发明名称 |
Variable compression ratio mechanism for reciprocating internal combustion engine |
摘要 |
A variable compression ratio mechanism for a reciprocating engine includes a connecting rod split into upper and lower connecting rod portions linked to each other through a first connecting pin. A rockable arm is oscillatingly linked at one end to the lower connecting rod portion through a second connecting pin. A control mechanism shifts the center of oscillating motion of the rockable arm to vary a compression ratio of the engine. A piston stroke is set to be greater than two times a crank radius of a crank, irrespective of variations in the compression ratio. A linkage is dimensioned and laid out, so that its crankpin load is less than a crankpin load produced by a linkage that the crankpin is located on a perpendicular line at a substantially midpoint of a line segment between and including the centers of the first and second connecting pins.
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申请公布号 |
US2001039929(A1) |
申请公布日期 |
2001.11.15 |
申请号 |
US20010813891 |
申请日期 |
2001.03.22 |
申请人 |
NISSAN MOTOR CO, LTD. |
发明人 |
ARAI TAKAYUKI;MOTEKI KATSUYA;HIYOSHI RYOSUKE |
分类号 |
F02B75/02;F02B75/04;F02D15/02;F02F3/00;(IPC1-7):F02B75/04 |
主分类号 |
F02B75/02 |
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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