公开(公告)号：US11442478B2

公开(公告)日：2022-09-13

申请号：US15579651

申请日：2016-06-02

Applicant: HYDAC FLUIDTECHNIK GMBH

Inventor： Frank Schulz ,  Michael Reik

IPC: F16K31/02 ,  G05D16/20 ,  G05B6/02 ,  G05B11/01

Abstract: A pressure control device has at least two switching valves (10, 12), a feedback control unit (14), a sensor unit (20), and a voltage supply unit (24), and continuously adjusts hydraulic systems.

公开(公告)号：US09869400B2

公开(公告)日：2018-01-16

申请号：US15024055

申请日：2014-11-18

Applicant: HYDAC FLUIDTECHNIK GMBH

Inventor： Frank Schulz ,  Michael Reik ,  Philipp Hilzendegen

IPC: F16K11/10 ,  F15B1/027 ,  F15B13/02 ,  F15B15/14 ,  F16K15/02 ,  F16K31/122

CPC classification number: F16K11/105 ,  F15B1/027 ,  F15B13/028 ,  F15B15/149 ,  F15B2211/20561 ,  F15B2211/212 ,  F15B2211/27 ,  F15B2211/30515 ,  F15B2211/3052 ,  F15B2211/7053 ,  F15B2211/785 ,  F16K15/026 ,  F16K31/1221 ,  F16K31/1225 ,  Y10T137/2567 ,  Y10T137/2569

Abstract: A valve device, in particular a double stop-check valve, preferably of the two-way valve type, has at least three fluid connections (1, 2, 3) provided in a valve housing (51). Two valve elements (65, 67) can slide in the valve housing (51). One control device (71) controls the valve elements (65, 67). At least one of the valve elements (65, 67) forms, together with parts (59/61) of the valve housing (51), a seat leak-tight closure part for the associated fluid connections (1, 2, 3).