92600JA10ACar AC Compressor DKS17C 7PK For Nissan Altima3.5 WXNS011

92600JA10ACar AC Compressor DKS17C 7PK For Nissan Altima3.5 WXNS011

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Compressors :

1) Rotary Vane - Panasonic

Rotary vane compressors consist of a rotor with three or four vanes and a carefully shaped rotor housing. As the compressor shaft rotates, the vanes and housing form chambers.

The R134a is drawn through the suction port into these chambers, which become smaller as the rotor turns. The discharge port is located at the point where the gas is fully compressed.The vanes are sealed against the rotor housing by centrifugal force and lubricating oil. The oil sump and oil pump are located on the discharge side, so that the high pressure forces oil through the oil pump and then onto the base of the vanes keeping them sealed against the rotor housing.

During idle an occasional vane noise from the compressor may be heard. This is due to the time taken for lubricating oil to circulate through the A/C system.

2)Scroll type - Sanden

This compressor uses a unique design with two scrolls, one fixed and one is movable, both are inter-leaved.The movable spiral is able to ORBIT or oscillate without actually fully rotating. The movable scroll is connected to the input shaft via a concentric bearing.

As the movable spiral oscillates within the fixed spiral, a number of pockets are formed between the spiral. As these pockets decrease in size the refrigerant is squeezed, the pressure increases and is discharged through a reed valve at the discharge port in the rear section of the compressor.

3)Variable stroke - Harrison V5

The Delphi (Harrison) V5 compressor is a non-cycling variable displacement compressor.

The compressor varies displacement to control capacity to meet A/C system demand at all operating conditions. The compressor features a variable angle wobble plate in five (V5) cylinder axial piston design.

Displacement is controlled by a bellows actuated control valve located in the rear cylinder head. This control valve senses and responds to the system suction pressure or A/C system demand.

Through regulation of compressor crankcase pressure, the wobble plate angle, and therefore compressor displacement is variable.

In general, the compressor discharge pressure is much greater than the compressor crankcase. Which is greater than or equal to the compressor suction pressure.

At maximum displacement, compressor crankcase pressure is equal to the compressor suction pressure.

At reduced or minimum displacement, the compressor crankcase pressure is greater than the suction pressure.

Reasons why compressors are prone to failure in summer

Air conditioning compressors can fail in the summer due to a variety of reasons. One of the main factors is increased usage during hot weather. The compressor has to work harder to cool the air, putting more strain on its components and potentially leading to failure. Additionally, the increased heat can cause the refrigerant to expand and put extra pressure on the compressor, leading to potential damage.

Another reason for compressor failure in the summer is lack of maintenance. If the compressor is not regularly serviced and maintained, it can become dirty or clogged, affecting its efficiency and eventually causing it to fail. It is important to clean or replace filters, check refrigerant levels, and ensure proper lubrication to keep the compressor running smoothly.

Furthermore, running the air conditioning system improperly can also contribute to compressor failure. For example, if the system is not used regularly or only used at low settings, it can lead to the refrigerant not circulating properly, causing damage to the compressor.

To prevent compressor failure in the summer, it is recommended to have regular air conditioning maintenance performed, including cleaning or replacing filters, checking refrigerant levels, and ensuring proper lubrication. It is also advisable to use the air conditioning system regularly and at the recommended settings to maintain its efficiency and prevent potential damage.