Fuel pump
AssigneeLucas Industries public limited company
InventorsPierre Bouchauveau, Dany Guillot, Claude Leveque
Life of this patent
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Abstract
A fuel supply system for supplying fuel to the cylinders of an associated engine is disclosed. The system comprises a fuel pump for supplying high pressure fuel to a delivery line, a plurality of injectors connected to the delivery line and means operable to deliver fuel through the injectors to respective cylinders of an associated engine, and a control valve connected to the delivery line and operable to control the pressure of fuel within the delivery line.
Claims9
A fuel supply system comprising a fuel pump for supplying high pressure fuel to a common delivery line, a plurality of individually actuable injectors connected to the delivery line and control means associated with each injector operable to deliver fuel through the respective injector of an associated engine, and a control valve connected to the delivery line and operable to control the pressure of fuel within the delivery line, wherein the control valve comprises a housing defining a bore within which a valve needle is slidable, the valve needle being engageable with a seating to control fuel flow to an outlet, wherein the valve needle is moveable by fuel pressure exerted on said needle, which pressure is controlled by an electromagnetically actuable valve.
A fuel supply comprising:
- (a) A fuel pump supplying high-pressure fuel to a delivery line, the fuel pump having a pump body provided with a radially extending bore, a pumping plunger, being reciprocable within the bore under the action of a cam surface provided on a cam ring which is rotable relative to the pump body, the bore communicating through an inlet valve with a source of fuel, and through an outlet valve with the delivery line wherein the inlet and outlet valves are provided in respective radially extending drillings provided in the pump body;
- (b) A plurality of injectors operably connected to the delivery line, such that fuel is deliverable through the injectors to respective cylinders of an associated engine;
- (c) A control valve connected to the delivery line and operable to control the pressure of fuel within the delivery line.
Dependencies are inferred from the claim text.