PURPOSE: To compact a compression volume control mechanism as well as ensure the motion of a slide wall member using a spring, by accommodating a coiled spring with an approx. long-holed profile in a recess formed in a slide wall member movable.
CONSTITUTION: If a high pressure refrigerant is introduced to a control port 18 and a slide wall member 14 has blocked the front space 20 to provide full capacity operation, the front face of said slide wall member 14 is put in a state as in contact with that portion of surface of an accommodation chamber 13 which is equipped with steps, and therefore little clearance is formed in the cylinder part 5. Therefore there is no significant drop of the efficiency owing to a compression volume control mechanism 12 during full capacity operation.
SANO YASUHIKO
YUZUTA JIROU
HIRANO HIDEO
KOJIMA YOSHINOBU
