公开(公告)号：US10539161B2

公开(公告)日：2020-01-21

申请号：US15769649

申请日：2016-10-14

申请人： EAGLE INDUSTRY CO., LTD.

发明人： Tatsuhiro Arikawa

IPC分类号： F16L55/04 ,  F15B1/10 ,  F16L55/053

摘要： An accumulator capable of suppressing collision of a metal bellows with a pressure vessel. A partition unit 300 includes: a tubular metal bellows 310, one end of which is side fixed to a pressure vessel 200 and which expands and contracts according to pressure in a fluid chamber and pressure in a gas chamber; and a bellows cap 320 which is fixed to another end side of the metal bellows 310, the partition unit 300 further including: a seal member 330 which is provided between the bellows cap 320 and a port 221 and seals a working fluid on the side of the fluid chamber via the metal bellows 310 when the metal bellows 310 contracts; and a sliding unit 350 which is fixed to the bellows cap 320 and slides in an expansion/contraction direction of the metal bellows 310 relative to a stay 400.

公开(公告)号：US10421444B2

公开(公告)日：2019-09-24

申请号：US15407206

申请日：2017-01-16

申请人： MANDO CORPORATION

发明人： I-Jin Yang ,  Young-Chae Her

IPC分类号： B60T13/16 ,  B60T17/00 ,  F15B1/02 ,  B60T8/40 ,  F15B21/00 ,  F16L55/04 ,  B60T8/36 ,  B60T8/48

摘要： Disclosed is a brake system. The brake system includes a pulsation attenuation device configured to attenuate pressure pulsation of brake oil discharged from a pump, wherein the pulsation attenuation device includes a first damping device, wherein the first damping device includes: a first damping member inserted into a first bore in communication with an in-port through which brake oil is introduced and an out-port through which brake oil is discharged and having a hollow formed therein; a second damping member inserted into the hollow to form a damping space between the second damping member and an inner circumferential surface of the first damping member; and a sealing member coupled to the first damping member and configured to seal the first bore, wherein the damping space is formed by a plurality of grooves formed in the hollow.

公开(公告)号：US10400800B2

公开(公告)日：2019-09-03

申请号：US15556030

申请日：2016-02-19

申请人： HYDAC TECHNOLOGY GMBH ,  AIRBUS OPERATIONS GMBH

发明人： Herbert Baltes ,  Peter Kloft ,  Robert Marinus Behr ,  Frank Thielecke ,  Arne Waitschat

IPC分类号： F16L55/04 ,  F15B21/00 ,  F16L55/027 ,  F16L55/05 ,  F16L55/033

摘要： A damping device for damping or avoiding pressure surges, such as pulses, in hydraulic supply circuits has a damping housing (1) surrounding a damping chamber and having a fluid inlet (35) and a fluid outlet (41). A fluid receiving chamber extends between the fluid inlet (35) and the fluid outlet (41). During operation of the device, a fluid flow crosses the damping chamber in a throughflow direction (11), from the fluid inlet (35) to the fluid outlet (41). Parts of the fluid receiving chamber extend transversely with respect to the throughflow direction (11). More than one fluid receiving chamber is arranged one after the other in the throughflow direction (11). The fluid receiving chamber that is first upstream and the fluid receiving chamber that is last downstream immediately adjoin the fluid inlet (35) and the fluid outlet (41), respectively.

公开(公告)号：US20190257462A1

公开(公告)日：2019-08-22

申请号：US16404248

申请日：2019-05-06

申请人： Performance Pulsation Control, Inc.

发明人： John Thomas Rogers

IPC分类号： F16L55/04 ,  E21B21/01

摘要： A fluid delivery system including at least a housing for a charge-free pulsation dampener of a type utilizing elastomeric compression material, but without the compression material therein, includes a system pulsation dampener. The fluid delivery system includes a fluid reservoir, a fluid pump, a manifold, a pulsation dampener, and piping. The fluid reservoir stores a fluid used for a drilling procedure. The fluid pump pumps the fluid from the fluid reservoir through the fluid delivery system. The manifold is located downstream from the fluid pump, and receives and combines fluids from the at least one fluid pump. The pulsation dampener receives the combined fluid from the manifold, and dampens residual pulsations from the manifold. The piping receives fluid output from the pulsation dampener, and transfers the fluid received from the pulsation dampener further downstream.

公开(公告)号：US20190152455A1

公开(公告)日：2019-05-23

申请号：US16098188

申请日：2017-02-06

申请人： Hitachi Automotive Systems, Ltd.

发明人： Ryu KAI ,  Takahiro ITO ,  Shinji SETO ,  Atsushi YOKOYAMA ,  Satoru KURAGAKI ,  Toshihiro KOIZUMI

IPC分类号： B60T8/40 ,  F16J3/02 ,  F16L55/04

摘要： Provided is a novel pressure pulsation reducing device of a hydraulic system that reduces a stress generated in a metal diaphragm and is excellent in durability. A plurality of concentric recess portions projecting toward an interior space of a pulsation damping member is formed on one of metal diaphragms, and a plurality of concentric recess portions projecting toward the interior space of the pulsation damping member is formed on the other metal diaphragm likewise. When a predetermined pressure is applied to the metal diaphragms, at least one recess portion of one of the metal diaphragms and at least one recess portion of the other metal diaphragm are in contact with each other.

公开(公告)号：US20190143789A1

公开(公告)日：2019-05-16

申请号：US15813980

申请日：2017-11-15

申请人： FORD GLOBAL TECHNOLOGIES, LLC

发明人： Kevin James Brohl ,  Trent Greear Sutherland

IPC分类号： B60H1/00 ,  F25B41/04 ,  F16L55/04 ,  F16K47/02 ,  B60H1/32

摘要： A refrigerant hammer arrestor includes a housing having an internal compartment communicating with a refrigerant line, a piston received in the housing and dividing the internal compartment into a first chamber and a second chamber and a damping mechanism to dampen displacement of the piston within the housing. Various refrigerant loops are also described incorporating a refrigerant hammer arrestor.

公开(公告)号：US20190128295A1

公开(公告)日：2019-05-02

申请号：US15904167

申请日：2018-02-23

申请人： HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION

发明人： Yonghee Kim

IPC分类号： F15B21/00 ,  F16L55/04

摘要： Disclosed is a regulator for clutch operating mechanism. The regulator includes a main body, a supply flow path for fluid flow from a master cylinder to an operating cylinder, and a return flow for fluid flow from the operating cylinder to the master cylinder inside of the main body. The regulator further includes a first valve installed inside the main body and configured to close an exit of the return flow path and open the supply flow path when the fluid flows to the operating cylinder and a second valve installed inside the main body configured to close an exit of the supply flow path and to open the return flow path when the fluid flows to the master cylinder. The regulator further includes a damping apparatus having a damping space which communicates with the supply flow path of the main body and whose internal capacity changes according to hydraulic pressure.

公开(公告)号：US20190111359A1

公开(公告)日：2019-04-18

申请号：US15787069

申请日：2017-10-18

申请人： Ingersoll-Rand Company

发明人： HARDIK VINODBHAI GOHEL ,  P. PRABHU ,  MAHESH KUMAR.K.R ,  VISHAL UMASHANKER GUPTA ,  SHAMBHU M. VAGHANI

IPC分类号： B01D5/00 ,  F04B39/00 ,  F04C29/06 ,  F16L55/04

CPC分类号： B01D5/0003 ,  B01D5/0015 ,  F04B39/0055 ,  F04B39/0061 ,  F04B39/16 ,  F04B41/06 ,  F04C18/16 ,  F04C29/0035 ,  F04C29/0092 ,  F04C29/065 ,  F16L55/02718 ,  F16L55/02736 ,  F16L55/041

摘要： An aspect of the present disclosure includes a multi-stage compressor having a low pressure compressor stage and a high pressure compressor stage operable for compressing a working fluid. An integrated device including a heat exchanger directly connected to a combination unit is operable for reducing pressure pulsations, cooling and separating moisture in a first compressed flow stream and a second compressed flow stream discharged from the low pressure stage and the high pressure stage respectively. A first pressure pulsation dampener, a first moisture separator, a second pressure pulsation dampener and a second moisture separator are integrally formed within the combination unit.

公开(公告)号：US10247347B2

公开(公告)日：2019-04-02

申请号：US15911508

申请日：2018-03-05

申请人： AMTROL Licensing Inc.

发明人： Michael Cogliati ,  Christopher A. Van Haaren

IPC分类号： F16L55/04 ,  F16L55/053 ,  B32B27/08 ,  E03B7/07

摘要： An absorber for use in a fluid delivery system is disclosed which includes a housing defining an interior chamber, a connective fitting extending from the housing in fluid communication with the interior chamber for connecting the housing to the fluid delivery system, and at least one gas-filled bladder or cell disposed within the interior chamber of the housing to accommodate changes in fluid characteristics, such as, for example, pressure and volume, within the fluid delivery system, the gas-filled bladder or cell having a predetermined pre-charge pressure and a multi-layered flexible polymeric shell including a plurality of successive relatively thin polymeric shell layers to inhibit the formation of leak paths through the shell in the event that a single shell layer fails.

公开(公告)号：US20180328322A1

公开(公告)日：2018-11-15

申请号：US15915241

申请日：2018-03-08

申请人： DENSO CORPORATION

发明人： Daisuke KASHIWAGI ,  Hiroyuki SHIMAI

IPC分类号： F02M37/00 ,  F04B11/00 ,  F16L55/04

CPC分类号： F02M37/0041 ,  F04B11/0016 ,  F16L55/04

摘要： A pulsation damper includes: a case in which a fuel chamber is defined; and a damper unit arranged in the fuel chamber to attenuate pressure pulsation of fuel. The damper unit has a diaphragm that is elastically deformed by receiving pressure of fuel, and a plate having a rigidity higher than that of the diaphragm. A gas chamber is defined between the diaphragm and the plate joined with each other.