Patent ID: 6047690
Filing Date: 2000-04-11
Classification: F02B,F02M

Abstract:
An exhaust gas recirculation valve for installation between an air intake and an exhaust of an engine comprising a housing having a first, second, and third sides, a first bore opening through the first side for connection with the air intake, a second bore opening through the second side for receiving exhaust gas from the exhaust, a third bore opening through the first side for connection with the air intake, and a fourth bore opening through the third side and passing in succession through the first bore, the second bore and the third bore; a valve stem positioned in the fourth bore and extending out of the third side of the housing; a valve seat in the fourth bore at the opening of the second bore to the third bore; an annular seal mounted in the fourth bore at the opening of the first bore to the second bore; a valve head on the valve stem within the second bore and normally in engagement with the valve seat; a sleeve mounted on the valve stem and sealingly engaged with the seal to substantially seal the first bore from the second bore; actuating means mounted on the housing and connected to the valve stem, which, on actuation, moves the valve stem to disengage the valve head from the valve seat.