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1. 发明公开

EP3256742A1 DRUCKBEGRENZUNGSVENTIL 有权
标题翻译：泄压阀
公开(公告)号：EP3256742A1
公开(公告)日：2017-12-20
申请号：EP16700525.5
申请日：2016-01-09
申请人： Hydac Fluidtechnik GmbH
发明人： BRUCK, Peter , GRILL, Martin
IPC分类号： F15B13/02 , F16K17/10
CPC分类号： G05D16/106 , F15B13/024 , F15B13/0405 , F15B20/007 , F15B21/047 , F16K1/42 , F16K15/026 , F16K17/0433 , F16K31/1221 , F16K31/408
摘要： A pressure-limiting valve with feed function, comprising a valve housing (20) having at least two connection points, in particular in the form of a working connection (A) and a tank connection (T), and having a spring-loaded pressure-limiting valve piston (22) which is mounted such as to be longitudinally movable in the valve housing (20), and having a spring-loaded non-return valve piston (56) for the implementation of the feed function, is characterized in that the non-return valve piston (56) is designed as a hollow piston and is mounted such as to be longitudinally movable in the valve housing (20).

2. 发明公开

EP3005008A2 PROPORTIONAL-DRUCKREGELVENTIL 有权
标题翻译：比例压力调节器
公开(公告)号：EP3005008A2
公开(公告)日：2016-04-13
申请号：EP14716520.3
申请日：2014-04-08
申请人： Hydac Fluidtechnik GmbH
发明人： GRILL, Martin , BRUCK, Peter
IPC分类号： G05D16/20
CPC分类号： G05D16/2013
摘要： The invention relates to a proportional pressure-regulating valve (10) for actuating a first fluid connection (f1) from a working connection (A) to a tank connection (T) and a second fluid connection (f2) from a supply connection (P) to the working connection (A), comprising a regulating piston (14), which is guided in a displaceable manner in a valve housing (12) and opens the first fluid connection (f1) and closes the second fluid connection (f2) when in at least one first position, and closes the first fluid connection (f1) and opens the second fluid connection (f2) when in at least one second position, is characterised in that the regulating piston (14) can be displaced from a first position into a third position when the first fluid connection (f1) is open by the total differential pressure produced when fluid flows through, and that when the regulating piston (14) is in the third position, the first fluid connection (f1) is opened with an enlarged opening cross section compared to the first position and the second fluid connection (f2) remains closed.

4. 发明公开

EP3394454A1 VENTIL, INSBESONDERE 4/2-WEGESCHIEBERVENTIL 有权
公开(公告)号：EP3394454A1
公开(公告)日：2018-10-31
申请号：EP16825325.0
申请日：2016-12-21
申请人： Hydac Fluidtechnik GmbH
发明人： HILZENDEGEN, Philipp , BRUCK, Peter , GRILL, Martin
IPC分类号： F15B13/04 , F15B13/044 , F16K11/00 , G05D16/20
CPC分类号： F16K31/0613 , F15B13/025 , F15B13/0402 , F15B13/044 , F15B2013/004 , F15B2013/041 , F15B2013/0448 , F15B2211/30525 , F15B2211/327 , F15B2211/50554 , F16K11/00 , F16K11/0716 , F16K27/041 , F16K27/048 , G05D16/2013
摘要： The invention relates to a valve, in particular a 4/2-way slide valve (60), comprising a valve piston (67), which is guided in a longitudinally movable manner in a valve housing (25), for selectively connecting and disconnecting fluid connections in the valve housing (25), such as a pressure supply connection (P), a tank connection (T), and two utility connections (A, B), and comprising a magnetic system (49), to which current can be supplied, for controlling the valve piston (67), characterized in that, when no current is supplied to the magnetic system (49), the control pressure at one of the utility connections (A, B) can be set, in particular limited, by means of a control device (62, 70, 79, 80, 88) arranged in the valve housing.

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