Resonator conduit system for introducing intake gases in interna

Details Resonator conduit system for introducing intake gases in interna Resonator conduit system for introducing intake gases in interna

1979-07-06

1981-11-17

Myhre, Charles J.

Internal-combustion engines

Multiple cylinder

123 52MB, F02B 2700

Patent

active

043004881

ABSTRACT:
A multi-space intake gas conduit system for a multi-cylinder internal combustion piston engine has at least two separate resonator vessels each associated with a separate cylinder group formed of predetermined cylinders of the engine. Each resonator vessel is coupled to intake openings of the cylinders forming the cylinder group associated with the respective resonator vessel. To each resonator vessel there is coupled a resonance tube and there is further provided a damper vessel interconnecting the resonance tubes. The resonator vessels and resonance tubes associated with separate cylinder groups form separate acoustic oscillating systems tuned to substantially the same natural frequencies. The resonance tubes coupled to different resonator vessels are of different lengths; the length of the shortest resonance tube is at least 0.6 times the length of the longest resonance tube and the diameter of a circle having an area identical to the cross-sectional area of the shortest resonance tube is at least 0.8 times the diameter of a circle having an area identical to the cross-sectional area of the longest resonance tube. Further, the volume of the resonator vessel coupled to the shortest resonance tube is at the most 1.7 times the volume of the resonator vessel coupled to the longest resonance tube.

REFERENCES:
patent: 2740389 (1956-04-01), Reyl
patent: 3015322 (1962-01-01), Rohm
patent: 3796048 (1974-03-01), Annus et al.
patent: 3990415 (1976-11-01), Malphettes
patent: 4064696 (1977-12-01), Cser
patent: 4183332 (1980-01-01), Hofbauer et al.

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