Systems for actuating EGR valves

Full Title

Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems > Systems for actuating EGR valves

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• F02M 26/53 using electric actuators, e.g. solenoids
• F02M 26/55 using vacuum actuators
• F02M 26/59 using positive pressure actuators; Check valves therefor
• F02M 26/63 the EGR valve being directly controlled by an operator (the EGR valve being operated together with an intake air throttle F02M26/64)
• F02M 26/64 the EGR valve being operated together with an intake air throttle