公开(公告)号：US12092373B2

公开(公告)日：2024-09-17

申请号：US17284353

申请日：2019-10-11

Applicant: OFFICINE MARIO DORIN S.P.A.

Inventor： Mario Dorin ,  Mauro Dallai

IPC: F25B1/02 ,  F04B27/04 ,  F04B27/08 ,  F04B39/00 ,  F04B39/10 ,  F04B39/12 ,  F04B53/10

CPC classification number: F25B1/02 ,  F04B27/0839 ,  F04B39/0055 ,  F04B39/1066 ,  F04B39/1073 ,  F04B39/121 ,  F04B27/0451 ,  F04B39/1026 ,  F04B39/125 ,  F04B53/1035 ,  F04B53/104 ,  F25B2400/074 ,  F25B2400/075

Abstract: Reciprocating-type compressor for refrigeration and/or conditioning and/or heat pump systems, comprising—a casing in which there is defined at least one compression section comprising at least one cylinder and a corresponding compression piston, —a head provided on said casing, defining a delivery chamber immediately down-stream of said compression section, and adapted to receive the compressed fluid from said compression section, —an intake zone from where the fluid to be compressed in the at least one cylinder of said compression section is introduced, —a delivery tap at the operational outlet of said compression chamber, characterized in that it comprises a check valve placed between said operational outlet of said compression chamber and said delivery tap, adapted to prevent the return of fluid into the compression chamber from said delivery tap.

公开(公告)号：US11685232B2

公开(公告)日：2023-06-27

申请号：US16702991

申请日：2019-12-04

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Ji-Wan Son ,  Tae-Hun Jung

IPC: B60H1/00 ,  B60H1/32 ,  F04B27/08 ,  F04B37/10 ,  F04B27/22

CPC classification number: B60H1/00885 ,  B60H1/00735 ,  B60H1/3223 ,  F04B27/0865 ,  F04B27/22 ,  F04B37/10 ,  B60H2001/3238 ,  B60H2001/3255 ,  B60H2001/3266

Abstract: An electronic control valve for an HVAC system of a vehicle may include, in the electronic control valve configured to control the angle of a swash plate (angle with respect to the surface perpendicular to a rotation shaft of a compressor) in the compressor in an HVAC system, a solenoid, a plunger coupled to the solenoid member and configured to slid according to whether the solenoid is magnetized, a valve body formed integrally with the plunger, and configured to open or close a supply flow path through which a fluid flows into the compressor, a discharge flow path through which a fluid is discharged from the compressor, and a control flow path through a fluid flows to control the angle of the swash plate mounted inside the compressor, a diaphragm configured to operate the plunger by the pressure of refrigerant, and a return spring configured to return the plunger, and the solenoid is applied with power according to a vehicle target cooling load.

公开(公告)号：US11512684B2

公开(公告)日：2022-11-29

申请号：US16324798

申请日：2017-08-09

Applicant: LG Electronics Inc.

Inventor： Susok Lee ,  Jungsik Park

IPC: F04B27/08 ,  F04B35/04 ,  F04B39/12

Abstract: A linear compressor of the present invention comprises: a shell having a suction portion; a cylinder disposed in the shell and forming a compression space for a refrigerant; a piston arranged to axially reciprocate in the cylinder; and a spring device for inducing a resonant motion of the piston, wherein the spring device comprises a spring, a first supporter to which one side of the spring is connected and which moves together with the piston, and a second supporter to which the other side of the spring is connected, and each of the supporters has a coupling groove for fitting the spring therein.

公开(公告)号：US11293421B2

公开(公告)日：2022-04-05

申请号：US16327408

申请日：2018-04-10

Applicant: Hanon Systems

Inventor： Yeol Woo Sung ,  Young Seop Yoon

IPC: F04B39/00 ,  F04B27/08 ,  F16K47/02 ,  F04B25/04

Abstract: The present invention relates to an apparatus for reducing suction pulsation and a swash plate type compressor comprising same. The apparatus for reducing suction pulsation, which is installed in a swash plate type compressor and can reduce suction pulsation of a refrigerant, comprises: a case formed in a hollow container shape and having a suction port with an open upper side in the height direction and discharge openings formed by opened areas in the side wall thereof; a core portion formed inside the case, between the suction port and the discharge openings so as to be movable in the height direction; a lever having a vertical portion extending upwardly, along the side wall of the case, from one end of a horizontal portion disposed in the vicinity of the bottom wall of the case and coupled to the case such that the portion where the horizontal portion and the vertical portion meet is rotatable about a horizontal axis; and an elastic means interposed between the core portion and the horizontal portion of the lever.

公开(公告)号：US11221003B2

公开(公告)日：2022-01-11

申请号：US16613464

申请日：2018-05-28

Applicant: Hanon Systems

Inventor： Yeol Woo Sung ,  Se Young Song

IPC: F04B27/18 ,  F04B27/10 ,  F04B27/08

Abstract: A control valve and a variable capacity compressor having a control valve or a passage connecting the control valve and a crank chamber. A fixed orifice hole is variable which is possible by selectively opening and closing a plurality of holes depending on the operation of the compressor.

公开(公告)号：US20210356175A1

公开(公告)日：2021-11-18

申请号：US17284353

申请日：2019-10-11

Applicant: OFFICINE MARIO DORIN S.P.A.

Inventor： Mario DORIN ,  Mauro DALLAI

IPC: F25B1/02 ,  F04B27/08 ,  F04B39/12 ,  F04B39/00 ,  F04B39/10

Abstract: Reciprocating-type compressor for refrigeration and/or conditioning and/or heat pump systems, comprising—a casing in which there is defined at least one compression section comprising at least one cylinder and a corresponding compression piston, —a head provided on said casing, defining a delivery chamber immediately down-stream of said compression section, and adapted to receive the compressed fluid from said compression section, —an intake zone from where the fluid to be compressed in the at least one cylinder of said compression section is introduced, —a delivery tap at the operational outlet of said compression chamber, characterized in that it comprises a check valve placed between said operational outlet of said compression chamber and said delivery tap, adapted to prevent the return of fluid into the compression chamber from said delivery tap.

公开(公告)号：US10670074B2

公开(公告)日：2020-06-02

申请号：US15505884

申请日：2015-08-21

Applicant: NTN CORPORATION

Inventor： Takuya Ishii ,  Satoru Fukuzawa ,  Hirohisa Abe ,  Akihiro Oomori

IPC: F16C29/02 ,  F04B27/12 ,  F04B27/10 ,  B29C44/42 ,  B29C45/00 ,  B29C45/17 ,  B29C45/56 ,  F04B27/08 ,  F16C33/20 ,  B29K101/10

Abstract: The present invention provides a method for producing a durable 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 a start time of an operation of a swash plate compressor, can be restrained from deteriorating in its lubricating property due to generated frictional heat, and can be restrained from deteriorating in its strength at a production time and an injection molding die. A semispherical shoe (4), for a swash plate compressor, to be produced by the production method has a base material (5), consisting of a hard material, which has a hollow part along a central axis thereof and a resin layer, consisting of a resin composition, which is formed on a surface of a planar part, disposed on a periphery of the base member, which is to be subjected to sliding contact with the swash plate and on a surface of a spherical part, disposed on the periphery thereof, which is to be subjected to sliding contact with a piston. A resin-filled portion (8) where the resin composition is filled and an empty portion where the resin composition is not filled are formed in the hollow part of the base material. The resin-filled portion (8) and the resin layer are formed by injecting and filling the resin composition into a portion to be formed as the resin-filled portion (8) with the base material (5) being disposed inside a cavity (22) of the injection molding die.

公开(公告)号：US20200056612A1

公开(公告)日：2020-02-20

申请号：US16544170

申请日：2019-08-19

Applicant: LG ELECTRONICS INC.

Inventor： Seseok SEOL ,  Bumdong SA

IPC: F04C29/02 ,  F04C2/356 ,  F04C2/344 ,  F04B9/129 ,  F04B27/08

Abstract: A rotary compressor includes a cylinder, a drive unit, a piston, a vane, and an oil passage. The cylinder includes a suction chamber for suctioning fluid and a compression chamber for compressing fluid. The drive unit rotates a drive shaft by connecting to the cylinder. The piston oscillates in the cylinder by connecting to the drive shaft. The vane extends between the cylinder and the piston so as to separate the suction chamber from the compression chamber, and some parts of the length of the vane are inserted into a slide groove formed in the cylinder. One end of the vane is connected to the coupling groove formed in the piston. The oil passage is disposed between one end of the vane and the rolling piston so as to receive oil therethrough.

公开(公告)号：US10527029B2

公开(公告)日：2020-01-07

申请号：US14891383

申请日：2014-05-15

Applicant: HYDAC DRIVE CENTER GMBH

Inventor： Manuel Kronpass

IPC: F04B1/30 ,  F01B3/10 ,  F04B1/20 ,  F04B53/14 ,  F03C1/28 ,  F04B1/12 ,  F04B1/32 ,  F04B11/00 ,  F04B27/08 ,  F01B3/00 ,  F04B19/22 ,  F04B1/22

Abstract: An axial piston pump, particularly for hydraulic systems, includes a cylinder drum (1) rotationally driven about an axis (15) in a pump housing (7). Piston cylinder units are arranged in the drum in a circle at an offset. Pistons (21) are at least indirectly supported on a swashplate (3) by their actuation end (31) accessible outside the cylinder drum (1). Between the swept volumes (19) of the piston cylinder units and a stationary fluid inlet and stationary fluid outlet of the pump housing (7), a control device (23) is arranged that has fluid channels (25, 26) for the targeted transfer of fluid from the fluid inlet into the swept volumes (19) and from the swept volumes (19) to the fluid outlet. At least one pressure compensation channel (28, 30) is provided in the control device (23), between the fluid channels (25, 26), to build or release fluid pressure in the swept volumes (19) in a targeted manner.

公开(公告)号：US10519944B2

公开(公告)日：2019-12-31

申请号：US15532894

申请日：2015-12-01

Applicant: SANDEN HOLDINGS CORPORATION

Inventor： Yukihiko Taguchi

IPC: F04B27/18 ,  F04B27/10 ,  F04B39/08 ,  B60H1/32 ,  F04B27/08

Abstract: A variable displacement compressor which prevents leakage of a refrigerant flowing directly into a suction chamber without passing via a crank chamber at a time of a minimum discharge displacement operation, thus making it possible to prevent an increase of a minimum discharge displacement by increasing a refrigerant pressure in the crank chamber, and in addition, making it possible to prevent insufficient lubrication of sliding portions and the like in the crank chamber.