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1. 发明授权

US08734127B2 Hydraulic pump-motor and method of preventing pulsation of hydraulic pump-motor 有权
标题翻译：液压泵马达及其防止液压泵马达脉动的方法
公开(公告)号：US08734127B2
公开(公告)日：2014-05-27
申请号：US12733744
申请日：2008-09-09
申请人： Takeo Iida
发明人： Takeo Iida
IPC分类号： F04B1/12
CPC分类号： F04B1/188 , F04B1/22 , F04B49/22 , F04B2205/13
摘要： A pressure regulating restriction for allowing a cylinder bore and a valve plate discharge port to communicate with each other before the cylinder bore communicates with the valve plate discharge port, and an oil passage for allowing the valve plate discharge port and the cylinder bore to temporarily communicate with each other in a time period after the cylinder bore is freed from the communication with the valve plate suction port until the cylinder bore communicates with the pressure regulating restriction. The oil passage has length capable of transmitting high pressure in the oil passage on a side of the cylinder bore at the time of the communication and of restoring the pressure in the oil passage on the side of the cylinder bore to the pressure on a side of the valve plate discharge port before the communication with a next cylinder bore at the time of non-communication.
摘要翻译：在气缸孔与阀板排出口连通之前允许气缸孔和阀板排出口彼此连通的压力限制装置，以及允许阀板排出口和气缸孔暂时连通的油路在气缸孔与阀板吸入口的连通件脱开之后的一段时间内，直到气缸孔与调压限制连通。油路具有能够在连通时在油路的一侧在油路中传递高压的长度，并且将油路中的油通道中的压力恢复到缸侧的压力在不通信时与下一个气缸孔连通之前的阀板排出口。

2. 发明申请

US20040099247A1 Port plate for an axial piston pump 失效
公开(公告)号：US20040099247A1
公开(公告)日：2004-05-27
申请号：US10301919
申请日：2002-11-22
申请人： Caterpillar Inc.
发明人： Bryan E. Nelson
IPC分类号： F04B001/12
CPC分类号： F04B1/188 , F04B1/146
摘要： A pump includes a stationary pump housing having a housing chamber, a rotating pump shaft having a central longitudinal axis and extending through a proximal end of the pump housing into the housing chamber, and a rotating swash plate fixed to the pump shaft. The swash plate includes a pump inlet passage with an opening in a surface of the rotating swash plate. A plurality of reciprocating pump pistons are also included with the pump, each pump piston is at least partially contained within a respective pump chamber formed in the stationary pump housing and has an axial bore extending completely therethrough. The axial bore of each pump piston may selectively communicate with the swash plate surface opening to permit the supply of inlet fluid to the axial bore from the inlet passage. A sealing plate substantially seals the swash plate surface opening from a flow of fluid into the inlet passage from the swash plate surface opening.

3. 发明授权

US06799953B2 Port plate for an axial piston pump 失效
标题翻译：轴向活塞泵的端板
公开(公告)号：US06799953B2
公开(公告)日：2004-10-05
申请号：US10301919
申请日：2002-11-22
申请人： Bryan E. Nelson
发明人： Bryan E. Nelson
IPC分类号： F04B2708
CPC分类号： F04B1/188 , F04B1/146
摘要： A pump includes a stationary pump housing having a housing chamber, a rotating pump shaft having a central longitudinal axis and extending through a proximal end of the pump housing into the housing chamber, and a rotating swash plate fixed to the pump shaft. The swash plate includes a pump inlet passage with an opening in a surface of the rotating swash plate. A plurality of reciprocating pump pistons are also included with the pump, each pump piston is at least partially contained within a respective pump chamber formed in the stationary pump housing and has an axial bore extending completely therethrough. The axial bore of each pump piston may selectively communicate with the swash plate surface opening to permit the supply of inlet fluid to the axial bore from the inlet passage. A sealing plate substantially seals the swash plate surface opening from a flow of fluid into the inlet passage from the swash plate surface opening.
摘要翻译：泵包括具有容纳室的固定泵壳体，具有中心纵向轴线并且延伸穿过泵壳体的近端延伸到壳体室中的旋转泵轴以及固定到泵轴的旋转斜盘。斜盘包括在旋转斜盘的表面中具有开口的泵入口通道。多个往复泵活塞也包括在泵中，每个泵活塞至少部分地容纳在形成在固定泵壳体中的相应的泵室内，并且具有完全穿过其延伸的轴向孔。每个泵活塞的轴向孔可以选择性地与斜盘表面开口连通，以允许从入口通道向轴向孔提供入口流体。密封板将旋转斜盘表面开口基本上从旋转斜盘表面开口的入口通道中流入流体中。

4. 发明申请

US20100236398A1 HYDRAULIC PUMP-MOTOR AND METHOD OF PREVENTING PULSATION OF HYDRAULIC PUMP-MOTOR 有权
标题翻译：液压泵电机及其预防液压泵电动机的方法
公开(公告)号：US20100236398A1
公开(公告)日：2010-09-23
申请号：US12733744
申请日：2008-09-09
申请人： Takeo Iida
发明人： Takeo Iida
IPC分类号： F01B3/00
CPC分类号： F04B1/188 , F04B1/22 , F04B49/22 , F04B2205/13
摘要： A pressure regulating restriction for allowing a cylinder bore and a valve plate discharge port to communicate with each other immediately before the cylinder bore communicates with the valve plate discharge port, and an oil passage for allowing the valve plate discharge port and an inside of the cylinder bore to temporarily communicate with each other in a time period after the cylinder bore is freed from the communication with the valve plate suction port until the cylinder bore communicates with the pressure regulating restriction are provided. The oil passage has length capable of transmitting high pressure in the oil passage on a side of the cylinder bore at the time of the communication and of restoring the pressure in the oil passage on the side of the cylinder bore to the pressure on a side of the valve plate discharge port before the communication with a next cylinder bore at the time of non-communication.
摘要翻译：用于允许缸孔和阀板排出口在气缸孔与阀板排出口连通之前彼此连通的压力调节限制件，以及用于允许阀板排出口和气缸内部的油通道在气缸孔从与阀板吸入口的连通中脱离直到气缸孔与压力调节限制件连通之后的时间段内，提供相互临时连通的孔。油路具有能够在连通时在油路的一侧在油路中传递高压的长度，并且将油路中的油通道中的压力恢复到缸侧的压力在不通信时与下一个气缸孔连通之前的阀板排出口。

5. 发明申请

US20180045172A1 AXIAL PISTON MACHINE 审中-公开
公开(公告)号：US20180045172A1
公开(公告)日：2018-02-15
申请号：US15557117
申请日：2016-02-17
申请人： Mahle International GmbH
发明人： Michael Bucher , Christoph Fiala , Mirko Guenther , Michael Hoetger , Falk Schneider
IPC分类号： F03C1/32 , F16K3/08 , F16K3/02 , F01B3/00
CPC分类号： F03C1/0626 , F01B3/0002 , F01B3/0017 , F04B1/143 , F04B1/188 , F04B53/1087 , F16K3/0227 , F16K3/085
摘要： An axial piston machine may include a rotor with a shaft. A plurality of cylinders may be arranged in an annular manner about the shaft. A plurality of pistons may each be positioned within each of the plurality of cylinders and may be constructed and arranged to move translationally within the plurality of cylinders. A cylinder head may include a plurality of inlet openings and may be in operative communication with the plurality of cylinders. A sealing washer having a plurality of passage openings may be disposed on the cylinder head so that the plurality of passage openings and the plurality of inlet openings may be flush with one another. A number of the plurality of inlet openings may correspond to a number of the plurality of passage openings. A valve plate may be connected to the shaft in a rotationally fixed manner and may be constructed and arranged to be brought into congruence with the plurality of passage openings of the sealing washer based on a rotary angle. The sealing washer may be disposed between the plurality of inlet openings and the valve plate and may be prestressed against the cylinder head and onto the inlet openings.

6. 发明申请

US20170058876A1 Hydraulic Pump Port Plate with Variable Area Metering Notch 审中-公开
标题翻译：液压泵端口板带有可变面积计量槽口
公开(公告)号：US20170058876A1
公开(公告)日：2017-03-02
申请号：US14839128
申请日：2015-08-28
申请人： Caterpillar Inc.
发明人： Kevin J. Graf , Kaimei Sun , Hongliu Du
IPC分类号： F04B1/18 , F04B49/00 , F04B1/32
CPC分类号： F04B1/188 , F04B1/2021 , F04B1/2042 , F04B1/205 , F04B1/2057 , F04B1/303 , F04B1/32 , F04B1/324
摘要： A port plate for a swashplate type axial piston pump is described herein. The port plate includes an inlet port, a discharge port, and a first metering notch in fluidic communication via a first passage with a metering notch area adjustment valve configured to adjust the effective area of the metering notch. The first metering notch is disposed at a leading edge of one of the inlet port or the discharge port.
摘要翻译：本文描述了用于斜盘式轴向柱塞泵的端口板。端口板包括入口端口，排出口和经由第一通道流体连通的第一计量凹口，配置有调节计量凹口的有效面积的计量切口区域调节阀。第一计量槽口设置在入口或排出口之一的前缘。

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