公开(公告)号：US20240175533A1

公开(公告)日：2024-05-30

申请号：US18280591

申请日：2022-03-01

Applicant: NHK SPRING Co., Ltd.

Inventor： Yoshio YAMADA ,  Norihiro TAJIMA ,  Shuji TAKAHASHI ,  Atsushi YONEOKA

IPC: F16L55/05

CPC classification number: F16L55/05

Abstract: A pulsation damping member includes a first metal plate and a second metal plate, a crest portion of the second metal plate enters inside a crest portion of the first metal plate, a valley portion of the first metal plate enters inside a valley portion of the second metal plate, a size in the axial direction of an outer end portion of an expansion/contraction space positioned on an outermost side in a radial direction and continuous with joint parts increases toward an inner side in the radial direction, and a first constricted portion having a smallest size in the axial direction in a portion of the expansion/contraction space positioned on an inner side with respect to the outer end portion in the radial direction is positioned on a radially outward side from a center portion between the central axis and the joint parts in the radial direction.

公开(公告)号：US11703146B2

公开(公告)日：2023-07-18

申请号：US16530802

申请日：2019-08-02

Applicant: EMERSON PROCESS MANAGEMENT (TIANJIN) VALVES CO., LTD.

Inventor： Zhimin Sun ,  Zhengyu Chen

IPC: F16K47/08 ,  F16L55/05 ,  F16L55/055 ,  F16L55/04

CPC classification number: F16K47/08 ,  F16L55/04 ,  F16L55/05 ,  F16L55/055 ,  Y10T137/86212 ,  Y10T137/86791

Abstract: Control valves and cages that are adapted to reduce flashing and cavitation. A cage for use with a control valve having an inlet, an outlet, and defining a flow passage between the inlet and the outlet. The cage includes a generally cylindrical body and having a central bore, an upper portion, and a lower portion and an inner wall, an outer wall, and an intermediate wall disposed between the inner wall and the outer wall. The inner wall includes an inlet opening and the outer wall including an outlet opening. The inner wall, the outer wall, and the intermediate wall cooperate to define a portion of the flow passage that extends from the inlet opening, through the cage along the inner wall, along the intermediate wall, past a terminal portion of the intermediate wall, along the outer wall, to the outlet opening.

公开(公告)号：US20180245582A1

公开(公告)日：2018-08-30

申请号：US15754375

申请日：2016-08-24

Applicant: Jae Gu YANG ,  Flowtech Co., Ltd. ,  Ji Suk YANG

Inventor： Jae Gu YANG ,  Ji Suk YANG ,  Jae Wook OH ,  Jai Youl YANG

IPC: F04B49/10 ,  F16L55/045 ,  F17D5/00 ,  F17D1/14

CPC classification number: F04B49/10 ,  E03B7/075 ,  E03B7/077 ,  E03B11/02 ,  E03B11/10 ,  F04B11/0025 ,  F04B11/0091 ,  F04B23/04 ,  F04F5/04 ,  F16L55/02718 ,  F16L55/045 ,  F16L55/05 ,  F17D1/14 ,  F17D5/00

Abstract: The present invention relates to a water piping system, and more particularly, to a water piping system configured to reduce slam and water hammer of a check valve through delay of backflow of fluid by ejecting water stored in a pressure tank to a fluid forward direction at a high pressure when a pump in the water pipe is suddenly stopped, and through inducement of complete closure of the check valve by reducing a pressure applied to the check valve.

公开(公告)号：US10012244B2

公开(公告)日：2018-07-03

申请号：US15610793

申请日：2017-06-01

Applicant: Dale Maney

Inventor： Dale Maney

IPC: F16L55/04 ,  F15B1/02 ,  F15B1/04

CPC classification number: F15B1/025 ,  F15B1/04 ,  F15B2201/205 ,  F15B2201/21 ,  F15B2201/31 ,  F15B2201/312 ,  F15B2201/3152 ,  F15B2211/85 ,  F16L55/05

Abstract: A hydraulic hose end expansion chamber preferably includes a tube, a first end plate, a second end plate, a threaded nipple, an o-ring and a drain screw. The threaded nipple is attached to the first end plate. The threaded nipple is threadably engaged with a threaded hole in a female hydraulic quick disconnect coupler. The first end plate is attached to a first end of the tube. A threaded hole is formed through the second end plate to threadably receive the drain screw. The o-ring is pushed on to the threaded shaft. The second end plate is attached to a second end of the tube. An L-shaped handle is preferably attached to the second end of the tube. A second embodiment of the hydraulic hose end expansion chamber includes a compression spring with a piston. A third embodiment of the hydraulic hose end expansion chamber includes a nitrogen filled bladder.

公开(公告)号：US20180094657A1

公开(公告)日：2018-04-05

申请号：US15556325

申请日：2016-02-19

Applicant: HYDAC TECHNOLOGY GMBH

Inventor： Herbert BALTES ,  Peter KLOFT ,  Robert Marinus BEHR ,  Frank THIELECKE ,  Arne WAITSCHAT

IPC: F15B21/00 ,  F16L55/027 ,  F16L55/04 ,  F16L55/05

CPC classification number: F15B21/008 ,  F15B21/00 ,  F16L55/027 ,  F16L55/02754 ,  F16L55/033 ,  F16L55/04 ,  F16L55/041 ,  F16L55/05

Abstract: A damping device, in particular for damping or avoiding pressure surges, such as pulses, in hydraulic supply circuits, preferably in the form of a silencer, having a damping housing which surrounds a damping chamber and has at least one fluid inlet (3) and at least one fluid outlet (5) and a fluid receiving chamber (7) which extends between the fluid inlet and the fluid outlet, wherein, during operation of the device, a fluid flow crosses the damping chamber in a throughflow direction (11), coming from the fluid inlet (3) in the direction of the fluid outlet (5), and wherein at least parts of the fluid receiving chamber (7) extend in at least one extent direction transversely with respect to the throughflow direction (11), is characterized in that the fluid receiving chamber immediately adjoins the fluid inlet (3) and the fluid outlet (5) and in that a guide element (51) is provided in the damping chamber, the fluid flow being able to flow against the guide element and the guide element changing the flow speed of the flow at least in sections.

公开(公告)号：US20180031165A1

公开(公告)日：2018-02-01

申请号：US15725498

申请日：2017-10-05

Applicant: Robert Bosch GmbH

Inventor： Paul C. Stavrou

IPC: F16L55/033 ,  F15B21/12 ,  F16L55/05 ,  F04B11/00 ,  F15B3/00

CPC classification number: F16L55/033 ,  F04B11/00 ,  F04B11/0058 ,  F15B3/00 ,  F15B21/12 ,  F16L55/0333 ,  F16L55/05

Abstract: A method is provided for actively compensating for pressure changes of a working fluid within a conduit. A first cavity is provided in fluid communication with the conduit. A second cavity is in fluid communication with a control fluid. A plunger is in communication with both the first cavity and the second cavity and is movable in response to pressure changes of the working fluid in the conduit. The plunger is re-centered. Re-centering the plunger includes the following steps. Position data representative of movement of the plunger is collected. The position data is analyzed with a control unit to determine an average position of the plunger which is offset relative to a center position. The average position of the plunger is compared, with a control unit, to the center position. A signal is relayed from the control unit to a control valve to urge the plunger toward the center position.

公开(公告)号：US09637100B2

公开(公告)日：2017-05-02

申请号：US14738289

申请日：2015-06-12

Applicant: Robert Bosch GmbH

Inventor： Juergen Reiner ,  Matthias Hurst ,  Guenther Schnalzger

IPC: B60T8/40 ,  B60T8/42 ,  B60T13/14 ,  B60T8/34 ,  F16L55/05

CPC classification number: B60T8/4068 ,  B60T8/341 ,  B60T8/368 ,  B60T8/42 ,  B60T13/148 ,  F16L55/05

Abstract: A hydraulic unit for a slip control system of a hydraulic vehicle brake system comprises a hydraulic block including a socket, a first port, a pressure change damper, and a second port. The socket has a base and defining a first interior. The first port is located at the base of the socket. The pressure change damper defines a second interior and is positioned in the socket in engagement with the first port. The first port is in fluidic communication with the second interior. The second port is in fluidic communication with the second interior via a portion of the first interior outside of the pressure change damper.

公开(公告)号：US20170057233A1

公开(公告)日：2017-03-02

申请号：US15248232

申请日：2016-08-26

Applicant: Roland DG Corporation

Inventor： Naoki UEDA

IPC: B41J2/175

CPC classification number: B41J2/175 ,  F16L55/05

Abstract: A damper device includes a hollow case main body provided with an opening, a pressure sensitive film attached to the case main body so as to cover the opening, demarcates a liquid storage chamber together with the case main body, and is flexibly deformable internally toward, or externally away from, the liquid storage chamber, an inlet that is in the case main body, is in communication with the liquid storage chamber, and allows the liquid to flow into the liquid storage chamber, an injection outlet that is in the case main body, is in communication with the liquid storage chamber, and allows the liquid to flow out toward the liquid injector, an elastic member coupled with the pressure sensitive film to flexibly deform the pressure sensitive film externally away from the liquid storage chamber, and a pressure receiving plate that is located between the pressure sensitive film and the elastic member and includes a discontinuously joined portion that is discontinuously joined with the pressure sensitive film.

Abstract translation: 阻尼器装置包括设置有开口的中空壳体主体，安装在壳体主体上以覆盖开口的压敏膜，与液体储存室一起划分为液体存储室，并且内部可挠曲地变形， 或外部远离液体存储室，位于壳体主体内的入口与液体储存室连通，并且允许液体流入液体储存室，在主要的情况下为喷射出口 与液体储存室连通，并允许液体朝向液体注射器流出，与压敏膜耦合的弹性部件使压力敏感膜从外部远离液体储存室挠曲变形，并且压力 所述接收板位于所述压敏膜和所述弹性构件之间，并且包括不连续地接合所述pr 精华敏感膜。

公开(公告)号：US20150308602A1

公开(公告)日：2015-10-29

申请号：US14625663

申请日：2015-02-19

Applicant: Hydac Technology GmbH ,  Airbus Operations GmbH

Inventor： Peter Kloft ,  Robert Marinus Behr ,  Arne Waitschat ,  Frank Thielecke

IPC: F16L55/05

CPC classification number: F16L55/05 ,  F04B11/0091

Abstract: A damping device, in particular, for damping or preventing pressure shocks, such as pulsations, in hydraulic supply circuits, preferably in the form of a silencer, having a damping housing (1) surrounding a damping chamber (19), which includes at least one fluid inlet (11) and at least one fluid outlet (13), as well as a fluid receiving chamber (19) extending between the fluid inlet and fluid outlet, wherein, during operation of the device, a fluid flow coming from the fluid inlet (11) in a through-flow direction (15) traverses the damping chamber (19) in the direction of the fluid outlet (13), and wherein at least parts of the fluid receiving chamber (19) extend in at least one direction of extension transverse to the through-flow direction (15), is characterized in that the fluid receiving chamber (19) is located directly adjacent to the fluid inlet (11) and the fluid outlet (13).

Abstract translation: 阻尼装置，特别是用于阻尼或防止液压供应回路中的压力冲击，优选为消音器形式的压力冲击，其具有围绕阻尼室（19）的阻尼壳体（1），其至少包括 一个流体入口（11）和至少一个流体出口（13）以及在流体入口和流体出口之间延伸的流体接收室（19），其中在装置运行期间来自流体的流体流 沿流动方向（15）的入口（11）在流体出口（13）的方向上穿过阻尼室（19），并且其中流体接收室（19）的至少一部分在至少一个方向上延伸 横向于贯流方向（15）的延伸部的特征在于，流体接收室（19）直接邻近流体入口（11）和流体出口（13）定位。

公开(公告)号：US08991417B2

公开(公告)日：2015-03-31

申请号：US13640646

申请日：2011-06-09

Applicant: Jae Gu Yang ,  Ji Suk Yang ,  Sang Ki Oh

Inventor： Jae Gu Yang ,  Ji Suk Yang ,  Sang Ki Oh

IPC: F16K24/04 ,  F16L55/05 ,  G05D16/20 ,  F24D3/10 ,  F24D19/10 ,  F24D10/00

CPC classification number: F16L55/05 ,  F24D3/1033 ,  F24D10/00 ,  F24D19/1036 ,  G05D16/204 ,  Y02E20/14 ,  Y10T137/0396 ,  Y10T137/3124 ,  Y10T137/3127

Abstract: The present invention relates to a method of controlling pressure maintenance equipment for a cooling and heating system. More particularly, the present invention relates to a method of operating and controlling, under optimum conditions, pressure maintenance equipment with multiple sensors so as to check for irregularities in the sensors which measure the same physical parameter. In the present invention, measurement values of two or more sensors are used to detect whether an abnormality has occurred in any sensor. If a sensor is determined to be abnormal, a measurement value of the abnormal sensor is excluded when determining a reference control value. Thereby, the pressure can be precisely and reliably controlled in response to actual conditions of the system.

Abstract translation: 本发明涉及一种控制冷却和加热系统的压力维持设备的方法。 更具体地，本发明涉及一种在最佳条件下操作和控制具有多个传感器的压力维持设备，以便检查测量相同物理参数的传感器中的不规则性的方法。 在本发明中，使用两个以上的传感器的测量值来检测是否在任何传感器中发生异常。 如果确定传感器异常，则在确定参考控制值时排除异常传感器的测量值。 因此，可以根据系统的实际情况精确可靠地控制压力。