Valve for a vibration damper, vibration damper, and motor vehicle
AssigneeZF Friedrichshafen AG
InventorAndreas Förster
Life of this patent
Estimating the term…
Abstract
A valve for a vibration damper having a valve housing and a valve slide movable in the valve housing for at least partially closing at least one flow path of a fluid flowing through the valve. The valve has an input side and an output side. The pressure impingement surfaces of the valve slide for an opening pressure and for a closing pressure are substantially equal, and the valve slide has a constriction via which a pressure difference between opening pressure and closing pressure can be generated. At least one channel connects the interior space of the valve slide to the exterior space of the valve slide.
Claims17
A valve having for a vibration damper comprising:
- a valve housing;
- an input side of the valve;
- an output side of the valve;
- a valve slide movable in the valve housing configured to at least partially close at least one flow path of a fluid flowing through the valve;
- a first conical pressure impingement surface of the valve slide for an opening pressure;
- a second conical pressure impingement surface of the valve slide for a closing pressure, the first pressure impingement surface and the second pressure impingement surface being substantially equal;
- a substantially cylindrical constriction of the valve slide connecting the first conical pressure impingement surface and the second conical pressure impingement surface at their respective narrow ends and via which a pressure difference between the opening pressure and the closing pressure can be generated;
- and
- at least one channel that connects an interior space of the cylindrical constriction of the valve slide to an exterior space of the valve slide.
A vibration damper for a motor vehicle, comprising:
- a valve comprising:
- a valve housing;
- an input side of the valve;
- an output side of the valve;
- a valve slide movable in the valve housing configured to at least partially close at least one flow path of a fluid flowing through the valve;
- a first conical pressure impingement surface of the valve slide for an opening pressure;
- a second conical pressure impingement surface of the valve slide for a closing pressure, the first pressure impingement surface and the second pressure impingement surface being substantially equal;
- a substantially cylindrical constriction of the valve slide connecting the first conical pressure impingement surface and the second conical pressure impingement surface at their respective narrow ends and via which a pressure difference between the opening pressure and the closing pressure can be generated;
- and
- at least one channel that connects an interior space of the cylindrical constriction of the valve slide to an exterior space of the valve slide.
A motor vehicle comprising
- a vibration damper comprising:
- a valve comprising:
- a valve housing;
- an input side of the valve;
- an output side of the valve;
- a valve slide movable in the valve housing configured to at least partially close at least one flow path of a fluid flowing through the valve;
- a first conical pressure impingement surface of the valve slide for an opening pressure;
- a second conical pressure impingement surface of the valve slide for a closing pressure, the first pressure impingement surface and the second pressure impingement surface being substantially equal;
- a substantially cylindrical constriction of the valve slide connecting the first conical pressure impingement surface and the second conical pressure impingement surface at their respective narrow ends and via which a pressure difference between the opening pressure and the closing pressure can be generated;
- and
- at least one channel that connects an interior space of the cylindrical constriction of the valve slide to an exterior space of the valve slide.
Dependencies are inferred from the claim text.