US 12,366,291 B2
Valve module with active valve oiling
Matthias Grenzhäuser, Bühl (DE); and Christopher Schneider, Bad Herrenalb (DE)
Assigned to Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Appl. No. 18/567,871
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
PCT Filed Apr. 25, 2022, PCT No. PCT/DE2022/100308
§ 371(c)(1), (2) Date Dec. 7, 2023,
PCT Pub. No. WO2022/262889, PCT Pub. Date Dec. 22, 2022.
Claims priority of application No. 10 2021 115 301.8 (DE), filed on Jun. 14, 2021.
Prior Publication US 2024/0280171 A1, Aug. 22, 2024
Int. Cl. F16H 61/00 (2006.01); F15B 21/047 (2019.01)
CPC F16H 61/0009 (2013.01) [F15B 21/047 (2013.01); F16H 2061/0037 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A valve module configured for installation in a predetermined installation position within a hydraulic control system, the valve module comprising:
a valve including a valve piston configured to be displaced in an actuating direction within a housing, the housing having a plurality of openings configured to be opened and closed via displacement of the valve piston, and
a first opening of the plurality of openings is configured as a tank connection, and the valve is connected to a reservoir for a hydraulic medium via the tank connection, and
the tank connection is fluidly connected to a buffer volume having an overflow arranged above an upper face of the valve piston when the valve module is installed in the predetermined installation position.