DESIGN OF LATCHING SYSTEM OF CAPACITY MODULATION COMPRESSOR FOR REFRIGERATION

摘要

The demand of energy saving products is on the rise because of the environmental controls and people's increased awareness of the global-warming issue. The energy consumption of a refrigerator depends on not only the efficiency of compressor itself, but also the capacity modulation. A new variable capacity reciprocating compressor, named TCM, will be introduced. This mechanically provides a Two-step Capacity Modulation without using any electronic frequency modulation. In the TCM compressor, the capacity modulation is achieved by changing the dead volume of cylinder through the control of sleeve eccentricity, obtained from the alternation of the rotational direction of a crankshaft in both the clockwise and counter-clockwise direction. A new latching system including a key, a spring, and an eccentric sleeve was applied in the TCM compressor for the capacity modulation. In this paper, the structural reliability of the new latching system was investigated for the TCM compressor.