发明名称 |
DISPOSITIF DE COMMANDE DE SOUPAPE A REDUCTION DE BRUIT |
摘要 |
<p>A valve control device corrects a change rate of an opening degree of a valve in accordance with engine rotation speed when deposit elimination operation is performed. The valve control device corrects an inclination between a positive maximum opening degree and a negative maximum opening degree of the valve in accordance with the engine rotation speed when the deposit elimination operation is performed. Thus, when the engine rotation speed is low and a noise accompanying the deposit elimination operation becomes more audible, the change rate of the opening degree of the valve is reduced. As a result, the noise accompanying the deposit elimination operation is reduced and annoyance for vehicle occupants is reduced.</p> |
申请公布号 |
FR2884578(B1) |
申请公布日期 |
2011.03.11 |
申请号 |
FR20060000587 |
申请日期 |
2006.01.23 |
申请人 |
DENSO CORPORATION;NIPPON SOKEN INC |
发明人 |
TAKEMOTO EIJI;KATSUNO MASATO;FUJITA TATSUYA;NANBA KUNIO;NAKAYAMA YOSHINORI |
分类号 |
F16K29/00;F02D21/08;F02M25/07;F16L58/00 |
主分类号 |
F16K29/00 |
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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