公开(公告)号：EP2593679A2

公开(公告)日：2013-05-22

申请号：EP11730221.6

申请日：2011-07-02

Applicant: Robert Bosch GmbH

Inventor： ARNS, Stefan

IPC: F04B49/20

CPC classification number: F04B49/002 ,  F04B17/03 ,  F04B49/20 ,  F04B2201/1201 ,  F04B2201/1204 ,  F04B2201/12041 ,  F04B2201/1205 ,  F04B2201/12051 ,  F04B2203/0209 ,  F04B2205/03 ,  F04B2205/04 ,  F04B2205/05

Abstract: The invention relates to a hydraulic assembly comprising a variable electric motor and a hydrostatic variable displacement pump which can be coupled thereto and the pivoting angle of which can be adjusted by means of a hydromechanical adjustment device, the pivoting angle being detectible by means of a pivoting angle sensor and a working pressure of the variable displacement pump being detectible by means of a pressure sensor. A speed of the electric motor can be varied depending on the pivoting angle sensor and the pressure sensor.

公开(公告)号：EP1436507B1

公开(公告)日：2008-09-03

申请号：EP02772362.6

申请日：2002-10-04

Applicant: Putzmeister Concrete Pumps GmbH

Inventor： BENCKERT, Hartmut ,  VON BÄUMEN, Paul ,  PETZOLD, Wolf-Michael

IPC: F04B49/06 ,  F04B15/02

CPC classification number: F04B49/065 ,  F04B15/02 ,  F04B2201/1204 ,  F04B2201/1205 ,  F04B2203/0209 ,  F04B2203/0605 ,  Y10S417/90

公开(公告)号：EP1436507A1

公开(公告)日：2004-07-14

申请号：EP02772362.6

申请日：2002-10-04

Applicant: PUTZMEISTER AKTIENGESELLSCHAFT

Inventor： BENCKERT, Hartmut ,  VON BÄUMEN, Paul ,  PETZOLD, Wolf-Michael

IPC: F04B49/06 ,  F04B15/02

CPC classification number: F04B49/065 ,  F04B15/02 ,  F04B2201/1204 ,  F04B2201/1205 ,  F04B2203/0209 ,  F04B2203/0605 ,  Y10S417/90

Abstract: The invention relates to a thick matter pump comprising a transport capacity control system. Said thick matter pump comprises a driving motor (50) which is preferably embodied as an internal combustion engine, a hydraulic pump (6) which is preferably embodied as a reversible pump, has a variable displacement volume (V) and can be coupled to the driving motor, and two hydraulic cylinders (5, 5') which are connected to the hydraulic pump (6), can be controlled by the same in a push-pull manner, and are each coupled to a transport cylinder (7, 7') for transporting the thick matter. A regulator for regulating the rotational speed (N) is associated with the driving motor (50), and a regulating element (18, 20) for regulating the displacement volume (V) is associated with the hydraulic pump (6). A control unit (54) is also provided for regulating the rotational speed (N) of the motor and the displacement volume (V). According to the invention, said control unit (54) comprises a regulating body (56) for regulating the thick matter transport capacity (F) of the transport cylinders (7, 7'), and an electronic control system (108) which reacts to the position of the regulating body (56) and allocates a nominal value to the rotational speed regulator and to the displacement volume actuator (20), in a software-assisted manner. These measures enable the operational comfort of the thick matter pump to be improved, and the fuel requirements, noise emission and waste gas emission to be reduced during practical use.

公开(公告)号：EP0924427B1

公开(公告)日：2003-07-02

申请号：EP98121603.9

申请日：1998-11-12

Applicant: BRUENINGHAUS HYDROMATIK GMBH

Inventor： Dittmann, Dieter

IPC: F04B49/08

CPC classification number: F04B49/08 ,  F04B2201/1203 ,  F04B2201/1204 ,  F04B2205/08

公开(公告)号：EP0761966B1

公开(公告)日：2001-05-16

申请号：EP96111778.5

申请日：1996-07-22

Applicant: CATERPILLAR INC.

Inventor： Childress, Dale B. ,  Manring, Noah D.

IPC: F04B49/08

CPC classification number: F04B49/08 ,  F04B2201/1202 ,  F04B2201/1204

公开(公告)号：EP0924427A1

公开(公告)日：1999-06-23

申请号：EP98121603.9

申请日：1998-11-12

Applicant: BRUENINGHAUS HYDROMATIK GMBH

Inventor： Dittmann, Dieter

IPC: F04B49/08

CPC classification number: F04B49/08 ,  F04B2201/1203 ,  F04B2201/1204 ,  F04B2205/08

Abstract: Eine Leistungsregeleinrichtung (1) zum Begrenzen der Leistung zumindest einer an der Leistungsregeleinrichtung (1) angeschlossenen, mittels einer Verstellvorrichtung (51-54) verstellbaren und in einer Arbeitsleitung (3) fördernden Hydropumpe (4) weist einen Hyperbelregler auf. Der Hyperbelregler wirkt über einen Schwenkhebel (31) auf ein Proportionalventil (9) zurück. Ein Angriffselement (35) ist auf dem Schwenkhebel (31) so verschiebbar, daß der Hebelarm, mit welchem das Angriffselement (35) an dem Schwenkhebel (31) angreift, veränderbar ist.
Erfindungsgemäß ist die Leistungsregeleinrichtung (1) als von der Verstellvorrichtung (51-54) baulich getrennte Ventileinheit ausgebildet. Das Angriffselement (35) wird von einem bewegbaren Drossel-Ventilkörper (10) eines in der Arbeitsleitung (3) angeordneten Drosselventils (8) mitgeführt. Die Stellung des Drossel-Ventilkörpers (10) wird von einem Differenzdruck gesteuert, der die Differenz zwischen dem in der Arbeitsleitung (3) herrschenden Arbeitsdruck der Hydropumpe (4) und einem Steuerdruck ist, der durch das Proportionalventil (9) in Abhängigkeit von der durch den Schwenkhebel (31) vermittelten Rückwirkung geregelt wird.

Abstract translation: 功率调节器（1）形成为与排量装置（1-54）结构地分离的阀单元。 在旋转杆上移动的接合构件（35）由安装在工作管（3）中的节流阀（8）的可动节流阀体（10）夹带。 阀体的位置由作为工作管道中的水力泵的工作压力与通过比例阀（9）调节的控制压力之间的差的压差来控制，所述控制压力根据返回动作 由旋转杆决定。

公开(公告)号：EP0717817B1

公开(公告)日：1998-04-15

申请号：EP94926905.4

申请日：1994-08-29

Applicant: BRUENINGHAUS HYDROMATIK GMBH

Inventor： STANGL, Helmut ,  BEUTLER, Gerhard

IPC: F04B49/08

CPC classification number: F04B49/08 ,  F04B2201/1204 ,  F04B2205/08 ,  Y10T137/5109 ,  Y10T137/86614

Abstract: A standard hydraulic control valve block has a first control valve (2) and a second control valve (3) that co-operates with the first control valve and communicates therewith through hydraulic medium lines (28-31, 33). The second control valve (3) has a valve piston (5) controlled on the one hand by a hydraulic control pressure in a pressure chamber (25) and on the other hand by a spring pressure part (7). In order to simplify the construction and mounting of the control valve block without affecting its operation and using a remote controlled seat valve, an additional hydraulic medium line (36) is designed in the control valve block and the spring pressure part (7) of the second control valve (3) is replaced by an electrically controlled seat valve (60.1; 60.2). The seat valve (60.1; 60.2) has an electromechanical control part (66.1; 66.2) and at least two hydraulic connections (63.1; 64.1) that act as a valve inlet (63) and a valve outlet (64.1; 64.2). The valve piston (5) of the second control valve (3) is at rest so that one (64.1; 64.2) of both hydraulic connections (63, 64.1; 64.2) of the seat valve (60.1; 60.2) is at the same time connected to an available hydraulic connection (T) and the other hydraulic connection (63) is connected to the additional hydraulic medium line (36).

公开(公告)号：EP0761966A2

公开(公告)日：1997-03-12

申请号：EP96111778.5

申请日：1996-07-22

Applicant: CATERPILLAR INC.

Inventor： Childress, Dale B. ,  Manring, Noah D.

IPC: F04B49/08

CPC classification number: F04B49/08 ,  F04B2201/1202 ,  F04B2201/1204

Abstract: A pump displacement control (10) for a variable displacement pump (11) includes a torque control valve (26) disposed between a variable torque limiter (34) and a force applying device (60) disposed in axial alignment within a common bore (19). A sleeve (27) and a valve spool (29) are movable relative to each other to establish a first condition communicating discharge pressure into an actuator chamber (17) to move a swashplate (12) toward a minimum displacement position against the bias of a spring (16) or a second condition communicating the actuating chamber with an exhaust passage (23) to allow the spring to move the swashplate toward its maximum displacement position. A torque control piston (39) disposed between opposing springs (48,49) resiliently bias the valve spool in a direction to establish the second condition when control fluid is directed into a control chamber (46). Pump discharge pressure communicated into a pressure chamber (63) exerts a force against the valve spool proportional to the discharge pressure so that the valve spool moves in a second direction to establish the first condition when the control force exceeds the biasing force exerted by the torque limiter.

Abstract translation: 泵包括设置在可变扭矩限制器和在公共孔内轴向对准设置的施力装置之间的扭矩控制阀。 套管和阀芯可相对于彼此移动以建立将排放压力连通到致动器室中的第一状态，以克服弹簧的偏压将斜盘朝向最小位移位置移动，或者将致动腔与排气连通的第二状态 通道以允许弹簧将斜盘移向其最大位移位置。 设置在相对弹簧之间的扭矩控制活塞在控制流体被引导到控制室中时沿一个方向弹性地偏压阀芯以建立第二状态。 连通到压力室的泵排出压力与排出压力成比例地施加抵靠阀芯的力，使得阀芯在第二方向上移动，以在控制力超过扭矩限制器施加的偏压力时建立第一状态。

公开(公告)号：EP0156399A2

公开(公告)日：1985-10-02

申请号：EP85103852.1

申请日：1985-03-29

Applicant: KABUSHIKI KAISHA KOMATSU SEISAKUSHO

Inventor： Akiyama, Teruo ,  Sasaki, Katsuyuki ,  Saigo, Takaichi

IPC: F04B49/00 ,  F04B49/06

CPC classification number: F04B49/06 ,  F04B49/002 ,  F04B49/08 ,  F04B2201/1201 ,  F04B2201/1202 ,  F04B2201/1204

Abstract: In a fluid operated pump displacement control system wherein a self pressure is defined as a first control signal, an arbitrary switchable second control signal different from said first control signal is added to said first control signal, and a displacement is adapted to be switched to a displacement corresponding to a value of said second control signal as added to said first control signal.

Abstract translation: 在其中将自身压力定义为第一控制信号的流体动力泵位移控制系统中，与所述第一控制信号不同的任意可切换的第二控制信号被添加到所述第一控制信号，并且位移适于切换到 相应于所述第二控制信号的值与所述第一控制信号相加的位移。