Durability improvement of cylinder head in alternate fuel engines. 2018-32-0055
Alternate fuels like LPG and CNG are beneficial in terms of operating cost and emissions as well. They contribute to reduce carbon emissions compared to petrol. These gas fuels are also known for its problems in engines including wear of parts. Cylinder head valve – seat wear is higher in gas engines. This paper discusses the experimental work on reduction of valve –seat wear on 3 wheeler engine. In the development of new higher power version of the gas engines valve-seat interface wear is observed.
Mechanism of the wear is investigated. Effect of this wear on performance, leak and emissions were studied, qualitative measurements of valve temperatures were studied at different conditions with different fuels. Combustion gas and part temperatures are higher in gas engines. Simulation test cycle is developed for the wear test and various solutions to reduce wear at the valve – seat interface were evaluated. Cost effective solution is implemented with minimum changes in engine.
TVS Motor Co., Ltd.
SAE/JSAE Small Engine Technology Conference