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TRANSCRIPT
Permission granted to reproduce for educational use only© Goodheart-Willcox Co., Inc.
Chapter 8
Compressors, Clutches, and Drives
Permission granted to reproduce for educational use only© Goodheart-Willcox Co., Inc.
l. Objectives
Explain the purpose of a refrigeration compressor.
Identify the major parts of radial and axial piston compressors.
Explain the operation of radial and axial piston compressors.
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ll. Objectives
Identify the major parts and explain the operation of rotary vane compressors.
Identify the major parts and explain the operation of scroll compressors.
Explain the operation of a capacity control valve.
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lll. Objectives
Explain how the engine drives the compressor.
Explain the purpose of a compressor clutch.
Identify the major parts of a compressor clutch.
Explain the operation of a compressor clutch.
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Compressor Purpose
To raise the pressure and temperature of the refrigerant
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Basic Compressor Parts
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Compressor Parts
Body
Ears
Endplate
Crankshaft
Crankcase
Lip seal
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Compressor Body
The mounting place for other compressor parts
Holds refrigerant and lubricating oil
Made of aluminum on newer vehicles
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Compressor Ears
Built-in mounting points for attaching compressor to engine
Ears
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Endplate
Attached to the compressor body
Low and high side hose connections installed on the body or endplate
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Crankshaft and Crankcase
Crankshaft rides on bearings in the compressor body
Crankcase holds the crankshaft
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Crankshaft and Crankcase Illustration
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Compressor Parts
Crankshaft drive end extends from the body
Pulley and clutch assembly installed on the crankshaft drive end
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Lip Seal
Always installed where crankshaft drive end extends from compressor body