Patent ID: 6398317
Filing Date: 2002-06-04
Classification: B60T,F16K,Y10S,Y10T

Abstract:
A hydraulic vehicle brake system with wheel slip control, comprising:a primary and a secondary circuit, a valve interposed between the primary and the secondary circuit said valve including a valve seat member and a valve closure member with a pilot pressure, means for automatically permitting an increase of the pilot pressure of the valve closure member acted upon by a valve spring, wherein the pilot pressure is overcome to switch the valve closure member to an open position, at least to such an extent that the valve closure member remains in a closed position during wheel-slip free operation of the brake system, and further comprising a swelling body, wherein the valve spring engages the swelling body, and wherein the valve closure member, the valve spring and the swelling body are positioned inside a hollow chamber provided by an accommodating member and the valve seat member, wherein the swelling body biases the valve closure member against the valve seat member after the hollow chamber is filled with a brake fluid.