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Небесная энциклопедия

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

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Мониторинг СМИ

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

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 3705. Отображено 100.
19-01-2012 дата публикации

Discharge muffler and two-stage compressor including the same

Номер: US20120011876A1
Автор: Kenichi Sata, Shuuji Fujimoto
Принадлежит: Daikin Industries Ltd

A discharge muffler includes a muffler container. In the muffler container, refrigerating machine oil is separated from refrigerant gas containing the refrigerating machine oil, and the refrigerating machine oil is stored in a lower space. An inlet of an outlet pipe connected to the muffler container opens in the lower space.

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Номер записи: 1
26-04-2012 дата публикации

Rotor of compressor motor

Номер: US20120098359A1
Автор: Naoya Morozumi
Принадлежит: Individual

There is provided a rotor of a compressor motor at a low cost in which a balance weight is stably positioned. A rotor includes a rotor laminated steel plate ( 12 ), rotor end plates ( 16, 18 ) arranged on both end surfaces of the rotor laminated steel plate ( 12 ), and balance weights ( 20, 22 ) provided on the outer surfaces of the rotor end plates ( 16, 18 ), respectively. The rotor laminated steel plate ( 12 ) and the rotor end plates ( 16, 18 ) are provided with at least three axial through holes ( 24 ) that are equally spaced apart in the circumferential direction. The rotor laminated steel plate ( 12 ) and the rotor end plates ( 16, 18 ) are fixed by three rivets ( 26 a, 26 b, 26 c ) passing through the axial through holes ( 24 ), respectively. The balance weight ( 20 ) is fixed to the rotor end plate ( 16 ) by the two rivets ( 26 a, 26 b ) of the three rivets. The balance weight ( 22 ) is fixed to the rotor end plate ( 18 ) by the remaining one rivet ( 26 c ), and is positioned by the engagement members ( 28 ).

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Номер записи: 2
05-07-2012 дата публикации

Compressor

Номер: US20120171060A1
Автор: Jinung SHIN, Seseok SEOL
Принадлежит: LG ELECTRONICS INC

A compressor is provided that includes an accumulator formed in an internal space of a shell to reduce a size of the compressor. An accumulator space may be formed using the shell of the compressor, thereby simplifying an assembly process. A stationary shaft having a refrigerant suction passage may be directly connected to the accumulator to prevent leakage of refrigerant. A discharge passage may be formed in a rotating body to enhance a cooling effect of a drive motor, and an oil separating member may be installed in the discharge passage to prevent oil from being excessively leaked out. A center of gravity of the accumulator may correspond to a center of gravity of the compressor to reduce vibration noise of the compressor caused by the accumulator. An area for installing a compressor including the accumulator may be minimized to enhance design flexibility of an outdoor device.

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Номер записи: 3
05-07-2012 дата публикации

Hermetic compressor and manufacturing method thereof

Номер: US20120171067A1
Автор: Bumdong SA, Kangwook Lee
Принадлежит: LG ELECTRONICS INC

A hermetic compressor is provided, comprising: a cylindrical shell; a stator fixed to inner surface of the shell; a rotor rotatably installed with respect to the stator; a compression unit combined with the rotor to be rotated together with the rotor; a stationary shaft including an eccentric portion around which the compression unit is supported stationary with respect to a longitudinal direction thereof; an accumulator fixed to inside of the shell in such a manner sealing the upper end of the shell and fixedly supporting one end of the stationary shaft above the stator; a lower frame fixed to inside of the shell and fixedly supporting the other end of the stationary shaft; an upper cap to seal the upper end of the accumulator; and a lower cap to seal the lower end of the shell.

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Номер записи: 4
29-11-2012 дата публикации

Compressor and Refrigerating Cycle Apparatus

Номер: US20120301334A1
Автор: Baiying Huang, Hiroyasu Yoneyama, Kazuo Sakurai
Принадлежит: Hitachi Appliances Inc

In a conventional compressor, since a motor and a mechanical section of the compressor are disposed in one and the same closed container, the motor is exposed to high-temperature coolant and heated, and the efficiency of the motor is lowered. Further, during the operation of the compressor, the coolant circulating in the refrigerating cycle conveys additional heat generated by the motor coil. Thus the efficiency of the refrigerating cycle is lowered. The compressor according to the present invention includes a compression chamber divided into a closed chamber and an open chamber separated by a magnetic induction plate from each other. The closed chamber is filled with high temperature and pressure coolant and the rotor of the motor is disposed in the closed chamber, and the stator of the motor is disposed in the open chamber.

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Номер записи: 5
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: 6
11-07-2013 дата публикации

Compression device, and a thermodynamic system comprising such a compression device

Номер: US20130177404A1
Автор: Fabien Gall, Jean Bernardi, Jean-Francois LE COAT, Patrice Bonnefoi, Xavier Durand
Принадлежит: Danfoss Commercial Compressors SA

This compression device comprises first and second compressors mounted in parallel, a suction line intended to be connected to an outlet of an evaporator, first and second suction conduits arranged for putting the suction line respectively in communication with the admission orifices of the first and second compressors, and an oil level equalization conduit connecting the oil pans of the first and second compressors. The compression device further comprises an oil separator mounted on the suction line or on the second suction conduit, and an oil return conduit arranged for connecting an oil outflow orifice of the oil separator to the oil pan of the first compressor.

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Номер записи: 7
12-09-2013 дата публикации

Double-screw liquid pump

Номер: US20130236334A1
Автор: Yan Tang
Принадлежит: Shanghai Power Technology Screw Machinery Co Ltd

A double-screw liquid pump is provided, which is applicable to an Organic Rankin Cycle (ORC). The double-screw liquid pump includes a semi-sealed or fully sealed shell, and the shell includes a first cavity and a second cavity isolated from each other. A motor is disposed in the first cavity, and a main body part of a double-screw is disposed in the second cavity. At least one rotor of the double-screw is fixedly connected to a rotor of the motor, and the double-screw rotates through driving of the motor. A liquid refrigerant injection inlet and a refrigerant outlet are disposed on the first cavity, and the motor is cooled through evaporation of a liquid refrigerant; a liquid inlet and a liquid outlet are disposed on the second cavity. In the double-screw liquid pump applied to the ORC provided in the present invention, since a resistance torque of the female rotor is very small, the liquid pump does not wear even when the liquid viscosity is very low, contributing to good reliability, and thereby improving power generation efficiency of the ORC. In addition, the semi-sealed or fully sealed shell can effectively prevent leakage of the refrigerant.

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Номер записи: 8
26-09-2013 дата публикации

Rotary compressor with an installed circulation control unit

Номер: US20130251566A1
Автор: Nopparat Thipchuwong
Принадлежит: Individual

This rotary compressor with an installed circulation control unit utilizes a method to control a rotary compressor to start or stop injecting refrigerant at a predetermined velocity by means of an electromagnetic coil that is installed onto the rotary compressor. The end of the electromagnetic coil is tenon-shaped and enters into a mortise that is formed on a vane or an arm of the rotary compressor so that the operation alternates between suction and compression at a predetermined period, enabling control of the rate of refrigerant circulation. In addition, the rotary compressor does not restart during its operation, which enhances the performance of the air-conditioning system, saves costs and energy, and enables the air-conditioning system to be easily maintained and repaired.

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Номер записи: 9
31-10-2013 дата публикации

COMPRESSED GAS SUPPLY UNIT

Номер: US20130287592A1
Автор: Kobayashi Kenichi, UNAMI Atsushi
Принадлежит:

A compressed gas supply unit has scroll compressors. Gas discharged from the scroll compressors travels through a main supply passage and is reserved in a reservoir tank, after which the gas is supplied to a gas recipient from a supply passage. The scroll compressors include inverter devices that allow for independent modulation of the speeds of respective drive motors. The controller includes a speed range setting unit that sets an upper speed limit and a lower speed limit of the scroll compressors, a speed sum calculating unit that calculates a sum of speeds of the scroll compressors based on a load of the compressed gas supply unit, and a speed setting unit that allocates the calculated sum of speeds among the scroll compressors to set speeds for scroll compressors respectively. 1. A compressed gas supply unit , comprising: a plurality of scroll compressors , an inverter device allowing independent modulation of speeds of the respective scroll compressors , a merge pipe or a reservoir tank for collecting gas discharged from the plurality of scroll compressors , a pressure sensor detecting discharge pressure of the plurality of scroll compressors , and a controller controlling the inverter device for modulating the speeds of the respective scroll compressors ,the controller including a speed range setting unit that sets an upper speed limit and a lower speed limit of the plurality of scroll compressors, a calculating unit that calculates a sum of speeds of the plurality of scroll compressors based on a load of the compressed gas supply unit, and a speed setting unit that allocates the calculated sum of speeds among the scroll compressors to set speeds for the respective scroll compressors, whereinwhen the sum of speeds calculated by the calculating unit is lower than a sum of upper speed limits of all the scroll compressors, the speed setting unit reduces the speed of a first scroll compressor by a first difference between the calculated sum of speeds and the sum ...

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Номер записи: 10
19-12-2013 дата публикации

ROOTS PUMP AND EXHAUST METHOD

Номер: US20130336828A1
Автор: OHTA TAKASHI
Принадлежит: KABUSHIKI KAISHA TOSHIBA

According to one embodiment, a roots pump includes a first roots pump, a second roots pump, and a connection passage. The first roots pump includes a first casing which has a first pump chamber. The second roots pump includes a second casing which has a second pump chamber. The connection passage connects an exhaust hole which is provided in the first pump chamber to an intake hole which is provided in the second pump chamber. 1. A roots pump comprising:a first roots pump including a first casing which has therein a first pump chamber, a first gas transfer member which is disposed inside the first pump chamber and rotates so as to transfer a gas in a predetermined direction, and a first support member which supports the first gas transfer member;a second roots pump including a second casing which has therein a second pump chamber, a second gas transfer member which is disposed inside the second pump chamber and rotates so as to transfer a gas in a predetermined direction, and a second support member which supports the second gas transfer member; anda connection passage connecting an exhaust hole which is provided in the first pump chamber to an intake hole which is provided in the second pump chamber.2. The roots pump according to claim 1 , wherein in the connection passage claim 1 , a cross-sectional area perpendicular to a gas transfer direction decreases as it goes from the first roots pump toward the second roots pump.3. The roots pump according to claim 1 , whereinthe first casing, the first gas transfer member, and the first support member are formed of a material without corrosion resistance, andthe second casing, the second gas transfer member, and the second support member are formed of a material with corrosion resistance.4. The roots pump according to claim 1 , whereinthe first pump chamber has a plurality of pump chambers,the second pump chamber has a plurality of pump chambers, andthe connection passage is connected between a pump chamber constituting ...

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Номер записи: 11
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: 12
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: 13
03-04-2014 дата публикации

VACUUM PUMP STATORS AND VACUUM PUMPS

Номер: US20140093412A1
Автор: Stones Ian David
Принадлежит: EDWARDS LIMITED

Combined booster and primary pump arrangements can be bulky and require separate supplies of purge gas and cooling water. In order to overcome this problem invention provides a vacuum pump in which two or more pumping mechanisms, i.e. the booster pump and main pump, are housed in the same stator. The invention further provides a vacuum pump stator comprising at least two operatively interconnected cavities, wherein at least two of the cavities each comprise at least one rotor-receiving portion shaped to receive two or more at least partially intermeshing rotors, and wherein an axis of a rotor-receiving portion of a first one of the cavities is offset with respect to an axis of a rotor-receiving portion of a second one of the cavities. 1. A vacuum pump stator comprising at least two cavities , wherein at least first cavity of the at least two cavities and a second cavity of the at least two cavities each comprises a respective rotor-receiving portion shaped to receive at least one pair of intermeshing rotors , and wherein an axis of the respective rotor-receiving portion of the first cavities cavity is offset with respect to an axis of the respective rotor-receiving portion of the second cavity.2. The vacuum pump stator of claim 1 , wherein the at least two cavities are operatively interconnected by a conduit.3. The vacuum pump stator of claim 2 , wherein the conduit extends through a body of the vacuum pump stator to interconnect two cavities of the at least two cavities.4. The vacuum pump stator of any of claim 2 , or claim 2 , wherein at least one cavity of the at least two cavities comprises a plurality of axially aligned claim 2 , and interconnected claim 2 , rotor-receiving portions.5. The vacuum pump stator of claim 4 , wherein each of the plurality of axially aligned claim 4 , and interconnected claim 4 , rotor receiving portion is adapted claim 4 , in use claim 4 , to receive a pair of intermeshing rotors claim 4 , a first rotor of each pair of intermeshing ...

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Номер записи: 14
05-01-2017 дата публикации

Vane compressor

Номер: US20170002814A1
Автор: Hiroki Nagano, Kunihisa Matsuda, Tatsushi Mori, Yuya Hattori
Принадлежит: Toyota Industries Corp

In a vane compressor, a transmission pin is accommodated in a communication hole that provides communication between a first vane slot and a second vane slot. The transmission pin includes a loose-fit portion that is loosely inserted in a recessed portion formed in a bottom surface of each of first and second vanes, a shaft portion, and a flange portion formed between the loose-fit portion and the shaft portion and in contact with the bottom surface. A coil spring is disposed in the communication hole to urge the first vane and the second vane in opposite directions away from each other via the flange portion. The coil spring is disposed around the shaft portion and supported by the flange portion so as to urge and support the transmission pin.

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Номер записи: 15
05-01-2017 дата публикации

Rotary compressor

Номер: US20170003057A1
Автор: Junya Tanaka, Kenji Komine, Kenshi Ueda, Shuhei HOSHINO
Принадлежит: Fujitsu General Ltd

A rotary compressor includes a sealed vertical compressor housing, a compressing unit, and a motor. A refrigerant discharging unit is provided at an upper part and a refrigerant intake unit is provided at a lower part side surface in the sealed vertical compressor housing. The compressing unit is disposed on the lower part of the compressor housing, includes an annular cylinder, an end plate including a bearing unit and a discharge valve unit and blocking end portions of the cylinder, an annular piston that engages with an eccentric portion of a rotation axis supported by the bearing unit, revolves along a cylinder inner wall of the cylinder in the cylinder, and forms a cylinder chamber between the cylinder inner wall and the annular piston, and a vane. The motor is disposed on the upper part of the compressor housing, and drives the compressing unit via the rotation axis.

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Номер записи: 16
02-01-2020 дата публикации

CO-ROTATING SCROLL COMPRESSOR

Номер: US20200003213A1
Автор: Hirata Hirofumi, Ito Takahide, Yamashita Takuma
Принадлежит:

A co-rotating scroll compressor includes a driving-side scroll member that is rotationally driven by a driving unit and includes a spiral driving-side wall disposed on a driving-side end plate, and a driven-side scroll member () that includes a driven-side wall corresponding to the driving-side wall. The driven-side wall is disposed on a driven-side end plate () and engages with the driving-side wall to form a compression chamber. A first support member () is provided to a front end of a first driven-side wall () in an axis direction. The first support member () is connected to the front end by a positioning pin () positioning a phase around a rotation axis, and rotates together with the first driven-side wall (). The positioning pin () is pressed into the first support member () and is fitted into the first driven-side wall () in a non-pressed-in state. 1. A co-rotating scroll compressor , comprising:a driving-side scroll member that is rotationally driven by a driving unit and includes a spiral driving-side wall disposed on a driving-side end plate;a driven-side scroll member that includes a driven-side wall corresponding to the driving-side wall, the driven-side wall being disposed on a driven-side end plate and engaging with the driving-side wall to form a compression chamber; anda synchronous driving mechanism that transmits driving force from the driving-side scroll member to the driven-side scroll member to cause the driving-side scroll member and the driven-side scroll member to perform rotational movement in a same direction at a same angular velocity, whereina support member is provided to a front end of at least one of the driving-side wall and the driven-side wall in an axis direction, the support member being connected to the front end by a positioning pin positioning a phase around a rotation axis, and rotating together with the connected wall, andthe positioning pin is pressed into the support member and is fitted into the wall in a non-pressed-in ...

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Номер записи: 17
08-01-2015 дата публикации

INVERTED AIR COMPRESSOR

Номер: US20150010418A1
Автор: Farrow Glenn Edward, Smith Christopher Scott
Принадлежит:

In many fields, such as manufacturing and mining, compressed air is used as a power source for industrial equipment, hand power tools, etc. Extensive compressed air systems are installed in these environments to supply compressed air where it is needed. In mining, extensive belts are frequently used to move mined material. Idler rollers are located intermittently along these belts. Embodiments of the present invention include compressors located within these idler rollers. As the belt moves and causes the roller to turn, a compressor within the roller generates compressed air. Because the belt moves nearly continuously, but the compressed air may not be consumed continuously, the air will be vented periodically. Embodiments of the present invention use these vents to clean the filters for the system. Also, some embodiments of the compressor may be produced using a laminated, or stacked, method. 1. An inverted vane compressor comprising:an external rotor and an internal stator located within said rotor;said rotor comprising a concave cylindrical internal surface defining a cylindrical space symmetrical about a longitudinal axis, and two endplates, each said endplates enclosing opposing ends of said cylindrical space, each said endplate comprising a central aperture collinear with the axis of said cylindrical internal surface;said stator comprising a body having the length of said cylindrical space and two ends, each said end of said body parallel to a respective endplate, each said end having a shaft extending through said central aperture of its respective endplate, said body being symmetrical about a plane containing said longitudinal axis;said rotor further comprising at least one vane operatively associated with said internal surface and biased to extend from said cylindrical surface toward said axis of said internal surface said at least one vane maintaining contact with said body of said stator as said rotor turns about said axis;said stator further comprising ...

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Номер записи: 18
14-01-2021 дата публикации

COMPRESSOR

Номер: US20210010473A1
Автор: Choi Jungsun, KIM Cheolhwan, PARK Sangbaek
Принадлежит:

A compressor, more particularly, a scroll compressor provides structures that may enhance centrifugal stiffness at a contact point between a fixed scroll and an orbiting scroll. The compressor may include an orbiting scroll having an orbiting scroll wrap wound around a radial-direction inner area from a radial-direction outer area; and a fixed scroll having a fixed scroll wrap wound around the radial-direction inner area from the radial-direction outer area. A surfacing part may be configured to narrow a distance between the orbiting scroll wrap and the fixed scroll wrap may be formed in a predetermined section of the orbiting scroll or fixed scroll wrap. 1. A compressor comprising:an orbiting scroll having an orbiting scroll wrap;a fixed scroll having a fixed scroll wrap; anda surfacing part that is disposed at the orbiting scroll wrap or the fixed scroll wrap and that reduces a distance between the orbiting scroll wrap and the fixed scroll wrap.2. The compressor of claim 1 , wherein the distance between the orbiting scroll wrap and the fixed scroll wrap is uniform except for an area including the surface part and areas at ends of the orbiting scroll wrap and the fixed scroll wrap.3. The compressor of claim 1 , wherein the orbiting scroll wrap and the fixed scroll wrap have thicknesses that at least partially vary claim 1 , andwherein the distance between the orbiting scroll wrap and the fixed scroll warp is constant except for an area including the surfacing part.4. The compressor of claim 1 , wherein the orbiting scroll and the fixed scroll are configured to make four or five contact points between the orbiting scroll wrap and the fixed scroll wrap based on the orbiting scroll orbiting with respect to the fixed scroll.5. The compressor of claim 4 , wherein the surfacing part is disposed at one of the contact points.6. The compressor of claim 4 , wherein an orbiting angle of the orbiting scroll has (i) a first range in which the four contact points are made ...

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Номер записи: 19
15-01-2015 дата публикации

VACUUM PUMP OF VEHICLE FOR REDUCING OPERATION NOISE

Номер: US20150017045A1
Автор: OH Chunghan
Принадлежит: HYUNDAI MOTOR COMPANY

A vacuum pump of a vehicle for reducing operation noise may include a rotor rotating in a space defined by a housing formed in a pump body at an eccentric position relative to a center of the space, a vane installed to the rotor to rotate eccentrically in the space, and an oil outlet passing through the pump body and formed at a predetermined height above a lower limit of the space such that, when lubricant in the space is discharged in a pressurized state by the vane, the lubricant is not reintroduced back into the space by gravity. 1. A vacuum pump of a vehicle for reducing operation noise , comprises:a rotor rotating in a space defined by a housing formed in a pump body at an eccentric position relative to a center of the space;a vane installed to the rotor to rotate eccentrically in the space; andan oil outlet passing through the pump body and formed at a predetermined height above a lower limit of the space such that, when lubricant having been introduced into the space is discharged in a pressurized state by the vane, the lubricant is not reintroduced back into the space by gravity.2. The vacuum pump of claim 1 , wherein the oil outlet is formed above the center of the space and below an upper limit of the space.3. The vacuum pump of claim 2 , wherein:the housing is formed on an inside surface of the pump body and has a side groove formed adjacent to the oil outlet along a rotation direction of the vane; andthe vane passes through a front end of the side groove and then passes through a front end of the oil outlet, during rotation of the vane.4. The vacuum pump of claim 3 , wherein an installation angular section of the side groove is greater than that of the oil outlet on the basis of the center of the space.5. The vacuum pump of claim 3 , wherein an angle formed by a center of rotation of the rotor and both ends of the side groove is 77 degrees to 81 degrees.6. The vacuum pump of claim 1 , wherein a back surface of the oil outlet opposite to an installation ...

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Номер записи: 20
03-02-2022 дата публикации

Dual-cylinder two-stage variable cpacity compressor

Номер: US20220034320A1
Автор: Chunhui Liu, JIN Pan, Yanzhen Wang
Принадлежит: Shanghai Highly Electrical Appliances Co Ltd

A dual-cylinder two-stage variable capacity compressor is provided, including: a first cylinder, having an exhaust port connected to a first exhaust channel: a second cylinder, wherein the second cylinder is provided with a ventilating slider, and the ventilating slider is provided with a first gas transit channel and a second gas transit channel; wherein, when the ventilating slider is at a first connecting position, the first exhaust channel is connected to a suction channel in a second cylinder when the ventilating slider is at a second connecting position, the first exhaust channel is connected to a second exhaust channel. The compressor of the present disclosure can vary its own capacity, that is, the variation of the compressor's capacity can be realized by arranging a ventilating slider, which will meet the requirements of variation loads of the compressor in different seasons.

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Номер записи: 21
03-02-2022 дата публикации

COMPRESSOR

Номер: US20220034324A1
Автор: HA Jonghun, KIM Cheolhwan, Lee Kangwook, LEE Seungmock
Принадлежит:

The present invention relates to a compressor comprising: a muffler that provides a sealed space for guiding a refrigerant; and a resonator provided in the muffler and forming cavities separate from the sealed space to decrease vibration and noise caused by the refrigerant. 1. A compressor comprising:a case including a discharge outlet defined at one side of the case, the discharge outlet being configured to discharge a refrigerant to an outside of the case;a rotary shaft disposed in the case;a driving unit coupled to the case and configured to rotate the rotary shaft;a compression unit coupled to the rotary shaft and configured to compress the refrigerant;a muffler that is coupled to the compression unit and defines a sealed space configured to supply the refrigerant toward the discharge outlet; anda resonator disposed in the muffler, the resonator defining a cavity that is separate from the sealed space and configured to reduce vibration or noise of the compressor.2. The compressor of claim 1 , wherein the resonator includes:a resonant cover coupled to the muffler, the resonant cover defining the cavity; anda resonant hole defined through the resonant cover and configured to counterbalance or absorb the vibration or the noise.3. The compressor of claim 2 , wherein the resonator further includes a partition that divides the cavity into a plurality of cavities claim 2 , each cavity relating to a frequency of the vibration or the noise that is counterbalanced or absorbed by the resonant hole.4. The compressor of claim 3 , wherein the muffler includes:a coupling body coupled to the compression unit, andan accommodating body that extends from the coupling body and defines the sealed space, andwherein the partition includes a partition rib that extends from an outer circumferential surface of the rotary shaft toward an inner circumferential surface of the accommodating body, the partition rib dividing the cavity into the plurality of cavities.5. The compressor of claim ...

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Номер записи: 22
16-01-2020 дата публикации

Device for driving a compressor and method for assembling the device

Номер: US20200018300A1
Автор: Bernd Guntermann, David Walisko, Stephan Heinrichs
Принадлежит: Hanon Systems Corp

The invention relates to a device for driving a compressor of a vaporous fluid, particularly an electric motor. The device has a rotor and a stator, which are extended along a common longitudinal axis, as well as an insulation element. The insulation element is designed as a single part and connected with a stator core of the stator in a form-fitting manner such that the stator core and the insulation element form an integral and single-part component of the stator. The invention further relates to a method for producing a stator of the device, particularly the stator core with the insulation element.

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Номер записи: 23
19-01-2017 дата публикации

ELECTRIC MOTOR FOR COMPRESSOR, COMPRESSOR, REFRIGERATING CYCLE APPARATUS, AND METHOD FOR MANUFACTURING ELECTRIC MOTOR FOR COMPRESSOR

Номер: US20170018982A1
Автор: ARAI Toshio, CHANLAKON Suriwipha, JENWEERAWAT Nuttagun, Kato Taro, OKUGAWA Sadami, ONO Masashi, TSUTSUMI Takahiro
Принадлежит:

An aluminum wire, which is an electric wire of an electric motor of a compressor, is wound around a copper wire, which is another electric wire, at interval in the length direction. The portion around which the aluminum wire is wound is brazed with a brazing material containing a flux. Thus, the aluminum wire and the copper wire are joined together, and an electric wire joint section is formed. Insulating paper is mounted to the electric wire joint section. The inner surface of the insulating paper is brought into contact with the surface of the electric wire joint section to which a residue of the flux adheres. 1. An electric motor for a compressor comprising:a plurality of electric wires including an aluminum wire, the plurality of electric wires being joined together with a brazing material containing a flux, a joint portion of the plurality of electric wires having a surface of the brazing material to which a residue of the flux adheres; andan insulating material to cover the joint portion of the plurality of electric wires, the insulating material having an inner surface brought into contact with the surface of the brazing material in the joint portion of the plurality of electric wires.2. The electric motor for a compressor according to claim 1 , wherein one electric wire of the plurality of electric wires is wound around one or more other electric wires at interval in a length direction claim 1 , and a wound portion is brazed with the brazing material.3. The electric motor for a compressor according to claim 2 , wherein the residue of the flux adheres to a position corresponding to the interval on the surface of the brazing material in the joint portion of the plurality of electric wires.4. The electric motor for a compressor according to claim 2 , wherein the one electric wire is the aluminum wire and the one or more other electric wires are copper wires.5. The electric motor for a compressor according to claim 4 , wherein the copper wires are two or more ...

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Номер записи: 24
17-04-2014 дата публикации

HERMETIC COMPRESSOR

Номер: US20140105774A1
Автор: LEE Yunhi, Sa Bumdong, Shin Jinung
Принадлежит:

A hermetic compressor is provided that may include a fluid guide disposed in an inner space of an intermediate chamber, so as to guide oil, discharged from a first compression chamber of a first compression device into the inner space of the intermediate chamber, to a second compression chamber of a second compression device without remaining in the inner space of the intermediate chamber, whereby noise generated due to an excessive amount of oil remaining in the inner space of the intermediate chamber may be reduced, and simultaneously a shortage of oil in the second compression device may be prevented. 1. A hermetic compressor , comprising:a hermetic casing;a first cylinder installed in the hermetic casing, the first cylinder having a first compression chamber;a second cylinder installed in the hermetic casing, the second cylinder having a second compression chamber spaced from the first compression chamber;an intermediate chamber provided at an outlet side of the first compression chamber or at an outlet side of the second compression chamber; anda fluid guide installed in the intermediate chamber and configured to guide a fluid introduced into an inner space of the intermediate chamber outside of the intermediate chamber.2. The compressor of claim 1 , wherein the intermediate chamber is located between the first compression chamber and the second compression chamber.3. The compressor of claim 2 , wherein a secondary suction channel is formed between the first compression chamber and the second compression chamber claim 2 , to guide a refrigerant from the first compression chamber into the second compression chamber claim 2 , the refrigerant being compressed in the first compression chamber and discharged into the intermediate chamber claim 2 , and wherein the fluid guide communicates with the secondary suction channel.4. The compressor of claim 3 , wherein the fluid guide comprises an inlet and an outlet.5. The compressor of claim 4 , wherein the outlet of the ...

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Номер записи: 25
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: 26
26-01-2017 дата публикации

VANE PUMP

Номер: US20170022813A1
Автор: Goy Edward W., Ni Weishun, Wetch Joseph
Принадлежит:

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

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Номер записи: 27
26-01-2017 дата публикации

COMPRESSOR AND AIR CONDITIONER

Номер: US20170022988A1
Автор: HU Yusheng, Huang Hui, LIANG Shebing, LUO Huifang, Ren Liping, WEI Huijun, Wu Jian, XU Jia, YANG Ouxiang, Zhu Hongwei
Принадлежит: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

A compressor includes a low-pressure stage cylinder, a first high-pressure stage cylinder and a second high-pressure stage cylinder which are stacked, a partition is arranged between each two adjacent cylinders, the first and second high-pressure stage cylinders are both situated at a same side of the low-pressure stage cylinder or respectively situated at two sides of the low-pressure stage cylinder, the lower flange is situated below the low-pressure stage cylinder, the first high-pressure stage cylinder and the second high-pressure stage cylinder. A first sliding sheet is provided in the first high-pressure stage cylinder, a second sliding sheet is provided in the second high-pressure stage cylinder, and a third sliding sheet is provided in the low-pressure stage cylinder. The first and the second high-pressure stage cylinders are arranged in parallel, and the first and second high-pressure stage cylinders arranged in parallel are connected to the low-pressure stage cylinder in series. 1. A compressor , comprising:a low-pressure stage cylinder, a first high-pressure stage cylinder, a second high-pressure stage cylinder and a lower flange, wherein,the low-pressure stage cylinder, the first high-pressure stage cylinder and the second high-pressure stage cylinder are stacked, and a partition is arranged between each two adjacent cylinders, the first high-pressure stage cylinder and the second high-pressure stage cylinder are both situated at a same side of the low-pressure stage cylinder or the first high-pressure stage cylinder and the second high-pressure stage cylinder are respectively situated at two sides of the low-pressure stage cylinder, the lower flange is situated below the low-pressure stage cylinder, the first high-pressure stage cylinder and the second high-pressure stage cylinder;the first high-pressure stage cylinder has a first sliding sheet slot, and a first sliding sheet is provided in the first sliding sheet slot, the second high-pressure stage ...

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Номер записи: 28
25-01-2018 дата публикации

SCALLOP STEP FOR A SCROLL COMPRESSOR

Номер: US20180023569A1
Автор: BRANCH Scott M., Mlsna Eric S., SMERUD Scott J.
Принадлежит:

A scroll member for a scroll compressor is disclosed. The scroll member includes a base member and a wrap member formed on a major surface of the base member. The wrap member includes a modified portion. The modified portion includes a base, a step, and a scallop. The base extends a first distance from the major surface. The step extends a second distance from the base. The scallop extends a third distance from the scallop. The scallop is located at a wrap surface of the wrap member. The wrap surface is disposed relatively away from the major surface relative to the step. 1. A scroll member for a scroll compressor , comprising:a base member; anda wrap member formed on a major surface of the base member;wherein the wrap member includes a modified portion, the modified portion including a base, a step, and a scallop, the base extending a first distance from the major surface, the step extending a second distance from the base, the scallop extending a third distance from the step, the scallop being located at a wrap surface of the wrap member, the wrap surface being disposed relatively away from the major surface relative to the step.2. The scroll member according to claim 1 , wherein a thickness of the base is relatively greater than a thickness of the step.3. The scroll member according to claim 2 , wherein the thickness of the step is relatively greater than a thickness of the scallop.4. The scroll member according to claim 1 , wherein the modified portion is disposed at a tip portion of the wrap member claim 1 , the tip portion being disposed adjacent to a discharge port of the scroll compressor.5. The scroll member according to claim 1 , wherein the base member and the wrap member are formed of a single piece claim 1 , unitary construction.6. The scroll member according to claim 1 , wherein the scroll member further includes a groove in the wrap surface of the wrap member.7. A scroll compressor claim 1 , comprising:a compressor housing;a non-orbiting scroll member ...

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Номер записи: 29
24-01-2019 дата публикации

CONCENTRIC VANE COMPRESSOR

Номер: US20190024661A1
Автор: Wood Mark W.
Принадлежит:

A positive displacement device includes a first cylinder, a second cylinder disposed within the first cylinder, and a third cylinder disposed around the first cylinder. An interior surface of the first cylinder and an exterior surface of the second cylinder define an inner cavity. An exterior surface of the first cylinder and an interior surface of the third cylinder define an outer cavity. A partition between the interior surface of the first cylinder and the exterior surface of the second cylinder divides the inner cavity into inner regions, and another partition between the exterior surface of the first cylinder and the interior surface of the third cylinder divides the outer cavity into outer regions. The second cylinder and the third cylinder orbit with respect to the first cylinder to create alternating regions of high pressure and low pressure in the inner regions and the outer regions. 1. A positive displacement device comprising:a first cylinder having a wall with an interior surface and an exterior surface;a vane slidably extending through the wall of the first cylinder, the vane having a first tip and a second tip;a second cylinder disposed within the first cylinder, the second cylinder having an exterior surface, the interior surface of the first cylinder and the exterior surface of the second cylinder defining an inner cavity therebetween, the vane moveable with respect to the second cylinder and in sealing contact between the interior surface of the first cylinder and the exterior surface of the second cylinder to divide the inner cavity into a first inner region and a second inner region, the first tip of the vane in contact with the exterior surface of the second cylinder;a third cylinder disposed around the first cylinder, the third cylinder having an interior surface, the exterior surface of the first cylinder and the interior surface of the third cylinder defining an outer cavity therebetween, the vane moveable with respect to the third cylinder ...

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Номер записи: 30
31-01-2019 дата публикации

SCROLL COMPRESSOR AND REFRIGERATION CYCLE APPARATUS

Номер: US20190032665A1
Автор: FUKUHARA Koichi, ISHIZONO Fumihiko, MATSUI Tomokazu, TAKAMURA Yuji, TATSUWAKI Kohel
Принадлежит:

A scroll compressor includes a crank shaft , an orbiting scroll , and a second plug part . The crank shaft has a lubricant channel which allows lubricant to flow therethrough. The orbiting scroll is attached to the crank shaft and has a second inner channel that allows the lubricant supplied thereto through the crank shaft to outwardly flow therethrough. The second plug part serving as an adjustment part is provided in the second inner channel of the orbiting scroll and adjusts a flow amount of the lubricant flowing through the second inner channel 1. A scroll compressor comprising:a crank shaft having a lubricant channel which allows lubricant to flow therethrough;an orbiting scroll attached to the crank shaft;{'b': '6', 'inner channels provided in the orbiting scroll, including a first inner channel and a second inner channel, and allowing the lubricant supplied thereto through the crank shaft () to outwardly flow therethrough; and'}an adjustment part provided in the at least one second inner channel and configured to adjust a flow amount of the lubricant flowing through the at least one inner channel.2. The scroll compressor of claim 1 ,wherein the adjustment part has a through hole having a smaller area of a channel than an area of a channel for the lubricant in the at least one inner channel.3. The scroll compressor of claim 2 ,{'b': 1', '2', '2', '1, 'wherein, when a diameter of a hole of the at least one inner channel is R and a diameter of a hole of the through hole is R, following relationships are satisfied: R/R is from 30 to 50%.'}4. The scroll compressor of claim 1 , a discoidal base plate, and', 'a cylindrical part that projects from one surface of the base plate, and, 'wherein the orbiting scroll includes'}wherein one end of the at least one inner channel is connected to an inside of the cylindrical part at one end and an other end penetrates the base plate to an outer side of the base plate.5. The scroll compressor of claim 4 ,wherein a plug part that ...

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Номер записи: 31
04-02-2021 дата публикации

ROTARY COMPRESSOR

Номер: US20210033094A1
Автор: HOSHINO Shuhei
Принадлежит: FUJITSU GENERAL LIMITED

A rotary compressor includes: a compressor housing stores lubricating oil; a compression unit compresses the refrigerant; and a motor drives the compression unit. The compression unit includes a cylinder, an upper end plate and a lower end plate, a main bearing provided on the upper end plate, a sub bearing provided on the lower end plate, a rotary shaft supported by the main bearing and the sub bearing, and a piston fitted to the rotary shaft. An inner peripheral surface of a shaft hole of the sub bearing is provided with an oil-supply groove having a helical shape that supplies the lubricating oil from a lower end to an upper end of the shaft hole, and the oil-supply groove is inclined with respect to the rotary shaft in a rotating direction and extends from the lower end toward the upper end of the rotary shaft in the rotating direction. 1. A rotary compressor comprising:a compressor housing hermetically sealed, having a cylindrical shape to be vertically arranged, being provided with a discharge unit and a suction unit of refrigerant, and configured to store lubricating oil in a lower part of the compressor housing; a compression unit disposed at a lower part of the compressor housing and configured to compress the refrigerant sucked from the suction unit and discharge the compressed refrigerant from the discharge unit; and a motor disposed on an upper part of the compressor housing and configured to drive the compression unit,the compression unit including a cylinder having an annular shape, an upper end plate that closes an upper side of the cylinder, a lower end plate that closes a lower side of the cylinder, a main bearing provided on the upper end plate, a sub bearing provided on the lower end plate, a rotary shaft supported by the main bearing and the sub bearing so as to be rotated by the motor, and a piston having an annular shape, and configured to be fitted to an eccentric part of the rotary shaft and to revolve along an inner peripheral surface of the ...

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Номер записи: 32
18-02-2016 дата публикации

MULTI-CYLINDER ROTARY COMPRESSOR AND VAPOR COMPRESSION REFRIGERATION CYCLE SYSTEM INCLUDING THE MULTI-CYLINDER ROTARY COMPRESSOR

Номер: US20160047379A1
Автор: IWASAKI Toshiaki, Kato Taro, Maeyama Hideaki, MOROE Shogo, SUGIURA Kanichiro, Takahashi Shinichi, Yokoyama Tetsuhide
Принадлежит: Mitsubishi Electric Corporation

A multi-cylinder rotary compressor includes plural compression mechanism parts. A drawing force is applied to a vane of at least one of the compression mechanism parts radially outward with respect to a drive shaft, making a pressing force pressing the vane toward a piston smaller than in other compression mechanism parts. In a normal state, a pressing force due to a gas pressure difference between a suction pressure and a discharge pressure is larger than the drawing force, and a vane front end is pressed against a rotary piston peripheral wall. When the drawing force becomes greater than the pressing force, the vane front end is moved to separate from the rotary piston peripheral wall with a space through which oil is introduced from a sealed container, and a retention mechanism retains the vane separated from the piston, and the compression mechanism part switches to an uncompressed state. 1: A multi-cylinder rotary compressor comprising:a drive shaft including a plurality of eccentric-pin shaft portions;an electric motor configured to drive and rotate the drive shaft;a plurality of compression mechanisms; anda sealed container housing the electric motor and the plurality of compression mechanisms and storing lubricating oil at a bottom thereof, a cylinder having a cylinder chamber into which low-pressure refrigerant is sucked from a suction pressure space and from which compressed high-pressure refrigerant is discharged to a discharge pressure space,', 'a ring-shaped piston slidably attached to each of the plurality of eccentric-pin shaft portions of the drive shaft and configured to eccentrically rotate in the cylinder chamber,', 'a vane configured to separate the cylinder chamber into two spaces when a front end of the vane is pushed against an outer peripheral surface of the piston,', 'a vane groove housing the vane in such a manner that the vane reciprocates therein and being open to the cylinder chamber, and', 'a vane rear chamber housing a rear end of the ...

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Номер записи: 33
25-02-2021 дата публикации

ROTARY COMPRESSOR AND REFRIGERATION CYCLE APPARATUS

Номер: US20210054842A1
Автор: Hirayama Takuya
Принадлежит: TOSHIBA CARRIER CORPORATION

According to one embodiment, a rotary shaft of a rotary compressor includes a first connection shaft and a second connection shaft. The first connection shaft has a cross-sectional shape including a first outer surface, a second outer surface, and a third outer surface. L1 represents a distance from an intersecting point located on one end side where the first outer surface and the second outer surface intersect each other to the rotation center, L2 represents a distance from an intersecting point located on an other end side where the first outer surface and the second outer surface intersect each other, to the rotation center, and L3 represents a distance from the third outer surface to the rotation center, a relationship of L1>L3≥L2 is satisfied. 1. A rotary compressor comprising:a rotary shaft including a first journal portion supported by a first bearing, a second journal portion provided coaxial with the first journal portion and supported by a second bearing, first to third crank portions provided between the first journal portion and the second journal portion, arranged along an axial direction of the journal portions with intervals respectively therebetween and having circular cross sectional shapes whose eccentric directions are shifted in a circumferential direction of the journal portions, a first connection shaft provided across between the first crank portion and the second crank portion, and a second connection shaft provided across between the second crank portion and the third crank portion, which are integrated as one body, eccentric directions of adjacent pairs of the crank portions being shifted with respect to a rotation center of the journal portions in a circumferential direction within a range of 120°±10°;ring-like rollers engaged with outer circumferential surfaces of the first to third crank portions, respectively;a first cylinder body accommodating the respective roller engaged with the first crank portion, and the respective roller ...

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Номер записи: 34
13-02-2020 дата публикации

AIR INJECTION ENTHALPY-INCREASING SCROLL COMPRESSOR AND REFRIGERATION SYSTEM

Номер: US20200049147A1
Автор: Aiba Osamu, CHEN Honghui, HUANG Baiying, LIANG Weiheng, Zhang Kang
Принадлежит: GUANGDONG MIDEA ENVIRONMENTAL TECHNOLOGIES CO., LTD.

Provided are an air injection enthalpy-increasing scroll compressor, and a refrigeration system comprising the air injection enthalpy-increasing scroll compressor. The air injection enthalpy-increasing scroll compressor comprises a compressor housing, a main frame (), a movable scroll plate () and a stationary scroll plate (). The movable scroll plate () is arranged on the main frame (). The movable scroll plate () comprises a movable plate end plate () and a movable scroll tooth () arranged on a side end face, away from the main frame (), of the movable plate end plate (), with a back pressure chamber being defined between the movable plate end plate () and the main frame (). The stationary scroll plate () is arranged on one side, away from the main frame (), of the movable scroll plate (). The stationary scroll plate () comprises a fixed scroll end plate () and a stationary scroll tooth () arranged on a side end face, adjacent to the main frame (), of the fixed scroll end plate (). The stationary scroll tooth () and the movable scroll tooth () are engaged with each other to form a crescent-shaped compression cavity. At least one of the movable scroll plate () and the stationary scroll plate () is provided with medium pressure passages (), and during the rotation of the movable scroll plate (), the medium pressure passages () are suitable for communicating the compression cavity with the back pressure chamber. The air injection enthalpy-increasing scroll compressor can inhibit the overturning of the moving scroll plate () during operation, thereby improving the performance of the air injection enthalpy-increasing scroll compressor. 1. An enhanced vapor injection scroll compressor , comprising:a compressor housing;a main frame disposed in the compressor housing;an orbiting scroll arranged on the main frame and comprising an orbiting scroll end plate and an orbiting scroll wrap arranged on a side end face of the orbiting scroll end plate away from the main frame, a ...

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Номер записи: 35
23-02-2017 дата публикации

Scroll type device incorporating spinning or co-rotating scrolls

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

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

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Номер записи: 36
10-03-2022 дата публикации

A SCROLL COMPRESSOR INCLUDING A BASEPLATE HAVING A MOUNTING BASE AND A CYLINDRICAL RIM SECURED BY A DOUBLE-WELDED T-JOINT

Номер: US20220074412A1
Автор: Bou Dargham Remi, Daussin Arnaud, GENEVOIS David, Gross Dominique, Montes Cyril
Принадлежит:

The scroll compressor () including a hermetic enclosure (), a compression unit () configured to compress refrigerant, and an electric motor () configured to drive the compression unit () via a drive shaft (), the hermetic enclosure () including a midshell (), an upper cap () and a baseplate (), the baseplate () including a mounting base () having a plate shape and including a central portion, and a cylindrical rim surrounding the central portion and extending upwardly, the cylindrical rim () being secured to the mounting base () by a double-welded T-joint (), the double-welded T-joint () including an inner welding seam connecting an inner surface of the cylindrical rim () to the mounting base (), and an outer welding seam connecting an outer surface of the cylindrical rim () to the mounting base (). 1. A scroll compressor comprising a hermetic enclosure , a compression unit configured to compress refrigerant , and an electric motor configured to drive the compression unit via a drive shaft , the hermetic enclosure comprising a midshell , an upper cap and a baseplate , the baseplate comprising a mounting base having a plate shape and including a central portion , wherein the baseplate further comprises a cylindrical rim surrounding the central portion and extending upwardly , the cylindrical rim being secured to the mounting base by a double-welded T-joint , the double-welded T-joint including an inner welding seam connecting an inner surface of the cylindrical rim to the mounting base , and an outer welding seam connecting an outer surface of the cylindrical rim to the mounting base.2. The scroll compressor according to claim 1 , wherein the cylindrical rim extends substantially perpendicularly to an upper surface of the mounting base.3. The scroll compressor according to claim 1 , wherein each of the inner welding seam and the outer welding seam is annular.4. The scroll compressor according to claim 1 , wherein the cylindrical rim is secured to the midshell by ...

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Номер записи: 37
29-05-2014 дата публикации

VARIABLE CAPACITY COMPRESSOR WITH LINE-START BRUSHLESS PERMANENT MAGNET MOTOR

Номер: US20140147294A1
Автор: Cao Pingshan, Fargo Vincent, Li Xin, Liu Qiang
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A variable capacity compressor assembly () configured for variable capacity modulation includes a housing (), with a compressing mechanism () and a driving mechanism () disposed within the housing. The compressing mechanism includes compressing members () that are shiftable relative to one another between loaded and unloaded states. The driving mechanism includes a line-start brushless permanent magnet motor (). The line-start brushless permanent magnet motor includes a plurality of permanent magnets () that are mounted on, and extend generally axially along, a rotor core body () of the motor. Using the motor may reduce manufacture cost, maintain conveniently, and increase reliability. 1. A variable capacity compressor assembly configured to provide variable capacity modulation , said compressor assembly comprising:a housing;a compressing mechanism disposed within the housing and including first and second mechanical elements,said mechanical elements being shiftable relative to one another between a loaded state and an unloaded state; anda driving mechanism disposed within the housing and drivingly engaging at least one of the mechanical elements for causing the mechanical elements to move relative to one another, said driving mechanism including a line-start brushless permanent magnet motor,said motor including a stator and a rotor rotatable about an axis and spaced away from the stator,said rotor including a rotor core body and a plurality of permanent magnets mounted on the rotor core body,said permanent magnets extending generally axially along the rotor core body.2. The variable capacity compressor assembly as claimed in claim 1 , said mechanical elements comprising scroll members.3. The variable capacity compressor assembly as claimed in claim 2 ,said driving mechanism further including a drive shaft configured to rotate with the rotor,said drive shaft being operably coupled with one of the scroll members for causing the one of the scroll members to move in a ...

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Номер записи: 38
11-03-2021 дата публикации

Compressor and air conditioner having same

Номер: US20210071665A1
Автор: Ting YAN, Xiaofei Ye, Xumin Zhao
Принадлежит: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai

Disclosed are a compressor and an air conditioner having same. The compressor includes: a first-stage cylinder, including a first-stage compression chamber; and a second-stage cylinder, including a second-stage compression chamber and a gas storage chamber. Refrigerant flowing out of the first-stage compression chamber flows through the storage chamber and enters into the second-stage compression chamber, and a flow area of the gas storage chamber is larger than an area of a gas outlet of the first-stage compression chamber. The compressor effectively solves problems that power consumption of the compressor is increased and performance is reduced due to large resistance loss in the cylinder of the compressor.

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Номер записи: 39
22-03-2018 дата публикации

CO-ROTATING SCROLL COMPRESSOR HAVING BACK PRESSURE STRUCTURE

Номер: US20180080446A1
Автор: CHOI Yoonsung, Kim Jinho, Lee Byeongchul, YOO Byung-Kil
Принадлежит:

A co-rotating scroll compressor is provided in which pressure differences between inner and outer portions of a suction chamber are maintained, back pressures are applied to rear surfaces of end plates of a drive scroll and a driven scroll in directions in which the two scrolls are moved toward each other to prevent compression leakage of a fluid, and a lubricant oil is easily supplied to the two scrolls using the back pressures. The co-rotating scroll compressor may include pressure seals between the rear surfaces of the end plates of the drive scroll and the driven scroll and an inner wall of the suction chamber such that the two scrolls are pressed in directions to be moved toward each other by the back pressures, and the oil is supplied to rotary supports and close contact portions of the two scrolls using the back pressures. 1. A co-rotating scroll compressor , comprising:a frame including a suction chamber provided with a suction port;a first scroll and a second scroll having wraps disposed to face each other in the suction chamber and rotary shafts which are eccentric relative to each other, wherein the first scroll and the second scroll rotate relative to each other in a same direction, compress a fluid suctioned into the suction chamber, and discharge the compressed fluid to an outside of the suction chamber;a first compression seal formed between a rear surface of an end plate of the first scroll and an inner wall of the suction chamber; anda second pressure seal formed between a rear surface of an end plate of the second scroll and the inner wall of the suction chamber, wherein a pressure of the fluid discharged by the first scroll and the second scroll does not leak to a pressure of the fluid in the suction chamber due to the pressure seals, and wherein the discharge pressure is applied to the end plates to press the first scroll and the second scroll in directions in which the first scroll and the second scroll are moved toward each other.2. The co- ...

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Номер записи: 40
23-03-2017 дата публикации

COMPRESSOR, REFRIGERATION CYCLE APPARATUS, AND AIR CONDITIONER

Номер: US20170082329A1
Автор: Tsuchida Kazuchika
Принадлежит:

A compressor is configured such that an axis center of a rotating shaft for transmitting rotation of a rotor to a compressing unit for compressing a refrigerant is offset from a rotor center of the rotor, and, when the rotor is divided into, with respect to the rotor center, a first portion located on a side in a direction from the axis center to the rotor center and a second portion located on a side in a direction from the rotor center to the axis center, a magnetic force of the first portion is stronger than a magnetic force of the second portion. This configuration allows the rotor to generate non-uniform magnetic attractive forces during the rotation of the rotor and thereby can suppress vibration generated due to rotation of an eccentric portion of the compressing unit and reduce noise. 1. A compressor , whereinan axis center of a rotating shaft for transmitting rotation of a rotor to a compressing unit for compressing a refrigerant is offset from a radial direction center of the rotor, and whereinthe rotor includes, with respect to the radial direction center of the rotor, a first portion located on a side in a direction from the axis center to the radial direction center of the rotor and a second portion located on a side in a direction from the radial direction center of the rotor to the axis center.2. The compressor according to claim 1 , wherein the rotor is divided into two rotors split in an axial direction of the rotating shaft claim 1 ,the magnetic force of the first portion is stronger than the magnetic force of the second portion in each of the rotors, andthe first portion of one rotor and the first portion of the other rotor are disposed symmetrically with respect to the axis center of the rotating shaft.3. The compressor according to claim 2 , wherein a rotor formed such that the radial direction center of the rotor coincides with the axis center of the rotating shaft is disposed between the one rotor and the other rotor.4. The compressor ...

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Номер записи: 41
21-03-2019 дата публикации

Oscillating piston-type compressor

Номер: US20190085845A1
Автор: Chihiro ENDOU, Kazuhiro Furusho, Takazou Sotojima, Yukihiro Inada
Принадлежит: Daikin Industries Ltd

An oscillating piston compressor includes two oscillating compression units, and an introduction section configured to introduce an intermediate-pressure refrigerant into a compression chamber of each of the compression units. Each compression unit has a cylinder forming a cylinder chamber, a piston housed in the cylinder chamber, and a blade integrally formed with the piston. The piston rotates in the cylinder chamber while the blade oscillates. The two compression units are configured such that phases of the pistons are opposite to each other. The piston has a non-circular outer peripheral surface, and the cylinder chamber has an inner peripheral surface with a shape determined based on an envelope of the outer peripheral surface of the piston in rotation.

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Номер записи: 42
01-04-2021 дата публикации

HERMETIC COMPRESSOR

Номер: US20210095669A1
Автор: KANG Seoungmin, Lee Byeongchul, MOON Seokhwan
Принадлежит:

A hermetic compressor is provided that may include a vane that is inserted into a roller, rotates with the roller, and is pushed out toward an inner circumference of a cylinder by rotation of the roller to divide the compression chamber into a plurality of spaces. The vane may include a body having a sealing surface that contacts the inner circumference of the cylinder and inserted into the roller; and a guide that extends from an axial end of the body in a direction crossing a direction the vane slides out, and that is slidably inserted into a guide groove formed on at least one of the first bearing or the second bearing to restrain the vane from sliding out of the roller toward the inner circumference of the cylinder. 1. A hermetic compressor , comprising:a cylinder, an inner circumference of which is elliptical and forms a compression chamber;a first bearing and a second bearing provided on both sides of the cylinder and forming a compression chamber together with the cylinder;a roller that is attached to a rotary shaft supported by the first and second bearings, eccentric to the inner circumference of the cylinder, and varies a volume of the compression chamber while rotating; and a vane body inserted into the roller and having a sealing surface that contacts the inner circumference of the cylinder; and', 'a guide that extends from an axial end of the vane body in a direction crossing a direction in which the vane slides out of the roller, wherein the guide is slidably inserted into a guide groove formed on at least one of the first bearing or the second bearing to restrain the vane from sliding out of the roller toward the inner circumference of the cylinder, wherein the guide includes a first guide portion and a second guide portion which extend to either side, respectively, with respect to the vane body, and wherein a circumferential length of the second guide portion is longer than a circumferential length of the first guide portion with respect to a ...

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Номер записи: 43
01-04-2021 дата публикации

ROTARY COMPRESSOR

Номер: US20210095671A1
Автор: Shimizu Takashi
Принадлежит:

A rotary compressor includes a compression mechanism having a cylinder, a piston, and a Helmholtz muffler. The Helmholtz muffler has a resonance chamber in the compression mechanism and a communication groove formed on an end face of the cylinder to connect the cylinder and resonance chambers. The communication groove is open at the end face of the cylinder and has a pair of side wall portions and a bottom wall portion between the side wall portions. Each side wall portion has a first portion adjacent an open end of the communication groove and a second portion adjacent the bottom wall portion. A surface of the first portion is a flat or bowed surface. A surface of the second portion is a bowed surface having a predetermined curvature so as to be connected to the surface of the first portion and a surface of the bottom wall portion. 1. A rotary compressor comprising:a compression mechanism including a cylinder having a cylinder chamber, a piston rotating eccentrically inside the cylinder chamber, and a Helmholtz muffler,the Helmholtz muffler having a resonance chamber provided in the compression mechanism, and a communication groove formed on an end face of the cylinder to connect the cylinder chamber and the resonance chamber together,the communication groove being a bottomed groove that is open at the end face of the cylinder, the communication groove having a pair of side wall portions and a bottom wall portion located between the side wall portions,the side wall portions each having a first portion adjacent an open end of the communication groove, and a second portion adjacent the bottom wall portion of the communication groove, anda surface of the first portion being formed as a flat or bowed surface, a surface of the second portion being formed as a bowed surface having a predetermined curvature so as to be connected to the surface of the first portion and a surface of the bottom wall portion.2. The rotary compressor of claim 1 , whereinthe surfaces of the ...

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Номер записи: 44
06-04-2017 дата публикации

COMPRESSOR AND REFRIGERATION CYCLE APPARATUS

Номер: US20170097176A1
Автор: Yamashita Koji
Принадлежит:

A compressor is configured to form a refrigerant circuit using refrigerant containing a substance having such a property as to cause a disproportionation reaction, and includes a shell serving as an outer shell, a compression chamber installed inside the shell, the compression chamber being configured to compress the sucked refrigerant, cause the compressed refrigerant to flow into the shell to place the shell under a high-pressure refrigerant atmosphere, and discharge the compressed refrigerant externally, and a motor configured to feed power to the compressor. With the configuration described above, a disproportionation reaction is made unlikely to occur. As a result, the substance having such a property as to cause a disproportionation reaction can be used safely as the refrigerant. 1. A compressor configured to form a part of a refrigerant circuit circulating refrigerant , the compressor comprising:a hermetic container serving as an outer shell;a compression chamber installed inside the hermetic container, the compression chamber being configured to compress the refrigerant containing a substance having such a property as to cause a disproportionation reaction, which is sucked, cause the compressed refrigerant to flow into the hermetic container to place the hermetic container under a high-pressure refrigerant atmosphere, and discharge the compressed refrigerant externally; anda motor configured to feed power to the compression chamber,{'sup': '10', 'refrigerating machine oil having miscibility with the refrigerant and having a volume resistivity at 20 degrees Celsius of 2×10Ω·m or more being filled.'}2. The compressor of claim 1 , wherein the refrigerant in a two-phase state is sucked.3. The compressor of claim 2 , wherein the refrigerant in the two-phase state is quality of 0.8 or higher and 0.99 or lower.4. The compressor of claim 1 , wherein an insulating material for the motor comprises a resin material.5. The compressor of claim 4 , wherein one or more ...

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Номер записи: 45
08-04-2021 дата публикации

COMPRESSOR

Номер: US20210102539A1
Автор: IYANAGI Tomohiro
Принадлежит:

In a compressor, a sufficient insulation distance is ensured between a motor and a compression mechanism, and the amount of lubricating oil that flows out with refrigerant discharged from the compressor is reduced, while the volume of the compressor is reduced. The compressor includes: a compression mechanism that compresses refrigerant; a motor unit above the compression mechanism to drive the compression mechanism; a shell that houses the compression mechanism and the motor unit; and a lower insulating member between the compression mechanism and the motor unit. The motor unit includes a stator fixed to the shell, and a rotor spaced from an inner circumferential surface of the stator by a predetermined gap. The rotor has a rotor passage that causes spaces above and below the motor unit to communicate with each other, and the lower insulating member is in a region outward of the inner circumferential surface of the stator. 1. A compressor comprising:a compression mechanism configured to compress refrigerant;a motor unit provided above the compression mechanism, and configured to drive the compression mechanism;a shell that houses the compression mechanism and the motor unit; anda lower insulating member provided between the compression mechanism and the motor unit, a stator fixed to the shell, and', 'a rotor spaced from an inner circumferential surface of the stator by a predetermined gap, and, 'wherein the motor unit includes'}wherein the lower insulating member is located in a region outward of the inner circumferential surface of the stator and in contact with an upper surface of the compression mechanism.2. The compressor of claim 1 ,wherein the lower insulating member has an end face that is adjacent to the motor unit, and that has a width at least equal to a length of part of a coil included in the stator, the part of the coil extending between an inner circumferential edge and an outer circumferential edge of the stator.3. The compressor of claim 1 , wherein ...

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Номер записи: 46
19-04-2018 дата публикации

COMPRESSOR WITH LIQUID INJECTION COOLING

Номер: US20180106255A1
Автор: "OHANLEY HARRISON", NELSON ANDREW, PITTS JEREMY, SANTEN JOHANNES, SANTOS PEDRO, WALTON JOHN, WESTWOOD MITCHELL
Принадлежит:

A positive displacement rotary compressor is designed for near isothermal compression, high pressure ratios, high revolutions per minute, high efficiency, mixed gas/liquid compression, a low temperature increase, a low outlet temperature, and/or a high outlet pressure. Liquid injectors provide cooling liquid that cools the working fluid and improves the efficiency of the compressor. A gate moves within the compression chamber to either make contact with or be proximate to the rotor as it turns. 2. The method of claim 1 , wherein the cooling liquid comprises a liquid hydrocarbon.3. The method of claim 1 , further comprising claim 1 , after expelling the liquid out of the outlet port claim 1 , recirculating at least a portion of the expelled liquid back into the rotor casing via the at least one liquid injector.4. The method of claim 3 , wherein the recirculating occurs without the use of a pump.5. The method of claim 3 , further comprising using a pump to recirculate the expelled liquid back into the rotor casing via the at least one liquid injector.6. The method of claim 1 , wherein the at least one liquid injector is positioned to inject liquid into an area within the rotor casing volume where compression occurs during operation of the compressor.7. The method of claim 1 , wherein the injecting occurs during the compressor's highest rate of compression in terms of volume change per time.8. The method of claim 1 , wherein the injecting occurs during the compressor's highest rate of compression in terms of volume change per degree of rotation of the rotor.9. The method of claim 1 , wherein injected cooling liquid is atomized when injected claim 1 , absorbs heat claim 1 , and is directed toward the outlet port.10. The method of claim 1 , wherein the compressor further comprises a gate having a first end and a second end claim 1 , wherein the gate is operable to move within the rotor casing to locate the first end proximate to the rotor as the rotor turns claim 1 , and ...

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Номер записи: 47
30-04-2015 дата публикации

ROTARY COMPRESSOR WITH VAPOR INJECTION SYSTEM

Номер: US20150118091A1
Автор: IGNATIEV Kirill M., PEREVOZCHIKOV Michael M.
Принадлежит:

A compressor may include a crankshaft, first and second cylinder housings, first and second rotors, a divider plate, and first and second valves. The crankshaft includes first and second eccentric portions. The cylinder housings define cylindrical recesses. The rotors are disposed within respective cylindrical recesses and engage respective eccentric portions of the crankshaft. The first rotor and the first cylindrical recess define a first compression chamber therebetween. The second rotor and the second cylindrical recess define a second compression chamber therebetween. The divider plate may be disposed between the cylinder housings and may include first and second fluid openings in communication with the first and second compression chambers. The valves may be moveable relative to the divider plate between a first position allowing fluid flow through the fluid openings and a second position restricting fluid flow through the fluid openings. 1. A compressor comprising:a crankshaft including an eccentric portion;a cylinder housing defining a cylindrical recess through which the crankshaft extends;a rotor disposed within said cylindrical recess and engaging said eccentric portion of said crankshaft for movement with said crankshaft relative to said cylindrical recess, said rotor and a circumferential surface of said cylindrical recess defining a compression chamber therebetween;a suction opening providing fluid at a first pressure to said cylindrical recess;a discharge opening receiving compressed fluid from said compression chamber; anda fluid-injection opening providing fluid at a second pressure to said compression chamber, said second pressure being higher than said first pressure, said fluid-injection opening and said discharge opening being at least partially aligned with each other in a direction parallel to a rotational axis of said crankshaft.2. The compressor of claim 1 , wherein said fluid-injection opening is formed in said cylinder housing.3. The ...

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Номер записи: 48
07-05-2015 дата публикации

Rotary compressor

Номер: US20150125322A1
Автор: Wen-Fu Chiang
Принадлежит: Jia Huei Microsystem Refrigeration Co Ltd

A rotary compressor includes a motor, an eccentric shaft and a cylinder installed in a casing. The motor includes a rotor and a stator. The eccentric shaft rotates with the rotor and turns around in the cylinder. The cylinder divides the casing into a high pressure chamber and a low pressure chamber, and the high pressure chamber is disposed between the motor and cylinder, and the low pressure chamber is disposed at the bottom of the cylinder. An isolating element is installed between the cylinder and the casing for isolating the high pressure chamber and the low pressure chamber. The isolating element includes at least one reflowing hole penetrated through the isolating element and interconnected between the high pressure chamber and the low pressure chamber for isolating high and low pressures effectively.

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Номер записи: 49
12-05-2016 дата публикации

ROTARY COMPRESSOR

Номер: US20160131135A1
Автор: KOMINE Kenji, Tanaka Junya
Принадлежит: FUJITSU GENERAL LIMITED

A rotary compressor includes: a vertically-positioned airtight compressor housing having an upper section including a discharge portion of a refrigerant, and a lower section including an inlet unit of the refrigerant and storing lubricant oil; a compressing unit, disposed in the lower section, compressing the refrigerant sucked in via the inlet unit and discharging the refrigerant from the discharge portion; a motor, disposed in the upper section, driving the compressing unit via a rotation shaft; and an accumulator attached to the compressor housing and connected to the inlet unit. Inside the accumulator and/or the compressor housing, silicon dioxide having a crystal structure containing a vacancy with a diameter equal to or less than a diameter of a water molecule or a composite including silicon dioxide having a crystal structure containing a vacancy with a diameter equal to or less than that of the water molecule is placed. 1. A rotary compressor comprising:a vertically-positioned airtight compressor housing having an upper section in which a discharge portion of a refrigerant is provided and a lower section in which an inlet unit of the refrigerant is provided and lubricant oil is stored;a compressing unit that is disposed in the lower section of the compressor housing and that compresses the refrigerant sucked in via the inlet unit and discharges the refrigerant from the discharge portion;a motor that is disposed in the upper section of the compressor housing and drives the compressing unit via a rotation shaft; andan accumulator that is attached to a side section of the compressor housing and is connected to the inlet unit of the refrigerant,wherein, inside the accumulator and/or inside the compressor housing, silicon dioxide having a crystal structure which contains a vacancy with a diameter equal to or less than a diameter of a water molecule, or a composite which includes silicon dioxide having a crystal structure which contains a vacancy with a diameter ...

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Номер записи: 50
12-05-2016 дата публикации

ROTARY COMPRESSOR

Номер: US20160131137A1
Автор: KOMAI Yuji, MOROZUMI Naoya, YAHABA Shingo
Принадлежит:

A rotary compressor includes: a vertically-positioned airtight compressor housing, in an upper section of which a discharge unit of a refrigerant is provided and in a lower section of which an inlet unit of the refrigerant is provided and lubricant oil is stored; and a lubricating mechanism supplying lubricant oil stored in the lower section of the compressor housing to a sliding portion of a compressing unit through a vertical lubricating hole and a horizontal lubricating hole of a rotation shaft. The horizontal lubricating hole of the lubricating mechanism is formed between the same direction as an eccentric direction of an eccentric portion provided on the rotation shaft and causes an annular piston of the compressing unit making an orbital motion in a cylinder and a 80° phase shifted direction from the same direction as the eccentric direction in a direction opposite to a rotation direction of the rotation shaft. 1. A rotary compressor comprising:a vertically-positioned airtight compressor housing, in an upper section of which a discharge unit of a refrigerant is provided and in a lower section of which an inlet unit of the refrigerant is provided and lubricant oil is stored;a compressing unit that is disposed in the lower section of the compressor housing and that compresses the refrigerant sucked in via the inlet unit and discharges the refrigerant from the discharge unit;a motor that is disposed in the upper section of the compressor housing and drives the compressing unit via a rotation shaft; anda lubricating mechanism that supplies the lubricant oil stored in the lower section of the compressor housing to a sliding portion of the compressing unit through a vertical lubricating hole and a horizontal lubricating hole of the rotation shaft,wherein the horizontal lubricating hole of the lubricating mechanism is formed between the same direction as an eccentric direction of an eccentric portion that is provided on the rotation shaft and causes an annular piston ...

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Номер записи: 51
10-05-2018 дата публикации

VANE OIL PUMP

Номер: US20180128107A1
Автор: Hattori Yuji, Inagaki Takafumi, Moriyama Shuji, NOBORIO Akihiko, OHGATA Yusuke, SOGA Yoshinobu, TUKUDA Kazumichi
Принадлежит:

A vane oil pump includes a rotor including a plurality of slits, a housing having an inner circumferential cam surface such that a first pump unit and a second pump unit taking in and discharging oil in accordance with rotation of the rotor are separately disposed in a rotational direction of the rotor, a plurality of vanes respectively fitted in the slits of the rotor, and a pressure adjusting device configured to adjust a second discharge pressure of the second pump unit to a lower pressure than a first discharge pressure of the first pump unit. A back pressure groove is disposed on the housing and is provided to supply back pressure oil to a bottom portion of each slit. 1. A vane oil pump comprising:a rotor including a plurality of slits open on an outer circumferential surface of the rotor;a housing having an inner circumferential cam surface, the housing accommodating the rotor inside the housing such that the outer circumferential surface of the rotor faces the inner circumferential cam surface, the housing being configured to allow rotation of the rotor with respect to the housing, the inner circumferential cam surface of the housing being configured to have a diameter dimension from a rotational axis of the rotor, and the diameter dimension being configured to increase or decrease in a rotational direction of the rotor such that a first pump unit and a second pump unit taking in and discharging oil in accordance with rotation of the rotor are separately disposed in the rotational direction of the rotor;a plurality of vanes respectively fitted in the slits of the rotor, a tip end portion of each vane being radially disposed to protrude from the opening of each slit of the rotor, and the vanes being configured to advance or retract with respect to the slits in a radial direction of the rotor; anda pressure adjusting device configured to adjust a second discharge pressure of the second pump unit to a lower pressure than a first discharge pressure of the first ...

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Номер записи: 52
11-05-2017 дата публикации

Fluid Ring Compressor

Номер: US20170130718A1
Автор: Kösters Heiner, Lähn Stefan, Wickbold Jorg, Wrage Inke
Принадлежит:

A fluid ring compressor comprises a first single-acting compression stage having a first impeller eccentrically mounted in a housing and a second single-acting compression stage having a second impeller eccentrically mounted in a housing. The first compression stage and the second compression stage are separated from one another by a sealing gap. The sealing gap is arranged between a suction section of the first compression stage and a suction section of the second compression stage. 1. A fluid ring compressor having a first single-acting compression stage , which has a first impeller eccentrically mounted in a housing , and a second single-acting compression stage , which has a second impeller eccentrically mounted in a housing , wherein the first compression stage and the second compression stage are separated from one another by a sealing gap , characterized in that the sealing gap is arranged between a suction segment of the first compression stage and a suction segment of the second compression stage.2. The fluid ring compressor as claimed in claim 1 , characterized in that the first compression stage has a first control disk claim 1 , in that the second compression stage has a second control disk claim 1 , wherein the first impeller and the second impeller are arranged between the first control disk and the second control disk.3. The fluid ring compressor as claimed in claim 1 , wherein the first impeller has chambers and the second impeller has chambers characterized in that a wall claim 1 , which rotates with the impellers claim 1 , is formed between the chambers of the first impeller and the chambers of the second impeller.4. The fluid ring compressor as claimed in claim 3 , characterized in that the sealing gap is arranged between a circumferential surface of the wall and an end surface of the housing.5. The fluid ring compressor as claimed in claim 1 , characterized in that the housing has a duct claim 1 , which extends from an outlet side of the first ...

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Номер записи: 53
19-05-2016 дата публикации

ROTARY COMPRESSOR

Номер: US20160138593A1
Автор: KOMINE Kenji, Tanaka Junya
Принадлежит:

A rotary compressor includes a compressing unit including: an annular cylinder; an end plate having a bearing unit, and closing an end portion of the cylinder; an annular piston fitted in a rotation shaft in the bearing unit, performing an orbital motion inside the cylinder, and forming an operation chamber with the cylinder inner wall; and a vane protruding from a groove of the cylinder to the operation chamber, coming into contact with the annular piston, and partitioning the operation chamber into an inlet chamber and a compression chamber. The vane is formed of steel and has a diamond-like carbon layer on a sliding surface with respect to the annular piston. The annular piston is formed of Ni—Cr—Mo cast iron to which 0.15 wt % to 0.45 wt % of phosphorus is added, or formed of cast iron or steel, and has an iron nitride layer on its outer circumferential surface. 1. A rotary compressor comprising:a vertically-positioned airtight compressor housing having an upper section in which a discharge portion of a refrigerant is provided and a lower section in which an inlet unit of the refrigerant is provided on a side surface thereof;a compressing unit that is disposed in the lower section of the compressor housing, that includes an annular cylinder, an end plate which has a bearing unit and a discharge valve unit and closes an end portion of the cylinder, an annular piston which is fit in an eccentric portion of a rotation shaft supported in the bearing unit, performs an orbital motion inside the cylinder along a cylinder inner wall of the cylinder, and forms an operation chamber together with the cylinder inner wall, and a vane which protrudes from the inside of a vane groove of the cylinder to the inside of the operation chamber, comes into contact with the annular piston, and partitions the operation chamber into an inlet chamber and a compression chamber, and that performs suction of the refrigerant via the inlet unit and discharges the refrigerant from the ...

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Номер записи: 54
07-08-2014 дата публикации

Rotary systems lubricated by fluid being processed

Номер: US20140219845A1
Автор: David Phillip Winter, Jason James Hugenroth, Raziel ALON
Принадлежит: Caire Inc

Rotary systems are described, which can include at least one of compressors and vacuum pumps. Each rotary system includes a corresponding piston that rotates in an orbital motion around a respective eccentric of a shaft in order to either compress fluid or function as a vacuum pump. Multiple rotary systems can be executed on parallel on a single shaft such that these rotary systems are powered by a single motor. Various components of the rotary systems are coated with an abradable coating, which minimizes friction when these components come in contact with each other. The minimized friction minimizes the wear and tear of these components. Each rotary system can be lubricated by only the fluid being processed (for example, compressed or vacuumed) by that rotary system. The use of the fluid being processed for lubrication and the abradable coatings eliminate a need for another lubricant for lubricating the rotary system.

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Номер записи: 55
07-08-2014 дата публикации

ROTARY COMPRESSOR

Номер: US20140219851A1
Автор: Hikichi Takumi, SHII KENTARO, SHOYAMA TADAYOSHI, WADA Masanobu
Принадлежит: Panasonic Corporation

A rotary compressor (A) includes a closed casing (), a compression mechanism (), a lower end-face plate (), and a communication hole (). An oil reservoir () is formed at the bottom of the closed casing (). The lower end-face plate () divides the oil reservoir () into a plurality of sections () and () in the vertical direction. The plurality of sections of the oil reservoir () communicate with each other through the communication hole (). The communication hole () is located on the same side as a discharge port () of the compression mechanism () with respect to a reference plane (H). 1. A rotary compressor comprising:a closed casing comprising an oil reservoir;a compression mechanism comprising: a cylinder; a piston disposed inside the cylinder; a vane that partitions a space formed between the cylinder and the piston into a suction chamber and a compression-discharge chamber; a suction port through which a working fluid is introduced into the suction chamber; and a discharge port through which the working fluid is discharged from the compression-discharge chamber, the compression mechanism being disposed inside the closed casing in such a manner as to be immersed in an oil held in the oil reservoir;a convection suppressing portion dividing the oil reservoir into a plurality of sections in a vertical direction; anda communication path that allows the plurality of sections of the oil reservoir to communicate with each other, whereinthe communication path is located on the same side as the discharge port with respect to a reference plane, the reference plane being a plane including a central axis of the cylinder and passing through a contact line that is formed between an inner circumferential surface of the cylinder and an outer circumferential surface of the piston when the vane protrudes maximally toward the central axis of the cylinder.2. The rotary compressor according to claim 1 , wherein the communication path is a communication hole formed in the convection ...

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Номер записи: 56
17-05-2018 дата публикации

ROTARY COMPRESSOR

Номер: US20180135630A1
Автор: Inoue Akira, IZUMI Yasuyuki, UEDA Kenshi, YAHABA Shingo
Принадлежит:

In a rotary compressor, a refrigerant path hole communicates with a lower discharge chamber concave portion while at least a part thereof overlaps the lower discharge chamber concave portion, is positioned between a lower vane groove and a first insertion hole in a lower cylinder, and is configured of a plurality of holes which are disposed between the upper vane groove and the first insertion hole in the upper cylinder, and a sectional area of a cross section which is closest to the lower vane groove and the upper vane groove of the plurality of holes is the smallest compared to the sectional area of the cross section of the other holes. 1. A rotary compressor which includes a sealed vertically-placed cylindrical compressor housing which is provided with a discharge pipe that discharges a refrigerant in an upper portion thereof , which is provided with an upper inlet pipe and a lower inlet pipe that suction the refrigerant in a lower portion of a side surface thereof , an accumulator which is connected to the upper inlet pipe and the lower inlet pipe that are fixed to a side portion of the compressor housing , a motor which is disposed in the compressor housing , and a compressing unit which is disposed below the motor in the compressor housing , is driven by the motor , suctions and compresses the refrigerant from the accumulator via the upper inlet pipe and the lower inlet pipe , and discharges the refrigerant from the discharge pipe , and in which the compressing unit includes an annular upper cylinder and an annular lower cylinder , an upper end plate which blocks an upper side of the upper cylinder and a lower end plate which blocks a lower side of the lower cylinder , an intermediate partition plate which is disposed between the upper cylinder and the lower cylinder and blocks the lower side of the upper cylinder and the upper side of the lower cylinder , a rotation shaft which is supported by a main bearing unit provided on the upper end plate and a sub- ...

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Номер записи: 57
24-05-2018 дата публикации

SCROLL COMPRESSOR

Номер: US20180142687A1
Автор: ISHIZONO Fumihiko, KAKUDA Masayuki, TATSUWAKI Kohei
Принадлежит:

A scroll compressor includes a fixed scroll and an orbiting scroll, which are made of materials having different strengths and which include respective scroll laps. The scroll lap of the fixed scroll and the orbiting scroll having a lower material strength has a thickness satisfying tl=2aα, where tl represents scroll lap thickness, a represents basic circle radius, and α represents phase angle. The scroll lap of the fixed scroll and the orbiting scroll having a higher material strength has a thickness satisfying th=2aβ, where th represents scroll lap thickness, a represents basic circle radius, and β represents phase angle. The scroll lap thickness th of the fixed scroll and the orbiting scroll having the higher material strength is set to be less than the scroll lap thickness tl of the fixed scroll and the orbiting scroll having the lower material strength. 211. The scroll compressor of claim 1 , wherein when σ represents stress generated at a base of the scroll lap of the one of the fixed scroll and the orbiting scroll having the lower material strength claim 1 , and σh represents stress generated at a base of the scroll lap of the one of the fixed scroll and the orbiting scroll having the higher material strength claim 1 , the fixed scroll and the orbiting scroll have respective scroll lap thicknesses adjusted to make a ratio between the stress σ and the stress σh equal to or less than a ratio between the lower material strength and the higher material strength.3. The scroll compressor of claim 1 , wherein the material of the orbiting scroll is an aluminum alloy claim 1 , and the material of the fixed scroll is a cast-iron-based material.4. The scroll compressor of claim 1 , wherein the scroll lap thickness th of the one of the fixed scroll and the orbiting scroll having the higher material strength is equal to or less than 0.8 times the scroll lap thickness tl of the one of the fixed scroll and the orbiting scroll having the lower material strength. The present ...

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Номер записи: 58
04-06-2015 дата публикации

Rotor Assembly for Rotary Compressor

Номер: US20150152867A1
Автор: Fleger Darryl, Gibbs Robert David
Принадлежит: Randell Technologies Inc.

A compressor having a rotor assembly within which a rotor is rotated on an eccentric shaft in a sealed chamber. Two or more intake ports are provided that open into the sealed chamber and two or more exhaust ports are provided with one way valves, to permit compressed gas to exit the sealed chamber. The geometry of the rotor and sealed chamber and eccentric drive are such that apices of the rotor remain in contact with a peripheral wall of the sealed chamber as the rotor rotates and apex seals are provided on the apices of the rotor to prevent leakage of the gas around the apices of the rotor. In a preferred embodiment the rotor is a multi-lobed rotor orbiting within a trochoidal chamber. 1. A compressor comprising a rotor assembly within which a multi-lobed rotor is rotated on an eccentric shaft in a sealed trochoidal chamber , two or more intake ports are provided that open into the sealed chamber , two or more exhaust ports are provided with one way valves , to permit compressed gas to exit the sealed chamber , the geometry of the rotor and sealed chamber and eccentric drive are such that the ratio of the distance between the centre of the rotor and the apices of the rotor to the amount of eccentricity in the eccentric shaft (R/e ratio) is about 10:1 and apices of the rotor remain in contact with a peripheral wall of the sealed chamber as the rotor rotates and apex seals are provided on the apices of the rotor to prevent leakage of the gas around the apices of the rotor.2. A compressor according to claim 1 , wherein the rotor is a three lobed rotor journalled on a shaft and having a ring gear driven by timing pinion claim 1 , the gear ratio of the ring gear to the timing pinion being three to one.3. A compressor according to claim 1 , wherein the apex seals are compression seals that remain in contact with the peripheral wall of the sealed chamber as the rotor rotates.4. A compressor according to claim 3 , wherein the apex seals have an apex seal spring to ...

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Номер записи: 59
02-06-2016 дата публикации

Motor-driven compressor

Номер: US20160153452A1
Автор: Hiroki Nagano, Tatsushi Mori
Принадлежит: Toyota Industries Corp

Provided is a motor-driven compressor capable of realizing reduction in manufacturing costs. A compression mechanism of the motor-driven compressor according to the present invention includes a rotor rotatable by a rotation shaft and provided with a plurality of vane grooves, a plurality of vanes disposed advanceably and retractably in the respective vane grooves, a cup member formed into a bottomed cylindrical shape and enclosing the rotor, and a side plate closing an opening of the cup member The contour of the compressor is formed by a first housing and a second housing, and a suction pressure region in the first housing is hermetically closed from outside at a position where the first housing and the second housing are joined together.

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Номер записи: 60
22-09-2022 дата публикации

Rotary compressor having reciprocator and support

Номер: US20220299029A1
Автор: Masahide Higuchi, Takuya ISHINO, Yudai IWAI
Принадлежит: Daikin Industries Ltd

A rotary compressor includes a casing including an oil reservoir configured to store lubricating oil inside, and a compression mechanism including a reciprocator and a support. The reciprocator defines a compression chamber and reciprocating along a first direction. The support has a support surface configured to support the reciprocator. The support surface includes a first groove and a second groove formed therein, The first groove extends along a second direction intersecting with the first direction and is configured to transfer the lubricating oil to the second groove, The second groove extends from a center of the first groove toward the compression chamber along the first direction.

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Номер записи: 61
22-09-2022 дата публикации

Compressor and compressor unit

Номер: US20220299138A1
Автор: Kenji Koyama, Shoujirou NAKA
Принадлежит: Daikin Industries Ltd

A compressor is configured to compress a fluid. The compressor includes a first casing and at least one first pipe. The first casing is electrically conductive. The at least one first pipe is electrically conductive. The at least one first pipe is fixed to the first casing with a first insulator interposed therebetween.

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Номер записи: 62
11-09-2014 дата публикации

HERMETIC-TYPE COMPRESSOR AND REFRIDGERATION CYCLE APPARATUS

Номер: US20140250937A1
Автор: Hirayama Takuya
Принадлежит: TOSHIBA CARRIER CORPORATION

A compression mechanism portion housed in a closed case is provided with a partition plate located between a first cylinder and a second cylinder. The compression mechanism includes a first bearing discharge port formed to a first bearing and a first partition plate discharge port formed to the partition plate as discharge ports for discharging working fluid compressed in a first cylinder chamber, and also includes, as discharge port for discharging working fluid compressed in a second cylinder chamber, a second bearing discharge port formed to a second bearing and a second partition plate discharge port formed to the partition plate. A cross-sectional area of the first partition plate discharge port is formed to be smaller than a cross-sectional area of the first bearing discharge port, and a cross-sectional area of the second partition plate discharge port is formed to be smaller than a cross-sectional area of the second bearing discharge port.

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Номер записи: 63
15-06-2017 дата публикации

ROTARY COMPRESSOR HAVING TWO CYLINDERS

Номер: US20170167487A1
Автор: Karino Tsuyoshi, Nakai Hiroaki, Oyagi Shingo, Shiotani Yu, Yoshida Hirofumi
Принадлежит:

A rotary compressor having two cylinders includes crankshaft having first eccentric portion and second eccentric portion connected to each other by connecting portion. The rotary compressor further includes two compressive elements that compress working fluid in cylinder as first piston inserted over first eccentric portion eccentrically rotates in accordance with rotation of crankshaft. Further, first piston inserted over first eccentric portion undergoes assembly by being inserted over first eccentric portion through second eccentric portion. Further, a releasing portion is provided at each of outer diameter portions of first eccentric portion and second eccentric portion. 1. A rotary compressor having two cylinders , comprising:a crankshaft having a first eccentric portion and a second eccentric portion connected to each other by a connecting portion; andtwo compressive elements that compress working fluid in a cylinder as a first piston inserted over the first eccentric portion eccentrically rotates in accordance with rotation of the crankshaft,wherein the first piston inserted over the first eccentric portion undergoes assembly by being inserted over the first eccentric portion through the second eccentric portion,a releasing portion is provided at each of outer diameter portions of the first eccentric portion and the second eccentric portion on the connecting portion side,Hc-c Подробнее

Номер записи: 64
29-09-2022 дата публикации

APPARATUSES FOR COMPRESSING A GASEOUS FLUID AND METHOD FOR OPERATING SUCH A DEVICE

Номер: US20220307503A1
Автор: Dursun Kadir, Friedl Michael, Gutberlet Dirk
Принадлежит:

An apparatus comprising a stator and a rotor which are arranged inside a housing extending along a common longitudinal axis, wherein the stator encloses the rotor in a radial direction. A space is formed between an inside of a wall of the housing and an outside of a wall of the stator. The housing has a first housing element and a second housing element that are arranged with their contact surfaces aligned with each other thus sealing the housing. Thereby, a sealing element is arranged between the contact surfaces of the housing elements. The sealing element has the shape of an annular disc with a circumferential form and at least one sealing area. In the circumferential direction, the form corresponds to a contour of the contact surfaces. The sealing area is designed to at least partially enclose the space. 126-. (canceled)27. An apparatus for compressing a gaseous fluid , comprising:a stator and a rotor which are arranged in such a way as to extend along a common longitudinal axis within a housing such that the stator encloses the rotor in a radial direction, and in that a space is formed between an inner side of a wall of the housing and an outer side of a wall of the stator, wherein the housing is formed from a first housing element and a second housing element, which are each arranged with mutually aligned contact surfaces closing the housing and resting against one another, wherein a sealing element is arranged between the contact surfaces, wherein the sealing element has a shape of an annular disc with a circumferentially circumferential form and at least one sealing area, wherein the form corresponds in a circumferential direction to a contour of the contact surfaces and the sealing area at least partially closing the space.28. The apparatus according to claim 27 , wherein the sealing element has the shape of an annular disc with a constant width claim 27 , wherein an outer diameter of the sealing element substantially corresponds to an outer diameter of the ...

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Номер записи: 65
29-09-2022 дата публикации

COMPRESSOR

Номер: US20220307505A1
Автор: Masuda Masanori
Принадлежит:

A compressor includes a drive shaft having a main shaft and an eccentric portion, and a compression mechanism having a fitted tubular portion into which a fitted shaft portion of the drive shaft is fitted. The fitted shaft portion and the fitted tubular portion slide relative to each other with an oil film interposed between. The fitted tubular portion has first and second sliding surfaces formed as portions of an inner peripheral surface of the fitted tubular portion in the circumferential direction. The second sliding surface has a smaller axial width than the first sliding surface. A sliding portion between the fitted shaft portion and the fitted tubular portion has a gap adjacent to the second sliding surface into which a lubricating oil flows, and an oil retainer to keep the lubricating oil in the gap from flowing out toward an end surface of the fitted tubular portion. 1. A compressor , comprising:a drive shaft having a main shaft and an eccentric portion that is eccentric relative to a center of the main shaft; anda compression mechanism having a fitted tubular portion into which a fitted shaft portion of the drive shaft is fitted,the fitted shaft portion of the drive shaft and the fitted tubular portion sliding relative to each other with an oil film interposed therebetween, a first sliding surface formed as a portion, in a circumferential direction, of an inner peripheral surface of the fitted tubular portion, and', 'a second sliding surface formed as an other portion of the inner peripheral surface in the circumferential direction, the second sliding surface having a smaller axial width than an axial width of the first sliding surface,, 'the fitted tubular portion having'} a gap adjacent to the second sliding surface in an axial direction and into which a lubricating oil flows, and', 'an oil retainer configured to keep the lubricating oil in the gap from flowing out toward an end surface of the fitted tubular portion., 'a sliding portion between the fitted ...

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Номер записи: 66
21-05-2020 дата публикации

VANE COMPRESSOR WITH AN IMPROVED LUBRICATION SYSTEM

Номер: US20200158107A1
Автор: Contaldi Giulio, Murgia Stefano
Принадлежит:

Vane compressor comprising a stator, a rotor housed in the stator and provided with a body internally tangent to a side wall of the stator and with a plurality of vanes sliding in respective seats formed in the body of the rotor and pushed in a centrifugal direction to sealingly cooperate with the side wall of the stator, and a lubrication system comprising in combination one or more solid jet nozzles, arranged in the side wall of the stator to direct the solid jet towards the rotor, and at least one axial spray nozzle. 1. Vane compressor comprising:{'b': 5', '21', '23, 'a stator () having an axis (A) and provided with at least one intake port () and at least one delivery port (),'}{'b': 10', '5', '5', '10', '10', '8', '5', '13', '14', '12', '10', '8', '5', '13', '17, 'a rotor () housed in the stator () and having an axis (B) parallel to the axis (A) of the stator (), the rotor () being provided with a body () internally tangent to a side wall () of the stator () and with a plurality of vanes () sliding in respective seats () formed in the body () of the rotor () and pushed in a centrifugal direction so as to sealingly cooperate with the side wall () of the stator (), the vanes () delimiting in pairs with one another a plurality of compartments () having different volumes;'}{'b': 24', '25', '8', '5', '10, 'a lubrication system () comprising at least one solid jet nozzle () arranged in the side wall () of the stator () to direct the solid jet towards the rotor (),'}{'b': 26', '25', '26', '17', '5', '10, 'characterised by comprising at least one axial spray nozzle () in combination with said at least one solid jet nozzle (), said axial spray nozzle () being configured to inject a spray jet into the compartments () in an axial direction with respect to the stator () and to the rotor ().'}2262510. The compressor as claimed in claim 1 , characterised in that said axial spray nozzle () is arranged upstream of the solid jet nozzle () with reference to the rotation ...

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Номер записи: 67
21-05-2020 дата публикации

Oil Separation Structure and Compressor

Номер: US20200158113A1
Автор: Bl Yushi, CAO CONG, HUANG Ziyuan, Liu Hua, MENG Qiangjun, ZHANG Helong, Zhang Tianyi
Принадлежит:

Disclosed are an oil separation structure () and a compressor. The oil separation structure () includes a housing () and a filtering screen (). A core () is disposed at a center of the housing (), and a plurality of guiding members () for guiding gas flow are provided along circumferential directions of the core (). The filtering screen () is disposed on a periphery of the housing (), and a cavity () is formed between the filtering screen () and the core (). The housing () is provided with a gas inlet () and a gas outlet () which are in communication with the cavity (), and the gas inlet () is configured to introduce the gas flow into the cavity (); the guiding members () are configured to guide the gas flow to rotationally flow around the core (), and the gas outlet () is configured to discharge the gas flow from the cavity (). With the oil separation structure (), the gas flow in the cavity () can rotationally flow around the core () in multiple directions under guidance of the guiding members (), and multiple impacts occur during rotational flow of the gas flow, so that oil-gas separation effect and separation efficiency are improved; moreover, the gas flow in the cavity () is filtered by the filtering screen (), thereby oil and gas are further separated, and oil separation efficiency and oil separation effect are further improved. 1. An oil separation structure , comprising:a housing and a filtering screen;wherein, a core is provided in a center of the housing, and multiple guiding members are provided along a circumferential direction of the core to guide a gas flow;the filtering screen is provided on an outer periphery of the housing, and a cavity is formed between the filtering screen and the core;the housing is provided with a gas inlet and a gas outlet that are in communication with the cavity;the gas inlet is configured to introduce the gas flow into the cavity; the guiding members are configured to guide the gas flow in the cavity to rotationally flow ...

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Номер записи: 68
25-06-2015 дата публикации

Rotary compressor

Номер: US20150176583A1
Автор: Akira Inagaki, Hiroki Ishii, Yoshinori Murase
Принадлежит: Denso Corp

A rotary compression mechanism is provided with a rotor which can rotate about the axis of a shaft mounted to a casing, a cylinder which can rotate about a rotation center eccentric from the shaft, and a drive plate which is installed so as to be capable of swinging relative to one of the cylinder and the rotor and to be capable of sliding relative to the other of the cylinder and the rotor and which rotationally connects the cylinder and the rotor. Spaces which are separated from each other by both a partition point and the drive plate and which are located between the inner surface of the cylinder and the outer periphery of the rotor are operating chambers for performing compression or suction.

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Номер записи: 69
21-06-2018 дата публикации

SCREW COMPRESSOR

Номер: US20180172002A1
Автор: Desiron Andries Jan F.
Принадлежит: Atlas Copco Airpower, Naamloze Vennootschap

Screw compressor with a compression chamber that is formed by a compression housing, in which a pair of meshed helical compressor rotors in the form of a screw are rotatably mounted and with a drive motor that is provided with a motor chamber formed by a motor housing, in which a motor shaft is rotatably mounted. The motor shaft drives at least one of the aforementioned two compressor rotors, where the compression housing and the motor housing are connected directly together to form a compressor housing, where the motor chamber and the compression chamber are not sealed off from one another and where the rotor shafts of the compressor rotors, as well as the motor shaft, extend along axial directions that are oblique or transverse to the horizontal plane. 136.-. (canceled)37. A vertical screw compressor comprising:a compression chamber, comprising an inlet and an outlet, that is formed by a compression housing in which a pair of meshed helical compressor rotors in the form of a screws are rotatably mounted; rotor shafts of said meshed helical compressor rotors extend parallel to one another along first and second rotational axes, respectively;a non-return valve provided at the inlet of the compression chamber;a drive motor that is provided with a motor chamber formed by a motor housing, in which a motor shaft is rotatably mounted that drives at least one of the aforementioned pair of meshed helical compressor rotors,wherein the compression housing and the motor housing are connected directly to one another to form a compressor housing, whereby the motor chamber and the compression chamber are not sealed off from one another, andwherein the rotor shafts of the compressor rotors extend at an angle with or transverse to the horizontal plane during normal operation of the vertical screw compressor, anda pressure vessel, arranged downstream and separate from the compressor housing, comprising an outlet valve;wherein, when the vertical screw compressor is stopped, the ...

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Номер записи: 70
22-06-2017 дата публикации

ROTARY COMPRESSOR

Номер: US20170175742A1
Автор: MORISHITA Taku, MOROZUMI Naoya
Принадлежит:

In a rotary compressor, a protruding portion which protrudes downward from a bottom end of a rotation shaft and in which an outer diameter is smaller than an outer diameter of a sub-bearing unit is formed on the sub-bearing unit which is provided on a lower end plate, a step portion is formed between the protruding portion and the sub-bearing unit, and a center hole of a lower end plate cover is caused to mate with the protruding portion and is caused to come into close contact with the step portion. 1. A rotary compressor comprising:a sealed vertically-placed cylindrical compressor housing in which a discharge pipe which discharges a refrigerant is provided on a top portion and an upper inlet pipe and a lower inlet pipe which suck in the refrigerant are provided on bottom portions of side surfaces;an accumulator which is fixed to a side portion of the compressor housing and which is connected to the upper inlet pipe and the lower inlet pipe;a motor which is disposed inside the compressor housing; anda compressing unit which is disposed beneath the motor inside the compressor housing, is driven by the motor, sucks in the refrigerant from the accumulator via the upper inlet pipe and the lower inlet pipe, compresses the refrigerant, and discharges the refrigerant from the discharge pipe, an upper cylinder and a lower cylinder which are formed in ring shapes;', 'an upper end plate which blocks a top side of the upper cylinder and a lower endplate which blocks a bottom side of the lower cylinder;', 'an intermediate partition plate which is disposed between the upper cylinder and the lower cylinder and blocks a bottom side of the upper cylinder and a top side of the lower cylinder;', 'a rotation shaft which includes, in an inner portion thereof, an oil feeding vertical hole into which an oil feeding impeller is press-fitted and an oil feeding horizontal hole which communicates with the oil feeding vertical hole, whose main shaft unit is supported by a main bearing unit ...

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Номер записи: 71
08-07-2021 дата публикации

ROTARY COMPRESSOR AND REFRIGERATION CYCLE APPARATUS

Номер: US20210207601A1
Автор: Hirayama Takuya, KIMURA Shigeki
Принадлежит: TOSHIBA CARRIER CORPORATION

According to one embodiment, a rotary compressor includes a compression mechanism unit. When H is the length of a middle shaft part, Hp is the length of a bearing hole, Dp is the inner diameter of the bearing hole, Dc is the outer diameter of a crank part, Dm is the outer diameter of the middle journal part, C is the axial length of a first chamfered part provided to a middle shaft part-side end edge of the crank part, C is the axial length of a second chamfered part, C is the axial length of a third chamfered part, and C is the axial length. of a fourth chamfered part, Dp is larger than Dc and Dm, and the relationships of [Equation 1] H≤Hp, [Equation 2] H>Hp−CC√{square root over ((Dp−Dc))}, and [Equation 2] H>Hp−CC√{square root over ((Dp−Dm))} are all satisfied. 2. The rotary compressor of claim 1 , further comprising:a spacer interposed between the partition plate and the cylinder body corresponding to the other crank portion adjacent to the second bearing,whereinthe intermediate shaft portion of the rotating shaft penetrates the spacer.3. The rotary compressor of claim 1 , whereinthe rotating shaft is an integrated structure in which the first journal portion, the second journal portion, the intermediate journal portion, the plurality of crank portions, and the intermediate shaft portion are formed integrally, andan outer diameter of the other crank portion adjacent to the second bearing is smaller than an outer diameter of the one of the crank portions.4. The rotary compressor of claim 2 , whereina suction port to which the working fluid is guided, and two branch passages branched from the suction port toward the cylinder chambers corresponding to the two cylinder bodies opposed with the partition plate disposed therebetween, are formed inside the partition plate including the bearing hole.5. The rotary compressor of claim 4 , whereinthe partition plate including the bearing hole includes a relief recess portion continuous with the bearing hole, andthe relief ...

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Номер записи: 72
30-06-2016 дата публикации

VARIABLE DISPLACEMENT PUMP

Номер: US20160186751A1
Автор: SHINOHARA Toru
Принадлежит: MAHLE FILTER SYSTEMS JAPAN CORPORATION

A variable displacement pump includes a housing having a pair of end wall surfaces; an annular outer rotor guide swingably disposed between the pair of end wall surfaces; a cylindrical outer rotor; an inner rotor provided radially inward of the outer rotor and configured to rotate integrally with a drive shaft at a location eccentric relative to the outer rotor; and a plurality of coupling plates coupling the inner rotor and the outer rotor. The outer rotor is rotatably fitted into an outer rotor supporting surface of the outer rotor guide. A space between the inner rotor and the outer rotor is partitioned into a plurality of chambers by the plurality of coupling plates. A concave portion is formed in the outer rotor supporting surface such that the concave portion exists over an entire axial range between the both end surfaces of the outer rotor guide. 1. A variable displacement pump comprising:a housing including a pair of end wall surfaces through which a drive shaft passes, wherein a suction port and a discharge port are formed in at least one of the pair of end wall surfaces;an annular outer rotor guide swingably disposed between the pair of end wall surfaces such that both end surfaces of the outer rotor guide are in close contact with the pair of end wall surfaces, wherein the outer rotor guide includes an outer rotor supporting surface given in a cylinder-surface shape, the drive shaft passing radially inward of the outer rotor supporting surface;a cylindrical outer rotor including an outer circumferential surface given in a cylinder-surface shape, the outer rotor being rotatably fitted into the outer rotor supporting surface;an inner rotor provided radially inward of the outer rotor and configured to rotate integrally with the drive shaft at a location eccentric relative to the outer rotor; anda plurality of coupling plates coupling the inner rotor and the outer rotor such that rotational force is transmitted from the inner rotor to the outer rotor,wherein ...

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Номер записи: 73
04-06-2020 дата публикации

MULTISTAGE COMPRESSOR SYSTEM WITH INTERCOOLER

Номер: US20200173438A1
Автор: Wood Mark W.
Принадлежит:

A multistage compressor system with intercooler can include a sealed housing with first and second compressor stages, where the first compressor stage is for receiving refrigerant from outside of the sealed housing, and the second compressor stage is for receiving refrigerant from within the sealed housing. The compressor system can also include a crank for mechanically driving the first compressor stage and/or the second compressor stage, and a heat exchanger outside of the sealed housing for receiving refrigerant from the first compressor stage and exchanging heat with the refrigerant. The compressor system can further include an oil reservoir contained by the sealed housing, where the oil reservoir includes oil for lubricating the crank, receives the refrigerant from the heat exchanger, and exchanges heat with the refrigerant to cool the oil in the oil reservoir, and where the refrigerant can be supplied to the second compressor stage. 1. A multistage compressor system with intercooler comprising:a sealed housing;a first compressor stage contained by the sealed housing, the first compressor stage for receiving refrigerant from outside of the sealed housing and compressing the refrigerant;a second compressor stage contained by the sealed housing, the second compressor stage for receiving refrigerant from within the sealed housing and compressing the refrigerant;a concentric vane compression device including the first compressor stage and the second compressor stage;a crank for mechanically driving both the first compressor stage and the second compressor stage;a heat exchanger outside of the sealed housing, the heat exchanger for receiving refrigerant from the first compressor stage and exchanging heat with the refrigerant; andan oil reservoir contained by the sealed housing, the oil reservoir including oil for lubricating the crank, the oil reservoir for receiving the refrigerant from the heat exchanger and exchanging heat with the refrigerant to cool the oil in ...

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Номер записи: 74
04-06-2020 дата публикации

ROTARY COMPRESSOR

Номер: US20200173439A1
Автор: IZUMI Yasuyuki, UEDA Kenshi
Принадлежит: FUJITSU GENERAL LIMITED

A compression part of a rotary compressor includes an intermediate partition plate that is arranged between an upper cylinder and a lower cylinder, an upper vane that sections an upper cylinder chamber formed within the upper cylinder into an upper suction chamber and an upper compression chamber, and a lower vane that sections a lower cylinder chamber formed within the lower cylinder into a lower suction chamber and a lower compression chamber. The intermediate partition plate is formed with an injection hole that injects a liquid refrigerant into the upper compression chamber and the lower compression chamber and an injection passage that supplies the liquid refrigerant to the injection hole. The injection passage is formed along a straight line that does not cross a rotary shaft insertion hole into which a rotary shaft is inserted. 1. A rotary compressor comprising:a compressor casing that is formed in a substantially cylindrical shape, is vertically installed, is provided with a discharge pipe discharging a refrigerant at an upper part, is provided with an upper suction pipe and a lower suction pipe sucking the refrigerant at a lower part of a side face, and is hermetically sealed;an accumulator that is fixed to a side part of the compressor casing and connected to the upper suction pipe and the lower suction pipe;a motor that is arranged within the compressor casing; anda compression part that is arranged below the motor within the compressor casing and driven by the motor to suck the refrigerant from the accumulator via the upper suction pipe and the lower suction pipe, compress the refrigerant, and discharge the refrigerant from the discharge pipe, wherein an upper cylinder that is formed in an annular shape;', 'a lower cylinder that is formed in an annular shape;', 'an upper end plate that blocks an upper side of the upper cylinder', 'a lower end plate that blocks a lower side of the lower cylinder;', 'an intermediate partition plate that is arranged between ...

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Номер записи: 75
04-06-2020 дата публикации

Electrical Arrangement Assembly Structure on the External Region of the Hermetic Housing of the Compressor

Номер: US20200173440A1
Автор: Malon Vagner Roberto, Rech Rafael Burg, Santos Marcelo Alessandro
Принадлежит:

It is disclosed an electrical arrangement assembly structure on the external region of the hermetic housing of the compressor, whereby the insulating box, capable of housing, within the same, at least one electrical arrangement necessary for the operation of the compressor, is coupled to the external region of the hermetic housing of the compressor by means of angular movement between said insulating box and a hinge element attached to the hermetic housing of the compressor. 1. Electrical arrangement assembly structure on the external region of the hermetic housing of the compressor , characterized by the fact that it comprises:{'b': '12', 'at least one insulating box capable of accommodating within the same at least one electrical arrangement necessary for the operation of the compressor; said insulating box comprising at least an opening for access to the electrical terminals of the electrical arrangement, and at least one housing region ();'}at least one hinge element fixed to the external region of the hermetic housing of the compressor, close to the electrical terminals of the electrical interface between the internal region and the external region of the hermetic housing of the compressor; said hinge element comprising at least one pivot handle;the housing region of the insulating box and the pivot handle of the hinge element being cooperative with each other, in order to enable an angular movement between said insulating box and said hinge element.2. Assembly structure claim 1 , according to claim 1 , characterized by the fact that the end of angular movement between the insulating box and the hinge element results in the electrical connection between the electrical terminals of the electrical arrangement and the electrical terminals of the electrical interface between the internal region and the external region of the hermetic housing of the compressor.3. Assembly structure claim 1 , according to claim 1 , characterized by the fact that the hinge element ...

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Номер записи: 76
05-07-2018 дата публикации

HERMETIC COMPRESSOR

Номер: US20180187680A1
Автор: KANG Seoungmin, Lee Byeongchul, MOON Seokhwan
Принадлежит:

A hermetic compressor is provided that may include a cylinder having an inner circumferential surface which forms a compression chamber formed in an elliptical shape; a roller provided to be eccentric from the inner circumferential surface of the cylinder, and configured to change a volume of the compression chamber by being rotated; and at least one vane formed to be withdrawn towards the inner circumferential surface of the cylinder when the roller is rotated, and configured to divide the compression chamber into a plurality of spaces. When it is assumed that on the basis of a contact point where the inner circumferential surface of the cylinder and an outer circumferential surface of the roller are closest to each other, and a first center line passing through a center of the cylinder, an ellipse positioned at a first side of the first center line and forming the inner circumferential surface of the cylinder is defined as a first ellipse, a center point of the first ellipse is defined as a first center point, an ellipse positioned at a second side of the first center line and forming the inner circumferential surface of the cylinder is defined as a second ellipse, a center point of the second ellipse is defined as a second center point, under these assumptions, the first center point and the second center point are spaced apart from the center of the cylinder. 1. A hermetic compressor , comprising:a cylinder having an inner circumferential surface, which forms a compression chamber, formed in an elliptical shape;a roller provided to be eccentric from the inner circumferential surface of the cylinder, and configured to change a volume of the compression chamber by being rotated; andat least one vane formed to be withdrawn towards the inner circumferential surface of the cylinder when the roller is rotated, and configured to divide the compression chamber into a plurality of spaces, wherein when it is assumed that on the basis of a contact point where the inner ...

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Номер записи: 77
20-06-2019 дата публикации

Co-Rotating Compressor With Multiple Compression Mechanisms

Номер: US20190186488A1
Автор: DOEPKER Roy J., Stover Robert C.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor may include a shell, first and second compression mechanisms, and first and second motor assemblies. The first compression mechanism may include first and second compression members that are rotatable relative to the shell about first and second rotational axes, respectively. The first motor assembly may be disposed within the shell and may include a first rotor attached to the first compression member. The second compression mechanism may include third and fourth compression members that are rotatable relative to the shell about third and fourth rotational axes, respectively. The second motor assembly may be disposed within the shell and may include a second rotor attached to the third compression member. 1. A compressor comprising:a shell;a first compression mechanism disposed within the shell and including a first compression member that is rotatable relative to the shell about a first rotational axis and a second compression member that is rotatable relative to the shell about a second rotational axis that is parallel to and offset from the first rotational axis;a first motor assembly disposed within the shell and including a first rotor attached to the first compression member;a second compression mechanism disposed within the shell and including a third compression member that is rotatable relative to the shell about a third rotational axis and a fourth compression member that is rotatable relative to the shell about a fourth rotational axis that is parallel to and offset from the third rotational axis; anda second motor assembly disposed within the shell and including a second rotor attached to the third compression member,wherein:the first compression mechanism receives and further compresses fluid discharged from the second compression mechanism,a fourth hub of the fourth compression member includes a discharge passage through which fluid compressed by the second compression mechanism flows, anda second hub of the second compression member ...

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Номер записи: 78
11-06-2020 дата публикации

VANE-TYPE AIR MOTOR

Номер: US20200182057A1
Автор: Kim Jae-Ho
Принадлежит:

The present invention provides a vane-type compressed air motor, comprising a casing, a rotor and vanes, wherein the casing is provided with an air inlet and an air outlet, a plurality of vanes are inserted into the rotor, and the rotor is disposed inside the casing to form a rotating body. The difference from the prior art is that the present invention further comprises a vane stopper, an inner retainer ring, stop bearings and a kit. Using the technique provided by the present invention, the wear of the vanes can be significantly reduced even under high pressure conditions, such that the service life of the vane is prolonged, air leakage is prevented, and the motor power can be improved. The present invention can also be used in various tools, having a significant effect of saving a lot consumption and cost, thereby having broad market prospects. 1. A vane-type compressed air motor , comprisinga casing, a rotor and vanes,the casing being provided with an air inlet and an air outlet, and;a plurality of vanes being inserted into the rotor which is disposed inside the casing to form a rotating body;wherein the vane-type compressed air motor further comprises: vane stoppers, an inner retainer ring, stop bearings and a kit,the vane stoppers are respectively disposed on two sides of an inner end side of the vane to form a protruding limit stop; the inner retainer ring is connected to an upper central portion of the rotor, with an outer ring thereof pushing the limit stop of the vane outwards; the stop bearings are respectively disposed at upper and lower portions of the rotor to restrict the vane stopper from moving outwards; and the kit is composed of an upper cover and a lower cover respectively disposed at two ends of the rotor, with inner side surfaces of the upper cover and the lower cover being provided with guide grooves, the vanes being movable within the guide grooves.2. (canceled)3. The vane-type compressed air motor according to claim 1 , wherein an insertion ...

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Номер записи: 79
12-07-2018 дата публикации

Rotary compressor

Номер: US20180195512A1
Автор: Danwei Liu, Heng Yang, Jiansheng Liao
Принадлежит: Guangdong Meizi Compressor Co Ltd

A rotary compressor ( 100 ) includes a casing ( 1 ), an electric motor ( 2 ) and a compression mechanism ( 3 ), in which the electric motor ( 2 ) includes a stator core ( 21 ) and a rotor core ( 22 ), the compression mechanism ( 3 ) includes an air cylinder assembly ( 31 ) and a main bearing ( 32 ) connected to a side end face of the cylinder assembly ( 31 ) adjacent to the electric motor ( 2 ), the largest distance between a side end face of the stator core ( 21 ) adjacent to the first end wall ( 111 ) and the first end wall ( 111 ) is denoted by Dst, the smallest distance between a side end face of the rotor core ( 22 ) adjacent to the first end wall ( 111 ) and a side end face of a flange portion ( 321 ) of the main bearing ( 32 ) at one side adjacent to the first end wall ( 111 ) is denoted by Drt, in which Dst and Drt satisfy a relationship: 0.335≤Dst/Drt≤0.838.

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Номер записи: 80
30-07-2015 дата публикации

Compressor

Номер: US20150211508A1
Автор: Kazutaka Hori, Kouichi Tanaka, Takashi Shimizu
Принадлежит: Daikin Industries Ltd

A compressor includes fixed and movable side members. The fixed side member has a discharge port opened/closed by adischarge port. The discharge valve has a valve body which closes/opens an outlet end of the discharge port. An area of an inlet end of the discharge port is Ai, a peripheral length of the inlet end is Li, and a hydraulic diameter Di of the inlet end is 4(Ai/Li). A peripheral length of the outlet end of the discharge port is Lo, a reference lift amount of the valve body is ho, a cross sectional area Ao of an outlet side flow path formed between the outlet end of the discharge port and the valve body is Lo×ho, and a hydraulic diameter Do of the outlet side flow path is 4(Ao/2Lo). A ratio (Do/Di) is 0.25 or more and 0.5 or less.

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Номер записи: 81
02-10-2014 дата публикации

Rotary Compressor

Номер: US20140294639A1
Автор: Jason James Hugenroth
Принадлежит: Caire Inc

An aspect of the present disclosure involves a rotary compressor that is primarily optimized for use without the need for liquid lubricants, such as in the flow path of the fluid being compressed, and is efficient and quiet to use. The compressors described herein are efficient, run quietly, use less power, and last longer than those previously known in the art. The compressors are useful for medical applications and other clean gas applications, for instance, where lubricants could contaminate the fluid being compressed and/or increased noise and/or vibration may be problematic.

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Номер записи: 82
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: 83
04-07-2019 дата публикации

Rotary cylinder type compressor

Номер: US20190203714A1
Автор: Hiroshi Ogawa, Mikio Matsuda, Yoshinori Murase, Yuichi Ohno
Принадлежит: Denso Corp

A rotary cylinder type compressor includes: a cylinder that is rotatably placed in an inside of a housing; a rotor that is placed in an inside of the cylinder and is rotatable about an eccentric axis that is eccentric to a rotational central axis of the cylinder; and a partition member that partitions a working chamber formed between an outer peripheral surface of the rotor and an inner peripheral surface of the cylinder into a suction space and a compression space. When a pressure of fluid in the compression space is equal to or larger than a reference pressure, a contact stress, which is exerted at an adjoining portion between the outer peripheral surface of the rotor and the inner peripheral surface of the cylinder, is increased in comparison to a case where the pressure of the fluid in the compression space is smaller than the reference pressure.

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Номер записи: 84
03-08-2017 дата публикации

ROTARY COMPRESSOR

Номер: US20170218955A1
Автор: KUMAKURA Eiji, Nishimura Kousuke, OHKAWA Takeyoshi
Принадлежит:

A rotary compressor includes a cylinder having a cylinder chamber and bush groove, a piston housed in the cylinder chamber, a blade formed with the piston to separate the cylinder chamber into low and high pressure chambers, and a pair of bushes. The bushes are fitted in the bush groove with flat surfaces facing each other to hold the blade. The flat surface of at least the bush on the low-pressure side has a crowned portion starting from a position closer to the back pressure space than a swing center position, and extending toward an edge of the bush closer to the cylinder chamber. The swing center position is where a gap between the blade and the bush is constant while the piston rotates eccentrically. 21. The rotary compressor of claim , wherein {'br': None, '0.2≦α'}, 'a parameter α, which is a ratio of L′ to L, satisfies'}where L represents a length of the flat surface of the bush before being subjected to the crowning process, and L′ represents a length between the edge of the at least one bush closer to the cylinder chamber and the crowning start position.31. The rotary compressor of claim , wherein {'br': None, 'α<0.5'}, 'a parameter α, which is a ratio of L′ to L, satisfies'}where L represents a length of the flat surface of the bush before being subjected to the crowning process, and L′ represents a length between the edge of the at least one bush closer to the cylinder chamber and the crowning start position.{'b': '4', 'claim-ref': {'@idref': 'CLM-00002', 'claim 2'}, '. The rotary compressor of , wherein'}a shift length x , which is a distance from the flat surface of the bush {'br': None, 'i': 'x≦α·C'}, 'to a crowning end position, satisfies'}where C represents a total length of gaps between the flat surfaces of the pair of bushes and the blade and gaps between the curved surfaces of the pair of bushes and the bush groove.51. The rotary compressor of claim , whereinthe crowned portion is in a form of an arc in contact with the blade at the crowning start ...

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Номер записи: 85
02-07-2020 дата публикации

ROTARY COMPRESSOR

Номер: US20200208634A1
Автор: IZUMI Yasuyuki, UEDA Kenshi
Принадлежит: FUJITSU GENERAL LIMITED

In a rotary compressor, a lower end plate includes a lower discharge valve that opens and closes a lower discharge hole, a lower discharge-valve accommodating recessed portion in which the lower discharge valve is accommodated, and a lower discharge-chamber recessed portion that is formed so as to overlap with the lower discharge hole side of the lower discharge-valve accommodating recessed portion and communicates with a refrigerant passage hole. A lower end plate cover is formed in a flat-plate shape and is provided with a bulging portion having a portion facing the lower discharge hole. An upper end-plate cover chamber is formed by the lower discharge-valve accommodating recessed portion, the lower discharge-chamber recessed portion, and the bulging portion. The bulging portion has a volume of 1/18 or greater and 1/9 or less of a total of air volumes of an upper compression chamber and a lower compression chamber. 1. A rotary compressor comprising:a sealed and vertical cylindrical compressor housing provided with a refrigerant discharge portion at an upper portion and a refrigerant suction portion at a lower portion;a compression unit arranged at a lower portion of the compressor housing and configured to compress refrigerant that is sucked from the suction portion and to discharge the refrigerant from the discharge portion; anda motor arranged at an upper portion of the compressor housing and configured to drive the compression unit, wherein an annular upper cylinder and an annular lower cylinder,', 'an upper end plate closing an upper side of the upper cylinder, and a lower end plate closing a lower side of the lower cylinder,', 'an intermediate partition plate arranged between the upper cylinder and the lower cylinder, and closing a lower side of the upper cylinder and an upper side of the lower cylinder,', 'a rotating shaft supported by a main bearing portion provided on the upper end plate and by a sub-bearing portion provided on the lower end plate, and ...

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Номер записи: 86
11-07-2019 дата публикации

Rotary compressor

Номер: US20190211823A1
Автор: Naoya Morozumi
Принадлежит: Fujitsu General Ltd

A suction passage includes: a first passage that is cylindrical and connected to a suction unit; and a second passage whose one end is connected to the first passage and other end has an opening on the inner circumference of a cylinder. The second passage is formed, from its one end to the other end, in a slit-like shape penetrating the upper side and the lower side of the cylinder, and satisfies L≥W 1 , W 1 ≤D 1 ×0.7, W 2 ≤D 1 where the width of the second passage at the other end in a circumferential direction of the cylinder is W 1 , the width of the second passage at the one end is W 2 , the length of the second passage from the one end to the other end is L, and the inner diameter of the first passage at an area connected to the second passage is D 1.

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Номер записи: 87
23-10-2014 дата публикации

Package Type Fluid Machine

Номер: US20140314586A1
Автор: KANAIZUMI Atsushi
Принадлежит: Hitachi Industrial Equipment Systems Co., Ltd.

A package type fluid machine having a plurality of fluid machine units each of which includes a fluid machine, a motor that drives the fluid machine, and a belt that connects the fluid machine and the motor. The plurality of fluid machine units are arranged in a cabinet, wherein the plurality of fluid machine units has a pair of the fluid machine units, arranged opposed to each other, with the belts of the fluid machine units facing inward. 1. A package type fluid machine comprising:a plurality of fluid machine units each of which includes a fluid machine, a motor that drives said fluid machine, and a belt that transmits a power of said motor to said fluid machine, said plurality of fluid machine units being arranged in a cabinet, whereinsaid plurality of fluid machine units has a pair of said fluid machine units, arranged opposed to each other, with the belts of said fluid machine units facing inward.2. The package type fluid machine according to claim 1 , further comprisinga pair of intake ports provided on opposed sides of said cabinet, one for each side, with positions of said intake ports of the pair shifted to each other.3. The package type fluid machine according to claim 2 , whereinsaid motor of one of the fluid machine units of said pair of opposed fluid machine units and said fluid machine of the other fluid machine unit are arranged opposed to each other.4. The package type fluid machine according to claim 2 , whereinsaid intake port is provided on a part faced with said motor in said cabinet.5. The package type fluid machine according to claim 1 , further comprisinga main exhaust port provided above said pair of opposed fluid machine units on a top face of said cabinet.6. The package type fluid machine according to claim 1 , whereinsaid cabinet has a column-shaped panel and a side panel attached to said column-shaped panel.7. The package type fluid machine according to claim 6 , whereinsaid side panel, which is arranged opposed to said motor and said ...

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Номер записи: 88
23-10-2014 дата публикации

Refrigerant compressor

Номер: US20140314606A1
Автор: Hideaki Maeyama, Koichi Sato
Принадлежит: Mitsubishi Electric Corp

A refrigerant compressor configured to compress ethylene fluorohydrocarbon or a mixture containing the ethylene fluorohydrocarbon as a refrigerant, the refrigerant compressor including: a compression element configured to compress the refrigerant and including a sliding component that constitutes a sliding portion; and refrigerator oil configured to be supplied to the sliding component so as to lubricate the sliding portion, wherein a polymerization inhibitor configured to suppress polymerization of the refrigerant is contained in the refrigerator oil.

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Номер записи: 89
23-10-2014 дата публикации

REFRIGERANT COMPRESSOR

Номер: US20140314607A1
Автор: Maeyama Hideaki, Sato Koichi
Принадлежит: Mitsubishi Electric Corporation

A refrigerant compressor configured to compress ethylene fluorohydrocarbon or a mixture containing the ethylene fluorohydrocarbon as a refrigerant, the refrigerant compressor including: a compression element configured to compress the refrigerant and including a sliding component that constitutes a sliding portion; and refrigerator oil configured to be supplied to the sliding component so as to lubricate the sliding portion, wherein at least one of the sliding surfaces of the sliding component is formed by non-metal, and wherein a polymerization inhibitor configured to suppress polymerization of the refrigerant is contained in the refrigerator oil. 1. A refrigerant compressor configured to compress ethylene fluorohydrocarbon or a mixture containing the ethylene fluorohydrocarbon as a refrigerant , the refrigerant compressor comprising:a compression element configured to compress the refrigerant and including a sliding component that constitutes a sliding portion; andrefrigerator oil configured to be supplied to the sliding component so as to lubricate the sliding portion,wherein at least one of the sliding surfaces of the sliding component is formed by non-metal, andwherein a polymerization inhibitor configured to suppress polymerization of the refrigerant is contained in the refrigerator oil.2. A refrigerant compressor configured to compress ethylene fluorohydrocarbon or a mixture containing the ethylene fluorohydrocarbon as a refrigerant , the refrigerant compressor comprising:a compression element configured to compress the refrigerant and including a sliding component that constitutes a sliding portion,wherein the sliding component is a sintered component in which a polymerization inhibitor configured to suppress polymerization of the refrigerant is contained, andwherein at least one of the sliding surfaces of the sliding component is formed by non-metal.3. A refrigerant compressor configured to compress ethylene fluorohydrocarbon or a mixture containing the ...

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Номер записи: 90
09-08-2018 дата публикации

Compressor Discharge Valve Assembly

Номер: US20180223823A1
Автор: GEHRET Kevin J., IGNATIEV Kirill M., PEREVOZCHIKOV Michael M.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor may include a shell, a non-orbiting scroll, an orbiting scroll, and a discharge valve member. The shell may define a discharge chamber. The non-orbiting scroll may be disposed within the discharge chamber and includes a first end plate and a first spiral wrap extending from the first end plate. The orbiting scroll may be disposed within the discharge chamber and includes a second end plate and a second spiral wrap extending from the second end plate. The first and second spiral wraps mesh with each other to define fluid pockets therebetween. The second end plate includes a discharge passage extending therethrough. The discharge valve member may be attached to the second end plate and may be movable between an open position allowing fluid flow from the discharge passage to the discharge chamber and a closed position restricting fluid flow from the discharge passage to the discharge chamber. 1. A compressor comprising:a non-orbiting scroll including a first end plate and a first spiral wrap extending from the first end plate;an orbiting scroll including a second end plate and a second spiral wrap extending from the second end plate, the first and second spiral wraps meshing with each other to define a plurality of fluid pockets therebetween, the second end plate including a discharge passage extending therethrough;a driveshaft driving the orbiting scroll;a discharge valve member movable between an open position allowing fluid flow through the discharge passage and a closed position restricting fluid flow through the discharge passage; anda valve backer movable relative to the discharge valve member and the second end plate to force the discharge valve member into the closed position during a first portion of a rotation of the driveshaft and allow the discharge valve member to move into the open position during a second portion of the rotation of the driveshaft.2. The compressor of claim 1 , wherein the valve backer is rotationally fixed relative to the ...

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Номер записи: 91
09-08-2018 дата публикации

COMPRESSOR

Номер: US20180223845A1
Автор: Lee Byeongchul, LEE Yunhi, MOON Seokhwan
Принадлежит:

Disclosed is a compressor. A lubrication surface, which has the same curvature as an inner circumferential surface curvature of a cylinder and which has a predetermined circumference length, is formed on an outer circumferential surface of a roller contacting an inner circumferential surface of the cylinder. With such a configuration, since the outer circumferential surface of the roller contacting the inner circumferential surface of the cylinder come in surface-contact with each other, an oil film is formed between the roller and the cylinder with a wide area. This can reduce a frictional loss. 1. A compressor , comprising:a driving motor;a rotational shaft configured to transmit a rotational force of the driving motor;a cylinder installed at one side of the driving motor;a roller having an outer circumferential surface contacting an inner circumferential surface of the cylinder, rotated by being provided at the rotational shaft, and concentric with the cylinder; andat least two vanes movably provided at the cylinder, contacting an outer circumferential surface of the roller, and configured to divide at least two compression spaces formed by the cylinder and the roller into a suction chamber and a compression chamber,wherein the roller is provided with a lubrication surface on its outer circumferential surface contacting in surface-contact with the inner circumferential surface of the cylinder, the lubrication surface having the same radius from a rotation center of the roller and having a predetermined circumference length in a circumferential direction.2. The compressor of claim 1 , wherein the lubrication surface comprises an extended surface claim 1 , where a sum of distances from two points to the outer circumferential surface of the roller is increased claim 1 , is formed on the outer circumferential surface of the roller.3. The compressor of claim 2 , wherein the extended surface includes:a first curved surface spaced from the inner circumferential surface ...

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Номер записи: 92
19-08-2021 дата публикации

Pump Body and Compressor with Pump Body

Номер: US20210254621A1
Автор: Fayou Luo, Fei Wu, Guomang YANG, Jia Xu, Jinfei SHI, Pengkai Wan, Wenjiao SUN
Принадлежит: Gree Electric Appliances Inc of Zhuhai

The disclosure discloses a pump body and a compressor with the pump body. The pump body includes: a flange structure; a bearing, the bearing being provided with an inner ring and an outer ring, the inner ring being rotatably disposed on the flange structure, and an end face of the inner ring being abutted against a contact face of the flange structure; and an oil guide channel provided inside a side wall of the inner ring, or inside the flange structure, or the side wall of the inner ring and inside the flange structure, an outlet of the oil guide channel being positioned between the end face of the inner ring and the contact face of the flange structure, so as to introduce lubricating oil between the end face of the inner ring and the contact face of the flange structure.

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Номер записи: 93
09-07-2020 дата публикации

ROTARY COMPRESSOR

Номер: US20200217203A1
Автор: LEE Sedong, Sa Bumdong, Seol Seseok
Принадлежит:

A rotary compressor: a casing; a plurality of bearings provided in an internal space of the casing; at least one cylinder provided between the bearings to form a compression space and has a vane slot; a rolling piston accommodated in the compression space to perform an orbiting movement; at least one vane that is slidably inserted into the vane slot of the cylinder, the at least one vane configured to separate the compression space into a suction chamber and a discharge chamber; a discharge cover including a noise reducing space to accommodate refrigerant discharged from the compression space; and a bypass flow path that allows the noise reducing space of the discharge cover to be connected between a sidewall of the vane slot and a side of the vane facing the sidewall. 1. A rotary compressor comprising:a casing;a plurality of bearings provided in an internal space of the casing;at least one cylinder that is provided between the bearings to form a compression space, the at least one cylinder including a vane slot;a rolling piston that is accommodated in the compression space and configured to perform an orbiting movement within the compression space;at least one vane that is slidably inserted into the vane slot of the cylinder and, along with the rolling piston, divides the compression space into a suction chamber and a discharge chamber;a discharge cover that defines a noise reducing space between the discharge cover and a first bearing of the plurality of bearings to accommodate refrigerant discharged from the compression space; anda bypass flow path that allows the noise reducing space to communicate with a space between a sidewall of the vane slot and a side of the vane that faces the sidewall of the vane slot, so that the refrigerant discharged to the noise reducing space is supplied to the side of the vane.2. The rotary compressor of claim 1 , wherein a first open end of the bypass flow path is in fluid communication with the noise reducing space claim 1 , and ...

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Номер записи: 94
30-10-2014 дата публикации

ROTARY COMPRESSOR

Номер: US20140322057A1
Автор: Funakosi Daisuke, HASEGAWA Hiroshi, Hikichi Takumi, HIWATA AKIRA, Karino Tsuyoshi, Nakai Hiroaki, Ogata Takeshi, Ohno Ryuichi, SHII KENTARO, Shiotani Yu, SHOYAMA TADAYOSHI, WADA Masanobu, Yoshida Hirofumi
Принадлежит:

A rotary compressor () includes a closed casing (), a cylinder (), a piston (), a lower bearing member (), a vane (), a suction port (), a discharge port (), and a partition member (). The partition member () is attached to the lower bearing member () so as to form a refrigerant discharge space () serving as a flow path of a refrigerant discharged from a discharge chamber () through the discharge port (). The lower bearing member () is provided with a first recess () on the same side as the suction port () with respect to a reference plane, the reference plane being a plane including a central axis of the cylinder () and a center of the vane () when the vane () protrudes maximally toward the central axis of the cylinder (). A portion of oil stored in an oil reservoir () flows into the first recess (), and thereby an oil retaining portion () is formed. 1. A rotary compressor comprising:a closed casing comprising an oil reservoir;a cylinder disposed inside the closed casing;a piston disposed inside the cylinder;a bearing member attached to the cylinder so as to form a cylinder chamber between the cylinder and the piston;a vane that partitions the cylinder chamber into a suction chamber and a discharge chamber;a suction port though which a refrigerant to be compressed is introduced into the suction chamber;a discharge port through which the compressed refrigerant is discharged from the discharge chamber, the discharge port being formed in the bearing member; anda partition member attached to the bearing member so as to form, together with the bearing member, a refrigerant discharge space capable of retaining the refrigerant discharged from the discharge chamber through the discharge port,whereinthe bearing member is provided with a first recess on the same side as the suction port with respect to a reference plane, the reference plane being a plane including a central axis of the cylinder and a center of the vane when the vane protrudes maximally toward the central ...

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Номер записи: 95
16-08-2018 дата публикации

Compressor and heat exchange system

Номер: US20180231000A1
Автор: Huifang LUO, Huijun Wei, Jian Wu, Liping LIAO, Ouxiang YANG, Peng Zou, SHENG Chen, Yusheng Hu
Принадлежит: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai

Disclosed is a compressor, including a crankshaft ( 10 ), and a first cylinder ( 20 ), a second cylinder ( 30 ) and a third cylinder ( 40 ) arranged sequentially in an axial direction of the crankshaft ( 10 ). The first cylinder ( 20 ) is a high-pressure cylinder, and the second cylinder ( 30 ) and the third cylinder ( 40 ) are low-pressure cylinders. The compressor also comprises a capacity variation switching mechanism ( 50 ) for controlling loading and unloading of the third cylinder ( 40 ). The compressor has a full operation mode and a partial operation mode. By means of the capacity variation switching mechanism ( 50 ) provided in the compressor, at least one cylinder is allowed to be put into use or unloaded under the action of the capacity variation switching mechanism ( 50 ), thus enabling a capacity variation switching function of the compressor to meet operational requirements of different operating conditions.

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Номер записи: 96
16-07-2020 дата публикации

Vane rotary compressor

Номер: US20200224656A1
Автор: Seheon Choi, Seokhwan Moon, SeungMin KANG
Принадлежит: LG ELECTRONICS INC

A vane rotary compressor includes: a cylinder forming a compression space having an inlet port and an outlet port, a roller having an outer circumferential surface of one side thereof almost coming into contact with an inner circumferential surface of the cylinder to form a contact point, and a plurality of vanes slidably inserted into the roller to protrude toward the inner circumferential surface of the cylinder so as to divide the compression space into a plurality of compression chambers, wherein ion at least one of the outer circumferential surface of the roller and the inner circumferential surface of the cylinder is provided a surface contact portion between the outer circumferential surface of the cylinder and the inner circumferential surface of the roller is constantly maintained in a preset section including the contact point in a circumferential direction.

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Номер записи: 97
23-08-2018 дата публикации

Rotary compressor and refrigerating cycle device

Номер: US20180238596A1
Автор: Shinya Gotou
Принадлежит: Toshiba Carrier Corp

In one embodiment, an annular groove and an elastic portion are formed at an end portion of a main bearing on a side facing a cylinder chamber. An annular groove and an elastic portion is formed at an end portion of the sub-bearing on a side facing the cylinder chamber. A depth of the annular groove of the main bearing is formed larger than that of the sub-bearing. An outer peripheral surface of the elastic portion of the main bearing is formed in a straight shape so that thicknesses of a base portion and a tip portion of the elastic portion are the same. An outer peripheral surface of the elastic portion of the sub-bearing is formed in a tapered shape so that a thicknesses of a base portion of the elastic portion is larger than that of a tip portion of the elastic portion.

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Номер записи: 98
01-08-2019 дата публикации

Rotary compressor with groove for supplying oil

Номер: US20190234407A1
Автор: Bumdong SA, Joonhong Park
Принадлежит: LG ELECTRONICS INC

A rotary compressor may include a rotational shaft coupled to a drive motor and having a central passage, an eccentric portion provided eccentrically from the rotational shaft, a cylinder through which the rotational shaft passes, the cylinder forming a compression chamber in which refrigerant is accommodated, a roller an inner circumferential surface of which is in close contact with an outer circumferential surface of the eccentric portion, the roller rolling and compressing a refrigerant, a vane inserted into the cylinder, the vane protruding from an inner circumferential surface of the cylinder when backpressure is applied to the vane to be in contact with an outer circumferential surface of the roller, and partitioning the compression chamber into a plurality of chambers; a plurality of oil supply grooves on an outer circumferential surface of the eccentric portion; and an oil supply passage that communicates the central passage with the oil supply grooves.

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Номер записи: 99
23-07-2020 дата публикации

Adaptive Connector Position For High/Low Voltage Inverter

Номер: US20200232465A1
Автор: SCHONEBOOM Sean
Принадлежит:

A power inverter for an electric compressor including a rotatable high voltage housing and a rotatable low voltage housing. The rotatable high voltage housing has a high voltage connector, and the rotatable low voltage housing has a low voltage connector. The rotatable low voltage housing and the rotatable high voltage housing are in cooperation with each other. The rotatable low voltage housing and the rotatable high voltage housing are rotatable independent of each other. Each one of the rotatable high voltage housing and the rotatable low voltage housing is independently connectable to an electrical interface of the electric compressor. 1. A power inverter for an electric compressor comprising:a rotatable high voltage housing including a high voltage connector;a rotatable low voltage housing including a low voltage connector; the rotatable low voltage housing and the rotatable high voltage housing are in cooperation with one another;', 'the rotatable low voltage housing and the rotatable high voltage housing are rotatable independent of each other; and', 'each one of the rotatable high voltage housing and the rotatable low voltage housing is independently connectable to an electrical interface of the electric compressor., 'wherein2. The power inverter of claim 1 , wherein the rotatable high voltage housing and the rotatable low voltage housing are each independently rotatable 360°.3. The power inverter of claim 1 , wherein a portion of the rotatable low voltage housing is seated within an aperture defined by the rotatable high voltage housing.4. The power inverter of claim 1 , wherein the rotatable high voltage housing is between the rotatable low voltage housing and the compressor when the power inverter is coupled to the compressor.5. The power inverter of claim 1 , further comprising:a first pin connector extending from the rotatable high voltage housing, the first pin connector configured to cooperate with a first circular electrical interface of the electric ...

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Номер записи: 100