Welcome to Discount Auto AC New and Remanufactured Auto Compressors

This website was created so our customers can gain a better understanding of how Automotive Compressors work and what the many different types are. Discount Auto AC new and remanufactured auto compressors has been building and remanufacturing original OEM compressors for over 16 years and our team of professionals have an accumulative wealth of knowledge of over 30 years. We have seen Automotive Compressors go from a simple V piston design to the most intricately electronic internal control valve Auto AC Compressors. 

Check out the list below for a short description of the different automotive compressors  internal types

RV2 or York 2 piston Automotive Compressors

RV2 Or York 2 Piston Automotive Compressors
The RV2 or York Tecumseh type Automotive Compressors are one of the first simple designs to be produced. They consisted of 2 pistons and 2 valve heads connected to a crank shaft. The crank shaft is connected to a magnetic clutch assembly. The clutch assembly consisted of a grounded magnetic field coil, pulley with bearing and the clutch hub. The pulley was turned by the standard motor v-belt and when the AC switch was turned on the coil magnetically drew the clutch hub in to meet with the pulley surface and since the clutch hub was connected to the crank shaft it would start the pumping action. 

Fixed Swash Plate automotive compressors


The fixed swash plate type automotive compressors uses a wobbling alluminum or steel swash plate connected to a crank shaft. There are between 3 to 5 pistons that ride along the swash plate via metal cone shaped half ball bearings. The ball shoes allow the piston to move up and down the cylinder bore as the wobbling swash plate spins. Because of the piston and cylinder design this type of auto compressor has an upper and lower valve plate assembly that moves freon much more efficiently. Most of these types are created by Nippondenso or Denso corporation such as the 10P, 10PA and 10S series. 

Variable Swash plate automotive compressors 

Variable Swash Plate Automotive Compressors

The variable swash plate automotive compressors use a swash plate that only has pistons attached to the bottom end of the compressor and thus only 1 set of valve plates. The crank shaft is attached to a spring loaded swash plate mechanism that allows the swash plate to go from 0 degrees to 100 degrees traveling pitch. The varied degrees allow the compressor to pump at different percentage levels depending on the amount of freon allowed into the piston cylinder chambers by way of the mechanical or electronic internal freon control valves. This has become the new norm for automotive compressors because of the consideral savings in mpg. If the auto interior is at the desired temperature the compressor only pumps partially to maintain  the temperature thus causing less strain on the engine and saving fuel economy.

Scroll Type  Automotive Compressors

Scroll Type  Automotive Compressors

A scroll type automotive compressors (also called spiral compressor, scroll pump and scroll vacuum pump) is a device for compressing air or refrigerant. It is used in air conditioning equipment, as an automobile supercharger (where it is known as a scroll-type supercharger) and as a vacuum pump. A scroll compressor operating in reverse is known as a scroll expander, and can be used to generate mechanical work from the expansion of a fluid, compressed air or gas. Many residential central heat pump and air conditioning systems and a few automotive air conditioning systems employ a scroll compressor instead of the more traditional rotary, reciprocating, and wobble-plate automotive compressors.

Rotary Vein Automotive Compressors

Rotary Vein Automotive Compressors

Rotary type automotive compressors are designed to compress and transfer refrigerant gas using a roller/cylinder mechanism, The roller rotates inside a cylinder compartment that's divided in two by a spring-mounted blade. This is how the refrigerant is compressed. In effect, the blade creates two sealed off areas within the cylinder. As the roller rotates inside the cylinder, variable pressures build up on both sides of the blade. As pressure build ups on one side, the compressed, cooled gas is forced out on the other.

Wobble plate Automotive Compressors

Wobble Plate Automotive Compressors

A reciprocating piston, fixed displacement type automotive compressors.  The pistons are operated by a wobble plate, which moves them backwards and forwards in the cylinders. As the front shaft turns the wobble plate angle changes, causing the pistons to move in and out, pulling refrigerant vapor in through the suction side, compressing it and discharging this high pressure vapor into the condenser.