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    • 79. 发明专利
    • SWASH PLATE TYPE VARIABLE CAPACITY COMPRESSOR
    • JPS63150478A
    • 1988-06-23
    • JP29845686
    • 1986-12-15
    • NIPPON SOKEN
    • INAGAKI MITSUOTANAKA TAROSASAYA HIDEAKIIWANAMI SHIGEKI
    • F04B27/14F04B27/08
    • PURPOSE:To improve the controllability for the tilt angle of a swash plate and the center of revolution by selecting the pressure supplied into each control pressure chamber formed on the both surface sides of a piston by switching a control valve and driving a spool in the axial direction by the piston. CONSTITUTION:When a shaft 1 revolves, a swash plate 10 revolves around a spherical supporting part 405. Then, a piston 7 performs reciprocating movement in a cylinder 64 through each shoe 18, 19 by the swing movement of the swash plate 10. Therefore, the capacity in a compression chamber 50 is increased/decreased, and after gas coolant is inhaled into the compression chamber 50 from a suction chamber 72, said gas coolant is discharged into a discharge chamber 90. In this case, a control valve 400 is switched by a controller 500, and the pressure in the first discharge chamber 93 is introduced into the first control pressure chamber, and the pressure in a suction chamber 74 is introduced into the second control pressure chamber 122, and a piston 30 is shifted rightward. Therefore, the swash plate 10 is shifted rightward through a spool 40, and the stroke in the reciprocating movement of the piston 7 is reduced by reducing the swing quantity of the swash plate 10.