Flow through fuel pressure regulator.

摘要

A fuel pressure regulator (30) and in-tank mounting (28) for use in a non-return type fuel injection system of an automotive vehicle. The regulator housing is divided by a diaphragm (54) into an inlet chamber (56) and an outlet chamber (58). A spring (82) in the outlet chamber biases the diaphragm toward closing a through-passage (66) in the center of the diaphragm. The pressurized fuel supply is communicated to the inlet chamber (56) to open this through-passage (66) to an extent that allows the proper amount of excess fuel to pass through the outlet chamber from an outlet (86) of which the excess fuel spills into the tank (12), thereby regulating the pressure of the fuel supply. Several embodiments of pressure regulator are disclosed.