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US 5,176,855 AGranted
Liquid fuel system with tilt valve
AssigneeDavid P. Ward
InventorJames S. Jones
Life of this patent
Estimating the term…
Abstract
An improved carburetor uses a butterfly air valve having a controlled air pressure difference across it and positions a tilt valve, proportionally to feed the liquid fuel with a predetermined pressure difference across the fuel valve and the metered fuel is picked up by air and fed into the main air stream below the throttle place through a small air passage.
Claims6
A liquid fuel system for an internal combustion engine, comprising:
- a body having a bore with an air inlet and outlet;
- the body having a connection to a source of liquid fuel;
- and
- a tilt valve constructed and arranged within the body to meter the flow of liquid fuel into the bore in response to air flow in the bore, the tilt valve having a valve body with a circular edge, the valve body constructed and arranged for tilting movements within a frustroconical sealing surface.
1 more element
A liquid fuel system for an internal combustion engine, comprising:
- a body having a bore with an air inlet and outlet;
- the body having a connection to a source of liquid fuel;
- a tilt valve constructed and arranged within the body to meter the flow of liquid fuel into the bore in response to air flow in the bore, the tilt valve having a valve body with a circular edge, the valve body constructed and arranged for tilting movements within a frustroconical sealing surface;
- means for regulating the pressure of the fuel upstream of the tilt valve;
- an air valve in the bore constructed and arranged to control the position of the tilt valve;
- a bimetal strip constructed and arranged to control air pressure difference across the air valve to compensate for temperature;
- and
- the air valve upstream of a user-controlled throttle valve.
5 more elements
Dependencies are inferred from the claim text.