Recent Progress in Technology of the 5-Cylinder Wobbleplate Type Compressor for Automotive Air Conditioning

The SD-5 Series, five cylinder wobble plate compressors have again been improved to meet the requirements of further size and weight reduction; rapid car interior cool down at the lower speed range; yet maintain an adequate capacity saturation in the high speed range, and lower operating noise. Featured in this paper is an explanation of how the new technology is incorporated.

1. 1)
   Use of dual TFE piston ring technique,
2. 2)
   Reduction in the oil circulation ratio in the refrigerant circuit.
3. 3)
   Optimizing of bore to stroke ratio.