Engine oil leak test system and method

Details Engine oil leak test system and method Engine oil leak test system and method

2008-03-25

2008-03-25

McCall, Eric S. (Department: 2855)

Measuring and testing

Simulating operating condition

Marine

C073S049700

Reexamination Certificate

active

07347087

ABSTRACT:
A system and method for testing partially assembled engines for possible oil leaks. The system includes engine pressurizing devices that are automatically controlled by a controller according to a predetermined control program based upon the engine model type being tested. The pressurizing devices introduce pressurized air into the engine oil system. A leak testing unit monitors the pressurized engine for pressure drops indicative of an oil seal leak. Air pressure leaks resulting from inherently air-porous EGR valves are compensated for by an EGR compensating unit, which provides pressurized air to an intake side of the EGR valve. The flow of pressurized air through the EGR compensating unit is monitored to determine whether there is a problem with the EGR valve.

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