Engine Heater
First Claim
1. A heater comprising:
- (a) a combustion chamber;
(b) a burner in said combustion chamber;
(c) a plurality of spaced gas conduits from said combustion chamber defining air passages therebetween;
(d) a liquid jacket having a liquid inlet and outlet;
(e) a multiplicity of spaced apart air conduits through said liquid jacket; and
(f) means for directing air through said air passages and then through said air conduit.
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Accused Products
Abstract
An apparatus for preheating an engine is disclosed. The apparatus comprises a liquid fuel burning heater, a coolant pump for circulating engine coolant through the heater, a fuel pump for delivering fuel to the heater, a blower for delivering air to the heater, and a control module for maximizing the output of the heater. The heater comprises a liquid fuel burner and a two stage heat exchanger--the first stage for transferring heat produced by the burner to clean air supplied by the blower, and the second stage for transferring heat from the clean air to the engine coolant. The heater also produces a clean hot air discharge for heating an engine compartment, battery compartment or operator'"'"'s compartment. The burner comprises a cup-shaped housing having an inlet, a plate enclosing the top of the housing, the plate having a first pattern of grooves in its outer surface and second pattern of grooves in its inner surface, the two patterns intersecting each other, a wick held in the first pattern of grooves, a pressure actuated inlet valve to the housing, and a glow plug igniter.
38 Citations
13 Claims
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1. A heater comprising:
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(a) a combustion chamber; (b) a burner in said combustion chamber; (c) a plurality of spaced gas conduits from said combustion chamber defining air passages therebetween; (d) a liquid jacket having a liquid inlet and outlet; (e) a multiplicity of spaced apart air conduits through said liquid jacket; and (f) means for directing air through said air passages and then through said air conduit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for starting a heating apparatus having a fuel burner, a liquid circulation system including a liquid pump, a burner igniter, an air blower, a fuel pump and a burner flame sensor, comprising the sequential steps of:
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(a) circulating liquid through the heater; (b) activating the burner igniter; (c) blowing air into the heater and to the burner; (d) pumping fuel to the burner; (e) sensing for a flame at the burner; and (f) deactivating the burner igniter when a flame is sensed at the burner. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification