Internal-combustion engines – Engine speed regulator – Charge proportion varying
Reexamination Certificate
2005-03-15
2005-03-15
Mohanty, Bibhu (Department: 3747)
Internal-combustion engines
Engine speed regulator
Charge proportion varying
C261S035000
Reexamination Certificate
active
06866019
ABSTRACT:
A priming system for small internal combustion engines is operable at engine cranking speeds to prime the carburetor of the engine, and is automatically disabled at engine running speeds. The priming system includes a control valve having an air vane responsive to rotation of the engine flywheel such that, at engine cranking speeds, the air vane positions the control valve to direct pressure pulses from the crankcase breather valve to the fuel bowl of the carburetor for priming and, upon running of the engine, the air vane positions the control valve to divert the pressure pulses from the crankcase breather valve to the throat of the carburetor to recirculate the pressure pulses for combustion with the engine. The priming system also includes a temperature-responsive vent valve which is opened at warm engine temperatures to vent a substantial portion of the pressure pulses to the atmosphere to reduce the amount of priming and prevent flooding of the engine during hot re-starts of the engine.
REFERENCES:
patent: 2598147 (1952-05-01), Tescher
patent: 3805758 (1974-04-01), May
patent: 4814114 (1989-03-01), Charmley
patent: 5503125 (1996-04-01), Gund
patent: 5775300 (1998-07-01), Sugii
patent: 5803035 (1998-09-01), Guntly
patent: 6012420 (2000-01-01), Dykstra et al.
patent: 6135429 (2000-10-01), Woody
patent: 6145487 (2000-11-01), Dykstra et al.
patent: 6186117 (2001-02-01), Matte
patent: 6523809 (2003-02-01), Woody
patent: 6622992 (2003-09-01), Woody
Baker & Daniels
Mohanty Bibhu
Tecumseh Products Company
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