公开(公告)号：US10678273B2

公开(公告)日：2020-06-09

申请号：US15554452

申请日：2016-05-06

Applicant: HYDAC FLUIDTECHNIK GMBH

Inventor： Maximilian Felix Hess ,  Markus Bill

IPC: G05D11/00 ,  G05D16/10 ,  F15B13/02 ,  F16K17/04 ,  F15B13/04

Abstract: A pressure-regulating valve has a valve piston (10) subjected to the action of an energy store and guided longitudinally in a valve housing (12). The valve housing has a supply port (14), a utility port (16) and a tank port (18) actuated by a control part (20) closing with a sealing action. In connecting from the supply port to the utility port, a pressure reduction function is realized. In a fluidic connection from the utility port to the tank port, a pressure-limiting function is realized. The control part (20) has a control rod (22) with two control bodies (24, 26) spaced apart from one another. One control body (24) controls the connection between supply port (14) and utility port (16). The other control body (26) controls the connection between utility port (16) and tank port (18).

公开(公告)号：US10584801B2

公开(公告)日：2020-03-10

申请号：US15571065

申请日：2016-01-15

Applicant: HYDAC FLUIDTECHNIK GMBH

Inventor： Peter Bruck ,  Gerd Schneider

IPC: F16B13/04 ,  F16K11/07 ,  F16K31/06 ,  F15B13/044 ,  F15B13/00 ,  F15B13/04

Abstract: A proportional pressure regulating valve has a spring-loaded valve piston (10) guided in and actuated by an actuating magnet (14) within a valve housing (12). Opposite valve piston sides are exposed to tank pressure. The valve piston (10) has a regulation surface (44) connectable to working port (A) for a regulation pressure (PR). A ring-shaped chamber (42) in the valve housing (10) opens into the working port (A). At the transition between the ring-shaped chamber (42) and the working port (A), the regulation surface (44) is active. When the actuating magnet (14) is deenergized, a maximum regulation pressure (PR) is generated.

公开(公告)号：US20190249693A1

公开(公告)日：2019-08-15

申请号：US16340799

申请日：2017-08-31

Applicant: HYDAC FLUIDTECHNIK GMBH

Inventor： Philipp HILZENDEGEN ,  Markus BILL ,  Maximilian Felix HESS

IPC: F15B13/04 ,  G05D16/20 ,  F15B11/05 ,  F15B13/01 ,  F15B13/02

CPC classification number: F15B13/0417 ,  F15B11/05 ,  F15B13/01 ,  F15B13/026 ,  F15B13/0405 ,  F15B2013/004 ,  F15B2211/3055 ,  F15B2211/40515 ,  F15B2211/40569 ,  F15B2211/41554 ,  F15B2211/41563 ,  F15B2211/41581 ,  F15B2211/426 ,  F15B2211/46 ,  F15B2211/465 ,  F15B2211/8606 ,  F15B2211/8613 ,  G05D16/2024

Abstract: The invention relates to a discharge pressure scale (30) consisting of at least one valve housing (41) having at least three fluid connection points in the form of a functional connector (A), a return flow connector (T) and a control connector (28), wherein a valve piston (52) is guided such that it moves longitudinally against the effect of an energy accumulator (42), moving from a respective opening or regulating position, against a valve seat (94), into a closed position, wherein the control (28) and return flow connectors (T) are separated from one another, characterised in that the fluid pressure present at the control connector (28) can be guided onto a pressure-active surface (A1*) of the valve piston (52) by means of a pressure compensation device (70) in such a way that it moves into its respective opening or regulating position in a pressure-compensated manner due to the force of the energy accumulator (42).

公开(公告)号：US20190162319A1

公开(公告)日：2019-05-30

申请号：US16313537

申请日：2017-06-19

Applicant: HYDAC FLUIDTECHNIK GMBH

Inventor： Frank SCHULZ ,  Peter BRUCK

IPC: F16K11/07 ,  F16K31/06

Abstract: A device, consisting of at least one control piston (12) which is longitudinally displaceable in a housing (10) comprising at least two connection points (P, A) for fluid, and which cooperates with a metering edge (34) of the housing (10) at a connection point (P), said point, in control positions of the control piston (12), supplying the other connection point (A) with fluid via a fluid connection, and which piston, as a result of occurring flow forces, tends to be drawn in the direction of a closing position which blocks one of these fluid connections. The device is characterized in that in order to compensate the flow force, the control piston (12) has, in the region of the control edge (34) of the housing (10), a shape modification (48) of its cylindrical exterior basic form (50), such that a flow contact surface (52) for fluid is created, which surface transfers a compensating force that acts against the flow force to the control piston (12) and that seeks to pull the control piston (12) into an opening position opposed to the closing position.

公开(公告)号：US10228709B2

公开(公告)日：2019-03-12

申请号：US15547560

申请日：2016-01-09

Applicant: HYDAC FLUIDTECHNIK GMBH

Inventor： Peter Bruck ,  Martin Grill

IPC: F16K17/06 ,  G05D16/10 ,  F15B13/02 ,  F16K1/42 ,  F16K17/04 ,  F16K31/40 ,  F16K15/02 ,  F16K31/122 ,  F15B13/04 ,  F15B20/00 ,  F15B21/047

Abstract: A pressure-limiting valve with feed function includes a valve housing (20) having a working connection (A) and a tank connection (T). A spring-loaded pressure-limiting valve piston (22) is mounted and longitudinally movable in the valve housing (20). A spring-loaded non-return valve piston (56) for the implementation of the feed function is designed as a hollow piston and is mounted to be longitudinally movable in the valve housing (20).

公开(公告)号：US20180299025A1

公开(公告)日：2018-10-18

申请号：US16064057

申请日：2016-12-21

Applicant: HYDAC FLUIDTECHNIK GMBH

Inventor： Philipp HILZENDEGEN ,  Peter BRUCK ,  Martin GRILL

IPC: F16K31/06 ,  F15B13/04 ,  F15B13/02 ,  F15B13/044 ,  F16K11/07

CPC classification number: 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 ,  G05D16/2024

Abstract: 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.

公开(公告)号：US20180163889A1

公开(公告)日：2018-06-14

申请号：US15571065

申请日：2016-01-15

Applicant: HYDAC FLUIDTECHNIK GMBH

Inventor： Peter BRUCK ,  Gerd SCHNEIDER

IPC: F16K31/06 ,  F16K11/07

Abstract: A valve, in particular proportional pressure regulating valve, having a spring-loaded valve piston (10) which is guided in longitudinally displaceable fashion, in a manner actuated by an energizable actuating magnet (14), within a valve housing (12) and which, in a manner dependent on the displacement position thereof, produces or shuts off again a fluid-conducting connection between a pump port (P) and a working port (A) and between said working port (A) and a tank port (T) in the valve housing, wherein those face sides of the valve piston (10) which are situated opposite one another are permanently acted on by the pressure of the tank port (T), and wherein the valve piston (10) has a regulation surface (44) which is active in terms of pressure and which is connectable in fluid-conducting fashion to the working port (A) for the generation of the regulation pressure (PR), and having a ring-shaped chamber (42) in the valve housing (10), into which ring-shaped chamber the working port (A) opens in a radial or axial direction, characterized in that, on the valve piston (10), at the location of the transition between the ring-shaped chamber (42) and the opening-in point of the working port (A), the regulation surface (44) which is active in terms of pressure is designed such that, in the deenergized state of the actuating magnet (14), a maximum regulation pressure (PR) can be generated by virtue of a respective settled state between the force of a compression spring (30) of the spring-loaded valve piston (10) and the regulation pressure (PR) prevailing at the regulation surface (44) of the valve piston (10) taking effect.

公开(公告)号：US20180080568A1

公开(公告)日：2018-03-22

申请号：US15554239

申请日：2016-01-29

Applicant: HYDAC FLUIDTECHNIK GMBH

Inventor： Peter BRUCK

IPC: F16K11/07 ,  F16K31/06

Abstract: The invention relates to a valve, in particular a proportional pressure regulating valve, comprising a valve piston (12) which is longitudinally movable in a valve housing (10) for alternately releasing and connecting a user connection (A) to a pressure supply port (P) or a tank connection (T), which can be actuated by means of an actuating magnet (14) and which produces a dither signal during operation, characterized in that the valve piston (12) reaches a floating position within the valve housing (10) by means of a hydraulic lift limitation for the receipt of the dither signal.

公开(公告)号：US20180024577A1

公开(公告)日：2018-01-25

申请号：US15547560

申请日：2016-01-09

Applicant: HYDAC FLUIDTECHNIK GMBH

Inventor： Peter BRUCK ,  Martin GRILL

IPC: G05D16/10 ,  F16K31/122 ,  F16K15/02

CPC classification number: G05D16/106 ,  F15B13/024 ,  F15B13/0405 ,  F15B20/007 ,  F15B21/047 ,  F16K1/42 ,  F16K15/026 ,  F16K17/0433 ,  F16K31/1221 ,  F16K31/408

Abstract: 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).

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).