Catalyst heater with staged exhaust exotherm

Details Catalyst heater with staged exhaust exotherm Catalyst heater with staged exhaust exotherm

1994-07-05

1996-11-05

Heyman, Leonard E.

Power plants

Internal combustion engine with treatment or handling of...

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

60274, 60303, 60317, F01N 310

Patent

active

055705766

ABSTRACT:
Internal combustion engine exhaust gas is combined with heat energy emitted by an exhaust gas heater in a staged manner through an interface that diverts portions of the exhaust gas into a number of mixing stages with the heat energy, so that exhaust gas temperature may be elevated to levels supporting exothermic oxidation of exhaust gas elements, contributing additional heat energy to that emitted by the heater to provide for rapid catalytic converter heating following a coldstart of the engine.

REFERENCES:
patent: 3775064 (1973-11-01), Berger et al.
patent: 4538413 (1985-09-01), Shinzawa et al.
patent: 4541239 (1985-09-01), Tokura et al.
patent: 4604868 (1986-08-01), Nomoto et al.
patent: 4610138 (1986-09-01), Shinzawa et al.
patent: 4858431 (1989-08-01), Leonhard et al.
patent: 5082478 (1992-01-01), Oono et al.
patent: 5105621 (1992-04-01), Simmons et al.
patent: 5320523 (1994-06-01), Stark
patent: 5417059 (1995-05-01), Hartel et al.

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