Electrical or Electronic and Air Conditioning Systems

Vocabulary flashcards covering automobile electrical, ignition, charging, and air conditioning components based on Session 10.

Starting System

An electrical system where the starting motor is driven by means of current taken from the battery.

Ignition System

An electrical system whose function is to produce a spark in the engine combustion chamber at the end of the compression stroke.

Generating or Charging System

A system responsible for generating, regulating, and supplying electrical energy to charge the vehicle's battery.

Lighting System

The system consisting of various lights used while the vehicle runs, including headlights, tail lights, fog lights, brake lights, reversing lights, parking lights, and indicators.

Heating Coil

A coil through which warm water from the engine cooling system is circulated to provide the heat required to warm the vehicle interior.

Compressor

The main mechanical part of the A/C system driven by the engine or an electric motor that compresses low-pressure refrigerant vapour from the evaporator into high pressure.

Clutch (Magnetic Clutch)

A device fixed to the compressor that transmits power smoothly and engages or disengages the compressor as required.

Condenser

A cooling device mounted in front of the engine radiator that converts high-pressure refrigerant vapour into a liquid by releasing heat to the outside air flowing through it.

Receiver-Drier (Dehydrator)

A small reservoir vessel that filters liquid refrigerant, extracts any leaked moisture, and stores excess refrigerant.

Expansion Valve

A controlling device mounted at the evaporator inlet that regulates the quantity of refrigerant flowing into the evaporator and maintains constant pressure throughout varying loads.

Evaporator (Cooling Coil)

The refrigeration component containing tubes and fins located inside the passenger compartment above the footwell, where refrigerant evaporates and absorbs heat from passenger compartment air.

Throttling Device

A valve in the refrigeration system where the pressure and temperature of medium-temperature, high-pressure refrigerant are decreased suddenly to provide a cooling effect to the evaporator.

Temperature Tube

A sensing device that signals the diaphragm in the expansion valve to adjust its size depending on the refrigerant temperature at the evaporator outlet.