| 摘要 |
PURPOSE: A capacity control valve for compressors is provided to reduce processing costs, and to increase a reaction speed using a piezo element. CONSTITUTION: A capacity control valve for compressors comprises a valve housing, a valve chamber(120), a rod bar(130), and a piezo element(140). The valve housing comprises a suction chamber connecting hole(111), a crank chamber connecting hole(113), a discharge chamber connecting hole(112), and a connection path(114) which connects the discharge chamber connecting hole and the crank chamber connecting hole. The valve chamber is placed in the valve housing. The rod bar controls the opening rate of the connection path according to the position in the valve chamber. The piezo element is placed in one side of the rod bar, and moves the rod bar back and forth by expanding and constricting. |
