DEVICE FOR SUPPLYING AN INTERNAL COMBUSTION ENGINE WITH FUEL FROM A TANK

摘要

The device has a feed pump insertable into a tank (12) through an aperture (20). The aperture (20) is covered by a closure (22) on which there is a pressure regulator which is connected to the internal combustion engine and can be connected to a discharge chamber (12). The closure (22) has a plastic basic body (30) in which there is a depression (40) closed off by an elastic diaphragm (52) to form a pressure chamber. Into the depression (40) projects a pipe (45) which is connected to the discharge chamber (12) and the forward end (51) of which can be closed off by a flattened sphere (74) pivotably fitted in a support (70) secured to the diaphragm (52). The diaphragm (52) is clamped between a securing component (54) and the basic body (30) and the flattened part (75) of the sphere (74) is pressed against the front end (51) of the pipe (45) by a pretensioned spring (60) engaging on the diaphragm (52). When a set pressure in the pressure chamber is exceeded, the diaphragm (52) lifts off, the sphere (74) uncovers the pipe (45) and fuel can flow from the pressure chamber.