A Study on Characteristics of Automotive Electromagnetic Control Valve (ECV)

摘要

Automotive air conditioners are essential products used in vehicles as it provides drivers with pleasant indoor temperatures. While the automotive air conditioner has a simple structure where ambient temperatures are lowered by undergoing two phase transformations using a compressor, an expansion valve, a condenser, and an evaporator with a supply of power from the engine, consumption of power used in the process of compressing the refrigerant among air conditioner components becomes a factor for dropping fuel efficiency so that studies to reduce power consumption are being actively conducted at present. When power consumption of the compressor in the air conditioner is reduced, the fuel efficiency of the vehicle is improved. Among such studies, research and development has continued for electromagnetic control valve (ECV) of variable capacity-styled swash type compressor. In the present article, the automotive air conditioning system for which much research and development is carried out considering environmental problems and fuel economy will be introduced, and a study has been made concerning characteristics and recent development trends of ECV (electromagnetic control valve) as an automotive compressor control valve in which many changes are being made aware of among components for the air conditioning system.