Method and apparatus for reducing the operating compression rati

Internal-combustion engines – Precombustion and main combustion chambers in series – Having fluid whirling means

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123298, 123305, 123281, 123279, 123275, 123276, 123273, 123268, 123259, 123256, 123254, 123 1A, 123143A, 123286, F02B 300, F02B 3300

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044441665

ABSTRACT:
A method and apparatus for combusting diesel, gasoline, kerosene, alcohol and other compression ignition fuels in either direct or indirect injection compression auto ignition internal combustion engines which enables such engines to operate at low compressions. The apparatus includes an ignition chamber which functions to receive a portion of the incoming fuel charge thereby concentrating such portion in an area separate from the auxiliary or primary combustion chambers. The ignition chamber is predominantly in convective heat exchange relationship with the primary combustion chamber and has at least one opening therein designed and oriented with respect to the interior thereof to create a nonturbulent circular air flow therein during the compression stroke of the engine which will cause the lighter components of the fuel charge directed therein to be concentrated adjacent a central zone where such lighter and generally more volatile components of the fuel charge will be ignited by the heat therein to thereby initiate a controlled ignition of the remaining fuel in the ignition chamber. The amount of fuel in the fuel charge directed into the ignition chamber will remain generally constant regardless of the load on the engine and its operating speed with the amount of such fuel charge depending on the engine compression ratio and the relative sizes of the ignition and combustion chambers. The amount of such a fuel charge should be as great as possible while still insuring complete fuel combustion therein. The amount of heat released within the ignition chamber compensates for the heat lost through operating a lower compressions and is sufficient to ignite the fuel in the main burning or combustion chamber.

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