Robert Boschgmbh

Diesel Technology Company

Thomas K Rapp

Scott A Goodenough

Gregg R Spoolstra

Michael T Dillane

Brent Brower

Daren Bolbolan

Thomas Stegink

Tim D Haas

Aaron M Jacobs

A fuel injector pump in a direct-injection fuel delivery system for an internal combustion engine including a solenoid valve for controlling transfer of fluid from a high pressure chamber to a fuel injector nozzle. A supply passage and a return passage provide a fuel flow circuit for the fuel delivery system, the high pressure chamber being defined in part by a camshaft-driven plunger. An independent fuel leak flow path is provided to accommodate fuel leakage past a plunger of the pump, the fuel leak flow path extending to a zero pressure fuel tank.

Fuel injector for an internal combustion engine

A fuel injector pump in a direct-injection fuel delivery system for an internal combustion engine including a solenoid valve for controlling the transfer of fluid from the high pressure chamber of the camshaft driven pump pressure chamber to a fuel injector nozzle. A supply passage accommodates fuel delivery and return for fuel supplied by a fuel pump. A second independent leak flow path is provided to accommodate fuel leaking past a plunger of the high pressure pump, the fuel leak path extending to the fuel supply rather than leaking past the high pressure plunger of the pump to the engine lubrication oil circuit.

Fuel injection pump for an internal combustion engine

Growing community of inventors

Besigheim, Germany

Thomas K Rapp