| 摘要 |
A vaporizer chamber includes a coil therein, the coil having extensions extending into the exhaust pipe of the engine, the exhaust gases passing through the coil and heating the interior of the chamber. Fuel is delivered to the vaporizer chamber, and vaporized there when the exhaust gases are heated. A thermostat unit is mounted on the exhaust pipe, and when heated, shifts a valve to direct the fuel to the vaporizer chamber, instead of to the carburetor. This shifting is gradual. A throttle controls the flow of vaporized fuel to the outlet of the carburetor. The usual accelerator pedal is operative for controlling the throttle for the vaporized fuel in unison with the usual throttle provided in the carburetor. When starting the engine cold, it is fed atomized fuel from the carburetor, and when the engine warms up, the fuel to the carburetor is reduced, and that to the vaporizer chamber is increased, until only vaporized fuel is so fed, and in each case the delivery of fuel to the engine is controlled by the corresponding throttle in response to actuation of the same accelerator pedal.
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