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    51.
    发明专利
    未知

    公开(公告)号：DE3127729A1

    公开(公告)日：1983-02-03

    申请号：DE3127729

    申请日：1981-07-14

    Applicant: BOSCH GMBH ROBERT

    Inventor： SCHAUB UWE ,  WEIGLE DIETER DIPL ING ,  ZIRPS WILHELM

    IPC: F15B21/04 ,  F15B13/02

    Abstract: A pressure valve for heating a pressure medium and maintaining its temperature constant, has a control slider provided with a throttle, a pilot valve influencing a position of the control slider and having a spring-loaded valve member and a valve seat, a thermosensor arranged to sense the pressure medium and to determine throttling of the latter, wherein the thermosensor controls an electromagnet acting upon the pilot valve, and the spring of the pilot valve in the opened position of the valve member is at least partially pretensioned, and upon actuation of the electromagnet and assuming by the valve member the closed position the spring is tensioned to a value corresponding an opening pressure.

    52.
    发明专利
    未知

    公开(公告)号：FR2509806A1

    公开(公告)日：1983-01-21

    申请号：FR8211772

    申请日：1982-07-05

    Applicant: BOSCH GMBH ROBERT

    Inventor： SCHAUB UWE ,  WEIGLE DIETER ,  ZIRPS WILHELM

    IPC: F15B21/04 ,  F15B13/02

    Abstract: A pressure valve for heating a pressure medium and maintaining its temperature constant, has a control slider provided with a throttle, a pilot valve influencing a position of the control slider and having a spring-loaded valve member and a valve seat, a thermosensor arranged to sense the pressure medium and to determine throttling of the latter, wherein the thermosensor controls an electromagnet acting upon the pilot valve, and the spring of the pilot valve in the opened position of the valve member is at least partially pretensioned, and upon actuation of the electromagnet and assuming by the valve member the closed position the spring is tensioned to a value corresponding an opening pressure.

    57.
    发明专利
    未知

    公开(公告)号：DE2536484A1

    公开(公告)日：1977-02-24

    申请号：DE2536484

    申请日：1975-08-16

    Applicant: BOSCH GMBH ROBERT

    Inventor： ZIRPS WILHELM

    IPC: F15B1/18 ,  F16F9/34 ,  F16L55/052 ,  F16K31/122

    Abstract: A valve for controlling an opening for the passage of fluid into and out of a pressure accumulator has a valve member, which, by the elastically expanding membrane of the pressure accumulator, can be brought against the force of a spring to a closed position. An orifice plate located in the valve housing creates a pressure difference to opposite sides of the plate, and this pressure difference is directed to opposite sides of a piston operably connected to the valve member to thereby bias the latter to the open position during outflow of fluid from the pressure accumulator, to thus prevent a premature movement of the valve member to the closed position.

    Pressure limiting valve with cup shaped seal - is pressed against a wall containing a pressure medium inlet and outlet
    58.
    发明专利
    Pressure limiting valve with cup shaped seal - is pressed against a wall containing a pressure medium inlet and outlet 未知

    公开(公告)号：DE2522069A1

    公开(公告)日：1976-11-25

    申请号：DE2522069

    申请日：1975-05-17

    Applicant: BOSCH GMBH ROBERT

    Inventor： ZIRPS WILHELM ,  TRAUTEWEIN HERBERT

    IPC: F16K17/04 ,  F16K17/02

    Abstract: Pressure limiting valve has within a housing a cup-shaped seal (29) which is forced against a wall by the pressure of a compressible medium. The wall has a pressure medium inlet (21) and outlet (27) at an interval from one another which are located radially on the sealing side of the cup. Near to its closed end (34, 32) the sealing cup is in its cross-section the same thickness or thinner than the region between the inlet and outlet. The main cylindrical section (15) of the cup is connected to its base section via external chamfered edges (16). In operation the cup is held against the wall (28) by a compressed gas in the hollow chamber (35) so that it shuts off the connection between inlet and outlet. The valve is designed to withstand more effectively extreme operational conditions.

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