Measuring and testing – With fluid pressure – Motor part or auxiliary
Patent
1988-07-13
1989-08-29
Levy, Stewart J.
Measuring and testing
With fluid pressure
Motor part or auxiliary
G01M 1500
Patent
active
048605751
ABSTRACT:
Apparatus for testing heads of internal combustion engines of various sizes for fluid tightness of the internal cavities in the head. The apparatus includes a generally rectangular retaining frame which is pivotally supported on two vertical end members of a base for pivotal motion about a longitudinal axis. A head support frame is supported by the retainer frame for movement towards and away from the retainer frame. Spaced pneumatic cylinders move the support frame towards and away from the retainer frame. Each of the frames have a plurality of transverse members whose spacing is adjustable to provide support and retention for engine heads of various sizes. The testing apparatus includes a test plate having internal cavities to match those of the engine head being tested. The plate and engine head are clamped together and sealed by means of a gasket between the head and the test plate while they are clamped between the support frame and the retainer frame. The test plate has means for admitting air under pressure whereby the internal cavities of the test plate and of the engine head are subjected to air under pressure. While under pressure the engine head is rotated about the axis of the retainer frame while a soapy solution is applied to the engine head so that any leaks of air from the internal cavities might be detected.
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Dover Cylinder Head Service
Levy Stewart J.
Roskos Joseph W.
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