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US 2005/0229906 A1Published application
Fuel supply apparatus for engine and method thereof
AssigneeHitachi, Ltd.
InventorHajime Hosoya
Life of this patent
Estimating the term…
Abstract
When a pressure of fuel supplied to an engine is higher than a target, the fuel is carried in a reverse direction by rotating a fuel pump in reverse, and in accordance therewith, the fuel pressure is made to fall with good responsiveness.
Claims19
A fuel supply apparatus for an engine comprising:
- a fuel tank;
- a fuel pump which supplies fuel from said fuel tank to said engine;
- and
- a control device which switches a rotational direction of said fuel pump to a normal direction and a reverse direction.
1 more element
A fuel supply apparatus for an engine comprising:
- a fuel tank;
- a fuel pump which supplies fuel from said fuel tank to said engine;
- and
- control means for switching a rotational direction of said fuel pump to a normal direction and a reverse direction.
1 more element
A fuel supply method for an engine which has a fuel tank and a fuel pump which supplies fuel from said fuel tank to the engine, comprising the steps of:
- judging whether or not there is a request for reduction in a fuel supply pressure;
- and
- rotating said fuel pump in the reverse direction when a request for reduction in said fuel supply pressure is generated.
Dependencies are inferred from the claim text.