Exhaust gas recirculation device for engine

Details Exhaust gas recirculation device for engine Exhaust gas recirculation device for engine

2008-04-08

2008-04-08

Kamen, Noah P. (Department: 3747)

Internal-combustion engines

Cooling

With jacketed head and/or cylinder

C123S568110, C123S568140

Reexamination Certificate

active

07353783

ABSTRACT:
An exhaust gas recirculation device for an engine having a cylinder head with a suction port and an exhaust port, provided with a mechanism for recirculating a portion of exhaust gas to the suction side of the cylinder head, comprises a connection hole is opened through a wall of the cylinder head disposed between the suction port and the exhaust port. The connection hole is bored vertically slantwise. The connection hole at the suction side is opened along the direction of swirls of sucked air. A throttle is disposed in at least either a suction flow passage communicating with the suction port or an exhaust flow passage communicating with the exhaust port so that the opening area of the suction flow passage or the exhaust flow passage can be adjusted by the throttle.

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