Internal-combustion engines – Two-cycle – Whirl through piston-controlled ports
Reexamination Certificate
2005-10-25
2005-10-25
Yuen, Henry C. (Department: 3747)
Internal-combustion engines
Two-cycle
Whirl through piston-controlled ports
C123S179180
Reexamination Certificate
active
06957633
ABSTRACT:
An interlocking lever having first and second cam faces is mounted on a throttle valve stem, and a throttle valve is arbitrarily opened to perform start-up in a state in which the first cam face makes contact with the choke valve lever and the interlocking lever is stopped during low-temperature start-up with the choke valve closed. After the choke valve has been returned to the fully open position, the throttle valve alone is opened with a small degree of opening to perform low-load operation; and in the mid- and high-load region, the interlocking lever integrally turns with the throttle valve, the second cam face pushes the air valve lever, and the throttle valve and air valve are caused to open and close proportionally.
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Araki Satoru
Toda Mamoru
Ali Hyder
Orrick Herrington & Sutcliffe LLP
Yuen Henry C.
Zama Japan
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