Power plants – Internal combustion engine with treatment or handling of... – Pulsed – timed – tuned or resonating exhaust
Patent
1982-03-09
1984-08-14
Hart, Douglas
Power plants
Internal combustion engine with treatment or handling of...
Pulsed, timed, tuned or resonating exhaust
60323, 60605, F02B 2702, F01N 710
Patent
active
044648979
ABSTRACT:
An exhaust manifold for a four-cylinder in-line internal combustion engine provided with a turbocharger is disclosed wherein a first exhaust duct and a second exhaust duct are connected to an upper exhaust gas outlet of a turbocharger-mounting flange roughly symmetrically with respect to the center of the turbocharger installing flange. A single third exhaust duct is connected to the lower exhaust gas outlet of the turbocharger-mounting flange. In the exhaust manifold according to the present invention, it is possible to effectively utilize cyclic exhaust gas pressure variation to induce exhaust gas pressure resonance for boosting turbocharger performance.
REFERENCES:
patent: 3948052 (1976-04-01), Merkle
patent: 4022019 (1977-05-01), Garcea
Hart Douglas
Nissan Motor Company Limited
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