Patent ID: 6213143
Filing Date: 2001-04-10
Classification: B01D,F02M,Y10T

Abstract:
A liquid filter, comprising a pressure regulator for fuel with a pressure regulator valve; and a filter unit including a housing with a filter element located between a dirty side and a clean side of said housing so that fuel flows through said filter element radially from outside inwards; and inflow connector connected to said dirty side of said housing, an outflow connector connected to said clean side of said housing; said housing also having a tank connector arranged so that a liquid flowing through said pressure regulator valve flows out of said connector upon a response of said pressure regulator; a diaphragm forming a movable valve member of said pressure regulator and loaded by a liquid pressure counter to a spring action so as to control said pressure regulator valve, said pressure regulator being connected between said clean and said tank connector, said diaphragm being formed and arranged so that a liquid stream flowing away to said tank connector flows through an inside of said diaphragm, said housing having a cup-shaped housing part and a one-piece cap secured with said cup-shaped housing part and has a tubular support member on which said filter element is tightly supported, said pressure regulator and said tank connector being disposed coaxially to one another on said cap, said cap having a concentric wall, said diaphragm having a clamping point which is located on an outer circumference of said diaphragm on said concentric wall of said cap, said diaphragm being non-releasably mounted on said cap, said tank connector being located centrally in said cap; and an inflow connector located radially outside said clamping point.