초록 ▼

A device and method are disclosed for simultaneously testing the fluid tightness of the entire pressurizable coolant system of an engine, such as an internal combustion engine, including the radiator, the coolant flow passages within the engine block, the pressure-type radiator filler cap and the co

A device and method are disclosed for simultaneously testing the fluid tightness of the entire pressurizable coolant system of an engine, such as an internal combustion engine, including the radiator, the coolant flow passages within the engine block, the pressure-type radiator filler cap and the connecting hoses. The device and method of the invention further provide for simultaneous testing of the integrity of the outer and inner seals typically formed by the pressure-type radiator filler cap with the radiator filler neck.

대표청구항 ▼

A pressure testing device for testing the fluid tightness of an engine cooling system, the engine cooling system having a filler neck formed to provide an open mouth circumscribed by an outer seat, the filler neck further providing an inner seat, and an overflow vent between the seats, said filler n

A pressure testing device for testing the fluid tightness of an engine cooling system, the engine cooling system having a filler neck formed to provide an open mouth circumscribed by an outer seat, the filler neck further providing an inner seat, and an overflow vent between the seats, said filler neck having an interior chamber between said seats, and a pressure-type cap sealingly engageable with the outer seat of the filler neck to secure the top to the neck in spanning relation to the mouth thereof, and sealingly engageable with the inner seat of the filler neck, thereby forming outer and inner seals therewith, the cap further including a vacuum valve operative as a bypass of pressure from the interior chamber of said filler neck through said cap into the engine cooling system, comprising: a conduit, means for connecting the conduit to the vent of the filler neck, a source of pressure for the conduit, means for determining the level of pressure within the conduit.