Internal-combustion engines – Charge forming device – Auxiliary air or oxygen added to combustible mixture
Reexamination Certificate
2005-08-16
2005-08-16
Yuen, Henry C. (Department: 3747)
Internal-combustion engines
Charge forming device
Auxiliary air or oxygen added to combustible mixture
C261S035000
Reexamination Certificate
active
06928996
ABSTRACT:
A stratified scavenging mechanism of a two-stroke internal combustion engine including a carburetor for supplying and controlling an air and fuel mixture to the engine, an air intake passage in which a throttle valve is disposed, an air passage provided on a scavenging air supply body, an air control valve disposed in the air passage for opening and closing the air passage, and an air valve lever operably connected to a throttle valve lever. The scavenging air supply body is carried by the carburetor. More than one air passage may be provided, and a separate air control valve is preferably provided for each air passage.
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Ali Hyder
Reising Ethington Barnes Kisselle P.C.
Walbro Japan, Inc.
Yuen Henry C.
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