Coolant compressor from the double acting obliquely type of power with vera, uranium-235

摘要

PURPOSE:To switch capacity in a moment by switching the acting pressure applied into a pressure acting chamber by a control valve operated by the pressure difference between before and behind the throttle part of a suction conduit, thus preventing the erroneous operation due to the external cause such as sharp variation of engine revolution. CONSTITUTION:In a large-diameter part 39a formed onto a control valve F, a spool valve 42 is installed, holding a pair of pressure chambers 43 and 44. A pressure acting chamber 25 is connected to a discharge conduit 31 and a suction conduit 32 through sealing valves 48 and 48. These sealing valves 48 and 48 are opening/closing-operated by the small-diameter rods 42b and 42b extended from the spool valve 42. Each pressure before and behind a throttle part E formed in the suction conduit 32 is introduced into the pressure chambers 43 and 43, and the spool valve 42 is shifted by the pressure difference.