| 摘要 |
<p>PURPOSE:To allow a continuous change of the compression capacity in response to a change of the cooling load by inserting or withdrawing an adjusting body into or from a compression chamber by the pressure difference generated between the swash plate chamber pressure and the compression chamber pressure during an intake stroke and changing the volume of the compression chamber. CONSTITUTION:When the cooling load is large, a solenoid value 26 on a passage 24 is closed, a solenoid valve 27 on a passage 25 is opened, and an intake chamber 17R is communicated to a swash plate chamber 4. As a result, the swash plate chamber 4 is kept at the same pressure as the intake chamber 17R, the pressure difference between the pressure of a pressure action chamber 9 communicated to the swash plate chamber 4 and the pressure of the compression chamber during an intake stroke is made zero, an adjusting body 19 is inserted into the pressure action chamber 9 by the energizing action of a spring 21, thus a 100%-operation condition is obtained in the compression chamber 7. Next, when the cooling load is lower than the preset value, a on the contrary, the adjusting body 19 is protruded into the compression chamber 7, thus its volume is decreased, and a small-capacity operation condition is obtained. Accordingly, the compression capacity can be continuously changed in response to a change of the cooling load.</p> |
