| 摘要 |
A split cycle internal combustion spark ignition engine having a firing cylinder (10) and a compression cylinder (11) each with pistons connected to a common crankshaft. To enable spark ignition at a voltage giving acceptable spark plug life while retaining the advantages of high combustion chamber pressure is initially contained by admitting a pilot charge of fuel-air mixture at a pressure below 2000KPa, spark igniting the pilot charge at or near top dead centre and then, early in the power stroke, admitting a second charge of air-fuel mixture compressed to a pressure greater than 2000KPa for ignition by the burning pilot charge. |
