F - Mech Eng,Light,Heat,Weapons – 02 – B
Patent
F - Mech Eng,Light,Heat,Weapons
02
B
F02B 27/04 (2006.01) F01N 13/08 (2010.01) F01N 7/08 (2006.01)
Patent
CA 2089085
2089085 9203639 PCTABS00011 A header assembly for an internal combustion engine (51) including a pair of header pipes (62, 61) having discharge ends, a collector (81) mounted on the discharge ends and having a housing directing exhaust gas pulses (94, 91) from both of the pipes to an outlet. The collector (87) is formed to produce the flow of exhaust pulses (94, 97) in a manner fluid coupling out-of-phase exhaust gas pulses (94, 97) in each of the pipes (62, 61) to the others by an amount sufficient to increase horsepower of the engine at substantially all normal operating speeds. The header pipes (62, 61) proximate the inlet to the header collector (27) are formed for discharge of gases along a common interface or boundary (86) of substantial transverse length to effect fluid coupling. Additionally, the collector (87) is free of channeling or protrusions to permit unconstrained transverse expansion of the pulses (94, 97) across the adjacent header pipe. A method of increasing engine horsepower by fluid coupling together header pipes also is described.
Flowmaster Inc.
Riches Mckenzie & Herbert Llp
LandOfFree
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