Patent ID: 6439263
Filing Date: 2002-08-27
Classification: F02M,G05D,Y10T

Abstract:
A pressure regulating valve for regulating a pressure of a fluid, in particular in a fuel supply system of an internal combustion engine, the regulating valve having: a fluid inlet (6), having a fluid continuation (8), having a dividing wall (10) dividing the fluid continuation (8) from the fluid inlet (6), a fluid opening (18) leading from the fluid inlet (6) through the dividing wall (10) into the fluid continuation (8), having a closing body (20, 20a, 20b), a valve seat (22) surrounding the fluid opening (18), the valve seat (22) being located at least indirectly on the dividing wall (10), and a spring device (24, 24a) urging the closing body (20, 20a, 20b) towards a position in which it would close the fluid opening (18), characterized in that an outflow throttle restriction (28, 28a) is provided downstream of the valve seat (22) wherein an intermediate pressure chamber (30) is provided between the valve seat (22) and the outflow throttle restriction (28, 28a), the outflow throttle restriction (28, 28a) provides a connection between the intermediate pressure chamber (30) and the fluid continuation (8), and wherein the connection provided by the outflow throttle restriction (28, 28a) is independent of the position of the closing body (20, 20a, 20b).