| 摘要 |
<p>PURPOSE:To promply decrease a discharge of a compressor so as to improve an acceleration characteristic of an engine when it is rapidly accelerated at a high temperature of the outside air in midsummer or the like, by controlling communication of a crank chamber with a suction side and discharge side through means responsively sensing both suction pressure and discharge temperature. CONSTITUTION:A pin-shaped value unit 30, which controls communication of a suction chamber 2 with a crank chamber 8, is driven by a bellows 24 responsively sensing a suction pressure. Said pin-shaped valve unit 30 is actuated so as to open a spool valve 50, which controls communication of a discharge chamber 6 with the crank chamber 8, against a spring 52. Further a means 51a, having a built-in wax temperature-sensing plate 51 and respectively sensing a temperature of the outside air, acts on said spring 52. And if the temperature of the outside air increases to a high degree, said means 51a acts so as to decrease a preset spring pressure of the spool valve 50 by the spring 52.</p> |
