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http://dx.doi.org/10.5855/ENERGY.2013.22.4.394

Analysis of flow rate of variable displacement compressor ECV in automobile air conditioning control system  

Jeong, Yeong Jun (Division of Mechanical and Automotive Engineering, Kongju National University (KNU))
Cho, Haeng Muk (Division of Mechanical and Automotive Engineering, Kongju National University (KNU))
Publication Information
Journal of Energy Engineering / v.22, no.4, 2013 , pp. 394-398 More about this Journal
Abstract
At present, using of electromagnetic control valve (ECV) in external variable displacement swash plate type compressor is a common issue. Solenoid operated ECV controls vehicle air conditioning system through a pulse width modulation (PWM) input signal that supplied from an external source. Different port pressure controls the swash plate movement inside the compressor at certain angles that finally determines the refrigerant flow rate to the vehicle compartment for passengers comfort. In this paper, crankcase pressure flow (Pc flow) is calculated with some ECV samples with corresponding to amount of variable supply of current ranges from 0.20Amp to 0.95Amp.
Keywords
ECV; Compressor; Air-Conditioner;
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