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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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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 2885. Отображено 100.
26-01-2012 дата публикации

Fluid Machine

Номер: US20120019010A1
Автор: Hirofumi Wada, Shinji Nakamura
Принадлежит: Sanden Corp

Purpose: To provide a fluid machine, the production efficiency and maintenance characteristics of which can be improved while performance is ensured. Means to attain the purpose: A fluid machine ( 14, 102, 108 ) has a plurality of fluid units ( 16, 20 ) that include rotating bodies ( 40, 66 ) and suck/discharge a working fluid along with the rotation of the rotating bodies, and a drive shaft ( 72 ) connected with the rotating bodies of the fluid units; and an Oldham's coupling ( 85 ) is mounted on a shaft portion between each two adjacent rotating bodies of the drive shaft.

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Номер записи: 1
12-04-2012 дата публикации

Scroll Fluid Machine

Номер: US20120087818A1
Автор: Jiro Iizuka, Kiyoshi Terauchi
Принадлежит: Sanden Corp

Disclosed is a scroll fluid machine configured from inexpensive materials and provided with a rotation prevention mechanism with excellent durability. In the scroll fluid machine, a fixed scroll, the spiral body of which has been vertically disposed on one end surface of an endplate, and a movable scroll, the spiral body of which has been vertically disposed on one end surface of the endplate, are arranged eccentrically to and out of phase with each other such that the spiral bodies engage with each other and the movable scroll turns relative to the fixed scroll. The scroll fluid machine is characterized by being provided with a rotation prevention mechanism comprising a movable-side pin that protrudes from the other surface of the endplate of the movable scroll, a fixed-side pin that protrudes from the housing side towards the other surface of the endplate of the movable scroll, and a rotation prevention member held from both sides by the movable-side pin and the fixed-side pin.

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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
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: 4
03-01-2013 дата публикации

Scroll compressor

Номер: US20130004354A1
Автор: Ikseo Park, Kyunghwan Kim, Myungkyun KIEM
Принадлежит: LG ELECTRONICS INC

A scroll compressor including a fixed scroll having a fixed wrap; and an orbiting scroll having an orbiting wrap engaged with the fixed wrap to form compression chambers, and performing an orbital motion with respect to the fixed scroll, wherein at least one of the fixed wrap and the orbiting wrap has a first constant section, a variable section, and a second constant section consecutively formed in a direction from a wrap final end to a wrap initial end.

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Номер записи: 5
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: 6
28-02-2013 дата публикации

Lubrication of screw machines

Номер: US20130052072A1
Автор: Ian Kenneth Smith, Nikola Rudi Stosic
Принадлежит: City University of London

A screw machine for use with a working fluid with a liquid phase present comprises rotors having meshed, lubricated helical formations. The rotors have an ‘N’ profile as disclosed in WO 97/43550. In use, lubrication of the helical formations of the rotors and optionally of the rotor bearings is achieved substantially exclusively with the liquid phase of the working fluid.

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Номер записи: 7
21-03-2013 дата публикации

Scroll-Type Fluid Machine

Номер: US20130071279A1
Автор: Kikuchi Toshiyuki, Kudo Takayuki, lizuka Jiro, Ohtake Shinichi, Terauchi Kiyoshi
Принадлежит:

A scroll-type fluid machine () in which in which a spiral body () and an end plate () come into sliding contact with each other between fixed and movable scrolls () with a chip seal (), which is provided to the spiral body, intervening therebetween. The spiral body of at least one of the scrolls is provided, in the corner on the end plate side thereof, with a base portion () formed of a concave arc face (), and the chip seal of the other scroll is provided, in the corner of a tip end () thereof, with a fillet () that is formed of a first convex arc face () that comes into sliding contact with the concave arc face. 1. A scroll-type fluid machine comprising a fixed scroll and a movable scroll each having an end plate and a spiral body integral with the end plate , in which the spiral body and the end plate come into sliding contact with each other between the fixed and movable scrolls with a chip seal , which is provided to the spiral body , intervening therebetween , thus demarcating a pressure chamber of working fluid , which is formed between the spiral bodies , characterized in that:the spiral body of at least one of the scrolls has a base portion formed in a corner on the end plate side in the form of a concave arc face, and the chip seal of the other scroll has a fillet formed of a first convex arc face that comes into sliding contact with the concave arc face on the corner of the tip end of the chip seal.2. The scroll-type fluid machine according to claim 1 , characterized in that the chip seal has an engaged portion that is engaged with the spiral body claim 1 , and the engaged portion is situated on a more inner side than the fillet in a width direction of the chip seal.3. The scroll-type fluid machine according to claim 1 , characterized in that:{'b': 2', '1', '1', '2, 'a relationship represented by W>W is satisfied, where the width of the spiral body is W, and the width of the chip seal is W.'}4. The scroll-type fluid machine according to claim 1 , ...

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Номер записи: 8
09-05-2013 дата публикации

INTERNAL GEAR PUMP

Номер: US20130115124A1
Автор: FUJIKI Kenichi, IZUTSU Masato
Принадлежит: YAMADA MANUFACTURING CO., LTD.

An internal gear pump in which an inner rotor and an outer rotor are arranged in a rotor housing chamber. A deepest meshing section is located in the vicinity on a line connecting a center of the inner rotor and a center of the outer rotor. A center of the rotor housing chamber is offset, from a position in which the center and the center of the outer rotor coincide with each other, to the deepest meshing section side by an amount smaller than a tip clearance, which is a gap between the tooth tip of the inner rotor and the tooth tip of the outer rotor in the vicinity of a seal land between a terminal end side of an intake port and a start end side of a discharge port. 1. An internal gear pump in which an inner rotor and an outer rotor are arranged in a rotor housing chamber , whereinin the inner rotor and the outer rotor, e>d/[2(N−2)] is satisfied when eccentricity is represented as e, a tooth bottom diameter of the inner rotor is represented as d, and the number of teeth of the inner rotor is represented as N.2. The internal gear pump according to claim 1 , wherein a deepest meshing section is located in a vicinity on a line connecting a center of the inner rotor and a center of the outer rotor claim 1 , a center of the rotor housing chamber is offset claim 1 , from a position in which the center of the rotor housing chamber and the center of the outer rotor coincide with each other claim 1 , to the deepest meshing section side by an amount smaller than a tip clearance claim 1 , which is a gap between a tooth tip of the inner rotor and a tooth tip of the outer rotor in a vicinity of a seal land between a terminal end side of an intake port and a start end side of a discharge port.3. The internal gear pump according to claim 1 , wherein a tooth profile of the inner rotor is formed by a curve obtained by combining a plurality of ellipses and circles or high-order curves.4. The internal gear pump according to claim 2 , wherein a tooth profile of the inner rotor is ...

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Номер записи: 9
23-05-2013 дата публикации

Scroll-Type Fluid Machine

Номер: US20130129550A1
Автор: Hirawatari Sueji, Ijiri Makoto, Kudo Takayuki
Принадлежит:

A scroll-type fluid machine in which: a fixed scroll and a moveable scroll are disposed in a housing; a fluid pocket, the volume of which varies, is formed between the fixed scroll and the moveable scroll; and a thrust plate for receiving the reaction force in the axial direction of pressure applied within the fluid pocket is disposed between the bottom plate of the moveable scroll and the housing. The scroll-type fluid machine is characterized in that at least the surface of the thrust plate facing the bottom plate of the moveable scroll is subjected to tin plating. As a consequence, it is possible to efficiently produce, at a low cost, a thrust bearing which is disposed between the bottom plate of the moveable scroll and the housing, exerts excellent seizure resistance, and has a high PV limit level and a low friction coefficient. 1. A scroll-type fluid machine in which a fixed scroll and a movable scroll to revolve around the fixed scroll as being prevented from rotating are provided to a housing , a fluid pocket having a variable volume is provided between the fixed scroll and the movable scroll , and a thrust plate to bear an axial reaction force of a pressure applied into the fluid pocket is provided between a bottom plate of the movable scroll and the housing , characterized in that at least a surface of the thrust plate facing the bottom plate of the movable scroll is plated with tin-based metal.2. The scroll-type fluid machine according to claim 1 , wherein the thrust plate is made of iron-based steel plate claim 1 , cast metal or light metal.3. The scroll-type fluid machine according to claim 1 , wherein the thrust plate is provided with a base layer plated with the tin-based metal.4. The scroll-type fluid machine according to claim 3 , wherein the base layer is a nickel plating or a copper plating.6. The scroll-type fluid machine according to claim 1 , wherein the tin-based metal to be plated with has a thickness of 1-15 μm.7. The scroll-type fluid ...

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Номер записи: 10
30-05-2013 дата публикации

SCREW TYPE PUMP OR MOTOR

Номер: US20130136639A1
Автор: Simpson Alastair
Принадлежит: HIVIS PUMPS AS

A pump assembly comprising a stator and a rotor having vanes of opposite handed thread arrangements is described. A radial gap is located between the stator vanes and the rotor vanes such that rotation of the rotor causes the stator and rotor to co-operate to provide a system for moving fluid longitudinally between them. The operation of the pump results in a fluid seal being is formed across the radial gap. The described apparatus can also be operated as a motor assembly when a fluid is directed to move longitudinally between the stator and rotor. The presence of the fluid seal results in no deterioration of the pump or motor efficiency, even when the radial gap is significantly greater than normal working clearance values. Furthermore, the presence of the radial gap makes the pump/motor assembly ideal for deployment with high viscosity and/or multiphase fluids. 1. A pump assembly comprising a stator and a rotor , each one being provided with one or more vanes having an opposite handed thread with respect to the thread of the one or more vanes on the other , the stator and rotor co-operating to provide , on rotation of the rotor , a system for moving a fluid longitudinally between them , wherein a radial gap in the range of 1.28 mm to 10 mm is located between the one or more stator vanes and the one or more rotor vanes , and a ratio of a height one of the one or more rotor vanes to a height of the one or more stator vanes is in the range if 1.1 to 20 along the length of the pump assembly.25-. (canceled)6. A pump assembly as claimed in wherein the size of the radial gap is configured to increase or decrease along the length of the assembly.7. A pump assembly as claimed in wherein the rotor vanes are arranged on an external surface of the rotor so as to form one or more rotor channels.8. A pump assembly as claimed in wherein a ratio of the volume to cross sectional area of the rotor channels is equal to claim 7 , or greater than claim 7 , 200 mm.9. A pump assembly as ...

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Номер записи: 11
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: 12
01-08-2013 дата публикации

DESYNCHRONIZED COUPLING OF A HYDRAULIC MACHINE

Номер: US20130195704A1
Автор: LAMBEY Julien, PRIGENT André
Принадлежит: POCLAIN HYDRAULICS INDUSTRIE

The present invention relates to a hydraulic circuit including: 23458921222. The circuit according to claim 1 , also including a reservoir () at ambient pressure claim 1 , wherein said connection means ( claim 1 , claim 1 , claim 1 , ) include at least one selector valve designed to selectively connect said intake () and discharge () ports of said hydraulic machine ()to the high pressure (HP) and low pressure (BP) lines,{'b': '3', 'to the reservoir ().'}32458949212222. The circuit according to one of or claim 1 , wherein said hydraulic machine () is a radial piston hydraulic machine claim 1 , and said sequential connection means ( claim 1 , claim 1 , claim 1 , ) include at least one distributor ( claim 1 , ) designed for claim 1 , during a first movement claim 1 , connecting the intake () of said hydraulic machine () to the high pressure line (HP) and claim 1 , during a second movement claim 1 , to connect the discharge () of said hydraulic machine () to the low pressure line (BP).4458921222. The circuit according to claim 3 , also including a control line (PP) claim 3 , the pressure whereof is lower than the pressure in the low pressure line (BP) claim 3 , and wherein the connection means ( claim 3 , claim 3 , claim 3 , ) are also designed to selectively connect said ports ( claim 3 , ) of said hydraulic machine () to the control line (PP).745. The circuit according to one of or claim 3 , wherein said connection means of the hydraulic machine include a first () and a second () distributor claim 3 ,{'b': 4', '21', '2', '3', '21', '2', '8, 'said first distributor () being designed for, in a first configuration, connecting the intake () of the hydraulic machine () to a reservoir () at ambient pressure and, in a second configuration, for connecting the intake () of the hydraulic machine () to the intake distributor (),'}{'b': 5', '22', '2', '3', '22', '2', '8, 'said second distributor () being designed for, in a first configuration, connecting the discharge () of the ...

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Номер записи: 13
08-08-2013 дата публикации

Rotary Vane Air Motor with Improved Vanes and Other Improvements

Номер: US20130202470A1
Автор: Cox Daniel S., Liang Davey Z.
Принадлежит: Shining Golden Yida Welding & Cutting Machinery Manufacture Ltd.

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, andwherein 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, an axial direction of the rotor, and an orthogonal direction, the orthogonal direction being orthogonal to the radial direction and to the axial direction, andwherein, for each of the vanes, 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 direction of a portion of the vane that is not permanently ...

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Номер записи: 14
29-08-2013 дата публикации

PUMP OR MOTOR FOR LIQUID OR GASEOUS MEDIA

Номер: US20130224056A1
Автор: Arnold Felix, Skrynski Evgenij
Принадлежит: ROBERT BOSCH GMBH

A pump or motor for fluid or gaseous media comprising a shaft (), which faces a working part () and has a common inclined sliding surface () with the same, whereby the working part () limiting the pump working spaces () wobbles in a positionally fixed housing (). 1. A pump or motor for liquid or gaseous media , comprising:work chambers disposed between two diametrically opposed work faces that are symmetrical to respective axes of rotation of the two work faces;one spur toothing on each of the two work faces, the spur toothings associated with one another and which, together with radially extending meshing lines of contact, define the work chambers;a defined corresponding angle between the respective axes of the two work faces,a working part having a spur toothing for receiving one of the work faces, the working part being rotatable about an axis;a spherical radial boundary of the working part and of the work faces for sealing support on a partly spherical inner wall of a housing;a radial boundary of the work chambers, by which boundary the partly spherical inner wall surrounds the working part, on which wall the working part tumbles about the axis and is supported radially sealingly on the wall;a rotary drive or power takeoff via a shaft; andone conduit forming one inlet and one conduit forming one outlet to the work chambers for the media, whereinbetween the shaft and the working part a slanted sliding plane is disposed, so that rotation of the shaft leads to tumbling of the working part, and tumbling of the working part leads to rotation of the shaft,the work face, diametrically opposite the working part and having a spur toothing corresponding to the spur toothing of the working part, is non-corotating and is a stationary work face in the housing, andthe shaft has an increased diameter toward the slanted sliding plane and the shaft has a connecting conduit, extending in the shaft for carrying the liquid or gaseous media onward from and to the work chambers, ...

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Номер записи: 15
26-09-2013 дата публикации

Rotary actuator

Номер: US20130247754A1
Автор: Koji Ito, Takashi Koizumi
Принадлежит: Nabtesco Corp

An output shaft and arms are installed inside a cylinder. Pistons that are formed in an arc shape and rotatably connected to the arms slide and are displaced in the circumferential direction of the cylinder inside the cylinder. Inside the cylinder, a first pressure chamber on the arm side and second pressure chambers on the piston head portion side are provided. Third pressure chambers are provided on both sides of the cylinder. A pressure medium is supplied to one of the first pressure chamber and the second pressure chamber and discharged from the other, and the output shaft pivots in a rotational direction. When the pressure medium is supplied to the second pressure chambers, the pressure medium is also supplied to the third pressure chambers.

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Номер записи: 16
26-09-2013 дата публикации

IDAR-ACE INVERSE DISPLACEMENT ASYMMETRIC ROTATING ALTERNATIVE CORE ENGINE

Номер: US20130251579A1
Автор: Anderson William, Lukaczyk Trent, Lukaczyk William
Принадлежит: Lumenium LLC

The disclosure provides engines or pumps that includes a rotatable shaft defining a central axis A, the shaft having a first end and a second end. The shaft can have an elongate first island disposed thereon. The first island can have a body with a volume generally defined between front and rear surfaces that are spaced apart. The front and rear surfaces can lie in a plane parallel to a radial axis R. The perimeters of the front and rear surfaces can define a curved perimeter surface therebetween. The engine or pump can further include a front side plate disposed adjacent to the front surface of the first island, and a rear side plate disposed adjacent to the rear surface of the first island. The engine or pump also includes a first contour assembly disposed between the front side plate and the rear side plate. 1. An engine or pump , comprising:a) a rotatable shaft defining a central axis A, the shaft having a first end and a second end, the shaft having an elongate first island disposed thereon, the first island having a body with a volume generally defined between front and rear surfaces that are spaced apart along the rotatable shaft, the front and rear surfaces lying in a plane parallel to a radial axis R, the front and rear surfaces having a rounded, non-circular shape, the perimeters of the front and rear surfaces defining a curved perimeter surface therebetween;b) a front side plate disposed adjacent to the front surface of the first island;c) a rear side plate disposed adjacent to the rear surface of the first island; andd) a first contour assembly disposed between the front side plate and the rear side plate, the first contour assembly being defined by a pair of opposed outwardly facing arcuately shaped front and rear surfaces that are connected by a concave inwardly facing surface, the concave inwardly facing surface of the contour assembly facing the curved perimeter surface of the first island, the concave inwardly facing surface and the curved perimeter ...

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Номер записи: 17
26-09-2013 дата публикации

SCREW SHAFT STRUCTURE FOR DOUBLE-SHAFT EXTRUDER

Номер: US20130251582A1
Автор: Hamada Takuya, Watada Satoru
Принадлежит:

An object is to reduce a weight of a raw material to be used for manufacturing a screw shaft by combining a tapered section and a tapered ring as a structure of a flange section. A screw shaft structure for a twin screw extruder includes a tapered section () provided between a ground section () and a screw piece inserting section (), and a tapered ring () fitted onto the tapered section (), the tapered ring () serving as a flange section. 1. A screw shaft structure for a twin screw extruder , comprising at least:{'b': '5', 'a connection section () to be connected to a gear reducer;'}{'b': '6', 'a ground section (); and'}{'b': '8', 'a screw piece inserting section (),'}the screw shaft structure for a twin screw extruder further comprising:{'b': 20', '6', '8, 'a tapered section () provided between the ground section () and the screw piece inserting section (); and'}{'b': 21', '20', '21, 'a tapered ring () fitted onto the tapered section (), the tapered ring () serving as a flange section.'}22066a. A screw shaft structure for a twin screw extruder according to claim 1 , wherein an outer diameter of the tapered section () is set equal to or smaller than a ground section outer diameter () of the ground section (). The present invention relates to a screw shaft structure for a twin screw extruder, and more particularly, to a novel improvement for reducing a weight of a raw material, which is used for manufacturing a screw shaft, by combining a tapered section and a tapered ring as a structure of a flange section.As a conventionally used screw shaft structure for a twin screw extruder of this type, the structure disclosed in Patent Literature 1 may be taken as an example.That is, the above-mentioned screw shaft structure of Patent Literature 1 is configured as illustrated in .Specifically, in , reference symbol represents a screw shaft raw material to be used for manufacturing a screw shaft through a cutting process. The screw shaft raw material has a pair of suspension ...

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Номер записи: 18
14-11-2013 дата публикации

Scroll expander

Номер: US20130302199A1
Автор: Atsushi Unami, Tamotsu Fujioka
Принадлежит: Anest Iwata Corp

In a double rotation type scroll expander having double expansion chambers, a single integrated drive shaft is disposed to penetrate the interior of a housing, the double expansion chambers are formed by a drive scroll body and a driven scroll body, and a working medium introduction hole is provided in an axial direction of the drive shaft such that the working medium is supplied evenly to the double expansion chambers through the working medium introduction hole via a radial direction hole. The drive shaft and the drive scroll body formed integrally with the drive shaft rotate while the driven scroll body rotates synchronously with the drive scroll shaft via an interlocking mechanism.

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Номер записи: 19
14-11-2013 дата публикации

SCROLL TYPE FLUID MACHINE, METHOD AND DEVICE FOR FORMING ELASTIC COATING THEREON

Номер: US20130302200A1
Автор: ASAMI Junichi, Sato Toru
Принадлежит:

A coating solution that contains 10 to 20% by weight of epoxy resin serving as a thermosetting resin, 20 to 30% by weight of MoS, and 5 to 10% by weight of graphite, with a remainder thereof constituted by an organic solvent, is sprayed onto a wrap portion side face of an orbiting scroll from a spray nozzle . While spraying the coating solution, the orbiting scroll is rotated on a rotating table and the spray nozzle is moved along a rectilinear movement path toward a radial direction outer side of the orbiting scroll while maintaining an attitude thereof from the start of the spraying process. After applying the coating solution, the coating solution is dried by baking, whereupon a break-in operation is performed. As a result, an elastic coating is formed at a coating thickness that enables elastic deformation in accordance with a clearance between the wrap portion side faces. 1. A scroll type fluid machine in which an elastic coating is formed on a side face of a spiral wrap portion , wherein the elastic coating is obtained by dispersing a powdered solid lubricant in a synthetic resin that possesses elasticity and is more flexible than a scroll base material constituting the wrap portion , and is formed at a coating thickness that enables elastic deformation relative to an opposing wrap portion side face of another scroll during an operation while ensuring that a clearance is not generated between the wrap portion side faces.2. The scroll type fluid machine according to claim 1 , wherein the elastic coating is formed by applying a coating solution obtained by dissolving constituent components of the elastic coating in a solvent claim 1 , to the wrap portion side face at a coating thickness that exceeds the coating thickness enabling elastic deformation during an operation claim 1 , drying the coating solution claim 1 , and then finishing the coating solution to the coating thickness enabling elastic deformation by performing a break-in operation.3. The scroll type ...

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Номер записи: 20
14-11-2013 дата публикации

METHOD AND DEVICE FOR FORMING COATING ON SCROLL TYPE FLUID MACHINE

Номер: US20130302518A1
Автор: ASAMI Junichi, KUWATA Tohru, MINEGISHI Tatsuya
Принадлежит:

An orbiting scroll is fixed on a rotating table and rotated about a spiral center. A spray nozzle is positioned in the spiral center or at an outside end of the orbiting scroll and caused to discharge a coating toward a side face of a wrap portion. The spray nozzle is moved along a straight line in a radial direction while discharging the coating. When a spraying start position is set as the spiral center, a rotation angle speed of the orbiting scroll is gradually reduced in accordance with the movement of the spray nozzle. When the spraying start point is set as the outside end, the rotation angle speed of the orbiting scroll is gradually increased in accordance with the movement of the spray nozzle. As a result, the coating can be applied to the wrap portion side face evenly. 1. A method for forming a coating on a scroll type fluid machine , in which a coating is formed on a side face of a spiral wrap portion of a scroll type fluid machine by spraying a coating solution onto the side face using a spray nozzle , comprising:a preliminary step of fixing a scroll constituted by the wrap portion and an end plate to a rotating table and rotating the scroll about a spiral center of the wrap portion;a spraying step of moving the spray nozzle in a radial direction of the scroll while spraying the coating solution onto the rotating scroll from the spray nozzle toward the side face of the wrap portion; anda coating thickness adjusting step of keeping a coating thickness of the coating solution constant by adjusting a rotation speed of the scroll in accordance with a radial direction movement of the spray nozzle.2. The method for forming a coating on a scroll type fluid machine according to claim 1 , wherein a movement speed of the spray nozzle is kept constant claim 1 , and the rotation speed of the scroll is adjusted in accordance with the movement speed.3. The method for forming a coating on a scroll type fluid machine according to claim 1 , wherein the spray nozzle is ...

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Номер записи: 21
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: 22
23-01-2014 дата публикации

POSITIVE DISPLACEMENT ROTARY VANE ENGINE

Номер: US20140020384A1
Автор: HARTFIELD, JR. Roy J.
Принадлежит:

The present invention is an engine, which includes a positive displacement compression process, a variably fueled, continuous combustor and/or heat exchanger, and a positive displacement, work-producing expander. This arrangement avoids the traditional stochiometric mixture requirements utilized in spark-ignition based engines and the emission problems associated with diesel engines. 1. A rotary vane engine comprising:an external housing defining a hollow chamber therein;a rotor eccentrically mounted within the chamber, the rotor having a plurality of rotary blades extending radially therefrom;a race substantially contained within the rotor, the race being in mechanical engagement with at least a portion of the blades to limit the radial extension of the blades in relation to the rotor.2. A rotary vane engine of claim 1 , wherein the engine further comprises a fixed shaft coupled to the housing.3. A rotary vane engine of claim 2 , wherein the race is rigidly coupled to the fixed shaft.4. The rotary vane engine of claim 3 , wherein the rotor is operable for rotational movement about the fixed shaft and race.5. The rotary vane engine of claim 1 , wherein the race limits the radial extension of the blades from a retracted position to an extended position.6. The rotary vane engine of claim 5 , wherein the race comprises a blade guide surface to engage the blades.7. The rotary vane engine of claim 6 , wherein the blades comprise a blade collar for engagement with the blade guide surface.8. A rotary vane engine comprising:a cowl defining a hollow chamber therein; anda rotor eccentrically mounted within the chamber, the rotor having a plurality of rotary blades extending radially outwardly therefrom for sealing engagement with an interior confronting face of the cowl;wherein at least a portion of the interior face of the cowl defines a substantially exponential curvature;wherein the engine further comprises a race substantially contained within the rotor, the race being in ...

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Номер записи: 23
27-02-2014 дата публикации

Rotational clap suction/pressure device

Номер: US20140056747A1
Автор: Jong-Mun Kim
Принадлежит: Individual

The present invention relates to a simple and straightforward positive displacement suction/pressure device (rotational clap suction/pressure device) for utilizing in general industrial flow machines, such as various positive displacement pumps, vacuum pumps, compressors, flow meters, and rotary internal combustion engines. The object of the present invention using a double non-uniform rotation is to provide a simple and durable mechanical device having improved efficiency, by replacing the existing linear contact between various types of rotors or between a rotor and a housing, which is a problem in existing positive displacement flow machines and rotary internal combustion engines, with a whole surface.

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Номер записи: 24
06-01-2022 дата публикации

Rotary Piston Machine and Method for Producing a Seal in a Rotary Piston Machine

Номер: US20220003117A1
Автор: Bombardi Jakob, Bungart Merlin
Принадлежит:

A rotary piston engine and a method for manufacturing a sealing in a rotary piston engine are described. The rotary piston engine has at least two piston pairs respectively connected via a link, the pistons of which are arranged at opposite ends of the links and, during operation, circulate on an at least approximately circular path in a piston housing, such that varying working volumes are enclosed between the pistons of different piston pairs during the circulation and that, via a sealing provided between the piston housing and the pistons, a fluid flow between the enclosed working volumes is at least impeded. The technical solution described is characterized in that the sealing is formed by a gap between the pistons and the piston housing and surfaces of the pistons and the piston housing delimiting the gap at least at times are irregularly structured. 120.-. (canceled)21124345732653. A rotary piston engine () with at least two piston pairs () respectively connected via a link () , the pistons () of which are arranged at opposite ends of the links () and , during operation , circulate on an at least approximately circular path in a piston housing () , such that varying working volumes () are enclosed between the pistons () of different piston pairs () during the circulation , and with a sealing () provided between the piston housing () and the pistons () , which at least impedes a fluid flow between the enclosed working volumes ,{'b': 6', '8', '3', '5', '8', '9', '10', '3', '5', '8, 'characterized in that the sealing () is formed by a gap () between the pistons () and the piston housing (), in which no sealing elements are arranged, and that the gap () is designed such that leakage flows between neighboring working spaces are minimized, wherein surfaces (, ) of the pistons () and of the piston housing () delimiting the gap () at least at times have a surface structure generated directly upon commissioning by means of a running-in or grinding-in, resp., process.'} ...

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Номер записи: 25
01-01-2015 дата публикации

RISTAU ORBITAL ENGINE

Номер: US20150004037A1
Автор: Ristau Judson Paul
Принадлежит:

A rotary thermal engine for generating mechanical energy. The rotary thermal engine includes an engine block having an enclosed interior space, a first rotor and a second rotor, a first disc coupled to the first and second rotor. A second disc is positioned between the first and second rotor, wherein the second disc pivots relative to the first disc. In addition, wherein the first and second rotors and first and second discs are at least partially enclosed within the interior space of the engine block. 1. A rotary thermal engine , comprising:an engine block having an enclosed interior space;a first rotor and a second rotor;a first disc coupled to the first and second rotor;a second disc positioned between the first and second rotor, wherein the second disc pivots relative to the first disc; andwherein the first and second rotors and first and second discs are at least partially enclosed within the interior space of the engine block.2. The rotary thermal engine of claim 1 , further comprising a drive shaft coupled to the first or second rotor.3. The rotary thermal engine of claim 1 , wherein the second disc comprises an elongated opening for receiving the first disc.4. The rotary thermal engine of claim 1 , further comprising one or more ports on the engine block in communication with the interior space of the engine block.5. The rotary thermal engine of claim 1 , wherein the engine block is comprised of a first block and a second block coupled to each other.6. The rotary thermal engine of claim 1 , wherein the first and second rotor are configured to rotate about an axis.7. The rotary thermal engine of claim 1 , wherein the first and second discs form at least two separate chambers within the interior space of the block.8. The rotary thermal engine of claim 1 , wherein the first block and second block each have an inlet and outlet port.9. The rotary thermal engine of claim 1 , wherein a first chamber is created within the interior space of the first block claim 1 , ...

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Номер записи: 26
15-01-2015 дата публикации

ROTARY PISTON ENGINE AND METHOD FOR PRODUCING A ROTARY PISTON ENGINE

Номер: US20150017044A1
Автор: Huber Gerd, SIGMUND Ernst, Steinwandel Jürgen
Принадлежит:

A rotary piston engine comprises a stationary housing and a piston movably accommodated in the housing. The housing and the piston form at least one chamber with a chamber surface. At least one partial portion of the chamber surface has a thermal barrier coat for reducing a thermal conductivity of the partial portion of the chamber surface. At least one partial portion of the chamber surface has a metallic spray coat. A method for producing such a rotary piston engine can also be achieved. 1. A rotary piston engine , comprisinga stationary housing; anda piston movably accommodated in the housing, the housing and the piston forming at least one chamber with a chamber surface, at least one partial portion of the chamber surface having a thermal barrier coat configured to reduce a thermal conductivity of the partial portion of the chamber surface, and at least one partial portion of the chamber surface having a metallic spray coat.2. The rotary piston engine according to claim 1 , whereinthe thermal barrier coat has an oxide ceramic coat including zirconium oxide.3. The rotary piston engine according to claim 2 , whereinthe zirconium oxide is at least partially stabilized by yttrium.4. The rotary piston engine according to claim 1 , whereinthe thermal barrier coat has a lanthanum aluminate coat or a hexaaluminate coat.5. The rotary piston engine according to claim 2 , wherein at least one of the followingthe oxide ceramic coat is applied to the at least one partial portion of the chamber surface by high-speed flame spraying, laser powder coating or arc spraying; andthe lanthanum aluminate coat or the hexaaluminate coat is applied to the at least one partial portion of the chamber surface by an atmospheric high-temperature coating method including plasma spraying, high-speed flame spraying, laser powder coating or arc spraying.6. The rotary piston engine according to claim 1 , whereinthe metallic spray coat has at least one of a corrosion coat and a tribological coat.7. ...

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Номер записи: 27
16-01-2020 дата публикации

SEALING SLEEVE FOR GEARED SHAFT OF GEARMOTOR ASSEMBLY

Номер: US20200018167A1
Автор: Biro Joshua M., Hilton Daniel E., Hutsler Jeffrey M., Johnson Philip S., Michaels Paul G., Moore William D.
Принадлежит: NIDEC MOTOR CORPORATION

A motor includes a shaft rotatable about an axis, an engaged component engaged by the shaft, a sleeve fixed to the shaft to rotate therewith, and a seal at least partly circumscribing the shaft. The shaft includes an engagement region presenting a substantially variable outer shaft surface that at least in part engages the engaged component. The sleeve includes a first section that at least partly circumscribes and engages the engagement region of the shaft. The first section of the sleeve presents an outer seal-engaging surface and an outer bearing-engaging surface. The seal and the bearing each at least partly circumscribe the engagement region of the shaft and the first section of the sleeve to engage the seal-engaging surface and the bearing-engaging surfaces, respectively, of the sleeve. 1. A motor comprising:a shaft rotatable about an axis;an engaged component engaged by the shaft; anda sleeve fixed to the shaft to rotate therewith;said shaft including an engagement region presenting a substantially variable outer shaft surface that at least in part engages the engaged component,said sleeve including a first section that at least partly circumscribes and engages the engagement region of the shaft.2. The motor of claim 1 ,said variable outer shaft surface comprising a plurality of teeth.3. The motor of claim 2 ,said engaged component comprising a gear,said shaft rotatably engaging said gear.4. The motor of claim 1 ,said shaft including a second region adjacent the engagement region,said sleeve including a second section that at least partly circumscribes the second region.5. The motor of claim 4 ,said second region of the shaft and said engagement region of the shaft presenting at least substantially equal outer diameters,said first section of the sleeve and said second section of the sleeve presenting at least substantially equal inner and outer diameters.6. The motor of claim 4 ,said second region of the shaft presenting a substantially smooth outer shaft ...

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Номер записи: 28
16-01-2020 дата публикации

INTERNAL COMBUSTION ENGINE WITH A ROTATING PISTON AND UNI-DIRECTIONAL ROLLING BEAR

Номер: US20200018229A1
Автор: AKDUMAN Ibrahim, CANLI Guray Ali, CAYOREN Mehmet, ERCAN Hasan, KURTOGLU Ismail, YUMLU Haluk Ali
Принадлежит:

An internal combustion engine, includes a 1st rotor having two blades, rotating in the circular volume of the motor body block with variable angular speed; a 2nd rotor having two blades, rotating in the circular volume of the motor body block with variable angular speed, a rolling bearing provided between the 1st rotor and the 2nd rotor enables rotation of the 1st rotor and the 2nd rotor on each other; a 1st unidirectional rolling bearing between the 1st rotor and the back cover enables rotation of the 1st rotor and the 2nd rotor at different times and at different extents; a 3rd unidirectional rolling bearing transferring the 2nd rotor's rotation movements to the output shaft is provided on the internal collar of the 2nd rotor; a 4th unidirectional rolling bearing transferring the 1st rotor's rotation movements to the output shaft is provided on the internal collar of the 1st rotor. 2. The internal combustion engine according to claim 1 , further comprising a first sealing component for external and internal sealing between the front cover and the back cover.3. The internal combustion engine according to claim 2 , further comprising a second sealing component for blocking external or internal foreign substance entrance at a fuel input or output and reducing a friction between the first rotor and the second rotor.4. The internal combustion engine of claim 3 , further comprising a third sealing component is provided on the blades of the first rotor and the second rotor for providing sealing with a low friction coefficient.5. The internal combustion engine according to claim 1 , further comprising an asymmetric rotor structure with one flat side and one concave or convex side claim 1 , preventing the first rotor and the second rotor from sticking together when a load on the output shaft is very high.6. The internal combustion engine according to claim 1 , further comprises at least one U-shaped compression ring and at least one U-shaped oil ring for providing ...

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Номер записи: 29
16-01-2020 дата публикации

Scroll-type compressor

Номер: US20200018310A1
Автор: Hirofumi Hirata, Keita KITAGUCHI, Makoto Takeuchi, Takahide Ito, Takuma YAMASHITA
Принадлежит: Mitsubishi Heavy Industries Ltd

Provided is a pin-ring mechanism (26) that supports a driving-side scroll member and a driven-side scroll member such that the driving-side scroll member and the driven-side scroll member are in relative revolving motion. The pin-ring mechanism (26) includes: a pin member (30); a ring member (34) that has an inner ring (34b) which comes into contact with the pin member (30), a plurality of balls (34c) which roll on the inner ring (34b), and a retainer (34d); and a bush 36 that is disposed on an inner periphery of the inner ring (34b), and receives a component of force in a circumferential direction of the inner ring (34b) from the pin member (30) to rotate together with the inner ring (34b).

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Номер записи: 30
22-01-2015 дата публикации

Scroll-Type Expander And Fluid Machine Provided With Same

Номер: US20150023824A1
Автор: Hirofumi Wada, Shinji Nakamura, Yuuta Tanaka
Принадлежит: Sanden Corp

To provide a scroll-type expander having a relatively simple structure, small energy loss, and high durability and reliability. A pump-integrated expander 27 includes an expansion unit 50 configured as a scroll-type expander. In the expansion unit 50, a working fluid passage 51 e extending from a suction port 51 c open to the outside to an inlet 51 d open to an expansion chamber 54 is formed in a base 51 a of a fixed scroll 51. A working fluid supplied from the outside is guided to the expansion chamber 54 by the working fluid passage 51 e. In order to receive a thrust force acting on an orbiting scroll 53 and to prevent the rotation of the orbiting scroll 53, a ball-coupling anti-rotation mechanism 56 using balls as rolling members is disposed between a stepped face 52 c of an expander housing 52 and a base 53 a of the orbiting scroll 53.

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Номер записи: 31
25-01-2018 дата публикации

BI-HELICAL TOOTHED WHEEL WITH VARIABLE HELIX ANGLE AND NON-ENCAPSULATING TOOTH PROFILE FOR HYDRAULIC GEAR APPARATUSES

Номер: US20180023561A1
Автор: ROSSI MANUELE
Принадлежит:

The invention relates to a bi-helical toothed wheel () with non-encapsulating profile () for hydraulic gear apparatuses (), of the type bound to a support shaft () to form a driving or driven wheel of said hydraulic apparatus and comprising a plurality of teeth () extended with variable helix angle with continuous function in the longitudinal direction, wherein the teeth profile () keeps a shape continuity in each cross section thereof. More particularly, each tooth of the toothed wheel is longitudinally split in three zones: initial (A), central (B) and terminal (C) zones, and the central zone (B) has a variable helix angle, while the initial (A) and terminal (c) zones have a constant helix angle. The invention allows to manufacture contra-rotating rotors, having a non-encapsulating profile and a helix shape such as to suppress the angular point at the center of the rotors themselves and therefore all the problems related to their machining. 1. A bi-helical toothed wheel with non-encapsulating profile for hydraulic gear apparatuses , said bi-helical toothed wheel being bound to a support shaft to form a driving or driven wheel of said hydraulic apparatus and comprising a plurality of teeth extended with variable helix angle with continuous function in the longitudinal or axial tooth direction , wherein the teeth profile keeps a shape continuity in each cross section thereof.2. A toothed wheel according to claim 1 , wherein each tooth is longitudinally split in three zones: initial claim 1 , central and terminal zones claim 1 , where the initial and terminal zones have a symmetrical helix angle.3. A toothed wheel according to claim 1 , wherein the helix angle of the tooth is variable over the whole gear length.4. A toothed wheel according to claim 1 , wherein each cross section coincides with the front profile of the toothed wheel.5. A toothed wheel according to claim 1 , wherein the helix development has a transition point between a right-handed portion and a left- ...

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Номер записи: 32
24-01-2019 дата публикации

MAGNETICALLY ENGAGED PUMP

Номер: US20190024660A1
Автор: BLANKEMEIER WILLIAM, LEOPOLD CHRISTOPHER, LIBBY LOREN MICHAEL, Ortega Nicholas William, SANDORE BRIAN JAMES, SCHWARTZ ROBERT GEORGE, SHAFER CLARK
Принадлежит: WILDEN PUMP AND ENGINEERING LLC

A magnetically engaged pump includes a pump housing with a rotatable magnetic drive assembly, a cylindrical canister and a rotatable driven magnet assembly. This magnetic coupling is associated with a pump rotor and a laterally positioned gear wheel to define a gear pump. This magnetic coupling is alternatively associated with a pump rotor with an impeller to define a centrifugal pump. Either pump includes a stationary shaft to mount the driven magnet assembly and pump rotor. A rotatable carrier with bushings and thrust bushings coaxially supports the rotatable driven magnet assembly and pump rotor. 1. A magnetically engaged pump comprisinga pump housing including a shaft in the housing;a magnetic coupling in the pump housing including a rotatable magnetic drive, a rotatable driven magnet assembly inwardly of the rotatable magnetic drive and a cylindrical canister extending between the rotatable magnetic drive and the rotatable driven magnet assembly, the rotatable driven magnet assembly having a concentric cavity;a pump rotor rotatable with the rotatable driven magnet assembly and including an axial passage;an inner impeller wheel rotatable with the rotatable driven magnet assembly and axially removable through the pump rotor, the pump rotor including an annular impeller wheel having continuity of flow with the inner impeller wheel;a carrier including a bore rotatably disposed about the shaft and at least one plain bushing in the bore bearing on the shaft, the carrier being within the concentric cavity and fitting through the axial passage for removal from the pump with the pump rotor engaged with the rotatable driven magnet assembly and the rotatable driven magnet assembly magnetically engaged with the rotatable magnetic drive.2. The magnetically engaged pump of claim 1 , the rotatable carrier being axially removable through the pump rotor from the rotatable driven magnet assembly with the inner impeller wheel and the shaft.3. The magnetically engaged pump of ...

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Номер записи: 33
23-01-2020 дата публикации

LOW COST SCROLL COMPRESSOR OR VACUUM PUMP

Номер: US20200025201A1
Автор: Farnham Scott D., Mesward Joshua R.
Принадлежит:

A low cost scroll device and methods of manufacturing the same are described. The scroll device includes, for example, a drive pin hole and bearing bores machined into a scroll of the scroll device from the same side as the involute of the scroll; idler shaft assemblies with no more than one bearing in the orbiting scroll for mechanically coupling the orbiting scroll to the fixed scroll; and an epoxy coating applied using a process that requires assembly of the scroll device only once. 1. A scroll device comprising:a fixed scroll comprising a first side opposite a second side, the first side comprising a first involute and a second side comprising a plurality of cooling fins;an orbiting scroll comprising a second involute, the orbiting scroll mounted to the fixed scroll via a mechanical coupling and configured to orbit relative to the fixed scroll on the mechanical coupling;a motor operably connected to the orbiting scroll; anda cooling fan mounted to the second side of the fixed scroll.2. The scroll device of claim 1 , wherein the mechanical coupling comprises at least one idler shaft assembly claim 1 , the idler shaft assembly comprising a single bearing provided in a first bearing bore of one of the fixed scroll and the orbiting scroll claim 1 , a plurality of bearings provided in a second bearing bore of another of the fixed scroll and the orbiting scroll claim 1 , and an idler shaft supported by the first bearing and the plurality of bearings.3. The scroll device of claim 2 , wherein the first bearing bore is positioned in the orbiting scroll claim 2 , and the second bearing bore is positioned in the fixed scroll.4. The scroll device of claim 3 , further comprising at least two retaining screws positioned to secure the single bearing in the first bearing bore claim 3 , and at least two additional retaining screws positioned to secure the plurality of bearings in the second bearing bore.5. The scroll device of claim 3 , wherein the first bearing bore is machined ...

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Номер записи: 34
01-02-2018 дата публикации

SCISSOR TYPE COMPRESSION AND EXPANSION MACHINE USED IN A THERMAL ENERGY RECUPERATION SYSTEM

Номер: US20180030858A1
Автор: Bernard Jean-Sylvain, Gessier Bertrand, Gormat Abdelaziz, Tondelli Stephane
Принадлежит: VALEO SYSTEMES THERMIQUES

The invention relates to a compression and expansion machine comprising a body () with at least one chamber () of revolution about an axis of symmetry, and pistons () rotating about the axis of symmetry and dividing the chamber into cells () rotating with the pistons, said machine furthermore comprising a device () for coordinating the movement of said pistons and configured so that, during one rotation cycle, each cell () performs at least one first expansion/contraction cycle corresponding to a stage of compressing a first stream of gas passing through this cell and at least one second expansion/contraction cycle corresponding to a stage of expanding a second stream of gas passing through this cell. 1. A compression and expansion machine comprising:a body with at least one chamber of revolution about an axis of symmetry;pistons rotating about the axis of symmetry and dividing the chamber into cells rotating with the pistons; anda coordination device for coordinating the movement of said pistons, the coordination device being configured so that, during one rotation cycle, each cell performs at least one first expansion/contraction cycle corresponding to a stage of compressing a first stream of gas passing through this cell, and at least one second expansion/contraction cycle corresponding to a stage of expanding a second stream of gas passing through this cell.2. The compression and expansion machine as claimed in claim 1 , wherein the coordination device is configured such that each cell performs the same number of first expansion/contraction cycles corresponding to a stage of gas expansion as second expansion/contraction cycles corresponding to a stage of gas compression.3. The compression and expansion machine as claimed in claim 1 , comprising claim 1 , in the body claim 1 , gas inlet and outlet openings for each cycle of expansion/contraction of the cells claim 1 , wherein the passage cross-section of the gas inlet opening is larger than the passage cross- ...

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Номер записи: 35
01-05-2014 дата публикации

Sealed Scroll Compressor for Helium

Номер: US20140119971A1
Автор: Masao Shiibayashi, Takamasa Adachi, Yasushi Izunaga
Принадлежит: Hitachi Appliances Inc

A suction chamber and the oil injection port are linked, under a certain range of revolution angle, via a suction working chamber formed in the radially outer side by a orbiting scroll outer curve and a fixed scroll inner curve under a certain range of revolution angle. An opening of the oil injection port is provided on a bottom surface between teeth of the fixed scroll so that the suction working chamber formed, in a radially inner side, by a orbiting scroll inner curve and a fixed scroll outer curve and the suction chamber are positioned not to be linked with the oil injection port.

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Номер записи: 36
04-02-2021 дата публикации

Expander and fuel cell system

Номер: US20210036345A1
Автор: Masakatsu Tsubouchi
Принадлежит: Toyota Motor Corp

Provided is an expander including: an expanding chamber that expands a working fluid introduced and discharges the expanded working fluid; a driving chamber housing a driving mechanism that is driven by expansion energy of the working fluid; an intermediate chamber interposed between the expanding chamber and the driving chamber ; a first seal member that seals a gap between the expanding chamber and the intermediate chamber ; a second seal member that seals a gap between the driving chamber and the intermediate chamber ; and a pressurizing unit that pressurizes a pressurized fluid filling the intermediate chamber.

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Номер записи: 37
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: 38
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: 39
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: 40
26-02-2015 дата публикации

Rotary internal combustion engine

Номер: US20150053170A1
Автор: Qin Hao ZHU
Принадлежит: Individual

This invention is to provide a rotary internal combustion engine, which comprises a stationary cylinder connected with a shell, a plurality of piston claw clamps being movably provided on said stationary cylinder, a rotatable power output shaft pivotally provided on said shell, and an arc plate being fixed on said power output shaft within said shell, and a plurality of piston claw clamps being movably provided on a movable cylinder; wherein three pistons are rotating circumferentially in said movable cylinder and are clamped and released in turn cyclically by said piston claw clamps upon running, respectively, so as to switch working modes sequentially; and a plurality of spring cups are provided outside of said movable cylinder and each has a spring with a push rod provided therein such that said piston claw clamps can be controlled by said arc plate through said spring cups and said push rods.

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Номер записи: 41
13-02-2020 дата публикации

SCROLL FLUID MACHINE

Номер: US20200049010A1
Автор: Iizuka Jiro, ISHII Kodai, MIYAZAWA Kanetaka, Tanaka Yuuta
Принадлежит:

The scroll-type compressor comprises a fixed scroll and an orbiting scroll which are engaged with each other, a front housing for accommodating the fixed scroll and the orbiting scroll, and a rear housing joined to the open end of the front housing . The fixed scroll has the base plate fitted into the front housing , and the flange held at a joint surface between the front housing and the rear housing . Additionally, at least one of the flange of the fixed scroll and the front housing forms therein a recessed portion A or E which permits the fixed scroll to be displaced in an axial direction toward the orbiting scroll due to a pressure difference acting on opposite surfaces of the base plate of the fixed scroll 1. A scroll fluid machine comprising:a fixed scroll and an orbiting scroll engaged with each other;a first housing for accommodating the fixed and orbiting scrolls, anda second housing joined to an open end of the first housing;wherein the fixed scroll has a base plate fitted into the first housing, and a flange held at a joint surface between the first and second housings, andat least one of the flange of the fixed scroll and the first housing has a recessed portion formed therein which permits the fixed scroll to be displaced in an axial direction toward the orbiting scroll due to a pressure difference acting on opposite surfaces of the base plate of the fixed scroll.2. The scroll fluid machine according to claim 1 , wherein the recessed portion formed in the flange of the fixed scroll includes an annular recessed groove facing an inner peripheral end portion of the first housing.3. The scroll fluid machine according to claim 1 , wherein the recessed portion formed in the first housing includes an annular recessed groove or a chamfer positioned in the inner peripheral end portion of the first housing.4. The scroll fluid machine according to claim 1 , wherein a boss claim 1 , into which a shaft portion of a bolt for fastening the first and second housings is ...

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Номер записи: 42
23-02-2017 дата публикации

Scroll type device incorporating spinning or co-rotating scrolls

Номер: US20170051741A1
Автор: Bryce R. Shaffer, Robert W. Shaffer, Russell Vigil
Принадлежит: Bryce R. Shaffer, Robert W. Shaffer, Russell Vigil

A co-rotating scroll is disclosed having a motor having a shaft, a drive scroll connected to the shaft for moving the drive scroll, a driven scroll connected to the drive scroll to be moved by the drive scroll, and an idler shaft for aligning the drive scroll and the driven scroll and for allowing the driven scroll to be moved by the drive scroll.

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Номер записи: 43
01-03-2018 дата публикации

SCROLL FLUID MACHINE

Номер: US20180058451A1
Автор: FUJITA Katsuhiro, Hagita Takayuki, KITAGUCHI Keita, KUWAHARA Takayuki, SATO Hajime, Takeuchi Makoto, YAMAZAKI Hiroshi, YOSHIKAWA Genta
Принадлежит: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.

A scroll fluid machine includes a pair of a fixed scroll () and an orbiting scroll (). The scroll fluid machine has an one-side stepped scroll structure in which a stepped part (E) is provided only at a predetermined position on a tooth bottom surface (D) of a involute spiral wrap (B) of one of the fixed scroll () and the orbiting scroll () in a spiral direction, and a stepped part (E) corresponding to the stepped part (E) on the tooth bottom surface (D) is provided only at a predetermined position on a tooth top surface (C) of a involute spiral wrap (B) of the other scroll in a spiral direction. The stepped part (E) on the tooth bottom surface (D) is provided at a position on an inner side of a spiral end position (F) of the involute spiral wrap (B) at intake closure by an involute angle of n radians in the spiral direction or at a position on an outer side of the inner-side position. 1. A scroll fluid machine comprising a pair of a fixed scroll and an orbiting scroll that include respective involute spiral wraps erected on end plates and meshed with each other in a facing manner ,the scroll fluid machine having a one-side stepped scroll structure in which a stepped part is provided only at a predetermined position on a tooth bottom surface of the involute spiral wrap of one of the fixed scroll and the orbiting scroll in a spiral direction, and a stepped part corresponding to the stepped part of the tooth bottom surface is provided only at a predetermined position on a tooth top surface of the involute spiral wrap of the other scroll in a spiral direction,wherein the stepped part on the tooth bottom surface is provided at a position on an inner side of a spiral end position of the corresponding involute spiral wrap at intake closure by an involute angle of π radians in the spiral direction or at a position on an outer side of the inner-side position.2. A scroll fluid machine comprising a pair of a fixed scroll and an orbiting scroll that include respective involute ...

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Номер записи: 44
02-03-2017 дата публикации

ROTARY MACHINE

Номер: US20170058673A1
Автор: Anderson William, Lacy Clive B., Lukaczyk Trent, Lukaczyk William, Meldolesi Riccardo
Принадлежит:

The disclosure provides rotary machines that include, in one embodiment, a rotatable shaft defining a central axis A, the shaft having a first end and a second end. The shaft can have an elongate first island disposed thereon. The first island can have a body with a volume generally defined between front and rear surfaces that are spaced apart. The front and rear surfaces can lie in a plane parallel to a radial axis R. The perimeters of the front and rear surfaces can define a curved perimeter surface therebetween. The disclosure further provides embodiments having stationary islands and casings that rotate about the island. 1. A rotary machine , comprising:a) a rotatable casing defining a central axis A, the casing defining a cavity therein for receiving a stationary first island;b) a stationary first island disposed in the cavity of the rotatable casing, the first island having a body with a volume generally defined between front and rear surfaces that are spaced apart, the front and rear surfaces lying in a plane parallel to a radial axis R, the front and rear surfaces having a rounded, non-circular shape, the perimeters of the front and rear surfaces defining a curved perimeter surface therebetween, the stationary first island defining a first set of fluid passages therethrough for passing a working fluid therethrough, a second set of fluid passages for passing a coolant therethrough, and a third set of fluid passages therethrough for passing a lubricant therethrough;c) a stationary front side plate disposed adjacent to the front surface of the first island;d) a stationary rear side plate disposed adjacent to the rear surface of the first island, the stationary rear side plate defining a plurality of ports passing therethrough in fluid communication with the first and second sets of fluid passages; ande) a first contour assembly disposed between the front side plate and the rear side plate, the first contour assembly being attached to the casing proximate an ...

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Номер записи: 45
10-03-2016 дата публикации

Compact Energy Cycle Construction Utilizing Some Combination of a Scroll Type Expander, Pump, and Compressor for Operating According to a Rankine, an Organic Rankine, Heat Pump, or Combined Orgainc Rankine and Heat Pump Cycle

Номер: US20160069219A1
Автор: Shaffer Bryce R., Shaffer Robert W.
Принадлежит:

A compact energy cycle construction that operates as or in accordance with a Rankine, Organic Rankine, Heat Pump, or Combined Organic Rankine and Heat Pump Cycle, comprising a compact housing of a generally cylindrical form with some combination of a scroll type expander, pump, and compressor disposed therein to share a common shaft with a motor or generator and to form an integrated system, with the working fluid of the system circulating within the housing as a torus along the common shaft and toroidally within the housing as the system operates. 1. A compact energy cycle construction that utilizes a working fluid in its operation , comprising:a housing of a cylindrical form,a plurality of energy cycle devices disposed within said housing and interconnected to form an integrated system operable in accordance with an energy cycle, at least two of which energy cycle devices include a rotatable hollow shaft shared thereby as a common shaft,an evaporator located within the rotatable hollow shaft, andsaid system effecting circulation of the working fluid in a torus within said housing as said system operates, with the working fluid flowing through the rotatable hollow shaft for an evaporation process of the working fluid to take place within the rotatable hollow shaft and the working fluid flowing within the housing in a first path and a second path for a condensation process of the working fluid to take place, the first path and the second path sharing the evaporator but having distinct condenser flow paths.2. The construction of wherein said energy cycle is one of a Rankine Cycle claim 1 , an Organic Rankine Cycle claim 1 , a Heat Pump Cycle claim 1 , or a Combined Heat Pump and Organic Rankine Cycle.3. The construction of wherein said common shaft is hollow and includes a central passageway therethrough for the transit through said hollow shaft of the working fluid.4. The construction of including a heat transfer portion that employs a heat transfer fluid during its ...

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Номер записи: 46
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: 47
12-03-2015 дата публикации

Rotor pump and rotary machinery comprising same

Номер: US20150071805A1
Автор: QINGFENG Sun
Принадлежит: Emerson Climate Technologies Suzhou Co Ltd

The present invention relates to a rotor pump ( 10 ), comprising: a pump body ( 50 A) capable of being rotatably driven and forming an accommodation cavity ( 52 ) therein; a pump wheel ( 20, 20 A) having a main body part ( 22 ) capable of rotating in the accommodation cavity and a first shaft part ( 24 ) axially extending from the main body part; and a sealing plate ( 30 ) comprising an eccentric hole ( 32 ) being eccentric relative to the rotation axis of the pump body; the first shaft part is rotatably fitted in the eccentric hole; a suction channel ( 25 ) is formed on one side of the pump wheel, and a discharge channel is formed on the other side of the pump wheel; the suction channel and the discharge channel are respectively in fluid communication with a compression cavity formed between the outer circumference of the pump wheel and the inner circumference of the accommodation cavity. The present invention also relates to a rotary machinery comprising the rotor pump. The rotor pump of the present invention has a simple structure, fewer components and low cost.

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Номер записи: 48
29-05-2014 дата публикации

WANKEL ENGINE ROTOR

Номер: US20140147320A1
Автор: GAGNON-MARTIN David, GAUVREAU Jean-Gabriel
Принадлежит: PRATT & WHITNEY CANADA CORP.

A rotor for a Wankel engine including a plurality of ribs extending from a bearing support to each one of the flanks, the plurality of ribs including, for each flank, first and second ribs connected to the flank between the recess and a respective one of the apex portions. The first and second ribs are curved along at least a portion thereof, and/or the first and second ribs are closest to the respective apex portion and connected to the flank adjacent a junction between a portion of the flank defining the recess and a respective portion of the flank connected thereto. A method of reducing pinching of apex seals in a rotor of a Wankel engine is also discussed. 1. A rotor for a Wankel engine comprising:two axially spaced apart end faces having a generally triangular profile with outwardly arched sides and three circumferentially spaced apex portions; a recess portion defining a recess with respect to the corresponding one of the arched sides to form part of a combustion chamber, the recess portion extending from a leading end to a trailing end of the recess,', 'a leading portion extending along the corresponding one of the arched sides from one of the apex portions to the recess portion at the leading end, and', 'a trailing portion extending along the corresponding one of the arched sides from the recess portion at the trailing end to another one of the apex portions;, 'a peripheral face extending between the end faces and defining three flanks, each flank extending between two of the apex portions, each flank havinga bearing support extending between the end faces to support a rotor bearing, the bearing support having a central axis corresponding to a central axis of the rotor; anda plurality of ribs extending between the end faces from the bearing support to each one of the flanks, the plurality of ribs including, for each flank, a first rib closest to the one of the apex portions and a second rib closest to the other one of the apex portions, the first rib being ...

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Номер записи: 49
29-05-2014 дата публикации

FLUID DEVICE WITH PRESSURIZED ROLL POCKETS

Номер: US20140147321A1
Автор: Lucas Jay P., MEEHAN TIMOTHY I.
Принадлежит: EATON CORPORATION

A method for pressurizing a roll pocket of a displacement assembly of a fluid device includes providing a fluid device having a displacement assembly. The displacement assembly includes a ring defining a central bore and roll pockets disposed about the central bore. Rolls are disposed in the roll pockets. A rotor is disposed in the central bore. The ring, the rolls and the rotor define a plurality of expanding and contracting volume chambers. Fluid is communicated from a first port of the fluid device and a second port of the fluid device to each of the roll pockets so that when the volume chamber immediately before one of the roll pockets and the volume chamber immediately after that roll pocket are both in fluid communication with one of the first and second ports, that roll pocket is in fluid communication with the other of the first and second ports. 1. A fluid device comprising:a valve member defining a first plurality of fluid passages in fluid communication with a first fluid port of the fluid device and a second plurality of fluid passages in fluid communication with a second fluid port of the fluid device; a ring defining a central bore and a plurality of roll pockets disposed about the central bore;', 'a plurality of rolls disposed in the plurality of roll pockets;', 'a rotor disposed in the central bore, wherein the ring, the plurality of rolls and the rotor define a plurality of expanding and contracting volume chambers; and', 'wherein fluid is communicated to each of the roll pockets so that when the volume chambers immediately adjacent to one of the roll pockets are in fluid communication with one of the first and second ports, that roll pocket is in fluid communication with the other of the first and second ports., 'a displacement assembly in commutating fluid communication with the valve member, the displacement assembly including2. The fluid device of claim 1 , wherein each of the roll pockets includes a channel into which fluid is communicated.3. ...

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Номер записи: 50
18-03-2021 дата публикации

TESTED PRODUCTS OF PDM PERFORMANCE TESTING DEVICE

Номер: US20210080355A1
Автор: Cariveau Peter Thomas, Gonzalez Jorge A., Lu Jing, McCalip Jonathan Jared, Miller Timothy Mark
Принадлежит:

An adapted elastomer compound, in which the adaptation is based at least in part on load performance data of a rotor/stator test coupon as evaluated on a test apparatus. The test coupon's stator section includes the original elastomer compound before adaptation thereof. The test apparatus includes a motor, a brake, and at least one sensor disposed to evaluate load performance data of the test coupon. The load performance data is the product of the process comprising the steps of: (a) rotating either the rotor section or the stator section on the test apparatus, wherein such rotation section actuates corresponding rotation of the other of the rotor section and the stator section; (b) applying a braking torque to the actuated rotor section or stator section; and (c) responsive to step (b), evaluating load performance data of the test coupon. 1. An adapted elastomer compound , in Which the adapted elastomer compound is an adaptation of an original elastomer compound , wherein the adaptation is based at least in part on load performance data of a rotor/stator test coupon as evaluated on a test apparatus , the test apparatus comprising:the rotor/stator test coupon, wherein the test coupon includes a rotor section received inside a stator section, and wherein the stator section includes the original elastomer compound;a motor, the motor disposed to rotate the rotor section;a brake, the brake disposed to exert a braking torque on the stator section; andat least one sensor disposed to evaluate load performance data of the test coupon;wherein the load performance data is the product of the process comprising the steps of:(a) rotating the rotor section on the test apparatus, wherein rotation of the rotor section actuates corresponding rotation of the stator section;(b) applying the braking torque to said stator section rotation actuated in step (a); and(c) responsive to step (b), evaluating, load performance data of the test coupon.2. The adapted elastomer compound of claim 1 ...

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Номер записи: 51
19-03-2020 дата публикации

Mechanism with rotating vanes

Номер: US20200088034A1
Автор: Bogdan GROBELNY
Принадлежит: Individual

This invention describes a mechanism containing two coaxial rotators, embedded on a driveshaft, (1a, 1b) that spin alternately with two velocities. Each rotator has at least two vanes (2) and during the rotators' spin chambers of variable capacities form between the vanes. When the vanes touch together the velocities of the rotators change (2). Rotation speed changes from V1 to V2 and vice-versa are enabled by gearshifts consisting of two-speed ratchets (3) interlocked with rotators' shafts (1a, 1b) that transmit force from and to steering ratchets (4). At a constant velocity of the steering ratchet (4) after its every 180° rotation the angular velocity of the two-speed ratchet (3) and rotator change. The correct functioning of the whole mechanism is provided by engagement of the steering ratchet, transporting force from and to the two-speed ratchet (3), with the coaxial steering ratchet (4) transporting force from the rotator (1b).

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Номер записи: 52
12-04-2018 дата публикации

ROTARY DEVICE AND A METHOD OF DESIGNING AND MAKING A ROTARY DEVICE

Номер: US20180100502A1
Автор: Ardron Marcus, DYE Anthony Osborne, Moeller Gunnar
Принадлежит:

The invention provides a rotary device comprising a first rotor rotatable about a first axis and having at its periphery a recess bounded by a curved surface, and a second rotor counter-rotatable to said first rotor about a second axis, parallel to said first axis, and having a radial lobe bounded by a curved surface, the first and second rotors being coupled for intermeshing rotation, wherein the first and second rotors of each section intermesh in such a manner that on rotation thereof, a transient chamber of variable volume is defined, the transient chamber having a progressively increasing or decreasing volume between the recess and lobe surfaces, the transient chamber being at least in part defined by the surfaces of the lobe and the recess; the ratio of the maximum radius of the lobe rotor and the maximum radius of the recess rotor being greater than 1. 115.-. (canceled)16. A rotary device comprising a first rotor rotatable about a first axis and having at its periphery a recess bounded by a curved surface , and a second rotor counter-rotatable to said first rotor about a second axis , parallel to said first axis , and having a radial lobe bounded by a curved surface , the first and second rotors being coupled for intermeshing rotation , whereinthe first and second rotors of each section intermesh in such a manner that on rotation thereof, a transient chamber of variable volume is defined for acting on working fluid in order to reduce its volume in the case of compression or for being acted on by working fluid to allow increase in its volume in the case of expansion, the transient chamber being defined between interacting surfaces of the lobe and recess rotor, the transient chamber having a progressively decreasing or increasing volume between the recess and lobe surfaces, the transient chamber being at least in part defined by the surfaces of the lobe and the recess;a ratio of the maximum radius of the lobe rotor and the maximum radius of the recess rotor ...

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Номер записи: 53
26-03-2020 дата публикации

Scroll fluid machine

Номер: US20200095993A1
Автор: Hajime Sato, Takuma YAMASHITA, Yohei Hotta, Yoshiyuki Kimata
Принадлежит: Mitsubishi Heavy Industries Thermal Systems Ltd

In this scroll fluid machine, a tip seal ( 7 ) that is in contact with facing end plates ( 5 a ) and that is for sealing in a fluid is provided to a tip seal groove ( 3 d ) formed on the tooth tip of a wall ( 3 b ). The tooth bottoms of the end plates ( 5 a ) have a shape in which a central section is deeper than a side section ( 5 d 3 ) in a width direction orthogonal to the spiral direction of a wall ( 5 b ). During operation, the protrusion amount (δ) when the tip seal ( 7 ) protrudes from the tooth tip of the wall ( 3 b ) in an inclined section and is in contact with the facing end plates is greater than the protrusion amount (δ) when the tip seal ( 7 ) protrudes from the tooth tip of the wall ( 3 b ) in a flat section and is in contact with the facing end plates.

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Номер записи: 54
04-04-2019 дата публикации

SCROLL COMPRESSOR

Номер: US20190101116A1
Автор: HIRAMI Tetsuro, Koyama Shuhei, Masumoto Koji
Принадлежит:

A scroll compressor includes an orbiting scroll including an end plate and a spiral element on the end plate, a fixed scroll including an end plate and a spiral element on the end plate, and an Oldham ring including a support. The scroll compressor satisfies a relation of δ1>δ2, where δ1 denotes each of the axial length of a gap between the tip of the spiral element of the orbiting scroll and the end plate of the fixed scroll and a gap between the tip of the spiral element of the fixed scroll and the end plate of the orbiting scroll, and δ2 denotes the axial length of a gap between the end plate of the orbiting scroll and the support of the Oldham ring. 1. A scroll compressor , comprising:a fixed scroll including an end plate and a spiral element on the end plate;an orbiting scroll including an end plate and a spiral element on the end plate of the orbiting scroll, the spiral element of the orbiting scroll engaging with the spiral element of the fixed scroll to define a compression chamber;a crankshaft configured to drive the orbiting scroll;a frame supporting the orbiting scroll across the orbiting scroll from the fixed scroll; andan Oldham ring disposed between the end plate of the orbiting scroll and the frame, the Oldham ring being configured to prevent the orbiting scroll from rotating to allow the orbiting scroll to orbit against the fixed scroll,the Oldham ring including a ring portion that is annular, a surface of the ring portion facing the end plate of the orbiting scroll including a support to contact the orbiting scroll when the orbiting scroll tilts during an orbiting motion of the orbiting scroll,{'b': 1', '2', '1', '2, 'the scroll compressor satisfying a relation of δ>δ, where δ denotes an axial length of each of a gap between a tip of the spiral element of the orbiting scroll and the end plate of the fixed scroll and a gap between a tip of the spiral element of the fixed scroll and the end plate of the orbiting scroll, and δ denotes an axial length ...

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Номер записи: 55
19-04-2018 дата публикации

Electromagnetic only vane coordination of a cat and mouse engine

Номер: US20180106151A1
Автор: Anatoli GALIN, Natalia Galin, Oleksandr GALIN, Volodymyr GALIN
Принадлежит: Individual

A rotary-vane internal combustion engine of the cat and mouse or scissor type with coordinated rotation of two co-axial shafts with position sensors creating chambers of variable volume for intake, compression, power and exhaust strokes. A reversible electric generator motor on at least one of the shafts with an electronic control system for current, an energy storage unit and electrical load. The total work done and angular speed is calculated or empirically determined while an alternating accelerating or decelerating torque is applied for a continuous, uniform rotation cycle.

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Номер записи: 56
29-04-2021 дата публикации

Pressure reducer for rotary internal combustion engine

Номер: US20210123345A1
Автор: Samuel MOUSSA
Принадлежит: Cogenergy Suisse SA

A pressure reducer for a rotary internal combustion engine comprises a housing ( 1 ) accommodating a first shaft ( 6 ) and a second shaft ( 8 ) running parallel to each other through the housing ( 1 ), and a first rotor ( 7 ) on the first shaft ( 6 ) and a second rotor ( 9 ) on the second shaft ( 8 ). The first rotor ( 7 ) and the second rotor ( 9 ) are configured in a meshing arrangement, when the first shaft ( 6 ) and the second shaft ( 8 ) rotate in counter direction to each other. The first rotor ( 6 ) comprises several radial extensions ( 10 ) having convex shaped outer flanks ( 11 ), and the second rotor ( 9 ) comprises several radial wings ( 13 ) defining indentations ( 14 ) between two wings ( 13 ) having a concave shaped surface ( 15 ). A pressure expansion chamber ( 17 ) is defined by a volume between a convex shaped flank ( 11 a ) of an extension ( 10 a ) of the first rotor ( 7 ) and a concave shaped surface ( 15 a ) of an indentation ( 14 a ) of the second rotor ( 9 ), such that an outer tip ( 12 a ) of the radial extension ( 10 a ) abuts on the concave shaped surface ( 15 a ) of the indentation ( 14 a ) and an outer edge ( 16 a ) of the indentation ( 14 a ) abuts on the convex shaped flank ( 11 a ) of the extension ( 10 a ). In rotation the tip ( 12 a ) slides over the concave surface ( 15 a ) of the indentation ( 14 a ) and the edge ( 16 a ) of the indentation ( 14 a ) slides along the convex flank ( 11 a ), thereby expanding the volume of the pressure expansion chamber ( 17 ).

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Номер записи: 57
27-04-2017 дата публикации

INTERNAL BEARING PLATE FOR GEARMOTOR ASSEMBLY

Номер: US20170114641A1
Автор: Hilton Daniel E., Hutsler Jeffrey M., Johnson Philip S., Michaels Paul G.
Принадлежит: NIDEC MOTOR CORPORATION

A motor includes a housing, a shaft, a bearing, a bearing plate, and a seal. The housing includes first and second housing components directly engaging one another along a housing interface. The housing at least in part defines a sealed chamber. The shaft is at least in part received in the chamber. The bearing rotatably supports the shaft. The bearing plate defines a bearing housing at least substantially receiving the bearing. The housing circumscribes the bearing plate such that the bearing plate is enclosed within the housing. The bearing plate is fixed to a supporting one of the housing components and directly engages the supporting one of the housing components along a bearing plate interface. The seal is disposed along at least one of the interfaces. 1. A motor comprising:a housing including first and second housing components directly engaging one another along a housing interface,said housing at least in part defining a sealed chamber;a shaft at least in part received in the chamber;a bearing rotatably supporting the shaft;a bearing plate defining a bearing housing at least substantially receiving the bearing,said housing circumscribing the bearing plate such that the bearing plate is enclosed within the housing,said bearing plate being fixed to a supporting one of said housing components and directly engaging said supporting one of the housing components along a bearing plate interface; anda seal disposed along at least one of said interfaces.2. The motor of claim 1 ,said seal being disposed along the housing interface.3. The motor of claim 1 ,said housing interface and said bearing plate interface being at least substantially co-planar.4. The motor of claim 1 ,said first housing component defining an at least substantially flat first engagement face,said second housing component defining an at least substantially flat second engagement face abutting the first engagement face along the housing interface,said second housing component being the supporting ...

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Номер записи: 58
05-05-2016 дата публикации

SCROLL EXPANDER

Номер: US20160123147A1
Автор: FUJIOKA Tamotsu, Ito Hiroshi, IZUMI Takaaki, UNAMI Atsushi
Принадлежит:

A scroll expander includes a driving scroll body having a first axis line a driven scroll body having a second axis line shifted with respect to the first axis line, a bearing plate including two plates coupled to the driven scroll body and having the second axis line a cylindrical driving pin attached to the driving scroll body, and a cylindrical guide ring attached to the bearing plate and having an inner diameter larger than an outer diameter of the driving pin. The driving pin includes an outer circumferential surface in contact with an inner circumferential surface of the guide ring. A hard film including diamond-like carbon is formed on the outer circumferential surface of the driving pin. The inner circumferential surface of the guide ring includes a polymer resin material with self-lubricity. 1. A scroll expander to which steam is supplied as a working medium , comprising:a driving scroll body that includes a pair of driving end plates and a driving wrap formed on each of the pair of driving end plates, and has a first axis line as a rotary shaft line;a driven scroll body that includes a driven end plate and a driven wrap formed on each of both surfaces of the driven end plate, is disposed between the pair of driving end plates, and has, as a rotary shaft line, a second axis line shifted with respect to the first axis line;a bearing plate that is disposed so as to interpose the driven scroll body, includes a pair of plates coupled to the driven scroll body, and has the second axis line as a rotary shaft line;a cylindrical driving pin that is attached to the driving scroll body, and protrudes from the driving end plate to the bearing plate; anda cylindrical guide ring that is attached to the bearing plate, and includes an inner diameter larger than an outer diameter of the driving pin, whereina film including diamond-like carbon is formed on an outer circumferential surface of the driving pin in contact with an inner circumferential surface of the guide ring, ...

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Номер записи: 59
05-05-2016 дата публикации

PISTON MACHINE APPARATUS, AND METHOD OF VARYING A VOLUME OF A CHAMBER OF THE APPARATUS

Номер: US20160123148A1
Автор: Korolev Alexander
Принадлежит:

A method of varying a volume of a chamber defined by a first rotor, a second rotor, and a piston in a housing of a piston machine apparatus involves: causing the first rotor to rotate around a first axis of rotation; causing the second rotor to rotate around a second axis of rotation different from the first axis of rotation; and causing the piston to slide, in response to rotation of the second rotor around the second axis of rotation, along a first linear path relative to a first coupling portion of the first rotor coupled to the piston. Causing the second rotor to rotate around the second axis of rotation involves causing a second coupling portion of the second rotor coupled to the piston to revolve around the second axis of rotation in a path around the first coupling portion. Piston machine apparatuses and uses thereof are also disclosed. 1. A method of varying a volume of a chamber defined by a first rotor , a second rotor , and a piston in a housing of a piston machine apparatus , the method comprising:causing the first rotor to rotate around a first axis of rotation;causing the second rotor to rotate around a second axis of rotation different from the first axis of rotation; andcausing the piston to slide, in response to rotation of the second rotor around the second axis of rotation, along a first linear path relative to a first coupling portion of the first rotor coupled to the piston;wherein causing the second rotor to rotate around the second axis of rotation comprises causing a second coupling portion of the second rotor coupled to the piston to revolve around the second axis of rotation in a path around the first coupling portion.2. The method of wherein causing the piston to slide along the first linear path comprises maintaining a relative orientation of the piston relative to the first rotor.3. The method of further comprising causing the piston to slide along a second linear path relative to the second coupling portion in response to rotation of ...

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Номер записи: 60
05-05-2016 дата публикации

Scroll compressor

Номер: US20160123326A1
Автор: James F. Fogt, Sunil S. Kulkarni
Принадлежит: Emerson Climate Technologies Inc

A compression mechanism can include a first scroll member, a second scroll member, and an Oldham coupling. The first scroll member can include a base plate. The second scroll member can meshingly engaged with the first scroll member, and include a first radially extending slot. The Oldham coupling can include a ring portion disposed about the base plate and a first radially extending key portion disposed in the first radially extending slot. The ring portion and the key portion can include a pair of upper surfaces and a pair of lower surfaces. At least one pair of upper surfaces or lower surfaces can be substantially coplanar.

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Номер записи: 61
25-04-2019 дата публикации

Scroll fluid machine

Номер: US20190120230A1
Автор: Hajime Sato, Yohei Hotta, Yoshiyuki Kimata
Принадлежит: Mitsubishi Heavy Industries Thermal Systems Ltd

Provided is a scroll fluid machine that makes it possible to attenuate the bending stress applied to the base of a wall body having an inclined section. The scroll fluid machine is provided with a wall body inclined section in which the distance between the facing surfaces of an end plate of a fixed scroll and an end plate of a rotating scroll that face each other continuously decreases from the outer circumferential side toward the inner circumferential side. A mesh clearance that is a gap between wall bodies formed when the wall bodies mesh with each other is larger on the outer circumferential side of the inclined section than on the inner circumferential side of the inclined section. The mesh clearance is made larger by drawing the wall surface of a wall body further back toward the central side of the wall body in the thickness direction than the original wall surface profile thereof.

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Номер записи: 62
03-06-2021 дата публикации

Compressor Having Capacity Modulation Assembly

Номер: US20210164470A1
Автор: Masao Akei, Roy J. Doepker
Принадлежит: Emerson Climate Technologies Inc

A compressor may include a shell, first and second scrolls, a seal assembly, a modulation control chamber, and a modulation control valve. The first scroll may include a first end plate having a biasing passage extending therethrough. The seal assembly may isolate a discharge pressure region from a suction pressure region. The seal assembly and the first scroll may define an axial biasing chamber therebetween that communicates with the axial biasing chamber and a first pocket between the first and second scrolls. The modulation control chamber may be fluidly coupled with the biasing chamber by a first passage. The modulation control valve may be fluidly coupled with the modulation control chamber by a second passage and movable between a first position allowing communication between the second passage and the suction pressure region and a second position restricting communication between the second passage and the suction pressure region.

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Номер записи: 63
08-09-2022 дата публикации

GEAR WHEEL HAVING AN IMPROVED PROFILE

Номер: US20220282621A1
Автор: Ceruti Andrea, ROSSI MANUELE
Принадлежит: Settima Meccanica S.r.l.

A gear wheel () for a hydraulic apparatus is rotatable about an axis of rotation (H-H) and comprises a plurality of teeth () having a sectional profile (P) and being adapted to mesh with respective teeth of another gear wheel during a rotational motion about the axis of rotation (H-H), wherein at least one tooth () is shaped so as to have at least one cutting edge () configured to remove material, in particular chips, from a body which is contacted by said cutting edge during the rotation of the gear wheel (). Suitably, the cutting edge () is defined by at least one groove () which is lowered by amount from 0.2% to 5% of the height (H′) of the tooth (), said groove () decreasing away from the cutting edge () along the profile (P). 1. A gear wheel for a hydraulic apparatus , comprising a plurality of teeth and arranged to be rotatable about an axis of rotation , said teeth having a sectional profile and being adapted to mesh with respective teeth of another gear wheel during a rotational motion about the axis of rotation , wherein at least one tooth is shaped so as to have at least one cutting edge configured to remove material from a body which is contacted by said cutting edge during the rotation of said gear wheel , characterized in that said cutting edge is defined by at least one grove which is lowered by an amount from 0.2% to 5% of the height of said tooth , said groove decreasing away from the cutting edge along the profile.2. The gear wheel according to claim 1 , wherein the groove forms a projection which protrudes with respect to the rounded profile of the tooth by an amount from 0.01 mm to 1 mm.3. The gear wheel according to claim 1 , wherein the cutting edge is at a top portion of said tooth claim 1 , the top portion being the tooth portion farthest from the center of the primitive circle of the gear wheel.4. The gear wheel according to claim 1 , wherein the cutting edge extends over the entire length of the tooth claim 1 , the length of the tooth being ...

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Номер записи: 64
30-04-2020 дата публикации

HEAT MACHINE CONFIGURED FOR REALIZING HEAT CYCLES AND METHOD FOR REALIZING HEAT CYCLES BY MEANS OF SUCH HEAT MACHINE

Номер: US20200131942A1
Автор: OLIVOTTI Sergio
Принадлежит: I.V.A.R. S.P.A.

A heat machine for realizing a heat cycle, operating with a thermal fluid includes a drive unit. A first rotor and a second rotor, each having three pistons slidable in an annular chamber, wherein the pistons delimit six variable-volume chambers. The drive unit includes a transmission to convert the rotary motion with first and second periodically variable angular velocities of said first and second rotor, offset from each other, into a rotary motion at a constant angular velocity. The heat machine further includes a compensation tank, to accumulate the compressed fluid from the drive unit, a regenerator to preheat the fluid, a heater to superheat the fluid circulating in the serpentine coil, a burner, to supply the thermal energy to the heater; wherein the regenerator, in fluid communication with the drive unit, is configured to acquire energy-heat from the exhausted fluid and to preheat the fluid sent to the heater. 2. The heat machine according to claim 1 , whereinthe first section of the drive unit is in fluid connection with the external environment via a pipe, so that the ambient air can be suctioned into the chamber, and wherein the heat machine comprises a metering pump in fluid connection with a distilled water tank and arranged so as to enable a predefined amount of distilled water to be injected in the air circuit by means of an injector, said predefined amount being capable of increasing the unit power of the drive unit and of ensuring lubrication of the cylinder.3. The heat machine according to claim 1 , comprising:a cooler that is operatively interposed between the low temperature outlet of the regenerator and the inlet of the heater,{'b': 1', '1, 'wherein the thermal fluid, exiting from the cooler at temperature T, passes into a pipe, passes through a condensate trap, where the water in the thermal fluid is condensed and separated from the air, passes into a pipe at temperature T′, passes through the suctioning opening and following the movement of ...

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Номер записи: 65
09-05-2019 дата публикации

INTERNAL BEARING PLATE FOR GEARMOTOR ASSEMBLY

Номер: US20190136692A1
Автор: Hilton Daniel E., Hutsler Jeffrey M., Johnson Philip S., Michaels Paul G.
Принадлежит: NIDEC MOTOR CORPORATION

A motor includes a housing, a shaft, a bearing, a bearing plate, and a seal. The housing includes first and second housing components directly engaging one another along a housing interface. The housing at least in part defines a sealed chamber. The shaft is at least in part received in the chamber. The bearing rotatably supports the shaft. The bearing plate is enclosed within the housing. The bearing plate supports the bearing within the housing. The seal is disposed along the housing interface. The bearing plate is spaced inwardly from the housing interface and the seal. 1. A motor comprising:a housing comprising a first housing component and a second housing component directly engaging each other along a housing interface,said housing defining a sealed chamber;a shaft at least in part received in said sealed chamber;a bearing rotatably supporting said shaft;a bearing plate enclosed within said housing,said bearing plate supporting said bearing within said housing; anda seal disposed along the housing interface;said bearing plate being spaced inwardly from the housing interface and said seal.2. The motor in accordance with claim 1 ,said bearing plate being coupled to said second housing component,said first housing component including a lip circumscribing said bearing plate.3. The motor in accordance with claim 2 ,said lip engaging said second housing component along the housing interface.4. The motor in accordance with claim 3 ,said lip including a radially innermost perimetrical surface,said bearing plate including a radially outermost perimetrical surface spaced from said radially innermost perimetrical surface of said lip such that a perimetrical gap is formed therebetween.5. The motor in accordance with claim 2 ,said lip defining a planar first engagement surface,said second housing component including a planar second engagement surface abutting said first engagement surface along the housing interface.6. The motor in accordance with claim 5 ,said bearing ...

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Номер записи: 66
15-09-2022 дата публикации

AIR-FUEL SYSTEM FOR A CIRCULATING PISTON ENGINE

Номер: US20220290629A1
Автор: Bonin Walter T.
Принадлежит: WB Development Company, LLC

An engine includes a housing and a combustion assembly. The combustion assembly includes an annular bore and a combustion piston assembly disposed within the annular bore. The combustion piston assembly includes a set of pistons, a first sealing ring connected to each piston and a second sealing ring connected to each piston. The second sealing ring is configured to provide selective access between the annular bore and at least one fluid conduit carried by the engine. The engine includes at least one valve configured to move between a first position within the annular bore to allow the combustion piston assembly to travel within the annular bore from a first location proximate to the at least one valve to a second location distal to the at least one valve and a second position within the annular bore to define a combustion chamber. 1. An engine , comprising:a housing; an annular bore defined by the engine, and', a set of pistons;', 'a sealing ring connected to each piston of the set of pistons, the sealing ring configured to provide selective access between the annular bore and at least one fluid conduit carried by the engine; and, 'a combustion piston assembly disposed within the annular bore, the combustion piston assembly comprising], 'a combustion assembly carried by the housing, the combustion assembly comprisingat least one valve configured to move within the annular bore between a first position to define a travel path for at least one piston of the set of pistons and a second position to define a combustion chamber relative to the at least one piston of the set of pistons.2. The engine of claim 1 , wherein the at least one valve comprises at least one rotary valve having a circular faceplate and a wall structure disposed at an outer periphery of the faceplate claim 1 , a portion of the at least one rotary valve disposed within the annular bore such that the axis of rotation of the wall structure is substantially perpendicular to an axis of rotation of a ...

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Номер записи: 67
31-05-2018 дата публикации

Compressor Having Capacity Modulation Assembly

Номер: US20180149155A1
Автор: Akei Masao, DOEPKER Roy J.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor may include a shell, first and second scrolls, a seal assembly, a modulation control chamber, and a modulation control valve. The first scroll may include a first end plate having a biasing passage extending therethrough. The seal assembly may isolate a discharge pressure region from a suction pressure region. The seal assembly and the first scroll may define an axial biasing chamber therebetween that communicates with the axial biasing chamber and a first pocket between the first and second scrolls. The modulation control chamber may be fluidly coupled with the biasing chamber by a first passage. The modulation control valve may be fluidly coupled with the modulation control chamber by a second passage and movable between a first position allowing communication between the second passage and the suction pressure region and a second position restricting communication between the second passage and the suction pressure region. 1. A compressor comprising:a shell assembly defining a suction-pressure region and a discharge-pressure region, said shell assembly including a partition separating said suction-pressure region from said discharge-pressure region;a first scroll member disposed within said shell assembly and including a first end plate having a discharge passage, a modulation port, and a first spiral wrap extending from said first end plate;a second scroll member disposed within said shell assembly and including a second end plate having a second spiral wrap extending therefrom, said first and second spiral wraps meshingly engaged and forming a series of pockets during orbital displacement of said second scroll member relative to said first scroll member, said modulation port in communication with a first one of said pockets;a floating seal assembly engaged with said partition and isolating said discharge-pressure region from said suction-pressure region, said floating seal assembly defining an axial biasing chamber containing intermediate-pressure ...

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Номер записи: 68
07-05-2020 дата публикации

AIR-FUEL SYSTEM FOR A CIRCULATING PISTON ENGINE

Номер: US20200141350A1
Автор: Bonin Walter T.
Принадлежит: WB Development Company, LLC

An engine includes a housing and a combustion assembly. The combustion assembly includes an annular bore and a combustion piston assembly disposed within the annular bore. The combustion piston assembly includes a set of pistons, a first sealing ring connected to each piston and a second sealing ring connected to each piston. The second sealing ring is configured to provide selective access between the annular bore and at least one fluid conduit carried by the engine. The engine includes at least one valve configured to move between a first position within the annular bore to allow the combustion piston assembly to travel within the annular bore from a first location proximate to the at least one valve to a second location distal to the at least one valve and a second position within the annular bore to define a combustion chamber. 1. An engine , comprising:a housing; an annular bore defined by the engine, and', a set of pistons;', 'a first sealing ring connected to each piston of the combustion piston assembly, the first sealing ring configured to limit the flow of combustion gas past each piston of the combustion piston assembly along a direction of rotation of the combustion piston assembly, and', 'a second sealing ring connected to each piston of the combustion piston assembly, the second sealing ring configured to provide selective access between the annular bore and at least one fluid conduit carried by the engine; and, 'a combustion piston assembly disposed within the annular bore, the combustion piston assembly comprising], 'a combustion assembly carried by the housing, the combustion assembly comprisingat least one valve configured to move between a first position within the annular bore to allow the combustion piston assembly to travel within the annular bore from a first location proximate to the at least one valve to a second location distal to the at least one valve and a second position within the annular bore to define a combustion chamber relative to ...

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Номер записи: 69
09-06-2016 дата публикации

SCROLL TYPE FLUID MACHINE

Номер: US20160160646A1
Автор: Taguchi Masanori
Принадлежит:

To provide a scroll type fluid machine including a rotation stopping mechanism that can reduce noise released to the outside of the scroll type fluid machine by damping vibration transmitted from a movable scroll to a casing. In a scroll type fluid machine () including a rotation stopping mechanism () for stopping rotation of a movable scroll without hindering revolving motion of the movable scroll () relative to a fixed scroll () fixed to a casing (), the rotation stopping mechanism includes: a support hole () drilled in either one of a base plate () of the movable scroll and a pedestal part () of the casing; a rotation stopping pin () that is fitted into the support hole, and is protruded to the side of the other of the base plate and the pedestal part; a restriction hole () that is drilled in the other of the base plate and the pedestal part, and is loosely fitted with the rotation stopping pin; and a buffer member () interposed, at least in the support hole out of the support hole and the restriction hole, between the support hole and the rotation stopping pin. 1. A scroll type fluid machine provided with a rotation stopping mechanism for stopping rotation of a movable scroll without hindering revolving movement of the movable scroll relative to a fixed scroll fixed to a casing , wherein the rotation stopping mechanism comprises:a support hole that is drilled in either one of a base plate on which a spiral wall of the movable scroll is uprightly installed, and a pedestal part of the casing, which is positioned opposed to the base plate;a rotation stopping pin that is fitted into the support hole, and is protruded to the side of the other of the base plate and the pedestal part;a restriction hole that is drilled in the other of the base plate and the pedestal part, and is loosely fitted with the rotation stopping pin; anda buffer member interposed, at least in the support hole out of the support hole and the restriction hole, between the support hole and the ...

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Номер записи: 70
24-06-2021 дата публикации

Helical Trochoidal Rotary Machines With Offset

Номер: US20210189880A1
Автор: Callaway Bryan Allen, Montie Greg John
Принадлежит:

Rotary positive displacement machines based on trochoidal geometry, that comprise a helical rotor that undergoes planetary motion within a helical stator are described. The rotor can have a hypotrochoidal cross-section, with the corresponding stator cavity profile being the outer envelope of the rotor as it undergoes planetary motion, or the stator cavity can have an epitrochoidal cross-section with the corresponding rotor profile being the inner envelope of the trochoid as it undergoes planetary motion. In some embodiments, the geometry is offset in a manner that provides structural and/or operational advantages in the rotary machine. 1. A rotary machine comprising a stator and a rotor disposed within the stator ,said rotor having a rotor axis and a rotor helical profile, wherein, at any cross-section transverse to said rotor axis along at least a portion of a length of said rotor, said rotor has a rotor shape that is inwardly offset from a hypotrochoidal shape,said stator having a stator axis and a stator helical profile, wherein said stator has a stator shape at any cross-section transverse to said stator axis along at least a portion of a length of said stator that is an outer envelope formed when said rotor shape undergoes planetary motion,wherein said rotor is configured to undergo planetary motion within said stator.2. The rotary machine of wherein claim 1 , at any cross-section transverse to said rotor axis along at least a portion of a length of said rotor claim 1 , said rotor shape is inwardly offset from said hypotrochoidal shape along the normals of said transverse cross-section.3. The rotary machine of wherein claim 1 , at any cross-section transverse to said rotor axis along at least a portion of a length of said rotor claim 1 , said rotor shape is inwardly offset along the normals of the outer surface of said rotor.4. The rotary machine of wherein:the rotor shape has n lobes, where n is an integer;the stator shape has (n−1) lobes;the pitch of the ...

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Номер записи: 71
15-06-2017 дата публикации

Scroll Expander

Номер: US20170167262A1
Автор: Tanaka Yuuta
Принадлежит:

Scroll expander including a bypass passage and a bypass valve configured to open and close the bypass passage without significantly increasing the length in the shaft direction of the scroll expander. Scroll expander includes suction port which allows a high-pressure flow of a working fluid to enter and guides the entering flow of the working fluid into an expansion chamber. Discharge port allows the working fluid expanded to a lower pressure in the expansion chamber to flow out. Bypass passage communicates suction port with the discharge port while bypassing the expansion chamber. Bypass valve is configured to open and close bypass passage . Suction port , bypass passage and a bypass valve attaching portion for attaching the bypass valve are formed in a base plate of the fixed scroll 1. A scroll expander including a fixed scroll and a movable scroll which define an expansion chamber therebetween , the movable scroll being configured to be driven by expansion of working fluid in the expansion chamber , comprising:a suction port which allows a high-pressure flow of the working fluid to enter, and which guides the entering flow of the working fluid into the expansion chamber;a discharge port which allows the working fluid expanded to a lower pressure in the expansion chamber to flow out;a bypass passage through which the suction port communicates with the discharge port while bypassing the expansion chamber; anda bypass valve configured to open and close the bypass passage,wherein the suction port, the bypass passage and a bypass valve attaching portion for attaching the bypass valve are formed in a base plate of the fixed scroll.2. The scroll expander according to claim 1 , wherein the discharge port is formed in a peripheral wall of a housing for housing the movable scroll and for attaching the fixed scroll thereto.3. The scroll expander according to any one of and claim 1 , wherein a sensor attaching portion for attaching a condition detection sensor that is ...

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Номер записи: 72
15-06-2017 дата публикации

SCROLL TYPE FLUID MACHINE, METHOD AND DEVICE FOR FORMING ELASTIC COATING THEREON

Номер: US20170167486A1
Автор: ASAMI Junichi, Sato Toru
Принадлежит:

A coating solution that contains 10 to 20% by weight of epoxy resin serving as a thermosetting resin, 20 to 30% by weight of MoS, and 5 to 10% by weight of graphite, with a remainder thereof constituted by an organic solvent, is sprayed onto a wrap portion side face of an orbiting scroll from a spray nozzle. While spraying the coating solution, the orbiting scroll is rotated on a rotating table and the spray nozzle is moved along a rectilinear movement path toward a radial direction outer side of the orbiting scroll while maintaining an attitude thereof from the start of the spraying process. After applying the coating solution, the coating solution is dried by baking, whereupon a break-in operation is performed. As a result, an elastic coating is formed at a coating thickness that enables elastic deformation in accordance with a clearance between the wrap portion side faces. 1. A device for forming an elastic coating on a scroll type fluid machine , in which an elastic coating is formed on a side face of a spiral wrap portion , the elastic coating is obtained by dispersing a powdered solid lubricant in a synthetic resin that possesses elasticity and is more flexible than a scroll base material constituting the wrap portion , and is formed at a coating thickness that enables elastic deformation relative to an opposing wrap portion side face of another scroll during an operation while ensuring that a clearance is not generated between the wrap portion side faces is formed on a side face of a spiral wrap portion , the device comprising:a rotation device that includes a rotating table on which a scroll constituted by the wrap portion and an end plate is placed fixedly and a driving device for driving the rotating table, and that rotates the scroll placed fixedly on the rotating table about a spiral center of the wrap portion;a coating solution spraying device having a spray nozzle for spraying a coating solution obtained by dissolving constituent components of the ...

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Номер записи: 73
30-05-2019 дата публикации

Rotary engine with pilot subchambers

Номер: US20190162108A1
Автор: Andre Julien, Edwin Schulz, Michael Lanktree, Serge Dussault
Принадлежит: Pratt and Whitney Canada Corp

A rotary engine including at least two pilot subchambers each in parallel fluid communication with the internal cavity, so that each pilot subchamber is in fluid communication with the combustion chambers as the rotor rotates. Each of the at least two pilot subchambers in fluid communication with a corresponding pilot fuel injector. At least one ignition source is configured for igniting fuel in the pilot subchambers. A compound engine assembly and a method of combusting fuel in a rotary engine are also discussed.

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Номер записи: 74
21-06-2018 дата публикации

Device for obtaining mechanical work from a non-thermal energy source (variants)

Номер: US20180171801A1
Автор: Andrey Igorevich DUBINSKIY, Igor Mykolaiovych DUBYNSKYI
Принадлежит: Individual

The invention relates to mechanical engineering. The present device for obtaining mechanical work from a non-thermal energy source comprises a cylindrical housing, a rotor, a vacuum chamber, movable elements, and systems for removal and supply of a working fluid. The rotor is provided with blades and is fastened to the power shaft, disposed inside the housing. The chamber is formed by the outside surface of the bladed rotor and the inside surface of the housing. The movable elements are mounted in diametric opposition inside the housing of the device and divide the chamber into equal parts. The shaft and blades of the rotor are hollow. The inlet ports and outlet ports are provided in surfaces of the rotor blades. Or outlet ports are provided in the housing. The technical result is an increase in the output, efficiency and environmental friendliness of the device, together with a simplified design.

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Номер записи: 75
28-05-2020 дата публикации

GEARING ASSEMBLY

Номер: US20200166108A1
Автор: JENNER Philip
Принадлежит:

The present invention relates to a gearing assembly suitable for use with a rotary engine, compressor or pump. Non-circular gears are used to drive rotors at different relative speeds to increase or decrease the volume of a series of chambers and provide the necessary requirements for intake, compression, combustion and exhaust cycles which are typical of an internal combustion engine. The non-circular gears may physically intermesh or be coupled by way of a belt or chain. The relative movement of the rotors can be controlled according to the application by the ratio of the major to minor axis of the non-circular gears. The non-circular gears may be easily removed without having to disassemble the entire gearing system. 1. A gearing assembly for controlling rotors within a rotary device , the gearing assembly comprising:—a first shaft having a first rotatable shaft element and a second rotatable shaft element, the first rotatable shaft element being coaxially mounted for relative movement with respect to the second rotatable shaft element;a second shaft whose axis is at least substantially parallel to that of the first shaft;first and second non-circular gears residing on the first shaft, the first non-circular gear being configured to rotate with the first rotatable shaft element and the second non-circular gear being configured to rotate with the second rotatable shaft element;third and fourth non-circular gears residing on the second shaft, the third and fourth non-circular gears being mounted for rotating with the second shaft and being arranged so that their major axes are at fixed at 90° to one another;wherein the first non-circular gear is configured to be coupled with the third non-circular gear and the second non-circular gear is arranged to be coupled with the fourth non-circular gear; andwherein the first rotatable shaft element is coupled to a first rotor and the second rotatable shaft element is coupled to a second rotor, the first and second rotors ...

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Номер записи: 76
08-07-2021 дата публикации

GAS EXPANSION DEVICE AND METHOD FOR EXPANDING GAS

Номер: US20210207482A1
Автор: ÖHMAN Henrik
Принадлежит: Atlas Copco Airpower, Naamloze Vennootschap

Gas expansion device for expanding a gas or a gas-liquid mixture, where the gas expansion device includes a gas expansion element with an inlet port for the gas to be expanded and an inlet pipe for the gas to be expanded. The inlet pipe is connected to the inlet port where the gas expansion device includes a first liquid injection point for the injection of liquid, where the first liquid injection point is at a position level with the inlet port or upstream from the inlet port. 115-. (canceled)16. A gas expansion device for expanding a gas or a gas-liquid mixture , whereby the gas expansion device comprises a gas expansion element with an inlet port for the gas to be expanded and an inlet pipe for the gas to be expanded , whereby the inlet pipe is connected to the inlet port , whereby the gas expansion device comprises a first liquid injection point for the injection of liquid , wherein the first liquid injection point is at a position level with the inlet port or upstream from the inlet port , and the expansion device is provided with a liquid separator for separating liquid from gas that is expanded in the gas expansion element , whereby the first liquid injection point is connected to a liquid outlet of the liquid separator.17. The gas expansion device according to claim 16 , wherein the liquid is oil.18. The gas expansion device according to claim 16 , wherein the gas expansion element is a double screw gas expansion element.19. The gas expansion device according to claim 16 , wherein it is provided with means for starting up and switching off a flow of the said liquid to the first liquid injection point.20. The gas expansion device according to claim 19 , wherein the gas expansion device comprises a control unit to control the said means.21. The gas expansion device according to claim 20 , wherein the gas expansion element is coupled to a generator claim 20 , such that the expansion element can drive the generator claim 20 , whereby the control unit is ...

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Номер записи: 77
18-09-2014 дата публикации

Gear Wheel with Profile Capable of Meshing with Semi-Encapsulation in a Geared Hydraulic Apparatus

Номер: US20140271314A1
Автор: Morselli Mario Antonio
Принадлежит:

A gear wheel comprising a plurality of helical teeth, each helical tooth of the gear wheel having a tooth profile meshing with semi-encapsulation in a geared hydraulic apparatus. Each tooth having a profile which falls within a band of tolerance of +− 1/15 of the depth of a nominal tooth defined by a spline function interpolating a plurality of node points having pre-established coordinates {X,Y} with their origin on the gear wheel center. 2. The gear wheel according to claim 1 , wherein the spline function is a cubic natural spline function which is continuous and smooth.3. The gear wheel according to claim 1 , wherein the gear wheel claim 1 , when meshing with a mating gear wheel claim 1 , has a transverse contact ratio comprised between 0.4 and 1.2.4. The gear wheel according to claim 3 , wherein the transverse contact ratio is comprised between 0.7 and 1.1.5. The gear wheel according to claim 3 , wherein the transverse contact ratio is comprised between 0.9 and 1.6. The gear wheel according to claim 3 , wherein the transverse contact ratio is equal to one.7. The gear wheel according to claim 1 , wherein the gear wheel has a ratio between dimensions of face width and pitch circle comprised between 0.5 and 2.8. The gear wheel according to claim 7 , wherein the ratio between dimensions of face width and pitch circle is comprised between 0.7 and 1.25.9. The gear wheel according to claim 7 , wherein the ratio between dimensions of face width and pitch circle is equal to one.10. The gear wheel according to claim 1 , wherein the band of tolerance is of ± 1/20 of the depth of the nominal tooth profile obtained with the spline function.11. The gear wheel according to claim 1 , wherein the band of tolerance is of ± 1/30 of the depth of the nominal tooth profile obtained with the spline function.13. The geared hydraulic apparatus according to claim 12 , wherein the hydraulic apparatus is a hydraulic pump.14. The geared hydraulic apparatus according to claim 12 , wherein ...

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Номер записи: 78
27-07-2017 дата публикации

SCROLL TYPE FLUID MACHINE

Номер: US20170211390A1
Автор: KIKUCHI Seiichi, Takahata Masaaki
Принадлежит:

A shell-integrated fixed scroll includes a cylindrical shell that is integrated with an end plate on which a scroll wrap is erected, and has a proximal end entirely connected with an outer periphery of the end plate and a leading end extending in the axial direction. The wall of the shell partially forms a thick portion having a large thickness from a proximal-end-side end (first) surface to a leading-end-side end (second) surface. In the thick portion, a screw hole for a bolt for fastening a rear housing to the first surface extends from the first surface toward the second surface. A screw hole for a bolt for fastening a front housing to the second surface extends from the second surface toward the first surface. The thick portion is partially cut away in the circumferential direction between the two surfaces to form opposing surfaces facing each other in the axial direction. 1. A scroll type fluid machine comprising an orbiting scroll and a fixed scroll , in which the fixed scroll comprises:a volute scroll wrap that is erected on an end plate;a cylindrical shell that is integrated with the end plate and has a proximal end entirely connected with an outer periphery of the end plate and a leading end extending in the direction in which the scroll wrap is erected; anda thick portion formed by partially increasing the thickness of a wall of the shell from a proximal-end-side end surface of the shell to a leading-end-side end surface of the shell so that in the thick wall of the shell, a screw hole for a first bolt for fastening a first housing to the proximal-end-side end surface extends from the proximal-end-side end surface toward the leading-end-side end surface, and a screw hole for a second bolt for fastening a second housing to the leading-end-side end surface extends from the leading-end-side end surface toward the proximal-end-side end surface,wherein the thick portion is partially cut away in a circumferential direction of the shell between the proximal-end- ...

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Номер записи: 79
02-08-2018 дата публикации

Scroll-Type Fluid Machine and Maintenance Method for Same

Номер: US20180216461A1
Автор: IWANO Kiminori, KOBAYASHI Yoshio, WATANABE Sho
Принадлежит:

The objective of the present invention is to provide a scroll-type fluid machine and maintenance method for same with which reliability and workability are improved by making it possible to supply sufficient grease to necessary parts of an orbiting bearing or auxiliary crank bearing without entailing a complicated operation during maintenance. The present invention provides a scroll-type fluid machine that is provided with a fixed scroll, an orbiting scroll facing the fixed scroll and orbiting, a casing being provided on the outer side of the orbiting scroll in the radial direction, a drive shaft driving the orbiting scroll, an orbiting bearing supporting the drive shaft with respect to the orbiting scroll, and a piping supplying a lubricant to the orbiting bearing, said scroll-type fluid machine being characterized in that: the orbiting scroll is provided with a boss plate that is attached to the drive shaft; the piping is provided in the boss plate; and the tip of the piping faces toward an opening provided between the casing and the fixed scroll or toward an opening provided in the fixed scroll or the casing. 1. A scroll-type fluid machine comprising:a fixed scroll;an orbiting scroll that faces the fixed scroll and makes orbiting movement;a casing that is provided on radially outside of the orbiting scroll;a drive shaft that drives the orbiting scroll;an orbiting bearing that supports the drive shaft with respect to the orbiting scroll; anda piping that supplies lubricant to the orbiting bearing, whereinthe orbiting scroll is provided with a boss plate that is attached to the drive shaft, the piping is provided on the boss plate, and a distal end of the piping faces an opening part provided between the casing and the fixed scroll or an opening part provided on the fixed scroll or the casing.2. The scroll-type fluid machine according to claim 1 , wherein the opening part is provided on a side surface of the casing or a surface of the casing on an opposite side of ...

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Номер записи: 80
02-08-2018 дата публикации

Compact Energy Cycle Construction Utilizing Some Combination Of A Scroll Type Expander, Pump, And Compressor For Operating According To A Rankine, An Organic Rankine, Heat Pump, Or Combined Organic Rankine And Heat Pump Cycle

Номер: US20180216498A1
Автор: Shaffer Bryce R., Shaffer Robert W.
Принадлежит:

A compact energy cycle construction that utilizes a working fluid in its operation is disclosed having a compact housing of a generally cylindrical form, an orbiting scroll type expander, a central shaft which is driven by the expander, a generator having a rotor and a stator with the central shaft being mounted to the rotor for rotating the rotor relative to the stator, a pump mounted to the central shaft, an evaporator positioned between the expander and the generator and surrounding the central shaft, and the orbiting scroll type expander, the central shaft, the generator, the pump, and the evaporator being housed within the compact housing to form an integrated system operable in accordance with an energy cycle. 1. A compact energy cycle construction that utilizes a working fluid in its operation , comprising:a compact housing of a generally cylindrical form;a scroll expander;a central shaft which is driven by the expander;a generator having a rotor and a stator with the central shaft being mounted to the rotor for rotating the rotor relative to the stator;a pump mounted to the central shaft;an evaporator positioned between the expander and the generator and surrounding the central shaft; andthe scroll expander, the central shaft, the generator, the pump, and the evaporator being housed within the compact housing to form an integrated system operable in accordance with an energy cycle.2. The compact energy cycle construction of wherein the scroll expander is an orbiting scroll type expander.3. The compact energy cycle construction of wherein the scroll expander is a spinning type expander.4. The compact energy cycle construction of wherein the pump is a positive displacement type pump.5. The compact energy cycle construction of wherein the evaporator is constructed of extruded aluminum.6. The compact energy cycle construction of wherein the evaporator comprises an extruded aluminum tube having an end cap.7. The compact energy cycle construction of further ...

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Номер записи: 81
11-07-2019 дата публикации

Tangential Force Internal Combustion Engine

Номер: US20190211678A1
Автор: McLean Hugh Bernard
Принадлежит:

A tangential force internal combustion engine invention utilizes the four cycle internal combustion engine process. Working gas chambers are formed via a torroid in the housing and two adjacent piston assemblies. Pistons, ring seals, and inner seal plate elements seal this chamber. The four gas cycles are spaced over the 360 degree torroid chamber with gas ports appropriately placed. One power vane (PV) and one reaction vane (RV) connect to a central shaft with pistons attached to each vane end. The PV produces driving torque on a central shaft through an Overrunning Clutch System (OCS). At specific angles and for controlled durations the PV and VN are slowed, stopped, held to the housing, and then accelerated and coupled to the shaft. Vane movement is controlled by gears, cam ramps, and pin mechanisms operating via three independent but time-coordinated systems. The power vane has no controlled acceleration; combustion pressure serves to immediately couple this vane to the shaft via the OCS. This immediateness and direct-coupling are thought to provide efficiency. 1. an internal combustion engine is which relies on two types of vanes , each of which has cyclic movement incorporating holds such that four Otto cycles can occur within a moving chamber formed by the ends of two adjacent pistons at the vane ends and located in a torroid chamber enclosed via multiple seals.2. a method of moving an engine vane directly with a shaft by locking an overrunning clutch roller element via ramps that push a pin through a hole in said vane thus inserting a finger end into the clearance side of the roller element cavity.3. a vane slot , gears , pin assemblies , and ramps such that a pin is pushed across a timing gear and into a vane slot via a fixed ramped cam in the housing thus initiating or halting movement of said vane upon 90 degrees of timing gear rotation.4. a method of holding vanes to the housing via a circumferential end face ramp in a timing gear such that a pin is ...

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Номер записи: 82
11-07-2019 дата публикации

Scroll-Type Machine

Номер: US20190211820A1
Автор: Bush James William
Принадлежит:

A scroll-type displacement machine, e.g. scroll compressor, has fixed and orbiting scrolls and an Oldham ring to prevent relative rotation between scrolls. A drive module positioned between the orbiting scroll and drive shaft incorporates an eccentric drive system and first and second counterweights for dynamic balancing. The motor, motor bearings, and motor shaft (i.e., drive shaft) are packaged as a separate, modular unit (e.g. “off-the-shelf” motor) that attaches to the compressor frame. The machine is configured as a high-side machine with a low-pressure port at a radial outer portion of the fixed scroll and a high-pressure port or discharge port located in the floor of the orbiting scroll at its axis, with high pressure flow passing over and around the eccentric drive bearing and drive mechanism. The Oldham ring is distributed on a lateral or radial plane of the scroll pair with a portion surrounding a portion of the fixed scroll and another portion surrounding a portion of the orbiting scroll. The ring may be formed as four arcuate members arranged on two levels, to occupy otherwise unused space in the scroll-type machine. 1. A scroll-type displacement machine adapted to move a working fluid between a low-pressure environment and a high-pressure environment , the scroll-type displacement machine comprising:a housing;a scroll pair comprising an orbiting scroll and a fixed scroll, said fixed and orbiting scrolls having respective spiral vanes which interfit with one another;Oldham ring means coupled to said fixed and orbiting scrolls for constraining said orbiting scroll against rotation but permitting said orbiting scroll to enjoy orbital motion about an axis of said fixed scroll;a rotary drive shaft having a rotary axis and adapted for rotary motion about said rotary axis;bearing means supporting said rotary drive shaft within said housing and permitting said rotary drive shaft to enjoy rotary motion within said housing;eccentric drive bearing means positioned ...

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Номер записи: 83
11-08-2016 дата публикации

Exhaust heat recovery device

Номер: US20160230607A1
Автор: Yuuta Tanaka
Принадлежит: Sanden Holdings Corp

In an exhaust heat recovery device provided with a Rankine cycle device, a clutch for transmitting and interrupting power between an engine and the Rankine cycle device is released appropriately to prevent the Rankine cycle from becoming a load on the engine. An exhaust heat recovery device 1 A includes a Rankine cycle device 2 A, a power transmission mechanism 3 A, and a control unit 4 . The power transmission mechanism 3 A has a clutch 31 and is capable of transmitting power between an engine 10 and the Rankine cycle device 2 A when the clutch 31 is engaged. The control unit 4 A controls the engagement and disengagement of the clutch 31 based on a first correlation value correlated with consumed power when the Rankine cycle device 2 A is started, and a second correlation value correlated with consumed power of the Rankine cycle device 2 A when the output of the Rankine cycle device 2 A is negative during the operation of the Rankine cycle device 2 A after the start-up.

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Номер записи: 84
18-07-2019 дата публикации

Scroll Unloading Detection System

Номер: US20190219316A1
Автор: GROSHEK Jacob A.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

Systems and methods for compressor unloading detection are provided and include a compressor having a compression mechanism. A controller determines a predicted discharge temperature of the compressor, receives an actual discharge temperature of the compressor, and compares the predicted discharge temperature with the actual discharge temperature. The controller also compares a speed of the compressor with a speed threshold and detects unloading of the compression mechanism based on the comparison of the predicted discharge temperature with the actual discharge temperature and based on the comparison of the speed of the compressor with the speed threshold. The controller performs at least one of generating an alert and a remediating action in response to detecting the unloading of the compression mechanism. 1. A system comprising:a compressor having a compression mechanism; anda controller that determines a predicted discharge temperature of the compressor, that receives an actual discharge temperature of the compressor, that compares the predicted discharge temperature with the actual discharge temperature, that compares a speed of the compressor with a speed threshold, that detects unloading of the compression mechanism based on the comparison of the predicted discharge temperature with the actual discharge temperature and based on the comparison of the speed of the compressor with the speed threshold, and that performs at least one of generating an alert and a remediating action in response to detecting the unloading of the compression mechanism.2. The system of claim 1 , wherein the compression mechanism is a scroll compression mechanism.3. The system of claim 2 , wherein the controller: determines a difference between the actual discharge temperature and the predicted discharge temperature in response to the actual discharge temperature being greater than the predicted discharge temperature; compares the difference with a predetermined threshold; and determines ...

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Номер записи: 85
19-08-2021 дата публикации

SCROLL TYPE EXPANDER

Номер: US20210254466A1
Автор: Nakamura Shinji
Принадлежит:

A housing of a scroll type expansion machine includes: a suction port formed at a position on the opposite side to a drive shaft with a fixed scroll interposed therebetween; a discharge port formed on the side of a drive-side bearing closer to the tip end of the drive shaft; a low pressure chamber formed on the outer side of an orbiting-side scroll portion when viewed from the axial direction of the drive shaft; and a tip end-side low-pressure space being a space in which a sealing member is disposed, and has: a partition wall partitioning the tip end-side low-pressure space and the low-pressure chamber from each other; and a communication space communicating the tip end-side low-pressure space with the low-pressure chamber. 1. A scroll type expander used in a Rankine cycle in which a working fluid circulates , comprising:a housing;a drive shaft a base end of which is housed in the housing and a tip end of which projects out of the housing;a fixed scroll fixed to a side closer to the base end of the drive shaft rather than to the tip end of the drive shaft inside the housing;an orbiting scroll arranged on a side of the fixed scroll closer to the tip end of the drive shaft in a rotatable structure inside the housing;a bearing arranged on a side of the orbiting scroll closer to the tip end of the drive shaft inside the housing and configured to support the drive shaft in a rotatable structure with respect to the housing via a plurality of rolling elements; anda sealing member arranged on a side of the bearing closer to the tip end of the drive shaft inside the housing and configured to surround an outer peripheral surface of the drive shaft, whereinthe fixed scroll has a fixed-side scroll portion formed in a spiral shape when viewed from an axial direction of the drive shaft,the orbiting scroll has an orbiting-side scroll portion formed in a spiral shape when viewed from the axial direction of the drive shaft and meshing with the fixed-side scroll portion,the housing ...

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Номер записи: 86
17-08-2017 дата публикации

Scroll Fluid Machine

Номер: US20170234130A1
Автор: KANEMOTO Yoshiyuki, Kato Fuminori, YAMAZAKI Shumpei
Принадлежит:

The purpose of the present invention is to provide a scroll fluid machine, the reliability of which is ensured and which can be manufactured with high productivity. The present invention provides a scroll fluid machine comprising: a stationary scroll having a spiral wrap upstanding therefrom; an orbiting scroll provided facing the stationary scroll and orbiting; a casing provided outside the orbiting scroll; a drive shaft for causing the orbiting scroll to orbit; an orbiting bearing for transmitting the rotational movement of the drive shaft to the orbiting scroll; and a plurality of rotation prevention mechanisms for preventing the orbiting scroll from rotating. The scroll fluid machine is characterized in that: the rotation prevention mechanisms have crankshafts and also have crank bearings for supporting the crankshafts; and the gap between each of the crankshafts and the corresponding one of the crank bearings is set to be greater than the gap between the drive shaft and the orbiting bearing. 1. A scroll fluid machine comprising:a stationary scroll in which a spiral lap part is installed;an orbiting scroll that is provided opposite to the stationary scroll and orbits;a casing that is provided outside the orbiting scroll;a drive shaft that makes the orbiting scroll orbit;an orbiting bearing that transmits a rotational movement of the drive shaft to the orbiting scroll; anda plurality of rotation prevention mechanisms that prevent rotation of the orbiting scroll, wherein:the rotation prevention mechanism has a crankshaft and a crank bearing that supports the crankshaft; and a gap between the crankshaft and the crank bearing is made larger than a gap between the drive shaft and the orbiting bearing.2. The scroll fluid machine according to claim 1 , wherein a locating hole that locates the orbiting scroll with respect to the casing is provided in each of the casing and the orbiting scroll.3. The scroll fluid machine according to claim 2 , wherein the locating hole ...

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Номер записи: 87
01-09-2016 дата публикации

Positive displacement turbine

Номер: US20160251960A1
Автор: Braden Murphy, Nick MURRAY
Принадлежит: Braden Murphy, Nick MURRAY

A method of urging rotation of an output shaft comprises delivering fluid to a motor coupled to the output shaft. The motor has a housing and at least one first chamber in the housing. The method further comprises operating the motor in a positive displacement mode for at least a first period of time and in a turbine mode for at least a second period of time to transfer energy from the fluid to rotation of the output shaft about its longitudinal axis.

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Номер записи: 88
08-08-2019 дата публикации

CIRCULATING PISTON ENGINE HAVING A ROTARY VALVE ASSEMBLY

Номер: US20190242259A1
Автор: Bonin Walter T.
Принадлежит:

An engine includes a housing defining an annular bore and a piston assembly disposed within the annular bore. The engine also includes a rotary valve comprising a circular faceplate and a wall structure disposed at an outer periphery of the faceplate, a portion of the at least one rotary valve disposed within the annular bore, and a rotary drive mechanism connected to the rotary valve and configured to rotate the rotary valve between a first position to align an opening of the wall structure with the annular bore to allow the piston of the piston assembly to travel within the annular bore from a first location relative to the rotary valve to a second location relative to the rotary valve and a second position to define a chamber relative to the piston of the piston assembly at the second location. 1. An engine , comprising: an annular combustion channel disposed at an outer periphery of the housing, and', 'an annular compression channel disposed at an outer periphery of the housing and disposed at an axial location relative to the annular combustion chamber;, 'a housing defininga set of combustion pistons disposed within the combustion channel;a set of compression pistons disposed within the compression channel;at least one valve, a portion of the at least one valve disposed within the combustion channel and the compression channel; and between a first position to align the at least one valve in the combustion channel to allow a combustion piston of the set of combustion pistons to travel within the combustion channel from a first location to a second location relative to the at least one valve and a second position to define a combustion chamber relative to the combustion piston at the second location, and', 'between a first position to align the at least one valve in the compression channel to allow a compression piston of the set of compression pistons to travel within the compression channel from a first location to a second location relative to the at least one ...

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Номер записи: 89
30-09-2021 дата публикации

Rotary Fluid Flow Device

Номер: US20210301825A1
Автор: Farrell Erik, Juan Alejandro, Sereda-Mohr Michael
Принадлежит:

A positive displacement device that converts energy, namely positive displacement compressors that rotate in a single rotational direction to displace working fluid contained in operating chambers. The device described herein is particularity advantageous for the ability to achieve high compression ratios in combination with high discharge pressure and high volumetric throughput in a single stage. 120. A rotary fluid flow device () comprising:{'b': '55', 'a housing ();'}{'b': 76', '64', '55', '134', '114, 'a first rotor () having a rotor shaft () within the housing (), an outer surface with a hydrostatic bearing () engaging an inner surface () of the housing;'}{'b': 38', '64, 'a collar () fitted to the rotor shaft ();'}{'b': 38', '76, 'the collar () having a forward surface axially facing the first rotor ();'}{'b': 38', '76, 'the collar () having a rearward surface axially facing away from the first rotor ();'}{'b': 118', '38, 'a forward self-compensating hydrostatic bearing () engaging the forward surface of the collar (); and'}{'b': 118', '134', '114', '55, 'wherein the forward self-compensating hydrostatic bearing () offsets force exerted by the hydrostatic bearing () between the first rotor outer surface and the inner surface () of housing ().'}220. The rotary fluid flow device () as recited in further comprising:{'b': 120', '38, 'a rearward self-compensating hydrostatic bearing () engaging the rearward surface of the collar ();'}{'b': 120', '144', '55, 'wherein the rearward self-compensating hydrostatic bearing () is configured to offset force exerted by the pressure-induced force of the working fluid in a compression chamber () defined in part by the housing ().'}320. The rotary fluid flow device () as recited in further comprising:{'b': 76', '28, 'a gearing arrangement mechanically connecting the first rotor () to a second rotor (); and'}{'b': 38', '76', '28, 'wherein the collar () cooperates with the gearing arrangement to index the first rotor () to the ...

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Номер записи: 90
27-11-2014 дата публикации

HEAT ENGINE, METHOD OF CONTROL OF THE ROTATIONAL SPEED IN A HEAT ENGINE, AND METHOD OF DESIGN OF A CAM PROFILE FOR A HEAT ENGINE

Номер: US20140348678A1
Автор: Castillo Álvarez Juan Antonio
Принадлежит:

Heat engine comprising a body () provided with an annular cavity () therein, two coaxial discoidal sectors (′) that comprises two diametrically opposite tangential pistons (and or and ) that project, both radially and axially, from their corresponding discoidal sector and can slide through the annular cavity, each pair of consecutive pistons defining a chamber (Cab, Cbc, Ccd, Cda), a means of control of the rotational speed of the two discoidal sectors that makes their respective rotational speeds to vary cyclically and in antiphase between a maximum speed and a minimum speed, so that the speed of each sector is kept at a substantial maximum for most of the duration of a half-cycle, and is kept at a substantial minimum for most of the duration of the other half-cycle, and a means () of integration of the speeds of the sectors into a mean speed for the power transmission shaft (). 2. A heat engine according to claim 1 , wherein each discoidal sector comprises at least two diametrically opposite tangential pistons that project claim 1 , both radially and axially claim 1 , from their corresponding discoidal sector and can slide through the annular cavity in the body claim 1 , each pair of consecutive pistons claim 1 , one from one sector and the other from the other sector claim 1 , defining one of the mentioned chambers in said annular cavity claim 1 , said tangential pistons being substantially hollow.3. A heat engine according to claim 2 , wherein the tangential pistons comprise some radial retainers which are substantially flat plates configured to be elastically curved during their assembly.4. A heat engine according to claim 1 , wherein the speed control mechanism comprises two such deformable parallelograms provided with four links and two cam profiles claim 1 , the deformable parallelograms being axially spaced and each link being provided with its corresponding roller claim 1 , and the cam profiles extending in parallel to the discoidal sectors in such a way ...

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Номер записи: 91
15-09-2016 дата публикации

GEAR PUMP OR HYDRAULIC GEAR MOTOR WITH HELICAL TOOTHING PROVIDED WITH HYDRAULIC SYSTEM FOR AXIAL THRUST BALANCE

Номер: US20160265528A1
Автор: FERRETTI Stefano, PERSICI Danilo
Принадлежит:

A gear pump has a toothed driving wheel, a toothed driven wheel, a front flange from which a projecting portion of the shaft protrudes, being connected to the shaft of the driving wheel, a back lid fixed to the case, and an intermediate flange between the case and the front flange. The intermediate flange has first and second chambers connected by a connection duct to the inlet or outlet fluid duct of the pump. A compensating ring is mounted in the first chamber and inserted on the shaft of the driving wheel to compensate the axial forces of the driving wheel and transmit the motion on the shaft of the driving wheel. A piston is mounted in the second chamber in order to stop against one end of the shaft of the driven wheel, in such manner to compensate the axial forces imposed on the toothed driven wheel. 1. A gear pump or hydraulic gear motor comprising:a first toothed wheel joined to a shaft;a second toothed wheel joined to another shaft and engaging with the first toothed wheel;supports revolvingly supporting the shafts of the toothed wheels;a case containing the supports and defining an inlet fluid duct and an outlet fluid duct;a front flange from which a projecting portion of shaft protrudes frontally, being connected to the shaft of the first toothed wheel, said projecting portion of shaft being adapted to be connected to a motor or a load; anda back lid fixed to the case;wherein an intermediate flange disposed between said case and said front flange, said intermediate flange comprising a first chamber connected by means of a connection duct to the inlet or outlet fluid duct;', 'a compensating ring M mounted in said first chamber of the intermediate flange and inserted on a portion of said shaft of the first toothed wheel, in such manner to compensate the axial forces imposed on the first toothed wheel and allow for motion transmission on the shaft of the first toothed wheel,', 'wherein said compensating ring comprises an internally empty cylinder and a collar ...

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Номер записи: 92
14-09-2017 дата публикации

FLUID PRESSURE PULSE GENERATOR FOR A DOWNHOLE TELEMETRY TOOL

Номер: US20170260853A1
Автор: Lee Gavin Gaw-Wae, LOGAN Aaron W., LOGAN Justin C., Stack Luke
Принадлежит:

A fluid pressure pulse generator for a downhole telemetry tool comprising a stator and a rotor. The stator comprises a stator flow diverter radially extending across a flow path for fluid flowing through the fluid pressure pulse generator and having one or more than one stator flow channel therethrough through which the fluid flows. The rotor comprises a rotor flow diverter radially extending across the flow path for fluid flowing through the fluid pressure pulse generator and having one or more than one rotor flow channel therethrough through which the fluid flows. The rotor flow diverter is axially adjacent the stator flow diverter and the rotor flow diverter is rotatable relative to the stator flow diverter to move the one or more than one rotor flow channel in and out of fluid communication with the one or more than one stator flow channel to create fluid pressure pulses in the fluid flowing through the fluid pressure pulse generator. A rotor/driveshaft coupling releasably couples the driveshaft of a probe of the tool and the rotor such that the probe can be decoupled from the rotor and removed from a sub housing the fluid pressure pulse generator. 2. The fluid pressure pulse generator of claim 1 , wherein the rotor comprises the rotor female receiver having an internal profile which corresponds to an external profile of the driveshaft male shaft.3. The fluid pressure pulse generator of claim 1 , wherein the rotor further comprises a rotor body and the rotor flow diverter comprises a plurality of radially extending rotor projections spaced around the rotor body claim 1 , whereby adjacently spaced rotor projections define the rotor flow channels therebetween.4. The fluid pressure pulse generator of claim 1 , wherein the rotor flow diverter comprises a rotor disc with the one or more than one rotor flow channel extending therethrough.5. The fluid pressure pulse generator of claim 1 , wherein the rotor flow diverter further comprises one or more than one turbine ...

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Номер записи: 93
04-12-2014 дата публикации

EXPANDER

Номер: US20140356208A1
Автор: TSUBOI Noboru
Принадлежит: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

In order to suppress the damage and the degradation in durability of a bearing of an expander, simplify the configuration of the expander, and reduce the manufacturing cost thereof, an expander of the present invention includes an expander rotor that is rotationally driven by an expanding force transmitted from vapor of a working medium introduced into an expansion chamber and a first bearing that supports a first rotation shaft of the expander rotor to a vapor inlet, a casing includes therein first bearing chambers that have a pressure lower than that of the vapor inlet and accommodate the first bearing, and a passage that leads lubricant to a low-pressure portion having a pressure lower than that of the first bearing chamber is connected to a position above the lowermost portion of the first bearing in the first bearing chamber. 1. An expander , comprising:a casing that includes therein an expansion chamber into which lubricant and vapor of a working medium are introduced;an expander rotor that is rotationally driven by an expanding force transmitted from the vapor of the working medium introduced into the expansion chamber;a first bearing that supports a rotation shaft of the expander rotor to a working medium feeding port of the expansion chamber so that the expander rotor is rotatable;a second bearing that supports the rotation shaft of the expander rotor to a working medium lead-out port of the expansion chamber so that the expander rotor is rotatable;a first bearing chamber that is provided inside the casing and accommodates the first bearing, the pressure inside the first bearing chamber being lower than that of the feeding port of the expansion chamber; anda lubricant passage that connects a position above a lowermost portion of the first bearing in the first bearing chamber to a low-pressure portion having a pressure lower than that of the first bearing chamber.2. The expander according to claim 1 , whereina shaft seal that seals the outer periphery of the ...

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Номер записи: 94
21-09-2017 дата публикации

Scroll Fluid Machine

Номер: US20170268340A1
Автор: MATSUMOTO Yasuomi, OOTANI Hisashi, Tobe Takahisa
Принадлежит:

Scroll fluid machine () in which the dislodgement of a slide bush () and a spring (), which are provided in an eccentric bush (), is prevented. Provided in receiving hole () of eccentric bush () are slide bush (), which is movable in the direction of eccentricity, and spring (), which biases slide bush () in a moving direction. A spring holding section () and engagement projections () are formed on slide bush (). After slide bush () is placed in the receiving hole (), engagement projections () engage with eccentric bush () in a state in which slide bush () has been moved by the biasing force of spring (), thus preventing slide bush () from falling off the receiving hole (), and the spring holding section () prevents the spring () from falling off the receiving hole ().

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Номер записи: 95
11-12-2014 дата публикации

IDAR-ACE INVERSE DISPLACEMENT ASYMMETRIC ROTATING ALTERNATIVE CORE ENGINE

Номер: US20140360457A1
Автор: Anderson William, Lukaczyk Trent, Lukaczyk William
Принадлежит:

The disclosure provides engines or pumps that includes a rotatable shaft defining a central axis A, the shaft having a first end and a second end. The shaft can have an elongate first island disposed thereon. The first island can have a body with a volume generally defined between front and rear surfaces that are spaced apart. The front and rear surfaces can lie in a plane parallel to a radial axis R. The perimeters of the front and rear surfaces can define a curved perimeter surface therebetween. The engine or pump can further include a front side plate disposed adjacent to the front surface of the first island, and a rear side plate disposed adjacent to the rear surface of the first island. The engine or pump also includes a first contour assembly disposed between the front side plate and the rear side plate. 1. An engine or pump , comprising:a) a rotatable shaft defining a central axis A, the shaft having a first end and a second end, the shaft having an elongate first island disposed thereon, the first island having a body with a volume generally defined between front and rear surfaces that are spaced apart along the rotatable shaft, the front and rear surfaces lying in a plane parallel to a radial axis R, the front and rear surfaces having a rounded, non-circular shape, the perimeters of the front and rear surfaces defining a curved perimeter surface therebetween;b) a front side plate disposed adjacent to the front surface of the first island;c) a rear side plate disposed adjacent to the rear surface of the first island; andd) a first contour assembly disposed between the front side plate and the rear side plate, the first contour assembly being defined by a pair of opposed outwardly facing arcuately shaped front and rear surfaces that are connected by a concave inwardly facing surface, the concave inwardly facing surface of the contour assembly facing the curved perimeter surface of the first island, the concave inwardly facing surface and the curved perimeter ...

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Номер записи: 96
21-09-2017 дата публикации

Scroll device having a pressure plate

Номер: US20170268514A1
Автор: Shaffer Bryce R.
Принадлежит:

A scroll device has a housing having a fixed scroll plate and an orbiting scroll plate mounted therein on an idler shaft, the fixed scroll plate having a side having a fixed interleaved involute scroll and an outward facing side, the orbiting scroll plate having a side that has an orbiting interleaved involute scroll, an inlet port for the introduction of a working fluid into the device, and a pressure plate positioned adjacent to the outward facing side of the fixed scroll plate.

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Номер записи: 97
04-11-2021 дата публикации

Rotary Roller Motor

Номер: US20210340902A1
Автор: Michael Francis O'connor
Принадлежит: Individual

The Rotary Roller Motor (RRM) is a four cycle rotary internal combustion engine that uniquely overcomes many of the drawbacks of other rotary type engines, by having the Rotor ‘roll’ around the inside of the engine block, rather than scraping it. This is accomplished with a two part rotor. The inner part of the rotor is composed of a Rotor Shaft (RS-12) with an Offset Circular Lobe (OCL-11) rigidly attached to it. The Outer Rotor (OR-9) fits symmetrically around the Offset Circular Lobe, with Inter Rotor Bearings (IRB-10) between the two to allow free movement. The four cycles are separated by two barriers; the Compression/Power Barrier (CPB-13), and the Exhaust/Intake Barrier (EIB-6). Compression is controlled by two non-reversing barriers, the Non-reversing Compression Barrier (NCB-3) and the Compression Hold Barrier (CHB-14), on either side of the Combustion Chamber (CC-2).

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Номер записи: 98
12-09-2019 дата публикации

MAGNETICALLY ENGAGED PUMP

Номер: US20190277283A1
Автор: BLANKEMEIER WILLIAM, LEOPOLD CHRISTOPLHER, LIBBY LOREN MICHAEL, Ortega Nicholas William, SANDORE BRIAN JAMES, SCHWARTZ ROBERT GEORGE, SHAFER CLARK
Принадлежит: WILDEN PUMP AND ENGINEERING LLC

A magnetically engaged pump includes a pump housing with a rotatable magnetic drive assembly, a cylindrical canister and a rotatable driven magnet assembly. This magnetic coupling is associated with a pump rotor and a laterally positioned gear wheel to define a gear pump. This magnetic coupling is alternatively associated with a pump rotor with an impeller to define a centrifugal pump. Either pump includes a stationary shaft to mount the driven magnet assembly and pump rotor. A rotatable carrier with bushings and thrust bushings coaxially supports the rotatable driven magnet assembly and pump rotor. 1. A magnetically engaged pump comprisinga pump housing including a shaft in the housing;a magnetic coupling in the pump housing including a rotatable magnetic drive, a rotatable driven magnet assembly inwardly of the rotatable magnetic drive and a cylindrical canister extending between the rotatable magnetic drive and the rotatable driven magnet assembly, the rotatable driven magnet assembly having a concentric cavity;a pump rotor engaged with the rotatable driven magnet assembly and including an axial passage;a carrier including a bore rotatably disposed about the shaft and at least one plain bushing in the bore bearing on the shaft and being separable from the carrier, the carrier being within the concentric cavity and fitting through the axial passage for removal from the pump with the pump rotor engaged with the rotatable driven magnet assembly and the rotatable driven magnet assembly magnetically engaged with the rotatable magnetic drive.2. The magnetically engaged pump of further comprisingan inner impeller wheel rotatable with the rotatable driven magnet assembly and axially removable through the pump rotor, the pump rotor including an annular impeller wheel having continuity of flow with the inner impeller wheel.3. A magnetically engaged pump comprisinga pump housing including a shaft in the housing;a magnetic coupling in the pump housing including a rotatable ...

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Номер записи: 99
10-09-2020 дата публикации

Internal combustion engine

Номер: US20200284188A1
Автор: Aleksei Mihailovich OREL
Принадлежит: Individual

A rotary internal combustion engine that has a housing, main rotors with an external cylindrical surface with rigidly fixed gear wheels and blades in the form of gear ledges (protrusions), as well as additional rotors with an external cylindrical surface with rigidly fixed gear wheels and recesses corresponding to the size of the blades on the main rotors. Additionally, the engine includes a unit for preparing and igniting the working mixture and a unit for discharging exhaust gases. Moreover, the circumference values of the main and additional rotors do not match, and are multiples of the length L1 between the nearest points of tangency (physical contact) of the center of the surface of the gear ledge with the housing.

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Номер записи: 100