Primer for float-type carburetors

Patent · Tue Jul 14 04:00:00 EDT 1987

OSTI ID:6341984

Guntly, T G; Schultz, C L

A primer is described for a carburetor, the carburetor adapted to provide a combustible fuel/air mixture to a combustion engine and includes a carburetor body, a fuel/air mixture passage, a fuel supply bowl, and a fuel nozzle means for conducting fuel from the fuel supply bowl to the mixture passage, the primer comprising: a primer chamber in the carburetor body; an operator actuable displacing means for abruptly displacing a discrete volume of air from the chamber, the displacing means including a vent aperture for admitting air from outside into the chamber; a generally downwardly sloping surface in the chamber oriented parallel to the direction of flow of air through the vent aperture including a priming aperture; the priming aperture is located intermediate the upper and bottom surfaces of the primer chamber; a generally vertical surface in the chamber perpendicularly adjoining surface in the chamber perpendicularly adjoining the downwardly sloping surface; and a passageway extending from the priming aperture into the fuel supply bowl.

• Assignee: Tecumseh Products Co., Tecumseh, MI
• Patent Number(s): US 4679534
• OSTI ID: 6341984
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
AIR FLOW
APERTURES
CARBURETORS
DESIGN
DISPERSIONS
ENGINES
FLUID FLOW
FUEL SYSTEMS
FUEL-AIR RATIO
GAS FLOW
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MIXTURES
NOZZLES
OPENINGS
VENTS