1993-03-01

Development of Model 6105 Adiabatic Engine 930984

A commercially available water-cooled engine Model 6105 was modified into an adiabatic engine without independent cooling water system. The modified engine was built to have monolithic ceramic composite pistons and zerconia coatings on the firedeck of cylinder heads, the disk surface of inlet and exhaust valves, and the upper part of cylinder liners. Its supercharging system and fuel injection system were adjusted.
The test results showed that such modifiation could lead to an improvement up to 5.5% of fuel consumption over the baseline engine.
Having undergone a 400-hour endurance stand test, the engine was installed in a bus, and has been completed a on-board trial covering more than 10000km.

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