公开(公告)号：GB2221500A

公开(公告)日：1990-02-07

申请号：GB8911477

申请日：1989-05-18

Applicant: BOSCH GMBH ROBERT

Inventor： GRUBER JUERGEN ,  ZIRPS WILHELM

IPC: F03C1/247 ,  F04B1/04 ,  F04B1/10 ,  F04B1/107 ,  F04B1/113

Abstract: A pump body (6) rotates about a control spigot (8) in a device having a radial piston arrangement, particularly a radial piston pump or motor. Radially movable pistons (9) are mounted in the pump body (6) and, together with the control spigot (8), enclose a feed chamber (11) for a medium. The feed chamber (11) is connectible in turn to a suction bore (12) and also to a pressure bore (13), both in the spigot (8). Furthermore, pressure zones (28, 29, etc.) are provided on the outer surface (27) of the control spigot (8) between the pump body (6) and the control spigot (8) and cause the pump body (6) to be carried predominantly by hydrostatic support forces. The pressure zones (28, 29, etc.) comprise intersecting passages (32) between which remain partial areas (33) of the outer surface (27). … …

公开(公告)号：FR2617108A1

公开(公告)日：1988-12-30

申请号：FR8806813

申请日：1988-05-20

Applicant: BOSCH GMBH ROBERT

Inventor： ZIRPS WILHELM

IPC: B60T11/16 ,  B60T8/44 ,  B60T11/232 ,  B60T15/38 ,  B60T11/20

公开(公告)号：DE3167960D1

公开(公告)日：1985-02-07

申请号：DE3167960

申请日：1981-09-18

Applicant: BOSCH GMBH ROBERT

Inventor： HESSE HORST DR ING ,  ZIRPS WILHELM

IPC: F15B13/14

公开(公告)号：DE3309135A1

公开(公告)日：1984-09-20

申请号：DE3309135

申请日：1983-03-15

Applicant: BOSCH GMBH ROBERT

Inventor： ANTON ECKHARD ,  HESSE HORST DIPL ING DR ,  HOEFER FRIEDRICH WILHELM DIPL ,  SANDAU HARTMUT DIPL ING ,  ZIRPS WILHELM

IPC: B60T13/12 ,  B60T13/16 ,  F15B7/04 ,  B60T15/02

公开(公告)号：DE3119802A1

公开(公告)日：1982-12-09

申请号：DE3119802

申请日：1981-05-19

Applicant: BOSCH GMBH ROBERT

Inventor： ZIRPS WILHELM

IPC: B60T13/14 ,  F15B1/027 ,  F15B1/02

Abstract: The hydraulic control device serves to control the pressure medium, delivered by a pump (12), alternatively to an accumulator (35) or a consumer (114). Serving to control the pressure medium to the consumer is a flow-control valve (16) which only controls pressure medium to the consumer when the accumulator (35) is charged. Serving to control the flow-control valve is a pilot-control valve (41) which is additionally actuated via a control element (49) acted upon by the accumulator pressure, specifically when the accumulator is charged. Furthermore, a brake device (116) with a pressure-reducing valve (72, 85) is provided. The pressure-reducing valve (72, 85) controls hydraulic oil from the accumulator into the brake line when the brake is actuated. A control groove (115) on the control spool (16) of the flow-control valve ensures that no undesirable pressure can build up in the return space (19) of the flow-control valve due to leakage oil at the control spool, which would impair its function.

公开(公告)号：DE2932481A1

公开(公告)日：1981-03-26

申请号：DE2932481

申请日：1979-08-10

Applicant: BOSCH GMBH ROBERT

Inventor： ZIRPS WILHELM

IPC: F16K17/10 ,  F15B21/04 ,  F16K31/68 ,  G05D24/00 ,  G05D23/00 ,  F15B13/02 ,  F16N7/40 ,  F16N29/00 ,  G05D7/01

Abstract: The control valve for keeping a constant temperature or viscosity of a pressure medium in a hydraulic consumer circuit includes a main control valve provided with a control slider and a preliminary control valve in which a temperature sensitive control element is arranged in such a manner that upon reaching a predetermined temperature of the medium a bypass channel is established between the inlet and the outlet of the valve.

公开(公告)号：DE2932434A1

公开(公告)日：1981-02-26

申请号：DE2932434

申请日：1979-08-10

Applicant: BOSCH GMBH ROBERT

Inventor： ZIRPS WILHELM

IPC: F01M5/00 ,  F15B21/04 ,  F16N29/02 ,  G05D24/00 ,  G05D23/00

Abstract: The valve for a pressure-medium-operated hydraulic arrangement has a housing provided with an inlet and an outlet, a slide piston located downstream of the inlet and seal-tightly movable in an opening of the housing under the action of the pressure medium entering the same so as to subdivide the pressure medium into a first stream flowing directly to the outlet and a second constant stream, a laminar throttle member located downstream of the slide piston and associated with a spring-biased control member wherein the laminar throttle member and the control member are arranged so that the constant stream flows through the laminar throttle member and generates pressure drop which acts upon the control member against its bias, and the control member subdivides the constant stream into two partial streams which flow to the outlet means and one of which is throttled, whereby the pressure drop between the inlet and the outlet is maintained at a constant level and thereby the viscosity of the pressure medium is maintained constant.

公开(公告)号：DE2906670A1

公开(公告)日：1980-09-04

申请号：DE2906670

申请日：1979-02-21

Applicant: BOSCH GMBH ROBERT

Inventor： ZIRPS WILHELM

IPC: F15B13/04

Abstract: The valve provides load-compensated control of a hydraulic unit, having a control slide working in a housing and forming adjustable throttle openings. In the middle position this shuts off a union leading to the unit and in the end positions connects it to a supply or return union. Valves keep the pressure difference at the slide throttle opening constant independent of the pressure at the union to the unit resulting from a load on the latter, so that the value of the current flowing to this unionis dependent on the slide position. Second valves in the path from the unit union via the throttle opening to the return union likewise keep the pressure difference constant, and there is a control union in the housing. Both the valves have a common throttle member in the connecting passage between control slide and unit union.

公开(公告)号：DE2461896A1

公开(公告)日：1976-07-08

申请号：DE2461896

申请日：1974-12-31

Applicant: BOSCH GMBH ROBERT

Inventor： ZIRPS WILHELM

IPC: B64C13/40 ,  F15B13/02

公开(公告)号：DE2254032A1

公开(公告)日：1974-05-16

申请号：DE2254032

申请日：1972-11-04

Applicant: BOSCH GMBH ROBERT

Inventor： ZIRPS WILHELM

IPC: F15B1/08 ,  F15B1/18 ,  F16L55/053 ,  F24D3/10 ,  F15B1/04

Abstract: A hydraulic conduit and a pressure vessel having an interior chamber provided with an opening cooperate with one another. A flexible partition subdivides the chamber into a first compartment which communicates with the opening, and a second compartment which contains a body of compressed gas which normally flexes the partition wall into the first compartment and against the opening. Connecting passages are provided which so connect the hydraulic conduit with the opening that hydraulic fluid flowing in the conduit is conducted in its entirety through the first compartment at least at such times as the flexible partition is out of contact with the opening.