发明名称 |
Non-annular piston bowl for two-valve engines using offset injectors |
摘要 |
A piston having an offset piston bowl for use in an engine having a correspondingly offset fuel injector, wherein the piston bowl has a non-circular or non-annular shape. The non-annular bowl shape is contoured to permit increased spray plume length, avoiding impingement. The bowl is especially useful in a diesel engine having two-valves per cylinder, wherein the injector must be mounted in an offset location because a central region of the cylinder head is occupied by two proximal valve ports. The bowl has a raised inner portion surrounded by a concave outer portion. A peak or apex of the raised inner portion is located closer to a peripheral wall of the concave outer portion at a "short" side of the bowl than at a "long" side of the bowl.
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申请公布号 |
US5970946(A) |
申请公布日期 |
1999.10.26 |
申请号 |
US19970972856 |
申请日期 |
1997.11.18 |
申请人 |
SHEA, PATRICK R.;QUINTON, AARON S.;LE, NHA T. |
发明人 |
SHEA, PATRICK R.;QUINTON, AARON S.;LE, NHA T. |
分类号 |
F02B3/06;F02B23/06;(IPC1-7):F02B23/08 |
主分类号 |
F02B3/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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