Internal-combustion engines – Noncompression
Patent
1977-06-06
1978-12-12
Cox, Ronald B.
Internal-combustion engines
Noncompression
123 32SP, F02B 300
Patent
active
041291000
ABSTRACT:
Disclosed is an internal combustion engine comprising a main chamber and an auxiliary chamber which are interconnected with each other via a connecting passage. The connecting passage is tangentially connected to the inner wall of the auxiliary chamber. A raised portion is formed on the inner wall of the auxiliary chamber at a position located opposite to the inner wall to which the connecting passage is tangentially connected with respect to the axis of the auxiliary chamber. A recess is formed on the inner wall beneath the raised portion. The nozzle of a fuel injector is directed to the recess so as to form a rich air-fuel mixture therein. The spark gap of a spark plug is located in the recess for igniting the righ air-fuel mixture therein. An additional passage communicating the recess with the main chamber is formed in the cylinder head so that gas forced into the recess from the main chamber through the additional passage at the time of the compression stroke directly impinges upon the insulator covering the central electrode of the spark plug for diluting the rich air-fuel mixture formed around the insulator of the central electrode.
REFERENCES:
patent: 4038959 (1977-08-01), Takizawa
Cox Ronald B.
Toyota Jidosha Kogyo Kabushiki Kaisha
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