发明名称 |
Internal combustion engine with auxiliary combustion chamber |
摘要 |
<p>An internal combustion engine (1) includes a main combustion chamber (2) and a small auxiliary combustion chamber (15). The main chamber (2) is formed by a cylinder, the undersurface of a cylinder head (3), and the crown (5a) of a piston (5). A main ignition unit (13) is disposed in the cylinder head (3), including a main body (16) and a spark plug (17). The auxiliary chamber (15) is formed within the main ignition unit (17). The main (2) and auxiliary chambers (15) are connected via a communication passage (18). The piston crown (5a) includes a cavity (14). When a fuel injection valve (12) sprays fuel into the cavity (14) on compression stroke, a tumble flow of fuel gas is generated to locally form a relatively rich air-fuel mixture near the communication passage (18). The air-fuel mixture partly flows into the auxiliary chamber (15) as the piston (5) travels upwardly. The air-fuel mixture in the auxiliary chamber (15) is ignited by the spark plug (17) so that a combustion flame propagates into the main chamber (2).</p> |
申请公布号 |
EP1577517(A1) |
申请公布日期 |
2005.09.21 |
申请号 |
EP20050005163 |
申请日期 |
2005.03.09 |
申请人 |
NISSAN MOTOR COMPANY, LIMITED |
发明人 |
KUBO, MASAAKI;NODA, TORU;HOTTA, ISAMU |
分类号 |
F02B17/00;F02B19/12;F02B19/18;F02B23/00;F02B23/06;F02B23/10;F02B75/12;F02D15/00;F02D41/02;F02F3/26;(IPC1-7):F02B19/18 |
主分类号 |
F02B17/00 |
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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