DISPLACEMENT CONTROL VALVE FOR VARIABLE DISPLACEMENT COMPRESSOR

摘要

PROBLEM TO BE SOLVED: To provide excellent displacement controllability and excellent responsiveness of displacement control, in constitution wherein first and second valve elements are not simultaneously opened. SOLUTION: A first valve chamber 40 is situated on a bleed passage 30. A first valve element 41 opens and closes a first valve hole 46 in the first valve chamber 40. A second valve chamber 47 is situated on an air supply passage 31. A second valve element 48 opens and closes a second valve hole 49 in the second valve chamber 47. A moving valve seat 43 has the first valve hole 46 formed therein and is movably held in a valve housing 38. A second valve element 48 closes a second valve hole 49 with the moving valve seat 43 making contact with a valve seat specified part 44. The second valve hole 49 is released through movement of the second valve element 48 through a second rod 59 as a result of the first valve element 41 being moved against the energization force of a valve seat energizing spring 45 togetherwith the moving valve seat 43 with the first valve hole 46 being closed.