Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Patent
1997-10-21
1999-08-17
Wolfe, Willis R.
Internal-combustion engines
Charge forming device
Exhaust gas used with the combustible mixture
12356815, 1235682, 606052, F02M 2507
Patent
active
059378344
ABSTRACT:
An exhaust gas recirculation apparatus capable of preventing the occurrence of dewing inside an exhaust gas recirculation pipe after the engine stop and corrosion inside the exhaust gas recirculation pipe, an EGR valve, a reed valve, etc., and eventually capable of improving engine durability and engine life. This exhaust gas recirculation apparatus includes an exhaust gas recirculation pipe having an EGR valve for controlling an exhaust recirculation quantity and connected between an exhaust passage and an intake passage in an internal combustion engine equipped with a supercharger, and a check valve for preventing intake air from flowing into the exhaust gas recirculation pipe when an internal pressure of the exhaust gas recirculation pipe is lower than an internal pressure of the intake passage, disposed at the junction between the exhaust gas recirculation pipe and the intake passage, wherein the check valve has a clearance for communication between the exhaust gas recirculation pipe and the intake passage while the engine stops.
REFERENCES:
patent: 1051690 (1913-01-01), Colwell
patent: 1541583 (1925-06-01), Merz
patent: 3971351 (1976-07-01), McKee
patent: 4027635 (1977-06-01), Goto et al.
patent: 4206606 (1980-06-01), Yamada
patent: 4222356 (1980-09-01), Ueda et al.
patent: 4237837 (1980-12-01), Toda et al.
patent: 4329965 (1982-05-01), Ueda et al.
patent: 4796594 (1989-01-01), Duret
patent: 5682746 (1997-11-01), Von Hoerner
Isuzu Motors
Wolfe Willis R.
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