DCP05003 64521385161 Automobile Air Conditionner Compressor For BMW3/5/7 E32/E34/E36 WXBM001
Parameter :
| Model Number | WXBM001 |
| Car Model | For BMW3/5/7 E32/E34/E36 |
| Type | AUTO AC Compressor |
| Year Model | 1991-2001 |
| OE No. | DCP05003/64521385161/64521470094/64528385161/64528385909/64528390336/64528390741 |
| Note | If you need assistance to make sure that this part will fit your vehicle.Please send us the photo of your old product .The OEM and/or the year,make model and engine size of your vehicle so that we may confirm it for you.We also recommend using the compatibility chart in order to make sure that this product will fit your vehicle. |
Theory----Principles of Air Conditioning
(Expansion Valve System)
1)High pressure side
Low pressure R134a vapor entering the compressor is compressed to become high pressure/temperature R134a vapor. This is then circulated along with lubricant oil to the condenser. As the high pressure/temperature vapor travels through the condenser, heat is released to the cooler ambient air passing over the condenser tubes condensing the vapor into a liquid. This high pressure/temperature liquid then travels through the filter drier onto the expansion valve where a small variable orifice provides a restriction against which compressor pushes.
2) pressure side
Suction from the compressor pulls the high pressure/temperature liquid R134a through small variable orifice of the TX valve and into the low-pressure side of the A/C system.
The R134a is now under low pressure/temperature vapor where heat from the cabin being blown over the evaporator coil surface is absorbed into the colder low pressure refrigerant The R134a is then pulled through the evaporator and into the
compressor.
The A/C cycle begins again as the R134a vapor is compressed and discharged under pressure.
3)Heat transfer
R134a in the LOW-PRESSURE side is COLD and can absorb large quantities of heat from the air moving over the evaporator.
R134a in HIGH-PRESSURE side is HOT and the cooler ambient air moving over the condenser can absorb the heat from it.
Summary
- When the R134a pressure is low, the R134a temperature is low.
- When the R134a pressure is high, the R134a temperature is high.
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.
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Automobile Air Conditionner DCP05003 Compressor For BMW3/5/7 1991-2001 WXBM001 Images
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