10S20C Buick Auto AC Compressor For Chevrolet Traverse For GMC Acadia 4472606643 WXBK021

10S20C Buick Auto AC Compressor For Chevrolet Traverse For GMC Acadia 4472606643 WXBK021

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Types of AC compressors for a car

There are various kinds of compressors in modern car air conditioning systems that are differing, for example, in power, performance, noise, etc. In general, we will consider some models of structures using the example of the DENSO compressor range.

• The most popular type of compressor is a swashplate. The drum of the unit, containing several pistons (from five to seven), is driven by the engine of the car. The pistons circulate the refrigerant sliding relative to the stationary wobble plate. The volume of the pumped-over coolant can be changed due to the variable angle of inclination of the disc. DENSO compressors of this type (SE, SB, SL) are equipped with many large vehicles for which high performance of the AC system is important.

• Compressors with wobble plate, DENSO CA. In this design, on the other hand, the swashplate is movable, and the pistons and drum do not rotate. The distribution system in these compressors is a little more complicated, and today they are gradually losing ground.

• Scroll compressors are completely different types of AC compressors for a car. Their mechanism consists of two spirals: movable and fixed. Compressors of the DENSO SC type are renowned for their extremely low noise levels. Scroll compressors take up very little power from the engine and are therefore excellent for air conditioning systems in cars with small light engines. Due to its low energy consumption, DENSO ES compressors with an electric drive are also equipped with a scroll mechanism. The advantage of these compressors is the ability to operate on the vehicle's battery, that is, with the engine off, which is important for hybrid vehicles.

• Finally, rotary vane compressors, DENSO TV. These compressors are designed for low power systems. Their principle of operation is familiar to many motorists from booster pumps it is an eccentric in a chamber of variable volume, equipped with movable blades. The simplicity of the design of these compressors ensures their reliability and ease of maintenance.

Working principle for AC car compressor

In a closed AC system, the cooling of freon in the evaporator occurs due to a sharp change in pressure: liquid freon under high pressure passes through a narrow opening, atomizing and instantly cooling.

The task of the compressor is to pump refrigerant (freon) from the low-pressure circuit (from the condenser radiator) to the high-pressure circuit (to the evaporator radiator) with its simultaneous compression, which means an increase in temperature. In the condenser, the freon is cooled and turns into a liquid state, after which it enters the condenser again.

The AC compressor is sometimes referred to as the "heart" of the system, so its smooth operation is so important for the normal operation of the air conditioner. At the same time, the compressor is also heavily loaded.