초록 ▼

Herein disclosed is a cooling system for use with an internal combustion engine which is operated on evaporable fuel supplied from a fuel tank. The cooling system comprises a tube extending from the fuel tank to a venturi throat portion of an air induction passage of the engine, an expansion valve c

Herein disclosed is a cooling system for use with an internal combustion engine which is operated on evaporable fuel supplied from a fuel tank. The cooling system comprises a tube extending from the fuel tank to a venturi throat portion of an air induction passage of the engine, an expansion valve connected to the tube and opening the tube when a pressure in the tube downstream of the valve is reduced to a certain degree, an evaporator device connected to the tube at a position downstream of the expansion valve, and a structure for defining an enclosed space about the evaporator device.

대표청구항 ▼

A cooling system for use with a fuel injected engine which is operated on evaporable fuel supplied from a fuel tank through a fuel supply line to at least one fuel injection valve, said cooling system comprising: a tube extending from said fuel tank to a given portion of an air induction part of the

A cooling system for use with a fuel injected engine which is operated on evaporable fuel supplied from a fuel tank through a fuel supply line to at least one fuel injection valve, said cooling system comprising: a tube extending from said fuel tank to a given portion of an air induction part of the engine where a vacuum is produced under operation of the engine; said tube having a nozzle portion extending into an exterior of said given portion; an expansion valve connected to a part of said tube between said fuel tank and said nozzle portion, said expansion valve opening the tube when a pressure in the tube downstream of the valve is reduced to a certain degree; an evaporator device connected to said tube between said expansion valve and said nozzle portion; and means for defining an enclosed space about said evaporator device; a fuel return line to return a portion of the fuel to the fuel tank during operation of the engine; and a pressure regulator valve connecting the return line to the fuel supply line for controlling the amount of fuel supplied to the engine.