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Bus Air Condition System

DC Motor

Bus air condition system is consist of compressor、evaporator and condenser. Compressor motor plays the most important part between these three part. The number of evaporator motor and condenser motor depends on the different type of the car. Bus AC system almost use Brush DC motor at present. All of the motor in Volcano is customized, used in different area. For Volcano motor’s Brush DC motor, the brush is easy to change, with good quality the Brush DC motor, the life time of Volcano motor longer than the other Brush DC motor. For the Brushless DC Motor, the efficiency could be more than 90%.

DC Motor

When the Gaseous refrigerant enter into the compressor, it become the high pressure vapor, then come into condenser. After go through the condenser, the high pressure vapor change into the high pressure liquid. Next, with the thermostatic expansion vaive the high pressure liquid become to the low pressure liquid, finally go through the evaporator to the car.


1.Bus AC system used condenser brushless dc motor, with the good quality of real materials, the efficiency could be more than 90%. The number of condenser motor depends on the different type of the car. We have manufacture different kind of the motor for many Bus make company, and here is one of our product: 24VDC 300W 1500rpm 

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The advantage of our Brushless DC motor:

  • Lower Maintainance and longer lifetime- no brush and commutator erosion

  • Lower noise-the elimination of brush contact

  • Higher power to weight ratio

  • Higher efficiency ( in general higher than 90%)

  • Lower temperature rise-more efficient heat dissipation due to winding construction

  • Reduction of EMI


2. Bus AC system used evaporator brush dc motor, with the good quality of real materials, the efficiency could be more than 85%. The number of evaporator motor depends on the different type of the car. We have manufacture different kind of the motor for many Bus make company, and here is one of our product: 24VDC 375W 2000rpm

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The advantage of our Brush DC motor:

  • high efficiency

  • high power to weight ratio

  • easy brush access

  • aesthetic looks

  • custom made specials 


For a professional Bus AC system case advices, please contact us at info@volcanomotor.com. Our engineers are at our service case by case. You can tell us your application, function requirements, efficiency etc. 


Keywords: Bus AC system motor , compressors for passenger car, Bus AC condenser、Bus AC evaporator、Bus AC brushless dc motor、Bus AC brush dc motor.


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