US 12,378,977 B2
Valve for providing a fluid-conducting connection between a pressure supply port and a consumer port or between the consumer port and a return port
Peter Bruck, Althornbach (DE); Benjamin Röder, Saarbrüken (DE); and Markus Bill, Eppelborn (DE)
Assigned to HYDAC FLUIDTECHNIK GMBH, Sulzbach/Saar (DE)
Appl. No. 18/568,969
Filed by HYDAC Fluidtechnik GmbH, Sulzbach / Saar (DE)
PCT Filed Jun. 7, 2022, PCT No. PCT/EP2022/065351
§ 371(c)(1), (2) Date Dec. 11, 2023,
PCT Pub. No. WO2022/258589, PCT Pub. Date Dec. 15, 2022.
Claims priority of application No. 10 2021 003 039.7 (DE), filed on Jun. 12, 2021.
Prior Publication US 2024/0271642 A1, Aug. 15, 2024
Int. Cl. F16K 11/07 (2006.01); F15B 13/044 (2006.01)
CPC F15B 13/044 (2013.01) [F16K 11/0708 (2013.01); F16K 11/0716 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A valve, having a valve housing and a valve piston; wherein
the valve piston is arranged in the valve housing so as to be longitudinally movable; wherein
the valve piston can be actuated by an actuating solenoid to produce either a fluid-conducting connection between a pressure supply port and a consumer port or between the consumer port and a return port in the valve housing; wherein
the valve piston is permanently connected to the return port at opposing end faces in a fluid-conducting manner; wherein the valve piston has a pressure-active measuring surface in the region of the consumer port;
the pressure-active measuring surface provides the respective fluid pressure at the consumer port as a counterforce to the actuating force of the actuating solenoid when the actuating solenoid is energised in order to produce a fluid-conducting connection between the pressure supply port and the consumer port;
the consumer port consists of a plurality of rows of drilled holes arranged one behind the other when viewed in the direction of travel of the valve piston;
one row of drilled holes serves to establish the fluid-conducting connection between the pressure supply port and the consumer port and a second row of drilled holes serves to transfer the pressure from the consumer port to the measuring surface of the valve piston; and wherein
a third row of drilled holes serves to establish a fluid-conducting connection between the consumer port and the return port.