Valve plate with a 3-way flow control valve

    公开(公告)号:DE3243179A1

    公开(公告)日:1984-05-24

    申请号:DE3243179

    申请日:1982-11-23

    Abstract: A valve plate (11) with a 3-way flow control valve (12) is proposed, on one flange face (13) of which electromagnetically actuated directional valves (15, 17) lying in a closed circuit and supplied with constant flow are mounted, while attached to the opposite second flange face (14) are the control valves (19, 22) allocated to the residual or total flow and lying in an open circuit. The slider (28) of the flow control valve (12) lies with a supply port (38) essentially in one plane (55). The return ports (34, 35, 59) in both flange faces (13, 14), a circulation port (45) as well as a 2/2 manipulating valve (32), which together with the slider (28) forms a reversing valve, lie essentially in a second plane (56) running parallel to the first plane (55), while the constant-flow port (42) lies in between. The valve plate (11) can therefore be used as a simple and compact adapter plate of inexpensive construction between different types of valve construction.

    33.
    发明专利
    未知

    公开(公告)号:DE2810375A1

    公开(公告)日:1979-09-20

    申请号:DE2810375

    申请日:1978-03-10

    Abstract: A control arrangement for a hydraulic force transmission, especially for a hydraulically operated lifting device on agricultural vehicles comprises, besides a main control slide, a pressure control slide and a blocking device, an auxiliary slide arranged in a bore of the pre-control slide. The hydraulic working fluid is fed from the main slide directly to the blocking device and a special arrangement of the auxiliary slide in the hydraulic control circuit permits a compact and simple construction of the control arrangement, while preventing tight throttling of the fluid in either direction of the flow.

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