发明名称 |
Rotary-body throttle valve for spark ignition internal combustion engine |
摘要 |
The invention makes vortices generated at the time opening a valve with the intermediate degree of opening small in a rotary-body type throttle valve of a spark ignition internal combustion engine so as to reduce the flow resistance. A rotary-body type throttle valve for a spark ignition internal combustion engine in which the valve comprises a valve casing 11 in the inside of which an intake passage 12a, 12b is formed with a rotary-body recess portion 12d which adopts a line intersecting a central axis 12c of the intake passage as an axis thereof being formed in the midst of the intake passage 12a, 12b, and a valve element 13 in a rotary-body shape which is rotatably fitted into the rotary-body recess portion 12d of the valve casing 11, and a communication passage 15 which makes'an upstream intake passage 12a and a downstream intake passage 12b sandwiching the rotary-body recess portion 12d of the valve casing 11 communicate with each other is formed in the valve element 13. A through hole 18 which is directed from the communication passage 15 of the valve element 13 in a direction intersecting a central axis 15a of the communication passage 15 and reaches only one of rotary outer surfaces of the valve element 13 is formed in the valve element 13. <IMAGE> |
申请公布号 |
EP1559885(A3) |
申请公布日期 |
2005.11.16 |
申请号 |
EP20050008564 |
申请日期 |
2001.03.15 |
申请人 |
HONDA GIKEN KOGYO KABUSHIKI KAISHA |
发明人 |
SUZUKI, OSAMU;TAKAHASHI, YASUSHI |
分类号 |
F02D9/10;F02D9/16;F02M9/08 |
主分类号 |
F02D9/10 |
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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