Power plants – Internal combustion engine with treatment or handling of... – Pulsed – timed – tuned or resonating exhaust
Patent
1990-06-12
1991-05-28
Hart, Douglas
Power plants
Internal combustion engine with treatment or handling of...
Pulsed, timed, tuned or resonating exhaust
60323, F02B 2702
Patent
active
050183494
ABSTRACT:
The disclosure is directed to an exhaust efficiency increasing apparatus incorporating crossover ducts between dual exhaust conduits extending from an engine having two cylinder banks. The ducts are disposed to communicate with upstream entry and downstream exit apertures on the exhaust conduits and cross in an "X". Since where the ducts are positioned affects engine torque, torque curves can be adjusted or changed by adjustably positioning the crossover ducts within a housing which is placed in the exhaust system, to move the crossover ducts nearer to or further from the engine, by computer or manual control. A second embodiment incorporates at least two spaced duct pairs disposed to increase low end torque and high end output.
REFERENCES:
patent: 4926634 (1990-05-01), Putz
Duggan Donovan F.
Hart Douglas
Peacock Deborah A.
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