Intake passage for internal combustion engine

Details Intake passage for internal combustion engine Intake passage for internal combustion engine

1984-03-20

1986-05-27

Feinberg, Craig R.

Internal-combustion engines

Multiple cylinder

123393, F02B 7513

Patent

active

045908958

ABSTRACT:
A part of intake passages is made into an arcuate form extending around a surge tank. A rotatable drum is provided in the surge tank to change the length of the arcuate part of the passages. The rotatable drum is controlled by a control mechanism which is operated in accordance with the engine speed for example, so that the effective length of the intake passages may be changed to keep synchronization between the natural frequency of the intake system and the frequency of the pressure wave caused by the reciprocal motion of the piston of the engine.

REFERENCES:
patent: 2835235 (1958-05-01), Gassmann
patent: 3177854 (1965-04-01), Garcea
patent: 3557898 (1971-01-01), Emery et al.
patent: 4446823 (1984-05-01), Bessmo

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