发明授权
US08082908B2 2-valve, 2-plug, 2-intake lean burn engine with squish flow with about 2/3 the combustion chamber under the exhaust valve
失效
2阀,2插头,2进气稀燃燃烧发动机,排气阀下方有约2/3的燃烧室
- 专利标题: 2-valve, 2-plug, 2-intake lean burn engine with squish flow with about 2/3 the combustion chamber under the exhaust valve
- 专利标题(中): 2阀,2插头,2进气稀燃燃烧发动机,排气阀下方有约2/3的燃烧室
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申请号: US12319982申请日: 2009-01-14
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公开(公告)号: US08082908B2公开(公告)日: 2011-12-27
- 发明人: Michael A. V. Ward
- 申请人: Michael A. V. Ward
- 代理机构: Burns & Levinson LLP
- 代理商 Jerry Cohen
- 主分类号: F02D41/34
- IPC分类号: F02D41/34
摘要:
An ignition-engine system for internal combustion engines having two-valves per cylinder (100) with a larger intake valve (103) and a smaller exhaust valve (104) in a longitudinal layout with a single camshaft (118) operating bucketed valve stems 103a and 104a that are vertical, with the valves making up essentially the roof of the combustion chamber and having a volume essentially under the intake valve of approximately 35% of the combustion chamber and a volume under the exhaust valve of approximately 65%, and two spark plugs per cylinder with plugs (102a) and (102b) located at the edge of two opposite squish-zones (105) of a compact combustion chamber, wherein the air-flow near TC is channeled between the two large squish-lands (101a) and (101b) wherein the cross-section of the channel is approximately constant of average width “W’, resulting in a relatively more compact combustion chamber having squish-lands take up approximately ⅓ of the projected bore area of the cylinder and the more compact channel to be approximately ⅔ of the bore area, wherein as the piston approaches ignition it provides an approximately orthogonal-to-the-main-flow (109) through the action of the squish walls which have a clearance of only about 0.06 inches with the piston at top center for improving knocking by moving the spark-flame kernel toward the hotter exhaust valve.