The most important point for improving the performance of a crankcase-scavenged two-stroke engine is to reduce the fresh charge losses to the exhaust due to a short circuit. This paper investigates the effects of a reciprocating-type exhaust control valve on the engine performance and exhaust emissions, and the results are compared with those of a traditional rotary-type valve. The experimental results indicate that the reciprocating-type valve can improve specific fuel consumption more significantly than the rotary type-valve without decreasing power. The HC emission can also be reduced tremendously by the effect of reducing fresh-charge losses.
|Number of pages||6|
|Journal||Transactions of the Japan Society of Mechanical Engineers Series B|
|Publication status||Published - 1 Jan 1994|
- Cycle Variation
- Exhaust Control Valve
- HC Reduction
- Two-Stroke Engine