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Car Air Conditioner Compressor LR012794 For RangeRover Sport For
DiscoveryⅢ4.4 WXLR007
Parameter:
Model Number | WXLR007 |
Car Model | For RangeRover Sport/DiscoveryⅢ4.4/Jaguar XF4.2 |
Type | Ac Compressor |
Year Model | 2004-2015 |
Compressor type | 7SEU17C 6PK |
OE NO. | LR012794/JPB000172/JPB000173 |
Qualification Certificate
Working Principle
The basic working principle of the automobile air conditioning
compressor is to suck low-pressure cold gas (usually refrigerant)
into the compressor cavity through the driving device, and then
compress it into high-pressure and high-temperature gas.
Compressors usually use piston or screw compressors. In a piston
compressor, the piston moves up and down in the cavity, and the
cold gas is compressed by the movement of the piston. In a screw
compressor, the screw compresses the cold gas. The compression
process of the compressor increases the pressure and temperature of
the cold gas. The high-pressure and high-temperature gas will then
enter the condenser and be converted into high-pressure hot gas
through heat dissipation, then cool and expand through the
expansion valve, and finally enter the evaporator to prepare for
circulation again.
Throughout the process, the compressor provides compression and
conversion capabilities and is one of the key components to realize
the automotive air conditioning refrigeration cycle.
Piston-Type Compressors
The automotive air conditioning compressor is a crucial component
of the AC system, responsible for compressing and circulating the
refrigerant. It consists of several key parts that work together to
achieve effective cooling.
1. Compressor Housing: The outer shell of the compressor, designed
to enclose and protect the internal components.
2. Compressor Pulley: A pulley attached to the front of the
compressor, connected to the engine via a belt. It transfers power
from the engine to drive the compressor.
3. Clutch Assembly: The clutch allows the compressor to engage and
disengage as required. It consists of an electromagnetic coil,
friction plates, and a hub.
4. Swash Plate: This component converts the rotational motion of
the compressor shaft into a reciprocating or up-and-down motion. It
is responsible for compressing the refrigerant.
5. Piston: Linked to the swash plate, the piston moves up and down
within the compressor cylinder to compress the refrigerant gas.
6. Reed Valves: These one-way valves control the flow of
refrigerant into and out of the cylinder. They prevent backflow and
ensure efficient compression.
7. Oil Separator: Located within the compressor housing, it
separates the refrigerant oil from the refrigerant gas before it
leaves the compressor.
8. Shaft Seal: This seal prevents refrigerant from leaking out and
contaminants from entering the compressor. It ensures the integrity
of the system.
9. Control Valve: Some compressors have a control valve that
regulates the flow of refrigerant based on the cooling demands of
the vehicle.
10. Mounting Brackets: These brackets secure the compressor to the
engine or chassis, keeping it stable and in the correct position.
Each of these components plays a crucial role in the operation of
the automotive air conditioning compressor. Their proper
functioning ensures efficient cooling and overall performance of
the AC system in vehicles.