Exhaust system affecting suction of secondary air by use of larg

Details Exhaust system affecting suction of secondary air by use of larg Exhaust system affecting suction of secondary air by use of larg

1976-09-07

1979-04-17

Croyle, Carlton R.

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

60305, 60312, F02B 7510

Patent

active

041493788

ABSTRACT:
An exhaust line including an exhaust pipe assembly, a reactor for oxidizing hydrocarbons and carbon monoxide, a main muffler and a mechanism for drawing secondary air from the atmosphere into the exhaust line upstream of the reactor based on the pulsation of the exhaust pressure, wherein a front tube of the exhaust pipe assembly for passing the exhaust gas from the engine to the reactor has a smaller cross-sectional area than a center tube connecting the reactor to the main muffler, so that the pulsation is of a great magnitude even at an engine speed where the pulsation is in an anti-resonance state.

REFERENCES:
patent: 2829731 (1958-04-01), Clayton
patent: 3064417 (1962-11-01), Tryhorn et al.
patent: 3170280 (1965-02-01), Rees
patent: 3254484 (1960-06-01), Kopper
patent: 3662541 (1972-05-01), Sawada et al.
patent: 3946558 (1976-03-01), Beekhuis
patent: 3979905 (1976-09-01), Masaki et al.
Smith, Exhaust and Intake Systems, G. T. Foulis & Co., London, 1963, p. 106.
Annand et al., Gas Flow in the I.C.E., G. T. Foulis & Co., London, 1974, pp. 96-97, 103.

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