Combustion engine having fuel cut-off at idle speed and compressed air starting and method of operation
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United States of America Patent
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May 3, 1988
Issued Date -
N/A
app pub date -
Apr 30, 1987
filing date -
Oct 15, 1985
priority date (Note) -
Expired
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Abstract
A rotary internal combustion engine which includes a lobed combustion rotor and a similar compression rotor on a common shaft and firing chambers external to the combustion and compression cavities. The compression rotor compresses excess amounts of air during normal operation which is stored in a tank. During operation, the rotational speed of the engine shaft and the position of an accelerator are sensed. The engine may be run in a non-idle mode by inhibiting the flow of fuel and air to the firing chambers and inhibiting the spark plugs when an idle speed accelerator position and an idle engine speed are sensed, to shut down the engine. When the accelerator is afterwards pressed, the engine is restarted by valving stored compressed air to the combustion cavity to cause the combustion rotor to turn.
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