1. Permission granted to reproduce for educational use only © Goodheart-Willcox Co., Inc. Chapter 8 Compressors, Clutches, and Drives

2. 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.

3. Permission granted to reproduce for educational use only © Goodheart-Willcox Co., Inc. 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.

4. Permission granted to reproduce for educational use only © Goodheart-Willcox Co., Inc. 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.

5. Permission granted to reproduce for educational use only © Goodheart-Willcox Co., Inc. CompressorCompressor Purpose To raise the pressure and temperature of the refrigerant

6. Permission granted to reproduce for educational use only © Goodheart-Willcox Co., Inc. Basic Compressor Parts

7. Permission granted to reproduce for educational use only © Goodheart-Willcox Co., Inc. Compressor Parts Body Ears Endplate Crankshaft Crankcase Lip seal

8. Permission granted to reproduce for educational use only © Goodheart-Willcox Co., Inc. Compressor Body The mounting place for other compressor parts Holds refrigerant and lubricating oil Made of aluminum on newer vehicles

9. Permission granted to reproduce for educational use only © Goodheart-Willcox Co., Inc. Compressor Ears Built-in mounting points for attaching compressor to engine Ears

10. Permission granted to reproduce for educational use only © Goodheart-Willcox Co., Inc. Endplate Attached to the compressor body Low and high side hose connections installed on the body or endplate

11. Permission granted to reproduce for educational use only © Goodheart-Willcox Co., Inc. Crankshaft and Crankcase Crankshaft rides on bearings in the compressor body Crankcase holds the crankshaft

12. Permission granted to reproduce for educational use only © Goodheart-Willcox Co., Inc. Crankshaft and Crankcase Illustration

13. Permission granted to reproduce for educational use only © Goodheart-Willcox Co., Inc. Compressor Parts Crankshaft drive end extends from the body Pulley and clutch assembly installed on the crankshaft drive end

14. Permission granted to reproduce for educational use only © Goodheart-Willcox Co., Inc. Lip Seal Always installed where crankshaft drive end extends from compressor body