Agricultural Tractor with Air Conditioning Compressor Drive
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United States of America Patent
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app pub date -
Jul 31, 2014
filing date -
Oct 25, 2013
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Abstract
An agricultural tractor includes a frame, ground wheels including drive wheels, an operator cab carried on the frame, an engine mounted in an engine compartment on the frame at a position longitudinally spaced from the cab, a cooling assembly within the engine compartment for cooling the engine with the fan on the cooling assembly being driven by a hydraulic motor. An air conditioning system for cooling the cab includes a compressor in the engine compartment driven directly or indirectly by the same hydraulic motor so that it is driven at the rate of the fan rather than the rate of the engine. The engine control system controls both the cooling fan and the compressor using a clutch to disconnect the compressor when not required or when the fan is driven in reverse direction.
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