Power plants – Internal combustion engine with treatment or handling of... – Having means analyzing composition of exhaust gas
Patent
1995-05-05
1998-01-27
Hart, Douglas
Power plants
Internal combustion engine with treatment or handling of...
Having means analyzing composition of exhaust gas
123703, F01N 318
Patent
active
057111480
ABSTRACT:
A number of embodiments of feedback control systems for two-cycle, internal combustion engine management systems. Each embodiment employs an exhaust system sensor which senses the exhaust gases by drawing exhaust gases from the exhaust of the engine. In some instances this is done directly from the cylinder and in others it is done in the exhaust system. In each embodiment, the sensor is provided in an accumulator chamber so as to provide an accurate signal of instantaneous engine running conditions. The use of the accumulator chamber insures that the combustible gases will not be diluted with fresh air charge, but will be able to purge from cycle to cycle so as to provide cycle-by-cycle information. Various arrangements are provided for protecting the sensor including serpentine flow paths, shields, the direction in which the exhaust gases are delivered and combinations of these features.
REFERENCES:
patent: 4617796 (1986-10-01), Abthoff
patent: 4831820 (1989-05-01), Lassanske
patent: 4903648 (1990-02-01), Lasaanske
patent: 5236330 (1993-08-01), Buchheister
Hart Douglas
Sanshin Kogyo Kabushiki Kaisha
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