| 摘要 |
<p>PURPOSE:To vary the capacity of the swash plate type fluid machinery by forming a small hole for discharging the working fluid in a cylinder in the course of compression to the low pressure side onto the cylinder head onto which the edge part of the cylinder contacts. CONSTITUTION:A low-pressure side passage 3A and a high-pressure side passage 3B for fluid are formed onto a cylinerhead 4 onto which the cylinder 9 of the swash-plate type fluid machinery contacts, and a small hole 51 which communicates to the low-pressure side passage 3A through a relief passage 52 is formed between the both flow passages. Since a fluid control valve 50 for controlling the capacity is arranged in the relief passage 52, the working fluid in the course of compression is introduced through bypass into the low- pressure side passage 3A through the small hole 51, so far as the control valve is in opened state, and the capacity of the fluid machinery can be reduced.</p> |
