Fuel control system for a carburetor

Patent · Tue May 05 04:00:00 EDT 1987

OSTI ID:6514097

Herd, Jr, W H; Hensen, J W

A fuel control system is described for a carburetor having a housing defining a throat through which air and fuel are drawn. The carburetor has pivotally positionable venturi plates disposed in the throat of the carburetor; a reservoir; nozzle bar; and fuel supply connected in fluid-flow relation. The fuel control system comprises: a primary restrictor, the restrictor defining a passage of predetermined cross-sectional area. The restrictor leading to a conduit connects the reservoir, primary restrictor and nozzle bar in fluid-flow relation; a primary adjustable jet has a screw-threadable adjustment member that controls the amount of fuel that is provided from the adjustable jet to the carburetor nozzle bar. The adjustment member has a conical forward end which engages a peripheral seat defining an annular flow passage when the adjustment member is displaced from the seat. A secondary restrictor connects in fluid-flow relation between the reservoir and the nozzle bar.

• Assignee: Pollution Controls Industries, Inc., Tulare, CA
• Patent Number(s): US 4663090
• OSTI ID: 6514097
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
CARBURETORS
CONTROL EQUIPMENT
CONTROL SYSTEMS
ENGINES
EQUIPMENT
FLOW REGULATORS
FLOWMETERS
FLUID FLOW
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
FUEL-AIR RATIO
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
JETS
MEASURING INSTRUMENTS
METERING
METERS
NOZZLES
VENTURI TUBES