Auxiliary vehicle heater
OwnerThomas J. Quarrieinventor
Life of this patent
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Abstract
An auxiliary vehicle heater includes a combustion air fan, an intermittently rotating, absorbent wick, a glow plug for initiating combustion and a water jacket surrounding a combustion chamber. Fuel is supplied to the rotating wick by a metering pump and the hot combustion gases enter the combustion chamber and give up heat to the vehicle coolant surrounding it in the water jacket. The coolant is then pumped to the heater core of the vehicle heater. A thermocouple in the exhaust passage of the combustion chamber senses the exhaust temperature and three thermostats in the water jacket provide temperature data to a microprocessor which controls operation of the heater in response to sensed conditions and operator commands.
Claims8
An auxiliary vehicle heater comprising, in combination,
- an elongate housing,
- a fan for moving air through said housing,
- a burner assembly disposed in said housing and having a wick,
- a driver for rotating said wick,
- means for supplying fuel to said wick,
- a combustion chamber having a heat exchanger for providing combustion heat to engine coolant, and
- an orifice disposed between said burner assembly and said combustion chamber.
Dependencies are inferred from the claim text.