Power plants – Internal combustion engine with treatment or handling of... – Pulsed – timed – tuned or resonating exhaust
Patent
1977-12-05
1980-01-08
Hart, Douglas
Power plants
Internal combustion engine with treatment or handling of...
Pulsed, timed, tuned or resonating exhaust
60322, 285136, 285268, F01N 710, F02B 2702
Patent
active
041821211
ABSTRACT:
The exhaust manifold for a transversely mounted automobile engine terminates adjacent to the engine in an outlet having an articulated connection with the inlet of an exhaust header that terminates in an exhaust pipe discharging to the atmosphere.
The articulated connection comprises an annular coupling portion having a spherical surface at the header inlet seated in sealing engagement with a downstream enlarging conical sealing surface defining the manifold outlet. An annular flange adjacent to the inlet of the header may be seated in sealing engagement against a second sealing surface of the annular coupling portion. The sealing engagements may be maintained by a collar yieldingly urged against the annular flange by spring means that engage the collar at spaced locations on a line parallel to the roll axis of the engine and passing through the center of the first named spherical surface.
Exhaust tuning is accomplished by partitioning the header inlet into separate exhaust passages connected by the coupling with selected exhaust ports of the engine through short manifold conduits. At a predetermined location downstream of the exhaust ports, the separate passages of the header merge.
REFERENCES:
patent: 908414 (1908-12-01), Mellin
patent: 2840394 (1958-06-01), Rohr
Chrysler Corporation
Hart Douglas
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