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AssigneeOnan Corporation
InventorsRonald J. Mellum, Peter M. Hawkins, Jr., Glennard M. Kline, Deborah A. Klinkert, Ronald G. McFarlane, Gary P. Hansen
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The present invention is directed to an auxiliary power unit for use with a vehicle, typically a truck. The truck has a cab and a sleeper to which the auxiliary power unit provides auxiliary air conditioning and heating. The truck also has a cab evaporator, a sleeper evaporator, a compressor, a condenser, and a plurality of refrigerant lines, a cab heater, a sleeper heater, and a plurality of coolant lines. The auxiliary power unit has an auxiliary evaporator and a plurality of auxiliary refrigerant lines. The auxiliary evaporator is arranged in series with the sleeper evaporator and the sleeper heater. The auxiliary refrigerant lines are separate and distinct from the truck's plurality of refrigerant lines. The auxiliary power unit also has a plurality of auxiliary coolant lines which are interconnected with the truck's plurality of coolant lines. The interconnection is accomplished in such a way that the auxiliary power unit can provide heat to the sleeper heater when the truck engine is running or when the truck is not running. If the coolant becomes excessively hot, a by-pass thermostat and valve direct the coolant to an auxiliary radiator. The auxiliary power unit has an auxiliary control panel in the sleeper to provide control of the heating and cooling in the sleeper when the truck engine and/or auxiliary engine is running.
An auxiliary power unit, for use with a vehicle, the vehicle having a main engine, a driving area, an alternative use area, a driving area fan, a driving area evaporator, a compressor, a condenser, an alternative use area fan, an alternative use area evaporator, interconnected by a plurality of refrigerant lines and driven by the vehicle's main engine to provide air conditioning to the driving area and alternative use area;
An auxiliary power unit, for use with a truck, the truck having an engine, a cab, a sleeper, a cab evaporator, a sleeper evaporator, a compressor, a condenser, and a plurality of refrigerant lines, and a cab heater, a sleeper heater, a plurality of coolant lines, and a cab fan and a sleeper fan, whereby when the truck engine is in use, the truck fan, the sleeper fan, the cab evaporator, the sleeper evaporator, the compressor and the condenser can be activated by a user, and be powered by the truck engine to air condition the cab and sleeper, alternatively, the cab fan, the sleeper fan, the cab heater, and the sleeper heater can be activated by the user, and be powered by the truck engine, to heat the cab and sleeper;
An auxiliary climate control unit for use with a truck, the truck having an engine, a cab, a sleeper, a cab heater, a sleeper heater, a condenser, a plurality of refrigerant lines, a sleeper evaporator, a plurality of coolant lines, and a cab fan and sleeper fan;
Dependencies are inferred from the claim text.