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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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Применить Всего найдено 6572. Отображено 100.

09-02-2012 дата публикации

Control of the vanes of a vane cell machine

Номер: US20120031370A1

Автор: Eggert Guenther

Принадлежит: EN3 GmbH

The invention relates to the control of the vanes of vane machines by means of a disk-shaped control link arranged inside a divided rotor, which control link is connected to the housing of the machine by means of a central axle in alignment with the rotor shaft and takes on the guidance of the vanes when the rotor rotates relative to the housing track.

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Номер записи: 1

01-03-2012 дата публикации

Compressor with liquid injection cooling

Номер: US20120051958A1

Автор: Andrew Nelson, Harrison O'hanley, Jeremy Pitts, Johannes Santen, John Walton, Mitchell Westwood, Pedro Santos

Принадлежит: Individual

A positive displacement compressor designed for near isothermal compression. A rotor includes a curved sealing portion that coincides with a in an interior rotor casing wall. Liquid injectors provide cooling liquid. A gate moves within the compression chamber to either make contact with or be proximate to the rotor as it turns. Gate positioning systems position the gate in this manner, taking into account the shape of the rotor. Outlet valves allow for expulsion of liquids and compressed gas. The unique geometry and relationship between the parts provides for efficiencies and higher pressures not previously found in existing compressor designs.

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Номер записи: 2

19-04-2012 дата публикации

Exhaust heat regeneration system

Номер: US20120090317A1

Автор: Kazuhiko Kawajiri, Kazunori Tsuchino, Minoru Sato

Принадлежит: Mitsubishi Electric Corp

An exhaust heat regeneration system includes: an evaporator for cooling engine cooling water; an expansion device for expanding the refrigerant heated through the evaporator so as to generate a driving force; a condenser for cooling the refrigerant passing through the expansion device to condense the refrigerant; and a pump for pressure-feeding the refrigerant cooled through the condenser to the evaporator, in which: the expansion device is coupled to the pump by a shaft, and the expansion device and the pump are housed within the same casing to constitute a pump-integrated type expansion device; and the pump includes a high-pressure chamber through which the refrigerant to be discharged to the evaporator flows, the high-pressure chamber being provided on the expansion device side, or a low-pressure chamber through which the refrigerant flowing from the condenser flows, the low-pressure chamber being provided on the expansion device side.

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Номер записи: 3

16-08-2012 дата публикации

Rotary compressor having gate axially movable with respect to rotor

Номер: US20120207639A1

Автор: Gregory T. Kemp

Принадлежит: Individual

A rotary compressor having a housing and a rotor positioned within an internal cavity of the housing. The rotor being configured to rotate about a rotor axis of rotation eccentric to a housing longitudinal axis. A gate is also provided that is slidably mounted therewith the rotor and movable axially about and between a first position, in which a distal end of the gate is positioned at a first distance from the peripheral surface of the rotor, and a second position, in which the distal end of the gate is positioned at a second distance from the peripheral surface of the rotor. The distal end of the gate being constrained to be spaced proximate from the inner wall surface of the housing as the rotor rotates about the rotor axis of rotation.

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Номер записи: 4

01-11-2012 дата публикации

Scroll compressor

Номер: US20120275946A1

Автор: Cheolhwan Kim, Sanghun Seong, Sungyong Ahn

Принадлежит: LG ELECTRONICS INC

A scroll compressor is provided that may include a fixed scroll having a fixed wrap, an orbiting scroll engaged with the fixed wrap to define a compression chamber, a rotation shaft having a shaft portion eccentrically located with respect to the orbiting scroll, a pin portion located at an end of the shaft portion and having a diameter smaller than a diameter of the shaft portion, and a bearing located at an end of the pin portion, and a drive that drives the rotation shaft. The pin portion may be inserted through one of the fixed scroll or the orbiting scroll, and the orbiting scroll may be rotatably coupled to the bearing.

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Номер записи: 5

13-12-2012 дата публикации

Scroll-Type Fluid Machine

Номер: US20120315174A1

Автор: Kiminori Iwano, Natsuki Kawabata, Shumpei Yamazaki, Toshikazu Harashima, Yoshio Kobayashi

Принадлежит: Hitachi Industrial Equipment Systems Co Ltd

A scroll-type fluid machine reduces intrusion of abrasion powders, generated by sliding of a conductor causing an orbiting scroll side and a fixed scroll side to be conducted, into a compression chamber, and improves reliability of a compressor. The scroll-type machine includes a casing, a fixed scroll having a flange surface attached to the casing, and a wrap portion provided at an end plate, an orbiting scroll having a wrap portion provided at the end plate, and provided in an opposed relationship with the fixed scroll, a drive shaft connected through a crank portion to the orbiting scroll, an orbiting bearing, a face seal portion arranged between the orbiting scroll and the fixed scroll, a cooling fan, and an orbiting scroll side conductive brush.

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Номер записи: 6

31-01-2013 дата публикации

Variable Displacement Pump

Номер: US20130028770A1

Автор: Dai Niwata, Koji Saga

Принадлежит: HITACHI AUTOMOTIVE SYSTEMS LTD

A variable displacement pump includes: side walls provided on both sides of the cam ring in an axial direction; and an introduction passage which is formed on one of the separation walls across which the hydraulic chambers pass when the hydraulic chambers are moved from the suction portion to the discharge portion, which is arranged to shut off a connection between one of the hydraulic chambers and the control hydraulic chamber by an axial end surface of the cam ring when the cam ring is in a maximum eccentric state, and which is arranged to connect the one of the hydraulic chambers and the control hydraulic chamber by a movement of the cam ring in the direction to decrease the eccentric amount of the cam ring, and thereby to introduce the discharge pressure within the control hydraulic chamber to the one of the hydraulic chambers.

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Номер записи: 7

07-02-2013 дата публикации

Fluid Energy Transfer Device

Номер: US20130034462A1

Автор: George A. Yarr

Принадлежит: ENER-G-ROTORS Inc

A rotary chambered fluid energy-transfer device includes a housing with a central portion having a bore formed therein and an end plate forming an arcuate inlet passage, with a radial height and a circumferential extent. The device also includes an outer rotor rotatable in the central portion bore with a female gear profile formed in a radial portion defining a plurality of roots and an inner rotor with a male gear profile defining a plurality of lobes in operative engagement with the outer rotor. A minimum radial distance between an outer rotor root and a corresponding inner rotor lobe define a duct end face proximate the end plate, wherein the duct end face has a radial height substantially equivalent to the inlet passage radial height at a leading edge of the inlet passage.

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Номер записи: 8

14-02-2013 дата публикации

Rotary type stirling engine for green growth

Номер: US20130036732A1

Автор: Gook Sun Shin

Принадлежит: Individual

The present invention relates to a Stirling engine in which power is generated using a variation in pressure generated by continuously performing periodical heating and cooling operations when a heat transfer medium is stored in a sealed inner space. The Stirling engine generates power for rotating an output shaft ( 12 ) through the expansion and contraction of the heat transfer medium sealed and received in a space partitioned by a baffle ( 40 ) within an inner space ( 21 ) of a housing ( 20 ). Thus, when compared to the prior art, the Stirling engine of the present invention may be more easily manufactured. Also, the heat transfer medium for generating power may be easily managed, maintained, and repaired. In addition, since the heat circulation structure is simple, the Stirling engine of the present invention can achieve relatively higher thermal efficiency than those of the prior art.

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Номер записи: 9

14-02-2013 дата публикации

Shaft rotating double-stator multi-speed motor with curves of constant width

Номер: US20130039795A1

Автор: Desheng Wen

Принадлежит: Yan Univ

The present invention discloses a shaft rotating constant-width curve double-stator multi-speed motor, comprising a rotor ( 5 ), an inner stator ( 19 ), an outer stator ( 3 ), sets of sliders ( 22 ) mounted on the rotor, a left end cover ( 6 ) and a right end cover ( 1 ), a curve of an external surface of a front portion of the inner stator ( 19 ) and a curve of an internal surface of the outer stator ( 3 ) are two similar curves which are smooth and closed, wherein oil distributing ports in outer stator ( 20 ) are opened on the outer stator ( 3 ) in the number of 2×n (n is the number of actions), oil distributing ports in inner stator ( 24 ) are opened on the external surface of the front portion of the inner stator ( 19 ), and the inner stator ( 19 ) is mounted in the rotor ( 5 ). The multi-speed motor of the present invention works stably and has a small volume, a light weight, a high efficiency and a large specific power. According to the present invention, a plurality of hydraulic motors of different inputs set in one shell, so as to output different speeds and torques when the motors have different inputs or outputs.

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Номер записи: 10

28-02-2013 дата публикации

Electric pump unit

Номер: US20130052058A1

Автор: Nobutsuna Motohashi, Takafumi Uemoto

Принадлежит: JTEKT Corp

A pump body is formed of a pump housing and a pump plate provided in front of the pump housing. A motor housing is fixed to a rear end of the pump housing, and accommodates a pump driving electric motor. A bearing device that supports a motor shaft includes a first bearing that is arranged in a closed-end hole formed in a rear face of the pump plate and supporting a front end portion of the motor shaft, and a second bearing that is arranged radially inward of a cylindrical bearing support portion formed in the pump housing and extending inside the motor housing and that supports a middle portion of the motor shaft. A pump rotor is arranged between the first bearing and the second bearing.

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Номер записи: 11

28-02-2013 дата публикации

Oscillating slide machine

Номер: US20130052070A1

Автор: André Mäder, Bernd Morthorst, Christian Richter, Jens Struckmann, Mark Tepler, Wolfgang Vöge

Принадлежит: MAHLE International GmbH

A controllable hydraulic oscillating slide machine includes an inner rotor arranged in a housing and having cylindrical recesses. A bearing is formed in the housing, in which a co-rotating outer rotor is mounted eccentrically to the inner rotor, the outer rotor having several pivotably suspended slide drivers that engage into the recesses of the inner rotor for rotationally driving the outer rotor by way of the inner rotor and form modifiable chambers. The slide drivers may each be coupled to a piston that is guided in a respective associated recess. A pressure level different from that in the chambers between the inner and the outer rotor may be set in the chambers delimited by the recesses and the associated pistons so that two different pressure levels may be generated and two different consumers can be supplied using the oscillating slide machine.

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Номер записи: 12

28-02-2013 дата публикации

Vane pump

Номер: US20130052071A1

Автор: Hiroyuki ISHIHAMA, Naoya TAGA, Toshio Nishikawa

Принадлежит: Showa Corp

A back pressure groove which is formed in a plate coming into contact with a side surface of a rotor and is communicated with a high pressure chamber is formed in such a manner as to copy an annular locus drawn by a base end of a vane which slides within a vane groove while coming into slidable contact with a cam surface of a cam ring, at a time when the rotor rotates one time.

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Номер записи: 13

07-03-2013 дата публикации

Symmetrical vane pump apparatus and method

Номер: US20130058808A1

Автор: Alexander RÜTHER, Theodor Hüser, Udo Schubert

Принадлежит: Hella KGaA Huek and Co

The invention relates to a vane cell pump ( 1 ) comprising an electrical drive unit with an electric motor and a motor shaft ( 6 ), a pump chamber ( 2 ) that connects to the electrical drive unit and has a pump ring ( 3 ), and also a rotor ( 4 ) that is arranged concentric to the motor shaft ( 6 ) within the pump chamber ( 2 ) and is in active connection with the motor shaft ( 6 ), wherein the rotor ( 4 ) has a number of guide slots ( 40 ) that extend inward from the outer circumference of the rotor and in each of which a vane ( 5 ) is arranged in a moveable manner with two vane ends ( 50, 51 ) opposite each other. The vane ends ( 50, 51 ) of each vane ( 5 ) have a mirror-symmetric design relative to the transverse center plane of the vane.

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Номер записи: 14

18-04-2013 дата публикации

HYDRAULIC TRANSMISSION DEVICE ALLOWING RELATIVELY QUIET COUPLING

Номер: US20130094986A1

Автор: LAMBEY Julien, PRIGENT André

Принадлежит:

A hydraulic transmission apparatus having at least one declutchable hydraulic motor having radial pistons and connected via two motor ducts, and a casing duct connected to the inside of the casing. The apparatus further has clutching means that, in order to perform the clutching of the motor, are suitable for bringing a first one of the motor ducts to a “clutching” first pressure that is higher than the pressure in the casing while also making it possible to remove fluid via the casing duct. Disposed on the casing duct, the apparatus further has means for limiting the flow of fluid in said casing duct, in a manner such as to cause the pressure inside the casing to increase during the clutching operation. This apparatus enables clutching to take place gently. 1. Hydraulic transmission apparatus comprising at least one hydraulic motor having radial pistons , said motor comprising:a casing;inside the casing, a cylinder block that comprises a plurality of cylinders each cylinder containing a slidably mounted piston and being disposed radially relative to an axis of rotation of the motor; andan undulating cam for the pistons;the apparatus further comprising:two motor ducts respectively for the fluid feed and for the fluid discharge of the motor, said motor ducts being suitable for being put into communication with said cylinders; anda casing duct connected to an internal space provided inside the casing and in which a “casing pressure” prevails;the motor being suitable for being clutched, in which state the pistons slide in the cylinders while being held in contact with the cam, and the motor is suitable for generating outlet torque under the effect of a difference in pressure between the motor ducts, and for being declutched, in which state the pistons are held in retracted position inside the cylinders;the apparatus comprising clutching means that, in order to performing the clutching of the motor, are suitable for bringing a first one of the motor ducts to a “ ...

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Номер записи: 15

25-04-2013 дата публикации

Rotary machine and pump driving apparatus

Номер: US20130101448A1

Автор: Daishi Kato, Kunihito Ando, Takahiro Naganuma, Tomoaki Kawabata, Yuki Nakamura

Принадлежит: Advics Co Ltd, Denso Corp

A rotary machine includes a rotary shaft having two driving reactive force receiving parts that are displaced in an axial direction and are applied with diametrical reactive forces having different rotation phases from driving targets as normal loads; and bearings that rotatably support the rotary shaft wherein the rotary shaft is rotated at a state where the rotary shaft is supported by the bearings to drive the driving targets via the driving reactive force receiving parts, wherein the bearings are respectively provided at both axial sides of one of the two driving reactive force receiving parts, which receives a higher normal load, and wherein a leading end side of the rotary shaft more than the other of the two driving reactive force receiving part, which receive a lower normal load lower than the higher normal load, is configured as a free end.

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Номер записи: 16

16-05-2013 дата публикации

ALLOY CAST IRON AND MANUFACTURING METHOD OF VANE USING THE SAME

Номер: US20130118651A1

Автор: PARK Jaebong

Принадлежит: LG ELECTRONICS INC.

An alloy cast iron, a method of manufacturing a vane for a rotary compressor, and a vane for a rotary compressor using the alloy cast iron are disclosed. The alloy cast iron according to one exemplary embodiment includes, by weight, 3.2 to 3.8% carbon, 2.0 to 2.6% silicon, 0.5 to 1.0% Manganese, 0.2 to 0.6% chrome, 0.1 to 0.6% molybdenum, 0.04 to 0.15% titanium, less than 0.3% phosphorus, less than 0.1% sulphur, and the rest percentage of iron and foreign materials, wherein the alloy cast iron includes a martensitic matrix structure, flake graphite, and 15 to 30% carbide in volume ratio. 1. An alloy cast iron comprising , by weight:3.2 to 3.8% carbon (C);2.0 to 2.6% silicon (Si);0.5 to 1.0% manganese (Mn);0.2 to 0.6% chrome (Cr);0.1 to 0.6% molybdenum (Mo);0.04 to 0.15% titanium(Ti);less than 0.3% phosphorus (P);less than 0.1% sulphur (S); anda remainder of iron (Fe) and foreign materials,wherein the alloy cast iron comprises a martensitic matrix structure, flake graphite, and 15 to 30% carbide in volume ratio.2. The alloy cast iron of claim 1 , further comprising an inoculant added in a molten state.3. The alloy cast iron of claim 2 , wherein the inoculant is added by 0.4 to 1.0% of the mass of the molten mass.4. The alloy cast iron of claim 1 , wherein the alloy cast iron is formed by cooling the molten metal in a cast to transform into the martensitic matrix structure through quenching and tempering.5. The alloy cast iron of claim 4 , wherein the quenching is carried out by keeping the alloy cast iron at a temperature of 860 to 950° C. for 0.5 to 1.5 hours and cooling the alloy cast iron to room temperature.6. The alloy cast iron of claim 4 , wherein the tempering is carried out by keeping the quenched alloy cast iron at a temperature of 180 to 220° C. for 0.5 to 1.5 hours claim 4 , and cooling the alloy cast iron to room temperature.7. The alloy cast iron of claim 4 , further comprising a sulfurized layer having a thickness of 0.005 to 0.0015 mm claim 4 , the ...

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Номер записи: 17

13-06-2013 дата публикации

Scroll fluid machine

Номер: US20130149179A1

Автор: Junichi Asami, Toru Sato

Принадлежит: Anest Iwata Corp

A disc-like spacer arranged below a first roller bearing rotatably supporting a driven crankshaft that forms an anti-rotation system is formed with a plurality of notches in the circumferential direction. A spot face is provided to face the outer circumferential surface of the spacer, and communication holes and are drilled on the outer circumferential side of the spot face to extend in the axial direction of the scroll. Also formed is a communication hole communicating the communication hole with the first roller bearing via the notches. A grease nipple is mounted to the communication hole. To replenish grease, the fixed scroll is removed from the housing such that the orbiting scroll is exposed, and grease is injected from the grease nipple into the first roller bearing with a grease gun.

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Номер записи: 18

18-07-2013 дата публикации

STATOR OF A GEROTOR DEVICE AND A METHOD FOR MANUFACTURING ROLLER POCKETS IN A STATOR OF A GEROTOR DEVICE

Номер: US20130183182A1

Автор: JR. Hollis N., White

Принадлежит: WHITE DRIVE PRODUCTS, INC .

A method for manufacturing roller pockets in a stator of a gerotor device generally includes providing a stator having a cavity including a generally cylindrical section defining a central axis and a plurality of roller pockets angularly spaced around a periphery of the cylindrical section. Each roller pocket is configured to receive a respective roller, which acts as an internal tooth of the gerotor device. Each roller pocket defines a generally cylindrical roller pocket bearing surface. The method further includes grinding each roller pocket bearing surface of each roller pocket with a grinding wheel rotating about a rotational axis perpendicular to the central axis. A stator for a gerotor device is also described. 1. A stator for gerotor device comprising:a plurality of rollers;a stator body having a forward face, a rear face, a cavity including a generally cylindrical section defining a central axis and a plurality of roller pockets angularly spaced around a periphery of the cylindrical section,wherein each roller pocket receives a respective roller, which acts as an internal tooth of the stator,wherein each roller pocket includes a generally cylindrical roller pocket bearing surface, against which the respective roller received in the roller pocket bears,wherein each bearing surface extends along an arc that partially surrounds the respective roller received in the roller pocket,wherein the arc is greater than 185 degrees,wherein each bearing surface includes a first section following a first curve and a second section following a second curve, wherein each curve is substantially circular, wherein the first curve is a substantial mirror image of the second curve with respect to a center line through the respective roller pocket and the respective bearing surface deviates from each curve at or adjacent an area of the respective bearing surface intersected by the center line,wherein the first curve follows a first radius and the second curve follows a second ...

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Номер записи: 19

18-07-2013 дата публикации

ROTARY ENGINE

Номер: US20130183183A1

Автор: Pattakos Emmanouel, Pattakos Manousos, Pattakou Argyro

Принадлежит:

A “cat and mouse” rotary engine/pump comprising two inclined power shafts at the two ends of the rotor-pistons. Each power shaft connects to both rotor-pistons by concentric crosses. Either piston can be suspended from the bearings of the inclined shafts indirectly, through the inclined shafts and the crosses, avoiding any touching with the other piston and the casing. The arrangement improves the balance of the engine, rids the bearings of the rotor-pistons from heavy idle loads, allows lighter and more robust structure. The power is shared between the two counter-rotating shafts. The arrangement fits to divided load applications, like portable flyers, REM. 1. A rotary positive displacement machine comprising at least:{'b': '1', 'a casing ();'}{'b': 2', '1, 'a first rotor-piston () rotatably fitted in said casing ();'}{'b': 3', '1', '2', '3', '4, 'a second rotor-piston () rotatably fitted in said casing (), the first rotor-piston () and the second rotor-piston () having a common axis of rotation ();'}{'b': 5', '1', '5', '2', '3', '7', '5', '4, 'a first power shaft () rotatably mounted on said casing (), the first power shaft () is disposed at one end of the two rotor-pistons () and (), the rotation axis () of the first power shaft () is substantially inclined to the common rotation axis ();'}{'b': 6', '1', '6', '2', '3', '8', '6', '4', '7', '5', '8', '6', '4', '7', '4', '8', '4, 'a second power shaft () rotatably mounted on said casing (), the second power shaft () is disposed at the other end of the two rotor-pistons () and (), the rotation axis () of the second power shaft () is substantially inclined to the common rotation axis (), the rotation axis () of the first power shaft (), the rotation axis () of the second power shaft () and the common axis of rotation () are coplanar, the inclination of the rotation axis () relative to the common rotation axis () is substantially equal to the inclination of the rotation axis () relative to the common rotation axis ...

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Номер записи: 20

18-07-2013 дата публикации

SCREW ROTOR FOR A SCREW TYPE VACUUM PUMP

Номер: US20130183185A1

Автор: Dirscherl Jürgen, Gitmans Frank, Prasse Markus, Rüster Gerhard

Принадлежит: VACUUBRAND GMBH + CO KG

A screw rotor is for a screw type vacuum pump, preferably for a screw type vacuum pump having a pumping capacity less than 50 m/h. The rotor has a rotor shaft, a rotor core which rests on the rotor shaft, and a rotor cover which rests on the rotor core and at least partially encloses the rotor core. The rotor core is made of a material having a thermal conductivity greater than 100 W/m·K, preferably a thermal conductivity greater than 200 W/m·K. A screw type vacuum pump has correspondingly designed rotors. 1. A screw rotor for a screw type vacuum pump , the screw rotor comprising:a rotor shaft, a rotor core which rests on the rotor shaft, and a rotor cover which rests on the rotor core and at least partially encloses the rotor core,wherein the rotor core is made of a material having a thermal conductivity greater than 100 W/m·K.2. The rotor according to claim 1 , whereinthe rotor shaft is made of a material having a thermal conductivity greater than 100 W/m·K.3. The rotor according to claim 2 , whereinthe rotor shaft and the rotor core are designed as one piece.4. The rotor according to claim 1 , whereinthe rotor core extends into the screw threads of the rotor.5. The rotor according to claim 4 , whereinthe rotor core extends into the screw threads of the rotor only in an area of the rotor which during operation faces an outlet of a pump chamber.6. The rotor according to claim 1 , whereinthe rotor cover is made of a material which has a low thermal conductivity compared to the thermal conductivity of the rotor core and of the rotor shaft.7. The rotor according to claim 6 , whereinthe rotor cover is made of plastic.8. The rotor according to claim 7 , whereinat least one of the rotor core, parts thereof, and the rotor shaft is made of copper, aluminum, or alloys of these materials.9. The rotor according to claim 1 , whereinthe rotor is configured for a one-sided bearing at only one end of the rotor shaft.10. The rotor according to claim 9 , whereinin an area of the ...

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Номер записи: 21

19-09-2013 дата публикации

Self-Cleaning Screw-Type Centrifugal Wheel Pump with Recirculation Behind the Impeller

Номер: US20130243634A1

Автор: Ciro Robles, Stahle Carl

Принадлежит: FRIDECO AG C/O HIDROTLAL AG

The screw-type centrifugal wheel pump () comprises a pump housing () and a screw-type centrifugal wheel () arranged rotatably within the pump housing () and having a hub () and a blade (), and comprises a rotatable drive shaft () connected to the screw-type centrifugal wheel (), and comprises a cover plate () arranged between the screw-type centrifugal wheel () and a housing rear wall (), wherein the cover plate () has a central opening () through which the hub () or the drive shaft () runs, and wherein an interior space () is formed between the cover plate () and the housing rear wall (), wherein a gap () is formed between the central opening () of the cover plate () and the hub () or the drive shaft (), which gap is connected in fluid-conducting fashion to the interior space (), wherein the cover plate () has at least one aperture (), which is arranged spaced apart from the central opening (), in order to generate a fluid flow (F) which flows into the interior space () via the aperture () and out of the interior space () again via the gap (). 113323320321253320220232221333722322322252024222520222133237242222022520222022371372372aaghahkahagbagaaaaahab. A screw-type centrifugal wheel pump () comprising a pump housing () with a pump inflow opening () and with a housing rear wall () arranged opposite the pump inflow opening () , comprising a screw-type centrifugal wheel () which is rotatably arranged within the pump housing () and which has a hub () and an impeller () , and comprising a rotatable drive shaft () which is connected to the screw-type centrifugal wheel () , and comprising a cover plate () which is arranged between the screw-type centrifugal wheel () and the housing rear wall () , wherein the cover plate () has a central opening () through which the hub () or the drive shaft () extends , and wherein an interior space () is formed between the cover plate () and the housing rear wall () , wherein the cover plate () has a front side () oriented toward the ...

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Номер записи: 22

21-11-2013 дата публикации

Sliding vane positive displacement pump

Номер: US20130309114A1

Автор: Michael D. Walters

Принадлежит: Delaware Capital Formation Inc

A sliding vane, positive displacement pump is provided which uses a fixed disc configuration wherein a rotor includes a pair of discs affixed to opposite faces of the rotor so as to rotate with the rotor/shaft. Preferably, the discs each have an outer diameter proximate the outer diameter of the rotor and define an outer disc surface which faces radially outwardly towards an opposing, inside surface of the pump head or other casing structure. A dynamic seal is provided along the outside disc diameter which eliminates the formation of slip between end surfaces. The path of fluid traveling from the high pressure pump side near the outlet to the low pressure side of pump near the inlet is controlled with a radial clearance that is defined between the OD of each disc and the ID of the stationary head. This effectively eliminates direct slip paths extending radially across axially-directed end faces

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Номер записи: 23

21-11-2013 дата публикации

Double internal gear wheel pump

Номер: US20130309120A1

Автор: Norbert Alaze, René Schepp

Принадлежит: ROBERT BOSCH GMBH

A double internal gear wheel pump includes two internal gear wheel pumps configured as hydraulic pumps of a hydraulic, slip-controlled vehicle braking system. The double internal gear wheel pump further includes a partition wall that is arranged between both internal gear wheel pumps. The partition wall is configured as a single-piece component of a pump housing, preferably formed by a hydraulic block of the vehicle braking system.

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Номер записи: 24

28-11-2013 дата публикации

Scroll expander

Номер: US20130315767A1

Автор: Atsushi Unami, Tamotsu Fujioka

Принадлежит: Anest Iwata Corp

Provided is a double rotation type scroll expander, aiming at protecting a bearing that supports drive shaft a drive shaft and the like from the heat of a working medium when a working medium introduction hole is provided in the drive shaft. The working medium introduction hole is drilled into the drive shaft such that the high-temperature, high-pressure working medium is supplied to expansion chambers through the working medium introduction hole. An adiabatic sleeve that forms a part of the working medium introduction hole is attached to the drive shaft in an internal region of roller bearings that support the drive shaft and a driven scroll body rotatably. Heat transfer from the working medium to the roller bearings is suppressed by the adiabatic sleeve, whereby the roller bearings are prevented from deteriorating.

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Номер записи: 25

02-01-2014 дата публикации

Pneumatic motor

Номер: US20140000447A1

Автор: Chih-Ming Ting

Принадлежит: Individual

A pneumatic motor includes a cylinder and a rotor disposed in the cylinder. The rotor includes an axle, and main and secondary blades are slidably received in a plurality of main and secondary sliding slots formed on the axle. The secondary blades touch an inner wall of the cylinder to promote torque output when located at angles equal to or smaller than a specific angle from an inlet of the cylinder. On the contrary, the secondary blades are away from the inner wall of the cylinder to reduce friction between the rotor and the cylinder when located at angles larger than the specific angle from the inlet. Thus, revolution speed of the rotor is retained in a tolerant range, and torque output is promoted significantly.

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Номер записи: 26

02-01-2014 дата публикации

Pump Device

Номер: US20140003981A1

Автор: Chiharu Nakazawa, Toshihiro Koizumi

Принадлежит: HITACHI AUTOMOTIVE SYSTEMS LTD

A pump device has a motor rotation shaft and a pump rotation shaft whose end portion is connected to an end portion of the motor rotation shaft and which drives a pump unit. The pump device includes: an outer circumferential seal portion that is arranged at either one or both of radially outer sides of the end portion of the pump rotation shaft and the end portion of the motor rotation shaft so as to overlap with either one or both of the end portion of the pump rotation shaft and the end portion of the motor rotation shaft in axial directions of the pump rotation shaft and the motor rotation shaft and has an outer circumferential seal surface; and a seal unit that makes sliding contact with the outer circumferential seal portion.

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Номер записи: 27

02-01-2014 дата публикации

AIRCRAFT MAIN ENGINE FUEL PUMP WITH MULTIPLE GEAR STAGES USING SHARED JOURNALS

Номер: US20140003987A1

Автор: Martin-Dye Simon

Принадлежит:

A multistage gear pump assembly includes first and second gear pumps that use common shafts and are axially separated by a fixed spacer within the housing. Pressurized bearings are provided at opposite axial ends of the first and second gear pumps. The second gear pump handles cruise and idle operations of the aircraft while the first gear pump stage assists in meeting higher demand modes of engine operation. Otherwise, the first gear pump is maintained at a minimal pressure to reduce energy consumption and still provide desired stability and eliminate issues associated with bearing oil whirl associated with prior known arrangements. When additional assistance is required, such as during takeoff, climb, or windmill relight, the first gear pump advantageously contributes to the increased pressure. 1. A multistage gear pump assembly comprising:a housing having an opening therein;a first gear pump received in the housing having a first drive journal shaft that rotates about a first axis and drives a first gear that operatively engages a second gear rotating about an adjacent second axis for pressurizing fluid as the first and second gears mesh with one another;a second gear pump received in the housing having a first gear received on the first drive shaft in spaced relation along the first axis from the first gear of the first gear pump, and the first gear of the second gear pump operatively engaging a second gear rotating about the second axis for pressurizing fluid as the first and second gears mesh with one another;a spacer fixed in the housing to prevent relative movement between the fixed spacer and the housing, the fixed spacer interposed between the first and second gear pumps; andat least a first pressurized journal bearing supporting at least the first drive journal shaft.2. The pump assembly of wherein the first gears of the first and second pumps are different sizes.3. The pump assembly of wherein the first gear of the first pump has a greater axial length ...

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Номер записи: 28

16-01-2014 дата публикации

COMPRESSOR INCLUDING SUCTION BAFFLE

Номер: US20140017106A1

Автор: Bergman Kyle M., Brown Keith, Strawn Bradley

Принадлежит:

A compressor includes a shell, a bearing housing, a compression mechanism and a suction baffle. The shell defines a suction pressure region and a suction gas inlet. The bearing housing is fixed relative to the shell within the suction pressure region. The compression mechanism is located within the shell, supported on the bearing housing and in communication with the suction pressure region. The suction baffle is located within the suction pressure region and includes a main body located radially between the bearing housing and the suction gas inlet, a first tab extending from a first lateral end of the main body, and a second tab extending from the first lateral end of the main body and spaced axially from the first tab to define a first recess between the first and second tabs. The bearing housing defines a first leg extending within the recess. 1. A compressor comprising:a shell defining a suction pressure region and a suction gas inlet in communication with said suction pressure region;a bearing housing fixed relative to said shell within said suction pressure region;a compression mechanism located within said shell, supported on said bearing housing and in communication with said suction pressure region; and a main body located radially between said bearing housing and said suction gas inlet;', 'a first tab extending from a first lateral end of said main body; and', 'a second tab extending from said first lateral end of said main body and spaced axially from said first tab to define a first recess between said first and second tabs, said bearing housing defining a first leg extending within said recess and securing said suction baffle axially relative to said bearing housing., 'a suction baffle located within said suction pressure region and including2. The compressor of claim 1 , wherein said suction baffle is retained radially between an outer surface of said bearing housing and an inner surface of said shell.3. The compressor of claim 2 , wherein said ...

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Номер записи: 29

23-01-2014 дата публикации

COMBINED MOTOR AND BRAKE WITH ROTATING BRAKE-RELEASE PISTON

Номер: US20140023543A1

Автор: ATTARDE Trimbak S., LUCAS Jay Paul, THAKUR Hrishikesh N.

Принадлежит:

The present disclosure relates to a combined hydraulic motor and brake including a hydraulic motor having a hydraulic motor housing, a drive shaft assembly that is driven by the hydraulic motor, a stationary housing that is fixed relative to the hydraulic motor housing, and a rotatable housing that is rotatably driven by the drive shaft assembly. The combined hydraulic motor and brake also includes a brake for resisting relative rotation between the rotatable housing and the stationary housing, and a piston that is hydraulically actuated to release the brake. The piston is carried with the rotatable housing such that the piston, the rotatable housing and at least a portion of the drive shaft assembly are configured to rotate as a unit. 1. A combined hydraulic motor and brake comprising:a stationary housing defining a shaft passage;a driven hub;a bearing positioned between the driven hub and the stationary housing for allowing the driven hub to rotate relative to the stationary housing about an axis of rotation that extends through the shaft passage;a drive shaft that extends through the shaft passage of the stationary housing;hydraulic motor for rotating the drive shaft relative to the stationary housing;a coupler for coupling the drive shaft to the driven hub such that the coupler and the driven hub rotate as a unit about the axis of rotation when the drive shaft is rotated by the hydraulic motor;a brake including a brake pack having first brake pads mounted to the stationary housing and second brake pads carried by the driven hub such that the second brake pads rotate relative to the first brake pads when the driven hub rotates relative to the stationary housing, the first and second brake pads being interleaved relative to one another;a brake piston carried with the coupler and the driven hub when the coupler and driven hub are rotated about the axis of rotation;an outer radial piston seal positioned between the brake piston and the driven hub;an inner radial ...

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Номер записи: 30

23-01-2014 дата публикации

FREEWHEEL HYDRAULIC MOTOR

Номер: US20140023544A1

Автор: LUCAS Jay Paul

Принадлежит:

The present disclosure relates to a hydraulic drive having a stationary housing. The hydraulic drive also has a drive shaft that extends through the stationary housing. Furthermore, the hydraulic drive has a hydraulic motor for rotating the drive shaft relative to the stationary housing. Additionally, the hydraulic drive includes a driven hub adapted to be connected to a rotatable driven element. The hydraulic drive also has a coupling/decoupling arrangement that allows the hydraulic drive to be operated in an engaged mode where the drive shaft is coupled to the driven hub in a direct drive arrangement and a disengaged mode where the drive shaft is decoupled from the driven hub. When the hydraulic drive is operated in the engaged mode torque from the drive shaft is transferred to the driven hub causing the driven hub to rotate relative to the stationary housing. When the hydraulic drive is operated in the disengaged mode the driven hub can free wheel relative to the drive shaft. 1. A hydraulic drive comprising:a stationary housing;a drive shaft that extends through the stationary housing;a hydraulic motor for rotating the drive shaft relative to the stationary housing;a driven hub adapted to be connected to a rotatable driven element; anda coupling/decoupling arrangement that allows the hydraulic drive to be operated in an engaged mode where the drive shaft is coupled to the driven hub in a direct drive arrangement and a disengaged mode where the drive shaft is decoupled from the driven hub, wherein when the hydraulic drive is operated in the engaged mode torque from the drive shaft is transferred to the driven hub causing the driven hub to rotate relative to the stationary housing, and wherein when the hydraulic drive is operated in the disengaged mode the driven hub can free wheel relative to the drive shaft.2. The hydraulic drive of claim 1 , wherein the hydraulic motor is a gerotor-type hydraulic motor.3. The hydraulic drive of claim 1 , further comprising a ...

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Номер записи: 31

06-02-2014 дата публикации

Bearing Release, In Particular For A Steering Column

Номер: US20140037240A1

Автор: Bussit Sylvain, Jansen Daniel, Lepine Thomas, Montboeuf Bruno

Принадлежит: AKTIEBOLAGET SKF

The invention relates to a bearing device which comprises an internal ring and an external ring, which are each provided with a bearing path for rolling elements which are arranged between the rings in contact with the bearing paths. At least one of the two rings comprises a casing which is provided with an axial portion, two radial portions at the ends thereof. This device also comprises two bearing elements which are mounted in the casing and which each form a bearing path, and at least one pretensioning element which is produced from resilient material and which is arranged between one of the radial portions of the casing and one of the bearing elements. A pretensioning element is mounted in the casing of a first ring in frictional contact with the second ring in order to apply a resistant torque during the rotation of one ring relative to the other. 1. A bearing device comprising:an internal ring provided with an internal ring bearing path;an external ring provided with an external ring bearing path;rolling elements, wherein the rolling elements are arranged between the internal ring and the external ring and in contact with the internal ring bearing path and the external ring bearing path; a casing provided with an axial portion and two radial portions at the ends thereof,', 'two bearing elements mounted in the casing, each bearing element forming at least one of the internal ring bearing path and the internal ring bearing path, and', 'at least one pretensioning element which is produced from resilient material and which is arranged between one of the radial portions of the casing and one of the two bearing elements,, 'at least one of the internal ring and the external ring comprisingwherein one of said at least one pretensioning elements is mounted in the casing of one of the internal ring and the external ring in frictional contact with the other one of the internal ring and the external ring in order to apply a resistant torque during the rotation of the ...

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Номер записи: 32

06-02-2014 дата публикации

GEROTOR DEVICE ROLLER POCKET GEOMETRY

Номер: US20140037487A1

Автор: JR. Hollis N., White

Принадлежит: WHITE DRIVE PRODUCTS, INC.

A gerotor device includes a rotor having outwardly extending teeth and a stator having inwardly extending teeth. The inwardly extending teeth are formed by rollers each of which is received in a respective roller pocket in the stator. Each roller pocket has a maximum pocket width measured perpendicular to a pocket centerline. Each roller pocket defines a roller bearing surface having a first side that follows a first radius and a second side on an opposite side of the centerline that follows a second radius. Each radius is greater than ½ the maximum pocket width. Each roller pocket has an edge pocket width between a first pocket edge where the pocket transitions to a generally cylindrical section in the stator and a second pocket edge on an opposite side of the centerline. The edge pocket width is less than the maximum pocket width. 1. A gerotor device including a rotor having outwardly extending teeth and a stator having inwardly extending teeth , wherein the inwardly extending teeth are formed by rollers each of which is received in a respective roller pocket in the stator , wherein the rotor forms pressure chambers with the rollers , wherein each roller pocket has a maximum pocket width measured perpendicular to a pocket centerline , wherein each roller pocket defines a roller bearing surface having a first side that follows a first radius and a second side on an opposite side of the centerline that follows a second radius , wherein each radius is greater than ½ the maximum pocket width , wherein each roller pocket has an edge pocket width measured parallel with the maximum pocket width between a first pocket edge where the pocket transitions to a central cavity in the stator and a second pocket edge where the pocket transitions to the central cavity in the stator on an opposite side of the centerline , and the edge pocket width is less than the maximum pocket width.2. The gerotor device of claim 1 , wherein each roller pocket surrounds the respective roller ...

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Номер записи: 33

04-01-2018 дата публикации

PNEUMATIC MOTOR FOR A PNEUMATIC TOOL

Номер: US20180003059A1

Автор: CHANG Hsin-He

Принадлежит: AIRBOSS AIR TOOL CO., LTD.

A pneumatic motor has a housing, an axle, and multiple blades. The axle is rotatably mounted in the housing and has multiple blade recesses. The blades are mounted respectively and moveably in the blade recesses. Each blade has an inner side edge. The inner side edge is mounted in a corresponding one of the blade recesses. The inner side edge of each one of at least half of the multiple blades has a straight segment and a rectangular tab. Each one of the blade recesses which holds the blade having the straight segment and the rectangular tab has a bottom having a straight segment and a tab hole. 1. A pneumatic motor comprising:a housing having an inlet and an outlet;an axle rotatably mounted in the housing and having multiple blade recesses radially defined in the axle; an inner side edge mounted in a corresponding one of the blade recesses; and', 'an outer side edge being opposite the inner side edge and extending out of the corresponding blade recess, wherein, 'multiple blades mounted respectively and moveably in the blade recesses in the axle, and each blade having'} a straight segment formed on the inner side edge; and', 'a rectangular tab formed on and protruding from a middle of the straight segment;, 'the inner side edge of each one of at least half of the multiple blades has'} a straight segment corresponding to the straight segment in position and shape; and', 'a tab hole having a rectangular cross section, defined in a middle of the straight segment of the bottom of the blade recess, and selectively holding the rectangular tab on the corresponding blade inside., 'each one of the blade recesses which holds the blade having the straight segment and the rectangular tab has a bottom having'}2. The pneumatic motor as claimed in claim 1 , wherein more than six blades are implemented.3. The pneumatic motor as claimed in claim 2 , wherein twelve blades are implemented.4. The pneumatic motor as claimed in claim 3 , wherein each rectangular tab has a length smaller ...

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Номер записи: 34

07-01-2021 дата публикации

ROTARY ENGINE

Номер: US20210003011A1

Автор: JANG Sooho, LEE Yunhi, PARK Gunyoung, YU Byeonghun

Принадлежит:

Disclosed herein is a rotary engine a supply flow passage provided in the housing to allow the lubricating oil to move therethrough, a sealing part arranged to contact the rotor to selectively close the supply flow passage, and an elastic part configured to press the sealing part toward the combustion chamber. 1. A rotary engine , comprising:a housing having a chamber in which a fuel is provided and a supply flow passage through which a lubricating oil supplied to the chamber flows;a rotor provided in the chamber and configured to be rotated to compress the provided fuel; andan oil supplier provided in the housing to supply the lubricating oil to the supply flow passage, a plug configured to contact a portion of the rotor to selectively close the supply flow passage; and', 'an elastic member configured to press the plug toward the chamber., 'wherein the oil supplier includes2. The rotary engine of claim 1 , wherein the housing comprises:a rotor housing having a side surface configured to be in contact with at least one surface of the rotor, the side surface defining an inner side surface of the chamber;a first housing coupled to the rotor housing and defining a first side of the chamber; anda second housing coupled to the rotor housing and defining a second side of the chamber, the second side being opposite to the first side, wherein the supply flow passage is provided in at least one of the first housing or the second housing.3. The rotary engine of claim 2 , wherein the supply flow passage comprises:a flow passage provided in at least one of the first housing or the second housing through which lubricating oil is provided; andan inflow hole formed through the at least one of the first housing or the second housing and communicating with the transport flow passage,wherein the plug is inserted in the inflow hole such that, when the rotor contacts the plug, the plug is moved to open the inflow hole.4. The rotary engine of claim 3 , wherein:the supply flow passage ...

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Номер записи: 35

03-01-2019 дата публикации

INTERNAL COMBUSTION ENGINE WITH ROTOR HAVING OFFSET PERIPHERAL SURFACE

Номер: US20190003307A1

Автор: GAGNON-MARTIN David, GAUVREAU Jean-Gabriel, Julien André

Принадлежит:

A rotary engine where the rotor cavity has a peripheral inner surface having a peritrochoid configuration defined by a first eccentricity and the rotor has a peripheral outer surface having a peritrochoid inner envelope configuration defined by a second eccentricity larger than the first eccentricity. Also, a rotary engine where the rotor cavity has a peripheral inner surface having a peritrochoid configuration defined by an eccentricity, and a rotor with a peripheral outer surface between adjacent ones of the apex portions being inwardly offset from a peritrochoid inner envelope configuration defined by the eccentricity. The engine may have an expansion ratio with a value of at most 8. The rotary engine may be part of a compound engine system. 1. A rotary engine comprising:{'sub': 'H', 'a housing defining a rotor cavity with a peripheral inner surface having a peritrochoid configuration defined by a first eccentricity e; and'}{'sub': R', 'R', 'H, 'a rotor rotationally received in the rotor cavity, the rotor having a peripheral outer surface defining a plurality of circumferentially spaced apex portions each including an apex seal biased away from the peripheral outer surface and engaging the peripheral inner surface of the rotor cavity, the peripheral outer surface of the rotor having a peritrochoid inner envelope configuration defined by a second eccentricity e, the second eccentricity ebeing larger than the first eccentricity e.'}2. The rotary engine as defined in claim 1 , wherein the peritrochoid configuration of the peripheral inner surface of the rotor cavity and the peritrochoid inner envelope configuration of the peripheral outer surface of the rotor have a same generating radius.5. The rotary engine as defined in claim 1 , wherein the rotary engine has an expansion ratio of at most 8.6. The rotary engine as defined in claim 1 , wherein the expansion ratio has a value of at least 5.7. The rotary engine as defined in claim 4 , wherein the rotary engine has a ...

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Номер записи: 36

12-01-2017 дата публикации

ROTARY ENGINE SEALS

Номер: US20170009582A1

Автор: Chana Kamaljit Singh, PEKRIS Michael Joseph

Принадлежит: OXFORD UNIVERSITY INNOVATION LIMITED

The invention relates to a rotor assembly having a sealing system for sealing at apexes or faces of the rotor. In a disclosed arrangement the apex seal or the face seal comprises a compliant member that is configured such that the shape or orientation of the compliant member can change in use in response to a change in the speed of rotation of the rotor, a change in the pressurisation across the compliant member, or a change in clearance between the sealing surface and a mounting element to which the compliant member is mounted, to deflect towards or away from the sealing surface. 1. A rotor assembly for a rotary engine , comprising:a housing;a rotor configured to rotate eccentrically within the housing; anda sealing system, wherein:the rotor comprises a plurality of apexes that are configured to engage with a radially inner sealing surface of the housing in order to define a plurality of separate working volumes, each working volume being located between two of the apexes, the radially inner sealing surface of the housing and a radially outer surface of the rotor;the sealing system comprises an apex seal located at one of the apexes, the apex seal being configured to provide an engagement between the apex and the radially inner sealing surface of the housing that inhibits movement of gas from one working volume to another working volume past the apex throughout the range of rotation of the rotor;the sealing system comprises a face seal located on a face of the rotor that is perpendicular to the axial direction, the face seal being configured to provide an engagement between the face of the rotor and a sealing surface of the housing that is perpendicular to the axial direction that inhibits movement of gas from one working volume to another past a portion of the face;the apex seal or the face seal comprises a compliant member, which is the part of the seal that most closely approaches the sealing surface;the compliant member is configured such that the shape or ...

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Номер записи: 37

12-01-2017 дата публикации

Working Member of a Helical Rotary Machine

Номер: US20170009583A1

Автор: KAZAKIAVICHIUS Sergei M., KUZNETSOV Vladimir M., REMNEVA Tatiana A., SKOVORODIN Aleksandr V., STANOVSKOI Viktor V., ZAKHARKIN Nikolai V.

Принадлежит:

Disclosed are rotary positive displacement machines capable of acting as an engine and as a pump, serving to improve the profile of working members of helical rotary engines, compressors and pumps. An actuator is comprised of a pair of rotors having engaged helical teeth. The rotors are disposed in chambers which encircle both. The working areas of the profiles of the teeth in an engaged pair are delineated in cross-section by portions of a cycloidal curve for one rotor and by arcs of circumferences which are eccentrically offset from the axis of the second rotor. Such a profile of teeth produces an eccentrically cycloidal engagement capable to work efficiently at very high rotor rotation speeds. The presence of power contact and low sensitivity to gearwheel skews allow for working with nonhomogeneous media, including those containing solid inclusions. 1. An actuator of a helical rotary machine , the actuator comprising pair-wise interacting helical rotors disposed in an encircling chamber , wherein a tooth profile of one rotor of the helical rotors in the pair is formed by convex segments of front portions of a cycloidal curve , and wherein working areas of teeth of a second rotor in the pair are formed by arcs of circumferences eccentrically offset from a rotor axis , so that helical teeth in the pair of rotors form an eccentrically cycloidal engagement.235. The actuator of the helical rotary machine of claim 1 , wherein a number of teeth of the pair of rotors is between and . This Application is a Continuation application of International Application PCT/RU2014/000660, filed on Sep. 4, 2014, which in turn claims priority to Russian Patent Applications No. RU 2013141721, filed Sep. 10, 2013, both of which are incorporated herein by reference in their entirety.The invention relates to the field of rotary positive displacement machines capable of acting as an engine and as a pump and relates to improving the profile of the working members of helical rotary engines, ...

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Номер записи: 38

10-01-2019 дата публикации

PUMP WITH ROTOR HAVING ARCUATE SLOTS AND VANES

Номер: US20190010942A1

Автор: CLARK Tyler J. E., Patterson Albert

Принадлежит:

A pump includes a shaft to rotate about a longitudinal axis, a rotor, at least two arcuate slots extending continuously into and through the rotor, wherein each of the slots is curved along a longitudinal slot axis, and at least two arcuate vanes, each of the vanes being shaped to be slidably seated in one of the slots, each of the vanes being movable in the corresponding slot between an extended position with the external edge of the vane adjacent the interior sidewall of the housing, and a retracted position wherein the external edge of the vane does not extend beyond the cylindrical surface of the rotor. Each of the vanes is spaced from an adjacent vane about the rotor such that there is always at least one vane positioned between the fluid inlet and fluid outlet ports. 1. A rotary pump comprising:a shaft to rotate about a longitudinal axis;a rotor centrally secured to the shaft, the rotor having a body with spaced ends and a cylindrical surface extending between the spaced ends;a rotor disk secured to each end of the rotor and secured at a centre of the rotor disk to the shaft;a housing encasing the shaft, the rotor disks, and the rotor within an internal cavity, the housing having interior end walls and an interior sidewall, with fluid inlet and fluid outlet ports in the interior sidewall, a first section of the interior sidewall of the housing being cylindrical and curved with a constant radius over an angle of about approximately 180°, the first section being spaced a constant distance from confronting sections of the cylindrical surface of the rotor, and a second section of the interior sidewall of the housing extending between the extremities of the first section of the interior sidewall, the cylindrical surface of the rotor being proximal to the interior sidewall of the housing between the fluid inlet and fluid outlet ports about midway along the second section, the fluid inlet and fluid outlet ports being located in the second section of the interior ...

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Номер записи: 39

09-01-2020 дата публикации

METHODS AND SYSTEMS FOR SEALING ROTATING EQUIPMENT SUCH AS EXPANDERS OR COMPRESSORS

Номер: US20200011426A1

Автор: Juchymenko Victor

Принадлежит:

A method and system is provided for pressure balancing one or more seals in machines such as expanders and/or compressors using the process fluid which is being expanded or compressed to provide the pressure for pressure balancing the other side of the one or more seals. The one or more seals may be part of a pressure containing chamber which may comprise a seal, a bearing and/or a gear on a rotating shaft common to the seal. An amount of pressure to be supplied to housing(s) for a machine so as to create a pressure cascade, and thereby dropping the pressure in each subsequent chamber as pressure approaches atmosphere. Pressure differentials may be directed to leak process fluid to the chamber into the process. Pressurized lube oil systems may be employed for balancing pressure and delivering lubricant to the seals, bearings and gears. 1. A system for distributing pressure across seals , comprising:a machine, configured to handle process fluid, the machine comprising a higher pressure process pipe and a lower pressure process pipe;a first pressure chamber, operatively coupled to one portion of the machine, wherein the first pressure chamber is configured to be pressurized by the process fluid, the first pressure chamber comprising one or more first chamber seals; anda second pressure chamber, operatively coupled to another portion of the machine, wherein the second pressure chamber is configured to be pressurized by the process fluid, the second pressure chamber comprising one or more second chamber seals;wherein the machine is configured to direct process fluid, via the one or more of the first chamber seals and second chamber seals,wherein at least one of the first chambers and/or second chambers is connected via a pressure balancing line to a point in the machine that is at a lower pressure than the pressure at the seal.2. The system of claim 1 , wherein the pressure balancing line is operative to assist in directing the process fluid from the first pressure ...

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Номер записи: 40

15-01-2015 дата публикации

GAS PRESSURE REDUCTION GENERATOR

Номер: US20150016952A1

Автор: Oxner Andrew

Принадлежит:

Gas Pressure Reduction Generator (GPRG) systems and methods for implementing a GPRG system are provided, where the GPRG systems comprise a gas inlet configured to receive a pressurized gas flow, at least one expander in gas flow receiving communication with the gas inlet wherein the expander is operable to convert the pressurized gas flow into mechanical energy and a depressurized gas flow, and a generator configured to convert the mechanical energy into electrical energy. 1. A gas pressure reduction generator system comprising in combination:A. a pressurized gas flow inlet;B. a pressurized gas speed governor in pressurized gas flow communication with the pressurized gas flow inlet;C. at least one pressurized gas expander having (i) a pressurized gas expander inlet in pressurized gas flow communication with the pressurized gas speed governor, (ii) a reduced pressure gas outlet, and iii) an expander shaft rotation monitor; andD. a power generating generator in rotational generator driving communication with the pressurized gas expander.2. The system of wherein the pressurized gas flow inlet is a pressurized natural gas flow inlet.3. The system of wherein the expander shaft rotation monitor is in communication with the pressurized gas speed governor.4. The system of wherein the expander is a screw expander.5. The system of wherein the expander is a lubricated expander.6. The system of further comprising (i) a lubrication oil separator/reservoir in lubrication oil receiving communication with the reduced pressure gas outlet and (ii) a lubrication oil pump in lubrication oil receiving communication with the lubrication oil separator/reservoir and in lubrication oil sending communication with the expander.7. The system of further comprising one or more lubrication oil heaters interposed (i) between the reduced pressure gas outlet and the lubrication oil separator/reservoir claim 6 , (ii) between the lubrication oil separator/reservoir and the lubrication oil pump claim 6 ...

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Номер записи: 41

15-01-2015 дата публикации

Liquid ring compressor

Номер: US20150017027A1

Автор: Gad Assaf

Принадлежит: Agam Energy Systems Ltd

A liquid-ring, rotating-casing compressor comprises a shaft carrying an impeller having a core and a plurality of radially extending vanes rotatably coupled to the shaft for rotation around a first axis, and a tubular casing mounted for rotation relative to the impeller around a second axis that is parallel to and offset from the first axis. The casing and impeller define a compression zone wherein edges of the vanes rotate in increasing proximity to an inner surface of the casing and an expansion zone wherein edges of the vanes rotate in increasing spaced-apart relationship along an inner surface of the casing. An inlet port communicates with the expansion zone, an outlet port communicates with the compression zone, and a drive imparts rotating motion to the casing. The eccentricity ecr of the casing relative to the impeller is between about (1−c)/4 and (1−c)/9, preferably less than half (1−c)/3.

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Номер записи: 42

15-01-2015 дата публикации

SINGLE FLIGHT SCREW, A SINGLE FLIGHT HIGH PRESSURE SCREW PUMP AND COMPACTOR CONTAINING SUCH A PUMP

Номер: US20150017048A1

Автор: Blanchard Kenneth, Duperon Terry

Принадлежит:

A single flight screw, a single flight high pressure screw pump and the use of the pump in a compactor for compacting and dewatering debris commonly found in waste water. The bore, screw diameter and the flight spacing are constant and the compression force is mostly axial. The work is done at the very end of the screw. 1. A single flight screw , said screw comprising a shaft having two ends , said shaft having a single flight helical wrapped around said shaft in an inclined plane , essentially from one end of said shaft to the opposite end of said shaft , said single flight helical having a front end with a terminating end wherein said front end of said single flight helical , at said terminating end , is cut such that the vertical height of said flight is 30 to 70 percent of the height of said remainder of said helical flight.2. A single flight claim 1 , high pressure screw pump comprising a screw housing having a front opening and a hack and located within said screw housing claim 1 , a screw as claimed in .3. A single flight claim 2 , high pressure screw pump as claimed in claim 2 , wherein claim 2 , in addition claim 2 ,a. the screw housing is lined with intermittent linear supports;b. said screw housing having mounted thereon, at the front thereof, a spring housing, said spring housing having an open back end and an open front end;{'figref': {'@idref': 'DRAWINGS', 'FIG. 5'}, 'c. contained in said spring housing a resistant spring assembly as shown in .'}4. A single flight claim 2 , high pressure screw pump as claimed in claim 2 , wherein claim 2 , in addition claim 2 ,a. the screw housing is lined with intermittent linear supports;b. said screw housing having mounted thereon, at the front thereof, a spring housing, said spring housing having an open back end and an open front end;{'figref': {'@idref': 'DRAWINGS', 'FIG. 6'}, 'c. contained in said spring housing a resistant spring assembly as shown in .'}5. A single flight claim 2 , high pressure screw pump as ...

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Номер записи: 43

15-01-2015 дата публикации

OIL PUMP

Номер: US20150017049A1

Автор: Naiki Takehiko

Принадлежит: MUKUNI CORPORATION

An oil pump of the present invention includes a housing (), a rotary shaft () which is supported by the housing, an inner rotor () which is rotated in the housing integrally with the rotary shaft, an outer rotor () which is rotated in the housing as being interlocked with the inner rotor, a rotor case () which is fitted into the housing and which contains the inner rotor and the outer rotor and supports an outer circumferential face of the outer rotor in a slidable manner, a side plate () which is arranged to be in contact with at least one annular end face of the rotor case, and an elastic member () which exerts an urging force to press the side plate to the annular end face of the rotor case. According to the above, slide resistance and operational torque can be reduced and side clearance can be maintained at constant. 1. An oil pump , comprising:a housing;a rotary shaft which is supported by the housing;an inner rotor which is rotated in the housing integrally with the rotary shaft;an outer rotor which is rotated in the housing as being interlocked with the inner rotor;a rotor case which is fitted into the housing and which contains the inner rotor and the outer rotor and supports an outer circumferential face of the outer rotor in a slidable manner;a side plate which is arranged to be in contact with at least one annular end face of the rotor case; andan elastic member which exerts an urging force to press the side plate to the annular end face of the rotor case.2. The oil pump according to claim 1 ,wherein the rotor case is made of material having the same thermal expansion coefficient as that of the inner rotor and the outer rotor.3. The oil pump according to claim 2 ,wherein the side plate is made of material having the same thermal expansion coefficient as that of the housing.14. The oil pump according to claim 1 ,wherein “Wc>Wr” is satisfied while We denotes a width dimension of the rotor case in the axis line direction of the rotary shaft and Wr denotes a ...

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Номер записи: 44

15-01-2015 дата публикации

ROTARY VANE MOTOR

Номер: US20150017050A1

Автор: Landrum Michael T.

Принадлежит:

The present invention relates to a rotary motor, comprising a plurality of vanes, wherein each of the vanes is split into two subvanes, one or more elastic members, wherein the elastic member is configured to push each of the subvanes foil ling a vane toward an end plate to form a seal between the subvane and the end plate; an inner rotary member housing the plurality of vanes projecting from a central rotation axis of the inner rotor; a lobe member encompassing the inner rotary member and the plurality of vanes; a plurality of chambers wherein each of the chambers is encompassed by an inner surface of the lobe member and an outer surface of the inner rotary member; and one or more end plates to enclose the plurality of vanes, the inner rotary member, the lobe member and the plurality of chambers. 1. A rotary motor , comprising:a plurality of vanes, wherein at least one of the vanes comprises two subvanes;an inner rotary member to house the plurality of vanes;a lobe member to surround, at least in part, the inner rotary member and the plurality of vanes;a plurality of chambers wherein at least one of the chambers is surrounded, at least in part, by an inner surface of the lobe member and an outer surface of the inner rotary member; andat least one end plate to cover, at least in part, the plurality of vanes, the inner rotary member, the lobe member and the plurality of chambers.2. The rotary motor according to claim 1 , further comprising: at least one elastic member.3. The rotary motor according to claim 2 , wherein the elastic member is placed within the vane having the subvanes.4. The rotary motor according to claim 3 , wherein each subvane of the vane comprises an offset slot.5. The rotary motor according to claim 4 , wherein a surface of the offset slot in each of the subvanes is in contact with an end of the elastic member.6. The rotary motor according to claim 5 , wherein the elastic member is configured to push at least one of the subvanes toward the end ...

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Номер записи: 45

03-02-2022 дата публикации

PISTON MACHINE, MODULAR CONSTRUCTION SYSTEM FOR A PISTON MACHINE, AND METHOD FOR PRODUCING A PISTON MACHINE

Номер: US20220034226A1

Автор: Rapp Manfred Max

Принадлежит:

The invention relates to a modular construction system for a piston machine (), comprising at least two separate housing parts capable of being joined together into a housing () of the piston machine (), a piston () which is configured as a swivel element, is pivotable and is able to be arranged in the housing (), and a housing cover () for covering the housing (). The piston machine () is in particular configured as a modular construction system, the components of which are formed by multiple segments and joined together in a horizontal and a vertical direction in each case. The invention further relates to a piston machine () produced using the modular construction system and to a method for producing a piston machine (). 1. A piston machine , comprising:a piston, which is mounted in a manner capable of swiveling about a swivel axis in a working chamber having at least one inlet opening and at least one outlet opening;wherein the piston is operatively connected to at least one rotatably mounted shaft;wherein the working chamber is formed by a plurality of housing parts,wherein a cross-section of the working chamber perpendicular to the swivel axis is delimited by at least two separate side walls,wherein at least two separate side walls are arranged axially in sequence in relation to the swivel axis.2. The piston machine of claim 1 , whereinthe working chamber is delimited on a front side by a housing cover and on the back side by an end wall in relation to the swivel axis, on a top side by a arcuate wall and on a bottom side by a bearing shell in relation to the swivel axis, wherein the side walls extend between the housing cover, the end wall the arcuate wall and the bearing shell, wherein the housing cover and the end wall are each formed by at least two separate segments which are each arranged in sequence in a vertical direction extending between the arcuate wall and the bearing shell, and wherein the arcuate wall is formed by at least two separate segments, ...

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Номер записи: 46

21-01-2016 дата публикации

Stator for Progressive Cavity Pump/Motor

Номер: US20160017711A1

Автор: Morris Andrew

Принадлежит:

A stator for a progressive cavity pump or motor includes a stator housing having a longitudinal axis. In addition, the stator includes a stator insert of a material moulded within the housing. The stator housing includes an outer tube having an inner surface. The stator housing also includes a plurality of framework elements disposed on the inner surface of the outer tube. Further, the stator housing includes at least one recess in the inner surface of the outer tube. The conjunction of the framework elements and the at least one recess define a plurality of chambers receiving insert material therein whereby the insert material is mechanically fixed axially, radially and torsionally within the outer tube.

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Номер записи: 47

17-04-2014 дата публикации

ROTARY ENERGY CONVERTER WITH RETRACTABLE BARRIER

Номер: US20140102402A1

Автор: Hudson Scott

Принадлежит:

A rotary internal combustion engine includes an outer housing and an inner housing defining an enclosure therebetween, and first and second side housings disposed on opposite sides of the outer housing. At least one of the outer and inner housings is rotatable relative to the other and at least two barriers are disposed in the enclosure and divide the enclosure into a combustion chamber and an exhaust chamber. At least one barrier is rotatable relative to at least one other barrier and at least one barrier comprises a retractable barrier mounted along a pivot axis and is pivotable between an extended position and a retracted position. An intake port, exhaust port, and ignition source are also provided. The rotary internal combustion engine further includes an intake opening formed in one of the side housings. The intake opening is intermittently fluidly communicating with the combustion chamber through the intake port. 1. A rotary internal combustion engine comprising:an outer housing and an inner housing disposed within the outer housing so as to define an enclosure between an inner peripheral surface of the outer housing and an outer peripheral surface of the inner housing, at least one of the outer and inner housings being rotatable relative to the other of the outer and inner housings so as to define a drive member;first and second side housings disposed on opposite sides of the outer housing;at least two barriers disposed in the enclosure, at least one of the barriers being rotatable relative to at least one other barrier and at least one of the barriers comprising a retractable barrier mounted along a pivot axis and being pivotable between an extended position in which the at least one retractable barrier extends into the enclosure and a retracted position in which the at least one retractable barrier retracts from the extended position, the enclosure being divided into a combustion chamber and an exhaust chamber when the at least one retractable barrier is in ...

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Номер записи: 48

17-01-2019 дата публикации

Twin vane rotary vacuum pump

Номер: US20190017507A1

Автор: David Heaps, Paul Wellings, Simon Warner

Принадлежит: WABCO Europe BVBA

Vacuum pump ( 1 ), comprising a housing ( 2 ) having an inlet ( 4 ) and an outlet ( 6 ) and defining a chamber ( 8 ) within the housing ( 2 ), a rotor ( 10 ) for rotational movement about a rotational axis (AR) within the chamber ( 8 ), and at least a first and a second vane ( 22, 24 ) received in respective first and seconds slots ( 16, 18 ) formed in the rotor ( 10 ). The first and second slots ( 16, 18 ) are substantially parallel to each other, and a length (L V ) of each vane ( 22, 24 ) is larger than a length (L S ) of the respective slot. Production method of such a vacuum pump.

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Номер записи: 49

21-01-2021 дата публикации

Screw Rotor, Fluid Machine Main Body, and Fluid Machine

Номер: US20210017986A1

Автор: Horiuchi Hiroshi, ITOU Yuuji, KASAHARA Masayuki, Suzuki Tomoo

Принадлежит:

The invention prevents a decrease in strength of a screw rotor including a hollow portion and improves cooling performance. There is provided a screw rotor having a helical tooth on an outer periphery, the helical tooth extending by a predetermined length in an axial direction, in which a radial cross section of the screw rotor includes a cross section of a tooth portion, a cross section of an axial portion, a cross section of a support portion connected to an axial side of a tooth bottom or a tooth tip in the cross section of the tooth portion and an outer diameter side of the axial portion, and a cross section of a hollow portion formed by the support portions adjacent to each other in a rotational direction and an axial side inner surface of the tooth bottom or the tooth tip, and an axial longitudinal cross section of the screw rotor is a cross section in which the axial portion, the support portion, the axial side of the tooth bottom or the tooth tip, and an axial end portion of the screw rotor are continuously connected to each other as an integral structure by a three-dimensional fabrication method or the like. 1. A screw rotor having a helical tooth on an outer periphery , the helical tooth extending by a predetermined length in an axial direction ,wherein a radial cross section of the screw rotor includes a cross section of a tooth portion, a cross section of an axial portion, a cross section of a support portion connected to an axial side of a tooth bottom or a tooth tip in the cross section of the tooth portion and an outer diameter side of the axial portion, and a cross section of a hollow portion formed by the support portions adjacent to each other in a rotational direction and an axial side inner surface of the tooth bottom or the tooth tip, andan axial longitudinal cross section of the screw rotor is a cross section in which the axial portion, the support portion, the axial side of the tooth bottom or the tooth tip, and an axial end portion of the ...

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Номер записи: 50

22-01-2015 дата публикации

VOLUMETRIC SCREW COMPRESSOR

Номер: US20150023825A1

Автор: MIETTO Virgilio

Принадлежит:

The present invention concerns a compression device () suited to compress a gas, of the type comprising: a main body () suited to define a compression chamber () provided with an inlet () for the gas; a liquid for compressing the gas, suited to be injected in the compression chamber () to create a mixture comprising the liquid and the gas; compression means () arranged in the compression chamber () and suited to compress the mixture towards an outlet () of the compression chamber (); separation means (), arranged downstream of the outlet (), suited to receive the mixture and to separate the liquid and the gas that are included in the mixture; connection means () suited to connect the outlet () to the separation means (). Said connection means () comprise at least one connection channel made at least partially in said main body (). 11) Gas compression device () , comprising:{'b': 30', '130', '230', '330', '2', '32, 'a main body (; , ; ) suited to define a compression chamber () provided with an inlet () for gas, said main body being a single block;'}{'b': '2', 'a compression liquid for the gas, suited to be injected in the compression chamber () in order to obtain a mixture comprising said compression liquid and the gas;'}{'b': 21', '22', '2', '50', '2, 'compression means (, ) arranged in the compression chamber () and suited to compress the mixture towards an outlet () of the compression chamber ();'}{'b': 7', '50, 'separation means () arranged downstream of the outlet () and suited to receive the mixture and separate said compression liquid from the gas included in the mixture;'}{'b': 51', '50', '7, 'a connection channel () suited to directly connect the outlet () to said separation means ();'}{'b': 51', '30', '130', '230', '330, 'wherein said connection channel () is completely made in said main body (; , ; ).'}2) Device according to claim 1 , wherein:{'b': 7', '30', '130', '230', '330, 'said separation means () are at least partially housed in said main body (; , ...

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Номер записи: 51

26-01-2017 дата публикации

ROTOR OF A ROTARY CYLINDER

Номер: US20170022812A1

Автор: CHEN YUNG CHUAN

Принадлежит:

A rotor for a rotary cylinder includes a body having a tube and a plate which has the first end integrally formed to the tube, and the second end of the plate extends radially relative to the tube. The plate is a solid plate and has a curved outer periphery. A first recessed area is defined in each of the top and the bottom of the plate. A waist is formed to the plate and located between the first and second ends of the plate. A resilient coat is coated to the body and includes a Y-shaped seal portion along the curved outer periphery of the plate so as to be movably in contact with the inside of the cylinder. 1. A rotor for a rotary cylinder , comprising:a body having a tube and a plate which has a first end integrally formed to the tube, a second end of the plate extending radially relative to the tube, the plate being a solid plate and having a curved outer periphery, a first recessed area defined in each of a top and a bottom of the plate, a waist formed to the plate and located between the first and second ends of the plate, anda resilient coat coated to the body and including a Y-shaped seal portion along the curved outer periphery of the plate.2. The rotor as claimed in claim 1 , wherein two protrusions extend from each of the two first recessed areas.3. The rotor as claimed in claim 2 , wherein a length of each of the protrusions is substantially the same as an outer diameter of the tube.4. The rotor as claimed in claim 2 , wherein two second recessed areas are defined in each of the first recessed areas claim 2 , each of the second recessed areas has one of the protrusions extending therefrom claim 2 , an area of each of the second recessed areas is larger than a cross sectional area of the protrusion corresponding thereto.5. The rotor as claimed in claim 1 , wherein a rib extending from one of the two first recessed areas.6. The rotor as claimed in claim 1 , wherein a keyway is defined axially in an inside of the tube.7. The rotor as claimed in claim 1 , ...

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Номер записи: 52

26-01-2017 дата публикации

VANE PUMP

Номер: US20170022813A1

Автор: Goy Edward W., Ni Weishun, Wetch Joseph

Принадлежит:

A vane pump is disclosed that includes a plurality of vanes and radial slots configured to provide a gap between the vane and the radial slot such that the vane has a different angular position relative to the direction of rotation in a radially extended position compared to an angular position in a radially-retracted position. The different angular positions provide different orientation of the arcuate surface of the vane tip portion with respect to the cam body inner surface, thus providing different fluid stop points on the vane tip portion arcuate surface. 1. A vane pump , comprisinga housing including an inlet port and an outlet port;a cam block having a continuous inner surface including a pump arc and a seal arc;a rotor configured to rotate within the cam block, said rotor including a plurality of radial slots;a plurality of radially-extendable vanes that radially extend from the slots as they rotate past the cam block pump arc and retract as they rotate past the cam block seal arc, each of the vanes comprising a radial portion in one of the radial slots and a tip portion extending transverse to the radial portion in a direction of rotation of the rotor, said tip portion including an arcuate surface that engages with the cam block inner surface to provide a fluid seal point along the arcuate surface;wherein each of the plurality of vanes and radial slots are configured to provide a gap between the vane and the radial slot such that the vane has a different angular position relative to the direction of rotation in a radially extended position compared to a radially-retracted position, thereby providing different fluid stop points on the vane tip portion arcuate surface.2. The vane pump of claim 1 , wherein the fluid seal point of the vane in the radially extended position is offset in the direction of rotation relative to a leading surface of the vane radial portion.3. The vane pump of claim 1 , wherein the fluid seal point of the vane in the radially ...

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Номер записи: 53

25-01-2018 дата публикации

High Power Density and Efficiency Epitrochoidal Rotary Engine

Номер: US20180023392A1

Автор: Becker Kyle, Kopache Alexander, Littera Daniele, Nickerson Mark, Shkolnik Alexander, Shkolnik Nikolay

Принадлежит:

Various embodiments describe modifications to X-engines, which would utilize a dedicated chamber to implement bottoming Rankine cycle as well as additional improvements in sealing, combustion efficiency—all contributing to high efficiency. 1. A seal assembly for sealing a gap between an axial surface of a rotor of a rotary machine and a side housing of the machine , the seal assembly comprising: 'an outer member having (i) an axial contact surface, axially loaded against the side housing, and residing in a peripheral corner cut-out of the rotor, (ii) at least one other fluid-pressure receiving surface and (iii) an inner radial contact surface that is radially loaded against the rotor by fluid pressure;', 'a face seal havingthe face seal and the peripheral corner cut-out of the rotor being shaped so that the face seal is constrained to be within the cut-out;wherein the axial contact surface and the at least one other fluid-pressure receiving surface are shaped so that the fluid pressure causes a net force by which the axial contact surface is urged axially against the side housing and the inner radial contact surface of the outer member is urged radially against the rotor.2. A seal assembly according to claim 1 , wherein the face seal further includes a bridge member coupled to the outer member claim 1 , spanning a radial distance inwardly from the outer member.3. A seal assembly according to claim 2 , wherein the face seal further comprises an axially loaded spring disposed between the bridge member and a feature of the rotor claim 2 , so as to cause axial loading of the axial contact surface against the side housing.4. A seal assembly according to claim 3 , further comprising a secondary seal claim 3 , disposed between the axially loaded spring and the bridge member claim 3 , so that the secondary seal is axially loaded by the spring and radially loaded against the rotor by pressure of any fluid that has blown by the inner radial contact surface.5. A seal assembly ...

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Номер записи: 54

24-01-2019 дата публикации

VANE PUMP SEAL

Номер: US20190024659A1

Автор: Cavil Luke

Принадлежит:

A seal tube assembly of a pump system is provided. The seal tube assembly includes a single seal tube having a first axial end sealably coupled to a first vane pump and a second axial end sealably coupled to a second vane pump. The single seal tube includes transverse contact surfaces at the first axial end and transverse contact surfaces at the second axial end. The single seal tube is formed to define a first seal tube cavity at the first axial end and a second seal tube cavity at the second axial end 1. A pump system , comprising:first and second vane pumps that are each rotatably disposed for respective operations about first and second axial lengths of a rotor,the first vane pump comprising a first body and a first flange extending from the first body,the second vane pump comprising a second body and a second flange extending from the second body, andthe first body, the first flange, the second body and the second flange cooperatively defining a first cavity and cooperatively defining a second cavity located between the first cavity and the rotor,the pump system further comprising a seal tube assembly which is sealably coupled to the first and second flanges to inhibit fluid flow between the first and second cavities.2. The pump system according to claim 1 , wherein:the first and second bodies are annularly disposed about the rotor,the first and second flanges are annularly disposed about the rotor, andthe first and second cavities are annularly defined about the rotor.3. The pump system according to claim 1 , wherein the seal tube assembly comprises a single seal tube having a first axial end sealably coupled to the first flange and a second axial end sealably coupled to the second flange and opposite the first axial end.4. The pump system according to claim 3 , wherein the single seal tube comprises transverse claim 3 , flange contacting surfaces at the first axial end and transverse claim 3 , flange contacting surfaces at the second axial end.5. The pump ...

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Номер записи: 55

28-01-2016 дата публикации

Pump with non-tensioned electrical connection

Номер: US20160028288A1

Автор: Benjamin Pyrdok, Carsten Sczesny, Daniel ZIEHR, Freddy SCHÖNWALD

Принадлежит: Magna Powertrain Hueckeswagen GmbH

A pump having an electric motor, wherein the electric motor is fitted to the pump with a flange and has an electrical contact at the end face of the electric motor. The electric motor is covered with a guiding cover which has a groove which extends from the electrical contacts as far as an outlet opening for laying cables. The groove makes at least one radial direction change and a peripheral edge of the guiding cover seals the electric motor with respect to a flange cover of the pump with sealing of the outlet opening.

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Номер записи: 56

23-01-2020 дата публикации

GEAR PUMP BEARINGS

Номер: US20200024947A1

Автор: Goy Edward W., Samotshozo Ernest W., Wetch Joseph, Wlaznik Ryszard Czeslaw

Принадлежит:

A gear pump bearing can include a body sized and shaped to occupy a portion of a pump housing cavity such that a clearance is formed between the body and a pump housing. The gear pump bearing can also include at least one clearance consuming feature extending from an outer surface of the body configured to reduce motion of the body within the pump housing cavity. 1. A gear pump bearing , comprising:a body sized and shaped to occupy a portion of a pump housing cavity such that a clearance is formed between the body and a pump housing; andat least one clearance consuming feature extending from an outer surface of the body configured to reduce motion of the body within the pump housing cavity.2. The bearing of claim 1 , wherein the at least one clearance consuming feature is at least one pin disposed on or within the body.3. The bearing of claim 2 , wherein the at least one pin includes a plurality of pins disposed at different circumferential positions on the body.4. The bearing of claim 3 , wherein the plurality of pins includes two pins.5. The bearing of claim 4 , wherein the plurality of pins are inserted into a respective pin hole defined in the body.6. The bearing of claim 5 , wherein the plurality of pins are epoxied to the body.7. The bearing of claim 4 , wherein the pins are disposed about 45 degrees apart.8. The bearing of claim 1 , wherein the at least one clearance consuming feature is a raised outer diameter extension.9. The bearing of claim 1 , further comprising an inner aperture defined in the body for receiving a shaft of a gear.10. The bearing of claim 1 , wherein the bearing includes a flat configured to mate with a flat of mating gear bearing within the pump housing cavity.11. The bearing of claim 1 , wherein the outer surface is partially circular having a first radius claim 1 , wherein pump housing cavity is partially circular having second radius claim 1 , wherein first radius is smaller than second radius.12. A gear pump claim 1 , comprising:a ...

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Номер записи: 57

23-01-2020 дата публикации

High pressure pumping system

Номер: US20200025196A1

Автор: Justin Pierce, Ryan Weide, Scott Meyer

Принадлежит: Viking Pump Inc

One or more techniques and/or systems are disclosed for a pump technology that provides for more effective and efficient transfer of liquids, such as petroleum products and components, to and through pipelines. Such a technology can comprise a type of external gear pump that creates higher flow, resulting in higher pressures in the pipeline, to move the liquids, while providing for longer pump life, simpler and less maintenance, and fewer undesired conditions, with a smaller footprint, in a cost-effective system.

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Номер записи: 58

23-01-2020 дата публикации

COMPRESSOR WITH LIQUID INJECTION COOLING

Номер: US20200025202A1

Автор: NELSON Phil, PITTS JEREMY, WALTON JOHN

Принадлежит:

A compressor includes: a casing with an inner wall defining a compression chamber, an inlet leading into the compression chamber, and an outlet leading out of the compression chamber; a rotor rotatably coupled to the casing for rotation relative to the casing; and a gate coupled to the casing for movement relative to the casing. The gate may be pivotally, or translationally coupled to the casing. A hydrostatic bearing may be disposed between the gate and casing. A plurality of compressors may be mechanically linked together such that their compression cycles are out of phase. 132-. (canceled)33. A compressor comprising:a casing with an inner wall defining a compression chamber, an inlet leading into the compression chamber, and an outlet leading out of the compression chamber;a rotor rotatably coupled to the casing for rotation relative to the casing such that when the rotor is rotated, the compressor compresses working fluid that enters the compression chamber from the inlet, and forces compressed working fluid out of the compression chamber through the outlet;a gate coupled to the casing for reciprocating movement relative to the casing, the gate comprising a sealing edge, the gate being operable to move relative to the casing to locate the sealing edge proximate to the rotor as the rotor rotates such that the gate separates an inlet volume and a compression volume in the compression chamber; and first, second, and third seals disposed sequentially along a leakage path between the gate and casing,', 'a source of pressurized hydraulic fluid, and', 'a hydraulic fluid passageway that connects the source to a space along the leakage path between the second and third seals so as to keep the space pressurized with hydraulic fluid., 'a mechanical seal located at an interface between the gate and casing, the mechanical seal comprising34. The compressor of claim 33 , wherein the mechanical seal further comprises a vent disposed between the first and second seals claim 33 , ...

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Номер записи: 59

24-04-2014 дата публикации

HYDRAULIC MOTOR

Номер: US20140112813A1

Автор: Gilbert Kenneth T.

Принадлежит:

A hydraulic geroller (gerotor) motor, wherein an inner rotor of a revolving group has a plurality of lobes circumferentially spaced along an outer periphery of the inner rotor, and an orbiter of the revolving group includes an orbiting ring and rounded vane portions preferably formed by roller vanes contained in inner recesses of the orbiting ring for common orbiting with the orbiting ring about the fixed longitudinal axis. The orbiter also has fixed for orbiting therewith, fluid windows for directing fluid from the fluid ports to the revolving group. The windows may be formed in an integral portion of the orbiter or in a valve plate mounted for common orbiting with the orbiting orbiter. The valve plate cooperates with a stationary commutator plate or assembly to provide an efficient arrangement for the delivery and exhaust of hydraulic pressure fluid to and from the hydraulic motor. 1. A hydraulic motor comprising:a motor housing having a fluid inlet and a fluid outlet;an output shaft mounted within the motor housing for rotation about a fixed longitudinal axis; anda revolving group for revolving in respect to the fixed longitudinal axis, the revolving group including:an inner rotor mounted on the output shaft, the inner rotor having a plurality of lobes circumferentially spaced along an outer periphery of the inner rotor;an orbiting ring surrounding the inner rotor, the orbiting ring having a plurality of inner recesses circumferentially spaced along an inner periphery of the orbiting ring; anda plurality of roller vanes disposed between the inner rotor and the orbiting ring, the roller vanes being received in the inner recesses for common orbiting with the orbiting ring about the fixed longitudinal axis,wherein the orbiting ring and roller vanes orbit about the inner rotor and in respect to the fixed longitudinal axis.2. The hydraulic motor according to claim 1 , further comprising a valve plate integral with the orbiting ring claim 1 , the valve plate having a ...

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Номер записи: 60

29-01-2015 дата публикации

Variable Capacity Screw Compressor and Method

Номер: US20150030489A1

Автор: Beekman Dennis M., Crum Daniel R., Dorman Dennis R., Hagen Timothy Sean, Sauls John R.

Принадлежит:

A variable capacity screw compressor comprises a suction port, at least two screw rotors and a discharge port being configured in relation to a selected rotational speed that operates at least one screw rotor at an optimum peripheral velocity that is independent of a peripheral velocity of the at least one screw rotor at a synchronous motor rotational speed for a rated screw compressor capacity. A motor is configured to drive the at least one screw rotor at a rotational speed at a full-load capacity that is substantially greater than the synchronous motor rotational speed at the rated screw compressor capacity. A variable speed drive receives a command signal from a controller and generates a control signal that drives the motor at the selected rotational speed. 1. A variable capacity screw compressor comprising:a rotor housing comprising a suction port,a working chamber,a discharge port, andat least two screw rotors that include a female screw rotor and a male screw rotor being positioned within the working chamber for cooperatively compressing a fluid;wherein the suction port, the at least two screw rotors and the discharge port being configured in relation to a selected rotational speed;the selected rotational speed operates at least one screw rotor at an optimum peripheral velocity that is independent of a peripheral velocity of the at least one screw rotor at a synchronous motor rotational speed for a rated screw compressor capacity;a motor operable to drive the at least one screw rotor at a rotational speed at a full-load capacity that is substantially greater than the synchronous motor rotational speed at the rated screw compressor capacity; anda variable speed drive to receive a command signal from a controller and to generate a control signal that drives the motor at the rotational speed.229-. (canceled)30. The variable capacity screw compressor of claim 1 , further comprising:one or more first bearings positioned close to the discharge port;one or more ...

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Номер записи: 61

29-01-2015 дата публикации

Bearing Housing and Assembly of a Screw Compressor

Номер: US20150030490A1

Автор: Beekman Dennis M., Crum Daniel R., Dorman Dennis R., Hagen Timothy Sean, Sauls John R.

Принадлежит:

An improved bearing housing of a rotary screw compressor is described. The bearing housing is generally shorter than a convention bearing housing. The bearing housing can be configured to enclose and support radial bearings of the screw compressor. The bearing housing can be configured not to enclose axial bearings of the screw compressor in an axial direction. 1. A bearing housing of a screw compressor , comprising:a cavity defined by the bearing housing, wherein a depth of the cavity is configured to be no larger than a length of a radial bearing of a screw compressor.2. The bearing housing of claim 1 , wherein the bearing housing is configured to support a radial bearing of the screw compressor.3. The bearing housing of claim 1 , wherein the bearing housing is configured to be positioned to cover an axial end of the screw compressor.4. A screw compressor claim 1 , comprising:a rotor including a shaft;one or more radial bearings attached to the shaft;one or more axial bearings attached to the shaft; anda bearing housing, wherein the bearing housing defines a cavity that is configured to support the one or more radial bearings but not the one or more axial bearings.5. The screw compressor of claim 4 , wherein the cavity has a depth and the one or more radial bearings have a length claim 4 , and the depth of the cavity is not larger than the length of the one or more radial bearings.6. The screw compressor of claim 4 , further comprising:a bearing cover, the bearing cover configured to be attached to the bearing housing; wherein the bearing cover is configured to have a clearance with the one or more axial bearings.7. The screw compressor of claim 4 , further comprising:a bearing cover, the bearing cover defined a space; wherein the space defined by the bearing cover is configured to enclose the one or more axial bearings.8. The screw compressor of claim 4 , wherein the one or more radial bearings are positioned closer to the rotor than the one or more axial ...

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Номер записи: 62

29-01-2015 дата публикации

Rotary Machine

Номер: US20150030492A1

Автор: Curtis Warren Mullen, Darren Alan Esau, Greg John Montie, Jess Donald Lloyd Orton

Принадлежит: MONTIE POWER Corp

A rotary machine, for directing a quantity of fluid from an inlet to an outlet, comprises one or more elliptical or near-elliptical rotors having planetary rotation within a housing. The interior cavity of the housing comprises an inverse apex region that is in contact with the rotor during its rotation. In various embodiments the rotor and housing can be symmetric or asymmetric in cross-section. Features are described that can improve the operation of the machine for various end-use applications. Such features include cut-outs that are fluidly connected to the inlet or outlet ports of the machine, mechanisms for reducing variation in output flow rate from the rotary machine, linings for the interior cavity of the housing, pressure relief mechanisms, dynamic apex seals and other sealing mechanisms.

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Номер записи: 63

01-02-2018 дата публикации

LOW CREEP BEARING AND METHOD FOR INSTALLING IN SUPERCHARGER

Номер: US20180031041A1

Автор: BRADY JASON A

Принадлежит: EATON CORPORATION

A supercharger assembly comprises a housing, a shaft bore in the housing, a shaft extending into the shaft bore, wherein the shaft comprises an axis, and a bearing assembly located between the shaft bore and the shaft. The bearing assembly comprises an outer ring. The outer ring comprises an outer face. A grease is located between the outer face of the outer ring and the shaft bore. The grease has a viscosity greater than International Standards Organization Viscosity Grade 100. 1. A supercharger assembly comprising:a housing;a shaft bore in the housing;a shaft extending into the shaft bore, wherein the shaft comprises an axis; anda bearing assembly located between the shaft bore and the shaft, the bearing assembly comprising:an outer ring comprising an outer face;a grease located between the outer face of the outer ring and the shaft bore, wherein the grease has a viscosity greater than International Standards Organization Viscosity Grade 100.2. The supercharger assembly of claim 1 , further comprising a first o-ring and a second o-ring around the outer ring claim 1 , wherein the grease is located between the first o-ring and the second o-ring.3. (canceled)4. The supercharger assembly of claim 2 , further comprising a radial spring claim 2 , wherein the radial spring abuts either the first o-ring or the second o-ring.5. The supercharger assembly of claim 2 , wherein the grease is the only fluid located between the first o-ring and the second o-ring.6. The supercharger assembly of claim 2 , further comprising a bore lubricant located between the outer face of the outer ring and the shaft bore claim 2 , wherein the bore lubricant has a viscosity lower than the viscosity of the grease.7. (canceled)8. The supercharger assembly of claim 1 , further comprising:rolling elements between the outer ring and the shaft; anda bearing lubricant lubricating the rollers,wherein the bearing lubricant comprises a viscosity less than International Standards Organization Viscosity ...

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Номер записи: 64

17-02-2022 дата публикации

Controllable Screw Spindle Pump

Номер: US20220049697A1

Автор: Pawellek Franz

Принадлежит:

A controllable screw spindle pump for the lubricating oil supply of an internal combustion engine comprises a pump housing (), in which a throttle chamber () and a control chamber () are configured which are in contact with the lubricating oil to be conveyed; wherein the throttle chamber () is arranged between the pump inlet () and the spindle chamber (), and the throttle chamber () comprises a throttle valve (), by way of which a throughflow cross section of a conveying stream can be set; and the control chamber () comprises a hydraulic control valve () with a piston () which responds to a hydraulic control pressure (p p) in the control chamber (), and the control chamber () is oriented parallel to the spindle chamber () in relation to an actuating travel of the piston (); and a valve body () of the throttle valve () is coupled to the piston () of the hydraulic control valve (). 17-. (canceled)8. A controllable screw pump for supplying lubrication oil to a combustion engine , comprising:a pump housing with a spindle chamber as well as a pump inlet and a pump outlet communicating with the spindle chamber;at least two screw spindles rotatably accommodated in the spindle chamber, the screw spindles being driven by the combustion engine; whereininside the pump housing, a throttle chamber and a control chamber are provided, which are in contact with the lubrication oil to be conveyed; whereinthe throttle chamber is situated between the pump inlet and the spindle chamber, and the throttle chamber includes a throttle valve, via which a flow cross-section of a delivery flow is settable;the control chamber includes a hydraulic regulating valve with a piston that responds to a hydraulic control pressure inside the control chamber, and the control chamber is arranged in parallel to the spindle chamber with reference to a displacement of the piston; anda valve body of the throttle valve is coupled with the piston of the hydraulic regulating valve.9. The controllable screw pump ...

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Номер записи: 65

05-02-2015 дата публикации

DOUBLE-ENDED SCROLL COMPRESSOR LUBRICATION OF ONE ORBITING SCROLL BEARING VIA CRANKSHAFT OIL GALLERY FROM ANOTHER ORBITING SCROLL BEARING

Номер: US20150037184A1

Автор: Benco Michael Gerard, Heger Joseph M., Lepak Derrick, Novak Keith Adam, Rood Jerry Allen, Smerud Scott Joseph

Принадлежит:

A scroll compressor orbiting scroll bearing lubrication system includes a scroll compressor crankshaft having a lubricating fluid gallery extending therethrough between a first stage orbiting scroll and a second stage orbiting scroll. The first stage employs an orbiting scroll radial bearing and an orbiting scroll hydrodynamic thrust bearing, while the second stage employs an orbiting scroll radial bearing and an orbiting scroll hydrostatic thrust bearing. Lubricating fluid is supplied to the second stage orbiting scroll radial bearing via the lubricating fluid gallery. 1. A scroll compressor orbiting scroll bearing lubrication system , comprising:a lubricating fluid sump storing a lubricating fluid pressurized higher than the scroll compressor suction pressure; a first eccentric drive pin extending from a first end of the crankshaft, wherein the first drive pin is rotatably disposed at least partially within a first radial orbital bearing and configured to engage a first orbiting scroll comprising a baseplate and a spiral wrap element extending from the baseplate, and further comprising one or more oil passages in the baseplate;', 'a second eccentric drive pin extending from a second end of the crankshaft, wherein the second drive pin is rotatably disposed at least partially within a second radial orbital bearing and configured to engage a second orbiting scroll;, 'a compressor crankshaft comprisingan orbiting scroll hydrodynamic thrust bearing associated with the first orbiting scroll,wherein the first radial orbital bearing and the orbiting scroll hydrodynamic thrust bearing are configured to receive lubricating fluid from the lubricating fluid sump via the one or more oil passages in the first orbiting scroll baseplate;2. The scroll compressor orbiting scroll bearing lubrication system according to claim 1 , further comprising a bearing housing containing one or more oil supply passages claim 1 , wherein the first radial orbital bearing and orbiting scroll ...

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Номер записи: 66

05-02-2015 дата публикации

ORBITING CRANKSHAFT DRIVE PIN AND ASSOCIATED DRIVE PIN SLEEVE GEOMETRY

Номер: US20150037185A1

Автор: Benco Michael Gerard, Gorski Wayne Gerard, Novak Keith Adam, Rood Jerry Allen, Smerud Scott Joseph

Принадлежит:

A compressor crankshaft assembly includes a crankshaft and an eccentric drive pin extending from one end of the crankshaft. The shape of the drive pin viewed into the exposed end of the drive pin is defined by the intersection of a first cylinder that is coaxial with the axis of a substantially cylindrical orbital bearing journaled and installed to receive the eccentric drive pin and a second cylinder that is coaxial with the axis of a substantially cylindrical main bearing journaled and installed to rotatably receive the crankshaft, such that the area defined by the intersecting portion is less than the area defined by either cylinder. 1. A compressor crankshaft assembly comprising:a substantially cylindrical main bearing;a crankshaft rotatably disposed at least partially within the substantially cylindrical main bearing;a substantially cylindrical orbital bearing; andan eccentric drive pin extending from one end of the crankshaft and rotatably disposed at least partially within the substantially cylindrical orbital bearing, wherein the shape of the drive pin viewed into the exposed end of the drive pin is defined by the intersection of a cylinder that is coaxial with the axis of the orbital bearing and a cylinder that is coaxial with the axis of the main bearing such that the area defined by the intersecting portion is less than the area defined by either cylinder.2. The compressor crankshaft assembly according to claim 1 , further comprising an eccentric drive pin sleeve pressed claim 1 , or shrunk around claim 1 , or fixedly attached to the eccentric drive pin.3. The compressor crankshaft assembly according to claim 1 , further comprising an eccentric drive pin sleeve between the orbital bearing and the eccentric drive pin claim 1 , wherein the drive pin sleeve includes an inside surface shaped so as to receive the eccentric drive pin claim 1 , the inside surface being defined by the intersection of the cylinder that is coaxial with the axis of the orbital ...

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Номер записи: 67

05-02-2015 дата публикации

STRUCTURE FOR STABILIZING AN ORBITING SCROLL IN A SCROLL COMPRESSOR

Номер: US20150037186A1

Автор: Benco Michael Gerard, Lakowske Rodney, Rood Jerry Allen, Sauls John Robert, Smerud Scott Joseph

Принадлежит:

A scroll compressor includes one or more stage of compression disposed within a compressor housing. One or more of the stages includes a stationary scroll member including a base and a generally spiral wrap extending from the base of the stationary scroll member. One or more of the stages further includes an orbiting, scroll member including a substantially circular base and a substantially spiral wrap extending from the base of the orbiting scroll member. A coupling is disposed between the first scroll member base and the second scroll member base and in surrounding relationship to the first and second scroll member spiral wraps. At least one stabilizing pad is disposed between the first scroll member base and the second scroll member base and in axial thrust force relationship with the coupling to at least partially prevent tipping of the second scroll member. 1. A scroll compressor , comprising:a compressor housing; a first, stationary, scroll member comprising a base and a generally spiral wrap extending from the base of the first, stationary, scroll member; and', 'a second, orbiting, scroll member comprising a substantially circular base and a generally spiral wrap extending from the base of the second, orbiting scroll member;, 'an output stage of compression disposed within the compressor housing, the output stage comprisinga coupling disposed between the first scroll member base and the second scroll member base and in surrounding relationship to the first and second scroll member spiral wraps;the scroll compressor further comprising at least one of:one or more stabilizing pads disposed on the base of the first scroll member and configured to at least partially stabilize an axial thrust force between the coupling and the base of the first scroll member to at least partially prevent tipping of the second scroll member;one or more stabilizing pads disposed on the base of the second scroll member and configured to at least partially stabilize an axial thrust ...

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Номер записи: 68

05-02-2015 дата публикации

Vane pump assembly

Номер: US20150037188A1

Автор: Charles Tuckey

Принадлежит: Individual

An improved vane pump assembly is provided. The vane pump assembly includes a housing with an open chamber that is circular in shape when viewed in cross-section and has an inner wall that surrounds the open chamber. A rotor is rotatably disposed in the open chamber of the housing. As with the open chamber, the rotor is circular in shape when viewed in cross-section and has a diameter. The rotor further has at least one through-passage which extends diametrically across the rotor. The rotor is positioned such that it has a center that is offset from a center of the circular open chamber of the housing.

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Номер записи: 69

11-02-2016 дата публикации

Electric compressor

Номер: US20160040674A1

Автор: Hiroshi Fukasaku

Принадлежит: Toyota Industries Corp

An electric compressor includes a compression part, a motor that drives the compression part, a cylindrical housing that accommodates therein the compression part and the motor, a supporting member, and a first vibration damper. The supporting member supports the housing and is configured to be fixed to a target to which the compressor is attached. The first vibration damper is disposed between the housing and the supporting member so as to keep the housing free from contact with the supporting member and the target. The first vibration damper has therein a hollow enclosed space.

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Номер записи: 70

09-02-2017 дата публикации

TWO-LIQUID-TYPE, DOUBLE-ROW STRUCTURED TROCHOID PUMP FOR TRANSFERRING HIGH-VISCOSITY LIQUIDS UNDER HIGH PRESSURE

Номер: US20170037849A1

Автор: EOM Boon Do, KIM Hee Kyun

Принадлежит:

Disclosed is a two-liquid-type, double-row structured trochoid pump for transferring high-viscosity liquids under high pressure. A front body, a first housing, a center body, a second housing, and a rear body are successively coupled to form an outer body, and a first idler is coupled to an inside of the first housing. A first rotor is inserted into the first idler, a second idler is coupled to an inside of the second housing, and a second rotor is inserted into the second idler. A shaft is coupled to penetrate the front body, the first housing, the center body, the second housing, the rear body, and the first and second rotors, and the shaft is connected to an external electric motor. Accordingly, transfer equipment can be reduced in size and weight through reduction of an attachment and a controller, which constitute the transfer equipment, into one device. 1. A trochoid pump comprising:a front body having a first discharge port formed on an outer surface thereof, a first discharge flow path formed on an inside thereof to communicate with the first discharge port, a first through-hole formed in the center thereof, and a plurality of fastening holes formed on a circumference of the first through-hole;a first housing coupled to the front body and having both open ends and a path formed in the center thereof;a first idler rotatably inserted into the path of the first housing and having a gear groove formed on an inside thereof;a first rotor inserted into the gear groove of the first idler with a diameter that is smaller than the gear groove, and having a plurality of gears formed on an outer periphery thereof;a center body coupled to the first housing through one side thereof and having a second through-hole formed in the center thereof to coincide with the first through-hole;a second housing coupled to the other side of the center body and having both open ends and a path formed in the center thereof;a second idler rotatably inserted into the path of the second ...

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Номер записи: 71

07-02-2019 дата публикации

APPARATUS AND METHOD FOR INJECTING A FLUID FORMULATION INTO A MELTED POLYMERIC MATERIAL

Номер: US20190039276A1

Автор: Baker Harry, Campbell Ian, Jones Brian, Whitehead David

Принадлежит:

Injection apparatus for injecting a liquid formulation into a molten polymer at high pressure includes a reservoir containing liquid formulation at ambient temperature and pressure which is arrange to flood-feed pump body of a first progressing cavity pump (pep) . The first pep is driven by motor and is arranged to accurately meter the liquid formulation into a second pep which is downstream of the first pep and is arranged to increase the pressure of the liquid formulation by 200 bar or more. Downstream of pump is a delivery valve arranged to control passage of liquid formulation, via outlet , into pressurised molten polymer stream which is present in an extruder 1. Apparatus for injecting a fluid formulation into a melted polymeric material , the apparatus comprising a first progressing cavity pump (pcp) and a second pcp arranged in series in a fluid path upstream of an outlet of the apparatus.2. Apparatus according to claim 1 , wherein said first pcp is arranged to feed liquid formulation into an inlet of the second pcp at a pressure which is greater than atmospheric pressure and is less than 500 KPa.3. Apparatus according to claim 1 , wherein said second pcp includes a pump body having an internal volume which consists of the volume of the pump body upstream of a rotor and stator assembly of the second pcp which can contain liquid formulation introduced into the second pcp via its inlet claim 1 , said pump volume being less than 200 ml;wherein the length of the internal volume is less than 250 mm and the width is less than 75 mm; andwherein the pump body includes a link shaft operatively connected between a rotor/stator assembly of the second pcp and a motor of the pcp, wherein said link shaft has a width of less than 25 mm.4. (canceled)5. (canceled)6. (canceled)7. Apparatus according to claim 1 , wherein cavities of the first pcp and/or second pcp have a volume in the range 0.05 ml to 1.2 ml.8. Apparatus according to claim 1 , wherein said second pcp includes a ...

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Номер записи: 72

24-02-2022 дата публикации

ROTARY ENGINE, PARTS THEREOF, AND METHODS

Номер: US20220056802A1

Автор: Riley Matthew T.

Принадлежит:

A rotary engine, parts thereof, and methods associated therewith is provided. The engine is modular and adjustable to accommodate a variety of requirements and preferences. The system includes a combustion assembly having a housing and a power rotor positioned therein. The power rotor rotates in a first direction from the beginning of each combustion process through the end of each exhaust process. The system also includes a compression assembly linked to the combustion assembly such that the compression rotor rotates in the first direction from the beginning of each intake process through the end of each compression process. A tank assembly in fluid communication with the compression assembly and the combustion assembly provides stability to the system while eliminating or otherwise reducing transitional loses. 1. An internal combustion engine comprising:a compression assembly that is configured to compress working fluid;a combustion assembly defining a combustion chamber, the combustion assembly being configured to generate power from expansion of the working fluid within the combustion chamber during a power stroke of the engine; anda drive shaft extending through the combustion assembly,wherein each power stroke is greater than 180 degrees.2. The engine of claim 1 , wherein each power stroke is greater than 270 degrees.3. The engine of claim 1 , wherein the engine enables the ability to independently configure intake compression to power exhaust ratios during operation of the engine.4. The engine of claim 1 , wherein at least part of the power required for compressing the working fluid by the compression assembly is provided by expansion of the working fluid within the combustion assembly claim 1 , and wherein the compression assembly is out of sync with the combustion assembly such that each compression cycle of the compression assembly is initiated during a combustion cycle of the combustion assembly.5. The engine of claim 4 , wherein the compression assembly ...

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Номер записи: 73

18-02-2016 дата публикации

Internal Gear Pump

Номер: US20160046271A1

Автор: Alaze Norbert, Kurz Edgar, Schepp Rene, Speer Harald

Принадлежит:

An internal gear pump, in particular a hydraulic pump for a slip-controlled vehicle braking system, is configured to be pre-assembled. The internal gear pump includes a cartridge configured as a casing, which is configured to be inserted in a receptacle in a hydraulic block of a vehicle braking system. 1. An internal gear pump for a hydraulic vehicle brake system , comprising:a cartridge which is configured to act as a housing of the internal gear pump, and which is configured to be inserted into a receptacle for the internal gear pump;wherein the internal gear pump defines a premountable subassembly.2. The internal gear pump as claimed in claim 1 , further comprising:a pinion;a ring wheel; andan axial disk that is configured to laterally seal off a pump space defined by the internal gear pump, and that includes:an inside portion which bears against end faces of the pinion and of the ring wheel; andan outside portion facing away from the internal gear pump, which is exposed on the cartridge and which has a pressure field that enables a pressure connection of the internal gear pump.3. The internal gear pump as claimed in claim 1 , wherein:the cartridge further defines an orifice; andthe internal gear pump further defines a suction space that is open on one side and that is in communication with the orifice of the cartridge.4. The internal gear pump as claimed in claim 1 , wherein the receptacle for the internal gear pump is located in a surround housing.5. The internal gear pump as claimed in claim 4 , wherein the surround housing has a second receptacle for a second internal gear pump.6. The internal gear pump as claimed in claim 5 , wherein the internal gear pump has a common drive with the second internal gear pump. The invention relates to an internal gear pump for a hydraulic vehicle brake system, having the features of the preamble of claim . Such internal gear pumps are employed, instead of conventionally used piston pumps, in traction-controlled and/or power- ...

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Номер записи: 74

06-02-2020 дата публикации

Motor-operated compressor

Номер: US20200040893A1

Автор: Byeongchul Lee, Chuljig Bae, Jehoon Kim, Jongtae HER, Kitae JANG, Kyoungjun Park, Yongkyu Choi

Принадлежит: LG ELECTRONICS INC

A motor-operated compressor according to the present disclosure includes a first scroll performing an orbiting motion, a second scroll coupled to the first scroll to form a compression chamber with the first scroll and radially supporting a rotation shaft, a main housing coupled to the second scroll outside the second scroll, and coupled with a driving motor to form a motor chamber, the main housing including an opened end at one side of the motor chamber, a frame portion formed at another side of the motor chamber to axially support the second scroll, and a first bearing portion formed through the frame portion so that the rotation shaft is inserted therethrough to be radially supported, and an inverter housing coupled to the opened end of the main housing to seal the motor chamber, whereby a main frame can be easily formed and a compressor fabrication process can be simplified.

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Номер записи: 75

18-02-2021 дата публикации

VANE MOTOR

Номер: US20210047929A1

Автор: Brose Simon, Sawitzki Ewald

Принадлежит:

A vane motor with a rotor body driven by compressed air having vane gaps for radially movable vanes and a rotor shaft for rotatably bearing the rotor body relative to a motor bushing. A method for lubricating a vane motor that ensures particularly long, low-service operation is provided. The rotor shaft is configured as a hollow shaft with a first lubricant reservoir in the interior. The first lubricant reservoir has a lubricant filling opening accessible from the outside of the vane motor. The first lubricant reservoir is connected by at least one radial lubricant hole to at least one further lubricant reservoir arranged in a section of the rotor body between two vane gaps, and/or is connected to an outlet opening arranged in one of the vane gaps for supplying lubricant into the vane gap. 2. The vane motor according to claim 1 , wherein a further lubricant reservoir is arranged in at least one section of the rotor body between two vane gaps and has at least one outlet opening for lubricant onto a surface of the rotor body.3. The vane motor according to claim 1 , wherein the outlet opening of the further lubricant reservoir is arranged on at least one face of the rotor body.4. The vane motor according to claim 1 , wherein all outlet openings of the further lubricant reservoir are closed with a sintering material or a membrane material through which the lubricant can pass.5. The vane motor according to claim 1 , wherein at least two lubricant reservoirs are arranged opposite each other in the rotor body relative to the rotor shaft claim 1 , wherein a lubricant reservoir is preferably arranged in each section of the rotor body between two vane gaps.6. The vane motor according to claim 1 , wherein just one of the at least one radial lubricant holes is connected to an outlet opening arranged in one of the vane gaps for supplying lubricant into the vane gap.7. The vane motor according to claim 1 , wherein the first lubricant reservoir extends over the entire length of ...

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Номер записи: 76

18-02-2021 дата публикации

High pressure pumping system

Номер: US20210048023A1

Автор: Andrew Anderson, Cameron Neff, Josh Gerbig, Justin Pierce, Michael R. Crawford, Scott Meyer

Принадлежит: Viking Pump Inc

A pump technology that provides for more effective and efficient transfer of liquids, such as petroleum products and components, to and through pipelines. Such a technology can comprise a type of external gear pump that creates higher flow, resulting in higher pressures in the pipeline, to move the liquids, while providing for longer pump life, simpler and less maintenance, and fewer undesired conditions, with a smaller footprint, in a cost-effective system. Further, one or more portions of the pump can be configured to be easily replaceable to provide for maintenance in place, and provide for longer pump life. Additionally, one or more portions of the pump can be constructed with or coated with abrasive resistant material that extends the life of the external gear pump. Such material can also reduce the friction between surfaces and improve the life of the external gear pump under poor feeding conditions.

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Номер записи: 77

18-02-2016 дата публикации

Compressor

Номер: US20160047381A1

Автор: Hiroshi Kitaura, Kouji Tanaka, Yasuhiro Murakami, Yuuta OKAMURA

Принадлежит: Daikin Industries Ltd

A compressor includes a compression mechanism and a drive shaft having an oil supply hole opened through an outer peripheral surface of the drive shaft to supply oil to a bearing surface of the drive shaft. An oil discharge passage communicating with the oil supply hole is formed by a flat surface or a recessed surface at a portion of the outer peripheral surface of the drive shaft. A trailing edge of the oil discharge passage is displaced behind a trailing edge of the oil supply hole with respect to a rotation direction of the drive shaft. A leading edge of the oil discharge passage is displaced behind a leading edge of the oil supply hole with respect to the rotation direction of the drive shaft. The oil discharge passage has a width that is no larger than a diameter of the oil supply hole.

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Номер записи: 78

16-02-2017 дата публикации

MOTOR/ENGINE WITH ROTATING PISTONS

Номер: US20170044899A1

Автор: Hicks Edward Alan

Принадлежит:

Aspects of the present disclosure are directed to apparatuses and methods involving an engine and/or motor having piston lobes that rotate with a drive shaft or shafts, which may be implemented with a toroidal-based engine housing. As may be implemented with some embodiments, an apparatus includes drive shafts having a common axis of rotation, with each drive shaft operable to rotate independently of the other drive shaft. The housing extends around the drive shafts, and defines a sidewall of a chamber having inlet and exhaust ports. Clutch bearings limit rotation of the drive shafts to a common rotational direction. One or more piston lobes are connected to each drive shaft, with each piston lobe being disposed within the chamber and operable to move circumferentially within the chamber about the axis of rotation, with the drive shaft to which it is coupled. 1. An apparatus comprising:first and second drive shafts having a common axis of rotation, each drive shaft being configured and arranged to rotate independently of the other drive shaft;a housing around the drive shafts, the housing defining a sidewall of a chamber having inlet and exhaust ports; and a respective clutch bearing connected to the drive shaft and configured and arranged to limit rotation of the drive shaft to a rotational direction that is the same for both drive shafts, and', 'at least one piston lobe connected to the drive shaft, each piston lobe disposed within the chamber and configured and arranged to move circumferentially within the chamber and about the axis of rotation with the drive shaft, each piston lobe having a magnet, the magnets of adjacent ones of the piston lobes having polarities that provide a magnetic field that generates a magnetic force in a direction that acts to repel the adjacent ones of the piston lobes away from one another., 'for each drive shaft,'}2. The apparatus of claim 1 , wherein a leading surface of each piston lobe forms an enclosed portion of the chamber ...

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Номер записи: 79

16-02-2017 дата публикации

GEAR PUMP INTENDED, IN PARTICULAR, AS A HIGH PRESSURE FUEL PUMP

Номер: US20170044986A1

Автор: Vertenoeuil Philippe, Waissi Bellal

Принадлежит:

A geared fuel pump () operates to supply a determined flow but at low or zero pressure rise. It is planned to add gland packing () between support bearings () of the pinions (), or between some of them, to provide hydrodynamic lift for these bearings, by delimiting a closed cavity () to provide lift by a fluid with better viscosity properties instead of using the fluid itself that is pumped. Possible application to fuel pumps for aircraft engines, in which the pump () is a high pressure pump associated with a low pressure pump. 115-. (canceled)164241112171813141920151617189192010461920111247102419201112. Gear fuel pump (′) comprising a housing () , two pinions ( , ) meshing with each other in a chamber of the housing , two first bearings ( , ) each supporting one of two first stubshafts ( , ) of the pinions , two second bearings ( , ) each supporting one of two second stubshafts ( , ) of the pinions , the first bearings and the second bearings being housed in the chamber in the case , the first stubshafts turning in the first bearings ( , ) with first gaps () and the second stubshafts turning in the second bearings ( , ) with second gaps () , the first and the second gaps containing fluid hydrodynamic lift layers , characterised in that it comprises gland packing () between the second bearings ( , ) and the gearwheels ( , ) , said packing isolating closed cavities () surrounding the second gaps () and delimited by the case () , the second bearings ( , ) and the pinions ( , ) , the closed cavities containing a fluid different from a fluid , that is a fuel , pumped by the pinions.17. Gear pump according to claim 16 , characterised in that the viscosity properties of the fluid in the closed cavities are different from the properties of the fuel.1847. Gear pump according to claim 16 , characterised in that the fluid in the closed cavities () is rheo-thickening19243024. Gear pump according to claim 16 , characterised in that either the first bearings or the second ...

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Номер записи: 80

03-03-2022 дата публикации

METHOD AND SCREW SPINDLE PUMP FOR DELIVERING A GAS/LIQUID MIXTURE

Номер: US20220065247A1

Автор: MAURISCHAT Roland

Принадлежит:

A method for delivering a gas/liquid mixture fluid via a screw spindle pump that has a housing forming at least one fluid inlet and one fluid outlet and in which a drive spindle and a running spindle, coupled in terms of rotation, are accommodated. The spindles, in each rotation position of the drive spindle, delimit together with the housing multiple pump chambers. The drive spindle is rotated by a drive in a drive direction, whereby a respective one of the pump chambers that is initially open toward the respective fluid inlet is closed off. The resulting closed-off pump chamber is moved axially toward the fluid outlet and, there, upon attainment of an opening rotation angle, is opened toward the fluid outlet. The drive spindle is driven so that, for a given pump geometry of the screw spindle pump, the pressure in the respective pump chamber prior to and/or upon attainment of the opening rotation angle is increased in relation to the suction pressure of the screw spindle pump, which prevails in the region of the respective fluid inlet, by at most 20% or by at most 10% of a difference in pressure between the suction pressure and the pressure in the region of the fluid outlet. 1. A method for delivering a fluid which is a gas/liquid mixture by way of a screw spindle pump , said screw spindle pump having a housing which forms at least one fluid inlet and one fluid outlet and in which at least one drive spindle and at least one running spindle , coupled in terms of rotation to the latter , of the screw spindle pump are accommodated , which spindles , in each rotation position of the drive spindle , delimit together with the housing multiple pump chambers , wherein the drive spindle is rotated by a drive in a drive direction , whereby a respective one of the pump chambers that is initially open toward the respective fluid inlet is closed off , the resulting closed-off pump chamber is moved axially toward the fluid outlet and , there , upon attainment of an opening ...

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Номер записи: 81

08-05-2014 дата публикации

Screw Compressor

Номер: US20140127067A1

Автор: Kienzle Dominic

Принадлежит: Bitzer Kuehlmaschinenbau GmbH

In order to improve a screw compressor comprising a screw compressor housing having a screw rotor housing, screw rotor bores arranged in the screw rotor housing, screw rotors arranged in the screw rotor bores and mounted in the screw rotor housing for rotation about rotational axes, a drive for the screw rotors, and a slider which is guided for displacement in a slider receptacle in the screw rotor housing and is, in areas, in adjacent relation to the screw rotors with end faces, for adjusting a volume ratio of the screw compressor and which, starting from an insertion space of the slider receptacle, extends in a direction towards the high-pressure outlet in a guide trough of the slider receptacle that is open towards the screw rotor bores and which is capable of being positioned in a first position and a second position, wherein the volume ratio of the screw compressor is greater in one of the positions than in the other of the positions, in such a manner that it requires as small an installation space as possible for actuation of the slider, it is proposed that the slider be connected to a first cylinder element which is at least partially arranged in the insertion space and cooperates with a second cylinder element which is at least partially arranged in the insertion space and that the cylinder elements be arranged following the slider in the displacement direction thereof on a side of the slider that is opposite the high-pressure outlet. 1. Screw compressor comprising a screw compressor housing having a screw rotor housing , screw rotor bores arranged in the screw rotor housing , screw rotors arranged in the screw rotor bores and mounted in the screw rotor housing for rotation about rotational axes , a drive for the screw rotors , and a slider which is guided for displacement in a slider receptacle in the screw rotor housing and is , in areas , in adjacent relation to the screw rotors with end faces , for adjusting a volume ratio of the screw compressor and ...

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Номер записи: 82

25-02-2021 дата публикации

OIL PUMP FOR AN AGED ENGINE

Номер: US20210054840A1

Автор: FIGGE Kyle, KLEMP Mathias, KUMAR Vijaya, MCWADE Patricia, NAIR Adarsh Gopinathan

Принадлежит: Progress Rail Locomotive Inc.

An oil pump for an engine is disclosed. The oil pump may include a first pump mechanism configured to supply oil to a main lubrication gallery of the engine, and a second pump mechanism configured to supply oil to a piston cooling gallery of the engine. The first pump mechanism may be designed for a first type of engine and the second pump mechanism may be designed for a second type of engine. The first type of engine may have a greater quantity of cylinders than the second type of engine. 1. An oil pump for an engine , comprising:a first pump mechanism, located in a first housing, configured to supply oil to a main lubrication gallery of the engine;a second pump mechanism, located in a second housing, configured to supply oil to a piston cooling gallery of the engine;a separation plate disposed between the first housing and the second housing; and 'the first type of engine having a greater quantity of cylinders than the second type of engine.', 'the first pump mechanism being designed for a first type of engine and the second pump mechanism being designed for a second type of engine,'}, 'a spacer plate associated with the second pump mechanism abutting the separation plate,'}2. The oil pump of claim 1 , wherein the first type of engine has a greater maximum power output than the second type of engine.3. The oil pump of claim 1 , wherein the first type of engine has greater than 16 cylinders claim 1 , and the second type of engine has 16 cylinders or fewer.4. The oil pump of claim 1 , wherein the first pump mechanism is a first set of gears comprising a first and second drive gear claim 1 , and the second pump mechanism is a second set of gears comprising a third drive gear.5. The oil pump of claim 4 , wherein the first and second drive gear has a greater gear width than the third drive gear.6. The oil pump of claim 4 , wherein the first set of gears includes 4 gears claim 4 , and the second set of gears includes 2 gears.7. The oil pump of claim 1 , wherein the ...

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Номер записи: 83

23-02-2017 дата публикации

ROTARY COMPRESSOR

Номер: US20170051739A1

Автор: MORISHITA Taku

Принадлежит: FUJITSU GENERAL LIMITED

In a rotary compressor, when it is assumed that a vane width is W, the amount of eccentricity of an eccentric portion is e, a vane leading end curvature radius is R, an annular piston radius is R, and a non-sliding region width on each of both side portions of a vane leading end is W, the vane width W and the vane leading end curvature radius Rare set such that the non-sliding region width Won each of both the side portions of the vane leading end defined by the following equation (A) is a value satisfying an equation (B): 1. A rotary compressor comprising:a vertically placed and sealed compressor housing including a discharge portion of a refrigerant on an upper portion and a suction portion of the refrigerant on a lower side surface;a compression unit arranged on a lower portion of the compressor housing and including an annular cylinder, an end plate that has a bearing portion and a discharge valve portion and closes one end portion of the cylinder, an end plate or an intermediate partition plate that has a bearing portion and closes the other end portion of the cylinder, an annular piston that is fitted into an eccentric portion of a rotating axis supported on the bearing portion, revolves in the cylinder along a cylinder inner wall of the cylinder, and forms an operation chamber between the annular piston and the cylinder inner wall, and a vane that projects into the operation chamber from a vane groove provided in the cylinder, abuts against the annular piston, and divides the operation chamber into a suction chamber and a compression chamber; anda motor that is arranged on an upper portion of the compressor housing and drives the compression unit through the rotating axis,the rotary compressor sucking the refrigerant through the suction portion and discharging the refrigerant after passing through the compressor housing from the discharge portion, wherein{'sub': v', 'ro', 't', 'v', 't, 'claim-text': [{'br': None, 'i': W', 'W/', 'e×R', 'R', '+R, 'sub': t', 'v ...

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Номер записи: 84

15-05-2014 дата публикации

Immersion Pump and Method for Assembling an Immersion Pump

Номер: US20140134013A1

Автор: Fath Michael, Jaeger Chirstoph, Werner Boris

Принадлежит: KSB Aktiengesellschaft

An immersion pump is provided, the pump having an integral housing with an inlet opening on an intake side, an outlet opening on a delivery side, a passage for electrical lines, an electronic unit for processing power and optionally information signals, an electric motor, a pressure chamber and a pump unit. The electronic unit, the electric motor, the pressure chamber and the pump unit may be pre-assembled to an insert, with the pre-assembled insert being supported on one end of the housing. An axial clamping and/or fastening system, in particular a tapered locking arrangement, is provided on the opposite end of the housing. 110-. (canceled)11. A submersible pump , comprising:a casing having a suction-side inlet opening, a pressure-side outlet opening and a through-passage for electric lines;an electronics unit;an electric motor;a pressure chamber;a pump unit; anda securing assembly, the electric motor is arranged to drive the pump unit,', 'the electronics unit at least one of controls electric power for driving the electric motor and processes information signals,', 'the electronics unit, the electric motor, the pressure chamber and the pump unit are configured for assembly into a preassembled insert configured to be introduced into the casing and supported at a first end of the casing, and', 'the securing assembly is at least one of an axial clamping and fastening system configured to be located at a second end of the casing opposite the first end, and is arranged to secure and apply a prestress to the preassembled insert in the casing., 'wherein'}12. The submersible pump as claimed in claim 11 , wherein the securing assembly is releasable from the casing.13. The submersible pump as claimed in claim 12 , wherein that the securing assembly includes a taper lock clamping bushing.14. The submersible pump as claimed in claim 11 , wherein at least one of the electronics unit claim 11 , the electric motor claim 11 , the pressure chamber and the pump unit is provided ...

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Номер записи: 85

10-03-2022 дата публикации

VACUUM PUMP

Номер: US20220074407A1

Автор: Kabasawa Takashi

Принадлежит:

A pressure difference of liquid is generated between an upper end and a lower end of a thread groove by the action of a thread groove pump formed between the thread groove and a lower end wall portion of a rotating rotor shaft. As a result, liquid of a bottom space is sucked up and passes through a hollow hole and is discharged to the outside of the rotor shaft through communication holes. The discharged liquid passes through the inside of a hub of a rotating body and reaches an extension member where it is sprayed radially in the form of droplets from a protrusion. The droplets are received by a partition wall. Due to the presence of a protrusion in an upper portion of the partition wall, the droplets cannot cross over the partition wall. The accumulated liquid drops through a communication hole to the bottom space. 1. A vacuum pump , comprising:a rotor blade;a rotor shaft fixed to the rotor blade and having a communication passage by which a shaft end and a shaft outer peripheral portion are communicated with each other;a magnetic bearing supporting the rotor shaft in a levitated manner in the air;a rotary drive means for driving the rotor shaft to rotate;a liquid storage portion in which liquid is stored; anda liquid transport mechanism that sends out the liquid stored in the liquid storage portion from the shaft outer peripheral portion through the communication passage in response to rotary drive of the rotary drive means.2. The vacuum pump according to claim 1 , whereinthe liquid transport mechanism includes an insertion member inserted into the communication passage of the shaft end of the rotor shaft, anda spiral groove formed on either a peripheral wall around the shaft end of the rotor shaft or the insertion member.3. The vacuum pump according to claim 1 , wherein the liquid transport mechanism includes a tapered peripheral wall formed around the communication passage of the shaft end of the rotor shaft.4. The vacuum pump according to claim 1 , wherein an ...

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Номер записи: 86

03-03-2016 дата публикации

Screw Pump with Vapor Barrier

Номер: US20160061200A1

Автор: Christov Weshen, Jung Hans

Принадлежит: JUNG & CO. GERATEBAU GMBH

A dual-spindle screw pump having a pump housing () for a medium to be conveyed, in particular a foodstuff, which has a pump section (), at least one bearing section () and at least one gear section (), wherein the at least one bearing section () and the pump section () are constructed separately from one another, wherein the pump section is a product chamber () through which the medium is conveyed, having a conveyor housing part () as a constituent part of the pump section () in which two conveying screws () that are arranged on shafts () are provided, having at least one feed section () and at least one removal section () as constituent parts of the pump section (), preferably each having a connection flange (), wherein the product chamber () has at least one parting line () having a connection to the surrounding atmosphere (), which is provided with a vapor barrier () having a groove () as the vapor channel (), characterized in that there is provided in the groove () at least one seal () which seals the vapor channel () off from the product chamber () and from the surrounding atmosphere (). 1. A dual-spindle screw pump having a pump housing for a medium to be conveyed , in particular a foodstuff , which has a pump section , at least one bearing section and at least one gear section , wherein the at least one bearing section and the pump section are constructed separately from one another , wherein the pump section is a product chamber through which the medium is conveyed , having a conveyor housing part as a constituent part of the pump section in which two conveying screws that are arranged on shafts are provided , having at least one feed section and at least one removal section as constituent parts of the pump section , wherein the product chamber has at least one parting line having a connection to the surrounding atmosphere , and a vapor barrier having a groove as the vapor channel , the groove comprising at least one seal which seals the vapor channel off ...

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Номер записи: 87

01-03-2018 дата публикации

Rotary Device Having a Circular Guide Ring

Номер: US20180058448A1

Автор: Masse Andrew, Patterson Dan

Принадлежит:

A rotary device for use with a fluid includes a housing, a rotor, a ring, and at least one vane. The housing includes a tubular surface defining, in part, a tubular volume. The housing is segregated into at least a pumping zone positioned between first and second working zones. The first working zone is configured to receive a fluid and the second working zone is configured to output the fluid. The rotor is mounted for rotation about a rotation axis. The rotor includes a body mounted within the tubular volume. The body includes a plurality of slots. The ring is at least indirectly coupled to the housing by way of a bearing. The at least one vane is associated with one slot of the plurality of slots. The at least one vane is connected at least indirectly to the ring and configured to rotate within the tubular volume. 1. A rotary device for use with a fluid , the rotary device comprising:a housing having a tubular surface defining, in part, a tubular volume, the housing segregated into at least a pumping zone positioned between first and second working zones, the first working zone configured to receive a fluid and the second working zone configured to output the fluid;a rotor mounted for rotation about a rotation axis, the rotor having a body mounted within the tubular volume and having a plurality of slots;a ring at least indirectly coupled to the housing by way of a bearing; andat least one vane associated with one slot of said plurality of slots, said at least one vane connected at least indirectly to the ring and configured to rotate within the tubular volume.2. The rotary device of claim 1 , further comprising a bearing coupled to the housing and positioned to support the ring claim 1 , the bearing configured to rotate about a bearing axis and maintain a position of the ring with respect to the housing as the ring rotates.3. The rotary device of claim 2 , wherein the ring includes an outer surface in contact with an outer surface of the bearing.4. The rotary ...

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Номер записи: 88

02-03-2017 дата публикации

Dual pump system for automatic transmission augmentation, extended stop and start, and sailing

Номер: US20170058895A1

Автор: John C. Schultz, Ted T. Selever

Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A dual pump system for a motor vehicle transmission includes a first pump connected to and co-rotated with a pump shaft rotated during operation of a motor vehicle engine. A second pump is connected to a motor shaft of an electric motor. A one-way roller clutch is connected to the second pump and to the pump shaft. The one-way roller clutch is configured to allow the faster rotated one of the pump shaft or the motor shaft to drive the second pump. The pump shaft and the motor shaft can be co-axially aligned or positioned off-axis with respect to each other.

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Номер записи: 89

04-03-2021 дата публикации

Rotary Machine With Pressure Relief Mechanism

Номер: US20210062655A1

Автор: Montie Greg John, MULLEN Curtis Warren

Принадлежит:

A rotary machine, for directing a quantity of fluid from an inlet to an outlet, comprises one or more elliptical or near-elliptical rotors having planetary rotation within a housing. The interior cavity of the housing comprises an inverse apex region that is in contact with the rotor during its rotation. In various embodiments the rotor and housing can be symmetric or asymmetric in cross-section. Features are described that can improve the operation of the machine for various end-use applications. Such features include cut-outs that are fluidly connected to the inlet or outlet ports of the machine, mechanisms for reducing variation in output flow rate from the rotary machine, linings for the interior cavity of the housing, pressure relief mechanisms, dynamic apex seals and other sealing mechanisms. 1. A rotary pump comprising:(a) a rotor comprising an outer surface having an elliptical cross-section;(b) a crankshaft for providing rotational force to rotate said rotor about a first axis of rotation at a first angular velocity; (i) rotation of said crankshaft about said first axis of rotation induces rotation of said rotor about an instantaneous second axis of rotation at a second angular velocity proportional to said first angular velocity, said instantaneous second axis of rotation positioned at a fixed distance from said first axis of rotation; and', '(ii) said instantaneous second axis of rotation orbits about said first axis of rotation at said first angular velocity;, '(c) a mechanical coupling between said crankshaft and said rotor, said mechanical coupling configured such that(d) a housing having an inlet and an outlet formed therein, said housing having an interior cavity within which said rotor is configured to rotate, said interior cavity comprising an inner surface;wherein said interior cavity is substantially circular in cross-section and comprises an interiorly-extending inverse apex region between said inlet and said outlet, and wherein during rotation ...

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Номер записи: 90

20-02-2020 дата публикации

Vane pump

Номер: US20200056611A1

Автор: Akihiro Uto, Akira Fujii, Hiroki Hara, Naoyuki Miyara, Shinsuke Kiyomiya, Yuji Suzuki

Принадлежит: Taiho Kogyo Co Ltd, Toyota Motor Corp

A vane pump including a housing having a peripheral wall portion, a bottom wall portion, and a pump chamber; a rotor disposed in the pump chamber to be rotatable; a vane disposed to be slidable in the radial direction with respect to the rotor and partitioning the pump chamber into working chambers; and a reed valve that opens and closes a discharge hole of the bottom wall portion. A pressure relief groove is disposed in a portion of the bottom wall portion corresponding to the discharge section with a clearance secured between the peripheral wall portion and the pressure relief groove. When the vane overlaps the pressure relief groove, a pair of the working chambers on both sides of the vane in the rotational direction communicates with each other via the pressure relief groove.

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Номер записи: 91

22-05-2014 дата публикации

COOLING SYSTEMS FOR ROTARY ENGINES

Номер: US20140140878A1

Автор: Cardozo Gilo

Принадлежит: Gilo Industries Research Ltd.

Cooling systems for rotary internal combustion engines. Air through-rotor cooling is provided by a closed-loop cooling system with an output shaft-driven fan. Liquid cooling is provided utilizing a cooling chamber within the output shaft. 1. A rotary internal combustion engine , comprisinga closed-loop cooling system having a closed-loop fluid flow path through the interior of a rotor of the engine and a heat exchanger; anda fan configured to circulate a fluid around the flow path,wherein the fan is mounted on and driven directly by the engine's output shaft.2. An engine according to claim 1 , wherein the fluid is a gas.3. An engine according to claim 2 , wherein the gas is gas which has blown-past the rotor's side-seals.4. An engine according to claim 1 , wherein the fan is a centrifugal fan.5. An engine according to claim 1 , wherein the fan has a diameter of 160 mm or greater.6. An engine according to claim 1 , wherein the closed-loop cooling system comprises a pressure-relief valve configured to limit the maximum pressure in the closed-loop fluid flow path.7. An engine according to claim 1 , wherein the closed-loop cooling system comprises an oil injector for injecting oil into gas flowing in the closed-loop fluid flow path for lubricating the interior of the rotor.8. An engine according to when dependent on claim 1 , wherein a vent outlet of the pressure-relief valve is fluidly coupled to a reservoir of the oil injector.9. A rotary internal combustion engine claim 1 , comprisingan output shaft having an internal cooling chamber with a closed distal end within the output shaft, and an open proximal end at an end of the output shaft;a tube within the cooling chamber spaced from the internal wall of the cooling chamber and from the distal end of the cooling chamber, the tube and cooling chamber forming a cooling flow-path through the centre of the tube, between the end of the tube and the distal end of the cooling chamber, and between the exterior surface of the ...

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Номер записи: 92

29-05-2014 дата публикации

Hydrodynamic gear assembly

Номер: US20140144268A1

Автор: Lyle Ward

Принадлежит: Hamilton Sundstrand Corp

A gear assembly includes a first gear having a first pitch diameter and a second gear having a second pitch diameter different than the first pitch diameter. The first and second gears are located in a housing bore having a cusp line between first and second sections of the housing bore corresponding to the first and second gears. A first gear bearing is located in the first section of the housing bore and has a first flat side. A second gear bearing is located in the second section of the housing bore and has a second flat side. The second flat side is configured to press against the first flat side along the cusp line of the gear housing based on a pressurized fluid being provided to the housing bore.

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Номер записи: 93

08-03-2018 дата публикации

Rotary Engine

Номер: US20180066520A1

Автор: Shkolnik Alexander, Shkolnik Nikolay

Принадлежит:

A rotary engine includes an intake port, an exhaust port, a rotor having an intake channel and/or an exhaust channel, and a rotor shaft coupled to the rotor. The rotor shaft has an inflow channel in communication with the intake channel and/or an outlet channel in communication with the exhaust channel. The rotary engine includes a housing having a working chamber formed between the housing and the rotor, the working chamber configured to handle, in succession, an intake phase, a compression phase, a combustion phase, an expansion phase, and an exhaust phase. The inflow channel cyclically communicates with the intake port and forms a passage between the intake port and the working chamber through the rotor shaft and the intake channel. The outlet channel cyclically communicates with the exhaust port and forms a passage between the exhaust port and the working chamber through the rotor shaft and the exhaust channel. 1. A rotary engine having an intake port and an exhaust port , the engine comprising:a rotor having an intake channel;a rotor shaft coupled to the rotor, the rotor shaft having an inflow channel in communication with the intake channel in the rotor; anda housing having (i) a pair of sides axially disposed on first and second sides of the rotor, and (ii) a working chamber formed between the housing and the rotor, wherein the working chamber is configured to handle, in succession, an intake phase, a compression phase, a combustion phase, an expansion phase, and an exhaust phase;wherein, as the rotor rotates relative to the housing, the inflow channel cyclically communicates with the intake port and forms, during the intake phase, a passage between the intake port and the working chamber through the rotor shaft and the intake channel.2. The rotary engine of claim 1 , wherein the rotor shaft is rigidly coupled to the rotor.3. The rotary engine of claim 1 , further comprising an eccentric input/output shaft configured to translate orbiting motion of the rotor ...

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Номер записи: 94

12-03-2015 дата публикации

Fluid displacement system using gerotor pump

Номер: US20150071795A1

Автор: Alexandra del Carmen Araujo Anez, Raimundo Pardo Vazquez, Sergio Arturo Caicedo Sandgren

Принадлежит: Intevep SA

A fluid displacement system for a fluid producing subterranean well includes a well extending from a surface to a subterranean fluid bearing formation, the formation being in fluid communication with the well; and a gerotor pump in the well for pumping fluid from the formation to the surface.

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Номер записи: 95

12-03-2015 дата публикации

Rotary Vane Air Motor with Improved Vanes and Other Improvements

Номер: US20150071806A1

Автор: Cox Daniel S., Liang Davey Z.

Принадлежит:

A rotary vane air motor comprises a rotor, stator and vanes. The rotor has slots for the vanes, and the vanes may move between a retracted position and a contact position in which the vanes contact the cylinder. Each vane may have a longitudinal portion whose shape conforms generally to the slot, and a transverse portion that is radially outside of the slot and extends at least in part in a direction that is transverse to the longitudinal portion and that may be tangential to the perimeter of the rotor at the slot. The shape of the perimeter may be a polygon with rounded corners. The vanes may also include a magnetic portion or a rotating portion. 1. A pneumatic motor comprising:a stator;a rotor disposed such as to define a gap between the rotor and the stator, and disposed for rotation with respect to the stator, the rotor having openings extending in a radial direction of the rotor; anda plurality of vanes disposed in the openings, respectively, each of the vanes being moveable in the radial direction within the respective opening thereof between a contact position, wherein the vane contacts the stator, and a non-contact position, wherein the vane does not contact the stator, wherein the rotor is configured for rotation with respect to the stator by air flow against the vanes, and wherein each of the vanes includes a portion that is permanently located in the gap and does not retract into the respective opening thereof.2. A pneumatic motor according to claim 1 , wherein each opening extends in a radial direction of the rotor claim 1 , an axial direction of the rotor claim 1 , and an orthogonal direction claim 1 , the orthogonal direction being orthogonal to the radial direction and to the axial direction claim 1 , and wherein claim 1 , for each of the vanes claim 1 , the portion that is permanently located in the gap and does not retract into the respective opening thereof has an extent in the orthogonal direction different from an extent in the orthogonal ...

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Номер записи: 96

27-02-2020 дата публикации

SEALING MEMBER

Номер: US20200063560A1

Автор: Itadani Masatoshi, Tokunaga Yuichiro, YOSHINO Akira

Принадлежит:

In an exemplary embodiment, a sealing member is provided between a rotating body rotating while whirling within an accommodating chamber partitioned by a housing and a side wall of the accommodating chamber and has a sliding surface S sliding on the side wall and the sliding surface S includes a first lubrication mechanism arranged on one side in the longitudinal direction, and a second lubrication mechanism arranged on the other side in the longitudinal direction and exhibiting lubrication performance in a sliding direction different from that of the first lubrication mechanism thereby improving sealing performance of the sealing member. 1. A sealing member provided between a rotating body rotating while whirling within an accommodating chamber partitioned by a housing and a side wall of the housing and having a sliding surface sliding on the side wall , characterized in that:the sliding surface includes a first lubrication mechanism arranged on one side in a longitudinal direction, and a second lubrication mechanism arranged on the other side in the longitudinal direction and exhibiting lubrication performance in a sliding direction different from that of the first lubrication mechanism.2. The sealing member according to claim 1 , characterized in that:the first lubrication mechanism and the second lubrication mechanism have a closing wall part closing at least one side and an opening part opening the other side; andthe first lubrication mechanism includes a first opening part facing an outer side in a radial direction of the rotating body and the second lubrication mechanism includes a second opening part facing an inner side in the radial direction of the rotating body.3. The sealing member according claim 1 , characterized in that:the first lubrication mechanism and the second lubrication mechanism have a closing wall part closing at least one side and an opening part opening the other side; andthe first lubrication mechanism includes a first opening part ...

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Номер записи: 97

27-02-2020 дата публикации

Displacement pump

Номер: US20200063743A1

Автор: Naohiro KOKURA

Принадлежит: Tatsuno Corp

To provide a displacement pump that can be assembled while properly maintaining side clearances. The displacement pump (100, 101, 102, 103, 104, 105) of the present invention for sucking and discharging a fluid such as gasoline vapor by changing pressure in a space constituted by an outer peripheral surface of a rotor (1) and an inner wall surface of a casing (2), comprising a side clearance adjusting member (4), rotating with respect to the pump main body (6), for moving a shaft (3) integrally formed with the rotor (1) in an axial direction of the shaft (3).

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Номер записи: 98

15-03-2018 дата публикации

RECESS-MOUNTED HYDRAULIC PUMP CARTRIDGE AND WORK VEHICLE DRIVETRAIN THEREWITH

Номер: US20180072147A1

Автор: Butts Thomas, Winhold Matthew B.

Принадлежит:

A hydraulic pump is configured to mount within an internal receptacle defined by a housing of a hydraulically-powered component of a work vehicle. The pump has a housing defining one or more pump chambers. Each pump chamber communicates with a suction port and an outlet pressure port. Each pump chamber contains a pump assembly having a drive member at a fluid interface between the suction port and the outlet pressure port. The drive member is arranged for co-rotation with at least one power input component extending into the housing through each pump chamber. Rotation of each drive member displaces and pressurizes hydraulic fluid through the pump housing, and, when the pump is mounted within the internal receptacle, through internally ported passages routed through walls of the hydraulically-powered component housing. 1. A hydraulic pump mountable within an internal receptacle defined by a housing of a hydraulically-powered component of a work vehicle , the pump having a housing defining one or more pump chambers , the one or more pump chambers communicating with an associated suction port and an associated outlet pressure port and containing an associated pump assembly , the associated pump assembly having an associated drive member arranged for co-rotation with at least one power input component extending into the housing to rotate the associated drive member and effect displacement of hydraulic fluid at a fluid interface between the associated suction port and the associated outlet pressure port;wherein rotation of the drive member drives the associated pump assembly to displace and pressurize hydraulic fluid through the pump housing, and, when the pump is mounted within the internal receptacle, through internally ported passages routed through walls of the hydraulically-powered component housing.2. The pump of claim 1 , wherein there are a plurality of pump chambers arranged in tandem along a reference axis.3. The pump of claim 2 , wherein the pump housing ...

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Номер записи: 99

17-03-2016 дата публикации

Rotary volumetric machine with three pistons

Номер: US20160076373A1

Автор: Jean Pierre Ambert, Vincent Genissieux

Принадлежит: Individual

The invention concerns a rotary volumetric machine with three pistons comprising an enclosure forming a stator in which there moves a rotating assembly forming a rotor comprising a crankshaft that mechanically engages with the pistons, the rotating assembly defining, inside said enclosure, six chambers of variable volume of which the volume varies when the rotating assembly rotates, each of the pistons delimiting, with the enclosure, a variable volume chamber called the extrados chamber and two consecutive pistons delimiting, with the enclosure and the crankshaft, a variable-volume chamber called the intrados chamber. The geometry of the pistons and of the crankshaft is designed such that each intrados chamber has a capacity greater than or equal to the capacity of the extrados chambers.

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Номер записи: 100