaps permit backlash of the timing belt in response to changes in a rotational speed input to the belt and pulley system from the stepping motor, thereby inhibiting loss of control. 1. A gear pump system , comprising: a drive shaft defining a first end portion and a second end portion, wherein the first end portion of the drive shaft is configured to receive the rotational input to rotate the drive shaft;', 'an enclosure defining a chamber and including a fluid input and a fluid output, wherein the second end portion of the drive shaft extends through the enclosure into the chamber;', 'a drive gear engaged about the second end portion of the drive shaft within the chamber;', 'a passive shaft rotatably mounted within the chamber; and', 'a passive gear engaged about the passive shaft within the chamber and disposed in meshed engagement with the drive gear, wherein rotation of the drive gear rotates the passive gear to urge fluid from the fluid input towards the fluid output,', 'wherein the second end portion of drive shaft is rotatably and sealingly engaged with the enclosure at first and second locations via first and second ball bearing assemblies., 'a gear pump configured to receive a rotational input, the gear pump including2. The gear pump system according to claim 1 , ...

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Номер записи: 97
01-12-2016 дата публикации

Automotive fuel pump

Номер: US20160348626A1
Автор: Zeller Ken
Принадлежит:

An automotive fuel pump is disclosed. There is a pump head that can operate in a passive mode and, when an electric motor powers spur gears, an active mode. The pump head can direct fuel to an air separator, then to a water trap, then to an air separator. After which the fuel is sent to the engine and any separated air and excess fuel is returned to the fuel tank. 1. An automotive fuel pump for use with fuel under pressure comprising;a pump head comprising a fuel inlet port in connection with an end of a first fuel path, and an opposing end of the first fuel path in connection with a first outlet port, a cavity for receiving spur gears and the cavity in connection with the inlet port and with the first end of the first fuel path and with a second fuel path, and the second fuel path in connection with a second output port;spur gears disposed within the cavity and the spur gears having an inoperable state where fuel is primarily directed down the first fuel path, and the spur gears having an operable state to primarily direct the flow of fuel into the second fuel path; anda bypass valve disposed between the first fuel path opposing end and the fuel output port and the bypass valve operable in an open state when fuel pressure is applied to the front of the bypass valve in the case of the spur gears in an inoperable state, and the bypass valve having a closed state when fuel pressure is substantially reduced in the case of the spur gears being in an operable state;wherein, when fuel pressure is supplied to the inlet port and the spur gears are not operating, the fuel travels down the first fuel path thereby forcing the bypass valve open, allowing fuel to flow to the first outlet port, and when the spur gears are operating, the spur gears push fuel through the cavity to the second outlet port and in so doing the fuel pressure force on the bypass valve is reduced and the bypass valve is in a closed state to substantially prevent fuel from flowing down the first outlet ...

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Номер записи: 98
10-12-2015 дата публикации

PUMP DEVICE

Номер: US20150354563A1
Автор: Takahashi Jun
Принадлежит:

A pump device, a main body, a cover body, a stator module at least a portion of the external of the stator module being covered with an insulation member, a securing part to secure the pump main body to the cover body, a load applying means provided between the securing part and the cover body so as to apply a load to the securing part and the cover body, a connector terminal electrically coupled to an external-connected terminal which is externally grounded, and a conductive-elastic member electrically coupled to the connector terminal and configured to make contact with the cover body as applying a load to the cover body. A discharge path is formed through the pump main body, the securing part, the load applying means, the cover body, the conductive-elastic member, and the connector terminal to discharge static electricity to the external via the external-connected terminal. 1. A pump device configured to suction and eject fluid by a cyclic-motion part driven by an electric motor to perform a cyclic motion , the pump device comprising:a pump main body containing the cyclic-motion part, at least a portion of the pump main body being formed of a conductive material;a cover body at least a portion of which is formed of a conductive material;a stator module including a stator constituting the electric motor, at least a portion of an external of the stator module being covered with an insulation member having electric-insulating property to electrically insulate the pump main body from the cover body;a securing part inserted through the stator to secure the pump main body to the cover body, at least a portion of the securing part being formed of a conductive material;a load applying means provided between the securing part and the cover body so as to apply a load to the securing part and the cover body, at least a portion of the load applying means being formed of a conductive material;a connector terminal electrically coupled to an external-connected terminal which is ...

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Номер записи: 99
10-12-2015 дата публикации

HERMETIC COMPRESSOR AND VAPOR COMPRESSION-TYPE REFRIGERATION CYCLE DEVICE INCLUDING THE HERMETIC COMPRESSOR

Номер: US20150354572A1
Автор: Kato Taro, Koda Toshihide, MOROE Shogo, Nishiki Teruhiko, Sekiya Shin, Shingu Keisuke, Yokoyama Tetsuhide
Принадлежит: Mitsubishi Electric Corporation

A hermetic compressor, includes a hermetic container having a bottom portion in which lubricating oil is stored; an electric motor including a stator and a rotator; a drive shaft attached to the rotator; a compression mechanism for compressing refrigerant by using rotation of the drive shaft; a rotary pressure increasing mechanism for increasing a pressure of refrigerant gas, the rotary pressure increasing mechanism being arranged on the rotator; a cylindrical lateral wall for partitioning a space above the electric motor into an outer space and an inner space in a manner that the a cylindrical lateral wall surrounds the rotary pressure increasing mechanism; and a discharge pipe for allowing the refrigerant to flow out from the inner space into an external circuit that is external to the hermetic container. 1. A hermetic compressor , comprising:a hermetic container having a bottom portion for storing lubricating oil; a stator; and', 'a rotator through which rotator vents are formed in a vertical direction;, 'an electric motor arranged in the hermetic container, the electric motor includinga drive shaft attached to the rotator;a compression mechanism arranged in the hermetic container, for compressing refrigerant by using rotation of the drive shaft,a rotary pressure increasing mechanism arranged on an upper portion of the rotator, for increasing a pressure of refrigerant gas by allowing the refrigerant gas to flow through the rotary pressure increasing mechanism while rotating about the drive shaft,a cylindrical lateral wall for partitioning a space above the electric motor into an outer space on the stator side and inner space on the rotator side in such a manner that the cylindrical lateral wall surrounds the rotary pressure increasing mechanism positioned in the inner space; anda discharge pipe communicated to the inner space, for allowing the refrigerant to flow out from the inner space into an external circuit that is external to the hermetic container,wherein ...

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Номер записи: 100