发明授权
- 专利标题： Internal-combustion engine, with system for variable actuation of the intake valves provided with a three-way electric valve having three levels of supply current, and method for controlling said engine
- 专利标题（中）： 内燃机，具有用于可变致动的系统，其具有设有三电平供电电流的三通电动阀，以及用于控制所述发动机的方法
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申请号： US14271782申请日： 2014-05-07
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公开(公告)号： US09127576B2公开(公告)日： 2015-09-08
- 发明人: Sergio Stucchi , Raffaele Ricco , Onofrio De Michele , Marcello Gargano , Mitzi Puccio , Domenico Lepore
- 申请人： C.R.F. Societa Consortile per Azioni
- 申请人地址： IT Orbassano (Turin)
- 专利权人： C.R.F. Societá Consortile per Azioni
- 当前专利权人： C.R.F. Societá Consortile per Azioni
- 当前专利权人地址： IT Orbassano (Turin)
- 代理机构： Heslin Rothenberg Farley & Mesiti P.C.
- 代理商 Victor A. Cardona, Esq.
- 优先权： EP13167181 20130509
- 主分类号： F01L9/02
- IPC分类号： F01L9/02 ; F01L13/00
摘要：
An internal-combustion engine includes a three-way, three-position control valve with an inlet communicating with a pressurized-fluid chamber and with a hydraulic actuator of an intake valve, and two outlets communicating, respectively, with the actuator of the other intake valve and with said exhaust channel. The control valve has a first position, in which the inlet communicates with both of the outlets, a second position, in which the inlet communicates only with the outlet connected to the actuator of an intake valve and does not communicate, with the outlet connected to the exhaust channel, and a third position, in which the inlet does not communicate with the two outlets. The control valve has an electric actuator supplied only at three different values of electric current to bring the valve into the three positions.
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