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US 2009/0020178 A1Published application
Valve part of a hydraulic control valve
AssigneeSchaeffler KG
InventorJohn Stallmann
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AssigneeSchaeffler KG
InventorJohn Stallmann
Estimating the term…
A valve part of a hydraulic control valve for controlling flows of pressurized medium is provided. The valve part includes: a cylindrical valve housing with a valve housing hollow space that is open on one side in the axial direction, wherein the valve housing is provided with a radial first work connection (A), a radial second work connection (B), and a radial pressure connection (P), each of which opens into the valve housing hollow space, and a cylindrical control piston is held in the valve housing hollow space so that it can move in the axial direction with a control piston hollow space that is open on one side at an axial control piston hollow space opening. The control piston is provided with a radial discharge connection (T) opening into the control piston hollow space, and the control piston is constructed in such a way that the work connections (A, B) can be connected selectively in a fluid conducting way to the pressure connection (P) and the discharge connection (T) through axial displacement of the control piston. The valve part distinguishes itself in that a cover provided with at least one cover opening is attached to the axial control piston hollow space opening.
Valve part of a control valve for controlling flows of pressurized medium, comprising:
Control valve comprising an actuator and a valve part, the valve part including a cylindrical valve housing with a valve housing hollow space that is open on one side in an axial direction, the valve housing is provided with a radial first work connection, a radial second work connection, and a radial pressure connection, each of which open into the valve housing hollow space,
Camshaft adjuster comprising a control valve, the control valve including an actuator and a valve part, the valve part including a cylindrical valve housing with a valve housing hollow space that is open on one side in an axial direction, the valve housing is provided with a radial first work connection, a radial second work connection, and a radial pressure connection, each of which open into the valve housing hollow space,
Dependencies are inferred from the claim text.