Combustion leak tester
US4750350A · kind A · utility
Inventor
Key dates
| Filing date | Feb 17, 1987 |
| Grant date | Jun 14, 1988 |
| Priority date | — |
| Expiry date | Feb 17, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention relates to a portable combustion leak tester for water-cooled internal combustion engines. The tester comprises a top cap, a transparent, hollow sightglass attached to the bottom of the cap and a frustro-conical bottom nose-cone attached to the bottom of the sightglass adapted to fit into a radiator inlet. The tester has a longitudinal air-passageway therethrough with a check-ball chamber and check-ball located in the upper portion of the nose-cone. The tester is supplied with water through an upper passageway filled so that approximately one inch of water fills the sightglass. The device is then secured to the radiator filling mouth. If there are pressure leaks from the combustion chamber of the engine into the cooling jacket. When the engine is running, air bubbles can be observed in the sightglass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.