Power plants – Internal combustion engine with treatment or handling of... – Pulsed – timed – tuned or resonating exhaust
Reexamination Certificate
2011-06-21
2011-06-21
Denion, Thomas E (Department: 3748)
Power plants
Internal combustion engine with treatment or handling of...
Pulsed, timed, tuned or resonating exhaust
C060S274000, C060S314000, C060S324000
Reexamination Certificate
active
07963108
ABSTRACT:
An exhaust system for a two-cycle engine includes an exhaust conduit having both a bypass port and a regulator port for discharging exhaust gases to atmosphere. The bypass port has a fixed size but the regulator port has a variable size that varies over the range of engine speeds. Within a low range of operating speeds, the regulator valve is at least partly closed. Within a mid range of operating speeds, the regulator valve is progressively opened with increases in the operating speed. Within a high range of operating speeds, the regulator valve is progressively closed with further increases in the operating speed.
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Denion Thomas E
Harter Secrest & Emery LLP
Hi-Velocity Technology, Inc.
Ryan, Patent Agent Thomas B.
Salai Esq. Stephen B.
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