초록 ▼

A cooling device for a fuel pump and for fuel in a marine internal combustion engine fuel system includes a housing for water circulation therethrough, a fuel pump disposed in the housing and cooled by the water therein, the fuel pump having a fuel inlet and a fuel outlet, a fuel conduit connected t

A cooling device for a fuel pump and for fuel in a marine internal combustion engine fuel system includes a housing for water circulation therethrough, a fuel pump disposed in the housing and cooled by the water therein, the fuel pump having a fuel inlet and a fuel outlet, a fuel conduit connected to the fuel pump inlet for delivering fuel to the fuel pump, and a fuel recycle line extending through the housing for conducting unused fuel from an internal combustion engine to the fuel conduit. The water circulating in the housing is operative to cool the fuel pump and fuel therein, and to cool the unused fuel in the fuel recycle line.

대표청구항 ▼

[ What is claimed is:] [1.] A cooling device for a fuel pump and for fuel in a marine internal combustion engine fuel system, said device comprising:a housing provided with a water inlet and a water outlet, said housing having spaced apart external and internal walls defining a chamber through which

[ What is claimed is:] [1.] A cooling device for a fuel pump and for fuel in a marine internal combustion engine fuel system, said device comprising:a housing provided with a water inlet and a water outlet, said housing having spaced apart external and internal walls defining a chamber through which water circulates between said inlet and said outlet;a fuel pump disposed in said housing within said internal wall, said fuel pump being provided with a fuel inlet and a fuel outlet;a fuel conduit connected to said fuel pump fuel inlet for delivering fuel to said fuel pump; anda fuel recycle line having an inlet portion for conducting unused fuel from the internal combustion engine, a coil portion winding around said internal wall and through said chamber in said space between said external and internal walls of said housing, said coil portion receiving fuel from said fuel recycle line inlet portion, and an outlet portion extending between said fuel recycle line coil portion and said fuel conduit, to flow unused fuel from the engine through said housing and into said fuel conduit;whereby said fuel pump and fuel therein are cooled by water in said chamber, and fuel in said fuel recycle line coil portion is cooled by water in said chamber, to maintain the fuel in a relatively cool condition to avoid vapor lock in the fuel system.