Induction system of four stroke internal combustion engine

Details Induction system of four stroke internal combustion engine Induction system of four stroke internal combustion engine

1981-12-10

1984-10-09

Lazarus, Ronald H.

Internal-combustion engines

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

Air or combustible mixture entering the combustion chamber...

123308, F02M 1307, F02B 1700

Patent

active

044755090

ABSTRACT:
An induction system for an internal combustion engine having main induction passages and relatively small cross-sectional area auxiliary induction passages for delivering a charge from a carburetor to the combustion chambers. A control valve arrangement is provided so that the engine charge requirement at idle and low load are supplied through the small auxiliary induction passages so as to increase turbulence in the combustion chamber at the time of combustion. The inlet to the auxiliary induction passage is disposed in the path of fuel discharge from the idle circuit of the associate carburetor so as to improve mixture distribution and promote smooth running. The inlet for the auxiliary induction passage is also positioned at a higher point than the control valve so as to reduce the likelihood of liquid fuel being drawn into the auxiliary induction system. The inlet for the auxiliary system is also heated to improve vaporization.

REFERENCES:
patent: 2028585 (1936-01-01), Blake
patent: 4186706 (1980-02-01), Matsumoto
patent: 4194474 (1980-03-01), Endo

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