Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Reexamination Certificate
2007-08-28
2007-08-28
Wolfe, Jr., Willis R. (Department: 3747)
Internal-combustion engines
Charge forming device
Exhaust gas used with the combustible mixture
C123S568170
Reexamination Certificate
active
11281022
ABSTRACT:
A system for controlling the mixture of an air flow and an exhaust gas flow in an engine is disclosed generally comprising an air conduit for the inlet air, which has an exhaust gas inlet passing through the wall thereof for introducing recirculating exhaust gas into the conduit, and a sleeve having an inlet end through which air enters the sleeve and an outlet end through which air exits the sleeve into the conduit, where the sleeve is movable along the conduit to vary the extent to which the outlet end thereof occludes the exhaust gas inlet, thereby regulating the introduction of exhaust gas into the air conduit, which in some embodiments, is completely closed off. In some embodiments, the outlet end of the sleeve is reduced, and certain embodiments include a streamlined body to regulate the air exiting the sleeve.
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Berggren Gustav
Holm Thomas
Torbjornsson Carl-Adam
Wangelin Roland
Welin Hans
Haldex Hydraulics AB
St. Onge Steward Johnston & Reens LLC
Wolfe, Jr. Willis R.
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