Pressure-dependent valve for a vibration damper
AssigneeMannesmann Sachs AG
InventorsAndreas Förster, Joachim Kühnel
Life of this patent
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Abstract
A pressure-dependent valve, for use with an adjustable vibration damper comprising a piston rod arranged in an axially movable fashion in a cylindrical tube filled with damping fluid, is controlled by a pressure transducer pressurized via a pressure connection opening. The pressure-dependent valve includes a valve body axially movable relative to a valve surface. The valve body and valve surface together determine a valve passage cross-section. The pressure transducer is float-mounted in a pressure space and supported by at least one spring. One of the valve parts determining the valve passage cross-section is movable relative to the current position of the pressure transducer by an adjustment device.
Claims13
The pressure-dependent valve for use with an adjustable vibration damper having a piston rod axially movable arranged in a fluid filled cylinder, the pressure-dependent valve comprising:
- a plurality of valve parts for determining a valve passage cross-section including a valve surface and a valve body, wherein said valve body is axially movably mounted relative to said valve surface, a relative position of said valve body and said valve surface determining said valve passage cross-section;
- a pressure transducer float mounted in a pressure space in said pressure-dependent valve and receiving a control pressure via a pressure connection opening for activating said valve body in response to said control pressure;
- a spring supporting said pressure transducer;
- and
- an adjustment device comprising a threaded joint operatively connected for adjustably positioning one of said plural valve parts relative to a position of said pressure transducer, wherein said valve body comprises an extension and said pressure transducer comprises an opening, said extension of said valve body extending through said opening to a side of said pressure transducer facing away from said valve body, said adjustment device being arranged between said extension and said pressure transducer.
Dependencies are inferred from the claim text.