Apparatus for testing water jackets on cylinder heads of internal combustion engines
US4860575A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 13, 1988 |
| Grant date | Aug 29, 1989 |
| Priority date | — |
| Expiry date | Jul 13, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
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…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.