Patents Represented by Law Firm Reising, Ethigton Barnes, Kisselle, Learman & McCulloch, P.C.
  • Patent number: 6158975
    Abstract: A fuel pump module constructed to be disposed exteriorly of a vehicle fuel tank carries, as a single unit, an electric motor fuel pump and a pressure control device which controls the pressure of fuel delivered to an internal combustion engine from the fuel pump. Fuel supplied from the fuel tank to the module is drawn into the fuel pump which increases the pressure of the fuel and then discharges the fuel under pressure from an outlet of the fuel pump which communicates with the pressure control device carried by the module and an outlet of the module which in turn, communicates with the engine. The pressure control device may be either a pressure relief valve, which functions to limit the maximum pressure of the fuel delivered to the engine, or a fuel pressure regulator, such as a bypass pressure regulator, which bypasses to a point upstream of the fuel pump inlet fuel delivered from the fuel pump in excess of the engine's fuel demand.
    Type: Grant
    Filed: September 24, 1998
    Date of Patent: December 12, 2000
    Assignee: Walbro Corporation
    Inventors: Shawn Dill, Peter P. Kuperus, Ronald H. Roche, Tomoko Takano