发明名称 |
ABGASRÜCKFUHRÜNGSVENTIL MIT VOLUMENSTROM PROPORTIONALER INTEGRIERTER RÜCKKOPPLUNG |
摘要 |
A control valve for an EGR system employs a variable pressure actuator connected to a valve for metering EGR flow and a differential pressure valve connected to supply actuation pressure to the actuator. The differential pressure valve incorporates a proportional solenoid connected to a pressure balancing piston which receives EGR pressure on one side and exhaust flow pressure on the other. The piston is connected to a shaft having an orifice positionable adjacent a pressure source in a first position and a pressure vent in a second position, an outlet of the orifice communicating with the pressure actuator. EGR control is accomplished by providing a signal to the proportional solenoid which shifts the pressure balance point for the piston. |
申请公布号 |
DE69825183(T2) |
申请公布日期 |
2005.08.11 |
申请号 |
DE1998625183T |
申请日期 |
1998.03.11 |
申请人 |
ALLIEDSIGNAL INC., MORRISTOWN |
发明人 |
ARNOLD, DON |
分类号 |
F02B37/00;F02B37/013;F02B37/24;F02B39/14;F02M25/07 |
主分类号 |
F02B37/00 |
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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