|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||60/278 ; 60/290 ; 123/119A|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 20 인용 특허 : 0|
An engine has an air injection system injecting air into the exhaust system to reduce emissions. The injection is scheduled by a bypass valve that normally permits injection, but bypasses or dumps the air as a function of a carburetor ported vacuum signal that is also used to control exhaust gas recirculation. A control is provided to maintain air injection for a short period during certain engine idle conditions, but dumping of the air after this period. An engine deceleration override is provided to dump the air when this condition exists, to prevent b...
An airflow control system for an internal combustion engine having an engine driven air pump with a discharge outlet delivering air to the engine, a selectively operable air bypass valve associated with the outlet when operable movable to a dump position diverting air from the outlet, the valve being rendered operable in response to engine manifold vacuum acting thereon at engine deceleration vacuum levels, the engine having a carburetor providing a throttle valve ported vacuum signal varying from an atmospheric pressure level to manifold vacuum levels a...