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Небесная энциклопедия

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

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Мониторинг СМИ

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

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Применить Всего найдено 834. Отображено 100.
10-01-2013 дата публикации

Scroll compressor

Номер: US20130011288A1
Автор: Ian David Stones
Принадлежит: Edwards Ltd

A scroll compressor ( 10 ) comprising a scroll pumping mechanism having two co-operating scrolls ( 14,16 ) mounted within a pump housing ( 18 ) so that on relative orbital movement of the scrolls fluid is pumped from a pump inlet ( 20 ) in the pump housing to a pump outlet ( 22 ) in the pump housing. The scroll compressor ( 10 ) further comprises a filter ( 24 ) located within the pump housing ( 18 ) along a fluid flow path ( 26 ) between the pump inlet ( 20 ) and the scroll pumping mechanism ( 12 ) for resisting the passage of particulates ( 28 ) upstream of the compressor.

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Номер записи: 1
23-05-2013 дата публикации

ROTARY COMPRESSOR AND MANUFACTURING METHOD THEREOF

Номер: US20130129539A1
Автор: Lee Jeong Bae
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A rotary compressor having a reduced vibration and noise thereof, and capable of minimizing the deformation of components to improve the performance and the reliability, thereby providing applications for various fields other than for an air conditioner 1. A rotary compressor , comprising:a case forming an external appearance of the rotary compressor;a driving portion provided at an inner side of the case, and having a stator fixed to the case, a rotator rotatively provided at an inside the stator, and a rotary shaft that is press-fitted to the rotator;a compression portion provided at an inner side of the case, and having an eccentric portion provided at a lower portion of the rotary shaft, a roller rotatively inserted into an outer side of the eccentric portion, a cylinder accommodating the roller and provided for a compression chamber to be formed therein, and a vane configured to divide the compression chamber;a fastening member configured to connect the driving portion to the compression portion; anda supporting member configured to connect the compression portion to the case to support the compression portion.2. The rotary compressor of claim 1 , wherein the supporting member comprises a first elastic member to support the compression portion claim 1 , and a second elastic member to connect the fastening member to the case.3. The rotary compressor of claim 1 , wherein the supporting member is a damper configured to couple the fastening member to the case and to absorb vibration.4. The rotary compressor of claim 1 , further comprising:an upper portion bearing coupled to an upper portion of the cylinder and configured to support the rotary shaft, and a lower portion bearing coupled to a lower portion of the cylinder and configured to support the rotary shaft, andone of both sides of the fastening member is coupled to the stator of the driving portion.5. The rotary compressor of claim 4 , wherein the other side of the fastening member is coupled to the upper ...

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Номер записи: 2
04-07-2013 дата публикации

ROTARY COMPRESSOR WITH DUAL ECCENTRIC PORTION

Номер: US20130171017A1
Автор: Lee Byeongchul, LEE Yunhi, PARK Joonhong
Принадлежит:

A rotary compressor including two eccentric portions is provided. The rotary compressor includes: a casing; a cylinder provided within the casing and providing a compression space; a rotational shaft rotatably disposed with respect to the cylinder; a partition plate rotating together with the rotational shaft and dividing the compression space of the cylinder into first and second compression chambers disposed up and down; first and second eccentric portions provided in upper and lower portions of the partition plate and being eccentric in different directions with respect to a rotation center of the rotational shaft so as to rotate together with the rotational shaft; and a driving motor rotatably driving the rotational shaft. 1. A rotary compressor comprising:a casing;a cylinder disposed within the casing and providing a compression space;a rotational shaft rotatably disposed with respect to the cylinder;a partition plate rotating together with the rotational shaft and dividing the compression space of the cylinder into first and second compression chambers disposed up and down;first and second eccentric portions provided in upper and lower portions of the partition plate and being eccentric in different directions with respect to a rotation center of the rotational shaft so as to rotate together with the rotational shaft; anda driving motor rotatably driving the rotational shaft.2. The rotary compressor of claim 1 , wherein the first and second eccentric portions are eccentric in the opposite directions with respect to the center of the rotation shaft.3. The rotary compressor of claim 1 , further comprising:two vanes disposed in the first and second compression chambers to divide the same.4. The rotary compressor of claim 3 , wherein the vanes are disposed such that end portions of outer circumferential portions thereof are in contact with outer circumferential portions of the first and second eccentric portions.5. The rotary compressor of claim 3 , further ...

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Номер записи: 3
31-10-2013 дата публикации

METHOD AND APPARATUS FOR SCROLL ALIGNMENT

Номер: US20130287617A1
Автор: Siefring Christopher Nicholas
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor may include a shell, a bearing housing supported within the shell, an orbiting scroll, a non-orbiting scroll meshingly engaged with the orbiting scroll, fasteners and a drive shaft. The bearing housing may include a central body defining a bore and arms extending radially outward from a central body and defining circumferentially extending grooves. The circumferentially extending grooves may include inner side walls, outer side walls and base regions extending regionally between the inner and outer side walls and defining fastener receiving apertures. The orbiting scroll may be supported on the bearing housing and a non-orbiting scroll may be meshingly engaged with the orbiting scroll and may include flanges defining flange apertures. The fasteners may extend through the flange apertures and the fasteners receiving apertures and secure the non-orbiting scroll to the bearing housing. The drive shaft may extend through the bore and be engaged with the orbiting scroll. 1. A compressor comprising:a shell; a central body defining a bore; and', 'arms extending radially outward from said central body and defining circumferentially extending grooves including inner side walls, outer side walls and base regions extending radially between said inner and outer side walls and defining fastener-receiving apertures;, 'a bearing housing supported within said shell and includingan orbiting scroll supported on said bearing housing;a non-orbiting scroll meshingly engaged with said orbiting scroll and including a flange defining flange apertures;fasteners extending through said flange apertures and said fastener-receiving apertures and securing said non-orbiting scroll to said bearing housing; anda drive shaft extending through said bore and engaged with said orbiting scroll.2. The compressor of claim 1 , wherein said grooves are each arc-shaped with open circumferential ends.3. The compressor of claim 1 , wherein said circumferentially extending grooves are concentric to ...

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Номер записи: 4
07-11-2013 дата публикации

ELECTRIC COMPRESSOR AND ASSEMBLY METHOD THEREFOR

Номер: US20130294951A1
Автор: Hagita Takayuki, Hirano Takeshi, Ichise Yuki, Ishikawa Masayuki, Watanabe Takayuki
Принадлежит: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.

An electric compressor includes a compression unit that compresses a refrigerant; an electric motor that is coupled with the compression unit via a main shaft; a housing that accommodates the compression unit and the electric motor; an end-side bearing holding part that is provided near an axial end of the housing closer to the electric motor; and a rolling bearing that has an outer ring press-fitted into the end-side bearing holding part and an inner ring into which an end of the rotating shaft is press-fitted, and that supports the main shaft, in which an opening into which an assembly jig for supporting the rolling bearing when the main shaft is press-fitted into the inner ring can be inserted and removed is provided in an end surface of the housing near the end-side bearing holding part. 1. An electric compressor comprising:a compression unit that compresses a refrigerant;an electric motor that is coupled with the compression unit via a rotating shaft;a housing that accommodates the compression unit and the electric motor;an end-side bearing holding part that is provided near an axial end of the housing closer to the electric motor; anda rolling bearing that has an outer ring that is press-fitted into the end-side bearing holding part and an inner ring into which an end of the rotating shaft is press-fitted, and that supports the rotating shaft,wherein an opening into which an assembly jig for supporting the rolling bearing when the rotating shaft is press-fitted into the inner ring can be inserted and removed is provided in an end surface of the housing near the end-side bearing holding part.2. An electric compressor according to claim 1 , wherein a bolt is screwed into the opening so as to block the opening.3. An electric compressor according to claim 1 , wherein a blocking plate is provided so as to block the opening claim 1 , with a sealing member interposed therebetween.4. An electric compressor comprising:a compression unit that compresses a refrigerant;an ...

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Номер записи: 5
14-11-2013 дата публикации

SCROLL REFRIGERATION COMPRESSOR

Номер: US20130302198A1
Автор: Bron Mickael, Ginies Pierre, Gross Dominique, Meynand Franck, Watts Stephane
Принадлежит: DANFOSS COMMERCIAL COMPRESSORS

The scroll refrigeration compressor includes a stationary volute and a moving volute provided with spiral wraps defining variable-volume compression chambers, a separating member sealably mounted on a plate of the stationary volute so as to allow a relative movement between the separating member and the stationary volute, a delivery chamber at least partially defined by the separating member and the sealed casing. The compressor further includes a bypass passage arranged to communicate the delivery chamber with an intermediate compression chamber, and a anti-return device comprising a closing member movable between closing and opening positions for closing and opening the bypass passage, and an enclosure, positioned between the separating member and the plate of the stationary volute, including a first portion sealably mounted in a housing defined by the separating member and oriented substantially parallel to the longitudinal axis of the compressor. 1. A scroll refrigeration compressor comprising:a sealed casing containing a stationary volute and a moving volute following an orbital movement, each volute including a plate from which a spiral wrap extends, the spiral wraps of the stationary and moving volutes being engaged in one another and defining variable-volume compression chambers,a separating member sealably mounted on the plate of the stationary volute so as to allow a relative movement between the separating member and the stationary volute in a direction substantially parallel to the longitudinal axis (A) of the compressor, the separating member and the plate of the stationary volute delimiting an intermediate volume,a delivery chamber at least partially defined by the separating member and the sealed casing,wherein the compressor further comprises:at least one bypass passage arranged to communicate the delivery chamber with an intermediate compression chamber,at least one anti-return device of a first type associated with a bypass passage, each anti- ...

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Номер записи: 6
16-01-2014 дата публикации

SCROLL COMPRESSOR

Номер: US20140017108A1
Автор: Katou Katsumi, Nishide Youhei, UEKAWA Takashi
Принадлежит:

A scroll compressor () includes a bearing oil supply passage () configured to supply a refrigeration oil from an oil reservoir () located in a casing () to a bearing of a driving shaft (). An oil groove () which communicates only with the oil reservoir () in the casing () through a connection passage () and a capillary tube () is formed on a thrust sliding surface () of a fixed scroll (). Since the bearing oil supply passage () is not in communication with the oil groove (), even when an orbiting scroll () is tilted and a pressure of the oil groove () decreases, a pressure of the bearing oil supply passage () does not decrease, and accordingly, the refrigeration oil is supplied from the bearing oil supply passage () to the bearing of the driving shaft (). 1. A scroll compressor comprising:a casing;a compression mechanism housed in the casing, the compression mechanism including a fixed scroll and an orbiting scroll;a driving shaft housed in the casing, the drive shaft being engaged with the orbiting scroll;a bearing oil supply passage configured to supply the lubricating oil from an oil reservoir located in the casing to a bearing location in the compression mechanism, the bearing location being disposed with the driving shaft; anda groove communication passage,the compression mechanism being configured to discharge a compressed fluid into the casing and to generate a pressing force pressing the orbiting scroll against the fixed scroll,the orbiting scroll having an end plate with a thrust sliding surface and the fixed scroll having a thrust sliding surface, the thrust sliding surfaces of the fixed scroll and the orbiting scroll being in sliding contact with each other,one of the thrust sliding surfaces of the orbiting scroll and the fixed scroll includes an oil groove arranged such that a lubricating oil flows into the oil groove,the bearing oil supply passage not being in communication with he oil groove, andthe groove communication passage connecting the oil ...

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Номер записи: 7
06-02-2014 дата публикации

Motor-driven compressor

Номер: US20140037470A1
Автор: Junya Yano, Kazuhiro Kuroki, Ken Suitou, Satoru Egawa, Shingo Enami, Yusuke Kinoshita
Принадлежит: Toyota Industries Corp

A motor-driven compressor includes a compression unit, an electric motor, a housing, a cover, wherein the cover includes a main body and a connector coupler, and the cover and the housing define an accommodating chamber, a motor driving circuit that is accommodated in the accommodating chamber and includes a circuit board, and a metal terminal held in the connector coupler, wherein the metal terminal includes first and second end portions. The cover has a shield including a first shield portion, which blocks electromagnetic noise and forms at least part of the connector coupler, and a second shield portion, which blocks electromagnetic noise and forms at least part of the main body. The first and second shield portions are coupled to each other. The second shield portion includes an insertion hole into which one of the first and second end portions of the metal terminal is insertable.

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Номер записи: 8
13-02-2014 дата публикации

Scroll compression device

Номер: US20140044572A1
Автор: Akihiro Hayashi, Katsuki Akuzawa, Kazuyoshi Sugimoto, Kenji Aida, Satoshi Iitsuka, Tsutomu Kon, Yasunori Kiyokawa, Yoshiaki Nagasawa, Yoshihiko Nagase
Принадлежит: Sanyo Electric Co Ltd

A scroll compression mechanism 11 for compressing refrigerant and a driving motor 13 that drives the scroll compression mechanism 11 are accommodated in a casing 3, the scroll compression mechanism 11 is supported in the casing 3 by a main frame 21, the driving shaft 15 is connected to a rotor 39 of the driving motor 13 and supported in the casing 3 by a bearing plate 8, a pickup 45 is connected to an oil supply path 41 extending in an up-and-down direction in the driving shaft 15, and intercommunication paths 38 B, 54 A through which lubrication oil scraped up by the pickup 45 and supplied to respective lubrication sites is returned to the lower side of the driving motor 13 are provided between the stator 37 and the spacer ring 38 or between the spacer ring 38 and the casing 3.

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Номер записи: 9
13-02-2014 дата публикации

SCROLL COMPRESSION DEVICE

Номер: US20140044574A1
Автор: Iitsuka Satoshi, Kon Tsutomu, Nagase Yoshihiko, Sugimoto Kazuyoshi
Принадлежит: SANYO ELECTRIC CO., LTD.

A scroll compression device that is adaptable to a larger elimination capacity by using a balancer of magnetic material is provided. A scroll compression mechanism for compressing refrigerant and a driving motor that is connected to the scroll compression mechanism through a driving shaft and drives the scroll compression mechanism are accommodated in a casing the scroll compression mechanism is supported in the casing by a main frame a rotor of the driving motor is connected to the driving shaft the driving shaft is supported in the casing by a bearing plate an upper balancer of magnetic material is secured onto the shaft above the stator of the driving shaft a lower balancer of non-magnetic material is secured to the lower end of the rotor and an auxiliary balancer of non-magnetic material is secured in the gap between the upper end of the rotor and the upper balancer 1. A scroll compression device , characterized in that a scroll compression mechanism for compressing refrigerant and a driving motor that is connected to the scroll compression mechanism through a driving shaft and drives the scroll compression mechanism are accommodated in a casing , the scroll compression mechanism is supported in the casing by a main frame , a stator of the driving motor is directly or indirectly supported in the casing , the driving shaft is connected to a rotor of the driving motor and the driving shaft is supported in the casing by a bearing plate , an upper balancer formed of magnetic material is secured onto the shaft above the stator of the driving shaft , a lower balancer formed of non-magnetic material is secured to a lower end of the rotor , and an auxiliary balancer formed of non-magnetic material is secured in a gap between an upper end of the rotor and the upper balancer.2. The scroll compression device according to claim 1 , wherein the lower balancer and the auxiliary balancer are swaged to the rotor by using a rivet.3. The scroll compression device according to ...

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Номер записи: 10
27-02-2014 дата публикации

Suction Header Arrangement for Oil Management in Multiple-Compressor Systems

Номер: US20140056725A1
Автор: Bruce A. Fraser, Ronald J. Duppert, Wayne P. Beagle
Принадлежит: Bitzer Kuehlmaschinenbau GmbH and Co KG

A refrigeration system with two or more compressors configured to compress a flow of refrigerant with oil entrained therein. A suction flow piping arrangement is configured to supply a flow of refrigerant and oil to the two or more compressors. The suction flow piping arrangement has a suction header configured to carry the flow of refrigerant and oil, and a primary compressor supply conduit connected to the suction header. The primary compressor supply conduit supplies refrigerant and oil to a first compressor of the two or more compressors. A secondary compressor supply conduit branches off from the suction header. The secondary compressor supply conduit supplies refrigerant to a second compressor of the two or more compressors. The primary compressor supply conduit is configured to supply more oil to the first compressor than the secondary compressor supply conduit supplies to the second compressor.

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Номер записи: 11
06-03-2014 дата публикации

SCROLL COMPRESSION DEVICE AND METHOD FOR MAGNETIZING SCROLL COMPRESSION DEVICE

Номер: US20140064995A1
Автор: Aida Kenji, Akuzawa Katsuki, Hayashi Akihiro, Iitsuka Satoshi, Kiyokawa Yasunori, Kon Tsutomu, Nagasawa Yoshiaki, Nagase Yoshihiko, Sugimoto Kazuyoshi
Принадлежит: SANYO ELECTRIC CO., LTD.

A scroll compression device that enhances the efficiency of workability of magnetization of windings is provided. A scroll compression mechanism for compressing refrigerant and a driving shaft that is connected to the scroll compression mechanism through a driving shaft and drives the scroll compression mechanism are accommodated in a casing , the scroll compression mechanism is supported in the casing by a main frame , a rotor of the driving motor is connected to the driving shaft , the driving shaft is supported in the casing by a bearing plate , a pickup is connected to an oil supply path extending in an up-and-down direction in the driving shaft , and a holder extending in a radial direction is provided in the oil supply path at the back side of the pickup 1. A scroll compression device , characterized in that a scroll compression mechanism for compressing refrigerant and a driving shaft that is connected to the scroll compression mechanism through a driving shaft and drives the scroll compression mechanism are accommodated in a casing:the scroll compression mechanism is supported in the casing by a main frame;a rotor of the driving motor is connected to the driving shaft,the driving shaft is supported in the casing by a bearing plate;a pickup is connected to an oil supply path extending in an up-and-down direction in the driving shaft; anda holder extending in a radial direction is provided in the oil supply path at the back side of the pickup.2. The scroll compression device according to claim 1 , wherein the holder is a pin member penetrating through the oil supply path.3. The scroll compression device according to claim 1 , wherein a lower balancer is provided to a lower portion of the rotor of the driving motor claim 1 , a regulation plate for regulating rotation of the rotor is provided to the lower surface of the lower balancer claim 1 , and a plurality of lock groove portions are provided on the outer periphery of the regulation plate.4. The scroll ...

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Номер записи: 12
06-03-2014 дата публикации

HERMETIC ELECTRICAL FEEDTHROUGH ASSEMBLY FOR A COMPRESSOR

Номер: US20140065000A1
Автор: BLANKENSHIP Doug, GILLIAM David R., HIX Scott G., JR. John R., NEWLAND Joseph A., TOLBERT
Принадлежит:

An electrical feedthrough assembly for providing connection to components of a compressor includes a housing having an inner surface defining a channel. A sealed wire assembly is provided in the channel. The sealed wire assembly includes a body having an outer surface and a plurality of wires sealingly passing through the body. 1. An assembly for a compressor , the assembly comprising:a housing being connectable to a shell of the compressor, the housing comprising a passageway; and a body positioned in the passageway and connected to the housing to form a hermetic seal between the housing and the body; and', 'a plurality of wires embedded in the body, each wire of the plurality of wires being individually hermetically sealed by the body and having a first end connectable to an internal component of the compressor and a second end opposite the first end connectable to a component external to the compressor., 'a wire assembly, the wire assembly comprising2. The assembly of wherein the connection between the body and the housing is a threaded connection.3. The assembly of wherein the threaded connection between the body and the housing includes an adhesive to form the hermetic seal.4. The assembly of wherein the connection between the body and the housing is an adhesive connection.5. The assembly of wherein the adhesive connection comprises at least one of a glue claim 4 , an epoxy claim 4 , a cyanoacrylate or a putty contacting both the body and the housing. This application is a continuation-in-part of U.S. application Ser. No. 12/843,429, filed Jul. 26, 2010, entitled HERMETIC ELECTRICAL FEEDTHROUGH ASSEMBLY FOR A COMPRESSOR AND METHOD FOR MAKING THE SAME and this application claims the benefit of U.S. Provisional Application No. 61/726,672, filed Nov. 15, 2012, entitled HERMETIC ELECTRICAL FEEDTHROUGH ASSEMBLY FOR A COMPRESSOR, and U.S. Provisional Application No. 61/726,676, filed Nov. 15, 2012, entitled SYSTEMS AND COMPRESSORS USING FLAMMABLE REFRIGERANT, all of ...

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Номер записи: 13
13-03-2014 дата публикации

COMPRESSOR AND OIL-COOLING SYSTEM

Номер: US20140072467A1
Автор: Guo Weihua, JIN Zhang, WANG Guibin, WANG Shi, ZHAN Honghong
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor may include a shell, a compression mechanism, a crankshaft, a bearing support, and a lubricant sump. The compression mechanism may be disposed in the shell and may compress a working fluid. The crankshaft may be disposed at least partially in the shell and may drivingly engage the compression mechanism. The bearing support may rotatably support the crankshaft. The lubricant sump may retain a volume of lubricant and may be disposed between the bearing support and the compression mechanism. 1. A compressor comprising:a shell;a compression mechanism disposed in said shell and compressing a working fluid;a crankshaft disposed at least partially in said shell and drivingly engaged with said compression mechanism;a bearing support rotatably supporting said crankshaft; anda lubricant sump for retaining a volume of lubricant and disposed between said bearing support and said compression mechanism.2. The compressor of claim 1 , further comprising a thrust plate disposed between said bearing support and said compression mechanism claim 1 , said thrust plate having an engaging surface that is engaged with said compression mechanism claim 1 , said lubricant sump being defined by said thrust plate claim 1 , said bearing support claim 1 , and said shell.3. The compressor of claim 2 , wherein said bearing support and said thrust plate both include a plurality of openings allowing said working fluid and said lubricant to flow throughout said shell.4. The compressor of claim 1 , further comprising a counterweight attached to said crankshaft and rotating with rotation of said crankshaft claim 1 , said counterweight traveling through lubricant in said lubricant sump during rotation of said crankshaft and splashing said lubricant therein to transmit said lubricant to said compression mechanism.5. The compressor of claim 4 , wherein an eccentric portion of said counterweight travels through lubricant in said lubricant sump during less than one-hundred-eighty degrees of ...

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Номер записи: 14
01-01-2015 дата публикации

CAPACITY-MODULATED SCROLL COMPRESSOR

Номер: US20150004039A1
Автор: DOEPKER Roy
Принадлежит:

A compressor may include a shell defining an internal volume containing compressed working fluid and first and second scrolls disposed within the internal volume. The first scroll may include a first spiral wrap. The second scroll may include a second spiral wrap, a suction inlet opening and a capacity-modulation aperture. The second spiral wrap may engage the first spiral wrap to define a pocket therebetween. The suction inlet opening may be sealed off from the internal volume. The capacity-modulation aperture may receive a valve member that is movable between a first position allowing leakage of fluid from the pocket to the suction inlet opening and a second position restricting leakage of fluid from the pocket. 1. A compressor comprising:a shell defining an internal volume;a first scroll disposed within said internal volume and including a first spiral wrap;a second scroll disposed within said internal volume and including a second spiral wrap engaged with said first spiral wrap to form a pocket between said first and second spiral wraps, said second scroll including a suction inlet opening, a discharge passage and a capacity-modulation aperture, said suction inlet opening receiving said fluid at a first pressure and being isolated from said internal volume, said discharge passage discharging said fluid to said internal volume at a second pressure that is higher than said first pressure; anda valve member at least partially disposed within said capacity-modulation aperture and movable between a first position in which said valve member restricts fluid to flow around a tip of said first spiral wrap to restrict fluid communication between said suction inlet opening and said pocket and a second position in which said valve member allows fluid-flow around said tip of said first spiral wrap to provide fluid communication between said suction inlet opening and said pocket.2. The compressor of claim 1 , wherein an end of said valve member is exposed to fluid within a ...

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Номер записи: 15
07-01-2016 дата публикации

COMPRESSOR AND METHOD FOR ASSEMBLING A COMPRESSOR

Номер: US20160003253A1
Автор: Ki Sunghyun, KIM Junhae, LEE Kyeongweon
Принадлежит:

A compressor and a method for assembling a compressor are provided. The compressor may include a compressor casing coupled to each of a suction inlet, into which a refrigerant may be introduced, and a discharge outlet, through which the refrigerant may be discharged, a compressor body mounted inside the compressor casing to compress the refrigerant suctioned in through the suction inlet, and then discharge the refrigerant through the discharge outlet, a noise reducing member disposed between the compressor body and the compressor casing, and at least one fixing member mounted inside the compressor casing to fix the noise reducing member to an inner wall of the compressor casing. 1. A compressor , comprising:a compressor casing coupled to each of a suction inlet, into which a refrigerant is introduced, and a discharge outlet, through which the refrigerant is discharged;a compressor body mounted inside the compressor casing to compress the refrigerant suctioned in through the suction inlet, and thereafter discharge the refrigerant through the discharge outlet;a noise reducing member disposed between the compressor body and the compressor casing; andat least one fixing member mounted inside the compressor casing to fix the noise reducing member to an inner wall of the compressor casing.2. The compressor according to claim 1 , wherein the at least one fixing member comprises a plurality of fixing members claim 1 , and wherein both ends of the noise reducing member are inserted into the plurality of fixing members claim 1 , respectively claim 1 , to be fixed to the inner wall of the compressor casing.3. The compressor according to claim 2 , wherein each of the plurality of fixing members comprises:a fixing portion fixed to the inner wall of the compressor casing, the fixing portion having a ring shape; anda protrusion that extends from the fixing portion in a direction substantially perpendicular to a radial direction of the fixing portion.4. The compressor according to ...

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Номер записи: 16
08-01-2015 дата публикации

STATOR, THREE-PHASE INDUCTION MOTOR, AND COMPRESSOR

Номер: US20150010414A1
Автор: Lin Yan, Liu Guangqiang, Liu Wanzhen, Tang Weiping, Wang Zhenyu, Yao Li
Принадлежит:

The present invention provides a stator, a three-phase induction motor and a compressor. The stator is applied to a three-phase induction motor of a compressor. The stator includes: a stator iron core; a plurality of stator teeth extending inwards along a radial direction of the stator; stator slots distributed between the plurality of stator teeth; and three phases of windings wound around the stator teeth to generate a rotating magnetic field, where a coil of each phase of winding in the three phases of windings is made of a composite wire. The composite wire includes a wire core made of a first conductive metal material, and an outer layer wrapping an outer circumferential surface of the wire core and made of a second conductive metal material, wherein the first conductive metal material and the second conductive metal material have different electrical conductivities. 1. A stator applied to a three-phase induction motor of a compressor , comprising:a stator iron core;a plurality of stator teeth extending inwards along a radial direction of the stator;stator slots distributed between the plurality of stator teeth; andthree phases of windings wound around the stator teeth to generate a rotating magnetic field, whereina coil of each phase of winding among the three phases of windings is made of a composite wire, and the composite wire comprises a wire core made of a first conductive metal material, and an outer layer wrapping an outer circumferential surface of the wire core and made of a second conductive metal material, wherein the first conductive metal material and the second conductive metal material have different electrical conductivities.2. The stator according to claim 1 , whereinthe first conductive metal material is aluminum, and the second conductive metal material is copper or a copper alloy; or,the first conductive metal material is an aluminum alloy, and the second conductive metal material is copper or a copper alloy.3. The stator according to claim ...

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Номер записи: 17
15-01-2015 дата публикации

POWDER METAL WITH SOLID LUBRICANT AND POWDER METAL SCROLL COMPRESSOR MADE THEREFROM

Номер: US20150017043A1
Автор: Donaldson Ian William, Gurosik John David S.
Принадлежит: GKN Sinter Metals, LLC

A powder metal formulation includes a solid lubricant and is particularly useful for the production of powder metal scroll compressors. 1. A powder metal scroll compressor comprising:a hub and a scroll adjoined to one another;a powder metal forming at least a portion of the powder metal scroll compressor including the scroll, the powder metal including iron powder, carbon in an amount of less than 0.9% by weight of the powder metal, and a solid lubricant in the powder metal.2. The powder metal scroll compressor of claim 1 , wherein the iron powder and solid lubricant are admixed with one another prior to compaction and sintering of the powder metal scroll compressor.3. The powder metal scroll compressor of claim 1 , wherein the solid lubricant is 0.25% to 3.0% by weight of the powder metal and the powder metal includes iron powder claim 1 , carbon claim 1 , the solid lubricant and is substantially free of other constituents.4. The powder metal scroll compressor of claim 1 , wherein the powder metal further includes copper powder in an amount of less than 3.0% by weight of the powder metal.5. The powder metal scroll compressor of claim 4 , wherein the iron powder claim 4 , the copper powder claim 4 , and the solid lubricant are admixed with one another prior to compaction and sintering of the powder metal scroll compressor and the powder metal includes iron powder claim 4 , carbon claim 4 , copper powder claim 4 , and the solid lubricant and is substantially free of other constituents.6. The powder metal scroll compressor of claim 4 , wherein the copper powder is elemental copper powder.7. The powder metal scroll compressor of claim 1 , wherein the solid lubricant is talc (MgSiO(OH)).8. The powder metal scroll compressor of claim 7 , wherein the talc has a nominal 15 to 25 micron mean particle size (d50).9. The powder metal scroll compressor of claim 1 , wherein the solid lubricant is hexagonal boron nitride (BN).10. The powder metal scroll compressor of claim 9 , ...

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Номер записи: 18
18-01-2018 дата публикации

Variable economizer injection position

Номер: US20180017059A1
Автор: Jay H. Johnson
Принадлежит: Shalewater Solutions LLC, Trane International Inc

A compressor includes a bore, a rotor disposed within the bore, a compressor inlet, and a compressor outlet. The compressor further includes a compression chamber defined between the bore and the rotor, wherein a volume of the compression chamber gradually reduces from the compressor inlet to the compressor outlet. The compressor includes an economizer. The economizer is fluidically connected to the compression chamber. The economizer is configured to inject a working fluid into the compression chamber at an injection position. The injection position is changeable according to a working condition of the compressor.

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Номер записи: 19
16-01-2020 дата публикации

SCROLL COMPRESSOR AND REFRIGERATION CYCLE APPARATUS

Номер: US20200018311A1
Автор: IWATAKE Wataru, KAWAMURA Raito, Sasaki Kei, Sekiya Shin
Принадлежит: Mitsubishi Electric Corporation

A first injection port is open to a suction chamber of a plurality of chambers at some rotation phases, and is located within an angular range defined by a line connecting a winding-end contact point of an orbiting scroll at a compression start phase with a base circle center of a fixed scroll and one of two lines tangent to a winding-end point locus of a tip seal at a tooth tip of a spiral body of the orbiting scroll and passing through a base circle center of the orbiting scroll, the one being closer to the winding-end contact point. The first injection port does not interfere with the tip seal at the tooth tip of the spiral body of the orbiting scroll. 1: A scroll compressor comprising:a hermetic container;a compression mechanism disposed in the hermetic container and including a fixed scroll and an orbiting scroll each including a spiral body disposed on a baseplate, the spiral body of the fixed scroll and the spiral body of the orbiting scroll being combined together to form a plurality of chambers including a compression chamber;a motor mechanism configured to drive the orbiting scroll; anda rotation shaft coupled to the orbiting scroll, with the orbiting scroll being eccentric from the motor mechanism, the rotation shaft being configured to transmit torque of the motor mechanism to the orbiting scroll to cause the orbiting scroll to orbit,wherein a tooth tip of the spiral body of the orbiting scroll has a tip seal;the baseplate of the fixed scroll has a first injection port intermittently opened and closed by the tooth tip of the spiral body of the orbiting scroll as the orbiting scroll orbits; andthe first injection port is open to a suction chamber of the plurality of chambers at some rotation phases, and is located within an angular range defined by a line connecting a winding-end contact point of the orbiting scroll at a compression start phase with a base circle center of the fixed scroll and one of two lines tangent to a winding-end point locus of the ...

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Номер записи: 20
16-01-2020 дата публикации

SCROLL FLUID MACHINE

Номер: US20200018313A1
Автор: ASAMI Junichi, HOSHI Kazuhide, KATO Keiya, Sato Toru
Принадлежит:

A scroll fluid machine includes a compressor body having a first scroll and a second scroll which form a compression chamber, a cover forming an air guiding space by covers at least a portion of the compressor body, and a blower fan supplying cooling air to at least one of the first scroll and the second scroll. A portion of the cooling air is supercharged into the intake port via the air guiding space whereby satisfactory compression efficiency is achieved with a simple configuration. 1. A scroll fluid machine comprising:a housing;a fixed scroll which is fixed to the housing and in which a spiral groove formed by a fixed wrap formed on a fixed end plate is blocked by a partition wall that partitions a low-pressure-side compression chamber and a high-pressure-side compression chamber;a revolving scroll which is accommodated in the housing so as to face the fixed scroll to form the low-pressure-side compression chamber and the high-pressure-side compression chamber together with the fixed scroll and is resolvable supported by a driving shaft;a cover that forms an air guiding space between the fixed scroll and the cover so that a portion of cooling air supplied to at least one of the fixed scroll and the revolving scroll can be introduced into the air guiding space;and an intermediate cooler configured to cool pressurized gas discharged from the low-pressure-side compression chamber by heat exchange with the cooling air in the air guiding space so that the cooled pressurized gas is returned to the high-pressure-side compression chamber.2. The scroll fluid machine according to claim 1 , whereinthe intermediate cooler includes a radiating pipe arranged in the air guiding space so as to connect a low-pressure-side discharge port of the low-pressure-side compression chamber and a high-pressure-side inlet port of the high-pressure-side compression chamber.3. The scroll fluid machine according to claim 2 , whereinthe radiating pipe is arranged to be folded back on an inner ...

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Номер записи: 21
22-01-2015 дата публикации

OFFSET ELECTRICAL TERMINAL BOX WITH ANGLED STUDS

Номер: US20150023820A1
Автор: Rogalski Thomas
Принадлежит: Bitzer Kuehlmaschinenbau GmbH

A compressor assembly includes a housing that is annular and surrounds a longitudinal central axis. The compressor also has a compressor housed in the housing, a terminal box, and a first stud coupling the terminal box with the housing. The first stud defines a first central axis. A second stud also couples the terminal box with the housing. The second stud defines a second central axis. Both the first and second central axes extend through the housing on the same side of the longitudinal central axis of the housing. 1. A compressor assembly comprising:a housing that is annular and surrounds a longitudinal central axis;a compressor housed in the housing;a terminal box; anda first stud coupling the terminal box with the housing, the first stud defining a first central axis; anda second stud coupling the terminal box with the housing, the second stud defining a second central axis;wherein both the first and second central axes extend through the housing on the same side of the longitudinal central axis of the housing.2. The compressor assembly of claim 1 , wherein the first central axis is substantially parallel to the second central axis.3. The compressor assembly of claim 1 , wherein second central axis of the second stud does not intersect the longitudinal central axis of the housing.4. The compressor assembly of claim 1 , wherein the first and second studs are vertically aligned.5. The compressor assembly of claim 1 , wherein the first stud and the second stud are offset horizontally and vertically relative to one another.6. The compressor assembly of claim 1 , further comprising an external block and a protection module positioned within the terminal box;wherein the first stud is arranged in a first plane that extends between the external block and the protection module; andwherein the second stud is located in a second plane parallel and non-coextensive with the first plane, the first and second planes being vertical and including the first central axis and the ...

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Номер записи: 22
25-01-2018 дата публикации

Electric compressor

Номер: US20180023568A1
Автор: Eun Seok Kang, Jung Seon Kim, Seung Hwan SHIN, Sung Jun Park, Young Hun Lee
Принадлежит: Hanon Systems Corp

An electric compressor includes a cover. The cover is reinforced by forming straight ribs, ring ribs, connection ribs, or hexagonal ribs having a honeycomb structure. The straight ribs, rings ribs, connection ribs, or hexagonal ribs are formed on the inner side or the outer side of a body of the cover on a side of an inverter.

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Номер записи: 23
01-02-2018 дата публикации

GAS COMPRESSOR

Номер: US20180030833A1
Автор: Miyaji Toshikatsu
Принадлежит: Calsonic Kansei Corporation

A gas compressor is configured such that a suction-side area that is in sliding contact with the inner circumferential surface of a cylinder chamber when a compression chamber is in the suction stroke has a larger radius of curvature than that of a compression-side area that is in sliding contact with the inner circumferential surface of the cylinder chamber when the compression chamber is in the compression stroke. 1. A gas compressor comprising:a cylinder block in a cylindrical shape, having a cylinder chamber where to compress refrigerant;a rotor rotatably provided in the cylinder chamber, the rotor having an outer circumferential surface facing an inner circumferential surface of the cylinder chamber and a plurality of vane slots opening on the outer circumferential surface with intervals in a rotational direction of the rotor; anda plurality of vanes housed in the respective vane slots and biased in a direction of protruding from the outer circumferential surface, distal end surfaces of the vanes sliding on the inner circumferential surface along with rotation of the rotor, the vanes partitioning a space between the outer circumferential surface and the inner circumferential surface into a plurality of compression chambers in which the refrigerant is sucked and compressed, whereinthe distal end surface of each of the vanes has a suction-side area that is in sliding contact with the inner circumferential surface when the compression chamber separated by the vane having the distal end surface is in a suction stroke, and a compression-side area that is in sliding contact with the inner circumferential surface when the compression chamber separated by the vane having the distal end surface is in a compression stroke,the suction-side area and the compression-side area have smaller radii of curvature than that of the inner circumferential surface, andthe suction-side area has a larger radius of curvature than that of the compression-side area.2. The gas compressor ...

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Номер записи: 24
31-01-2019 дата публикации

SCROLL COMPRESSOR SHAFT

Номер: US20190032664A1
Автор: BENCO Michael G., Crum Daniel R., Hansen George, Raymond Kenneth Andrew
Принадлежит:

A crankshaft assembly for a scroll compressor is disclosed. The crankshaft assembly includes a crankpin having a plurality of apertures therethrough. A crankshaft body has an aperture therethrough. The aperture of the crankshaft and one of the plurality of apertures of the crankpin being aligned when in an assembled state such that in operation fluid flows between the aperture of the crankshaft body and the one of the plurality of apertures of the crankpin. The crankshaft body includes a second aperture aligned with a second of the plurality of apertures of the crankpin. The crankpin and the crankshaft body are separate members. A fastener extends through the second of the plurality of apertures of the crankpin and into the second aperture of the crankshaft body to secure the crankpin and the crankshaft body together in the assembled state. 1. A crankshaft assembly for a scroll compressor , comprising:a crankpin having a plurality of apertures therethrough;a crankshaft body having an aperture therethrough, the aperture of the crankshaft and one of the plurality of apertures of the crankpin being aligned when in an assembled state such that in operation fluid flows from the aperture of the crankshaft body and the one of the plurality of apertures of the crankpin, the crankshaft body including a second aperture, the second aperture of the crankshaft body being aligned with a second of the plurality of apertures of the crankpin, wherein the crankpin and the crankshaft body are separate members; anda fastener, extending through the second of the plurality of apertures of the crankpin and into the second aperture of the crankshaft body to secure the crankpin and the crankshaft body together in the assembled state.2. The crankshaft assembly according to claim 1 , further comprising a plurality of aligning members and a plurality of alignment apertures in the crankpin and the crankshaft body to align the crankpin and the crankshaft body when assembling the crankshaft ...

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Номер записи: 25
05-02-2015 дата публикации

INTERMEDIATE OIL SEPARATOR FOR IMPROVED PERFORMANCE IN A SCROLL COMPRESSOR

Номер: US20150037183A1
Автор: Benco Michael Gerard, Lakowske Rodney, Rood Jerry Allen, Sauls John Robert, Smerud Scott Joseph
Принадлежит:

An oil lubrication system for a multi-stage compressor separates oil from a refrigerant at an intermediate pressure following the first stage of compression and then routes the separated oil at the intermediate pressure to the compressor suction cavity bearings at the intermediate pressure, thus avoiding further compression of oil in subsequent stages of compression. The efficiency of the multi-stage compressor can be increased by not raising the pressure of the oil through the subsequent stages of compression. 1. A multi-stage compressor lubrication system , comprising: [ a suction side comprising a suction side bearing oil inlet; and', 'a discharge side; and, 'an input stage comprising, a suction side comprising a suction side bearing oil inlet; and', 'a discharge side, wherein the input stage discharge side is fluidically coupled to the output stage suction side via a refrigerant pipe; and, 'an output stage comprising], 'a multi-stage compressor, comprisingan oil separator fluidically coupled to the input stage discharge side, the output stage suction side, and both the input stage suction side bearing oil inlet and the output stage suction side bearing oil inlet, wherein the oil separator is configured to receive a refrigerant and oil mixture discharged via the input stage discharge side, separate the oil from the refrigerant in the discharged mixture, fluidically transfer the separated refrigerant to the output stage suction side, and fluidically transfer the separated oil to both the input stage suction side bearing oil inlet and the output stage suction side bearing oil inlet.2. The multi-stage compressor lubrication system according to claim 1 , wherein the multi-stage compressor is a two-stage scroll compressor.3. The multi-stage compressor lubrication system according to claim 1 , wherein the multi-stage compressor is a two-stage scroll compressor comprising a first stage suction side orbiting scroll hydrodynamic thrust bearing.4. The multi-stage ...

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Номер записи: 26
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: 27
11-02-2016 дата публикации

Electric compressor

Номер: US20160040674A1
Автор: Hiroshi Fukasaku
Принадлежит: Toyota Industries Corp

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

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Номер записи: 28
08-02-2018 дата публикации

Compressor and Bearing Assembly

Номер: US20180038371A1
Автор: Ahire Pankaj Nimbaji, Jorwekar Pavankumar, Juge Vinayak Madanrao, Ramaswamy Ramprasad
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor is provided and may include a shell, a hub, an insert, and at least one collar. The hub may be disposed within the shell and define an axis of rotation. The hub may include an axially extending aperture. The insert may be disposed within the aperture. The at least one collar may be disposed about the hub. 1. A compressor comprising:a shell;a compression mechanism disposed within said shell;a drive shaft drivingly engaged with the compression mechanism;a hub disposed within said shell and defining an axis of rotation, said hub including an axially extending aperture, said drive shaft engaged with said axially extending aperture;a bearing insert disposed within said aperture and rotatably supporting said drive shaft; andan arresting arrangement adapted to restrain relative movement between said bearing insert and said hub, said arresting arrangement including a retainer disposed on an inner diameter of the hub to maintain said bearing insert within said hub.2. The compressor of claim 1 , wherein said retainer is a ring disposed within said hub.3. The compressor of claim 2 , wherein said ring includes a plurality of longitudinally extending legs claim 2 , said legs adapted to engage with an inner periphery of said hub restraining movement of said ring with respect to said hub claim 2 , and thereby restraining movement of said bearing insert with respect to said hub.4. The compressor of claim 3 , wherein said ring further includes micro projections between said legs and extending radially from said ring claim 3 , said micro projections adapted to engage with said inner periphery of said hub claim 3 , thereby providing anti-rotation support of said ring with respect to said hub.5. The compressor of claim 3 , wherein said ring is an elliptical retaining ring.6. The compressor of claim 5 , wherein said elliptical retaining ring is press fit into said hub to retain said bearing insert in said hub and restrict spinning and axial walk out of said bearing insert.7 ...

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Номер записи: 29
26-02-2015 дата публикации

SEALED COMPRESSOR AND VAPOR COMPRESSION REFRIGERATION CYCLE APPARATUS INCLUDING THE SEALED COMPRESSOR

Номер: US20150052936A1
Автор: Kato Taro, Maeyama Hideaki, MOROE Shogo, NAGASAWA Hiroki, Nishiki Teruhiko, Shingu Keisuke, Shirafuji Yoshinori, Yokoyama Tetsuhide
Принадлежит: Mitsubishi Electric Corporation

A sealed compressor includes a centrifugal impeller above a rotor to synchronously rotate. A refrigerant rises through a rotor air hole, flows in an upper space, and flows out from a discharge pipe. The centrifugal impeller includes an oil separation plate on the rotor, and plural vanes standing on the oil separation plate, and forms inter-vane flow passages between adjacent vanes, and a vane inner flow passage that guides refrigerant from the rotor air hole to inner entrances of the inter-vane flow passages. Outer exits of the inter-vane flow passages are disposed along an entire circumference, and refrigerant increased in pressure while passing through the inter-vane flow passages flows out from the outer exits to the upper space. The oil separation plate closes a short-circuit passage through which the refrigerant directly flows from the vane inner flow passages to the discharge pipe without passing through the inter-vane flow passages. 1. A sealed compressor comprising:a sealed container that stores lubricant oil at a bottom thereof;a motor that is provided within the sealed container and has a stator and a rotor;a drive shaft attached to the rotor;a compression mechanism that is provided within the sealed container and configured to compress a refrigerant upon rotation of the drive shaft;a centrifugal impeller that is provided above the rotor and configured to rotate in synchronization with the rotor;a rotor air hole that penetrates the rotor in an up-down direction; anda discharge pipe configured to cause the refrigerant, upon flowing into a lower space of the motor, rising through the rotor air hole, and flowing into an upper space of the motor, to flow out from the upper space to an external circuit of the sealed container,wherein the centrifugal impeller includesan oil separation plate and a lower surface partition plate that are provided on an upper side of an upper end of the rotor so as to be spaced apart from each other,a plurality of vanes that stand ...

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Номер записи: 30
14-02-2019 дата публикации

SCROLL PUMP TIP SEALING

Номер: US20190048721A1
Автор: Jones Peter David, Lamb Peter Charles
Принадлежит:

A scroll pump tip seal to seal a single stage of a scroll pump that includes a first scroll and a second scroll. The tip seal is formed of a plurality of seal segments fitted contiguously end to end to a tip face the scroll wall of the scroll to form a continuous seal between the tip face and a base plate of the second scroll. 1. A scroll pump comprising:an orbiting scroll;a fixed scroll; anda driver configured to impart an orbiting motion to the orbiting scroll relative to the fixed scroll;wherein said orbiting scroll comprises an orbiting scroll base plate and an orbiting scroll wall extending from said orbiting scroll base plate towards said fixed scroll and said fixed scroll comprises a fixed scroll base plate and a fixed scroll wall extending from said fixed scroll base plate towards said orbiting scroll,said orbiting scroll wall has a tip face that faces said fixed scroll base plate and said fixed scroll wall has a tip face that faces said orbiting scroll base plate,said tip face of the orbiting scroll wall is provided with a first tip seal arrangement for sealing between the orbiting scroll wall and the fixed scroll base plate and said tip face of the fixed scroll wall is provided with a second tip seal arrangement for sealing between the fixed scroll wall and the orbiting scroll plate, andat least one of said first and second tip seal arrangements comprises a plurality of seal segments disposed contiguously end to end on the respective said tip face.2. The scroll pump as claimed in claim 1 , wherein said seal segments each comprise planar end faces and are arranged such that respective opposed said end faces of adjacent said seal segments are in abutting relationship.3. The scroll pump as claimed in claim 1 , wherein said seal segments each comprise end faces and are arranged such that respective opposed said end faces of adjacent said seal segments are disposed in overlapping relationship.4. The scroll pump as claimed in claim 3 , wherein said overlapping ...

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Номер записи: 31
15-05-2014 дата публикации

MOTOR-DRIVEN COMPRESSOR

Номер: US20140134014A1
Автор: FUKASAKU Hiroshi, Hishinuma Yumin, Mera Minoru, TAKIMOTO Shuji
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

A motor-driven compressor includes a compression unit, an electric motor, a motor drive circuit, a housing, and a first end plate. The electric motor includes a rotation shaft, a rotor provided with a rotor core, and a stator. The stator includes a state core and a coil. The coil includes first and second coil ends. The rotor core includes a refrigerant passage having a first opening that opens in the compression unit side. The first opening includes a first radially outer region. First and second regions in the housing are in communication through the refrigerant passage. The first end plate includes a first communication port arranged on a first region side end of the rotor core. The first region and the refrigerant passage are in communication through the first opening and first communication port. The first radially outer region is covered by the first end plate. 1. A motor-driven compressor comprising:a compression unit; rotation of the rotation shaft drives the compression unit,', 'the stator includes a stator core, which is provided with teeth, and a coil, which is arranged in a slot between the teeth,', 'the coil includes a first coil end, which is located at a compression unit side, and a second coil end, which is located at an opposite side of the compression unit side,', 'the rotor core includes a refrigerant passage extending through the rotor core along an axial direction of the rotation shaft,', 'the refrigerant passage includes a first opening that opens in the compression unit side, and', 'the first opening includes a first radially outer region located at an outer side of the first opening in the radial direction of the rotation shaft;, 'an electric motor including a rotation shaft coupled to the compression unit, a rotor rotated integrally with the rotation shaft and including a rotor core, and a stator surrounding the rotor, wherein'}a motor drive circuit that drives the electric motor; the stator is fixed to an inner surface of the housing,', ' ...

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Номер записи: 32
15-05-2014 дата публикации

COMPRESSOR VALVE SYSTEM AND ASSEMBLY

Номер: US20140134030A1
Автор: BONEAR Ronald E., IGNATIEV Kirill M., Stover Robert C.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor may include first and second scroll members having first and second scroll wraps, respectively. The scroll members define a suction inlet, a discharge outlet, and fluid pockets moving therebetween. The second scroll member may include a port, and a passage. The port may be in fluid communication with at least one of the pockets. The passage may extend through a portion of the second end plate and may be in fluid communication with the port. A valve assembly may be disposed in the passage and may include a valve member displaceable between open and closed positions. A recompression volume may be disposed between the valve member and the at least one of the pockets. The recompression volume may be less than or equal to approximately one percent of a volume of one of the pockets at a suction seal-off position. 1. A compressor comprising:a first scroll member including a first scroll wrap extending from a first end plate;a second scroll member including a second scroll wrap extending from a second end plate, a port, and a passage, said second scroll wrap being intermeshed with said first scroll wrap, said first and second scroll members defining a suction inlet, a discharge outlet and fluid pockets moving between said suction inlet and said discharge outlet, said port being in fluid communication with at least one of said fluid pockets, said passage extending through a portion of said second end plate and in fluid communication with said port and a fluid region;a valve assembly disposed in said passage and including a valve member displaceable between open and closed positions; anda recompression volume disposed between said valve member and said at least one of said pockets, said recompression volume being less than or equal to approximately one percent of a volume of one of said pockets at a suction seal-off position.2. The compressor of claim 1 , wherein said recompression volume is less than or equal to approximately three-hundredths (0.03) percent of ...

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Номер записи: 33
15-05-2014 дата публикации

COMPRESSOR

Номер: US20140134031A1
Автор: DOEPKER Roy J., PEREVOZCHIKOV Michael M.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor may include first and second scrolls, a hub plate and a valve. The first scroll may include an end plate defining first and second sides, a primary discharge passage extending therethrough, and a secondary discharge passage extending therethrough and located radially outward from the primary discharge passage. The hub plate may be mounted to the first scroll and may include first and second opposite sides and a hub discharge passage in fluid communication with the primary discharge passage. The first side of the hub plate may face the second side of the end plate and may include a valve guide extending axially toward the end plate adjacent the hub discharge passage. The valve member may be secured on the valve guide for axial movement between open and closed positions to respectively allow and restrict fluid communication between the secondary discharge passage and the hub discharge passage. 1. A compressor comprising:a first scroll member including a first end plate defining first and second sides opposite one another, a primary discharge passage extending through said first and second sides, a secondary discharge passage extending through said first and second sides and located radially outward from said primary discharge passage, and a first spiral wrap extending from said first side;a second scroll member including a second end plate having a second spiral wrap extending therefrom and meshingly engaged with said first spiral wrap to form compression pockets; anda hub plate mounted to said first scroll member and including first and second sides opposite one another and having a hub discharge passage extending therethrough and in fluid communication with said primary discharge passage, said first side of said hub plate facing said second side of said first end plate and including a valve guide disposed adjacent said hub discharge passage and extending axially toward said first spiral wrap; anda valve member retained by said valve guide for axial ...

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Номер записи: 34
22-05-2014 дата публикации

REFRIGERATION COMPRESSOR AND A METHOD FOR ASSEMBLING SUCH A REFRIGERATION COMPRESSOR

Номер: US20140140866A1
Автор: BONNEFOI Patrice, MELDENER Gael, PFISTER Jean Michel, XUEYOU Zhou
Принадлежит:

This refrigeration compressor includes an electric motor having a stator and a rotor provided with an axial through passage, a compression unit adapted for compressing refrigerant, and a drive shaft adapted for driving the compression unit, the drive shaft extending into the axial through passage of the rotor. The rotor is slide-fitted on the drive shaft. 1. A refrigeration compressor comprising:an electric motor having a stator and a rotor, the rotor being provided with an axial through passage,a compression unit adapted for compressing refrigerant,a drive shaft shaft adapted for driving the compression unit, the drive shaft extending into the axial through passage of the rotor and being connected to the rotor, the drive shaft extending, in use, substantially vertically, anda positioning element secured on the drive shaft, the positioning element having an axial stop surface on which rests a lower end portion of the rotor, the axial stop surface being arranged to slidably co-operate with a lower end portion of the rotor,wherein the connection between the rotor and the drive shaft is arranged to allow limited relative movements between the rotor and the drive shaft during start and normal operations of the refrigeration compressor.2. The refrigeration compressor according to claim 1 , wherein the rotor is slide-fitted on the drive shaft.3. The refrigeration compressor according to claim 1 , further comprising a locking element adapted to rotatably couple the drive shaft to the rotor.4. The refrigeration compressor according to claim 3 , wherein an outer surface of the drive shaft has a first longitudinal recess claim 3 , and an inner surface of the rotor has a second longitudinal recess claim 3 , the first and second longitudinal recesses being circumferentially aligned and the locking element extending into the first and second longitudinal recesses.5. The refrigeration compressor according to claim 3 , wherein the locking element is adapted to allow limited ...

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Номер записи: 35
22-05-2014 дата публикации

VARIABLE SPEED SCROLL COMPRESSOR

Номер: US20140140867A1
Автор: BONNEFOI Patrice, MELDENER Gael
Принадлежит:

This variable speed scroll compressor includes a closed casing including a low pressure volume and a high pressure volume, and an electric motor arranged in the low pressure volume and including a rotor and a stator, the rotor including permanent magnets, the stator including a stator core provided with a plurality of radially extending tooth portions and with a plurality of slots formed between the radially extending tooth portions, and stator windings each wound on the radially extending tooth portions. Each stator winding is wound around a respective tooth portion and includes winding portions extending respectively in the slots formed on each side of the respective tooth portion. 2. The variable speed scroll compressor according to claim 1 , wherein the ratio of the sum of the refrigerant flow passages cross-sectional areas to the stator cross-sectional area is between 3 and 14%.3. The variable speed scroll compressor according to claim 1 , wherein the variable speed scroll compressor is configured to force at least a part of the refrigerant entering the refrigerant suction inlet to pass through the refrigerant flow passages of the slots.4. The variable speed scroll compressor according to claim 1 , further comprising an intermediate jacket surrounding the stator claim 1 , the intermediate jacket delimiting an annular outer volume with the closed casing and at least an inner chamber claim 1 , which contains a first winding head of the stator directed towards the high pressure volume.5. The variable speed scroll compressor according to claim 1 , further comprising a locking element adapted to rotatably couple the drive shaft to the rotor.6. The variable speed scroll compressor according to claim 5 , wherein an outer surface of the drive shaft has a first longitudinal recess claim 5 , and an inner surface of the rotor has a second longitudinal recess claim 5 , the first and second longitudinal recesses being circumferentially aligned and the locking element ...

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Номер записи: 36
22-05-2014 дата публикации

SCROLL COMPRESSOR WITH OIL-COOLED MOTOR

Номер: US20140140868A1
Автор: BONEAR Ronald E., IGNATIEV Kirill M., Stover Robert C.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor may include a shell, a compression mechanism, a motor, a pumping mechanism, and a heat exchanger. The shell may define an internal cavity and an oil sump. The compression mechanism is disposed the said shell. The motor is coupled to a driveshaft for selectively powering the compression mechanism. The pumping mechanism may be in fluid-pumping communication with the oil sump. The first heat exchanger may be disposed external from the shell and in fluid communication with the pumping mechanism. The first heat exchanger may cool the oil prior to returning the cooled oil to the internal cavity. 1. A compressor comprising:a shell defining an internal cavity and an oil sump;a compression mechanism disposed within said shell;a motor coupled to a driveshaft for selectively powering said compression mechanism;a pumping mechanism in fluid-pumping communication with said oil sump; anda first heat exchanger disposed external from said shell and in fluid communication with said pumping mechanism, said first heat exchanger cooling said oil prior to returning said cooled oil to said internal cavity.2. The compressor of claim 1 , further comprising first and second conduits claim 1 , said first conduit in fluid communication with said pumping mechanism at a first end and in fluid communication with said first heat exchanger at a second end claim 1 , said second conduit in fluid communication with said first heat exchanger at a first end and in fluid communication with said internal cavity at a second end.3. The compressor of claim 1 , wherein said drive shaft includes a first end disposed proximate to said oil sump and a second end disposed proximate to said compression mechanism claim 1 , said drive shaft operable to transport said oil from said oil sump to said second end.4. The compressor of claim 3 , further comprising a counterweight fixed to said driveshaft proximate to said second end.5. The compressor of claim 4 , wherein said counterweight is rotatably received ...

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Номер записи: 37
22-05-2014 дата публикации

COMPRESSOR WITH SERVICE VALVE ASSEMBLY

Номер: US20140140876A1
Автор: Bingham Larry L., REINHART KEITH J.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A scroll machine according to the present disclosure can include a shell, a first scroll member, a second scroll member and a valve assembly. The valve assembly can permit intermediate pressure in the shell to flow to an area of suction pressure in the shell. The valve assembly can include a first valve manifold that selectively couples to the shell. A second valve manifold can slidably and non-threadably locate against the first valve manifold. A retainer can couple to the first valve manifold to capture the second valve manifold against the first valve manifold. A valve can selectively connect an intermediate flow exiting the shell through the first and second valve manifolds to a suction flow entering the shell. 1. A scroll machine comprising:a shell;a first scroll member disposed in the shell and having a first spiral wrap;a second scroll member disposed in the shell and having a second spiral wrap, the second spiral wrap being intermeshed with the first spiral wrap; a first valve manifold that selectively couples to the shell;', 'a second valve manifold that slidably and non-threadably locates against the first valve manifold;', 'a retainer that couples to the first valve manifold to capture the second valve manifold against the first valve manifold; and', 'a valve that selectively connects an intermediate flow exiting the shell through the first and second valve manifolds and to a suction flow entering the shell., 'a valve assembly that permits intermediate pressure in the shell to flow to an area of suction pressure in the shell, the valve assembly comprising2. The scroll machine of wherein the valve comprises a first valve and a second valve.3. The scroll machine of wherein the first valve and the second valve are solenoid actuated.4. The scroll machine of wherein the first valve manifold is threadably coupled to a cylinder mount on the shell.5. The scroll machine of wherein the retainer is threadably coupled to the first valve manifold.6. The scroll machine ...

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Номер записи: 38
22-05-2014 дата публикации

SCROLL-TYPE VOLUME DISPLACEMENT APPARATUS WITH AN ORBITING THRUST BEARING

Номер: US20140140877A1
Автор: Ni Shimao
Принадлежит: ADVANCED SCROLL TECHNOLOGIES (HANGZHOU) INC.

A scroll-type volume displacement apparatus with an orbiting thrust bearing. A scroll element of the first end plate in a fixed scroll engages with a scroll element of the second end plate in an orbiting scroll, the fixed scroll and the orbiting scroll are set in the main housing respectively. The purpose of the apparatus is to set the thrust ball bearing between the orbiting scroll and the base shell, which can orbit along the orbiting scroll, so as to balance the potential shake generated in the orbiting movement along the orbiting scroll through the multi-group thrust ball bearings. And, by the sealed contact between the orbiting scroll and the thrust ball bearing, the axial deviating force of the orbiting scroll can seal the pressure chamber to keep the slight contact of the front and behind face of the two scrolls which engages with each other. 120705060. A scroll-type volume displacement apparatus with an orbiting thrust bearing , comprises a main housing () , a base shell () , a fixed scroll () and an orbiting scroll ();{'b': 172', '172', '93', '95', '95', '172', '60, 'i': a,', 'b, 'wherein also comprises an orbiting trust bearing (), said orbiting thrust bearing () is connected with a bearing block end plate () of said orbiting scroll by pins (), said orbiting thrust bearing () orbits in a similar way to the orbiting scroll ().'}21729595601729595a,ba,b. A scroll-type volume displacement apparatus with an orbiting thrust bearing as claimed in claim 1 , wherein said orbiting thrust bearing () sliding fits with said pins () claim 1 , said orbiting scroll () drives said orbiting thrust bearing () orbit by said pins ().3606183172616083616050. A scroll-type volume displacement apparatus with an orbiting thrust bearing as claimed in claim 1 , wherein said orbiting scroll () contains a second end plate () claim 1 , a pressure chamber () forms between said orbiting thrust bearing () and said second end plate () of said orbiting scroll () claim 1 , the pressure of ...

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Номер записи: 39
28-02-2019 дата публикации

Scroll compressor

Номер: US20190063436A1
Автор: Hideaki Nagata, Masayuki Kakuda, Tomokazu Matsui, Yuji Takamura
Принадлежит: Mitsubishi Electric Corp

A scroll compressor includes a slider including a cylindrical portion supported by a rocking bearing provided on an orbiting scroll so that it rotates freely, and a balance weight portion connected to the cylindrical portion. When a direction opposite to an eccentric direction of the orbiting scroll is a counter eccentric direction and a direction of a central axis of the rocking bearing is a Z-axis direction, the balance weight portion includes a main weight portion provided at a position distant from a center of rotation of the slider in the counter eccentric direction, and a counter-weight portion provided at a position spaced away from the orbiting scroll than a position of a center of the rocking bearing in the Z-axis direction and at a position distant from the center of rotation of the slider in the eccentric direction.

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Номер записи: 40
05-06-2014 дата публикации

SCROLL COMPRESSOR WITH VARIABLE VOLUME RATIO PORT IN ORBITING SCROLL

Номер: US20140154124A1
Автор: DOEPKER Roy J., PEREVOZCHIKOV Michael M., Stover Robert C.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor may include a first scroll member, a second scroll member and a drive shaft. The first scroll member may include a first end plate defining a first discharge port and a first spiral wrap extending from the first end plate. The second scroll member may include a second end plate defining a first variable volume ratio port and a second spiral wrap extending from the second end plate and meshingly engaged with the first spiral wrap and forming compression pockets. The variable volume ratio port may be located radially outward relative to the first discharge port and in communication with a first compression pocket. The drive shaft may be engaged with the second scroll member and driving orbital displacement of the second scroll member relative to the first scroll member. 1. A compressor comprising:a first scroll member including a first end plate defining a first discharge port and a first spiral wrap extending from said first end plate;a second scroll member including a second end plate defining a first variable volume ratio port and a second spiral wrap extending from said second end plate and meshingly engaged with said first spiral wrap and forming compression pockets, said variable volume ratio port located radially outward relative to said first discharge port and in communication with a first compression pocket; anda drive shaft engaged with said second scroll member and driving orbital displacement of said second scroll member relative to said first scroll member.2. The compressor of claim 1 , wherein said second end plate defines a second discharge port and said first and second spiral wraps define a central discharge pocket in communication with said first and second discharge ports.3. The compressor of claim 2 , further comprising a variable volume ratio valve displaceable between a closed position and an open position claim 2 , said variable volume ratio valve isolating said variable volume ratio port from said discharge pocket when in the ...

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Номер записи: 41
19-06-2014 дата публикации

Scroll Liquid Pump

Номер: US20140170009A1
Автор: HWANG BooSeok, HWANG KwangSeon
Принадлежит: RichStone Limited

An orbiting scroll having three sets of wraps is combined on a fixed scroll having three sets of wraps integral to a frame facing each other. The orbiting scroll is adhered on the fixed scroll by the discharge pressure acted to a part of the backside of the orbiting scroll. The orbiting scroll is finely movable to the radial direction and the wraps of the both scrolls contact each other. Thereby it provides a scroll liquid pump that increases the pressure and carries the liquid refrigerant or oil. 1. A scroll liquid pump , whereinan orbiting scroll having three sets of orbiting wraps is combined to the fixed scroll having three sets of fixed wraps facing each other,such that a pumping chamber is formed by each pair of orbiting and fixed wraps;a primary bearing is placed on the center part of the fixed scroll;a secondary bearing is placed in a bearing housing integral to the fixed scroll,a rotary shaft is provided supported by the primary bearing and the secondary bearing, the rotary shaft carrying a crank shaft;an orbiting bearing housing open to the surface of the orbiting scroll on which the orbiting wraps are carried is placed in the center part of the orbiting scroll;an orbiting bearing is provided in the orbiting bearing housing; and the orbiting bearing is fitted to the crank shaft.2. The scroll liquid pump according to claim 1 , whereina rotary ring is mounted on the crank shaft;the rotary ring has an elongate hole;the crank shaft has a flattened part fitted by loose fitting into the elongate hole;the rotary ring is finely movable in a direction of a long axis of the elongate hole against the crank shaft;the long axis of the elongate hole of the rotary ring and of the flattened part of the crank shaft make a non-zero receding angle with a line joining the centre of the crank shaft and the centre of the rotary shaft against the rotating direction.3. The scroll liquid pump according to claim 1 , whereinoutlet ports are placed in the center part of the orbiting ...

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Номер записи: 42
25-03-2021 дата публикации

In-vehicle motor-driven compressor

Номер: US20210090776A1
Автор: Hiroshi Fukasaku, Junya KAIDA, Shunsuke AMBO, Takashi Kawashima, Yoshiki Nagata
Принадлежит: Toyota Industries Corp

An in-vehicle motor-driven compressor includes a common mode choke coil. The common mode choke coil includes an annular core having a through-hole, a first winding and a second winding wound around the core, and a coated conductive wire. The second winding is opposed to the first winding while being spaced apart from the first winding. The coated conductive wire is wound around the core so as to surround the first winding, the second winding, and the core. The coated conductive wire has sections that are opposed to each other with the through-hole in between. An electric wire of the coated conductive wire is wound multiple turns around the core so as to at least partly overlap with the first and second windings. Both ends of the electric wire are electrically connected to each other. The core includes an exposed section that is not covered with the coated conductive wire.

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Номер записи: 43
19-03-2020 дата публикации

SCROLL COMPRESSOR

Номер: US20200088198A1
Автор: AHN Hyun Seong, Jeong Soo Cheol, Lim Kweon Soo, MOON Chi Myeong, Park Chang Eon, Shin In Cheol
Принадлежит:

A scroll compressor that includes a rotating shaft, an eccentric bush having a recess, into which one end of the shaft is inserted, and an eccentric portion eccentric to the shaft, an orbiting scroll operatively connected to the eccentric portion for orbiting, a fixed scroll engaged with the orbiting scroll, and a buffer member interposed between the one end of the shaft and the recess. Therefore, it is possible to prevent damage to the scrolls due to liquid refrigerant compression during initial operation and to prevent an impact sound between the shaft and the eccentric bush due to the rotational clearance therebetween. 1. A scroll compressor comprising:a shaft rotated by a drive source;an eccentric bush having a recess, into which a first end of the shaft is inserted, and an eccentric portion eccentric to the shaft;an orbiting scroll operatively connected to the eccentric portion for orbiting;a fixed scroll engaged with the orbiting scroll; anda buffer member interposed between the first end of the shaft and the recess.2. The scroll compressor according to claim 1 , wherein:a buffer member's one end insertion groove is formed on a tip surface of the first end of the shaft so that a first end of the buffer member is inserted into the buffer member's one end insertion groove;a buffer member's other end insertion groove is formed on a base surface of the recess facing the tip surface of the first end of the shaft so that a second end of the buffer member is inserted into the buffer member's other end insertion groove;a clearance is present between an inner peripheral surface of the recess and an outer peripheral surface of the first end of the shaft and between an inner peripheral surface of the buffer member's other end insertion groove and an outer peripheral surface of the second end of the buffer member; andthe clearance allows the outer peripheral surface of the second end of the buffer member to come into contact with the inner peripheral surface of the buffer ...

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Номер записи: 44
26-06-2014 дата публикации

SCROLL COMPRESSOR HAVING A FIRST AND SECOND OLDHAM COUPLINGS

Номер: US20140178228A1
Автор: BONNEFOI Patrice, Claudin Ingrid, ROSSON Yves
Принадлежит:

This scroll compressor includes first and second fixed scroll members, first and second orbiting scroll members, a first Oldham coupling provided between the first orbiting scroll member and the first fixed scroll member and configured to prevent rotation of the first orbiting scroll member with respect to the first fixed scroll member, and a second Oldham coupling provided between the second orbiting scroll member and the second fixed scroll member and configured to prevent rotation of the second orbiting scroll member with respect to the second fixed scroll member. The first Oldham coupling is slidably mounted with respect to the first fixed scroll member along a first displacement direction, and the second Oldham coupling is slidably mounted with respect to the second fixed scroll member along a second displacement direction parallel with respect to first displacement direction. First and second orbiting scroll members are configured to operate in phase opposition. 2. The scroll compressor according to claim 1 , wherein the orbital diameter of the first orbiting scroll member is substantially equal to the orbital diameter of the second orbiting scroll member.3. The scroll compressor according to claim 2 , wherein the orbital centers of the first and second orbiting scroll members are offset from each other by a predetermined distance substantially equal to the orbital diameters of the first and second orbiting scroll members.4. The scroll compressor according to claim 1 , further comprising:a first Oldham coupling provided between the first orbiting scroll member and the first fixed scroll member, and configured to prevent rotation of the first orbiting scroll member with respect to the first fixed scroll member the first Oldham coupling being slidably mounted with respect to the first fixed scroll member along a first displacement direction,a second Oldham coupling provided between the second orbiting scroll member and the second fixed scroll member, and ...

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Номер записи: 45
26-06-2014 дата публикации

SCROLL COMPRESSOR HAVING FIRST AND SECOND OLDHAM COUPLINGS

Номер: US20140178229A1
Автор: BONNEFOI Patrice, Claudin Ingrid, ROSSON Yves
Принадлежит:

This scroll compressor includes a first fixed scroll member, an orbiting scroll arrangement including a first orbiting scroll member, a first Oldham coupling provided between the first orbiting scroll member and the first fixed scroll member and configured to prevent rotation of the first orbiting scroll member with respect to the first fixed scroll member, a fixed element opposite to the first fixed scroll member with respect to the orbiting scroll arrangement, and a second Oldham coupling provided between the orbiting scroll arrangement and the fixed element and configured to prevent rotation of the orbiting scroll arrangement with respect to the fixed element. The first Oldham coupling is slidable with respect to the first fixed scroll member along a first displacement direction, and the second Oldham coupling is slidable with respect to the fixed element along a second displacement direction transverse to the first displacement direction. 1. A scroll compressor comprising:a first fixed scroll member comprising a first fixed end plate and a first fixed spiral wrap provided on one face of the first fixed end plate,an orbiting scroll arrangement including at least a first orbiting scroll member comprising a first orbiting end plate and a first orbiting spiral wrap provided on one face of the first orbiting end plate, the first fixed spiral wrap and the first orbiting spiral wrap forming a plurality of first compression chambers,a first Oldham coupling provided between the first orbiting scroll member and the first fixed scroll member, and configured to prevent rotation of the first orbiting scroll member with respect to the first fixed scroll member, the first Oldham coupling being slidable with respect to the first fixed scroll member along a first displacement direction,a second Oldham coupling configured to prevent rotation of the orbiting scroll arrangement with respect to the first fixed scroll member, the second Oldham coupling being slidable with respect to ...

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Номер записи: 46
04-04-2019 дата публикации

Scroll pump tip sealing

Номер: US20190101118A1
Автор: Peter Charles LAMB, Peter David Jones
Принадлежит: Edwards Ltd

A scroll pump tip seal to be fitted to a tip face of a scroll wall of a first scroll of a scroll pump to seal between the tip face and a base plate of a second scroll of the scroll pump has a first end, a second end and a plurality of flexure formations. The flexure formations are at least partial discontinuities in the tip seal disposed at spaced apart intervals between the first and second ends of the tip to facilitate lateral flexure of the tip seal.

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Номер записи: 47
02-06-2022 дата публикации

REFRIGERANT BYPASS SOLUTION

Номер: US20220170465A1
Автор: Yang Hongwei
Принадлежит:

Systems, methods, and computer-readable mediums are provided for improving the efficiency of a filter-type oil separator in a cooling system including a compressor that pumps a mixture of lubricating oil and refrigerant through the filter-type oil separator. The filter type oil separator is configured to receive a first portion of the mixture from the compressor, and a bypass line is configured to bypass a second portion of the mixture around the filter-type oil separator. The bypass line ensures a sufficient amount of oil is present in the compressor. 1. A system improving efficiency of a filter-type oil separator , the system comprising:a compressor configured to compress and pressurize a mixture of refrigerant and lubricant;a filter-type oil separator configured to receive a first portion of the compressed mixture of refrigerant and lubricant from the compressor; anda bypass line configured to bypass a second portion of the compressed mixture of refrigerant and lubricant around the filter-type oil separator.2. The system of claim 1 , further comprising:a bypass valve configured to receive the second portion of the mixture of refrigerant and lubricant and provide a bypass path around the filter-type oil separator for the second portion of the mixture.3. The system of claim 2 , wherein the bypass line includes the bypass valve.4. The system of claim 2 , further comprising: process one or more input signals;', 'determine a speed value of the compressor based on the one or more input signals; and', 'adjust the bypass valve based on the speed value., 'a controller configured to5. The system of claim 4 , wherein the compressor is a variable speed compressor; andthe one or more input signals represent a driving frequency of the compressor.6. The system of claim 4 , wherein the controller is configured to determine the speed value by calculating a value of refrigerant gas flow rate at a discharge side of the compressor and determining a correspondence between compressor ...

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Номер записи: 48
25-08-2022 дата публикации

HIGH-SPEED GEAR-DRIVEN SPINNING SCROLL

Номер: US20220268281A1
Автор: Nicholas Nathan D.
Принадлежит:

A gear-driven spinning scroll device is provided. The scroll device comprises a housing defining a working fluid volume and a lubrication chamber defining a lubrication volume. The working fluid volume and the lubrication volume are separated from one another. The device also comprises a first scroll rotatably supported by one of a set of second drive gears and a second scroll rotatably supported by another one of the set of second drive gears. The set of second drive gears are disposed in the lubrication volume. The device also comprises a motor and a drive shaft connected to the motor. The drive shaft is supported by a set of first drive gears disposed in the lubrication volume and is configured to transmit torque from the motor to each of the first scroll and the second scroll via the set of first drive gears and the set of second drive gears. 1. A spinning scroll device comprising:a housing defining a working fluid volume;a lubrication chamber defining a lubrication volume, wherein the working fluid volume and the lubrication volume are separated from one another;a first scroll mounted within the housing and rotatably supported by one of a set of second drive gears, the set of second drive gears disposed in the lubrication volume;a second scroll mounted within the housing and rotatably supported by another one of the set of second drive gears;a motor; anda drive shaft operatively connected to the motor, the drive shaft supported by a set of first drive gears, the drive shaft configured to transmit torque from the motor to each of the first scroll and the second scroll via the set of first drive gears and the set of second drive gears, the set of first drive gears disposed in the lubrication volume.2. The spinning scroll device of claim 1 , further comprising a set of bearing plates coupled to the housing and a set of cover plates respectively coupled to the set of bearing plates claim 1 , wherein the housing claim 1 , the set of bearing plates claim 1 , and the ...

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Номер записи: 49
16-04-2020 дата публикации

COMPRESSOR

Номер: US20200116149A1
Автор: KIM Cheolhwan, LEE Seungmock
Принадлежит:

A compressor includes: a case including a discharge part configured to discharge refrigerant and defining a reservoir space configured to store oil; a drive unit including a stator and a rotor; a rotary shaft coupled to the rotor; a compression unit coupled to the rotary shaft and lubricated with oil, the compression unit being configured to compress refrigerant and discharge compressed refrigerant in a direction away from the discharge part; a muffler coupled to the compression unit and configured to guide refrigerant to the discharge part; a separator coupled to at least one of the rotor or the rotary shaft and configured to separate oil from refrigerant guided to the discharge part; and a coupling unit that fixes the separator to the at least one of the rotor or the rotary shaft. 1. A compressor comprising:a case that comprises a discharge part disposed at one side of the case to discharge refrigerant, and a reservoir space configured to store oil;a drive unit comprising (i) a stator coupled to an inner circumferential surface of the case and configured to generate a rotary magnetic field and (ii) a rotor disposed inside the stator and configured to rotate relative to the stator by the rotary magnetic field;a rotary shaft coupled to the rotor;a compression unit coupled to the rotary shaft and lubricated with oil, the compression unit being configured to compress refrigerant and discharge compressed refrigerant in a direction away from the discharge part;a muffler coupled to the compression unit and configured to guide refrigerant to the discharge part;a separator coupled to at least one of the rotor or the rotary shaft and configured to separate oil from refrigerant guided to the discharge part; anda coupling unit that fixes the separator to the at least one of the rotor or the rotary shaft.2. The compressor according to claim 1 , wherein the separator comprises:a coupling body coupled to the at least one of the rotor or the rotary shaft; anda separation body ...

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Номер записи: 50
12-05-2016 дата публикации

SOUND CONTROL FOR A HEATING, VENTILATION, AND AIR CONDITIONING UNIT

Номер: US20160131139A1
Автор: Garvin Timothy G., Mehta Pavak, Rockwood William B.
Принадлежит:

Systems and methods to isolate a vibration source (e.g., a compressor) externally are disclosed. The embodiments generally include preventing/reducing vibration and/or pulsation transmission from the vibration source by one or more functional/structural isolating members, and preventing/reducing sound radiated from the vibration source by one or more sound enclosures. 1. An external isolation system for a vibration source , comprising:a sound enclosure configured to surround the vibration source so as to reduce sound radiated from the vibration source;a structural isolating member configured to support the vibration source and passively damp vibrations and/or pulsations; anda functional isolating member configured to maintain a functional connection with the vibration source.2. The external isolation system of claim 1 , wherein the functional isolating member includes a muffler equipped to a working fluid port of the vibration source.3. The external isolation system of claim 1 , wherein the functional isolating member includes an isolating conduit equipped to a working fluid port of the vibration source claim 1 , and the isolating conduit is configured to allow a working fluid to pass through.4. The external isolation system of claim 2 , wherein the working fluid port includes a discharge port of the vibration source or a suction port of the vibration source.5. The external isolation system of claim 1 , wherein the vibration source includes a screw compressor.6. The external isolation system of claim 1 , wherein the functional isolating member includes a bellow-like region.7. A method of providing external sound control to a vibration source claim 1 , comprising:reducing vibration transmission between a vibration source and a functional component;reducing vibration transmission between the vibration source and a support structure supporting the vibration source; andreducing sound radiated from the vibration source.8. The method of claim 7 , wherein the reducing ...

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Номер записи: 51
19-05-2016 дата публикации

ON-VEHICLE ELECTRONIC DEVICE AND MOTOR-DRIVEN COMPRESSOR

Номер: US20160141953A1
Автор: Kawasaki Takao, MAEMURA Kenji, Okada Satoshi, SATO SHINYA, Yamada Tetsuya
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

An inverter includes a bus bar as a wiring and a ferrite core that covers the bus bar to absorb electromagnetic noise from the bus bar. The bus bar and ferrite core are integrated by mold forming using a resin material in a state of exposing a part of the ferrite core. 1. An on-vehicle electronic device comprising:wiring; anda ferrite core that covers the wiring to absorb electromagnetic noise from the wiring, whereinthe ferrite core and the wiring are integrated by mold forming using a resin material in a state of exposing a part of the ferrite core.2. The on-vehicle electronic device according to claim 1 , whereinthe resin material has an outer resin portion that covers the ferrite core from outside, andat least one opening portion to expose the ferrite core is formed in the outer resin portion.3. The on-vehicle electronic device according to claim 2 , whereinthe outer resin portion has two base portions and a plurality of pillar-shaped coupling portions that couple the two base portions, andthe two base portions are arranged opposite to each other in an extending direction of a part covered with the ferrite core of the wiring.4. The on-vehicle electronic device according to claim 1 , whereinthe on-vehicle electronic device is an inverter that controls an electric motor provided in a motor-driven compressor mounted on a vehicle.5. The on-vehicle electronic device according to claim 1 , comprising:a substrate mounted with an electronic component; anda case in which the substrate is housed, whereinthe resin material is attached to an inner surface of the case together with the ferrite core, andthe ferrite core is separated from the substrate.6. A motor-driven compressor comprising:a compressing unit that compresses and discharges a refrigerant;an electric motor that drives the compressing unit; andan inverter that controls the electric motor,the inverter comprising:a substrate on which an electronic component is mounted;a case in which the substrate is housed;wiring ...

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Номер записи: 52
11-06-2015 дата публикации

Motor-driven compressor

Номер: US20150159651A1
Автор: Junya Yano, Ken Suitou, Tatsuya Koide, Tsuyoshi Yamaguchi, Yoshiki Nagata
Принадлежит: Toyota Industries Corp

A motor-driven compressor includes an electric motor driven by a motor driver, which includes a switching element that converts DC voltage from a battery to AC voltage. A control unit controls the switching operation of the switching element. A temperature detector detects the temperature of the switching element. A voltage detector detects DC voltage applied to the switching element from the battery. The control unit suspends the switching operation of the switching element when the temperature detected by the temperature detector rises to a predetermined temperature threshold. The control unit also reduces counter electromotive force generated by the electric motor. The temperature threshold includes a first temperature threshold, corresponding to a withstand temperature of the switching element, and a second temperature threshold, which is higher than the first temperature threshold. The control unit switches the temperature threshold between the first and second temperature thresholds.

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Номер записи: 53
23-05-2019 дата публикации

Compressor Having Counterweight

Номер: US20190154037A1
Автор: DOEPKER Roy J.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor may include a compression mechanism, a motor, and a counterweight assembly. The motor assembly is drivingly engaged to the compression mechanism and includes a rotor driving a driveshaft. The rotor drives the driveshaft. The counterweight assembly is mounted axially onto the driveshaft of the motor assembly and has a first laminated stack of plates that includes a plurality of first plates and a plurality of second plates. Each first plate defines a first polygonal-shaped aperture that has a plurality of sides. Each second plate defines a second polygonal-shaped aperture that has a plurality of second sides. The first sides of the first polygonal-shaped apertures are rotationally misaligned with the second sides of the second polygonal-shaped apertures. 1. A compressor comprising:a compression mechanism;a motor assembly drivingly engaged to the compression mechanism, the motor assembly including a rotor and a driveshaft, the rotor driving the driveshaft; anda counterweight assembly mounted axially onto the driveshaft of the motor assembly, the counterweight assembly having a first laminated stack of plates including a plurality of first plates and a plurality of second plates, each first plate defining a first polygonal-shaped aperture having a plurality of first sides, each second plate defining a second polygonal-shaped aperture having a plurality of second sides,wherein the first sides of the first polygonal-shaped apertures are rotationally misaligned with the second sides of the second polygonal-shaped apertures.2. The compressor of claim 1 , wherein the plurality of first and second plates are attached to each other by fasteners.3. The compressor of claim 1 , wherein each of the first plates is disposed directly adjacent to at least one of the second plates.4. The compressor of claim 1 , wherein the counterweight assembly includes a unitary counterweight attached to the first laminated stack of plates.5. The compressor of claim 4 , wherein the ...

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Номер записи: 54
18-06-2015 дата публикации

FLUID VALVE

Номер: US20150167660A1
Автор: Benedict Thomas J., Crolius James Philip
Принадлежит:

A fluid valve is described to help reduce oil sump pressures of a variable speed compressor and a fixed speed compressor working in parallel in a HVAC system. The fluid valve can be a ball valve. Openings of a variable flow through structure of the ball can be configured to elongate along an equator the ball. When the ball rotates along a rotation axis, a size of a variable fluid path formed between the openings can be varied, resulting in a variable pressure drop across the ball. In operation, when the variable speed compressor is operated at different operation speeds, the ball can be rotated to different positions relative to the rotation axis, which may help reduce the pressure differential between the sumps of the variable speed compressor and the fixed speed compressor. 1. A ball valve , comprising:a flow passage; anda ball disposed in the flow passage, wherein the ball includes a variable flow through structure, the variable flow through structure includes a first opening on a surface of the ball, the first opening includes a first end and a second end along an equator of the ball, surface contours connecting the first end and the second end diverge apart along the equator.2. The ball valve of claim 1 , wherein the variable flow through structure of the ball includes a second opening on the surface of the ball claim 1 , the second opening includes a first end and a second end along the equator of the ball claim 1 , surface contours connecting the first end and the second end diverge apart along the equator.3. The ball valve of claim 1 , wherein the first end of the first opening has a shorter arc length than the second end of the second opening.4. The ball valve of claim 2 , wherein the first end of the second opening has a shorter arc length than the second end of the first opening.5. The ball valve of claim 2 , wherein the first end of the second opening is closer to the second end of the first opening than to the first end of the first opening along the ...

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Номер записи: 55
29-09-2022 дата публикации

Electric compressor

Номер: US20220307506A1
Автор: Noritaka Nishimori, Suehiro Fukazawa, Takayuki Kato, Toshiyuki Kobayashi, Toshiyuki Miyano
Принадлежит: Toyota Industries Corp

An electric compressor includes a compression portion, an electric motor, an inverter, a housing, a support bracket, a vibration insulator, and a soundproofing cover. The compression portion is configured to compress a fluid. The electric motor is configured to drive the compression portion. The inverter is configured to drive the electric motor. The housing includes an outer peripheral surface that has a cylindrical shape and accommodates the compression portion, the electric motor, and the inverter. The support bracket is fastened to the housing and supports the housing to an object to which the electric compressor is mounted. The vibration insulator is interposed between the support bracket and the object. The soundproofing cover is made of an elastically deformable sound absorbing material and covers the housing and the support bracket.

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Номер записи: 56
11-09-2014 дата публикации

SCROLL COMPRESSOR

Номер: US20140255231A1
Автор: KII Norimichi
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

A scroll compressor comprises a housing, a cylindrical rotating shaft, a fixed scroll, a movable scroll, and a drive mechanism. The drive mechanism includes an eccentric pin, and a balancer-integrated bush. The eccentric pin extends in parallel with the rotating shaft from the end part of the rotating shaft. The balancer-integrated bush is disposed between the eccentric pin and the movable scroll, includes an eccentric hole into which the eccentric pin is inserted, and configured to rotate around the eccentric pin, and further includes a balancer in an integrated manner, and is configured to rotatably move relative to the rotating shaft. An elastic member is disposed between the balancer-integrated bush and at least one of the rotating shaft and the eccentric pin, and the elastic member regulates the relatively movable range of the rotating shaft and the balancer-integrated bush.

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Номер записи: 57
18-09-2014 дата публикации

SCROLL COMPRESSOR HAVING A SCROLL SUPPORTER AND/OR MOVEMENT LIMITER

Номер: US20140271307A1
Автор: Jang Sihyun, Jin Honggyun, LEE Munyoung
Принадлежит:

A scroll compressor having a scroll supporter and/or movement limiter is provided. The scroll compressor may include a casing, a main frame fixedly installed within the casing, a first scroll rotatably supported by the main frame, a second scroll supported by the main frame, such that the second scroll is movable in a vertical direction with respect to the first scroll, a guide that guides movement of the second scroll in the vertical direction, while preventing the second scroll from being rotated in an axial direction; and a movement limiter disposed on an inner wall of the casing and separated from the second scroll, the movement limiter being configured to limit a movement distance of the second scroll in an upward direction. 1. A scroll compressor , comprising:a casing;a main frame fixedly installed within the casing;a first scroll rotatably supported by the main frame;a second scroll supported by the main frame, such that the second scroll is movable in a vertical direction with respect to the first scroll;a guide that guides movement of the second scroll in the vertical direction, while preventing the second scroll from being rotated in an axial direction; anda movement limiter disposed on an inner wall of the casing and separated from the second scroll, the movement limiter being configured to limit a movement distance of the second scroll in an upward direction.2. The scroll compressor of claim 1 , wherein the guide is not fixed to the first scroll.3. The scroll compressor of claim 1 , further comprising a discharge cover disposed within the casing above the second scroll claim 1 , the discharge cover dividing an interior of the casing into a suction space and a discharge space claim 1 , wherein the movement limiter extends along an inner wall surface of the casing from a lower surface of the discharge cover.4. The scroll compressor of claim 1 , wherein the movement limiter has an annular shape and is fixed to an inner wall surface of the casing.5. The ...

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Номер записи: 58
09-07-2015 дата публикации

ELECTRIC COMPRESSOR

Номер: US20150192126A1
Автор: Fukutani Yoshikazu, NAGANO Hiroki, SUITOU Ken
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

There is provided an electric compressor includes a compression mechanism, an electric motor, a motor housing having an injection port that communicates with one of compression chambers that is in the middle of the compression, a discharge housing having a discharge chamber into which compressed refrigerant is discharge, and an intermediate pressure housing disposed between the motor housing and the discharge housing. The intermediate pressure housing has an introduction port for introducing intermediate pressure refrigerant from an external refrigerant circuit and a communication passage between the introduction port and the injection port of the motor housing. The introduction port and the communication passage cooperate with the injection port to allow the intermediate pressure refrigerant to be injected into the compression chamber. The communication passage has in the middle thereof a muffler chamber. A partition member separates the muffler chamber and the discharge chamber. 1. An electric compressor comprising:a compression mechanism having a plurality of compression chambers;an electric motor driving the compression mechanism to draw refrigerant into the compression chambers and compress the refrigerant in the compression chambers;a motor housing accommodating the electric motor and the compression mechanism, the motor housing having an injection port that communicates with one of the compression chambers, the compression chamber being in the middle of the compression;a discharge housing having a discharge chamber into which the compressed refrigerant is discharge; andan intermediate pressure housing disposed between the motor housing and the discharge housing, the intermediate pressure housing having an introduction port for introducing intermediate pressure refrigerant from an external refrigerant circuit and a communication passage that provides communication between the introduction port and the injection port of the motor housing, wherein the ...

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Номер записи: 59
09-07-2015 дата публикации

ROTARY COMPRESSOR, METHOD OF MANUFACTURING A ROTARY COMPRESSOR, AND APPARATUS FOR MANUFACTURING A ROTARY COMPRESSOR

Номер: US20150192129A1
Автор: HA Jonghun, LEE Seungmock, SON Youngboo
Принадлежит:

A rotary compressor, a method of manufacturing a rotary compressor, and an apparatus for manufacturing a rotary compressor are provided. The rotary compressor may include a case having an inner space, a stator to which power may be applied, the stator being disposed in the case, and a compression mechanism disposed on or at one side of the stator to generate a compression force of a refrigerant. The compression mechanism may include a rotational shaft, a cylinder that accommodates a roller coupled to the rotational shaft, a main bearing coupled a first side of the cylinder, and a sub bearing coupled to a second side of the cylinder. The main bearing may be press-fitted and fixed to an inner surface of the case. 1. A rotary compressor , comprising:a case having an inner space;a stator to which power is applied, the stator being disposed in the case; and a rotational shaft;', 'a cylinder that accommodates a roller coupled to the rotational shaft;', 'a main bearing coupled to a first side of the cylinder; and', 'a sub bearing coupled to a second side of the cylinder, wherein the main bearing is press-fitted and fixed to an inner circumferential surface of the case., 'a compression mechanism disposed adjacent the stator to generate a compression force of a refrigerant, wherein the compression mechanism comprises2. The rotary compressor according to claim 1 , wherein the main bearing comprises:a bearing body having a shaft through hole through which the rotational shaft passes; andat least one press-fit portion that defines at least a first portion of an outer circumferential surface of the main bearing, the at least one press-fit portion being press-fitted to the inner circumferential surface of the case.3. The rotary compressor according to claim 2 , wherein the at least one press-fit portion is inserted into an inner space of the case in a state in which the case is heated.4. The rotary compressor according to claim 2 , wherein the main bearing further comprises at ...

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Номер записи: 60
16-07-2015 дата публикации

COMPRESSOR

Номер: US20150198159A1
Автор: MATSUDA Kunihisa, YAMASHITA Takuro, Yamazaki Jun
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

A compressor includes a discharge housing member, which includes a discharge chamber and an oil separation chamber. The discharge housing member includes a cylindrical wall defining the discharge chamber and the oil separation chamber. The discharge chamber includes a partition that is continuous with and protrudes from the cylindrical wall. The cylindrical wall extends from an upper section of the discharge chamber toward a lower section of the discharge chamber. The cylindrical wall includes a communication hole connecting the discharge chamber to the oil separation chamber. The partition extends from the upper section of the discharge chamber toward the lower section of the discharge chamber and defines a first space and a second space in the discharge chamber. The first space and the second space are connected to each other at least at the lower section of the discharge chamber through a clearance between the partition and the circumferential wall. 1. A compressor , comprising:a compression chamber;a discharge port connected to the compression chamber;a cylindrical discharge housing member including a bottom wall and a circumferential wall;a discharge chamber that is formed in the discharge housing member to receive refrigerant gas compressed in the compression chamber and discharged via the discharge port;an oil separation chamber formed in the discharge housing member, wherein the oil separation chamber accommodates an oil separation tube that separates lubricant contained in the refrigerant gas discharged to the discharge chamber from the refrigerant gas;a cylindrical wall formed on the bottom wall of the discharge housing member, and the cylindrical wall defines the discharge chamber and the oil separation chamber; anda partition provided in the discharge chamber, and the partition is continuous with and protruding from the cylindrical wall, whereinthe cylindrical wall bulges into the discharge chamber and extends from an upper section of the discharge ...

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Номер записи: 61
16-07-2015 дата публикации

METHOD FOR OPTIMIZING THE CONTROL OF AN ELECTRIC DRIVE

Номер: US20150198160A1
Автор: Lenz Herr Mario, Poschenrieder Herr Uwe
Принадлежит:

A method for optimizing the regulation of an electric drive for machinery with specific torque behavior which periodically fluctuates significantly between extreme values specific to working points includes the step of implementing a characteristic field. A drive motor is provided for the electric drive with a permanent magnet rotor and a stator with a stator winding. The stator winding is energized with a three-phase alternating current across an inverter. Changes in the number of revolutions of the drive motor and the angle error are minimized by a correction of this phase current and a correction of the angular velocity. The characteristic field for the torque variation which is specific to the machine is implemented in the regulation algorithm of the inverter. 1. A method for optimizing a regulation of an electric drive comprising the steps of:providing a drive motor for a machine with a specific torque variation, the drive motor having a permanent magnet rotor and a stator having a stator winding;energizing the stator winding with a three-phase alternating current output by an inverter to actuate the drive motor, the inverter including a regulation algorithm configured to minimize a change in a number of revolutions of the drive motor and an angle error of the drive motor; creating a model of a variation of an operating load of the machine in the regulation algorithm to calculate a torque variation of the drive motor;', 'creating a torque variation matrix with the model of the variation of the operating load in the regulation algorithm, the torque variation matrix including a plurality of torque curves of the drive motor resulting from an operating range of the machine driven by the electric motor;', 'calculating at least one mechanical variable from the torque variation matrix with the regulation algorithm;', 'deriving the characteristic field from the at least one mechanical variable from the torque variation matrix with the regulation algorithm; and', ' ...

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Номер записи: 62
05-07-2018 дата публикации

DRIVE DEVICE FOR ELECTRIC COMPRESSOR

Номер: US20180187681A1
Автор: SAKAI Koji
Принадлежит: Denso Corporation

A drive device of a compressor, including an inverter circuit formed of a plurality of switching elements, a drive unit that switches the switching elements, a determination unit that, when the compression mechanism restarts, determines whether a pressure difference of the compression mechanism is equal to or above a predetermined value, a restart unit that sets a number of times that the switching elements are switched per unit time during an initial predetermined period when the compression mechanism begins to restart and controls the drive unit, where the restart unit sets the number of times that the switching elements are switched per unit time to be lower when the determination unit determines that the pressure difference is equal to or above the threshold as compared to when the determination unit determines that the pressure difference is less than the threshold. 1. A drive device of an electric compressor that drives a compression mechanism to compress a fluid due to a rotation force of a rotor which is rotated by a rotating magnetic field generated from a stator coil of a synchronous motor , the drive device comprising:an inverter circuit formed of a plurality of switching elements;a drive unit that switches the plurality of switching elements to flow an alternating current from the inverter circuit to the stator coil based on a direct current voltage output from a direct current power source to generate the rotating magnetic field from the stator coil;a determination unit that, when the compression mechanism restarts after a stoppage of the compression mechanism, determines whether a pressure difference between a fluid intake side and a fluid discharge side of the compression mechanism is equal to or above a predetermined value; and sets a number of times that the switching elements are switched per unit time during an initial predetermined period when the compression mechanism begins to restart, and', 'controls the drive unit such that an alternating ...

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Номер записи: 63
23-07-2015 дата публикации

ELECTRIC COMPRESSOR AND METHOD FOR MANUFACTURING SAME

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

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

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Номер записи: 64
22-07-2021 дата публикации

COMPRESSOR SYSTEM WITH MULTIPLE COMPRESSOR ELEMENTS

Номер: US20210222929A1
Автор: Fonte Nicolas, Herry Hugo
Принадлежит:

Compressor systems for compression of refrigerant fluid are described. The compressor systems include first and second compressor elements each having a housing. An equalization line fluidly connects the first and second housings at suction sides in order to allow for equalization of pressure between the housings as well as flow of lubricant between the housings. An equalization valve on the equalization line is used to open and close the connection between the first and second compressor element housings. The compressor system is arranged for full load operation using both the first and second compressor elements as well as for part load operation in which one of the compressor elements is not utilized. The equalization valve is opened during full load operation and is closed during part load operation to thereby prevent movement of lubricant and/or refrigerant fluid between the first and second compressor element housings during part load operation. 1. A compressor system for compression of refrigerant fluid , the compressor system comprising:a first compressor element for compression of the refrigerant fluid, the first compressor element being within a first compressor element housing;a second compressor element for compression of the refrigerant fluid, the second compressor element being within a second compressor element housing;an equalization line that fluidly connects the first and second compressor element housings at the suction side in order to allow for equalization of pressure between the first and second compressor element housings as well as flow of lubricant between the compressor element housings; andan equalization valve on the equalization line for opening and closing the connection between the first and second compressor element housings via the equalization line;wherein the compressor system is arranged for full load operation using both the first and second compressor elements as well as for part load operation in which one of the compressor ...

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Номер записи: 65
27-06-2019 дата публикации

ROTARY COMPRESSOR

Номер: US20190195228A1
Автор: LEE Seungmock
Принадлежит: LG ELECTRONICS INC.

A rotary compressor includes: a shell forming an internal space; a driving motor disposed in the internal space of the shell; a rotary shaft connected to the driving motor; a lower cylinder having a lower chamber for compressing a refrigerant and a lower roller disposed inside the lower chamber; an upper cylinder disposed on an upper side of the lower cylinder and having an upper chamber for compressing a refrigerant and an upper roller disposed inside the upper chamber; a muffler disposed on the upper side of the upper cylinder and receiving a refrigerant compressed in the upper chamber; and an intermediate plate disposed between the upper cylinder and the lower cylinder and having a rotary shaft hole through which the rotary shaft is disposed. The intermediate plate includes an opening formed around the rotary shaft hole and guiding a refrigerant compressed in the lower chamber to the muffler. 1. A rotary compressor comprising:a shell forming an internal space;a driving motor disposed in the internal space of the shell;a rotary shaft connected to the driving motor;a lower cylinder having a lower chamber for compressing a refrigerant and a lower roller disposed inside the lower chamber;an upper cylinder disposed on an upper side of the lower cylinder and having an upper chamber for compressing a refrigerant and an upper roller disposed inside the upper chamber;a muffler disposed on an upper side of the upper cylinder and receiving a refrigerant compressed in the upper chamber; andan intermediate plate disposed between the upper cylinder and the lower cylinder and having a rotary shaft hole through which the rotary shaft is disposed,wherein the intermediate plate includes an opening formed around the rotary shaft hole and guiding a refrigerant compressed in the lower chamber to the muffler.2. The rotary compressor of claim 1 , wherein the intermediate plate includes:a first opening receiving a refrigerant compressed in the lower chamber and discharged from a lower ...

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Номер записи: 66
19-07-2018 дата публикации

ELECTRIC COMPRESSOR CONTROLLER AND REFRIGERATION CYCLE DEVICE

Номер: US20180202442A1
Автор: Imura Akihiro, Nakamoto Shinji, SAKAI Koji, YAMANAKA Akitomo
Принадлежит:

A controller that controls an electric compressor, which is mounted to a vehicle and configures a two-stage compression refrigeration cycle device, has a deceleration section, an operation stop section, and a restart section. The deceleration section reduces a rotational speed of an electric motor by controlling an AC current which is output to the electric motor, when a two-stage compression mode, in which an intermediate-pressure refrigerant flows into the electric compressor from an intermediate-pressure port, is performed and an operation stop request to stop the electric compressor is made. The operation stop section stops the electric motor after the deceleration section reduces the rotational speed of the electric motor. The restart section restarts the electric compressor when the operation stop request is canceled after the operation stop section stops the electric compressor. 1. An electric compressor controller that controls an electric compressor mounted to a vehicle and configuring a two-stage compression refrigeration cycle device ,the electric compressor that has a compression mechanism, an electric motor, a suction port, a discharge port, and an intermediate-pressure port, the compression mechanism that is configured to compress a refrigerant and is operated by the electric motor, the electric compressor that is configured to draw a low-pressure refrigerant from the suction port, compress the low-pressure refrigerant in the compression mechanism to be a high-pressure refrigerant, and discharge the high-pressure refrigerant from the discharge port, the electric compressor that is configured to draw an intermediate-pressure refrigerant, which has an intermediate pressure between a pressure of the low-pressure refrigerant and a pressure of the high-pressure refrigerant, from the intermediate pressure port to join a refrigerant being compressed in the compression mechanism,the electric motor that is an AC motor using an AC current,the electric compressor ...

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Номер записи: 67
06-08-2015 дата публикации

SCROLL COMPRESSOR WITH CAPTURED THRUST WASHER

Номер: US20150219100A1
Автор: Duppert Ronald J., Heusler Kenneth D.
Принадлежит: Bitzer Kuehlmaschinenbau GmbH

A load transmittal apparatus transfers an axial load to a thrust surface during operation of a scroll compressor. 1. A scroll compressor including a load transfer apparatus , the compressor including a rotating shaft and a stationary lower bearing member , the load transfer apparatus comprising:a central cylindrical hub defined by the stationary lower bearing member, wherein the central hub defines an opening;a cylindrical bearing configured to seat in the opening, with the cylindrical bearing further configured to receive one end of the shaft; anda thrust washer disposed in the opening of the central hub and captured axially within the lower bearing member by the cylindrical bearing, wherein an axial load along the centerline of the shaft transmits to the stationary lower bearing member through the thrust washer.2. The scroll compressor including a load transfer apparatus of claim 1 , wherein the thrust washer is fixed axially and rotationally in the opening without a fastener or an adhesive.3. The scroll compressor including a load transfer apparatus of claim 1 , wherein the thrust washer includes a smooth circumference.4. The scroll compressor including a load transfer apparatus of claim 1 , wherein the thrust washer is metal.5. The scroll compressor including a load transfer apparatus of claim 1 , wherein the cylindrical bearing is composed of a matrix of metal and a polymeric layer.6. The scroll compressor including a load transfer apparatus of claim 5 , wherein the cylindrical bearing is lubricated by oil transferring through an orifice defined in the shaft.7. The scroll compressor including a load transfer apparatus of claim 1 , further comprising:scroll compressor bodies disposed in a housing, the scroll bodies including a first scroll body and a second scroll body, the first and second scroll bodies having respective bases and respective scroll ribs that project from the respective bases, wherein the scroll ribs mutually engage, the second scroll body being ...

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Номер записи: 68
27-07-2017 дата публикации

Oil distribution in multiple-compressor systems utilizing variable speed

Номер: US20170211855A1
Автор: Bruce A. Fraser, Terry Nares
Принадлежит: Bitzer Kuehlmaschinenbau GmbH and Co KG

A method of operating a multiple-compressor refrigeration system is provided. This method includes the steps of supplying, via a common supply line, refrigerant gas and oil to a plurality of compressors coupled in series, and attaching an oil flow conduit between adjacent compressors of the plurality of compressors. The oil flow conduit is configured to move oil from a compressor with a relatively higher pressure to a compressor with a relatively lower pressure. The method further includes controlling the pressure for each of the plurality of compressors by regulating a speed at which each of the plurality of compressors operates in order to maintain a pressure differential between the adjacent compressors to facilitate the flow of oil from the compressor with the relatively higher pressure to the compressor with the relatively lower pressure.

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Номер записи: 69
27-07-2017 дата публикации

COMPRESSOR HAVING WASTE HEAT RECOVERY WITH GAS RECYCLER

Номер: US20170211891A1
Автор: Collins James C.
Принадлежит:

A compressor and waste heat recovery system is disclosed in which mechanical work from a prime mover along with work generated from the waste heat recovery system are used to operate the compressor. A gas producing system is heated by waste heat from operation of the compressor to produce a stream of gas used to drive a turbine. The turbine is in work communication with the compressor. In one embodiment the gas producing system is a metal hydride. An overrunning clutch can be used with the turbine. In one form multiple gas producing systems are used, one of which to emit gas while the other is used to receive and capture the emitted gas. 1. An apparatus comprising:a compressor system having a motor structured to provide work to a rotary compressor element that is structured to compress a fluid and thereby increase the pressure of the fluid at the same time that it produces heat, the compressor system including a heat rejecting component in thermal communication with the rotary compressor element; anda waste heat recovery system having a flowpath for the conveyance of a gas and a mechanical expander disposed in the flowpath to extract work from the conveyance of the gas and communicate the work to the rotary compressor element, the waste heat recovery system also having a chemical based gas storage device in thermal communication with the heat rejecting component of the compressor system, the chemical based gas storage device structured to desorb the gas at an activation energy level and capture the gas below the activation energy level through a sorption process, the gas being a different substance than a material of the chemical based gas storage device.2. The apparatus of claim 1 , wherein the chemical based gas storage device is a metal hydride.3. The apparatus of claim 2 , wherein the metal hydride is in one of a powder form claim 2 , pellet form claim 2 , film form claim 2 , or a coating form.4. The apparatus of claim 2 , which further includes a clutch ...

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Номер записи: 70
05-08-2021 дата публикации

FLUID EQUALISATION FOR MULTIPLE COMPRESSORS

Номер: US20210239119A1
Автор: Alquier Yvan, Fonte Nicolas
Принадлежит:

A method of manufacturing a suction pipe for a multi-compressor device having a plurality of inlets, the suction pipe comprising a primary portion and a plurality of secondary portions arranged to receive fluid from the primary portion for supplying fluid in parallel to the inlets of a multi-compressor device. The method includes designing the suction pipe by: selecting a first dimension for the primary portion of the suction pipe, calculating a first fluid velocity for fluid in the primary portion based on the first dimension, and comparing the first fluid velocity to a first predetermined threshold; selecting a second dimension for the secondary portions, calculating a second fluid velocity for fluid in the secondary portions based on the second dimension, and comparing the second fluid velocity to a second predetermined threshold; and calculating a ratio of the first fluid velocity to the second fluid velocity. 1100110120110100. A method of manufacturing a suction pipe () for a multi-compressor device having a plurality of inlets , the suction pipe comprising a primary portion () and a plurality of secondary portions () arranged to receive fluid from the primary portion () for supplying fluid in parallel to the inlets of a multi-compressor device; the method comprising designing the suction pipe () by:{'b': 110', '100', '110, 'selecting a first dimension for the primary portion () of the suction pipe (), calculating a first fluid velocity for fluid in the primary portion () based on the first dimension, and comparing the first fluid velocity to a first predetermined threshold;'}{'b': 120', '120, 'selecting a second dimension for the secondary portions (), calculating a second fluid velocity for fluid in the secondary portions () based on the second dimension, and comparing the second fluid velocity to a second predetermined threshold; and'}calculating a ratio of the first fluid velocity to the second fluid velocity;the method further comprising:{'b': '100', ' ...

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Номер записи: 71
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: 72
30-10-2014 дата публикации

Scroll Vacuum Pump and Method of Maintenance Including Replacing a Tip Seal of a Scroll Vacuum Pump

Номер: US20140322055A1
Автор: John Calhoun
Принадлежит: AGILENT TECHNOLOGIES INC

A scroll pump has a tip seal between an axial end of the scroll blade of one of stationary and orbiting plate scrolls of the pump and the plate of the other of the stationary plate and orbiting plate scrolls. The scroll pump may have a ballast gas supply system and use the operation of the ballast gas supply system to assess the condition of the tip seal. Alternatively, the scroll pump may have two pressure sensors that sense pressure at two locations spaced along a compression mechanism of the pump to assess the condition of the tip seal.

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Номер записи: 73
30-10-2014 дата публикации

VACUUM PUMP HAVING EXPANSION CHAMBER AND METHOD OF ACHIEVING ULTIMATE PRESSURE STATE IN A VACUUM PUMP USING AN EXPANSION CHAMBER

Номер: US20140322056A1
Автор: GIBSON Scott V.
Принадлежит: AGILENT TECHNOLOGIES, INC.

A vacuum pump and a method of controlling the operation of the vacuum pump employ an expansion chamber to reduce a pressure differential between an inlet side and an exhaust side of the pump. In particular, the expansion chamber may be used to rid the pump head of the pump of a pocket of relatively high pressure fluid that accumulates behind a poppet valve disposed over an exhaust opening. The pump itself may be used to create a level of vacuum pressure in the expansion chamber. Alternatively, a piston or diaphragm may be used. In either case, the expansion chamber is isolated from the ambient and interior of the pump head once a level of vacuum pressure is produced in the expansion chamber. Then the exhaust outlet is redirected from the ambient to the interior of the expansion chamber. 1. A vacuum pump comprising:an inlet portion having a pump inlet and constituting a vacuum side of the pump where fluid is drawn into the pump, and an exhaust portion having a pump outlet and constituting a compression side where fluid is discharged under pressure from the pump;a pump head having an inlet opening to which the pump inlet extends, an exhaust opening leading to the pump outlet, and a compression mechanism constituted by at least one pocket;a poppet valve having a valve head seated over the exhaust opening of the pump head;an expansion chamber disposed outside the pump head, the expansion chamber having chamber walls delimiting an interior space;vacuum pressure control means for selectively producing a vacuum in the expansion chamber; andfluid directional flow control means for selectively placing the pump in a first state in which the exhaust opening of the pump head is in open communication with the interior space of the expansion chamber while the exhaust opening and the interior space of the expansion chamber are each closed to the pump outlet and a second state in which the exhaust opening of the pump head is in open communication with the pump outlet while the ...

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Номер записи: 74
23-07-2020 дата публикации

MOTOR-OPERATED COMPRESSOR

Номер: US20200232459A1
Автор: GWON Ochang, KIM Jehoon, KIM Taekyoung, YIM Woogyong
Принадлежит: LG ELECTRONICS INC.

According to one embodiment, there is provided a motor-operated compressor comprising a rotation shaft, a first scroll configured to perform an orbiting motion and comprising an eccentric coupling portion eccentrically coupled to the rotation shaft, a second scroll coupled to the first scroll to form a pair of compression chambers, a rotor coupled to the rotation shaft, a stator forming an accommodation space configured to accommodate the rotor, and an eccentricity compensation portion configured to compensate for an eccentric displacement of a center of gravity of the rotation shaft, in response to the orbiting motion of the first scroll. The eccentricity compensation portion comprises a first member positioned on one end of the stator and a second member positioned on the rotor adjacent to the first member. 1. A motor-operated compressor , comprising:a rotation shaft;a first scroll configured to perform an orbiting motion and comprising an eccentric coupling portion eccentrically coupled to the rotation shaft;a second scroll coupled to the first scroll to form a pair of compression chambers;a stator forming an accommodation space;a rotor coupled to the rotation shaft and disposed in the accommodation space, wherein the stator is configured to rotate the rotor by a magnetic interaction with the rotor; andan eccentricity compensation portion configured to compensate for an eccentric displacement of a center of gravity of the rotation shaft, in response to the orbiting motion of the first scroll, a first member positioned on one end of the stator; and', 'a second member positioned on the rotor adjacent to the first member., 'wherein the eccentricity compensation portion comprises2. The motor-operated compressor of claim 1 , wherein the first member extends along a circumferential direction of the stator claim 1 , andwherein the second member has a magnetic property and is positioned at a position opposite to the eccentric coupling portion relative to a center of the ...

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Номер записи: 75
01-09-2016 дата публикации

Compressor Assembly With Liquid Sensor

Номер: US20160252092A1
Автор: Kulkarni Sunil S., VAN HOOSE RONALD L.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor may include a shell, a compression mechanism, first and second temperature sensors, and a control module. The shell may define a lubricant sump. The compression mechanism may be disposed within the shell and may be operable to compress a working fluid. The first temperature sensor may be at least partially disposed within the shell at a first position. The second temperature sensor may be at least partially disposed within the shell at a second position that is vertically higher than the first position. The control module may be in communication with the first and second temperature sensors and the pressure sensor and may determine whether a liquid level in the lubricant sump is below a predetermined level based on data received from the first and second temperature sensors. 1. A compressor comprising:a shell defining a chamber;a compression mechanism disposed within the chamber and operable to compress a working fluid; anda sensor assembly including a first sensor, a second sensor, and a sensor housing, the first and second sensors are disposed at least partially inside of the chamber and are supported by the sensor housing, the sensor housing is mounted to the shell and is at least partially disposed outside of the shell.2. The compressor of claim 1 , wherein the sensor housing includes a hub claim 1 , a conduit claim 1 , a first casing and a second casing claim 1 , the hub sealingly engaging the shell claim 1 , the conduit extending radially inward into the compressor from the hub and receiving wires connected to the first and second sensors claim 1 , the first casing extending axially upward from the conduit and receiving one of the first and second sensors claim 1 , the second casing extending axially downward from the conduit and receiving the other of the first and second sensors.3. The compressor of claim 2 , wherein the first and second casings are axially misaligned with each other.4. The compressor of claim 3 , wherein the first casing ...

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Номер записи: 76
20-11-2014 дата публикации

Centrifugal refrigerant vapour compressors

Номер: US20140341710A1
Автор: Michael Creamer
Принадлежит: VENUS SYSTEMS Ltd

A refrigerant compressor ( 10 ) for use in a chiller-heater system that can provide chilled water at less than 10° C. and hot water at more than 80° C. without the need for additional heat input, the compressor ( 10 ) being configured to provide a compression ratio of at least 18:1 and a temperature lift across the compressor of at least 80K, and the refrigerant fluid being selected to give the desired temperature lift without the pressure at the compressor outlet exceeding 25 bar.

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Номер записи: 77
27-11-2014 дата публикации

SCROLL-TYPE COMPRESSOR AND CO2 VEHICLE AIR CONDITIONING SYSTEM HAVING A SCROLL-TYPE COMPRESSOR

Номер: US20140348681A1
Автор: Busch Christian, Obrist Frank, Obrist Oliver, Schmaelzle Christian
Принадлежит: Obrist Engineering GmbH

A scroll-type compressor for a COvehicle air conditioning system, having a movable displacement spiral which is rotatably connected to an eccentric bearing and which engages into a counterpart spiral such that, between the windings of the displacement spiral and of the counterpart spiral, there are formed chambers which travel radially inward in order to compress the refrigerant and discharge the refrigerant into a pressure chamber, wherein the displacement spiral is arranged on the suction side and the counterpart spiral is arranged on the high-pressure side. The scroll-type compressor is wherein the eccentric bearing is arranged in the displacement chamber between the displacement spiral and the counterpart spiral and has a bearing bushing which is formed integrally with the displacement spiral and the base of which is in alignment with the face side of the windings of the displacement spiral. 1. A scroll-type compressor for a COvehicle air conditioning system , having a movable displacement spiral which is rotatably connected to an eccentric bearing and which engages into a counterpart spiral such that , between the windings of the displacement spiral and of the counterpart spiral , there are formed chambers which travel radially inward in order to compress the refrigerant and discharge said refrigerant into a pressure chamber , wherein the displacement spiral is arranged on the suction side and the counterpart spiral is arranged on the high-pressure side , wherein the eccentric bearing is arranged in the displacement chamber between the displacement spiral and the counterpart spiral and has a bearing bushing which is formed integrally with the displacement spiral and the base of which is in alignment with the face side of the windings of the displacement spiral.2. The scroll-type compressor as claimed in claim 1 , wherein the displacement spiral has a central recess in which there is at least partially accommodated a counterweight which is connected to the ...

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Номер записи: 78
27-11-2014 дата публикации

SCROLL-TYPE COMPRESSOR AND CO2 VEHICLE AIR CONDITIONING SYSTEM HAVING A SCROLL-TYPE COMPRESSOR

Номер: US20140348682A1
Автор: Busch Christian, Obrist Frank, Obrist Oliver, Schmaelzle Christian
Принадлежит: Obrist Engineering GmbH

A scroll-type compressor for a COvehicle air conditioning system, having a mechanical drive which is connected by a drive shaft to an eccentric bearing. A movable displacement spiral is rotatably connected to the eccentric bearing and engages into a counterpart spiral such that, between the displacement spiral and the counterpart spiral, radially inwardly traveling chambers are formed in order to compress the refrigerant and discharge it into a pressure chamber. Wherein the counterpart spiral is movable in alternating fashion relative to the displacement spiral in an axial direction, wherein, between the counterpart spiral and the displacement spiral, there is arranged at least one spring for exerting an axial release force on the counterpart spiral, and at least one piston engages on the counterpart spiral, in order to exert an axial closing force on the latter, adjacent to the pressure chamber in an off-center position. 114. A scroll-type compressor for a COvehicle air conditioning system , having a drive which is connected by means of a drive shaft to an eccentric bearing , and having a movable displacement spiral which is rotatably connected to the eccentric bearing and which engages into a counterpart spiral such that , between the displacement spiral and the counterpart spiral , radially inwardly traveling chambers are formed in order to compress the refrigerant and discharge it into a pressure chamber , wherein the drive is a mechanical drive or an electric drive with a fixed rotational speed , and the counterpart spiral is movable in alternating fashion relative to the displacement spiral in an axial direction , wherein , between the counterpart spiral and the displacement spiral , there is arranged at least one spring for exerting an axial release force on the counterpart spiral , and at least one piston engages on the counterpart spiral () , in order to exert an axial closing force on the latter , adjacent to the pressure chamber.2. The scroll-type ...

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Номер записи: 79
14-10-2021 дата публикации

STATOR, MOTOR, COMPRESSOR, AIR CONDITIONER, AND MANUFACTURING METHOD OF STATOR

Номер: US20210320546A1
Автор: ARAI Toshio, MATSUOKA Atsushi, Yabe Koji
Принадлежит:

A stator includes a stator core having a plurality of slots in a circumferential direction about an axis and having an end surface in a direction of the axis, and a first coil and a second coil of different phases which are wound on the stator core in distributed winding. A winding factor is 1. Each of the first coil and the second coil has winding portions, the number of which corresponds to the number of poles. The winding portions include first and second winding portions adjacent to each other in the circumferential direction. The first and second winding portions are inserted into one slot of the plurality of slots and extend from the one slot to both sides in the circumferential direction on the end surface. The first and second coils are annularly disposed in different positions in a radial direction about the axis on the end surface. 1. A stator comprising:a stator core having a plurality of slots in a circumferential direction about an axis, the stator core having an end surface in a direction of the axis; anda first coil and a second coil each wound on the stator core in distributed winding, the first coil and the second coil being of different phases,wherein a winding factor is 1;wherein each of the first coil and the second coil has winding portions, the number of which corresponds to the number of poles;wherein the winding portions, the number of which corresponds to the number of poles, include a first winding portion and a second winding portion that are adjacent to each other in the circumferential direction;wherein the first winding portion and the second winding portion are inserted into one slot of the plurality of slots and extend from the one slot to both sides in the circumferential direction on the end surface;wherein the first coil and the second coil are annularly disposed in different positions in a radial direction about the axis on the end surface of the stator core; andwherein the first winding portion is disposed on an outer side in the ...

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Номер записи: 80
04-12-2014 дата публикации

AN OIL-FREE SCROLL FLUID MACHINE

Номер: US20140356207A1
Автор: Yang Guangyan
Принадлежит: Geowell Vacuum Co., Ltd.

An oil-free scroll fluid machine includes an inner casing used as or not as a fixed scroll, and an outer casing used as a fixed scroll. The inner casing is butted with the outer casing to form a seal chamber. An orbiting scroll, which is installed on an eccentric part of an eccentric spindle through a group of bearings, is arranged in the seal chamber. The orbiting scroll is driven by the eccentric spindle and restricted by orbiting scroll anti-rotation crank pins to make a planar revolution in the seal chamber. The orbiting scroll is meshed with the fixed scroll to form several crescent compressed and sealed gas chambers with gradually reduced volumes from an outer edge to a center thereof, and therefore gas is sucked in from a gas inlet on the outer edge and exhausted through an exhaust port of the machine. 1. An oil-free scroll fluid machine , comprising a machine frame , an inner casing fixed on the machine frame , and an outer casing , the inner casing being provided with a gas inlet and an exhaust port on an outer edge thereof and used as an inner fixed scroll , and the outer casing being used as an outer fixed scroll , wherein the machine is a double-sided oil-free scroll fluid machine , said inner fixed scroll is butted with the outer fixed scroll to form a seal chamber , an orbiting scroll which is installed on an eccentric part of an eccentric spindle through a group of bearings is arranged in the seal chamber , a fan wheel and a coupling fan wheel are respectively arranged on both ends of the eccentric spindle , the eccentric spindle is connected with a drive motor through a coupling and is eccentrically driven by the drive motor , the orbiting scroll is driven by the eccentric spindle and restricted by orbiting scroll anti-rotation crank pins to make a planar revolution in the seal chamber , the orbiting scroll is also meshed with the inner and outer fixed scrolls respectively to form a series of crescent sealed gas chambers , contacting lines move ...

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Номер записи: 81
04-12-2014 дата публикации

VARIABLE SPEED SCROLL COMPRESSOR

Номер: US20140356209A1
Автор: IGNATIEV Kirill M., PEREVOZCHIKOV Michael M.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor is provided and may include a driveshaft and an orbiting scroll member driven by the driveshaft. The orbiting scroll member may include an end plate, a spiral wrap extending from the end plate, and a chamber formed by the orbiting scroll member and disposed on an opposite side of the end plate than the spiral wrap. A counterweight may be fixed for rotation with the driveshaft and may be received within the chamber of the orbiting scroll member. 1. A compressor comprising:a driveshaft;an orbiting scroll member driven by said driveshaft and including an end plate, a spiral wrap extending from said end plate, and a chamber formed by said orbiting scroll member and disposed on an opposite side of said end plate than said spiral wrap; anda counterweight fixed for rotation with said driveshaft and received within said chamber of said orbiting scroll member.2. The compressor of claim 1 , wherein said orbiting scroll member includes a first member and a second member that cooperate to form said chamber claim 1 , said first member and said second member being separate components.3. The compressor of claim 2 , wherein said first member includes said end plate and said spiral wrap and said second member defines a hub portion.4. The compressor of claim 3 , further comprising a bushing disposed between said hub portion and said driveshaft claim 3 , said counterweight fixed for rotation with said driveshaft via said bushing.5. The compressor of claim 4 , wherein said counterweight includes a first portion attached to said bushing and a second portion extending from said first portion and into said chamber in a direction away from said end plate.6. The compressor of claim 5 , wherein said first portion is attached to a distal end of said bushing and said bushing is attached at a distal end of said driveshaft.7. The compressor of claim 5 , wherein said first portion is attached to an outer surface of said bushing along a length of said bushing between a first end and a ...

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Номер записи: 82
21-09-2017 дата публикации

COMPRESSOR VALVE SYSTEM AND ASSEMBLY

Номер: US20170268510A1
Автор: BONEAR Ronald E., IGNATIEV Kirill M., Stover Robert C.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor may include first and second scroll members having first and second scroll wraps, respectively. The scroll members define a suction inlet, a discharge outlet, and fluid pockets moving therebetween. The second scroll member may include a port, and a passage. The port may be in fluid communication with at least one of the pockets. The passage may extend through a portion of the second end plate and may be in fluid communication with the port. A valve assembly may be disposed in the passage and may include a valve member displaceable between open and closed positions. A recompression volume may be disposed between the valve member and the at least one of the pockets. The recompression volume may be less than or equal to approximately one percent of a volume of one of the pockets at a suction seal-off position.

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Номер записи: 83
28-09-2017 дата публикации

Motor-driven compressor and cooling system

Номер: US20170274728A1
Автор: Hideaki Mizuno, Junya Suzuki, Rei Morinaga
Принадлежит: Toyota Industries Corp, Toyota Motor Corp

A motor-driven compressor is installed in a fuel cell vehicle to supply air to a fuel cell. The motor driven compressor includes a rotation shaft, an electric motor, a compression unit that compresses air, a housing that includes a motor chamber and a compression chamber, and a seal member that restricts a flow of a fluid between the motor chamber and the compression chamber. The housing includes an inlet and an outlet. The inlet draws, into the motor chamber, the air-conditioning refrigerant that has passed through the evaporator but has not reached the air-conditioning compressor as a low-temperature refrigerant. The outlet discharges the low-temperature refrigerant, which is drawn from the inlet into the motor chamber, out of the motor chamber.

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Номер записи: 84
29-09-2016 дата публикации

ELECTRIC COMPRESSOR

Номер: US20160281698A1
Автор: KINOSHITA Yusuke, KOIDE Tatsuya, SUITOU Ken, Yano Junya
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

An electric compressor includes a compression mechanism, an electric motor, an inverter, a housing, and a cover attached to the housing to accommodate the inverter between the cover and the housing. The cover is constituted of a metal frame portion and a resin portion covering the frame portion to surround surfaces of the frame portion. 1. An electric compressor , comprising:a compression mechanism for compressing a fluid;an electric motor for driving the compression mechanism;an inverter for driving the electric motor;a housing for accommodating the compression mechanism and the electric motor; anda cover attached to the housing to accommodate the inverter between the cover and the housing, whereinthe cover is constituted of a metal frame portion and a resin portion covering the frame portion to surround surfaces of the frame portion,the frame portion has a plate-like portion and a peripheral wall portion extending from an outer peripheral edge of the plate-like portion toward the housing,the peripheral wall portion has concaves and convexes including at least one of a concave portion recessed in a thickness direction of the plate-like portion and a convex portion protruding in the thickness direction of the plate-like portion, at an end portion which is far from the plate-like portion, andthe resin portion is engaged with the concaves and convexes.2. The electric compressor according to claim 1 , wherein the concaves and convexes are provided continuously.3. The electric compressor according to claim 2 , wherein the concaves and convexes are provided continuously along an entire perimeter of the peripheral wall portion.4. The electric compressor according to claim 1 , wherein the peripheral wall portion includes concave and convex portions provided continuously when viewed in the thickness direction of the plate-like portion.5. The electric compressor according to claim 4 , wherein the concave and convex portions are provided continuously along an entire perimeter ...

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Номер записи: 85
18-12-2014 дата публикации

GAS COMPRESSOR

Номер: US20140369878A1
Автор: Hirono Kouji, Kaneko Shizuma, Osaki Tatsuya, Shimaguchi Hirotada, Tsuda Masahiro
Принадлежит:

A gas compressor includes a cylinder member (), a rotor (), and a plurality of vanes (), wherein a proximal section () is provided between the cylinder member () and the rotor (), so that a single cylinder room () which performs a refrigerant gas (G) compression cycle one-time per one rotation of the rotor () is formed, and at least one sub-discharge section () which maintains pressure of the refrigerant gas (G) in a compression room () in discharge pressure (P) by releasing the pressure of the compression room () when the pressure of the refrigerant gas (G) in the compression room () reaches the discharge pressure (P). 1. A gas compressor , comprising:a hollow cylinder member;a rotor rotatably disposed inside the cylinder member;a plurality of vanes attached to the rotor in a projectable and houseable manner, the plurality of vanes including leading ends which have contact with an inner circumferential surface of the cylinder member, so as to form a plurality of compression rooms inside the cylinder member, whereina cylinder room which changes a volume of the compression room, and performs a gas compression cycle is formed between the cylinder member and the rotor,a suction section which sucks the gas is provided upstream of the cylinder room,a discharge section which discharges the gas is provided downstream of the cylinder room,a proximal section in which the cylinder member and the rotor come close to each other is provided in one position between the cylinder member and the rotor, so that a single cylinder room which performs the gas compression cycle one-time per one cycle for each compression room is formed, andat least one sub-discharge section, which maintains discharge pressure of the gas by releasing pressure of the compression room when the pressure of the gas in the compression room reaches the discharge pressure, is provided upstream of the discharge section.2. The gas compressor according to claim 1 , wherein the sub-discharge section is disposed ...

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Номер записи: 86
05-10-2017 дата публикации

Vacuum-Processing Device and Control Method Therefor, and Vacuum Soldering Device and Control Method Therefor

Номер: US20170282270A1
Автор: Kagaya Tomotake
Принадлежит:

The invention enables quick evacuation of a chamber to a specified target degree of vacuum while increasing selectivity of evacuation conditions. A vacuum-processing device contains a chamber that enables a workpiece to be soldered in a vacuum environment, an operating part that sets a condition for evacuating the chamber , a pump that evacuates the chamber , and a control portion that calculates the amount of decrease in the degree of vacuum when evacuating the chamber using a predetermined pump output, sets the calculated value as a reference value and switches an evacuation property from the evacuation property including a lower pump output to the evacuation property including a higher pump output when the calculated amount of decrease in degree of vacuum in real time has become smaller than the reference value. 1. A vacuum-processing device comprising:a chamber to be evacuated;an operating part that sets a condition for evacuating the chamber;a pump that evacuates the chamber based on the evacuation condition, the pump having a plurality of pump outputs; anda control portion that performs an evacuation control of the pump so as to switch a pump output to a higher pump output based on a fact that an amount of decrease in degree of vacuum per unit time, at a time of evacuation of the chamber using a predetermined pump output, has become smaller than a reference value, wherein the control portion sets, as the reference value, the amount of decrease in degree of vacuum per unit time when a predetermined time elapses from the evacuation of the chamber using a predetermined pump output.2. (canceled)3. The vacuum-processing device according to claim 1 , wherein the control portion always compares the amount of decrease in degree of vacuum per unit time for the selected pump output with the reference value during evacuation claim 1 , and switches the pump output to the higher pump output when the amount of decrease in degree of vacuum per unit time has become smaller ...

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Номер записи: 87
09-12-2021 дата публикации

METHOD FOR CONTROLLING A SCROLL COMPRESSOR, AND CONTROLLER FOR A SCROLL COMPRESSOR

Номер: US20210381512A1
Автор: Obrist Frank
Принадлежит:

The invention relates to a method used to control a scroll compressor having a first and a second spiral, in particular that are arranged one inside the other. The first spiral can be moved by a motor relative to the second spiral for a decompression or compression operation of the scroll compressor. The invention reduces vibration (actual acceleration forces) in the scroll compressor to allow for a longer service life by adapting a torque curve of the motor on the basis of measured acceleration forces on the scroll compressor which, in turn, is based on the position and/or positional angle of the first spiral relative to the second spiral such that the acceleration forces are reduced below a threshold or minimized. 18-. (canceled)9. A method for controlling a scroll compressor having first and second spirals arranged one inside the other , wherein the first spiral moves by operation of a motor relative to the second spiral for one of a decompression and compression operation of the scroll compressor , comprising:operating the motor to move the first spiral;measuring a plurality of acceleration forces on the scroll compressor, wherein the acceleration forces depend on one of a relative position and a positional angle of the first spiral to the second spiral; andadjusting a torque progression of the motor based on the measured acceleration forces to reduce actual acceleration forces on the motor.10. The method according to claim 9 , wherein adjusting the torque progression of the motor further comprises:shifting a torque phase of the motor in a first direction;in response to an increase in the measured acceleration forces, shifting the torque phase of the motor in a second direction opposite to the first direction; andin response to a decrease in the measured acceleration forces, continue shifting the torque phase of the motor in the first direction until a minimum for the measured acceleration forces has been reached.11. The method according to claim 10 , wherein ...

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Номер записи: 88
16-12-2021 дата публикации

OIL SUPPLY MECHANISM OF ROTATING MACHINERY AND ROTATING MACHINERY HAVING OIL SUPPLY MECHANISM

Номер: US20210388836A1
Автор: Hu Xiaowei, NI Lingfeng
Принадлежит: EMERSON CLIMATE TECHNOLOGIES (SUZHOU) CO., LTD.

An oil supply mechanism comprises: an oil pump device connected to a rotating shaft of a rotating machinery; a main oil supply passage formed in the rotating shaft substantially in the axial direction of the rotating shaft; and a bypass oil passage in communication with the main oil supply passage and allowing a part of lubricating oil in the main oil supply passage to flow out via the bypass oil passage. The bypass oil passage extends in a direction substantially transverse to the rotating shaft. The bypass oil passage is configured such that a radial distance from an outlet of the bypass oil passage to the axis of the rotating shaft is greater than the radius of the rotating shaft. 1. An oil supply mechanism of a rotating machinery comprising a rotating shaft , the oil supply mechanism comprising:a main oil supply passage formed in the rotating shaft substantially in an axial direction of the rotating shaft; anda bypass oil passage in communication with the main oil supply passage and allowing a part of lubricating oil in the main oil passage to flow out via the bypass oil passage,wherein the bypass oil passage extends substantially transversely to the rotating shaft, and the bypass oil passage is configured such that a radial distance between an outlet of the bypass oil passage and an axis of the rotating shaft is greater than a radius of the rotating shaft.2. The oil supply mechanism according to claim 1 , wherein a ratio of the radial distance to the radius ranges from 2 to 5.3. The oil supply mechanism according to claim 2 , wherein the ratio ranges from 2.5 to 4.4. The oil supply mechanism according to claim 1 , wherein the bypass oil passage comprises a first passage portion and a second passage portion connected to each other claim 1 , the first passage portion is in direct fluid communication with the main oil supply passage claim 1 , and a cross-sectional area of the first passage portion is greater than a cross-sectional area of the second passage ...

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Номер записи: 89
22-10-2015 дата публикации

Contact member, slide member, compressor comprising contact member or slide member, and manufacturing method of compressor

Номер: US20150300340A1
Автор: Hirotaka Kawabata, Hiroyuki Fukuhara, Masakazu Yamaoka, Yoshinori Ishida, Yoshiyuki Futagami
Принадлежит: Panasonic Corp, Panasonic Intellectual Property Management Co Ltd

A contact member or a slide member of the present invention comprises a surface treatment film ( 160 ) including two or more coating layers stacked together, in at least a portion of a contact surface or a slide surface thereof, wherein each of the coating layers includes synthetic resin and a solid lubricant, and wherein the solid lubricant ( 162 ) of the coating layer located at an innermost side is lower in content percentage than the solid lubricant of the coating layer located at an outermost side. A contact member or a slide member of the present invention comprises a surface treatment film ( 160 ) including two or more coating layers stacked together, in at least a portion of a contact surface or a slide surface thereof, each of the coating layers includes synthetic resin, and the coating layer located at an innermost side is larger in elastic deformation amount than the coating layer located at an outermost side.

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Номер записи: 90
22-10-2015 дата публикации

PULSATION DAMPENING ASSEMBLY

Номер: US20150300353A1
Автор: Butler Brian, JUGE Vinayak, MOGAL Prashant, UTPAT Ajay
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

The present disclosure provides a pulsation dampening assembly for a compressor having an outlet port configured for supplying compressed refrigerant from a compression mechanism of the compressor. The pulsation dampening assembly includes a pulsating disc and a spring. The pulsating disc and the spring are disposed within the outlet port. The pulsating disc includes a plurality of apertures in fluid communication with the compression mechanism. The spring includes a first end engaging the pulsating disc and a second end engaging the outlet port. The pulsating disc is translatably disposed within the outlet port between an operative state and an inoperative state. 1. A pulsation dampening assembly for compressors , said pulsation dampening assembly adapted to be disposed in an outlet port configured in a housing of a compressor for supplying compressed refrigerant outside the compressor , said assembly comprising:an insert adapted to be attached to the outlet port, said insert comprising a base, a wall extending from said base, and a through-hole defined by a first diameter portion and a second diameter portion of said wall, wherein said first diameter portion comprises a plurality of first apertures located adjacent to said second diameter portion, said base abutting the housing of the compressor when said insert is attached within the outlet port;a first helical spring and a second helical spring co-axially spaced apart within said through-hole of said insert; and a cylindrically shaped lower portion having an open bottom end for facilitating entry of compressed refrigerant in said lower portion and a plurality of second apertures in a wall of said lower portion, each second aperture and each first aperture facilitating exit of compressed refrigerant from said lower portion;', 'a flange integral with said cylindrically shaped lower portion and located on a top end of said cylindrically shaped lower portion whereby a bottom surface of said flange seals said top end ...

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Номер записи: 91
19-09-2019 дата публикации

IN-VEHICLE MOTOR-DRIVEN COMPRESSOR AND METHOD FOR CONTROLLING IN-VEHICLE MOTOR-DRIVEN COMPRESSOR

Номер: US20190285069A1
Автор: KAWASHIMA Takashi, NAJIMA Kazuki
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

An in-vehicle motor-driven compressor includes a temperature rise estimator configured to estimate a temperature rise of the diode based on an expected reverse current, an on-voltage of the diode, and a heat resistance of the diode. The in-vehicle motor-driven compressor further includes a rotation speed controller configured to set a rotation speed limit of the electric motor, based on the estimated temperature rise of the diode so that a temperature of the diode does not exceed a junction temperature of the diode even when the electric motor is stopped and the reverse current flows through the diode, and limit a rotation speed of the electric motor to lower than or equal to the rotation speed limit. 1. An in-vehicle motor-driven compressor , comprising:a compression unit configured to compress a fluid;an electric motor configured to drive the compression unit; andan inverter configured to drive the electric motor, whereinthe inverter includes a switching element that is configured to perform switching and convert DC voltage of a battery into AC voltage to drive the electric motor and a diode that is connected in parallel to the switching element, and a temperature rise estimator configured to estimate a temperature rise of the diode based on an expected reverse current, an on-voltage of the diode, and a heat resistance of the diode, wherein the reverse current is a current that flows from the electric motor via the diode to the battery when the electric motor is stopped and a back electromotive voltage of the electric motor exceeds an input voltage of the battery, and', 'a rotation speed controller configured to set a rotation speed limit of the electric motor, based on the estimated temperature rise of the diode so that a temperature of the diode does not exceed a junction temperature of the diode even when the electric motor is stopped and the reverse current flows through the diode, and limit a rotation speed of the electric motor to lower than or equal to the ...

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Номер записи: 92
17-09-2020 дата публикации

Climate-Control System Having Valve Assembly

Номер: US20200291943A1
Автор: MCBEAN James W., Stover Robert C.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor includes a shell, first and second scroll members, a fitting assembly and a valve assembly. The first scroll member includes a first end plate having a first spiral wrap extending therefrom. The second scroll member includes a second end plate having a second spiral wrap extending therefrom and an injection passage formed in the second end plate. The second spiral wrap is meshingly engaged with the first spiral wrap to form compression pockets. The injection passage is in fluid communication with the compression pockets. The fitting assembly is in fluid communication with the injection passage. The valve assembly coupled to one of the second scroll member and the fitting assembly and movable between a closed position in which fluid communication between the compression pockets and the suction chamber is prevented and an open position in which fluid communication between the compression pockets and the suction chamber is allowed.

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Номер записи: 93
05-11-2015 дата публикации

Main bearing housing, dynamic scroll component and scroll compressor

Номер: US20150316093A1
Автор: XIAOGENG Su
Принадлежит: Emerson Climate Technologies Suzhou Co Ltd

Disclosed are a main bearing housing ( 40 ) for a scroll compressor, a dynamic scroll component ( 60 ) for the scroll compressor and the scroll compressor. The main bearing housing ( 40 ) comprises an anti-thrust surface (S 1 ) for supporting the dynamic scroll component ( 60 ), an uneven construction (W) is formed on at least one portion of the anti-thrust surface (S 1 ) to enable a lubricant to form a fluid dynamic pressure lubricating oil film between the main bearing housing ( 40 ) and the dynamic scroll component ( 60 ). The dynamic scroll component ( 60 ) comprises an anti-thrust surface (S 2 ) for being supported by the main bearing housing ( 40 ), wherein an uneven construction (W) is formed on at least one portion of the anti-thrust surface (S 2 ) to enable the lubricant to form a fluid dynamic pressure lubricating oil film between the main bearing housing ( 40 ) and the dynamic scroll component ( 60 ). The scroll compressor comprises at least one of the main bearing housing ( 40 ) and the dynamic scroll component ( 60 ). No matter whether the dynamic scroll component ( 60 ) can produce sufficient oblique circumferential translation or not, a good lubrication can be provided between the dynamic scroll component ( 60 ) and the main bearing housing ( 40 ).

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Номер записи: 94
19-11-2015 дата публикации

AIR COMPRESSION APPARATUS

Номер: US20150330408A1
Автор: KUROMITSU Masaru, MIYAUCHI Tatsuo, MIZUFUNE Toru, Takahashi Akira
Принадлежит:

The present application discloses an air compression apparatus mounted on a vehicle. The air compression apparatus includes a first air compressor configured to generate first compressed air, a first cooling fan configured to send first cooling wind in a first direction to cool the first air compressor, and a second air compressor aligned with the first air compressor in a second direction intersecting with the first direction. The second air compressor generates second compressed air.

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Номер записи: 95
01-10-2020 дата публикации

Compressor Having Directed Suction

Номер: US20200309124A1
Автор: KING Joshua S.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor that includes a shell assembly, a compression mechanism and a conduit. The shell assembly defines a chamber. The compression mechanism is disposed within the chamber of the shell assembly and includes a first scroll member and a second scroll member in meshing engagement with each other. The second scroll member includes an externally located slot and a suction inlet. The conduit includes a first end that defines an inlet opening and a second end that defines an outlet opening. The second end includes a connecting arm that has a first boss extending therefrom. The second end snaps into engagement with the second scroll member such that the first boss is received within the slot of the second scroll member. 1. A compressor comprising:a shell assembly defining a chamber;a compression mechanism disposed within the chamber of the shell assembly and including a first scroll member and a second scroll member in meshing engagement with each other, the second scroll member including an externally located slot and a suction inlet; anda conduit including a first end defining an inlet opening and a second end defining an outlet opening, the conduit directing working fluid into the suction inlet, the second end includes a connecting arm having a first boss extending therefrom, the second end snaps into engagement with the second scroll member such that the first boss is received within the slot of the second scroll member.2. The compressor of claim 1 , wherein the connecting arm is arcuate.3. The compressor of claim 1 , wherein the connecting arm includes a second boss extending therefrom claim 1 , and wherein the second boss is received within the slot of the second scroll member when the second end snaps into engagement with the second scroll member.4. The compressor of claim 3 , wherein the first boss and the second boss extend from opposing ends of the connecting arm.5. The compressor of claim 4 , wherein the first boss and the second boss prevent radial ...

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Номер записи: 96
22-11-2018 дата публикации

Scroll Compressor With Oil Management System

Номер: US20180335036A1
Автор: Akei Masao, DOEPKER Roy J., SHU Hongfei, Sun Qingfeng, ZHOU Guangyong
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor is provided and may include a shell, a main bearing housing disposed within the shell, a driveshaft, a non-orbiting scroll member, and an orbiting scroll member. The driveshaft may be supported by the main bearing housing. The non-orbiting scroll member may be coupled to the main bearing housing and may include a first lubricant supply path in fluid communication with a lubricant source. The orbiting scroll member may be rotatably coupled to the driveshaft and may be meshingly engaged with the non-orbiting scroll member. The orbiting scroll member may include a recess that is moved between a first position in fluid communication with the first lubricant supply path and a second position fluidly isolated from the first lubricant supply path. 1. A compressor comprising:a shell;a main bearing housing disposed within said shell;a driveshaft supported by said main bearing housing;a non-orbiting scroll member coupled to said main bearing housing and having a first surface defining a first lubricant recess; andan orbiting scroll member rotatably coupled to said driveshaft and meshingly engaged with said non-orbiting scroll member, said orbiting scroll member including a second lubricant recess and movable between a first position in which said second lubricant recess is in fluid communication with said first lubricant recess and a second position in which said second lubricant recess is fluidly isolated from said first lubricant recess.2. The compressor of claim 1 , wherein said second lubricant recess is moved between said first position and said second position based on a relative position of said orbiting scroll member and said non-orbiting scroll member.3. The compressor of claim 2 , wherein said relative position of said orbiting scroll member and said non-orbiting scroll member is based on rotation of said driveshaft.4. The compressor of claim 1 , further comprising a lubricant supply path fluidly coupling said second lubricant recess to a lubricant ...

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Номер записи: 97
10-12-2015 дата публикации

COMPRESSOR AND BEARING ASSEMBLY

Номер: US20150354571A1
Автор: Clendenin Harry, Sun Wei
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor is provided and may include a shell, a hub, an insert, and at least one collar. The hub may be disposed within the shell and define an axis of rotation. The hub may include an axially extending aperture. The insert may be disposed within the aperture. The at least one collar may be disposed about the hub. 1. A compressor comprising:a shell;a hub disposed within said shell and defining an axis of rotation, said hub including an axially extending aperture;an insert disposed within said aperture; andat least one collar disposed about said hub.2. The compressor of claim 1 , further comprising a drive shaft rotatably mounted within said insert.3. The compressor of claim 1 , wherein said collar is an annular collar having an inner diameter claim 1 , and said hub has an outer diameter that is larger than said inner diameter.4. The compressor of claim 3 , wherein said collar is press-fit on said hub.5. The compressor of claim 1 , wherein said insert is a cylindrical insert having an outer diameter claim 1 , and said aperture has an inner diameter that is smaller than said outer diameter.6. The compressor of claim 5 , wherein said insert is press-fit within said aperture.7. The compressor of claim 1 , wherein said insert is operable to rotate within said aperture about the axis of rotation.8. The compressor of claim 1 , wherein said hub further includes an axially extending recessed portion disposed about said aperture claim 1 , and wherein said collar is disposed about said recessed portion.9. The compressor of claim 1 , wherein said collar includes a radially inwardly extending portion configured to restrain relative movement between said insert and said hub.10. The compressor of claim 1 , wherein said collar comprises a lock nut and a retaining ring configured to engage said insert claim 1 , said retaining ring having protruding legs configured to engage an inner periphery of said hub claim 1 , and said lock nut configured to engage with threads formed on an ...

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Номер записи: 98
31-10-2019 дата публикации

Method for cooling a compressor or vacuum pump and a compressor or vacuum pump applying such a method

Номер: US20190331116A1
Автор: Alberto Di Sante, Koen STOOP, Luc Van Mieghem, Tom Andre J. POTTERS, William Maria JACOBS
Принадлежит: Atlas Copco Airpower NV

A compressor or vacuum pump including: —a casing having a cooling gas inlet and a cooling gas outlet for allowing a cooling gas to flow therethrough; —a fan mounted at the cooling gas inlet, including a fan housing and configured to blow said cooling gas into said casing; —a compression or vacuum chamber including a first housing, a process gas inlet and outlet for allowing a process gas to flow therethrough and at least one rotating element; —a driving module including a second housing and at least one bearing for supporting said at least one rotating element; —a silencer including a cover and configured to attenuate noise generated by the compressor or vacuum pump. The silencer includes a recess structure on its cover, configured to deflect the cooling gas flow from the fan towards the driving module.

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Номер записи: 99
14-11-2019 дата публикации

Compressor and refrigeration cycle apparatus

Номер: US20190346190A1
Автор: Hiroki Murakami, Hiroshi Yamamoto, Takashi Moriyama, Wahei SHINGU
Принадлежит: Mitsubishi Electric Corp

A compressor includes a container provided with an oil reservoir which is provided at a bottom portion of the container to allow oil to be collected in the oil reservoir. The container is provided such that a rotary shaft is inclined relative to the direction of gravity or to be laid horizontal. In the container, an electric motor mechanism, the rotary shaft, a compression mechanism and a frame which fixes the compression mechanism to the container are provided. To the container, a suction pipe is connected to cause refrigerant to flow into space between the frame and the electric motor mechanism. In the frame, a suction port is formed to cause the refrigerant having flowed into the space to flow into the compression mechanism, and each of the suction portion and a connection port of the suction pipe, which connects with the container is located at a position which is higher than or the same as the level of the rotary shaft as seen in a rotation axial direction. A rib is formed in a first flow passage which extends downwards in the direction of gravity from the connection port, extends through an area located above the oil reservoir, and reaches the suction port.

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Номер записи: 100