Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Patent
1981-03-05
1982-09-21
Burns, Wendell E.
Internal-combustion engines
Charge forming device
Exhaust gas used with the combustible mixture
137DIG8, F02M 2506
Patent
active
043501362
ABSTRACT:
An exhaust gas recirculation valve including a passage structure defining therein an exhaust gas recirculation passage having provided therein an orifice. A movable valve member cooperates with the orifice for metering the exhaust gas flow therethrough. A tubular wall member projects into the exhaust gas recirculation passage and defines an axial bore having one end thereof facing to the valve member. A valve stem has one end thereof connected to the valve member and the other end disposed outside of the passage structure and connected to an actuator. The valve stem extends through the axial bore in the tubular wall member and a guide opening in the passage structure. The tubular member projects in the exhaust gas recirculation passage such a distance that when the valve member is into a position in which the volume of the exhaust gas flowing through the valve is maximized, the valve member is disposed close to but spaced from the one end of the axial bore in the tubular wall member, and the one end of the axial bore in the tubular wall member has a diameter at most equal to the maximum diameter of the valve member.
REFERENCES:
patent: 3762384 (1973-10-01), Day et al.
patent: 4198030 (1980-04-01), Jackson
patent: 4202524 (1980-05-01), Brakebill
Burns Wendell E.
Hitachi , Ltd.
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