| 摘要 |
PCT No. PCT/AU82/00086 Sec. 371 Date Jan. 21, 1983 Sec. 102(e) Date Jan. 21, 1983 PCT Filed May 28, 1982 PCT Pub. No. WO82/04285 PCT Pub. Date Dec. 9, 1982.Stratification of charge in a four stroke internal combustion engine in which a stream of air issues from a duct (46) and is directed tangentially into a cylinder (2) to circulate about the cylinder adjacent to the cylinder walls. The air is admitted to the cylinder only while the exhaust valve (42) is open. The air circulates adjacent to the cylinder walls during the exhaust stroke and at least a portion thereof remains adjacent the cylinder walls during the subsequent induction and compression strokes. The combustible charge is admitted generally centrally of the cylinder and remains stratified with respect to the circulating air which contains the combustible mixture as a relatively concentrated central core whereby reliable ignition is achieved. The method may also be applied to two-stroke engines and to diesel engines. |
