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Небесная энциклопедия

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

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Мониторинг СМИ

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

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 4681. Отображено 100.
26-01-2012 дата публикации

Control valve for variable displacement compressor

Номер: US20120020814A1
Автор: Shintaro Tano, Yoshiyuki Kume
Принадлежит: Fujikoki Corp

There is provided a control valve for a variable displacement compressor capable of directly connecting a plunger to a valve rod in a relatively easy way, and realizing an improvement in assemblability, reduction in costs, and the like. A connecting cylinder for directly connecting the plunger to the valve rod is provided. The valve rod is provided with a mushroom-like or flange-like part. The connecting cylinder is provided with an elastic locking piece which, by pushing the mushroom-like or flange-like part into the elastic locking piece, is pushed and opened outward in a radial direction so as for the mushroom-like or flange-like part to pass through the elastic locking piece, and which, after the passing of the mushroom-like or flange-like part, is restored to an original shape due to elasticity which the elastic locking piece has, and locks the mushroom-like or flange-like part.

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Номер записи: 1
15-03-2012 дата публикации

Suction arrangement for a hermetic refrigeration compressor

Номер: US20120063937A1
Автор: Emerson Moreira, Fabian Fagotti, Gustavo Cardoso Weber, Milton Wetzel Pereira, Ricardo Alexandre Maciel
Принадлежит: Whirlpool SA

The suction arrangement of the present invention is for a hermetic compressor of the type which includes a hermetic shell; a cylinder block defining, in a single piece, a shell portion and a compression cylinder having an end opened to the exterior of the hermetic shell and closed by a valve plate; a head affixed to the cylinder block onto the valve plate so as to define, with the latter, at least one suction chamber receiving refrigerant gas from a gas inlet pipe external to the hermetic shell. The suction arrangement of the present invention comprises a gas inlet duct defined through the shell portion and through the valve plate and having an outer end hermetically coupled to the gas inlet pipe and an inner end opened to the suction chamber.

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Номер записи: 2
02-08-2012 дата публикации

Compressor

Номер: US20120195784A1
Автор: Keigo Usui, Yusuke Ise
Принадлежит: Calsonic Kansei Corp

A compressor includes a front housing having a crank chamber therein, a cylinder block having a cylinder bore therein, a rear housing including a low-pressure chamber and a high-pressure chamber therein, a valve plate on which a suction hole for communicating the cylinder bore and the low-pressure chamber is formed, and a suction valve disk for opening and closing the suction hole. A predetermined gap width is provided between the suction valve disk and an opening edge of the suction hole, and the gap width is set to 13-15% of a thickness of the suction valve disk. By the compressor, fixation of the suction valve on the valve plate is prevented. Therefore, noise-and-vibration performance improves and thereby generation of undesired noises is prevented. Further, since the fixation of the suction valve on the valve plate is prevented, a desired volume of refrigerant is surely supplied into the cylinder bore.

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Номер записи: 3
09-08-2012 дата публикации

Plunger Type Water Pump

Номер: US20120201706A1
Автор: Bihai Zhu, Defa Wu, Jingyue Chen, Xiaofeng He, Xuyao Mao, Yinshui Liu, Zhi-Heng Guo, Zhuo JIANG
Принадлежит: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

The present disclosure provides a plunger type water pump, which mainly comprises a cavity body, a rotary main shaft and a plunger flow-distributing unit. The plunger distributing unit comprises a flat valve assembly, a plunger-shoe assembly and a supporting valve assembly; the plunger-shoe assembly divides the cavity body into a high-pressure cavity and a low-pressure cavity independent of each other; the high-pressure cavity is in fluid communication with the flat valve assembly; and the low-pressure cavity is in fluid communication with the supporting valve assembly. According to the present disclosure, the high-pressure water and the low-pressure water are independent of each other. This can ensure a high volumetric efficiency of the water pump under ultra-high-pressure conditions and surely provide the fluid supporting and lubrication for a friction coupling under high-speed heavy-load conditions so as to prolong the service life of the water pump.

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Номер записи: 4
04-10-2012 дата публикации

Swash plate type variable displacement compressor

Номер: US20120247319A1
Автор: Masaki Ota, Nobuaki Hoshino, Noriyuki Shintoku, Yoshio Kimoto, Yusuke Yamazaki
Принадлежит: Toyota Industries Corp

A housing has a peripheral wall that surrounds a crank chamber. The peripheral wall has a valve chamber that is recessed radially inward from an outer surface of the peripheral wall with respect to the axis. A bimetal member, which deforms in correspondence with the temperature in the crank chamber, is arranged in the valve chamber. A valve body, which is supported by the bimetal member, is arranged in the valve chamber. The peripheral wall has a first oil discharge passage and allows communication between the crank chamber and the valve chamber, and a second oil discharge passage through which the valve chamber and a suction chamber communicate with each other. When the temperature in the crank chamber exceeds a predetermined value and deforms the bimetal member to move the valve body, communication between the first and second oil discharge passage is permitted through the valve chamber.

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Номер записи: 5
04-10-2012 дата публикации

Control Valve and Variable Capacity Swash-Plate Type Compressor Provided with same

Номер: US20120251343A1
Автор: Yukihiko Taguchi
Принадлежит: Sanden Corp

[Object of the Invention] An object of the present invention is to provide a control valve that accommodates a pressure sensitive unit in a solenoid unit and is of simple structure. [Disclosure of the Invention] A control valve for opening and closing a fluid passage comprises a pressure sensitive unit provided with a bellows for receiving outside fluid pressure to expand and retract, a valve body for opening and closing a fluid passage in response to the expansion and retraction of the bellows, and a solenoid unit for applying electromagnetic force to the valve body, wherein the pressure sensitive unit is disposed in the solenoid unit, the pressure sensitive unit comprises a movable end member made of ferromagnetic material at one end of the bellows and a fixed end member made of ferromagnetic material at the other end of the bellows, the movable end member and the fixed end member oppose each other with a predetermined distance disposed between them, and the movable end member and the fixed end member form a part of the magnetic circuit of the solenoid unit.

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Номер записи: 6
06-12-2012 дата публикации

Electronic control valve having an integral non-contact noise mitigation device

Номер: US20120305822A1
Автор: Ernesto J. Gutierrez, John A. Barrett, Joseph M. Bona, Matthew R. Warren, Timothy J. Skinner
Принадлежит: Delphi Technologies Inc

An electronic control valve having a valve stationary portion defining a substantially central bore extending along an axis of the valve, and a valve train including a movable member of the valve. The valve train moveable member is disposed in the central bore, and the valve train is adapted for reciprocal movement along the axis. A mass is engaged is with the valve train and adapted for reciprocal movement along the axis. A biasing means is disposed between the valve train and the mass. Reciprocal movements of the mass along the axis induced by forces exerted along the axis by the valve train are transmitted through the biasing means, whereby reciprocal movement of the valve train along the axis is dynamically reduced by the mass.

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Номер записи: 7
28-02-2013 дата публикации

Air compression method and apparatus

Номер: US20130047595A1
Автор: Amir Khajepour, Amir M. Fazell, Cecile Devaud, Nasser Lashgarian Azad
Принадлежит: Individual

In a traditional hybrid air engine it is complicated to adjust valve timing to compensate for different engine operating modes. Provided is an air compression method and apparatus. The air compression method can be carried out in a single stage with a plurality of air tanks ( 61, 63 ) coupled to a compressor ( 51 ). The compressor ( 51 ) may be a cylinder Air is added to the compressor ( 51 ) at atmospheric pressure. Pressurized air is then added to the compressor ( 51 ) from a low pressure air tank ( 61 ). The compressor ( 51 ) compresses the air and transfers a portion of it to a high pressure air tank ( 63 ). The remaining portion of the compressed air is transferred to the low pressure air tank ( 61 ) for use in the next compression cycle A cam shaft ( 27 ) having a two stroke cam ( 93 ) and a four stroke cam ( 95 ) for each intake valve ( 59 ) and exhaust valve ( 55, 57 ) is provided to control valve timing during different operating modes.

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Номер записи: 8
28-03-2013 дата публикации

Clutch water pump, control system thereof, and control method thereof

Номер: US20130075220A1
Автор: Jong Ho Lee, Seogjin Yoon, Yoonghwa Park
Принадлежит: Hyundai Motor Co, Kia Motors Corp

A clutch water pump may include a pulley, a brake pad attached on an interior surface of the clutch compartment of the pulley, a clutch disk disposed corresponding to the brake pad in the clutch compartment, a hub rotatably mounted into the penetrating hole and coupled to the clutch disk through a plurality of spring pins, the plurality of spring pins connecting slidably the clutch disk to the hub, a magnetic actuator fixed to the hub and disposed to the clutch disk to selectively move the clutch disk toward or away from the brake pad, and a main shaft, one end of which is fixed to the center of the hub and the other end of which is fixed to an impeller. Furthermore, a method of controlling the clutch water pump according to the engine rotation speed, the coolant temperature, and a condition of the coolant temperature sensor is provided.

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Номер записи: 9
28-03-2013 дата публикации

Port closing device for compressor

Номер: US20130075405A1
Автор: Hiroshi Saito, Mamoru Kuwahara, Mitsunori Yoshida
Принадлежит: Toyota Industries Corp

There is provided a port closing device for a compressor which is fixed to a housing of the compressor by a bolt and includes a packing and a cap. The packing closes a suction port or a discharge port formed in the housing. The packing has a first end, a second end and a peripheral surface formed between the first end and the second end. The first end of the packing has a flat seal portion that is in contact with a surface of the housing surrounding the port. The cap has a holding portion that presses the peripheral surface of the packing for holding the packing, and a pressing portion that presses the second end of the packing. The pressing portion of the cap has therethrough a hole.

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Номер записи: 10
28-03-2013 дата публикации

Compressor

Номер: US20130078126A1
Автор: Fumitaka Yoshizumi, Hajime Kurita, Katsuji Abe, Kazunori Yoshida, Masahiro Hamanaka, Masakatsu Kuroishi, Masakazu Hashimoto, Masakazu Obayashi, Takayuki Inoue, Yasuhiro Kondoh
Принадлежит: Tokyu Co Ltd, Toyota Industries Corp

A compressor includes a discharge chamber, compressor chamber, valve plate, and discharge reed valve. The valve plate includes a fixing surface, exposed to the discharge chamber, and a discharge port, which communicates the discharge chamber and the compression chamber. The discharge reed valve includes a fixed portion, fixed to the fixing surface, a base portion, separable from the valve plate, and a valve portion, which closes the discharge port. The valve plate includes an annular seal surface, recessed groove, receiving surface, and support surface. The seal surface contacts the valve portion around the discharge port. The recessed groove is arranged in the fixing surface outward from the seal surface. The receiving surface is flush with the fixing surface and contacts a distal region of the valve portion. The support surface is flush with the fixing surface and contacts a central region of the valve portion.

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Номер записи: 11
02-05-2013 дата публикации

Motor-driven compressor

Номер: US20130108485A1
Автор: Ken Suitou, Tsuyoshi Yamaguchi, Yusuke Kinoshita
Принадлежит: Toyota Industries Corp

A motor-driven compressor includes a compression mechanism compressing refrigerant gas, an electric motor driving the compression mechanism, a housing made of a thermally conductive material and accommodating the compression mechanism and the electric motor and an inverter assembly controlling rotation of the electric motor. The inverter assembly includes an elastic member made of a thermally conductive material and disposed in contact with the housing, a circuit board supported directly by the elastic member, an electronic part mounted on the circuit board and a base member made of a thermally conductive material, fixed to the housing and having a closed end. The base member fixes the electronic part. The base member and the housing cooperate to form an accommodation space that accommodates the elastic member, the circuit board and the electronic part. The closed end of the base member and the elastic member forms therebetween a space.

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Номер записи: 12
23-05-2013 дата публикации

Displacement control valve

Номер: US20130126017A1
Автор: Hideki Higashidozono, Keigo Shirafuji, Masaki Ota, Naoki Nishimura, Noriyuki Shintoku, Ryo Matsubara, Toshinori Kanzaki
Принадлежит: Eagle Industry Co Ltd, Toyota Industries Corp

A displacement control valve includes an electromagnetic solenoid, a drive force transmitting body actuated, and a pressure sensitive portion having a pressure sensitive body that selectively extends and contracts in the movement direction of the drive force transmitting body in correspondence with pressure in a pressure sensitive chamber. A first valve body is arranged in the pressure sensitive body to adjust the cross-sectional area of an outlet passage. A second valve body is connected to the drive force transmitting body to adjust the cross-sectional area of a supply passage. The pressure sensitive body is movable in the movement direction of the drive force transmitting body in the pressure sensitive chamber. The pressure sensitive chamber is configured to communicate with the control pressure chamber. The pressure sensitive body is urged by the pressure in the control pressure chamber in the direction in which the first valve body closes.

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Номер записи: 13
23-05-2013 дата публикации

Compressor

Номер: US20130129546A1
Автор: Fumitaka Yoshizumi, Hajime Kurita, Katsuji Abe, Kazunori Yoshida, Masakatsu Kuroishi, Masakazu Hashimoto, Masakazu Obayashi, Takayuki Inoue, Yasuhiro Kondoh, Yasushi Suzuki, Yoshio Kimoto
Принадлежит: Tokyu Co Ltd, Toyota Industries Corp

A compressor includes a valve base plate, which is arranged between a suction chamber and a compression chamber and has a suction port. The valve base plate includes a sealing surface, a recessed groove, a receiving surface, and a support surface. The sealing surface is flush with a fixing surface and contacts the valve portion in an annular manner. The recessed groove is located at an outer side of the sealing surface and recessed with respect to the fixing surface. The recessed groove includes a bottom portion and separates an edge portion of the valve portion from the bottom portion. The receiving surface is flush with the fixing surface and capable of contacting a distal zone of the valve portion. The support surface is flush with the fixing surface and capable of contacting a middle zone located at an inner side of the sealing surface of the valve portion.

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Номер записи: 14
11-07-2013 дата публикации

Swash plate for swash plate compressor and swash plate compressor

Номер: US20130174724A1
Автор: Naonari Tanigawa, Norikazu Muneda, Yoshio Oki
Принадлежит: NTN Corp

The present invention provides a swash plate, for a swash plate compressor, which is excellent in a resistance to the occurrence of seizing in a condition where an extreme pressure is generated owing to local contact between the swash plate and a shoe which slides thereon and in a condition where lubricating oil is depleted, capable of preventing cavitation-caused erosion of a resin film when the swash plate is operated at a high surface pressure and a high speed in the presence of the lubricating oil and the swash plate compressor having the swash plate. A swash plate ( 3 ) for a swash plate compressor is so constructed that inside a housing ( 1 ) where a refrigerant is present, the refrigerant is compressed and expanded by converting a rotational motion of the swash plate ( 3 ) mounted perpendicularly and obliquely on a rotational shaft ( 2 ) by directly fixing the swash plate ( 3 ) to the rotational shaft ( 2 ) or indirectly fixing the swash plate ( 3 ) to the rotational shaft ( 2 ) through a coupling member into a reciprocating motion of a piston ( 5 ) through a shoe ( 4 ) which slides on the swash plate ( 3 ) into a reciprocating motion of a piston ( 5 ) through a shoe ( 4 ) which slides on the swash plate ( 3 ). A resin film containing 25 to 70 parts by weight of fluororesin and 1 to 20 parts by weight of graphite for 100 parts by weight of matrix resin and having a tensile shear adhesive strength not less than 25 MPa is formed on a sliding contact surface of the swash plate ( 3 ) on which the shoe ( 4 ) slides.

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Номер записи: 15
10-04-2014 дата публикации

Capacity control valve

Номер: US20140099214A1
Автор: Hideki Higashidouzono, Kohei Fukudome, Masayuki Futakuchi
Принадлежит: Eagle Industry Co Ltd

In a capacity control valve, a discharged-fluid-receiving part having a diameter that is larger than the diameter of a valve hole interconnecting a first valve chamber and a third valve chamber is provided to the outer periphery section of a third valve part. It is thereby possible to obtain a capacity control valve in which, when the first valve part opens, the discharged-fluid-receiving part receives the pressure of the discharged fluid, the actuation response of the valve body during an opening action is moderated, an excessive increase in the sensitivity to a rise in pressure in the crank chamber caused by a rapid increase in the amount of coolant flowing into the crank chamber is prevented, and the action of the valve body is stable.

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Номер записи: 16
06-01-2022 дата публикации

CAPACITY CONTROL VALVE

Номер: US20220003331A1
Автор: EJIMA Takahiro, Fukudome Kohei, Hayama Masahiro, SHIRAFUJI Keigo
Принадлежит:

A capacity control valve includes: valve housings provided with a discharge port, a suction port, and a control port; and a main valve configured to open and close a communication between the discharge port and the control port as a rod driven by a solenoid moves. The capacity control valve further includes: a pressure drive unit disposed in a suction fluid supply chamber, operated by a suction pressure Ps, and coupled to the main valve body so as to be movable together; and a CS valve having a CS valve seat and a CS valve body to open and close a communication between the control port and the suction port. The CS valve body is movable relative to the main valve body. Upon the movement of the rod in a closed state of the main valve, the main valve body and the CS valve body move together. 1: A capacity control valve comprising:a valve housing provided with a discharge port through which a discharge fluid at a discharge pressure passes, a suction port through which a suction fluid at a suction pressure passes, and a control port through which a control fluid at a control pressure passes;a rod driven by a solenoid;a main valve that includes a main valve seat and a main valve body to open and close a communication between the discharge port and the control port in accordance with a movement of the rod;a pressure drive unit disposed in a suction fluid supply chamber which is formed in the valve housing and to which the suction fluid is supplied, the pressure drive unit being operated by the suction pressure and coupled to the main valve body so as to be movable together; anda CS valve that includes a CS valve seat and a CS valve body to open and close a communication between the control port and the suction port, the CS valve body being disposed so as to be movable relative to the main valve body,whereinupon the movement of the rod moves in a closed state of the main valve, the main valve body and the CS valve body move together.2: capacity control valve according to ...

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Номер записи: 17
07-01-2016 дата публикации

SWASH PLATE TYPE VARIABLE DISPLACEMENT COMPRESSOR

Номер: US20160003227A1
Автор: Suzuki Takahiro, Yamamoto Shinya, YAMASHITA Hideharu
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

A swash plate type variable displacement compressor includes a housing having therein a suction chamber, a discharge chamber, a swash plate chamber and a cylinder bore. The compressor further includes a drive shaft and a swash plate that is mounted on the drive shaft for rotation therewith. The compressor further includes a link mechanism, a piston, a conversion mechanism, an actuator and a control mechanism. The actuator includes a partitioning body, a moving body and a pressure control chamber formed between the partitioning body and the moving body into which a refrigerant is introduced from the discharge chamber for moving the moving body. A connecting member and a connecting unit are disposed on radially opposite side of the drive shaft. The compressor further has an urging member that urges the moving body that reduces the inclination angle of the swash plate. 1. A swash plate type variable displacement compressor comprising:a housing having a suction chamber, a discharge chamber, a swash plate chamber and a plurality of cylinder bores;a drive shaft rotatably supported in the housing;a swash plate mounted on and rotatable with the drive shaft in the swash plate chamber;a link mechanism provided between the drive shaft and the swash plate and permitting changing of an inclination angle of the swash plate relative to an imaginary plane extending perpendicularly to an axis of the drive shaft;a plurality of pistons reciprocally movably received in the respective cylinder bores;a conversion mechanism converting the rotation of the swash plate to reciprocal motion of the pistons with a stroke length that is determined in accordance with the inclination angle of the swash plate;an actuator disposed in the swash plate chamber to change the inclination angle; anda control mechanism controlling the actuator;wherein the actuator includes a partitioning body that is mounted on the drive shaft, a moving body that is movable along the axis of the drive shaft relative to the ...

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Номер записи: 18
03-01-2019 дата публикации

Subassembly For A Compressor

Номер: US20190003467A1
Автор: Domke Daniel, Heute Steffen, Moritz Martin, Scherner Simon
Принадлежит: TE Connectivity Germany GmbH

A subassembly for a compressor controls a fluid flow of a fluid between a high-pressure region and a crank chamber pressure region and between the crank chamber pressure region and a suction pressure region of the compressor. The subassembly includes a first electrical control valve, a second electrical control valve, and an electrical control device. Each of the first electrical control valve and the second electrical control valve has a valve member arranged within a valve housing and displaceable between a pair of positions. The electrical control device is adapted to control, during operation of the compressor, a fluid flow between the high-pressure region and a crank chamber pressure region and between the crank chamber pressure region and the suction pressure region by controlling the positions of the valve members. 1. A subassembly for a compressor that controls a fluid flow of a fluid between a high-pressure region and a crank chamber pressure region and between the crank chamber pressure region and a suction pressure region of the compressor , comprising: a first valve housing with a plurality of first connections for the high-pressure region and for the crank chamber pressure region, and', 'a first valve member arranged within the first valve housing and which can be displaced between a pair of first positions in which the first valve member either connects the high-pressure region and the crank chamber pressure region to each other or separates the high-pressure region and the crank chamber pressure region from each other;, 'a first electrical control valve having a second valve housing with a plurality of second connections for the crank chamber pressure region and for the suction pressure region, and', 'a second valve member which is arranged within the second valve housing and which can be displaced between a pair of second positions in which the second valve member either connects the crank chamber pressure region and the suction pressure region or ...

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Номер записи: 19
20-01-2022 дата публикации

VARIABLE STROKE PUMP

Номер: US20220018339A1
Автор: Anderson Milton, Embry, JR. Ronald G., Wang Jianke, Wise Leslie, Zhai Xiaonan
Принадлежит: CW HOLDINGS LTD

A variable stroke high pressure pump is disclosed. The pump uses a wobble plate design with dynamically variable tilt to provide continuous adjustment of pump stroke length and output. Dynamically variable tilt is accomplished using a linearly actuated tilt thruster rotationally coupled to the drive shaft to maintain a selected tilt of the wobble plate through the rotation of the wobble plate. 1. A pump , comprising:a drive shaft;a wobble plate attached to the drive shaft by a swivel mount to rotate with the drive shaft;a plurality of displacement rods, each having a first end and a second end, with the first end of each displacement rod coupled to a first surface of the wobble plate and the second end of each displacement rod connected with a plunger; anda tilt actuator assembly slidably attached to the drive shaft to rotate with the drive shaft, the tilt actuator assembly comprising a slider coupled to a linear actuator and a thruster coupled to the slider and extending toward a second surface of the wobble plate opposite the first surface.2. The pump of claim 1 , further comprising a thrust bearing between each displacement rod and the wobble plate.3. The pump of claim 1 , wherein the swivel mount is ball-shaped.4. The pump of claim 3 , wherein the wobble plate is attached to the drive shaft using a key.5. The pump of claim 4 , further comprising a retainer plate that contacts the wobble plate and the swivel mount.6. The pump of claim 1 , further comprising a bearing plate between the wobble plate and the fluid manifold claim 1 , the bearing plate having a bore for each displacement rod and a bearing disposed in each bore.7. The pump of claim 1 , wherein the slider is a crosshead attached to the drive shaft by a guide ring.8. The pump of claim 1 , wherein the linear actuator comprises a hydraulic actuator.9. The pump of claim 1 , further comprising a thrust bearing between the linear actuator and the slider.10. A pump claim 1 , comprising:a drive shaft ;a wobble ...

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Номер записи: 20
14-01-2021 дата публикации

VARIABLE-CAPACITY COMPRESSOR CONTROL VALVE [AS AMENDED]

Номер: US20210010466A1
Автор: ASANO Hisashi, ITOH Masaharu, KUME Yoshiyuki, Sakamoto Takashi
Принадлежит: FUJIKOKI CORPORATION

Provided is a variable-capacity compressor control valve with a reduced number of components and thus with a reduced cost, and also with stabilized controllability. A pushrod is disposed between a bellows device, which is a pressure-sensitive reaction member, and a sub valve element, and a plunger spring (i.e., an urging member) adapted to urge the sub valve element and the pushrod in directions away from each other is disposed between the sub valve element and the pushrod so as to urge the sub valve element in the direction to close the in-valve release passage and hold the bellows device within the pressure-sensitive chamber via the pushrod. 1. A variable-capacity compressor control valve comprising:a valve body including a valve chamber with a valve orifice, a Ps inlet/outlet port communicating with a suction chamber of a compressor, a Pd introduction port arranged upstream of the valve orifice and communicating with a discharge chamber of the compressor, and a Pc inlet/outlet port arranged downstream of the valve orifice and communicating with a crank chamber of the compressor;a main valve element adapted to open or close the valve orifice;an electromagnetic actuator including a plunger and an attractor, the electromagnetic actuator being adapted to move the main valve element in a direction to open or close the valve orifice;a pressure-sensitive chamber adapted to receive a suction pressure Ps from the compressor via the Ps inlet/outlet port; anda pressure-sensitive reaction member adapted to urge the main valve element in the direction to open or close the valve orifice in accordance with a pressure in the pressure-sensitive chamber,wherein:the main valve element includes an in-valve release passage for releasing a pressure Pc in the crank chamber to the suction chamber of the compressor via the Ps inlet/outlet port,a sub valve element adapted to open or close the in-valve release passage is provided,when the plunger is moved upward from its lowest position by ...

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Номер записи: 21
22-01-2015 дата публикации

DOUBLE-HEADED PISTON TYPE SWASH PLATE COMPRESSOR

Номер: US20150023810A1
Автор: HONDA Kazunari, NISHII Kei, OTA Masaki, YAMAZAKI Yusuke
Принадлежит:

A double-headed piston type swash plate compressor includes first and second cylinder blocks, a rotation shaft, a double-headed piston, a crank chamber, a drive force transmission member, a swash plate, a movable body, a control pressure chamber, and a support. The control pressure chamber is defined by the movable body in the housing. The control pressure chamber moves the movable body in the axial direction of the rotation shaft. The support is located on the swash plate and supported by the rotation shaft. The drive force transmission member and the movable body are located at a first side of the swash plate in the axial direction of the rotation shaft, and the support is located at a second side of the swash plate. The drive force transmission member, the movable body, and the support set the inclination angle of the swash plate relative to the rotation shaft. 1. A double-headed piston type swash plate compressor comprising:a first cylinder block and a second cylinder block that form a housing, wherein the first cylinder block includes a first cylinder bore, and the second cylinder block includes a second cylinder bore;a rotation shaft;a double-headed piston accommodated in the first cylinder bore and the second cylinder bore, wherein the double-headed piston is movable back and forth in the first cylinder bore and the second cylinder bore;a crank chamber;a drive force transmission member accommodated in the crank chamber and fixed to the rotation shaft, wherein the drive force transmission member is rotatable integrally with the rotation shaft;a swash plate accommodated in the crank chamber, wherein the swash plate is rotated when receiving drive force from the rotation shaft through the drive force transmission member, the swash plate is inclined at an angle relative to the rotation shaft that is changeable, the swash plate is coupled to the double-headed piston, and the double headed piston moves back and forth with a stroke that is in accordance with the ...

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Номер записи: 22
28-01-2016 дата публикации

SWASH PLATE TYPE VARIABLE DISPLACEMENT COMPRESSOR

Номер: US20160025084A1
Автор: FUJIWARA Shohei, NISHII Kei, OGAWA Hiromichi, Yamamoto Shinya
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

A swash plate type variable displacement compressor includes a housing having therein a suction chamber, a discharge chamber a swash plate chamber and a cylinder bore. The compressor further includes a drive shaft, a swash plate and a link mechanism provided between the drive shaft and the swash plate. The compressor further includes a piston, a conversion mechanism, an actuator and a control mechanism. The actuator includes a partitioning member and a moving member, and a pressure control chamber formed therebetween. A support member is fitted on the drive shaft, and the contact of the support member with the moving member determines maximum inclination angle of the swash plate. A thrust bearing supports a thrust force. The support member includes a cylindrical portion that projects beyond the one end of the drive shaft. The position of the cylindrical portion is adjustable in the direction of the drive shaft. 1. A swash plate type variable displacement compressor comprising:a housing having a suction chamber, a discharge chamber, a swash plate chamber and a plurality of cylinder bores;a drive shaft rotatably supported in the housinga swash plate disposed in the swash plate chamber and rotatable with the drive shaft;a link mechanism provided between the drive shaft and the swash plate and permitting changing an inclination angle of the swash plate to an imaginary plane extending perpendicularly to an axis of the drive shaft;a plurality of pistons reciprocally movably received in the respective cylinder bores;a conversion mechanism converting the rotation of the swash plate to the reciprocal motion of the pistons with a stroke length that is variable according to the inclination angle of swash plate;an actuator disposed in the swash plate chamber to change the inclination angle; anda control mechanism controlling the actuator;wherein the actuator includes a partitioning member mounted on the drive shaft, a moving member connected to the swash plate, mounted on the ...

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Номер записи: 23
26-01-2017 дата публикации

POROUS OIL FLOW CONTROLLER

Номер: US20170022984A1
Автор: Bhatia Kanwal, White Steven C.
Принадлежит:

A compressor comprises a housing having a hollow interior for communicating a fluid comprising a mixture of a gas and a lubricant therethrough. The hollow interior of the housing is divided into a low pressure side and a high pressure side. The low pressure side is disposed upstream of compression mechanism and the high pressure side is disposed downstream of the compression mechanism. A porous flow controller fluidly couples the high pressure side to the low pressure side. The porous flow controller is configured to meter a flow of the lubricant from the high pressure side to the low pressure side. 1. A compressor comprising:a housing having a hollow interior for communicating a fluid therethrough, the hollow interior of the housing divided into a low pressure side and a high pressure side; anda porous flow controller fluidly coupling the high pressure side to the low pressure side, wherein the porous flow controller is configured to meter a flow of the fluid from the high pressure side to the low pressure side.2. The compressor of claim 1 , further comprising a compression mechanism claim 1 , wherein the low pressure side is disposed upstream of the compression mechanism in a direction of flow of the fluid and the high pressure side is disposed downstream of the compression mechanism.3. The compressor of claim 1 , wherein an oil separator is disposed in the high pressure side upstream of the porous flow controller in a direction of flow of the fluid.4. The compressor of claim 1 , wherein the fluid comprises a mixture of a gaseous refrigerant and an oil.5. The compressor of claim 4 , wherein a portion of the fluid being metered by the porous flow controller comprises a higher percentage of the oil by volume than the gaseous refrigerant.6. The compressor of claim 4 , wherein the oil flows directly from the high pressure side to the low pressure side through the porous flow controller.7. The compressor of claim 1 , wherein the porous flow controller is formed in one ...

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Номер записи: 24
10-02-2022 дата публикации

SWASH PLATE COMPRESSOR

Номер: US20220042503A1
Автор: Ahn Hew Nam, Jeong You Cheol, PARK Bok Ki, Son Eun Gi, Yun Je Su
Принадлежит:

A swash plate compressor including a cylinder block accommodating a piston for compressing a refrigerant, a front housing coupled to the front of the cylinder block and having a crank chamber, a rear housing having a suction chamber and a discharge chamber and coupled to the rear of the cylinder block. The swash plate compressor includes a valve assembly with a valve plate inserted into the rear housing, a gasket in the cylinder block, a suction plate between the valve plate and the cylinder block, a variable orifice module having a first orifice hole for refrigerant passing, a second orifice hole communicating with the suction chamber to discharge the refrigerant passing through the first orifice hole to the suction chamber, and an intermediate passage connecting the orifice holes, the first orifice hole having a variable reed, a degree of opening of which is varied depending on the refrigerant pressure. 1. A swash plate compressor comprising:a cylinder block;a front housing coupled to the front of the cylinder block and having a crank chamber;a rear housing coupled to the rear of the cylinder block and having a suction chamber;a drive shaft rotatably supported on the cylinder block;a swash plate accommodated in the crank chamber and rotated with the drive shaft;a piston reciprocating within a cylinder bore of the cylinder block by the swash plate; anda valve assembly for communicating and blocking the suction chamber and the cylinder bore,wherein the valve assembly comprises a first valve plate interposed between the cylinder block and the rear housing and a suction plate provided on the cylinder block side with respect to the first valve plate,wherein the suction plate comprises a first orifice hole communicating with the crank chamber and a variable reed adjusting an opening amount of the first orifice hole,wherein the first valve plate comprises a second orifice hole communicating with the suction chamber and a reed groove communicating the first orifice hole ...

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Номер записи: 25
24-01-2019 дата публикации

Compressor

Номер: US20190024652A1
Автор: Akito OHATA, Hideaki Ikeda, Hikaru UCHIDA
Принадлежит: Hitachi Industrial Equipment Systems Co Ltd

According to the present invention, there is provided a compressor including: a piston reciprocated in a cylinder; a valve seat plate provided with a port through which a fluid passes along with the reciprocation of the piston; a valve provided in the valve seat plate to open/close the port; a valve receiver regulating the degree of opening of the valve; and a stress suppression member provided between the valve and the valve receiver, wherein the stress suppression member includes a valve exposing portion exposing the valve.

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Номер записи: 26
28-01-2021 дата публикации

VARIABLE-CAPACITY COMPRESSOR CONTROL VALVE

Номер: US20210025512A1
Автор: ITOH Masaharu, Sakamoto Takashi, SHIMADA Kenki, TANO Shintaro
Принадлежит: FUJIKOKI CORPORATION

A variable-capacity compressor control valve that can efficiently cancel the influence of the refrigerant pressure acting on a main valve element and avoid increase in complexity of the structure and size of the control valve is provided. A pressure equalizing passage is provided which is adapted to guide a pressure Pc in a crank chamber acting on the lower end of a main valve element to a pressure-sensitive chamber so that the pressure Pc in the crank chamber acts on the upper end of the main valve element. When an electromagnetic actuator or a solenoid portion thereof is not supplied with current i.e., when a valve orifice is fully open, the introduction of a suction pressure Ps from Ps inlet/outlet ports Ps inlet/outlet chamber into the pressure-sensitive chamber is stopped, and the pressure Pc in the crank chamber is introduced into the pressure-sensitive chamber via the pressure equalizing passage so that the pressure Pc in the crank chamber acts on the upper and lower ends of the main valve element. 1. A variable-capacity compressor control valve , comprising:a main valve element including a main valve element portion; a valve chamber with a valve orifice, the valve orifice being adapted to be in contact with or away from the main valve element portion,', 'a Ps inlet/outlet port communicating with a suction chamber of a compressor,', 'a Pd introduction port arranged upstream of the valve orifice and communicating with a discharge chamber of the compressor, and', 'a Pc inlet/outlet port arranged downstream of the valve orifice and communicating with a crank chamber of the compressor;, 'a valve body including'}an electromagnetic actuator including a plunger, the electromagnetic actuator being adapted to move the main valve element in a direction to open or close the valve orifice;a pressure-sensitive chamber adapted to receive a suction pressure Ps from the compressor via the Ps inlet/outlet port; anda pressure-sensitive reaction member adapted to urge the main ...

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Номер записи: 27
02-02-2017 дата публикации

Compressor, compressor housing, and method for manufacturing compressor housing

Номер: US20170030343A1
Автор: Shinya Yamamoto, Shu OKASAKA
Принадлежит: Sumitomo Bakelite Co Ltd

A housing ( 10 ) of a compressor ( 1 ) according to the present embodiment includes at least one compression chamber ( 101 ) that compresses a gas aspirated into the inside thereof and is composed of a metal-resin composite ( 16 ) in which a resin member ( 14 ) composed of a thermosetting resin composition and a metal member ( 12 ) are bonded to each other. In a case where the metal-resin composite ( 16 ) is made into a test piece in which the resin member ( 14 ) having a thickness d 1 and the metal member ( 12 ) having a thickness d 2 are laminated on and bonded to each other and a ratio of d 1 /d 2 is 3, and the test piece is put in a first state where the test piece is disposed, the surface on the resin member ( 14 )-exposed side up, on two supports with no stress applied thereto and a second state where a 1-point bending stress of 140 MPa is applied in a thickness direction to the center of the surface on the resin member ( 14 ) side such that the center caves in after the first state, when putting in the first and second states is alternately repeated 1,000,000 times at a frequency of 30 Hz under a temperature condition of 25° C., the metal-resin composite exhibits bending fatigue resistance in which neither peeling nor fracture occurs.

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Номер записи: 28
02-02-2017 дата публикации

SEALED CAVITY COMPRESSOR TO REDUCE CONTAMINANT INDUCTION

Номер: US20170030346A1
Автор: Brown Jeff, Goldensoph Gerin
Принадлежит: Carleton Life Support Systems Inc.

A cam driven compressor includes a cam coupled to a plurality of cylinder and piston assemblies. Each cylinder and piston assembly comprises a piston located and movable within a respective cylinder. Each cylinder has a cylinder head. The compressor comprises a housing defining a cavity configured to receive a portion of a source gas from one or more of the cylinders in order to maintain a positive gas pressure within the cavity. 1. A cam driven compressor , wherein a cam is coupled to a one or more cylinder and piston assemblies wherein each cylinder and piston assembly comprises a piston located and movable within a respective cylinder , each cylinder having a cylinder head , the compressor comprising a housing defining a cavity configured to receive a portion of a source gas from one or more of the cylinders.2. The cam driven compressor of claim 1 , wherein the cam is coupled to a plurality of cylinder and piston assemblies claim 1 , wherein a first cylinder is a low pressure cylinder and wherein a portion of the source gas within the first cylinder is directed into the cavity.3. The cam driven compressor of claim 2 , wherein the housing includes a pressure relief valve adapted to prevent over-pressurization of the housing.4. The cam driven compressor of claim 3 , wherein the pressure relief valve has a maximum pressure limit of about 1 psig.5. The cam driven compressor of wherein the cavity is filled with the portion of the source gas at a flow rate of about 200 scc/m.6. The cam driven compressor of claim 2 , wherein the housing is selected to have a positive cavity pressure of about 1 psig.7. A method of producing a high purity high pressure gas claim 2 , comprising:a) providing a cam driven compressor, wherein a cam is coupled to a one or more cylinder and piston assemblies wherein each cylinder and piston assembly comprises a piston located and movable within a respective cylinder, each cylinder having a cylinder head, the compressor comprising a housing ...

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Номер записи: 29
04-02-2016 дата публикации

VARIABLE DISPLACEMENT SWASH PLATE TYPE COMPRESSOR

Номер: US20160032910A1
Автор: HONDA Kazunari, NISHII Kei, OTA Masaki, Suzuki Takahiro, Yamamoto Shinya, YAMASHITA Hideharu, YAMAZAKI Yusuke
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Provided is a compressor, in which discharge capacity is changed by an actuator, exhibiting high controllability while realizing reduction in size. In the compressor, a movable body includes a rear wall, a circumferential wall, and a coupling mechanism. The coupling mechanism includes a first arm provided with a first pulling point and a second arm provided with a second pulling point. In the compressor, when the inclination angle of a swash plate is increased, the movable body pulls the swash plate via the first and second arms. At this time, in the compressor, pulling force can be applied at two points, i.e., at the first pulling point and the second pulling point. Consequently, in the compressor, even when the size of the rear wall and the circumferential wall is increased, the rigidity of the first and second arms can be made lower. 1. A variable displacement swash plate type compressor comprising:a housing in which a suction chamber, a discharge chamber, a swash plate chamber, and at least one cylinder bore are formed;a drive shaft extending along a drive axis and rotatably supported in the housing;a swash plate rotatable in the swash plate chamber along with rotation of the drive shaft;a link mechanism that is provided between the drive shaft and the swash plate and permits change of an inclination angle of the swash plate in a direction perpendicular to the drive axis of the drive shaft;a piston reciprocally accommodated in the cylinder bore;a conversion mechanism that reciprocates the piston in the cylinder bore along with rotation of the swash plate at a stroke corresponding to the inclination angle;an actuator that is disposed in the swash plate chamber and capable of changing the inclination angle; anda control mechanism that controls the actuator, whereinthe suction chamber and the swash plate chamber communicate with each other,the actuator includes a partition body provided on the drive shaft, a movable body that is coupled to the swash plate via a ...

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Номер записи: 30
01-02-2018 дата публикации

DOUBLE-HEADED SWASH TYPE COMPRESSOR AND METHOD FOR MANUFACTURING CYLINDER BLOCK

Номер: US20180030970A1
Автор: Hwang Seung Yong, Kim Min Gyu, KIM Sang Ho, Yoon Duck Bin
Принадлежит:

Disclosed herein is a double-headed swash type compressor, and a distance between an outer peripheral surface of a shaft () and an inner peripheral surface of a shaft bore () is greater than a distance between the outer peripheral surface of the shaft () and an inner peripheral surface of a journal bearing (). 133-. (canceled)34. A double-headed swash type compressor comprising:a cylinder block including an annular array of piston bores formed therethrough, a plurality of pistons reciprocatingly received in the piston bores, a suction space formed therein, and a shaft bore formed therethrough, the shaft bore having a plurality of refrigerant supply holes formed therein, the plurality of refrigerant supply holes communicating with a plurality of compression chambers defined by the piston bores and the plurality of pistons;a first housing coupled to a first side of the cylinder block;a second housing coupled to a second side of the cylinder block;a shaft received in the shaft bore, the shaft including a passage formed therein configured to receive a refrigerant, a refrigerant introduction hole in fluid communication with the suction space and configured to introduce the refrigerant into the passage, and a refrigerant discharge hole configured to discharge the refrigerant from the passage;a swash plate coupled to the shaft in an oblique position with respect to the shaft, the swash plate operatively coupled to the plurality of pistons; anda journal bearing disposed between an inner surface of the shaft bore and outer surface of the shaft, the journal bearing formed from a porous material.35. The double-headed swash type compressor of claim 34 , wherein the cylinder block includes a groove portion formed therein claim 34 , the groove portion having a length greater than a length of the journal bearing and receiving the journal bearing therein.36. The double-headed swash type compressor of claim 35 , wherein a step is formed in the groove portion spaced from the journal ...

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Номер записи: 31
01-02-2018 дата публикации

VARIABLE-CAPACITY SWASHPLATE-TYPE COMPRESSOR

Номер: US20180030971A1
Автор: BAE In Pyo, KIM Hyeon Jae, LEE Bong Sub, LEE Geon Ho, LEE Jun Han, Lee Tae Jin
Принадлежит:

A variable-capacity swash plate-type compressor including: a lug plate coupled to a swash plate so as to be fixed to a driving shaft; and the swash plate coupled to the lug plate and having a varying inclination angle while making a rotational motion. The swash plate includes a body, and first and second arms that protrude from the body toward the lug plate and are spaced apart from each other. The lug plate includes a plate, a center lug arm that protrudes from the plate to be inserted between the first and second arms and is coupled to the body of the swash plate, and left and right lug arms that protrude from the plate to be spaced apart from each other and support both sides of each of the first and second arms. 1. A variable-capacity swash plate-type compressor comprising:a lug plate coupled to a swash plate so as to be fixed to a driving shaft; andthe swash plate coupled to the lug plate and having a varying inclination angle while making a rotational motion,wherein the swash plate comprises a body, and first and second arms that protrude from the body toward the lug plate and are spaced apart from each other, andthe lug plate comprises a plate, a center lug arm that protrudes from the plate to be inserted between the first and second arms and is coupled to the body of the swash plate, and left and right lug arms that protrude from the plate to be spaced apart from each other and support both sides of each of the first and second arms.2. The variable-capacity swash plate-type compressor of claim 1 , wherein at least one part of spaces Cand Cbetween the first and second arms of the swash plate and one side of the center lug arm and spaces Cand Cbetween the first and second arms and the left and right lug arms are spaced apart from each other so that a clearance is formed.3. The variable-capacity swash plate-type compressor of claim 2 , wherein claim 2 , when the driving shaft rotates claim 2 , at least one of the left lug arm claim 2 , the right lug arm claim 2 ...

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Номер записи: 32
05-02-2015 дата публикации

Swash plate

Номер: US20150033884A1
Автор: Kyohei Yamane, Masato Shibata, Shingo Goto
Принадлежит: Taiho Kogyo Co Ltd

This swash plate comprises a resin film layer formed on the front surface and the rear surface, and said resin film layer serves as the sliding surface which slides on a shoe. The inner periphery of the resin film layer is a tilted surface which a lubricant can easily cross over. In other words, angle θ1 is 10° or less and angle θ2 of the rising part is set to 20° or less, and when the lubricant is supplied from the inner periphery side of the swash plate, said lubricant easily crosses over said inner periphery which is a tilted surface, and is quickly supplied to the surface (the sliding surface) outside of said inner periphery. Because the lubricant is quickly supplied to the front surface and the rear surface (the sliding surface) of the swash plate, seizure of the swash plate can be prevented.

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Номер записи: 33
31-01-2019 дата публикации

Variable displacement swash plate type compressor

Номер: US20190032648A1
Автор: Akinobu Kanai, Kenji Yamamoto, Noriaki Satake, Shiro Hayashi
Принадлежит: Toyota Industries Corp

A variable displacement swash plate type compressor includes a first and a second valve body, and a suction and a bleed window. An open degree of the suction window is minimized by the first valve body and an open degree of the bleed window is maximized by the second valve body when a suction pressure is lower than a predetermined suction pressure and a crank chamber pressure is higher than a control pressure. The open degree of the suction window is increased and the open degree of the bleed window is maximized when the suction pressure is higher than the predetermined suction pressure and the crank chamber pressure is higher than the control pressure. The open degree of the suction window and the open degree of the bleed window are decreased when the crank chamber pressure is lower than the control pressure.

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Номер записи: 34
30-01-2020 дата публикации

LIQUID DELIVERY DEVICE AND FLUID CHROMATOGRAPH

Номер: US20200032780A1
Автор: YANAGIBAYASHI Jun
Принадлежит: SHIMADZU CORPORATION

A liquid delivery device includes a pump head having a pump chamber provided in the inside, a plunger whose tip is slidably inserted into the pump chamber, and at least one plunger pump having a drive mechanism that reciprocates the plunger in its axial direction. Then, at least one of the plunger pumps is a pressurizing pump that pressurizes a mobile phase including a compressible fluid sucked into the pump chamber and then discharges the mobile phase from the pump chamber, and at least the pump head of the pressurizing pump includes a cooling part that is connected to an outlet channel from the pump chamber, and allows the pump head to absorb heat of the mobile phase discharged from the pump chamber to cool the mobile phase. 110-. (canceled)11. A liquid delivery device comprising:at least one or more plunger pumps, wherein the plunger pumps each include a pump head having a pump chamber provided in an inside, a plunger whose tip is slidably inserted into the pump chamber, and a drive mechanism that reciprocates the plunger in an axial direction thereof, 'at least the pump head of the pressurizing pump includes a cooling part formed by channels connected with an outlet channel of the pump chamber, the cooling part, is configured to cause the pump head to absorb heat of a mobile phase that is discharged from the pump chamber and flows into the channels, and is provided to cool the mobile phase.', 'at least one of the plunger pumps is a pressurizing pump that pressurizes a mobile phase including a compressible fluid sucked into the pump chamber and then discharges the mobile phase from the pump chamber, and'}12. The liquid delivery device according to claim 11 , wherein the channels forming the cooling part are a flat plate-shaped channel in which a ratio of an internal surface area to internal capacity is larger than that of the outlet channel.13. The liquid delivery device according to claim 11 , wherein the channels forming the cooling part are a plurality of ...

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Номер записи: 35
30-01-2020 дата публикации

CAPACITY CONTROL VALVE

Номер: US20200032781A1
Автор: Hayama Masahiro, HIGASHIDOZONO Hideki
Принадлежит:

In an exemplary embodiment, a capacity control valve is provided with a throttle valve portion having a communication hole and a second valve hole A. The communication hole is provided between a second valve portion B and a third valve portion A and makes an intermediate communication passage communicate with a third valve chamber . The second valve hole A is provided between a second valve chamber and the third valve chamber . An amount of narrowing of the throttle valve portion in relation to a stroke of a valve element is large when the second valve portion B initially opens by separating from a second valve seat face A, and then becomes less after the initial opening of the valve. The capacity control valve is capable of shortening a start-up time and improving the operating efficiency of a variable capacity compressor. 1. A capacity control valve controlling , in accordance with a degree of opening of a valve portion , a flow rate or a pressure inside an operation control chamber , the capacity control valve , comprising:a valve body having a first valve chamber, a second valve chamber, and a third valve chamber, the first valve chamber communicating with a first communication passage, through which a fluid under a control chamber pressure passes, and having a first valve seat face and a second valve seat face, the second valve chamber having a first valve hole, which communicates with the first communication passage, and communicating with a second communication passage, through which a fluid under a discharge chamber pressure passes, and the third valve chamber communicating with a third communication passage, through which a fluid under a suction chamber pressure passes;a pressure-sensitive element disposed in the third valve chamber, extending and contracting in reaction to the suction chamber pressure and having a third valve seat face disposed on an extending and contracting free end;a valve element having an intermediate communication passage, a second ...

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Номер записи: 36
04-02-2021 дата публикации

CONTROL DEVICE OF COMPRESSOR, ELECTRONIC CONTROL VALVE USED FOR SAME, ELECTRIC COMPRESSOR COMPRISING SAME

Номер: US20210033080A1
Автор: Domke Daniel, KIM Yong Hee, Kwak Jung Myung, Scherner Simon, Zawadzky Peter
Принадлежит:

A control device of a compressor includes a piston which reciprocates by a swash plate, a crankcase receiving the swash plate mounted such that an inclination angle thereof is variable, a discharge chamber from which a compressed working fluid is discharged, a suction chamber sucking the working fluid to be compressed, a first communication channel connecting the suction chamber and the crankcase, a second communication channel connecting the discharge chamber and the crankcase, and a control valve which selectively opens and closes the first communication channel and the second communication channel. The control device includes a suction pressure sensor measuring a pressure of the suction chamber, a valve control unit determining a target suction pressure on the basis of the value measured by the suction pressure sensor and a set temperature, and a valve driving unit controlling the opening degree of the control valve to achieve the target suction pressure. 1. A control device of a compressor , the control device comprising:a piston which reciprocates by a swash plate;a crankcase for receiving the swash plate which is mounted such that an inclination angle thereof with respect to a rotational shaft is variable;a discharge chamber from which a compressed working fluid is discharged;a suction chamber for sucking the working fluid to be compressed;a first communication channel for connecting the suction chamber and the crankcase,a second communication channel for connecting the discharge chamber and the crankcase;a control valve which selectively opens and closes the first communication channel and the second communication channel;a suction pressure sensor for measuring a pressure of the suction chamber;a valve control unit for controlling an opening degree of the first communication channel and the second communication channel within the control valve by comparing a measured suction pressure value by the suction pressure sensor and a target suction pressure; anda ...

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Номер записи: 37
04-02-2021 дата публикации

CAPACITY CONTROL VALVE

Номер: US20210033081A1
Автор: EJIMA Takahiro, Fukudome Kohei, Hayama Masahiro, KURIHARA Daichi, Ogawa Yoshihiro, SHIRAFUJI Keigo, TAKAHASHI Wataru
Принадлежит:

A capacity control valve includes: housing with a Pc port, a Pd port, a first Ps port and a second Ps port; a main valve element having a main valve portion adapted to contact with and separate from a main valve seat to close and open a communication between the Pd port and the Pc port by a drive force of a solenoid; an intermediate communication path communicating with the Pc port and the first Ps port; a pressure-sensitive valve configured to open and close the intermediate communication path by an ambient pressure; and a differential pressure valve including a differential pressure valve element configured to open and close a communication between the Pc port and the second Ps port and a communication between the Pc port and a pressure-sensitive chamber by the differential pressure valve element moved by a pressure. 1. A capacity control valve comprising:a valve housing provided with a Pc port, a Pd port, a first Ps port and a second Ps port;a main valve element which includes a main valve portion configured to come into contact with and separating from a main valve seat to close and open a communication between the Pd port and the Pc port by a drive force of a solenoid;an intermediate communication path configured to communicate with the Pc port and the first Ps port;a pressure-sensitive valve configured to open and close the intermediate communication path by an ambient pressure; anda differential pressure valve including a differential pressure valve element configured to open and close a communication between the Pc port and the second Ps port and a communication between the Pc port and a pressure-sensitive chamber by the differential pressure valve element moved by a pressure.2. The capacity control valve according to claim 1 ,wherein when the differential pressure valve element moves in a valve opening direction, the communication between the Pc port and the second Ps port is opened and the communication between the Pc port and the pressure-sensitive ...

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Номер записи: 38
04-02-2021 дата публикации

CAPACITY CONTROL VALVE

Номер: US20210033082A1
Автор: EJIMA Takahiro, Fukudome Kohei, Hayama Masahiro, KURIHARA Daichi, Ogawa Yoshihiro, SHIRAFUJI Keigo, TAKAHASHI Wataru
Принадлежит:

A capacity control valve includes: a valve housing having a Pc port, a Ps port and a Pd port; a main valve element which includes a main valve portion coming contacting and separating from a main valve seat opening and closing communication between the Pd port and the Pc port by a drive force of a solenoid; an intermediate communication path communicating the Pc port with the Ps port; and a pressure-sensitive valve opening and closing the intermediate communication path by an ambient pressure, in which the valve housing have a differential pressure valve housed therein, the differential pressure valve including a differential pressure valve element and opening and closing a communication between the Pc port and the Ps port by the differential pressure valve element moved by an operation force of an operation member operated by a discharge pressure Pd from the Pd port. 1. A capacity control valve comprising:a valve housing provided with a Pc port, a Ps port and a Pd port;a main valve element which includes a main valve portion configured to come into contact with and to separate from a main valve seat and to open and close a communication between the Pd port and the Pc port by a drive force of a solenoid;an intermediate communication path configured to communicate the Pc port with the Ps port, anda pressure-sensitive valve configured to open and close the intermediate communication path by an ambient pressure,wherein the valve housing has a differential pressure valve housed therein, the differential pressure valve including a differential pressure valve element configured to open and close a communication between the Pc port and the Ps port by the differential pressure valve element moved by an operation force of an operation member operated by a discharge pressure from the Pd port.2. The capacity control valve according to claim 1 ,wherein the operation member is provided with a Pc pressure receiving surface configured to receive a pressure from a pressure- ...

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Номер записи: 39
12-02-2015 дата публикации

Sliding member

Номер: US20150040697A1
Автор: Kyohei Yamane, Shingo Goto
Принадлежит: Taiho Kogyo Co Ltd

A swash plate type compressor is arranged with a plurality of semispherical shoes and a disc shaped swash plate. A resin coating is formed on a surface and a rear surface (sliding surface) of the swash plate which slides with the shoe. The resin coating includes a structure whereby multiple hexagonal cylinder bodies are fabricated on a surface of a substrate and an end surface of each cylinder body forms a sliding surface which slides with the shoe. In addition, a honeycomb shaped groove is formed at an adjacent position of each cylinder body forming a storage part of a lubricant O and a container part for foreign objects. The swash plate can be provided with excellent wear resistance, seizure resistance and lubrication retention.

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Номер записи: 40
09-02-2017 дата публикации

Swash plate type liquid-pressure rotating device and method of manufacturing same

Номер: US20170037837A1
Автор: Arata Funasaka, Masaki OHNISHI, Shinji Nishida
Принадлежит: Kawasaki Jukogyo KK

A swash plate type liquid-pressure rotating device includes a movement restricting mechanism configured to restrict a movement of a spherical bushing relative to a rotating shaft toward a first side in an axial direction. The movement restricting mechanism is a restricting member such that a portion of the spherical bushing which portion is located at the first side in the axial direction contacts the restricting member. The swash plate type liquid-pressure rotating device further includes: a stopper attached to the rotating shaft; and a gap adjusting member. The gap adjusting member is inserted into a gap G 3 formed between the stopper and the bearing when the spherical bushing, the retainer plate, the shoe, and the swash plate tightly contact one another in the axial direction. The gap adjusting member restricts a movement of the rotating shaft relative to the casing toward the first side in the axial direction.

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Номер записи: 41
08-02-2018 дата публикации

VARIABLE-DISPLACEMENT SWASH PLATE-TYPE COMPRESSOR

Номер: US20180038359A1
Автор: FUJIWARA Shohei, HONDA Kazunari, KONDO Hisaya, NISHII Kei, Suzuki Takahiro, Yamamoto Shinya
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

A pressure-acting chamber is defined by a first cylinder block and a spacer. The pressure-acting chamber communicates with a discharge chamber via a supply passage. A load based on the pressure difference between the pressure-acting chamber and a swash plate chamber is applied to a rotary shaft and acts toward a second thrust bearing. 112.-. (canceled)13. A variable displacement swash plate type compressor comprising:a housing including a discharge chamber and a pair of cylinder blocks, wherein the pair of cylinder blocks each have a cylinder bore, the cylinder bores forming a pair;a rotary shaft rotationally supported by the housing;a thrust bearing arranged between the cylinder block, which is arranged along an axis of the rotary shaft, and the rotary shaft, wherein the thrust bearing bears a thrust that acts in an axial direction of the rotary shaft;a swash plate chamber, which is provided in the housing and draws in refrigerant from outside;a swash plate accommodated in the swash plate chamber, wherein the swash plate is rotated by receiving a drive force from the rotary shaft and is tiltable relative to a direction perpendicular to the axis of the rotary shaft;a double-headed piston reciprocally accommodated in the pair of the cylinder bores,an actuator, which is arranged in the swash plate chamber and configured to change an inclination angle of the swash plate, wherein a partition body provided on the rotary shaft,', 'a movable body, which is provided in the swash plate chamber and movable along the axis of the rotary shaft, and', 'a control pressure chamber, which is defined by the partition body and the movable body, wherein the movable body is moved by a pressure in the control pressure chamber,, 'the actuator includes'}as the movable body moves along the axis of the rotary shaft, the inclination angle of the swash plate is changed so that the piston reciprocates by a stroke in accordance with the inclination angle of the swash plate,the rotary shaft ...

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Номер записи: 42
12-02-2015 дата публикации

Variable displacement swash plate type compressor

Номер: US20150044065A1
Автор: Hiromichi Ogawa, Kei Nishii, Masaki Ota, Takahiro Suzuki, Yusuke Yamazaki
Принадлежит: Toyota Industries Corp

A variable displacement swash plate type compressor includes a displacement control valve. The displacement control valve includes a drive force transmitting member, a valve member having a first valve body, a valve chamber, which accommodates the first valve body, an accommodating chamber, which communicates with a control pressure chamber, a pressure sensing mechanism, which adjusts the valve opening degree of the first valve body, a communicating chamber, which is located on the opposite side of the pressure sensing mechanism from the valve chamber, and a second valve body, which is located in the pressure sensing mechanism and selectively opens and closes the communicating chamber. When the current supply to the electromagnetic solenoid is stopped and the pressure in the suction pressure zone in the communicating chamber is higher than a predetermined pressure, the pressure sensing mechanism contracts to open the second valve body.

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Номер записи: 43
12-02-2015 дата публикации

VARIABLE DISPLACEMENT SWASH PLATE TYPE COMPRESSOR

Номер: US20150044067A1
Автор: NISHII Kei, OTA Masaki, Suzuki Takahiro, Yamamoto Shinya
Принадлежит:

A variable displacement swash plate type compressor includes a displacement control valve. The displacement control valve includes a drive force transmitting member, a valve member having a first valve body, a pressure sensing mechanism, which adjusts the valve opening degree of the first valve body, a communication passage, which connects a back pressure chamber and an accommodating chamber to each other, and a second valve body, which selectively opens and closes the communication passage. The first valve body opens when current supply to an electromagnetic solenoid is stopped and the pressure in a suction pressure zone is less than a threshold value. The second valve body closes when current is supplied to the electromagnetic solenoid and opens when the current supply to the electromagnetic solenoid is stopped and the pressure in the suction pressure zone is greater than or equal to the threshold value. 1. A variable displacement swash plate type compressor comprising:a housing having a crank chamber;a swash plate accommodated in the crank chamber, wherein the swash plate receives a drive force from a rotary shaft to rotate and is capable of changing its inclination angle relative to the rotary shaft;a piston engaged with the swash plate;a movable body, which is coupled to the swash plate and changes the inclination angle of the swash plate;a control pressure chamber defined in the housing by the movable body, wherein pressure in the control pressure chamber is changed by introducing control gas therein so that the movable body is moved in the axial direction of the rotary shaft; anda displacement control valve that controls the pressure in the control pressure chamber, whereinthe piston is reciprocated by a stroke that corresponds to the inclination angle of the swash plate, a drive force transmitting member, which is driven by an electromagnetic solenoid;', 'a valve member having a first valve body, wherein the first valve body adjusts an opening degree of ...

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Номер записи: 44
12-02-2015 дата публикации

SWASH PLATE TYPE VARIABLE DISPLACEMENT COMPRESSOR

Номер: US20150044068A1
Автор: NISHII Kei, Suzuki Takahiro, TARUTANI Tomoji, Yamamoto Shinya
Принадлежит:

A compressor according to the present invention has a housing including a first and second cylinder bores. The inner diameter of the first cylinder bore is smaller than that of the second cylinder bore. In suction process, refrigerant gas is directly drawn from an inlet port into a first suction chamber. The refrigerant gas is flowed from the first suction chamber into a first compression chamber. In contrast, refrigerant gas is drawn through the inlet port, a first suction passage, the first suction chamber, a first communication passage, a swash plate chamber and a second communication passage and into a second compression chamber. According to the above-described compressor, wherein the inner diameter of the first cylinder bore is smaller than the second cylinder bore, the difference of the amplitude of the intake pulsation between the first compression chamber and the second compression chamber can be suitably reduced. 1. A swash plate type variable displacement compressor comprising:a housing having therein a suction chamber into which refrigerant gas is drawn through an inlet port, a discharge chamber, a swash plate chamber and a cylinder bore;a drive shaft rotatably supported by the housing;a swash plate which is rotatable by the rotation of the drive shaft in the swash plate chamber;a link mechanism provided between the drive shaft and the swash plate and allowing the swash plate to change the inclination angle thereof with respect to the direction perpendicular to the axis of rotation of the drive shaft;a piston received to reciprocate in the cylinder bore;a conversion mechanism converting rotation of the swash plate into reciprocating movement of the piston in the cylinder bore for a stroke length that is determined by the inclination angle of the swash plate;a actuator allowing the swash plate to change the inclination angle of the swash plate; anda control mechanism controlling the actuator,wherein the cylinder bore includes a first cylinder bore ...

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Номер записи: 45
24-02-2022 дата публикации

CAPACITY CONTROL VALVE

Номер: US20220057010A1
Автор: EJIMA Takahiro, Fukudome Kohei, SHIRAFUJI Keigo
Принадлежит:

A capacity control valve includes a main valve that opens and closes communication between a discharge port and a control port formed in a valve housing by movement of a rod driven by a solenoid, a CS communication passage providing communication between a control fluid supply chamber formed in the valve housing and a suction port, and an on-off valve formed by a communication passage forming member having an annular valve seat in an outer periphery of the CS communication passage and an on-off valve element biased in the valve closing direction with respect to the valve seat. 1. A capacity control valve comprising:a valve housing provided with a discharge port through which a discharge fluid of discharge pressure passes, a suction port through which a suction fluid of suction pressure passes, and a control port through which a control fluid of control pressure passes;a rod driven by a solenoid;a main valve constituted by a main valve seat and a main valve element, the main valve configured to open and close a communication between the discharge port and the control port in accordance with a movement of the rod;a CS communication passage providing a communication between a control fluid supply chamber and the suction port, the control fluid supply chamber being formed in the valve housing and having the control fluid supplied thereinto; andan on-off valve including a communication passage forming member provided with an annular valve seat in an outer periphery of the CS communication passage and an on-off valve element biased in a valve closing direction of the on-off valve toward the annular valve seat, whereinthe on-off valve element further includes a cap configured for seating on and separating from the valve seat, and a bellows core provided with an axial end portion welded to an outera recessed portion that houses a welding bead formed between the bellows core and the cap is provided in the outer peripheral end portion of the cap.2. The capacity control valve ...

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Номер записи: 46
07-02-2019 дата публикации

CONTROL VALVE FOR VARIABLE DISPLACEMENT COMPRESSOR

Номер: US20190040853A1
Автор: Saeki Shinji, Sugamura Ryota, Tonegawa Masaaki
Принадлежит:

A control valve includes: a body having a main passage through which a discharge chamber and a control chamber communicate, and a sub-passage through which the control chamber and a suction chamber communicate; a main valve seat provided in the main passage; a main valve element configured to touch and leave the main valve seat to close and open a main valve; a sub-valve seat provided in the sub-passage; a sub-valve element configured to touch and leave the sub-valve seat to close and open a sub-valve; a solenoid configured to generate a drive force in a valve closing direction of the main valve; an actuating rod for transmitting the drive force of the solenoid to the main valve element and the sub-valve element; a spring for applying a biasing force to the main valve in a valve opening direction; a spring for applying a biasing force to the sub-valve in a valve closing direction; and a differential pressure valve opening mechanism configured to open the sub-valve when a pressure difference between a control pressure in the control chamber and a suction pressure in the suction chamber becomes a preset pressure difference or larger. 1. A control valve for a variable displacement compressor , for varying a discharging capacity of the compressor for compressing refrigerant introduced into a suction chamber and discharging the compressed refrigerant from a discharge chamber , by regulating a flow rate of refrigerant introduced from the discharge chamber to a control chamber , the control valve comprising:a body having a main passage through which the discharge chamber and the control chamber communicate with each other, and a sub-passage through which the control chamber and the suction chamber communicate with each other;a main valve seat provided in the main passage;a main valve element configured to touch and leave the main valve seat to close and open a main valve;a sub-valve seat provided in the sub-passage;a sub-valve element configured to touch and leave the sub- ...

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Номер записи: 47
18-02-2021 дата публикации

Variable-capacity compressor control valve

Номер: US20210048009A1
Автор: Kenki SHIMADA, Masaharu Itoh, Shintaro Tano, Takashi Sakamoto, Yoshiyuki Kume
Принадлежит: Fujikoki Corp

A variable-capacity compressor control valve that can efficiently cancel the influence of the refrigerant pressure acting on a main valve element and avoid increase in complexity of the structure and size of the control valve is provided. A pressure equalizing passage is provided which is adapted to guide a suction pressure Ps acting on the upper end of a main valve element to a Ps introduction chamber provided at the lower end of the main valve element so that the suction pressure Ps acts on the lower end of the main valve element. When an electromagnetic actuator or a solenoid portion thereof is not supplied with current i.e., when a valve orifice is fully open, the introduction of a pressure Pc in a crank chamber from Pc inlet/outlet ports into the Ps introduction chamber is stopped, and the suction pressure Ps is introduced into the Ps introduction chamber via the pressure equalizing passage so that the suction pressure Ps acts on the upper and lower ends of the main valve element.

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Номер записи: 48
18-02-2021 дата публикации

VARIABLE-CAPACITY COMPRESSOR CONTROL VALVE

Номер: US20210048010A1
Автор: ASANO Hirotaka, ASANO Hisashi, ITOH Masaharu, TANO Shintaro
Принадлежит: FUJIKOKI CORPORATION

Provided is a variable-capacity compressor control valve that can cancel the influence of the refrigerant pressure acting on a main valve element without increasing the size of a valve body. A main valve element is provided with a suction pressure passage adapted to guide a suction pressure Ps acting on the upper end of the main valve element to a Ps introduction chamber provided at the lower end of the main valve element so that the suction pressure Ps acts on the lower end of the main valve element. A cross-sectional area Ab of a lower fit-inserted portion of the main valve element, an effective opening area Ac of a valve orifice, and a cross-sectional area Ad of an upper fit-inserted portion are equal to one another. 1. A variable-capacity compressor control valve , comprising:a main valve element including a main valve element portion; a valve chamber with a valve orifice, the valve orifice being adapted to be in contact with or away from the main valve element portion,', 'a Ps inlet/outlet port communicating with a suction chamber of a compressor,', 'a Pd introduction port arranged upstream of the valve orifice and communicating with a discharge chamber of the compressor, and', 'a Pc inlet/outlet port arranged downstream of the valve orifice and communicating with a crank chamber of the compressor;, 'a valve body including'}an electromagnetic actuator adapted to move the main valve element in a direction to open or close the valve orifice;a pressure-sensitive chamber adapted to receive a suction pressure Ps from the compressor via the Ps inlet/outlet port;a pressure-sensitive reaction member adapted to urge the main valve element in the direction to open or close the valve orifice in accordance with a pressure in the pressure-sensitive chamber,wherein:the Ps inlet/outlet port or the pressure-sensitive chamber is provided at one end of the main valve element so that the suction pressure Ps acts on the one end of the main valve element, andthe main valve element ...

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Номер записи: 49
18-02-2021 дата публикации

CAPACITY CONTROL VALVE

Номер: US20210048017A1
Автор: Fukudome Kohei, KURIHARA Daichi, SHIRAFUJI Keigo
Принадлежит:

A capacity control valve () for controlling a flow rate or pressure of a variable capacity compressor according to a valve opening degree of a valve section includes: a valve main body () having a first valve chamber (), a second valve chamber () and an interior space (); a valve body () having an intermediate communication passage () for allowing communication between the first valve chamber and the interior space, a first valve part () arranged in the first valve chamber, a second valve part () for opening and closing communication between the interior space and the second valve chamber, and a shaft part () arranged in the interior space; a solenoid (); a pressure-sensitive body () arranged in the interior space; and an auxiliary communication part () which is arranged in the interior space and which allows communication between the interior space and the intermediate communication passage. 1. A capacity control valve for controlling a flow rate or pressure according to a valve opening degree of a valve section , comprising:a valve main body having an interior space communicating with a third communication passage through which a fluid at a control pressure passes, a second valve chamber communicating with a second communication passage through which a fluid at discharge pressure passes and having a valve hole communicating with the interior space and a second valve seat arranged in the valve hole, and a third valve chamber communicating with a first communication passage through which a fluid at a suction pressure passes and having a first valve seat;a valve body having an intermediate communication passage communicating with the interior space and the first communication passage, a second valve part for opening and closing the valve hole by separating from and making contact with the second valve seat, a first valve part which performs opening/closing action in reverse association with the second valve part and which opens and closes communication between the ...

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Номер записи: 50
18-02-2021 дата публикации

CAPACITY CONTROL VALVE

Номер: US20210048018A1
Автор: Fukudome Kohei, KURIHARA Daichi, SHIRAFUJI Keigo
Принадлежит:

A capacity control valve () for controlling a flow rate or pressure of a variable capacity compressor according to a valve opening degree of a valve section includes: a valve main body () having a first valve chamber (), a second valve chamber () and a third valve chamber (); a valve body () having an intermediate communication passage () for allowing communication between the first valve chamber and the third valve chamber, a first valve part () arranged in the first valve chamber, a second valve part () for opening and closing communication between the third valve chamber and the second valve chamber, and a third communication hole for allowing communication between the third valve chamber and the intermediate communication passage; a solenoid () having a first plunger connected to the valve body; and a second plunger () arranged between the solenoid and the valve body. 1. A capacity control valve for controlling a flow rate or pressure of a variable capacity compressor according to a valve opening degree of a valve section , comprising:a valve main body having a first valve chamber communicating with a first communication passage through which a fluid at a first pressure passes, a third valve chamber communicating with a third communication passage through which a fluid at a third pressure passes, and a second valve chamber communicating with a second communication passage which is arranged between the first communication passage and the third communication passage and through which a fluid at a second pressure passes and having a valve hole communicating with the third valve chamber and a second valve seat arranged in the valve hole;a pressure-sensitive body which is arranged in the third valve chamber and which extends and contracts in response to the pressure of the third valve chamber;a valve body having an intermediate communication passage for communicating the first valve chamber and the third valve chamber, a first valve part arranged in the first valve ...

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Номер записи: 51
08-05-2014 дата публикации

SWASH PLATE TYPE VARIABLE DISPLACEMENT COMPRESSOR

Номер: US20140127041A1
Автор: HONDA Kazunari, NISHII Kei, OTA Masaki, Suzuki Takahiro, Yamamoto Shinya, YAMAZAKI Yusuke
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

A compressor includes an actuator. The actuator is arranged in a swash plate chamber, while being rotational integrally with a drive shaft. With reference to the swash plate, the actuator is located in a region in which a first cylinder bore is located. The actuator includes a rotation body fixed to the drive shaft, a movable body, and a control pressure chamber. A link mechanism is located between the drive shaft and the swash plate. As the inclination angle of the swash plate is changed, the link mechanism moves the top dead center position of a first head by a greater amount than the top dead center position of a second head. 1. A swash plate type variable displacement compressor comprising:a housing in which a suction chamber, a discharge chamber, a swash plate chamber, and a cylinder bore are formed;a drive shaft rotationally supported by the housing;a swash plate rotatable in the swash plate chamber by rotation of the drive shaft;a link mechanism arranged between the drive shaft and the swash plate, the link mechanism allowing change of an inclination angle of the swash plate with respect to a line perpendicular to the rotation axis of the drive shaft;a piston reciprocally received in the cylinder bore;a conversion mechanism that causes the piston to reciprocate in the cylinder bore by a stroke corresponding to the inclination angle of the swash plate through rotation of the swash plate;an actuator capable of changing the inclination angle of the swash plate; anda control mechanism that controls the actuator, whereinthe cylinder bore is formed by a first cylinder bore, which is located in a first region facing a first surface of the swash plate, and a second cylinder bore, which is located in a second region facing a second surface of the swash plate,the piston includes a first head, which reciprocates in the first cylinder bore, and a second head, which is integrated with the first head and reciprocates in the second cylinder bore,the link mechanism is ...

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Номер записи: 52
08-05-2014 дата публикации

SWASH PLATE TYPE VARIABLE DISPLACEMENT COMPRESSOR

Номер: US20140127042A1
Автор: HONDA Kazunari, NISHII Kei, OTA Masaki, Suzuki Takahiro, Yamamoto Shinya, YAMAZAKI Yusuke
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

In a compressor, a link mechanism, which allows change of the inclination angle of the swash plate, is arranged between the drive shaft and the swash plate. An actuator is arranged in a swash plate chamber, while being rotational integrally with a drive shaft. The actuator includes a rotation body, a movable body, and a control pressure chamber. The swash plate has a fulcrum, which is coupled to the link mechanism, and a point of application, which is coupled to the movable body. The drive shaft is located between the fulcrum and the point of application. 1. A swash plate type variable displacement compressor comprising:a housing in which a suction chamber, a discharge chamber, a swash plate chamber, and a cylinder bore are formed;a drive shaft rotationally supported by the housing;a swash plate rotatable in the swash plate chamber by rotation of the drive shaft;a link mechanism arranged between the drive shaft and the swash plate, the link mechanism allowing change of an inclination angle of the swash plate with respect to a line perpendicular to the rotation axis of the drive shaft;a piston reciprocally received in the cylinder bore;a conversion mechanism that causes the piston to reciprocate in the cylinder bore by a stroke corresponding to the inclination angle of the swash plate through rotation of the swash plate;an actuator capable of changing the inclination angle of the swash plate; anda control mechanism that controls the actuator, whereinthe actuator is arranged in the swash plate chamber and rotates integrally with the drive shaft,the actuator includes a rotation body fixed to the drive shaft, a movable body that is connected to the swash plate and movable relative to the rotation body in the direction of the rotation axis of the drive shaft, and a control pressure chamber that is defined by the rotation body and the movable body and moves the movable body using pressure in the control pressure chamber,the control mechanism changes the pressure in the ...

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Номер записи: 53
08-05-2014 дата публикации

SWASH PLATE TYPE VARIABLE DISPLACEMENT COMPRESSOR

Номер: US20140127043A1
Автор: HONDA Kazunari, NISHII Kei, OTA Masaki, Suzuki Takahiro, Yamamoto Shinya, YAMAZAKI Yusuke
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

A compressor includes an actuator. The actuator is arranged in a swash plate chamber, while being rotational integrally with a drive shaft. The actuator includes a rotation body, a movable body, and a control pressure chamber. A control mechanism is provided that changes the pressure in the control pressure chamber to move the movable body. The movable body is arranged such that, when the pressure in the control pressure chamber is raised, the movable body pulls the swash plate to increase the inclination angle of the swash plate. 1. A swash plate type variable displacement compressor comprising:a housing in which a suction chamber, a discharge chamber, a swash plate chamber, and a cylinder bore are formed;a drive shaft rotationally supported by the housing;a swash plate rotatable in the swash plate chamber by rotation of the drive shaft;a link mechanism arranged between the drive shaft and the swash plate, the link mechanism allowing change of an inclination angle of the swash plate with respect to a line perpendicular to the rotation axis of the drive shaft;a piston reciprocally received in the cylinder bore;a conversion mechanism that causes the piston to reciprocate in the cylinder bore by a stroke corresponding to the inclination angle of the swash plate through rotation of the swash plate;an actuator capable of changing the inclination angle of the swash plate; anda control mechanism that controls the actuator, whereinthe actuator is arranged in the swash plate chamber and rotates integrally with the drive shaft,the actuator includesa rotation body fixed to the drive shaft,a movable body, which is coupled to the swash plate and moves along the rotation axis of the drive shaft to be movable relative to the rotation body, anda control pressure chamber, which is defined by the rotation body and the movable body, wherein the control pressure chamber moves the movable body by an internal pressure of the control pressure chamber,the control mechanism changes the ...

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Номер записи: 54
08-05-2014 дата публикации

SWASH PLATE TYPE VARIABLE DISPLACEMENT COMPRESSOR

Номер: US20140127044A1
Автор: HONDA Kazunari, NISHII Kei, OTA Masaki, Suzuki Takahiro, Yamamoto Shinya, YAMAZAKI Yusuke
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

In a compressor according to the present invention, an actuator is arranged in a swash plate chamber in a manner rotatable integrally with a drive shaft. The actuator includes a rotation body, a movable body, and a control pressure chamber. A control mechanism includes a bleed passage, a supply passage, and a control valve. The control mechanism is capable of changing the pressure in the control pressure chamber to move the movable body. The movable body opposes the lug arm with a swash plate arranged between the movable body and the lug arm. 1. A swash plate type variable displacement compressor comprising:a housing in which a suction chamber, a discharge chamber, a swash plate chamber, and a cylinder bore are formed;a drive shaft rotationally supported by the housing;a swash plate rotatable in the swash plate chamber by rotation of the drive shaft;a link mechanism arranged between the drive shaft and the swash plate, the link mechanism allowing change of an inclination angle of the swash plate with respect to a line perpendicular to the rotation axis of the drive shaft;a piston reciprocally received in the cylinder bore;a conversion mechanism that causes the piston to reciprocate in the cylinder bore by a stroke corresponding to the inclination angle of the swash plate through rotation of the swash plate;an actuator capable of changing the inclination angle of the swash plate; anda control mechanism that controls the actuator, wherein the actuator is arranged in the swash plate chamber and rotates integrally with the drive shaft,the actuator includes a rotation body fixed to the drive shaft, a movable body that is connected to the swash plate and movable relative to the rotation body in the direction of the rotation axis of the drive shaft, and a control pressure chamber that is defined by the rotation body and the movable body and moves the movable body using pressure in the control pressure chamber,the control mechanism changes the pressure in the control ...

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Номер записи: 55
08-05-2014 дата публикации

SWASH PLATE TYPE VARIABLE DISPLACEMENT COMPRESSOR

Номер: US20140127045A1
Автор: HONDA Kazunari, NISHII Kei, OTA Masaki, Suzuki Takahiro, Yamamoto Shinya, YAMAZAKI Yusuke
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

In a compressor according to the present invention, an actuator is arranged in a swash plate chamber in a manner rotatable integrally with a drive shaft. The actuator includes a rotation body, a movable body, and a control pressure chamber. A control mechanism includes a bleed passage, a supply passage, and a control valve. The control mechanism is capable of changing the pressure in the control pressure chamber to move the movable body. When the pressure in the control pressure chamber exceeds the pressure in the swash plate chamber, the inclination angle of the swash plate with respect to the rotation axis of the drive shaft increases. 1. A swash plate type variable displacement compressor comprising:a housing in which a suction chamber, a discharge chamber, a swash plate chamber, and a cylinder bore are formed;a drive shaft rotationally supported by the housing;a swash plate rotatable in the swash plate chamber by rotation of the drive shaft;a link mechanism arranged between the drive shaft and the swash plate, the link mechanism allowing change of an inclination angle of the swash plate with respect to a line perpendicular to the rotation axis of the drive shaft;a piston reciprocally received in the cylinder bore;a conversion mechanism that causes the piston to reciprocate in the cylinder bore by a stroke corresponding to the inclination angle of the swash plate through rotation of the swash plate;an actuator capable of changing the inclination angle of the swash plate; anda control mechanism that controls the actuator, whereinthe actuator is arranged in the swash plate chamber and rotates integrally with the drive shaft,the actuator includes a rotation body fixed to the drive shaft, a movable body that is connected to the swash plate and movable relative to the rotation body in the direction of the rotation axis of the drive shaft, and a control pressure chamber that is defined by the rotation body and the movable body and moves the movable body using pressure ...

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Номер записи: 56
25-02-2016 дата публикации

SEMISPHERICAL SHOE FOR SWASH PLATE COMPRESSOR AND SWASH PLATE COMPRESSOR

Номер: US20160053751A1
Автор: Oomori Akihiro
Принадлежит:

It is an object of the present invention to provide a semispherical shoe which can be prevented from being subjected to seizure even in a dry lubrication state in which there is no lubricating oil at the start time of an operation, does not deteriorate in its lubricating property owing to frictional heating, and ensures sufficient durability and a swash plate compressor in which a lubricating film is not formed on a sliding contact surface of a swash plate owing to the use of the semispherical shoe. A semispherical shoe () makes sliding contact with the swash plate of the swash plate compressor. A surface of a planar part () which makes sliding contact with the swash plate consists of a resin layer (). A surface of a spherical part () consists of a base material of the semispherical shoe. In viewing the surface of the planar part divided into three parts consisting of a central part (), an outer edge part (), and an intermediate part () interposed between the central part () and the outer edge part () in a direction vertical to the surface of the planar part, an annular belt portion () whose layer thickness is larger than that of each of the central part () and the outer edge part () is formed inside the intermediate part (). 1. A semispherical shoe for a swash plate compressor so constructed that inside a housing where a refrigerant is present , a rotational motion of said swash plate mounted perpendicularly and obliquely on a rotational shaft by directly fixing said swash plate to said rotational shaft is converted into a reciprocating motion of a piston through a shoe which slides on said swash plate to compress and expand said refrigerant ,wherein a surface of a planar part of said semispherical shoe which makes sliding contact with said swash plate consists of a resin layer, and a surface of a spherical part consists of a base material of said semispherical shoe; andin viewing said surface of said planar part of said resin layer divided into three parts ...

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Номер записи: 57
25-02-2016 дата публикации

Control Valve And Variable Capacity Compressor Provided With Said Control Valve

Номер: US20160053755A1
Автор: Taguchi Yukihiko
Принадлежит:

A control valve is disclosed that drives a valve body in a valve closing direction against urging forces of a bellows assembly and an open spring by an electromagnetic force generated in an electromagnetic coil portion by a drive current subjected to pulse width modulation. The control valve is provided with a notch portion formed in an inner peripheral wall of a through hole portion disposed in an end wall of a solenoid housing, so that a magnetic resistance between a peripheral wall of a movable iron core housed in a housing member and the inner peripheral wall of the through hole portion in a region of the notch portion differs from that in the other region around the movable iron core. In addition, a variable displacement compressor controls a refrigerant gas discharge displacement by use of this control valve. 1. A control valve comprising:a valve unit having a valve body that opens and closes a fluid passage in a valve housing and a movable iron core coupled with the valve body;a housing member having a tubular shape with a bottom and that houses the movable iron core;a drive coil portion disposed around the housing member;a solenoid housing that houses the drive coil portion, one end of which is fixed to the valve housing, and the other end of which is provided with an end wall covering an upside of the drive coil portion and having a through hole portion through which a bottom wall side end portion of the housing member is extended; andurging means for urging the valve unit in a valve opening direction,the control valve being configured to drive the valve body in a valve closing direction against an urging force of the urging means by an electromagnetic force generated in the drive coil portion by supply of a drive current subjected to pulse width modulation, wherein the electromagnetic force is adjusted, thereby adjusting an opening degree of the valve body,wherein there is provided, around the movable iron core, a region in which a magnetic resistance ...

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Номер записи: 58
25-02-2021 дата публикации

Multi-Stage Compressor and Method of Controlling the Same

Номер: US20210054845A1
Автор: Seong Bin JEONG
Принадлежит: Hyundai Motor Co, Kia Motors Corp

A multi-stage compressor includes a compression module configured to compress a refrigerant therein through reciprocation of a plurality of pistons provided in a front housing, a rear housing coupled to the front housing to define an internal space between the front housing and the rear housing; a separation plate located between the front housing and the rear housing to separate the internal space between the front housing and the rear housing into a front space and a rear space; and a partition wall coupled to the rear housing to partition the rear space into an injection space before a refrigerant injected thereinto is primarily compressed, a primary discharge space from which the refrigerant is discharged in a primary compressed state by some of the pistons, and a secondary discharge space from which the primary compressed refrigerant is discharged.

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Номер записи: 59
22-02-2018 дата публикации

Wobble Plate Type Variable Displacement Compressor

Номер: US20180051682A1
Автор: SUGINO Kenji
Принадлежит:

The whirling vibration of a rotating main shaft is reduced to decrease abnormal wear of a wobble plate rotation preventing mechanism, so that durability is improved. A inner ring of a wobble plate rotation preventing mechanism has a first support portion of which an outer peripheral surface is supported by an inner peripheral surface of a guide hole A of a cylinder block and a second support portion of which an inner peripheral surface supports the rotating main shaft via a plain bearing , and the first support portion and the second support portion are arranged to overlap within a range from a minimum inclination angle of a swash plate to a maximum inclination angle of the swash plate in an axial direction of a rotating main shaft 1. A wobble plate type variable displacement compressor comprising:a rotating main shaft of which a front end side and a rear end side are rotatably supported by a housing;a swash plate which synchronously rotates with the rotating main shaft and is inclinable with respect to the rotating main shaft;a wobble plate which swings along with the rotation of the swash plate with respect to the rotating main shaft to reciprocate a piston in a cylinder bore; anda wobble plate rotation preventing mechanism which is disposed at a middle portion of the rotating main shaft, and prevents the wobble plate from rotating at the time of rotating the rotating main shaft,an inclination angle of the swash plate with respect to the rotating main shaft being varied to control a stroke amount of the piston,wherein the wobble plate rotation preventing mechanism including:a guide member which includes a first support portion of which an outer peripheral surface is supported by an inner peripheral surface of a guide hole in the housing to be movable in an axial direction of the rotating main shaft and prevented from rotating around the rotating main shaft; anda connecting mechanism which connects the wobble plate to the guide member so that the wobble plate is ...

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Номер записи: 60
21-02-2019 дата публикации

SWASH PLATE TYPE COMPRESSOR

Номер: US20190055933A1
Автор: CHU Henry C., LI Xiao Feng
Принадлежит:

A swash plate type compressor includes a number of cylinders engaged in a receptacle, a number of pistons slidably engaged in the cylinders and movable relative to the cylinders in a reciprocating action, a spindle rotatably engaged in the receptacle, the receptacle includes a bore for partially receiving the spindle, a spring biasing member is engaged with the spindle, a holder is engaged onto the spindle, a swash plate is attached to the holder and coupled to the pistons for moving the pistons in the reciprocating action in the cylinders, and a control valve plate device is engaged with the cylinders for guiding the air to flow from the inlet chamber of the receptacle into the cylinders and from the cylinders into the discharge chamber of the receptacle. 1. A compressor comprising:a receptacle including a compartment formed in said receptacle, said receptacle including an inlet chamber and a discharge chamber formed in said receptacle and spaced from each other, an inlet manifold formed in said receptacle and communicating with said inlet chamber for introducing an air into said inlet manifold and said inlet chamber of said receptacle;a plurality of cylinders engaged in said compartment of said receptacle and equally spaced and arranged around said compartment of said receptacle;a plurality of pistons slidably received and engaged in said cylinders and movable relative to said cylinders in a reciprocating action respectively;a spindle rotatably received and engaged in said compartment of said receptacle with at least one bearing for allowing said spindle to be smoothly rotated relative to said receptacle, said receptacle including a bore formed in said receptacle and communicating with said compartment of said receptacle for partially receiving and engaging with said spindle;a spring biasing member received and engaged in said bore of said receptacle and engaged with said spindle for biasing and forcing said spindle onto said receptacle;a holder received in said ...

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Номер записи: 61
05-03-2015 дата публикации

STRUCTURE OF VARIABLE SWASH PLATE TYPE COMPRESSOR

Номер: US20150064028A1
Автор: Park Nam-Ho
Принадлежит: HYUNDAI MOTOR COMPANY

A structure of a variable swash plate compressor includes: a rotatable shaft having a flow path through which a refrigerant flows; a rotor fixed and coupled to the shaft and has a rotor arm formed at one side of the rotor; a swash plate connected to the rotor arm by a hinge pin and mounted on the shaft so that an inclination angle is variable with respect to the shaft; a compressive coil spring installed on the shaft between the swash plate and the rotor; a lift slidably coupled to the shaft and connected to the swash plate; and a fixing device formed in the shaft and fixes the lift so as to maintain the inclination angle of the swash plate, thereby basically preventing an operational delay of the compressor, securing performance at the time of initially operating an air conditioning device, and improving marketability. 1. A structure of a variable swash plate compressor comprising:a rotatable shaft including a flow path formed therein through which a refrigerant flows;a rotor fixed and coupled to the shaft, the rotor including a rotor arm formed at one side of the rotor;a swash plate connected to the rotor arm by a hinge pin and mounted on the shaft so that an inclination angle is variable with respect to the shaft;a compressive coil spring installed on the shaft between the swash plate and the rotor;a lift slidably coupled to the shaft and connected to the swash plate; anda fixing device formed in the shaft and fixing the lift so as to maintain the inclination angle of the swash plate.2. The structure of claim 1 , wherein the fixing device includes:a valve slidably inserted into a space portion formed in the shaft and has a flow path that is formed to penetrate the valve in a longitudinal direction so that the refrigerant flows therethrough;a spring coupled to the valve and pushes the valve in a direction opposite to a direction in which the refrigerant flows; anda protruding portion formed between the space portion of the shaft and an outer circumferential ...

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Номер записи: 62
20-02-2020 дата публикации

Variable Pressure Air Pump

Номер: US20200056601A1
Автор: Wu Scott
Принадлежит:

A variable pressure air pump includes a first cylinder and a second cylinder movable relative to the first cylinder along a longitudinal axis. An air tube is mounted in the first and second cylinders. A mounting portion is integrally formed on a first end of the air tube. A first piston and a second piston compress air in the first and second cylinders. A connecting device is mounted to the first cylinder for coupling with an object to be inflated. An air escape device selectively seals a second chamber of the second cylinder to selectively compress the air in the second cylinder. A first check valve is mounted to the mounting portion of the air tube. A second check valve is mounted to the second piston. 1. A variable pressure air pump comprising:a first cylinder including a first chamber;a second cylinder including a second chamber selectively intercommunicating with an outside, wherein the second cylinder and the first cylinder are coaxially mounted about a longitudinal axis, and wherein the second cylinder is movable relative to the first cylinder along the longitudinal axis;an air tube mounted in the first chamber and the second chamber, wherein the air tube includes a first end, a second end opposite to the first end, an air passage intercommunicating the first chamber with the second chamber in a single direction, and a mounting portion integrally formed on the first end of the air tube;a first piston mounted on a first end of the second cylinder and configured to compress air in the first chamber;a second piston mounted to the second end of the air tube and configured to selectively compress air in the second chamber;a connecting device mounted to a first end of the first cylinder and configured to couple with an object to be inflated;an air escape device mounted to a second end of the second cylinder, wherein the air escape device selectively seals the second chamber to control intercommunication between the second chamber and the outside;a first check valve ...

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Номер записи: 63
22-05-2014 дата публикации

Variable Displacement Axial Piston Device

Номер: US20140140863A1
Автор: Harada Hidemi, Mochizuki Yasuhisa, SAKATA Koji, Syokita Hideaki, WATANABE Masaki, Yasuda Toshifumi
Принадлежит: Kanzaki Kokyukoki Mfg. Co., Ltd.

An outer circumferential surface of a trunnion shaft includes a sliding contact region that has a circular arc shape as viewed along a slanting axis line and is substantially brought into contact with an inner circumferential surface of the bearing portion in a rotatably sliding manner, and at least one suction groove that forms a pocket portion between the suction groove and the inner surface of the bearing portion. The pocket portion is opened to an inner space of housing on at least one side in an axis line direction of the trunnion shaft. 1. A variable displacement axial piston device comprising a cylinder block that rotates around a rotational axis line , plural pistons that are accommodated in the cylinder block in a relatively non-rotatable manner around the rotational axis line with respect thereto and in a reciprocating manner along the rotational axis line with respect thereto , a trunnion type movable swash plate capable of varying a reciprocating range in which the plural pistons can move , and a housing that accommodates the cylinder block , wherein the movable swash plate includes a swash plate main body that has an engagement surface with which free ends of the plural pistons are engaged , and a trunnion shaft that extends outward in a radial direction of the rotational axis line and is supported in a rotatable manner by a bearing portion provided in the housing so as to be located coaxially with a slanting axis line ,wherein an outer circumferential surface of the trunnion shaft includes a sliding contact region that has a circular arc shape as viewed along the slanting axis line and is substantially brought into contact with an inner circumferential surface of the bearing portion in a rotatably sliding manner, and at least one suction groove that forms a pocket portion between the suction groove and the inner surface of the bearing portion, andwherein the pocket portion is opened to an inner space of the housing on at least one side in an axis line ...

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Номер записи: 64
28-02-2019 дата публикации

Barrel cam driven reciprocating pump

Номер: US20190063413A1
Автор: Daniel Paul Servansky
Принадлежит: Koninklijke Philips NV

A system for pumping and/or compressing fluids is provided. The system comprises a base, a motor, a cam configured to be rotated about an axis of rotation by the motor, and one or more cylinder piston arrangements. Each cylinder piston arrangement comprises a first member and a second member. The first member has a longitudinal axis and two ends. The first member is fixedly attached to the base. The second member is configured to be operatively coupled to the cam and to be movable along the longitudinal axis with respect to the first member and through at least of the two ends. The axis of rotation of the cam is parallel to the longitudinal axis about which the second member moves relative to the first member.

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Номер записи: 65
10-03-2016 дата публикации

VARIABLE DISPLACEMENT SWASH PLATE TYPE COMPRESSOR

Номер: US20160069334A1
Автор: HONDA Kazunari, NISHII Kei, OGAWA Hiromichi, OTA Masaki, Suzuki Takahiro, Yamamoto Shinya, YAMASHITA Hideharu, YAMAZAKI Yusuke
Принадлежит:

Provided is a compressor, in which the inclination angle of a swash plate is changed by an actuator, ensuring stability on a product-by-product basis while realizing reduction in size. In the compressor, when pressure in a control pressure chamber increases, a movable body moves toward a flange. At this time, the movable body pulls the opposite end side of a swash plate rearward in a swash plate chamber via first and second pulling arms. A link mechanism permits increase of the inclination angle of the swash plate until reaching a maximum value. When the pressure in the control pressure chamber reaches a required control pressure, a rear wall of the movable body which has moved rearward in the swash plate chamber abuts a front face of the flange. This makes it possible in this compressor to restrict the maximum value of the inclination angle of the swash plate. 1. A variable displacement swash plate type compressor comprising:a housing in which a suction chamber, a discharge chamber, a swash plate chamber, and a cylinder bore are formed;a drive shaft extending along a drive axis and rotatably supported in the housing;a swash plate rotatable in the swash plate chamber along with rotation of the drive shaft;a link mechanism that is provided between the drive shaft and the swash plate and permits change of an inclination angle of the swash plate in a direction perpendicular to the drive axis of the drive shaft;a piston reciprocally accommodated in the cylinder bore; a conversion mechanism that reciprocates the piston in the cylinder bore along with rotation of the swash plate at a stroke corresponding to the inclination angle; an actuator capable of changing the inclination angle; anda control mechanism that controls the actuator, whereinthe suction chamber and the swash plate chamber communicate with each other,the actuator includes a partition body provided on the drive shaft, a movable body that is movable along the drive axis of the drive shaft in the swash plate ...

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Номер записи: 66
05-03-2020 дата публикации

Hydrostatic Positive Displacement Machine

Номер: US20200072205A1
Автор: Kroneis Markus
Принадлежит:

A hydrostatic positive displacement machine has an adjustable swept volume, and has a lifting element, a rotor with positive displacement elements supported on the lifting element, and a hydraulic adjusting device that adjusts the swept volume and includes an adjusting piston that is mounted in or on a cylinder, is movable axially rectilinearly in relation to the cylinder, and is adjacent to a pressurizable adjusting chamber. A bearing gap is formed between a circular-cylindrical bearing surface of the adjusting piston and a circular-cylindrical bearing surface of the cylinder. The adjusting piston is mounted hydrostatically, wherein at least three pressure pockets are distributed uniformly in a row over the circumference of a bearing surface. Pressure fluid flows into each pressure pocket via a fixed throttle, which is assigned only to the respective pressure pocket, and flows out of each pressure pocket via the bearing gap. 1. A hydrostatic positive displacement machine that has an adjustable swept volume , comprising:a lifting element;a rotor having a plurality of positive displacement elements supported on the lifting element; anda hydraulic adjusting device configured to adjust the swept volume, the hydraulic adjusting device comprising an adjusting piston that is mounted in or on a cylinder, is movable axially rectilinearly in relation to the cylinder, and is adjacent to a pressurizable adjusting chamber,wherein a bearing gap is defined between a circular-cylindrical first bearing surface of the adjusting piston and a circular-cylindrical second bearing surface of the cylinder,wherein the adjusting piston is mounted hydrostatically,wherein at least three individual pressure pockets are distributed uniformly in a row over a circumference of one of the first and second bearing surfaces, andwherein pressure fluid flows into each respective pressure pocket of the at least three pressure pockets via a respective fixed throttle, which is assigned only to the ...

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Номер записи: 67
14-03-2019 дата публикации

DISPLACEMENT CONTROL VALVE

Номер: US20190078562A1
Автор: Fukudome Kohei, Hayama Masahiro, HIGASHIDOZONO Hideki, KURIHARA Daichi
Принадлежит:

A displacement control valve improved in the function of discharging a liquid refrigerant in a control chamber at startup achieves a reduction in startup time and an improvement in operating efficiency during control of a variable displacement compressor simultaneously. An opening area between a third valve section and a third valve seat surface in a control area to control the flow rate or pressure in a working control chamber is set smaller than an area of an auxiliary communicating passage, thereby reducing the minimum area of a Pc-Ps flow path in the control area. 1. A displacement control valve that controls a flow rate or pressure in a working control chamber according to a degree of opening of a valve unit , comprising:a valve body including a first valve chest that communicates with first communicating passages for passing fluid at control pressure, a second valve chest that has a second valve seat surface for a valve hole communicating with the first valve chest and communicates with second communicating passages for passing fluid at discharge pressure, and a third valve chest that communicates with third communicating passages for passing fluid at suction pressure and has a third valve seat surface;a valve element disposed in the valve body and having an intermediate communicating passage communicating with the first valve chest and the third communicating passages, the valve element having a second valve section that separates from and comes into contact with the second valve seat surface to open and close the valve hole communicating with the first valve chest and the second valve chest, a third valve section that opens and closes opposite to, and in conjunction with, the second valve section and separates from and comes into contact with the third valve seat surface to open and close communication between the intermediate communicating passage and the third communicating passages, and a first valve section that is disposed in the first valve chest and ...

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Номер записи: 68
22-03-2018 дата публикации

Electric Control Valve For A Coolant Compressor

Номер: US20180080440A1
Автор: Domke Daniel
Принадлежит: TE Connectivity Germany GmbH

An electric control valve for a coolant compressor comprises a valve housing, an electric actuating drive, a valve body displaceable by the electric actuating drive between a first position and a second position inside the valve housing, a position sensor determining a position of the valve body, a suction-pressure sensor, and a control system. The control system is adapted to control a coolant flow from a high-pressure region into a crankcase-chamber-pressure region of the coolant compressor by controlling the position of the valve body via the electric actuating drive based on the suction pressure received from the suction-pressure sensor. The control system moves the valve body to the first position to connect the high-pressure region and the crankcase-chamber-pressure region if the suction pressure is below a predetermined threshold. 2. The electric control valve of claim 1 , further comprising an electric interface via which the electric actuating drive claim 1 , the suction-pressure sensor claim 1 , and the control system are connected to a power supply.3. The electric control valve of claim 2 , wherein the electric interface is capable of externally transmitting the suction pressure determined by the suction-pressure sensor.4. The electric control valve of claim 1 , wherein the position sensor is at least one of a Hall effect sensor claim 1 , a magnetoresistive sensor claim 1 , an optical sensor claim 1 , a capacitive sensor claim 1 , and an inductive sensor.5. The electric control valve of claim 1 , wherein the position sensor is part of the control system and determines the position of the valve body as a function of one or more control variables present at the electric actuating drive.6. The electric control valve of claim 1 , wherein the position sensor is part of the control system and determines the position of the valve body as a function of a reference position of the valve body.7. The electric control valve of claim 1 , wherein the control system is ...

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Номер записи: 69
26-03-2015 дата публикации

SWASH PLATE TYPE VARIABLE DISPLACEMENT COMPRESSOR

Номер: US20150086391A1
Автор: FUJIWARA Shohei, NAKAIMA Hiroyuki, OTA Masaki, Suzuki Takahiro, Yamamoto Shinya
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

In a swash plate type variable displacement compressor, a rear housing has a pressure regulation chamber into which a rear end of a drive shaft body, a projection of a second cylinder block, a second sliding bearing, and a rear end of a second support member project. In the compressor, when a drive shaft is rotated, heat is generated in the drive shaft body, the projection, the second sliding bearing, and the second support member to heat the refrigerant gas in the pressure regulation chamber. Accordingly, in the compressor, temperature of the refrigerant gas in the pressure regulation chamber is hard to drop. Therefore, the pressure of the refrigerant gas flowing from the pressure regulation chamber to the pressure control chamber is varied quickly and a movable body is preferably moved with the pressure in the pressure control chamber. 1. A swash plate type variable displacement compressor comprising:a housing having therein a suction chamber, a discharge chamber, a swash plate chamber, and a plurality of cylinder bores;a drive shaft rotatably supported in the housing;a swash plate which is rotatable in the swash plate chamber with the rotation of the drive shaft;a link mechanism which is disposed between the drive shaft and the swash plate and allows a change in an inclination angle of the swash plate with respect to the direction perpendicular to the axis of the drive shaft;a plurality of pistons which is reciprocally received in the respective cylinder bores;a conversion mechanism which converts the rotation of the drive shaft into reciprocal movement of the pistons in the respective cylinder bores in conjunction with the swash plate with a stroke length according to the inclination angle of the swash plate;an actuator for changing the inclination angle of the swash plate; anda control mechanism which controls the actuator, whereinthe housing has therein a pressure regulation chamber, the pressure regulation chamber is disposed radially inward of the discharge ...

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Номер записи: 70
02-04-2015 дата публикации

SWASH PLATE TYPE VARIABLE DISPLACEMENT COMPRESSOR

Номер: US20150093263A1
Автор: BAN Takahisa, KIMOTO Yoshio, MATSUBARA Ryo, Onishi Toru, SAKAKIBARA Kengo, SHINTOKU Noriyuki, YOKOI Yuki
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

A swash plate type variable displacement compressor includes a collection and supply mechanism. The collection and supply mechanism has collection passages, supply passages, an annular space, an inlet port, and an outlet port. The inlet port is communicable with a working collection passage of the collection passages. The outlet port is communicable with a working supply passage of the supply passages. When the inclination angle of the swash plate is maximum, residual refrigerant gas in a compression chamber of collection phase is collected through the working collection passage and the collected refrigerant gas is supplied to a compression chamber of supply phase. On the other hand, when the inclination angle is less than the maximum, residual refrigerant gas is supplied no more into the supply-phase compression chamber. 1. A swash plate type variable displacement compressor comprising:a drive shaft having an axis;a housing supporting the drive shaft so that the drive shaft is rotatable about the axis, the housing having therein a plurality of cylinder bores around the axis and a crank chamber;a swash plate which is rotatable with rotation of the drive shaft in the crank chamber;an inclination angle change mechanism which changes an inclination angle of the swash plate with respect to a plane extending perpendicularly to the axis of the drive shaft;a plurality of pistons reciprocally movably received in respective cylinder bores in accordance with the rotation of the swash plate and forming plurality of compression chambers in the respective cylinder bores, wherein when each piston is moved in the corresponding cylinder bore, re-expansion phase, suction phase, compression phase and discharge phase are caused in the corresponding compression chamber;a control mechanism controlling the inclination angle change mechanism; anda collection and supply mechanism which collects refrigerant gas in one of the compression chambers and supplies the collected refrigerant gas to ...

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Номер записи: 71
30-03-2017 дата публикации

Device For Sealing And Inflating Inflatable Objects

Номер: US20170087783A1
Автор: Detering Rainer, Zaum Christopher
Принадлежит: CONTINENTAL REIFEN DEUTSCHLAND GMBH

Devices for sealing and inflating inflatable objects, in particular for sealing and inflating motor vehicle tires, wherein the devices have as a source of compressed gas a compressor unit, which is formed as a reciprocating piston compressor driven by a slider crank mechanism and has a piston moved in an oscillating manner in a cylinder, and wherein the piston and the cylinder delimit a compression chamber and the cylinder is closed on the output side by a cylinder head with an outlet valve. 2. The device as claimed in further comprising a pressure gage and a reservoir for an automatic sealant that can be filled into the inflatable object and a valve-and-distributor unit for sealant and compressed gas claim 1 , which connects the reservoir and the compressor unit and has a line that can be connected to the inflatable object.3. The device as claimed in claim 1 , wherein the dead air volume is provided by a pressure chamber which is connected to the compression chamber and the content of which can be varied depending on the temperature of the cylinder head.4. The device as claimed in claim 1 , wherein a further pressure chamber takes the form of a second cylinder arranged in a guided claim 1 , temperature-dependently displaceable piston slide valve.5. The device as claimed in claim 4 , wherein the piston slide valve can be actuated by an actuator of a shape memory alloy.6. The device as claimed in claim 4 , wherein the piston slide valve can be displaced by an actuator that is actuated with the aid of a thermobimetal element.7. The device as claimed in claim 4 , wherein the piston slide valve can be actuated by an electrical or electromechanical actuator claim 4 , which is controlled by a monitoring unit that can be activated by way of temperature sensors.8. The device as claimed in claim 1 , wherein the content of the dead air volume or pressure chamber can be increased to at least 5% of the compression chamber.9. The device as claimed in claim 1 , wherein the ...

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Номер записи: 72
21-03-2019 дата публикации

VARIABLE DISPLACEMENT COMPRESSOR

Номер: US20190085834A1
Автор: Taguchi Yukihiko
Принадлежит: SANDEN HOLDINGS CORPORATION

An object is to provide a variable displacement compressor in which a structure is simple and it is easy to lay out valves. On a downstream side of a first control valve that controls an opening degree of a pressure supply passage, a second control valve is provided, which includes a spool having a first valve portion and a second valve portion. When a pressure Pm of the pressure supply passage is higher than a pressure Pc of the crank chamber, the first valve portion opens the pressure supply passage, and the second valve portion closes the first pressure release passage. When the pressure Pm is lower than the pressure Pc, the first valve portion closes the pressure supply passage, and the second valve portion sets an opening degree of the first pressure release passage to a maximum opening degree. 1. A variable displacement compressor in which a discharge displacement is controlled by pressure regulation in a crank chamber , comprising:a first control valve that controls an opening degree of a pressure supply passage that causes a discharge chamber and the crank chamber to communicate with each other; anda second control valve including a spool having a first valve portion that opens and closes the pressure supply passage between the first control valve and the crank chamber and a second valve portion that opens and closes a pressure release passage that causes the crank chamber and a suction chamber to communicate with each other,wherein the spool moves in response to a difference between a pressure of the pressure supply passage between the first control valve and the second control valve and a pressure of the crank chamber,when the pressure of the pressure supply passage between the first control valve and the second control valve is higher than the pressure of the crank chamber, the first valve portion opens the pressure supply passage to supply a fluid from the discharge chamber to the crank chamber, and the second valve portion sets an opening degree of the ...

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Номер записи: 73
30-03-2017 дата публикации

Two-Way Wobble Plate Compressor

Номер: US20170089329A1
Автор: Chen Yujun, Shen Dazi, WANG Jian
Принадлежит:

A two-way wobble plate compressor, comprising: a cylinder block (); a two-way piston () capable of reciprocating within a cylinder bore () of the cylinder block (); a drive assembly () driving the two-way piston (), the drive assembly () including a drive shaft (), a rotor () fixedly connected with the drive shaft (), and an annular wobble plate () fitting with the rotor (); the rotor () has an inner surface () for fitting with the annular wobble plate (), the inner surface () include a first inner surface () and a second inner surface (), which are oppositely arranged, and a rotor contact surface (); the wobble plate () is partially encircled within the inner surface () of the rotor (), and includes a first peripheral portion (), a second peripheral portion (), and a wobble plate contact surface (); a first bearing () is provided between the first inner surface () and the first peripheral portion (), a second bearing () is provided between the second inner surface () and the second peripheral portion (), and a third bearing () is provided between the rotor contact surface () and the wobble plate contact surface (). The two-way wobble plate compressor of the present invention may significantly reduce friction loss. 1. A two-way wobble plate compressor , comprising:a cylinder block, the cylinder block having a cylinder bore;a two-way piston capable of reciprocating within the cylinder bore of the cylinder block;a drive assembly driving the two-way piston, the drive assembly including a drive shaft, a rotor fixedly connected with the drive shaft, and an annular wobble plate fitting with the rotor, the rotor having a central plane angled to a perpendicular plane of the drive shaft, the central plane of the wobble plate being coincident with the central plane of the rotor, when the drive shaft rotates, the rotor drives the two-way piston via the wobble plate to perform reciprocating motion; characterized in that:the rotor has an inner surface for fitting with the ...

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Номер записи: 74
19-03-2020 дата публикации

DISPLACEMENT CONTROL VALVE

Номер: US20200088178A1
Автор: Fukudome Kohei, HIGASHIDOZONO Hideki, KURIHARA Daichi, SHIRAFUJI Keigo
Принадлежит:

Provided is a displacement control valve capable of quickly reducing pressure in a control chamber to a level of pressure kept during continuous driving, at the time of the startup of a variable displacement compressor. 1. A displacement control valve comprising:a valve housing comprising a first valve chest formed midway along a discharge-side passage that connects a discharge chamber for discharging fluid and a control chamber for controlling a fluid discharge rate, a second valve chest formed midway along a suction-side passage that connects a suction chamber for sucking fluid and the control chamber, and a pressure chamber formed across the first valve chest from the second valve chest;a valve body having a first valve section for opening and closing the discharge-side passage in the first valve chest, and a second valve section for opening and closing the suction-side passage in the second valve chest, the first valve section and the second valve section being integrally formed and performing opening and closing operations in opposite directions by reciprocation thereof; anda solenoid for exerting electromagnetic drive force on the valve body in such a direction as to close the first valve section, whereinthe valve housing is provided with at least a part of a first communicating passage that communicates with the pressure chamber at one end thereof and that is communicable with the second valve chest at the other end thereof.2. The displacement control valve according to claim 1 , wherein the first communicating passage has a hole extending in an axial direction of the valve housing.3. The displacement control valve according to claim 1 , whereinthe valve body has a follow constituting a second communicating passage that axially connects the second valve chest and the pressure chamber,the pressure chamber has a pressure-sensitive element and an adapter housed therein, the pressure-sensitive element exerting an urging force in such a direction as to open the ...

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Номер записи: 75
12-05-2022 дата публикации

VARIABLE DISPLACEMENT COMPRESSOR

Номер: US20220145869A1
Автор: Taguchi Yukihiko
Принадлежит: SANDEN AUTOMOTIVE COMPONENTS CORPORATION

Provided is a variable displacement compressor that is directed to cost reduction and productivity enhancement of a second control valve that adjusts an opening degree of a discharge passage for discharging a refrigerant in a controlled pressure chamber to a suction chamber. The variable displacement compressor includes the second control valve () configured to decrease an opening degree of the discharge passage to a minimum value when a first end surface () of a valve body () accommodated in a valve chamber () comes into contact with a first end wall surface () of the valve chamber () to close a second port () and a third port (), and configured to increase the opening degree of the discharge passage to a maximum value when the first end surface () of the valve body () separates from the first end wall surface () of the valve chamber () to open the second port () and the third port (). The valve body () is supported movably in a direction perpendicular to the first end wall surface () without contact with a peripheral wall surface () of the valve chamber (), by a guide shaft portion () being slidably inserted into a receiving portion () formed at a radially center portion of the valve body (). 1. A variable displacement compressor which is configured to vary a discharge volume by supplying a refrigerant in a discharge chamber to a controlled pressure chamber through a supply passage and also discharging a refrigerant in the controlled pressure chamber to a suction chamber through a discharge passage so as to adjust a pressure in the controlled pressure chamber , the variable displacement compressor comprising:a first control valve configured to adjust an opening degree of the supply passage;a check valve that is provided in the supply passage at a position closer to the controlled pressure chamber than the first control valve and is configured to block a refrigerant flowing from the controlled pressure chamber toward the first control valve;a throttle passage ...

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Номер записи: 76
28-03-2019 дата публикации

DRIVE SYSTEM FOR A POSITIVE DISPLACEMENT PUMP

Номер: US20190093651A1
Автор: Collins Adam K., Earles Jeffrey A., Hines Bradley H., Koehn Brian W., Scheierl Paul W.
Принадлежит:

A drive system for a pump includes a housing, first and second fluid displacement members, a solenoid disposed within the housing, and a reciprocating member configured to be driven by the solenoid. The reciprocating member is connected to the first and second fluid displacement members and is configured to mechanically displace the first and second fluid displacement members. 1. A drive system for a displacement pump , the drive system comprising:a first housing;a first fluid displacement member disposed at a first end of the first housing;a second fluid displacement member disposed at a second end of the first housing;a solenoid disposed within the first housing; anda reciprocating member disposed within the solenoid and configured to be driven by the solenoid;wherein the reciprocating member is connected to the first fluid displacement member and the second fluid displacement member to mechanically displace the first fluid displacement member and the second fluid displacement member.2. The drive system of claim 1 , wherein the first fluid displacement member comprises a first diaphragm and the second fluid displacement member comprises a second diaphragm claim 1 , wherein the first diaphragm claim 1 , the second diaphragm claim 1 , the reciprocating member claim 1 , and the solenoid are disposed coaxially on a pump axis claim 1 , and wherein the reciprocating member is configured to reciprocate on the pump axis.3. The drive system of claim 2 , further comprising:a first fluid cover abutting the first end of the first housing, wherein a circumferential edge of the first diaphragm is retained between the first fluid cover and the first housing.4. The drive system of claim 2 , wherein:the first diaphragm includes a first attachment screw;the reciprocating member is connected to the first attachment screw.5. The drive system of claim 1 , wherein the reciprocating member is connected to the first fluid displacement member by a first intermediate member and connected ...

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Номер записи: 77
06-04-2017 дата публикации

Two-Way Wobble Plate Compressor

Номер: US20170096992A1
Автор: Chen Yujun, Shen Dazi, WANG Jian
Принадлежит:

A two-way wobble plate compressor, comprising: a cylinder block (); a two-way piston () capable of reciprocating within a cylinder bore () of the cylinder block (); a drive shaft () driving the two-way piston (); the two-way wobble plate compressor further includes a bearing unit, the bearing unit including a plurality of contact balls and an inner ring and an outer ring fitting with the plurality of contact balls, and the bearing unit having a central plane (P-P) angled to a perpendicular plane (I-I) of the drive shaft, wherein said drive shaft () is sleeved in the inner ring of the bearing unit, and is fixed to the inner ring; the outer ring of said bearing unit is coupled to the two-way piston, and when the drive shaft rotates, the two-way piston is driven via the bearing unit to perform reciprocating motion. The two-way wobble plate compressor of the present invention has a compact design, and may significantly reduce friction loss. 1. A two-way wobble plate compressor , comprising:a cylinder block, the cylinder block having a cylinder bore;a two-way piston capable of reciprocating within the cylinder bore of the cylinder block;a drive shaft driving the two-way piston; characterized in that:the two-way wobble plate compressor further includes a bearing unit, the bearing unit including a plurality of contact balls and an inner ring and an outer ring fitting with the plurality of contact balls, and the bearing unit having a central plane angled to a perpendicular plane of the drive shaft, whereinsaid drive shaft is sleeved in the inner ring of the bearing unit, and is fixed to the inner ring;the outer ring of said bearing unit is coupled to the two-way piston, and when the drive shaft rotates, the two-way piston is driven via the bearing unit to perform reciprocating motion.2. The two-way wobble plate compressor according to claim 1 , wherein said bearing unit is a double row angular contact ball bearing unit.3. The two-way wobble plate compressor according to ...

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Номер записи: 78
16-04-2015 дата публикации

VARIABLE DISPLACEMENT SWASH PLATE COMPRESSOR

Номер: US20150104334A1
Автор: NISHII Kei, OGAWA Hiromichi, OTA Masaki, YAMASHITA Hideharu
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

A variable displacement swash plate compressor includes a control pressure chamber and a displacement control valve that controls the pressure of the control pressure chamber. The displacement control valve includes an electromagnetic solenoid, a driving force transmission member, a valve body, and a pressure sensing mechanism. An accommodation chamber accommodates the pressure sensing. A valve chamber accommodates the valve body having a valve opening degree determined by an urging force applied to the valve body through the driving force transmission member and by an urging force applied to the valve body by the expansion and contraction of the pressure sensing mechanism. The valve body and the pressure sensing mechanism form a valve unit. When the electromagnetic solenoid is deactivated, the pressure of the accommodation chamber acts on a back surface of the pressure sensing mechanism so that a force in the open direction is applied to the valve unit. 1. A variable displacement swash plate compressor comprising:a housing including a discharge pressure region, of which pressure is a discharge pressure, and a suction pressure region, of which pressure is a suction pressure;a rotation shaft supported by the housing;a swash plate accommodated in the housing, wherein the swash plate rotates when receiving driving force from the rotation shaft and inclines relative to the rotation shaft at an inclination angle that is variable;a piston engaged with the swash plate;a movable body coupled to the swash plate and adapted to vary the inclination angle of the swash plate;a control pressure chamber that is defined by the movable body and adapted to move the movable body in an axial direction of the rotation shaft when control gas drawn into the control pressure chamber changes pressure of the control pressure chamber;a discharge passage extending from the control pressure chamber to the suction pressure region; anda displacement control valve adapted to control the pressure ...

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Номер записи: 79
12-04-2018 дата публикации

PUMP OPERABLE IN ONE OF QUICK PUMPING MODE AND HIGH-PRESSURE PUMPING MODE SELECTIVELY

Номер: US20180100499A1
Автор: WANG Lopin
Принадлежит:

A pump includes: a base with a through-hole flanked by an intake-hole and discharge-hole; an external cylinder fixed to the base; an end-fitting element disposed at external cylinder and having a through-hole; an internal cylinder inserted into the through-hole of end-fitting element and thereby partially received in external cylinder to fit coaxially inside external cylinder; a handle fixed to internal cylinder; a delivery pipe fixed to the base's through-hole and received coaxially in internal cylinder; an internal cylinder piston fixed to delivery pipe and received in internal cylinder; an external cylinder piston fixed to internal cylinder, received in external cylinder, and having a through-hole penetrated by delivery pipe; a check-valve disposed in intake-hole to ensure unidirectional gas movement therein; a discharge-valve disposed in discharge-hole; a control element for controlling discharge-valve to open and close; and a guide-channel communicating with the base's through-hole and intake-hole and connected to a nozzle. 1. A pump operable in one of a quick pumping mode and a high-pressure pumping mode selectively , comprising:a base centrally provided with a through hole flanked by an intake hole and a discharge hole;an external cylinder with an end fixed to the base;an end fitting element disposed at another end of the external cylinder and centrally provided with a through hole;an internal cylinder insertedly disposed into the through hole of the end fitting element and thereby partially received in the external cylinder so as to fit coaxially inside the external cylinder;a handle fixed to an exposed end of the internal cylinder;a delivery pipe with an end fixed to the through hole of the base and thereby is received coaxially in the internal cylinder;an internal cylinder piston fixed to another end of the delivery pipe and received in the internal cylinder;an external cylinder piston fixed to an inner end of the internal cylinder, received in the ...

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Номер записи: 80
26-03-2020 дата публикации

Variable displacement compressor

Номер: US20200095986A1
Автор: Satoshi Terauchi, Takashi Toida, Tomohiro Iguchi, Yoshie Matsuzaki, Yukihiko Taguchi
Принадлежит: Sanden Automotive Components Corp

Provided is a variable displacement compressor capable of preventing intrusion of foreign matter into a second control valve. A variable displacement compressor 100 is equipped with a first control valve 300 controlling the opening degree of a supply passage 145 , a check valve 350 , a second control valve 400 controlling the opening degree of a discharge passage 146 , and a back-pressure relief passage 147 . The second control valve 400 has a back-pressure chamber 410 communicating with an intermediate supply passage 145 b 1 , a valve chamber 420 in which a valve hole 103 d and a discharge hole 431 a are open and which constitutes a part of the discharge passage 146 , a dividing member 430 dividing the back-pressure chamber 410 and the valve chamber 420 from each other, and a spool 440 . In a state in which the first control valve 300 closes the supply passage 145 and in which a valve seat side end surface 442 a of a valve portion 442 of the spool 440 is spaced away from a valve seat 103 f to a maximum degree, an end wall side end surface 442 b of the valve portion 442 abuts an end wall 432 of the dividing member 430 , whereby communication between the valve chamber 420 and the back-pressure chamber 410 via a through-hole 432 a of the end wall 432 is cut off.

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Номер записи: 81
08-04-2021 дата публикации

DISPLACEMENT CONTROL VALVE

Номер: US20210102532A1
Автор: Fukudome Kohei, Hayama Masahiro, KURIHARA Daichi, SHIRAFUJI Keigo
Принадлежит:

A displacement control valve includes a housing a first, a second, and a third chamber; a valve body having a first reciprocating valve part that opens or closes discharge paths in the first chamber; and a solenoid that applies electromagnetic force to the valve body in the direction that closes the first valve part. The control valve has a spool valve part formed on the external circumference of the valve body and a spool seating part formed on the internal circumference of the valve housing and that is opened while the first valve part is closed and vice versa upon reciprocation of the valve body to control the rate of flow between a control chamber and an inlet chamber. 1: A displacement control valve comprising:a valve housing including a first chamber formed between discharge paths that allow a discharge chamber for discharging fluid to communicate with a control chamber for controlling a volume of the discharged fluid, a second chamber formed between inlet paths that allow an inlet chamber for sucking the fluid to communicate with the control chamber, and a third chamber opposed to the second chamber across the first chamber;a valve body that has a first valve part for opening or closing the discharge paths in the first chamber and that is reciprocated to open or close the discharge paths; anda solenoid configured to apply electromagnetic force to the valve body in the direction that closes the first valve part,wherein the displacement control valve has a spool valve structure that comprises a spool valve part formed on an external circumference of the valve body and a spool seating part formed on an internal circumference of the valve housing and that is opened while the first valve part is closed and vice versa upon reciprocation of the valve body to control the rate of flow between the control chamber and the inlet chamber.2: The displacement control valve according to claim 1 , wherein the spool seating part comprises a step formed on the internal ...

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Номер записи: 82
08-04-2021 дата публикации

Suction damping case

Номер: US20210102556A1
Автор: Bok Ki Park, Eun Gi Son, Hew Nam Ahn, Koong Kyu Nam, Seong Gyu Gong
Принадлежит: Hanon Systems Corp

Disclosed is a suction damping case. A refrigerant introduced into the suction damping case flows for a predetermined period of time at reduced pressure and speed, and then is discharged to the outside of the body, so that a damping function can be made. When the suction damping case is coupled to a rear housing, a hook and an embossing prevents the suction damping case from being separated.

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Номер записи: 83
21-04-2016 дата публикации

Pulseless positive displacement pump and method of pulselessly displacing fluid

Номер: US20160108904A1
Автор: Adam K. Collins, Bradley H. Hines, Brian W. Koehn, Jeffrey A. Earles, Paul W. Scheierl
Принадлежит: GRACO MINNESOTA INC

A double displacement pump includes an inlet manifold, an outlet manifold, a first fluid cavity between the inlet manifold and the outlet manifold, a second fluid cavity between the inlet manifold and the outlet manifold, and a drive system that includes a housing defining an internal pressure chamber, a piston disposed within the internal pressure chamber and having a first and second pull chambers and a central slot for receiving a drive, a first pull with a free end slidably secured within the first pull chamber and a second pull with a free end slidably secured within the second pull chamber, and a first fluid displacement member coupled to the first pull and a second fluid displacement member coupled to the second pull.

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Номер записи: 84
02-06-2022 дата публикации

Capacity control valve

Номер: US20220170564A1
Автор: Keigo Shirafuji, Kohei Fukudome, Masahiro Hayama, Toshinori Kanzaki, Wataru Takahashi
Принадлежит: Eagle Industry Co Ltd

In a capacity control valve, a position of a valve element is changed by drawing a movable iron core to a fixed iron core with magnetic force by energization of an electromagnetic coil. The iron core on one side includes a projected portion on the radially outer side, the iron core on the other side includes a projected portion on the radially inner side, and these projected portions are capable of being loosely fitted to each other when the movable iron core is drawn to the fixed iron core. The projected portion is formed to be smaller than an opposing surface of the iron core facing an effective magnetic force surface of a distal end of the projected portion and formed in a tapered shape.

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Номер записи: 85
29-04-2021 дата публикации

TILT LINKAGE FOR VARIABLE STROKE PUMP

Номер: US20210123421A1
Автор: Anderson Milton, Huangpu Zhe, Wang Jianke, Wise Leslie, Zhai Xiaonan
Принадлежит: CW HOLDINGS LTD

A variable stroke high pressure pump is disclosed. The pump uses a wobble plate design with dynamically variable tilt to provide continuous adjustment of pump stroke length and output. Dynamically variable tilt is accomplished using a linearly actuated tilt thruster rotationally coupled to the drive shaft to maintain a selected tilt of the wobble plate through the rotation of the wobble plate. 1. An apparatus , comprising:a drive shaft coupled to a drive;a wobble plate rotationally coupled to the drive shaft;a plurality of displacement rods coupled to the wobble plate; and a slider slidably coupled to the drive shaft and coupled to a linear actuator disposed within the drive shaft; and', 'a thruster assembly coupled to the slider, extending to the wobble plate, and coupled to the wobble plate by a rotational thrust bearing., 'a tilt actuator assembly rotationally coupled to the drive shaft, the tilt actuator assembly comprising2. The apparatus of claim 1 , wherein the linear actuator is coupled to a hydraulic member located at a fluid end of the apparatus.3. (canceled)4. The apparatus of claim 2 , wherein the linear actuator is coupled to the hydraulic member by a rotary bearing.5. The apparatus of claim 4 , wherein the rotary bearing comprises a coupling plate disposed between two thrust bearings.6. The apparatus of claim 1 , wherein the slider is a crosshead attached to the drive shaft by a guide ring.7. The apparatus of claim 5 , wherein a first thrust bearing of the two thrust bearings comprises a roller between at least two rings claim 5 , and a second thrust bearing of the two thrust bearings comprises a plurality of rollers claim 5 , each coupled to a hub of the second thrust bearing by an axle.8. The apparatus of claim 1 , wherein the thruster assembly comprises a yaw limit assembly for controlling yaw movement of the wobble plate.9. The apparatus of claim 8 , wherein the thrust assembly comprises a thrust block coupled to the wobble plate and a thrust rod ...

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Номер записи: 86
29-04-2021 дата публикации

CAPACITY CONTROL VALVE

Номер: US20210123422A1
Автор: EJIMA Takahiro, Fukudome Kohei, Hayama Masahiro, KURIHARA Daichi, Ogawa Yoshihiro, SHIRAFUJI Keigo, TAKAHASHI Wataru
Принадлежит:

A capacity control valve includes a valve housing provided with a discharge port, suction ports, a control port and a primary valve driven by a solenoid. The capacity control valve further includes a differential CS valve which includes a differential CS valve body disposed so as to be relatively movable in an axial direction with respect to the primary valve bodies. The differential CS valve body divides a control pressure chamber into a discharge side control chamber communicating with the first control port and a suction side control chamber communicating with the second control port in the axial direction and operates the differential CS valve body by a differential pressure between the discharge side control chamber and the suction side control chamber so as to open the second control port and the suction port. 1. A capacity control valve comprising:a valve housing provided with a discharge port allowing a discharge fluid of a discharge pressure to pass therethrough, a suction port allowing a suction fluid of a suction pressure to pass therethrough, and a control port allowing a control fluid of a control pressure to pass therethrough; anda primary valve which includes a primary valve seat and a primary valve body driven by a solenoid and controls a flow of a fluid between the discharge port and the control port by a movement of the primary valve body, the control port including a first control port and a second control port,the capacity control valve further comprising a differential CS valve which includes a differential CS valve body disposed so as to be relatively movable in an axial direction with respect to the primary valve body and dividing a control pressure chamber into a discharge side control chamber and a suction side control chamber in the axial direction, the control pressure chamber communicating with the control port, the discharge side control chamber communicating with the first control port, the suction side control chamber communicating ...

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Номер записи: 87
29-04-2021 дата публикации

CAPACITY CONTROL VALVE

Номер: US20210123423A1
Автор: EJIMA Takahiro, Fukudome Kohei, Hayama Masahiro, KURIHARA Daichi, Ogawa Yoshihiro, SHIRAFUJI Keigo, TAKAHASHI Wataru
Принадлежит:

A capacity control valve includes a valve housing provided with a discharge port, suction ports, and a control port and a primary valve including a primary valve seat and a primary valve body driven by a solenoid, the primary valve being configured to open and close a communication between the discharge port and the control port in accordance with a movement of the primary valve body. The capacity control valve further includes a differential CS valve which is openable and closable by a pressure difference between the control pressure Pc and the suction pressure Ps and an electromagnetic CS valve that is openable and closable so as to close the control port and the suction port in a non-energized state of the solenoid in accordance with the movement of the primary valve body. 1. A capacity control valve comprising:a valve housing provided with a discharge port allowing a discharge fluid of a discharge pressure to pass therethrough, a suction port allowing a suction fluid of a suction pressure to pass therethrough, and a control port allowing a control fluid of a control pressure to pass therethrough;a primary valve including a primary valve seat and a primary valve body driven by a solenoid, the primary valve being configured to open and close a communication between the discharge port and the control port in accordance with a movement of the primary valve body;a differential CS valve that is openable and closable by a pressure difference between the control pressure and the suction pressure; andan electromagnetic CS valve that is openable and closable so as to close the control port and the suction port in a non-energized state of the solenoid in accordance with the movement of the primary valve body.2. The capacity control valve according to claim 1 ,wherein a differential CS valve body of the differential CS valve partially constitutes an electromagnetic CS valve seat of the electromagnetic CS valve.3. The capacity control valve according to claim 2 ,wherein the ...

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Номер записи: 88
02-04-2020 дата публикации

3D-Printed Oil Separation for Reciprocating Compressors

Номер: US20200102943A1
Автор: Cihlar Steven, Fels Steven, Pawar Pruthviraj Nagnath, Picouet Jean-Louis
Принадлежит:

A 3D-printed oil separation assembly for use in a reciprocating compressor is provided. The compressor includes a suction chamber, a crankcase chamber, and at least one partition member at least partially separating the suction chamber and the crankcase chamber. The at least one partition member further includes at least one opening. The 3D-printed oil separation assembly comprises a coalescing structure positioned within the crankcase chamber adjacent the at least one partition member at the at least one opening; and at least one securing structure secured in operable relation with the at least one demisting structure so as to secure the coalescing structure relative to the opening. The coalescing structure comprises at least one structure selected from the group consisting of a baffled structure, a demisting structure, and combinations thereof. At least a portion of the coalescing structure is 3D-printed. 1. A 3D-printed oil separation assembly for use in a reciprocating compressor , the compressor comprising a suction chamber , a crankcase chamber , and at least one partition member at least partially separating the suction chamber and the crankcase chamber , the at least one partition member including at least one opening , the oil separation assembly comprising:a coalescing structure, wherein at least a portion of the coalescing structure is positioned within the crankcase chamber with respect to the at least one partition member at the at least one opening; andat least one securing structure secured in operable relation with the coalescing structure so as to secure the at least one coalescing structure relative to the opening,wherein at least a portion of the coalescing structure is 3D printed.2. The 3D-printed oil separation assembly of claim 1 , wherein the coalescing structure comprises at least one structure selected from the group consisting of a baffled structure claim 1 , a demisting structure claim 1 , and combinations thereof.3. The 3D-printed oil ...

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Номер записи: 89
30-04-2015 дата публикации

SWASH PLATE TYPE VARIABLE DISPLACEMENT COMPRESSOR

Номер: US20150118074A1
Автор: NAKAIMA Hiroyuki, SAKAKIBARA Kengo, Yamamoto Shinya, YAMAZAKI Yusuke
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

In a swash plate type variable displacement compressor, a lug plate includes a cylinder chamber and first and second guide surfaces. Inner peripheral edges of the first and second guide surfaces are defined respectively at parts where the peripheral edge of the cylinder chamber and the guide surfaces overlap with each other. When the inclination angle of a swash plate of the compressor is maximum, first and second guided surfaces and the first and second guide surfaces, respectively are brought into line contact with each other at a first position. At this time, first and second slide contact widths are maximum. When the inclination angle of the swash plate is minimum, the first and second guided surfaces and the first and second guide surfaces, respectively are brought into line contact with each other at a second position. At this time, the first and second slide contact widths are minimum. 1. A swash plate type variable displacement compressor comprising:a housing having therein a suction chamber, a discharge chamber, a swash plate chamber and a plurality of cylinder bores;a drive shaft rotatably supported in the housing and having an axis of rotation;a swash plate that is rotatable in the swash plate chamber with the rotation of the drive shaft;a link mechanism that is disposed between the drive shaft and the swash plate and allows a change in inclination angle of the swash plate with respect to a plane extending perpendicularly to the axis of rotation of the drive shaft;a plurality of pistons that is reciprocally received in the respective cylinder bores;a conversion mechanism that converts the rotation of the drive shaft into reciprocal movement of the pistons in the respective cylinder bores with a stroke length according to the inclination angle of the swash plate;an actuator that changes the inclination angle of the swash plate; anda control mechanism that controls the actuator, whereinthe link mechanism includes a lug member that is fixed on the drive ...

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Номер записи: 90
09-06-2022 дата публикации

CAPACITY CONTROL VALVE

Номер: US20220178358A1
Автор: EJIMA Takahiro, Fukudome Kohei, Hayama Masahiro, SHIRAFUJI Keigo, TAKAHASHI Wataru
Принадлежит:

A capacity control valve includes a valve housing provided a discharge port through which a discharge fluid of discharge pressure Pd passes, a suction port through which a suction fluid of suction pressure Ps passes, and a control port through which a control fluid of control pressure Pc passes, a rod configured to be driven by a solenoid, a main valve formed by a main valve seat and a main valve element and configured for opening and closing a communication between the discharge port and the control port in accordance with a movement of the rod, and a CS valve provided between the control port and the suction port and controlled by a dynamic pressure of a fluid flowing from the discharge port to the control port at an opening state of the main valve. 1: A capacity control valve comprising:a valve housing provided with a discharge port through which a discharge fluid of discharge pressure passes, a suction port through which a suction fluid of suction pressure passes, and a control port through which a control fluid of control pressure passes;a rod configured to be driven by a solenoid;a main valve formed by a main valve seat and a main valve element and configured for opening and closing a communication between the discharge port and the control port in accordance with a movement of the rod; anda CS valve provided between the control port and the suction port and controlled by a dynamic pressure of a fluid flowing from the discharge port to the control port at an opening state of the main valve.2: The capacity control valve according to claim 1 , whereinthe control port communicates with a space which is opened and closed by the main valve.3: The capacity control valve according to claim 1 , whereinthe CS valve includes a cylindrical CS valve element, and a spring configured to bias the CS valve element in a valve opening direction of the CS valve.4: The capacity control valve according to claim 3 , whereinthe CS valve element has a receiving surface extending in a ...

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Номер записи: 91
18-04-2019 дата публикации

SHOE AND SWASH PLATE COMPRESSOR INCLUDING THE SHOE

Номер: US20190113030A1
Автор: GOTO Shingo, SHIBATA Masato, TAGO Yasuyuki
Принадлежит: TAIHO KOGYO CO., LTD.

There is provided a shoe capable of suppressing deformation of a member on which the shoe slides. The shoe includes: a first sliding surface which slides on a concave surface of a piston (first movable member); and a second sliding surface which bulges toward a side opposite to the first sliding surface and slides on a flat surface of a swash plate (second movable member). The second sliding surface includes: a curved outer peripheral portion which is provided along an outer periphery of the second sliding surface ; and a central portion which is provided at a center of the second sliding surface so as to be continuous with the curved outer peripheral portion and has a radius of curvature greater than a radius of curvature of the curved outer peripheral portion 1. A shoe comprising:a first sliding surface which slides on a concave surface of a first movable member; anda second sliding surface which bulges toward a side opposite to the first sliding surface and slides on a flat surface of a second movable member, the second sliding surface includinga curved outer peripheral portion which is provided along an outer periphery of the second sliding surface, anda central portion which is provided at a center of the second sliding surface so as to be continuous with the curved outer peripheral portion and has a radius of curvature greater than a radius of curvature of the curved outer peripheral portion,wherein the central portion has a diameter of not less than 5 mm and a bulging height of not greater than 3 μm.2. The shoe according to claim 1 , wherein a bulging height of the second sliding surface is not greater than 15 μm.3. A swash plate compressor comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the shoe according to ; and'}a swash plate which is the second movable member and has a resin coating layer provided on the flat surface of the second movable member.4. (canceled)5. A swash plate compressor comprising:{'claim-ref': {'@idref': 'CLM-00002', 'claim ...

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Номер записи: 92
13-05-2021 дата публикации

VARIABLE STROKE PUMP

Номер: US20210140415A1
Автор: Anderson Milton, Embry Ronald G., Wang Jianke, Wise Leslie, Zhai Xiaonan
Принадлежит: CW HOLDING LTD

A variable stroke high pressure pump is disclosed. The pump uses a wobble plate design with dynamically variable tilt to provide continuous adjustment of pump stroke length and output. Dynamically variable tilt is accomplished using a linearly actuated tilt thruster rotationally coupled to the drive shaft to maintain a selected tilt of the wobble plate through the rotation of the wobble plate. 1. A pump , comprising:a drive shaft coupled to a drive;a wobble plate attached to the drive shaft by a swivel mount with a wobble plate key extending radially outward from the swivel mount;a plurality of displacement rods, each having a first end and a second end, with the first end of each displacement rod disposed against a first surface of the wobble plate and the second end of each displacement rod connected with a plunger; anda tilt actuator assembly disposed around the drive shaft, the tilt actuator assembly comprising a slider having an interior surface with a slot formed therein and a thruster coupled to the slider and extending toward a second surface of the wobble plate opposite the first surface, the tilt actuator assembly further comprising a key extending radially outward from the drive shaft and mated with the slot and a linear actuator slidably disposed against the slider.2. The pump of claim 1 , further comprising a thrust bearing between each displacement rod and the wobble plate.3. The pump of claim 1 , wherein the swivel mount is ball-shaped.4. The pump of claim 3 , wherein the swivel mount has a key slot parallel to the drive shaft claim 3 , and the wobble plate key is a removable member that fits within the key slot.5. The pump of claim 4 , further comprising a retainer plate that contacts the wobble plate and the swivel mount.6. The pump of claim 1 , further comprising a bearing plate between the wobble plate and the fluid manifold claim 1 , the bearing plate having a bore for each displacement rod and a bearing disposed in each bore.7. The pump of claim ...

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Номер записи: 93
13-05-2021 дата публикации

VARIABLE DISPLACEMENT SWASH PLATE TYPE COMPRESSOR

Номер: US20210140419A1
Автор: SONG SE YOUNG
Принадлежит:

Variable displacement swash plate type compressor includes casing, rotating shaft, swash plate, piston, and inclination adjustment mechanism with first flow path connecting discharge chamber with crankcase and second flow path connecting crankcase with suction chamber to adjust inclination angle of the swash plate. An orifice hole decompressing fluid passing through the second flow path is formed in the second flow path. An orifice control mechanism controlling effective flow cross-sectional area of the orifice hole is formed on the second flow path. The orifice hole and control mechanism are formed to increase differential pressure in the crankcase and suction chamber, the effective flow cross-sectional area increases, and with further differential pressure increase it becomes a second area larger than zero and less than the first area. Achieved is rapid control of refrigerant discharge amount and prevention of reduction in compressor efficiency with reduction of time to switch to the maximum mode. 1. A variable displacement swash plate type compressor comprising:a casing having a bore, a suction chamber, a discharge chamber, and a crankcase;a rotating shaft which is supported rotatably on the casing;a swash plate which is rotated within the crankcase in conjunction with the rotating shaft;a piston which reciprocates within the bore in conjunction with the swash plate and forms, together with the bore, a compression chamber; andan inclination adjustment mechanism which has a first flow path which communicates the discharge chamber with the crankcase, and a second flow path which communicates the crankcase with the suction chamber, in order to adjust an inclination angle of the swash plate with respect to the rotating shaft is adjusted,wherein, in the second flow path, an orifice hole which decompresses a fluid passing through the second flow path, and an orifice control mechanism which controls an effective flow cross-sectional area of the orifice hole are formed, ...

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Номер записи: 94
05-05-2016 дата публикации

Variable displacement compressor with an oil check vlave

Номер: US20160123321A1
Автор: Matthew R. Warren
Принадлежит: MAHLE International GmbH

A variable displacement compressor includes a control valve and a check valve. The control valve is in fluidic communication with a discharge chamber of the compressor and a crankcase of the compressor. The check valve is interposed between the control valve and the discharge chamber. The check valve is configured to allow flow from the discharge chamber to the control valve and to prevent flow from the control valve to the discharge chamber. The check valve includes a ball and a spring. The spring is configured to urge the ball toward a closed position. The spring is characterized by a rate of the spring and a free-length of the spring, and the rate and the free-length are selected to minimize de-stroke noise caused by a rapid change of the compressor operation to a low displacement state.

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Номер записи: 95
04-05-2017 дата публикации

VARIABLE DISPLACEMENT SWASH PLATE COMPRESSOR

Номер: US20170122300A1
Автор: KONO Masayuki, Sakamoto Katsumi, Teraya Takanori, WATANABE Kazuto
Принадлежит: VALEO JAPAN CO., LTD.

To provide a piston compressor capable of preventing excessive oil from accumulating in a crank chamber in any operation state while securing the supply of oil to a swash plate. In a piston compressor in which an oil separation passage () is formed in a shaft () and a crank chamber () communicates with a suction chamber () through the oil separation passage (), a supply passage () opens at a region of a cylinder block () opposed to a swash plate () to thereby allow a working fluid introduced from a discharge chamber () into the crank chamber () to be supplied to the swash plate () and a bypass passage () allowing the crank chamber () to constantly communicate with the suction chamber () is provided to thereby prevent the accumulation of excessive oil in the crank chamber () regardless of the operation condition. The bypass passage () communicates with the crank chamber () at a region positioned in the outer side of a rotation trajectory of the swash plate () in the radial direction. 1. A variable displacement swash plate compressor comprising:a cylinder block in which a plurality of cylinder bores are formed;a front housing assembled to a front side of the cylinder block to define a crank chamber;a rear housing attached to a rear side of the cylinder block, in which a suction chamber and a discharge chamber are formed;pistons arranged in respective cylinder bores of the cylinder block so as to reciprocate;a shaft supported by the front housing and the cylinder block so as to rotate freely;a swash plate rotating integrally with the shaft and attached to the shaft so that a tilt angle is variable; andshoes interposed between a peripheral edge portion of the swash plate and the pistons so as to slide, converting a rotating motion of the swash plate into a reciprocating motion of the pistons,wherein a supply passage allowing the discharge chamber to communicate with the crank chamber and a release passage allowing the crank chamber to communicate with the suction ...

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Номер записи: 96
25-04-2019 дата публикации

CONTROL VALVE FOR COMPRESSOR

Номер: US20190120220A1
Автор: CHU Henry C.
Принадлежит:

A compressor includes a cylinder housing having a number of pistons, a control chamber communicating with piston casings, a suction chamber and a discharge chamber communicating with the piston casings, a control valve includes a receptacle engaged in the cylinder housing, a valve member engaged in the receptacle for controlling the pressurized air to flow from the discharge chamber into the control chamber of the cylinder housing, and a valve element for controlling a bypass of the pressurized air through the receptacle. A bellow device is connected to actuate the sliding member internally, and a sliding member is slidably engaged in the control space of the receptacle, and to operate the valve element externally with a solenoid device. 1. A control valve for compressor , said compressor comprising:a cylinder housing including a number of piston casings provided in said cylinder housing,a plurality of pistons slidably received and engaged in said piston casings of said cylinder housing respectively,a swash plate rotatably received and engaged in said cylinder housing with a spindle and adjustable relative to said spindle, and engaged with said pistons for changing and determining a moving stroke of said pistons, anda control valve including a receptacle engaged in said cylinder housing, wherein:said control valve includes a valve member engaged in said receptacle for controlling the pressurized air to flow from said cylinder housing through said receptacle and into said cylinder housing, and a valve element for controlling a bypass of the pressurized air through said receptacle.2. The control valve for compressor as claimed in claim 1 , wherein said cylinder housing includes a control chamber formed therein and communicating with said piston casings of said cylinder housing claim 1 , a suction chamber and a discharge chamber formed in said cylinder housing and communicating with said piston casings claim 1 , and arranged for allowing an air to be drawn from said ...

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Номер записи: 97
14-05-2015 дата публикации

Variable Displacement Compressor

Номер: US20150132153A1
Автор: Terauchi Satoshi
Принадлежит: Sanden Corporation

This variable displacement compressor comprises: a housing; a piston; a drive shaft rotatably supported by the housing; a rotor that rotates in unison with the drive shaft; a swash plate that rotates in synchronism with the rotation of the rotor connected via a connecting means; a conversion mechanism that converts the rotation of the swash plate into a reciprocating motion of the piston; and a pressure control valve that is capable of controlling the internal pressure of a crank chamber. The variable displacement compressor is characterized in that: the connecting means directly or indirectly connects a first arm projecting from the rotor and a second arm projecting from the swash plate; and the drive shaft is eccentrically inserted into a through-hole that is perforated through the swash plate. With this configuration, it is possible to provide a variable displacement compressor in which the behavior of the swash plate can be stabilized with a simple structure and in which the swash plate can be inclined smoothly. 1. A variable displacement compressor comprising a housing having compartments of a discharge chamber; a suction chamber; a crank chamber and a cylinder bore , a piston provided in the cylinder bore , a drive shaft rotatably supported by the housing , a rotor to rotate integrally with the drive shaft , a swash plate to rotate in synchronism with the rotor connected through a connecting means , a conversion mechanism that converts a rotation of the swash plate into a reciprocating motion of the piston , and a pressure control valve that is capable of controlling an internal pressure of the crank chamber according to a valve opening , whereinwhen the valve opening is changed to change the internal pressure of the crank chamber, a discharge capacity for compressing and discharging a refrigerant sucked from the suction chamber into the cylinder bore is changed by changing a stroke of the piston through changing an inclination of the swash plate to the drive ...

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Номер записи: 98
10-05-2018 дата публикации

VARIABLE DISPLACEMENT TYPE SWASH PLATE COMPRESSOR

Номер: US20180128252A1
Автор: HIROTA Suguru, KAKEGAWA Shinichi, Kubo Hiroshi, SATAKE Noriaki, TARUTANI Tomoji, Yamamoto Kenji
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

A variable displacement swash plate type compressor includes a crank chamber, a suction chamber, a drive shaft, a swash plate, and a bleeding passage connecting the crank chamber and the suction chamber. The bleeding passage has an axial passage and first and second radial passages in the drive shaft. The second radial passage opens on an outer peripheral surface of the drive shaft at a position that is closer to the swash plate than the first radial passage. The first radial passage is in constant communication with the crank chamber. The drive shaft has a valve member that is movable in the axial direction with the swash plate. The second radial passage is connected to the crank chamber when the swash plate is at maximum or minimum inclination angles and disconnected from the crank chamber by the valve member when the swash plate is at an intermediate inclination angle. 1. A variable displacement swash plate type compressor comprising:a housing having a discharge chamber, a suction chamber, a crank chamber, and a cylinder bore;a drive shaft rotatably supported in the crank chamber;a swash plate disposed in the crank chamber and supported on the drive shaft for rotation with the drive shaft;a piston reciprocally movable in the cylinder bore with a stroke length depending on an inclination angle of the swash plate, the piston forming a compression chamber in the cylinder bore; anda control mechanism configured to change the inclination angle of the swash plate between a maximum inclination angle and a minimum inclination angle by a pressure within the crank chamber, the control mechanism having a feeding passage connecting the discharge chamber and the crank chamber, a bleeding passage connecting the crank chamber and the suction chamber, and a displacement control valve configured to adjust at least one of an opening degree of the feeding passage and the bleeding passage, wherein an axial passage formed in the drive shaft and extending in an axial direction of the ...

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Номер записи: 99
11-05-2017 дата публикации

SWASH PLATE AND METHOD OF MANUFACTURING SWASH PLATE

Номер: US20170130709A1
Автор: KANG Hee Sam
Принадлежит:

A swash plate includes 34.5 to 43.0 wt % of copper (Cu) and 0.5 to 2.8 wt % of silicon (Si), with a remainder of aluminum (Al) and other inevitable impurities. 1. A swash plate , comprising:34.5 to 43.0 wt % of copper (Cu) and 0.5 to 2.8 wt % of silicon (Si), with a remainder of aluminum (Al) and other inevitable impurities.2. The swash plate of claim 1 , wherein the swash plate includes a plurality of core pin holes claim 1 , the core pin holes being formed toward a center along an outer circumferential surface thereof.3. The swash plate of claim 2 , wherein the core pin holes comprise a diameter of ½ or less of a thickness of the swash plate.4. The swash plate of claim 1 , wherein the swash plate has a primary AlCu phase and an Al—AlCu lamella structure.5. The swash plate of claim 4 , wherein the swash plate has a primary AlCu phase fraction of 10 to 50 vol % and an elastic modulus of 120 GPa or more.6. The swash plate of claim 1 , wherein the swash plate has a tensile strength of 400 MPa or more and a castability evaluation factor (C) of 2.0 or more claim 1 , as defined by Equation 1 below:{'br': None, 'i': C', 'K', 'K', 'Q', 'F, 'Castability evaluation factor ()=liquidus temperature ()/{liquidus temperature ()−(quantity of heat ()×composition ())}\u2003\u2003Equation 17. A method of manufacturing a swash plate claim 1 , comprising:preparing an aluminum alloy melt comprising 34.5 to 43.0 wt % of copper (Cu) and 0.5 to 2.8 wt % of silicon (Si), with a remainder of aluminum (Al) and other inevitable impurities;casting the aluminum alloy melt using a mold having a plurality of core pins; andremoving the core pins from the mold and separating the swash plate from the mold.8. The method of claim 7 , wherein the casting is performed through gravity casting or centrifugal casting.9. The method of claim 7 , wherein the casting is performed at a temperature of 595 to 625° C.10. The method of claim 7 , wherein the core pins have a thickness of ½ or less of a thickness of ...

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Номер записи: 100