Internal combustion engine intake system having jet-producing no

Details Internal combustion engine intake system having jet-producing no Internal combustion engine intake system having jet-producing no

1978-11-20

1981-09-01

Lazarus, Ronald H.

Internal-combustion engines

Combustion chamber means combined with air-fuel mixture...

Air or combustible mixture entering the combustion chamber...

123308, F01N 310

Patent

active

042865611

ABSTRACT:
An extra induction passage extends to an intake port for each combustion chamber to induct air, fuel or recirculated exhaust gas by utilizing vacuum in the intake port. This passage terminates at a jet-producing nozzle which is located near the end of a valve guide for an ordinary intake valve and directed towards a peripheral region of the inlet opening of the combustion chamber. Preferably, the extra induction passage extends outside of the valve guide, and a valve which acts in synchronism with the intake valve is provided to this passage or the nozzle. A gas jet from the nozzle, particularly under low-load conditions, promotes homogenization of a combustible gas mixture and causes a turbulent or swirling motion of the mixture in the combustion chamber, so that combustion proceeds rapidly and smoothly even though the mixture comprises large excess air or large amount of exhaust gas.

REFERENCES:
patent: 2152028 (1939-03-01), Church
patent: 3331361 (1967-07-01), Baudry
patent: 3408992 (1968-11-01), Seggern
patent: 3678905 (1972-07-01), Diehl
patent: 3688752 (1972-09-01), Baudry
patent: 3977188 (1976-08-01), Arnaud
patent: 4064849 (1977-12-01), Nagasawa
patent: 4133322 (1979-01-01), Nakamura
patent: 4184328 (1980-01-01), Rezy

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