Torch-ignition internal combustion engine

Details Torch-ignition internal combustion engine Torch-ignition internal combustion engine

1977-03-29

1979-01-02

Myhre, Charles J.

Internal-combustion engines

Valve

Rotary

123 32SP, 123 32ST, 123148C, 123191SP, F02B 1912, F02B 2308

Patent

active

041322126

ABSTRACT:
A torch-ignition internal combustion engine has a trap chamber formed in the engine cylinder head and communicated with a main combustion chamber through a plurality of torch apertures. An intake port extends through the cylinder head to the main combustion chamber to feed a charge of an air-fuel mixture thereinto when an intake valve is open on an intake stroke of the engine. At least one of the torch apertures is positioned and directed relative to the downstream end of the intake port such that a part of the mixture charge to the main combustion chamber flows through the one torch aperture into the trap chamber during the intake stroke of the engine to simultaneously force out the residual gases produced during a preceding combustion stroke through the other torch aperture or apertures into the main combustion chamber. A part of the mixture fed into the main combustion chamber is forced through the torch apertures into the trap chamber on a succeeding compression stroke to urge any residual combustion gases in the main and trap chambers toward the inner part of the trap chamber remote from the main combustion chamber. A spark plug is mounted on the cylinder head such that the plug electrodes are disposed within the main combustion chamber adjacent to that end of one of the torch apertures which is open to the main combustion chamber to cause an initial spark-ignition of the mixture adjacent to the plug electrodes. The spark-ignition produces a fire which propagates into the trap chamber through the torch aperture adjacent to the plug electrodes whereby the mixture in the trap chamber is burnt to produce a combustion flame which spurts through all the torch apertures into the main combustion chamber to form strong torch jets for the torch-ignition of the mixture in the main combustion chamber.

REFERENCES:
patent: 1555809 (1925-09-01), Burtnett
patent: 3776212 (1973-12-01), Karlowitz
patent: 3809042 (1974-05-01), Hosho et al.
patent: 4029075 (1977-06-01), Noguchi et al.
patent: 4038959 (1977-08-01), Takaizawa et al.
patent: 4043309 (1977-08-01), Kato et al.

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