Direct fuel injection type spark ignition internal combustion en

Details Direct fuel injection type spark ignition internal combustion en Direct fuel injection type spark ignition internal combustion en

1989-01-30

1990-09-25

Dolinar, Andrew M.

Internal-combustion engines

Precombustion and main combustion chambers in series

Having combustible mixture forming means

123260, 123302, 123305, 123661, F02B 2310

Patent

active

049586041

ABSTRACT:
A direct fuel injection type spark ignition internal combustion engine includes a combustion chamber including a shallow dish portion and a deep dish portion formed in a piston top portion, a spark plug located close to an axis of the combustion chamber, and a fuel injection nozzle located at a radially outermost portion of the combustion chamber. With this arrangement, a good ignition characteristic in a low engine load operation and an improved power characteristic in a high engine load operation are obtained. Further, due to that arrangement of the spark plug, the flame propagation distance is made as short as possible.

REFERENCES:
patent: 4009702 (1977-03-01), Mayer
patent: 4522173 (1985-06-01), Agache
patent: 4852525 (1989-08-01), Ishida

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