公开(公告)号：US20050100447A1

公开(公告)日：2005-05-12

申请号：US10705362

申请日：2003-11-11

Applicant: Mihir Desai ,  William Dalton

Inventor： Mihir Desai ,  William Dalton

IPC: F04B1/26 ,  F04B49/00 ,  F04B49/12 ,  F04C14/22 ,  F04C14/26

CPC classification number: F04C14/226 ,  F04B1/26 ,  F04B49/002 ,  F04B49/12 ,  F04B2201/1204 ,  F04B2201/1205 ,  F04B2201/1213 ,  F04C14/26 ,  F04C2270/20

Abstract: A flow control system for controlling a variable displacement pump including a metering valve in fluid communication with the pump for metering an output of the pump. A regulating valve receives a portion of the output of the pump as a bypass flow at a first pressure, wherein an output of the regulating valve is at an interim pressure. The interim pressure is substantially equal to an average of the first pressure and a low reference pressure. An actuator sets a displacement of the pump by acting on a piston connected to a cam ring of the pump. The actuator receives the interim pressure and, thereby, the output of the variable displacement pump is determined.

Abstract translation: 一种用于控制可变排量泵的流量控制系统，其包括与泵流体连通的计量阀，用于计量泵的输出。 调节阀在第一压力下接收作为旁通流的泵的一部分输出，其中调节阀的输出处于临时压力。 临时压力基本上等于第一压力和低参考压力的平均值。 致动器通过作用在连接到泵的凸轮环的活塞上来设定泵的位移。 致动器接收临时压力，从而确定可变排量泵的输出。

公开(公告)号：US3891354A

公开(公告)日：1975-06-24

申请号：US47839274

申请日：1974-06-11

Applicant: BOSCH GMBH ROBERT

Inventor： BOSCH PAUL

IPC: F04B1/26 ,  F04B49/00 ,  F04B49/06 ,  F04B49/08 ,  F04B49/10 ,  F04B49/12

CPC classification number: F04B49/128 ,  F04B49/007 ,  F04B49/06 ,  F04B49/08 ,  F04B49/103 ,  F04B2201/0805 ,  F04B2201/1213 ,  F04B2207/04

Abstract: A motor, such as an internal combustion engine or an electric motor, drives two or more pumps, which pump fluid through a discharge system, and a speed measuring device is provided for producing a signal when the speed of the motor is reduced due to the load on the motor reaching a predetermined high value, short of an overload. Two or more pump discharge regulators are provided, one for each pump, cooperating with the measuring device to reduce the output of at least one of the pumps in response to a signal to thereby prevent overloading of the engine or motor.

Abstract translation: 诸如内燃机或电动机的电动机驱动两个或更多个泵，其泵送流体通过排放系统，并且提供速度测量装置用于当电动机的速度由于 马达上的负载达到预定的高值，超载。 提供两个或更多个泵排出调节器，每个泵用于每个泵，与测量装置配合，以响应于信号减少至少一个泵的输出，从而防止发动机或电动机的过载。

公开(公告)号：US08235680B2

公开(公告)日：2012-08-07

申请号：US12226408

申请日：2006-04-20

Applicant: Vittorio Pecorari ,  Davide Pecorari ,  Gabriele Pecorari

Inventor： Vittorio Pecorari ,  Davide Pecorari ,  Gabriele Pecorari

IPC: F01B13/06

CPC classification number: F03C1/223 ,  F03C1/046 ,  F04B49/125 ,  F04B2201/0201 ,  F04B2201/1213

Abstract: A radial cylinder hydraulic motor having continuously variable displacement capabilities includes: oscillating hydraulic cylinders which are driven to oscillate through an eccentric crankpin formed on the motor shaft and carrying a radially movable ring adapted to be shifted along the radial direction of the crankpin by actuation of opposed counteracting hydraulic cylinders housed within the crankpin; a hydraulic control circuit for controlling and adjusting the positions of said counteracting hydraulic cylinders in a continuous manner; an electronic control circuit adapted to control the hydraulic control circuit and process signals from at least one position sensor arranged to detect the positions of said oscillating cylinders; a rotary joint for hydraulic conduits through which said counteracting hydraulic cylinders are controlled and adjusted.

Abstract translation: 具有连续可变位移能力的径向气缸液压马达包括：振荡液压缸，其被驱动以通过形成在马达轴上的偏心曲柄销摆动并且承载径向可移动的环，其适于沿着曲柄销的径向方向移动， 容纳在曲柄销内的反作用液压缸; 用于以连续的方式控制和调节所述抵消液压缸的位置的液压控制回路; 电子控制电路，其适于控制液压控制电路和处理来自布置成检测所述摆动气缸的位置的至少一个位置传感器的信号; 用于液压管道的旋转接头，通过该旋转接头控制和调节所述反作用液压缸。

公开(公告)号：US20090151551A1

公开(公告)日：2009-06-18

申请号：US12226408

申请日：2006-04-20

Applicant: Vittorio Pecorari ,  Davide Pecorari ,  Gabriele Pecorari

Inventor： Vittorio Pecorari ,  Davide Pecorari ,  Gabriele Pecorari

IPC: F01B13/06

CPC classification number: F03C1/223 ,  F03C1/046 ,  F04B49/125 ,  F04B2201/0201 ,  F04B2201/1213

Abstract: A radial cylinder hydraulic motor having continuously variable displacement capabilities comprises: oscillating hydraulic cylinders (1) which are driven to oscillate through an eccentric crankpin (2) formed on the motor shaft (3) and carrying a radially movable ring (14) adapted to be shifted along the radial direction of the crankpin by actuation of opposed counteracting hydraulic cylinders (5, 6, 7) housed within the crankpin; a hydraulic control circuit for controlling and adjusting the positions of said counteracting hydraulic cylinders in a continuous manner; an electronic control circuit adapted to control the hydraulic control circuit and process signals from at least one position sensor arranged to detect the positions of said oscillating cylinders; a rotary joint (8) for hydraulic conduits (9, 10) through which said counteracting hydraulic cylinders are controlled and adjusted; wherein the sensor (45) is an angular position sensor placed close to the oscillation axis (C) of at least one oscillating cylinder (1) to measure, based upon changes in the signal, an angular position currently entered by the cylinder liner during the swing.

Abstract translation: 具有连续可变位移能力的径向气缸液压马达包括：摆动液压缸（1），其被驱动以通过形成在马达轴（3）上的偏心曲柄销（2）摆动并承载可径向移动的环 通过驱动容纳在曲柄销内的相对的反作用液压缸（5,6,7），沿曲轴销的径向移动; 用于以连续的方式控制和调节所述抵消液压缸的位置的液压控制回路; 电子控制电路，其适于控制液压控制电路和处理来自布置成检测所述摆动气缸的位置的至少一个位置传感器的信号; 用于液压管道（9,10）的旋转接头（8），所述抵消液压缸通过所述旋转接头（8）被控制和调节; 其中所述传感器（45）是靠近至少一个摆动气缸（1）的摆动轴线（C）放置的角度位置传感器，以根据所述信号的变化来测量由所述气缸套当前进入的角度位置 摇摆。

公开(公告)号：US20180187664A1

公开(公告)日：2018-07-05

申请号：US15394123

申请日：2016-12-29

Applicant: Stuart H. Bassine

Inventor： Stuart H. Bassine

IPC: F04B27/02 ,  F04B27/073 ,  F04B39/00 ,  F16H21/20 ,  A61M16/10

CPC classification number: F04B27/02 ,  A61M16/10 ,  F04B9/045 ,  F04B27/005 ,  F04B27/0657 ,  F04B27/073 ,  F04B35/01 ,  F04B39/0022 ,  F04B53/144 ,  F04B2201/1213 ,  F16H21/20

Abstract: A pump or compressor includes a rotating shaft, and at least a first piston rod substantially perpendicular to the rotating shaft and connecting a first pair of pistons at opposite ends of the piston rod. The piston rod moves back and forth relative to the rotating shaft. The compressor additionally includes a circular eccentric, and a circular ring connected to the circular eccentric via a bearing. A drive pin engages the circular ring at a fixed position on the circular ring and engages the at least a first piston rod. When rotational motion of the shaft rotates either the first piston rod and first pair of pistons or the circular eccentric, the drive pin and the first piston rod move back and forth relative to the rotating shaft.

公开(公告)号：US20180112661A1

公开(公告)日：2018-04-26

申请号：US15568844

申请日：2016-04-19

Applicant: KYB Corporation

Inventor： Koichiro AKATSUKA ,  Tomoyuki FUJITA ,  Tomoyuki NAKAGAWA ,  Fumiyasu KATOU ,  Hiroki GOMI

IPC: F04C14/26 ,  F04C14/22 ,  F04C2/344

CPC classification number: F04C14/26 ,  F04B2201/1213 ,  F04C2/344 ,  F04C14/22 ,  F04C14/223 ,  F04C14/24 ,  F04C2210/206 ,  F04C2270/20 ,  F04C2270/215 ,  F04C2270/585

Abstract: A variable displacement vane pump includes: a control orifice that imparts resistance to a flow of working oil discharged from pump chambers; a flow-amount control valve that operates in accordance with an upstream-downstream differential pressure of the control orifice and controls a flow amount of the working oil discharged from the pump chambers; a variable control valve that is operated by the working oil that has passed through the control orifice and controls an amount of eccentricity of a cam ring with respect to a rotor by controlling a pressure difference between a first fluid pressure chamber and a second fluid pressure chamber; and a return passage that is connected to the flow-amount control valve and circulates a part of the working oil discharged from the pump chambers through a suction passage.

公开(公告)号：US5752427A

公开(公告)日：1998-05-19

申请号：US719576

申请日：1996-09-25

Applicant: Volkmar Leutner

Inventor： Volkmar Leutner

IPC: F04B49/06 ,  F04B1/04 ,  F04B1/047 ,  F04B1/053 ,  F04B1/07 ,  F04B49/12 ,  F04B1/06

CPC classification number: F04B1/07 ,  F04B49/128 ,  F04B2201/1213

Abstract: A hydrostatic radial piston machine 10 is proposed, whose adjustable reciprocating ring 18 has integrated means for detecting the eccentricity 20 between the reciprocating ring 18 and the rotor 14. In combination with the rotating rotor 14 and the binding of the sliding blocks 17 to this reciprocating ring 18, the eccentric location of the reciprocating ring 18 leads to a reciprocating motion of the work pistons 16 in a radial direction. Together with the kinematic conditions in the radial piston machine 10, this leads to a change in the spacing between two successive sliding blocks 17. This change in spacing varies in proportion to the eccentricity 20 of the reciprocating ring 18 and is therefore detected by a measuring instrument. To that end, this measuring instrument has a measured value pickup 27, which is integrated in the reciprocating ring 18 and outputs an increased voltage signal as long as sliding blocks 17, which act as measured value transducers, move past it. The signal course is delivered to an electronic evaluation unit 28 and used by it to determine eccentricity, rotor rpm, and other characteristic variables.

Abstract translation: PCT No.PCT / DE96 / 00313 Sec。 371日期1996年9月25日 102（e）1996年9月25日PCT PCT 1996年2月24日PCT公布。 公开号WO96 / 32589 日期1996年10月17日提出一种静压径向活塞机10，其可调节的往复运动环18具有用于检测往复运动环18和转子14之间的偏心度20的集成装置。结合旋转转子14和滑动 滑块17到该往复运动环18，往复运动环18的偏心位置导致工件活塞16沿径向的往复运动。 与径向活塞机10中的运动学条件一起，这导致两个连续的滑块17之间的间隔的变化。间隔的变化与往复运动环18的偏心度20成比例地变化，因此通过测量 仪器。 为此，该测量仪器具有测量值拾取器27，该测量值拾取器27集成在往复运动环18中并输出增加的电压信号，只要作为测量值换能器的滑块17移动通过它即可。 信号路线被传送到电子评估单元28并被它用于确定偏心率，转子转速和其他特征变量。

公开(公告)号：US3988892A

公开(公告)日：1976-11-02

申请号：US631516

申请日：1975-11-13

Applicant: Paul Bosch

Inventor： Paul Bosch

IPC: B62D11/18 ,  F04B49/06 ,  F04B49/12 ,  F16H61/42 ,  F16H61/425 ,  F16H61/46 ,  F16H61/47 ,  F15B13/09 ,  F16H39/46

CPC classification number: F16H61/47 ,  B62D11/183 ,  F04B49/06 ,  F04B49/128 ,  F16H61/425 ,  F16H61/46 ,  F04B2201/0805 ,  F04B2201/1213 ,  F04B2207/04

Abstract: Two adjustable-stroke pumps are driven off a common drive shaft and supply fluid to respective consumers via respective control valves settable by the user of the system. Each pump is provided with its own pressure regulator operative for regulating the output pressure of the respective pump by automatically adjusting the setting of the stroke-adjustment member of the pump. Transducers generate first signals indicative of the settings of the stroke adjustment members and second signals indicative of the settings of the control valves. A control arrangement maintains the settings of the volume-adjustment members in correspondence with the settings of the control valves by automatically altering the operation of the pressure regulators in response to discrepancies between the settings indicated by the first and second signals. An anti-overload arrangement responds to overloading of the common drive machine for the pumps by altering the operation of the regulators in a way decreasing the stroke of one or both pumps. However, even during the anti-overload stroke decrease, the relative settings of the plurality of stroke-adjustment members are maintained in correspondence with the relative settings of the plurality of control valves.

Abstract translation: 两个可调节行程泵从公共驱动轴驱动，并通过系统用户可设置的相应控制阀将流体供应给相应的使用者。 每个泵都设有自己的压力调节器，用于通过自动调节泵的行程调节件的设定来调节相应泵的输出压力。 传感器产生指示行程调节构件的设置的第一信号和指示控制阀的设置的第二信号。 控制装置通过响应于由第一和第二信号指示的设置之间的差异自动改变压力调节器的操作来保持与调节阀的设置相对应的音量调节构件的设置。 防过载装置通过以减少一个或两个泵的冲程的方式改变调节器的操作来响应泵的公共驱动机的过载。 然而，即使在防过载行程减小的情况下，也能够根据多个控制阀的相对设定来维持多个行程调整部件的相对设定。