Apparatus for and method of testing diesel engine heads for fuel

Details Apparatus for and method of testing diesel engine heads for fuel Apparatus for and method of testing diesel engine heads for fuel

1991-10-21

1993-03-23

Williams, Hezron E.

Measuring and testing

With fluid pressure

Motor part or auxiliary

73119A, G01M 326

Patent

active

051953625

ABSTRACT:
A method and apparatus for testing an engine cylinder head for leaks regardless of whether the cylinder head is attached to an engine block. The cylinder head has a fuel injector aperture extending from a first side to a second side thereof, has a coolant passageway communicating with the fuel injector apertures between the first and second sides of the cylinder head, and has a sleeve in the fuel injector aperture to separate the fuel injector aperture from the coolant passageway. An air-tight seal is formed in the fuel injector aperture between the coolant passageway and the first side of the cylinder head. Another air-tight seal is formed in the fuel injector aperture between the coolant passageway and the second side of the cylinder head. The fuel injector aperture is then pressurized between the air-tight seals thereof. The pressure of the fuel injector aperture between the air-tight seals is then monitored over a period of time.

REFERENCES:
patent: 1580786 (1926-04-01), Krone
patent: 2328289 (1943-08-01), Morgan
patent: 2342616 (1944-02-01), O'Brien
patent: 2618963 (1952-11-01), Wagenhals
patent: 3029630 (1962-04-01), Cummins
patent: 3874225 (1975-04-01), Fegel
patent: 4602500 (1986-07-01), Kelly

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