Internal combustion engine siamese port type intake system const

Details Internal combustion engine siamese port type intake system const Internal combustion engine siamese port type intake system const

1986-11-04

1988-01-19

Cross, E. Rollins

Internal-combustion engines

Means to whirl fluid before, upon, or after entry into...

Having multiple oxidant inlet means

123442, F02B 1500

Patent

active

047198869

ABSTRACT:
An intake system construction for an internal combustion engine having a generally straight first intake port, a generally helical second intake port, both intake ports opening to one combustion chamber, and a common intake passage for supplying fuel-air mixture to the two intake ports. A control valve is fitted in the first intake port for selectively throttling the first intake port at low load operation of the engine, and a deflection valve is fitted in the commmon intake passage for selectively constricting intake flow through the common intake passage to deflect the flow toward the second intake port and away from the first intake port at low load operation of the engine, so that fuel accumulation on the cotrol valve closed at low load operation of the engine is avoided.

REFERENCES:
patent: 4378000 (1983-03-01), Moriya
patent: 4550699 (1985-11-01), Okumura et al.
patent: 4570590 (1986-02-01), Kawai et al.

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