公开(公告)号：US3527547A

公开(公告)日：1970-09-08

申请号：US3527547D

申请日：1968-03-13

Applicant: REXROTH GMBH G L

Inventor： DIETER WERNER H ,  KRAMER HORST

IPC: F04B1/04 ,  F04B1/053 ,  F04B23/10 ,  F04B53/10 ,  F04B21/02 ,  F04B23/04

CPC classification number: F04B1/0443 ,  F04B1/053 ,  F04B23/103 ,  F04B53/1002 ,  F04B53/102

公开(公告)号：US3891145A

公开(公告)日：1975-06-24

申请号：US38271173

申请日：1973-07-26

Applicant: REXROTH GMBH G L

Inventor： BARTHOLOMAUS REINER ,  BERND HUBERT ,  LIEDHEGENER FRIEDEL

IPC: F15B13/042 ,  B23Q35/18 ,  F15B9/10 ,  F15B13/04

CPC classification number: F15B13/0402 ,  F15B9/10 ,  Y10T137/86582

Abstract: A tracking valve which can be mounted on a tool-supporting carriage in a machine tool and whose main valve member is a spool which is movable axially in a valve body to thereby start a hydraulic motor for the carriage so that the motor can move the carriage relative to a template while simultaneously moving one or more tools relative to a workpiece. The spool has a relatively large surface at one end, a relatively small surface at the other end, and an axial bore for a pilot valve member which is mechanically connected with a follower for the template and is movable by the follower to thereby regulate the pressure of a fluid acting against the larger surface of the spool. The smaller surface of the spool is subjected to a constant fluid pressure and such constant pressure can be assisted by the bias of a spring. The spool has lands which control the flow of fluid to and from the motor by way of ports machined into the housing of the tracking valve and the pilot valve member has two fluid flow regulating surfaces which flank an annular control chamber communicating with a compartment provided in the housing adjacent to the larger surface of the spool. When the pilot valve member is moved axially, either by the follower or by a resetting linkage which can be moved by an indexible cam drum, the fluid flow regulating surfaces change the pressure of fluid in the compartment and thus effect an axial movement of the spool relative to the housing.

Abstract translation: 一种跟踪阀，其可以安装在机床中的工具支撑托架上，并且其主阀构件是可在阀体中轴向移动的线轴，从而启动用于托架的液压马达，使得马达能够移动托架 相对于模板，同时相对于工件移动一个或多个工具。 阀芯在一端具有相对大的表面，在另一端具有相对较小的表面，以及用于先导阀构件的轴向孔，其与用于模板的随动件机械连接并且可由从动件移动，从而调节压力 流体作用在阀芯较大的表面上。 阀芯的较小表面经受恒定的流体压力，并且这种恒定压力可以通过弹簧的偏压来辅助。 阀芯具有通过加工到跟踪阀的壳体中的端口控制流体流过电动机的流动的平台，并且先导阀构件具有两个流体流动调节表面，该流体流动调节表面位于与设置在 壳体靠近阀芯的较大表面。 当先导阀构件轴向移动时，无论是通过从动件还是通过可由可转位凸轮鼓移动的复位联动件，流体流动调节表面改变隔室中的流体的压力，从而影响阀芯的轴向运动 相对于房屋。

公开(公告)号：US3872750A

公开(公告)日：1975-03-25

申请号：US35313673

申请日：1973-04-20

Applicant: REXROTH GMBH G L

Inventor： BERND HUBERT ,  LIEDHEGENER FRIEDEL

IPC: B23Q35/04 ,  B23Q35/06 ,  B23Q35/18 ,  B23B3/28

CPC classification number: B23Q35/06 ,  B23Q35/04 ,  B23Q35/18 ,  Y10T82/147 ,  Y10T409/30364

Abstract: A template has a contour which is to be copied, and a tracing device is movable relative to the template for tracing the contour thereof. The tracing device has a contact member which contacts the template and moves along the contour of the same, and this contact member has two or more contact faces of different diameters which can individually engage the template contour.

公开(公告)号：US3817153A

公开(公告)日：1974-06-18

申请号：US29269672

申请日：1972-09-27

Applicant: REXROTH GMBH G L

Inventor： ZUNZER E

IPC: F15B1/027 ,  F15B11/17 ,  F15B11/16 ,  F15B1/02

CPC classification number: F15B11/17 ,  F15B1/027 ,  F15B2211/20553 ,  F15B2211/20576 ,  F15B2211/25 ,  F15B2211/3116 ,  F15B2211/329 ,  F15B2211/6355 ,  F15B2211/67 ,  F15B2211/7142

Abstract: A plurality of valve units, each including a plurality of main valves connected in series in an idling conduit connecting the outlet of a control pump with a discharge space, is used for supplying hydraulic consumer motors with pressure fluid. Each main valve has an idling position for connecting the outlet of the pump with the discharge space through the idling conduit, and two operative positions for supplying and discharging fluid from the respective consumer motor, and for closing the idling circuit. Each main valve includes hydraulic operating means for shifting the main valve between idling and operative positions. A plurality of control valves supplies fluids to and discharge fluids from the hydraulic operating means, and a pressure control unit connects the idling conduit with the control valves. the pressure control unit includes a pressure reducing valve, a pressure fluid accumulator, a check valve between the accumulator and the pressure reducing valve so that a selected pressure is maintained in the hydraulic operating means when the respective main valve is in one of the operating positions. Preferably, a pressure limiting valve is arranged downstream of the pressure reducing valve, and has a higher pressure than the same. A pressurizing valve is provided between the idling conduit and the discharge space for maintaining a pressure in the idling conduit by which the operation of the operating means is started.

Abstract translation: 多个阀单元，其各自包括多个主阀，其串联连接在连接控制泵的出口和排出空间的空转导管中，用于向液压消费者电动机提供压力流体。 每个主阀具有怠速位置，用于通过怠速导管连接泵的出口和排出空间，以及用于从相应的消耗电动机供应和排出流体并且用于关闭怠速回路的两个操作位置。 每个主阀包括用于在空转和操作位置之间移动主阀的液压操作装置。 多个控制阀向液压操作装置供应流体并从液压操作装置排出流体，压力控制单元将空转导管与控制阀连接。 压力控制单元包括减压阀，压力流体蓄能器，蓄能器和减压阀之间的止回阀，使得当相应的主阀处于操作位置之一时，液压操作装置中保持选定的压力 。 优选地，压力限制阀布置在减压阀的下游，并且具有比其更高的压力。 在空转管道和排放空间之间设置有加压阀，用于维持起动操作装置的操作的空转管道中的压力。

公开(公告)号：US3810486A

公开(公告)日：1974-05-14

申请号：US32919073

申请日：1973-02-02

Applicant: REXROTH GMBH G L

Inventor： GUTEKUNST W

IPC: F16K27/00 ,  E03B9/02 ,  F16K35/06

CPC classification number: F16K27/00 ,  Y10T137/5109 ,  Y10T137/5468 ,  Y10T137/86759

Abstract: The novel valve can be used immersed in a liquid or it can be interposed in a conduit. It has a valve mechanism surrounded by a valve housing composed of an inner housing section and an outer housing section which surrounds the inner housing section. The inner housing section is used by itself in conjunction with the valve mechanism when the valve is installed immersed in a liquid, and when the valve is to be used interposed in a conduit both housing sections are employed.

Abstract translation: 新型阀可以浸入液体中，也可以插入导管中。 它具有由机壳包围的阀机构，所述阀壳体由内壳体部分和围绕内壳体部分的外壳体部分组成。 当阀安装浸入液体中时，内壳部分自身与阀机构一起使用，并且当阀被插入管道中时，采用两个壳体部分。

公开(公告)号：US3788774A

公开(公告)日：1974-01-29

申请号：US3788774D

申请日：1973-01-10

Applicant: REXROTH GMBH G L

Inventor： ROESSLEIN H

IPC: F04B49/00

CPC classification number: F04B49/002 ,  F04B2201/1203 ,  Y10T137/8659

Abstract: An adjustable main pump whose output volume is controlled by a servomotor operated by an auxilliary pump controlled by control valves, is provided with pressure regulating cylinder and piston means receiving fluid from the auxilliary pump and supplying fluid to the servomotor through the control valves. A pressure responsive piston is controlled by high pressure fluid from the outlet of the adjustable main pump, and acts on the regulating piston, forming a variable throttle therewith for controlling the flow from the regulating cylinder to a low pressure discharge conduit, or to the servomotor, depending on the pressure exerted by the pressure responsive piston on the regulating piston, so that the product of pump pressure and pumped volume, representing the power output of the main pump, remains constant during regulating movement of the pressure responsive piston.

Abstract translation: 输出容量由由控制阀控制的辅助泵操作的伺服电机控制的可调节主泵设置有压力调节缸和活塞装置，其从辅助泵接收流体并通过控制阀将流体供应到伺服电动机。 压力响应活塞由可调节主泵的出口的高压流体控制，作用在调节活塞上，形成可变的节流阀，用于控制从调节气缸到低压排放管道的流量，或伺服电动机 取决于压力响应活塞对调节活塞施加的压力，使得代表主泵的功率输出的泵压力和泵送体积的乘积在压力响应活塞的调节运动期间保持恒定。

公开(公告)号：US3766944A

公开(公告)日：1973-10-23

申请号：US29901872

申请日：1972-10-19

Applicant: REXROTH GMBH G L

Inventor： DISTLER J

IPC: F15B13/042 ,  F16K31/383 ,  F16K11/00

CPC classification number: F15B13/0422 ,  F16K31/383 ,  Y10T137/86582 ,  Y10T137/87072

Abstract: A fluid flow regulating valve wherein the housing receives a reciprocable spool and has a chamber which can receive pressurized fluid from a pump by way of a pilot valve to thereby move the spool from a neutral position to an intermediate position and thereupon to one of several operative positions. The fluid pressure in the chamber acts against one end face of a piston which is mounted in the body of the pilot valve and can be displaced by a control spring which can be deformed by a manually operated handle. A relatively minor deformation of the control spring suffices to move the spool to the intermediate position so that the spring can undergo a much larger additional deformation in order to move the spool to a selected operative position. A regulating spring in the housing of the regulating valve does not oppose the movement of the spool to intermediate position but the regulating spring offers a substantial resistance to movement of the spool to an operative position. This enables the operator to sense that the control spring offers a greatly increased resistance to further deformation by the handle.

Abstract translation: 一种流体流量调节阀，其中壳体容纳可往复运动的阀芯并且具有腔室，其可以通过先导阀从泵接收加压流体，从而将阀芯从中性位置移动到中间位置，并随后到达几个操作 职位 室内的流体压力作用在活塞的一个端面上，活塞的一个端面安装在先导阀的主体中，并且可以由可由手动操作的手柄变形的控制弹簧移位。 控制弹簧的相对较小的变形足以将线轴移动到中间位置，使得弹簧可以承受更大的附加变形，以便将线轴移动到选定的操作位置。 调节阀的壳体中的调节弹簧不与卷轴移动到中间位置，但是调节弹簧提供了相当大的阻力以使卷轴移动到操作位置。 这使得操作者能够感觉到控制弹簧提供了大大提高的由手柄进一步变形的阻力。

公开(公告)号：US3912421A

公开(公告)日：1975-10-14

申请号：US48050374

申请日：1974-06-18

Applicant: REXROTH GMBH G L

Inventor： GELIN ROBERT

IPC: F03C1/04 ,  F01B15/04 ,  F03C1/053 ,  F03C1/08 ,  F03C1/28 ,  F03C1/32 ,  F03C1/34 ,  F04B1/04 ,  F04B1/047 ,  F04B1/053 ,  F04B19/02

CPC classification number: F01B15/04 ,  F03C1/0415 ,  F03C1/0435

Abstract: A plurality of radially oriented pistons are each surrounded by a cylinder sleeve so as to be free to slide within the same. Each of the cylinder sleeves has a radially outer end which engages and surrounds a portion of a part-spherical surface of a stationary member. Inlet and outlet valves are provided in the stationary member on the respective portions of the partspherical surface which are surrounded by the radially outer ends of the cylinder sleeves.

公开(公告)号：US3905393A

公开(公告)日：1975-09-16

申请号：US41915673

申请日：1973-11-27

Applicant: REXROTH GMBH G L

Inventor： HARTWIG MANFRED

IPC: F15B13/043 ,  F16K11/087 ,  F16K11/20

CPC classification number: F15B13/043 ,  Y10S137/901 ,  Y10T137/87193

Abstract: A valve body has a valve chamber provided with a first and an opposite second port, and with a third port intermediate the first and the second ports. A first and a second valve seat are provided at the first and second port, respectively, and a third valve seat is provided intermediate the first and third ports. A valve member is movable in the valve chamber between a position in which it engages the first valve seat and disengages both the second and third valve seats, and another position in which it engages both the second and third valve seats and is disengaged from the first valve seat.

Abstract translation: 阀体具有设置有第一和相对的第二端口的阀室，并且在第一和第二端口之间具有第三端口。 第一和第二阀座分别设置在第一和第二端口处，并且第三阀座设置在第一和第三端口的中间。 阀构件可以在阀室中在其与第一阀座接合并且脱离第二阀座和第三阀座的位置之间移动，而另一位置与第二阀座和第三阀座接合并且与第一阀座脱离 阀座。

公开(公告)号：US3813194A

公开(公告)日：1974-05-28

申请号：US30363372

申请日：1972-11-03

Applicant: REXROTH GMBH G L

Inventor： SCHOLZ J

IPC: F04C2/344 ,  F01C21/08 ,  F03C2/30 ,  F01C21/00

CPC classification number: F01C21/0863

Abstract: The rotor of a vane pump or hydraulic motor, has vane slots in which the inner ends of vanes form bottom chambers, while the outer ends project from the rotor and form intervane space with the inner surface of a surrounding cam ring. Two throttles are mounted in the rotor on opposite sides of each vane slot and have inner ends communicating with the respective bottom chamber and outer ends communicating with two adjacent intervane chambers. When a vane passes through a flow reversing zone, different pressures prevail in the respective pair of leading and trailing intervane spaces so that fluid flows through the respective throttles and bottom chamber. In this manner, an intermediate gradually changing pressure acts in the respective bottom chamber to urge the vane outward to engage the cam ring.

Abstract translation: 叶片泵或液压马达的转子具有叶片槽，叶片的内端形成底室，而外端从转子突出，并与周围的凸轮环的内表面形成间隔空间。 两个节流阀安装在每个叶片槽的相对侧上的转子中，并且其内端与相应的底室连通，外端与两个相邻的间隔室连通。 当叶片通过流动反转区域时，在相应的一对前后间隔空间中存在不同的压力，使得流体流过相应的节流阀和底部腔室。 以这种方式，中间逐渐变化的压力作用在相应的底部室中，以将叶片向外推动以接合凸轮环。