Patent ID: 6951206

Claim:
An automotive fuel supply apparatus comprising: a fuel pump for conveying fuel under pressure from inside a fuel tank, said fuel pump including a check valve; a fuel distribution line for connecting said fuel pump and a fuel injection valve of an engine; a fuel pressure regulator connected to said fuel distribution line for controlling fuel pressure in said fuel distribution line so as to be at a controlled pressure; a pressure accumulator disposed on said fuel distribution line for accumulating pressure in said fuel conveyed under pressure to said fuel distribution line; a pressure detector for measuring fuel pressure inside said fuel distribution line; and a pump controlling means for controlling activation of said fuel pump in response to output from said pressure detector, wherein said pump controlling means is constructed such that activation of said fuel pump is switched off when said output from said pressure detector is a first set pressure, and activation of said fuel pump is switched on when said output from said pressure detector is a second set pressure which is less than said first set pressure and said controlled pressure of said fuel pressure regulator.