| 摘要 |
<p>PURPOSE:To make it possible to maintain the intake pressure constant, by absorbing the compression reaction into a spring resisting a negative moment imposed on a swash plate, when the variation of the intake pressure to a crankcase pressure of a set value converts the inclination of the swaying swash plate. CONSTITUTION:A crankcase 17 is formed to keep its pressure at a constant value by furnishing a supply route 37 switchable linking a discharge chamber 7 and the crankcase 17, and a linking route 27 to connect the crankcase 17 and an intake chamber 6. And is furnished a spring 41 having a performance to resist and set off a force of the compression reaction acting in the direction to reduce the inclination of a swaying swash plate 21 according to the inclination. When a variation of the intake chamber 6 pressure converts the inclination of the swaying oblique plate 21 against the crankcase 12 pressure kept at a set pressure, the compression reaction is absorbed to the spring 41 which resists a negative moment imposed on the oblique plate 21, and this absorved pressure is made possible to keep about at a constant value. Therefore, a rise of the blowing temperature of an evaporator can be prevented, and an unpleasant feeling for a driver can be perfectly avoided.</p> |
