4472208243 Auto Parts Ac Compressor For Lexus LX470 GS430 WXLX004

4472208243 Auto Parts Ac Compressor For Lexus LX470 GS430 WXLX004
 
 

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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.

Need To Replace The Situation

Here are some additional symptoms that might indicate a faulty AC compressor requiring replacement:

1. Loud or unusual noises: If you hear grinding, squealing, or rattling noises coming from the AC compressor, it could indicate internal damage or worn-out components.

2. AC system not cooling: If warm air is blowing through the dash vents even when the AC system is turned on, it could mean that the compressor is not functioning properly. This could be due to a lack of refrigerant or internal damage.

3. Excessive vibration: Excessive vibrations while the AC system is running can be a sign of compressor issues. This could be caused by worn-out or damaged compressor components.

4. AC system repeatedly cycles on and off: If your AC system frequently turns on and off rapidly, it could indicate a faulty compressor. This is known as short cycling and could be caused by a refrigerant leak, a malfunctioning pressure switch, or a failing compressor.

5. Burning smell: If you notice a burning smell coming from your AC system, it could indicate that the compressor's motor or wiring is overheating.

6. Oil or refrigerant leaks: Leaking refrigerant or oil around the AC compressor can be a sign of a failing compressor that needs to be replaced.

7. High pressure or low-pressure readings: An experienced technician can diagnose a faulty compressor by measuring the pressure levels in the AC system. If the pressure readings are abnormal, it could be an indication that the compressor is malfunctioning.

If you are experiencing any of these symptoms, it is best to have a professional HVAC technician inspect and diagnose the issue. They will be able to determine if the AC compressor needs replacement or if there are other underlying problems that need to be addressed.

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