US 4,357,285 AGranted

Thermal regulator for fuel and air to a carburetor

OwnerJose L. Pallares-Martinez, Jose Pallares-Osorioinventors

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Abstract

An apparatus for providing fuel of a predetermined temperature and at a predetermined fuel rate based on demand to a carburetor of an internal combustion engine comprising a temperature regulated air flow mixer valve, a cool air inlet to the valve, a warm air inlet to the valve, a thermal balancing chamber connected to the outlet of the valve including a fuel pressure control valve mounted thereon, an expansion chamber mounted on the thermal balancing chamber and a fuel metering valve mounted at the outlet of the thermal expansion chamber. The fuel metering valve is responsive to engine vacuum. The thermally-regulated air flow mixer valve is responsive to the mixture in the intake manifold, and mixes the cool air and warm air to produce a desired temperature in the thermal balancing chamber. The warm air inlet includes a heat exchanger mounted in the exhaust manifold of the engine for warming intake air.

Claims9

Dependent claims

An apparatus for providing fuel of a predetermined temperature and at a predetermined feed rate based on demand to a carburetor of an internal combustion engine comprising:

a temperature-regulated air flow mixer valve having two inlets, one outlet and means for sensing temperature of the interior of an intake manifold of the engine and operating the valve accordingly;
cool air inlet means connected to one of said inlets of said valve;
warm air inlet means connected to the other of said inlets of said valve having means associated with an exhaust manifold of the engine for warming air;
a thermal balancing chamber having a tube passing therethrough connected to said outlet of said mixer valve, a fuel inlet, a fuel outlet and a fuel pressure control valve mounted thereon and connected to a fuel tank;
means mounted on said chamber for providing elastic expansion space for fuel in said chamber;
and
means mounted at said outlet of said chamber responsive to engine vacuum for metering fuel flow to the carburetor based on demand.

4 more elements

Dependencies are inferred from the claim text.