| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent generation of a torsional load between a rotating shaft and a fixed capacity control valve by preventing leakage of lubricating oil existing between a rotary shaft and the shaft. <P>SOLUTION: A spring expanding in response to driving torque is interposed between a pulley 18 of transmitting driving force from an engine and a bracket 17 fixed to the rotary shaft 6, and is constituted so as to directly transmit rotation of the pulley 18 to the shaft 20 via a disc 21. A male screw formed on a fixed iron core 23 of the capacity control valve 22 is threadedly engaged with a female screw formed on the tip of the rotary shaft 6, and the shaft 20 rotates its fixed iron core 23. When the driving torque for driving this variable displacement compressor increases, the rotary shaft 6 and the shaft 20 relatively rotate, and increase a magnetic gap between the fixed iron core 23 and a movable iron core. Thus, the driving torque is reduced by controlling so as to increase a valve lift of a valve part and to reduce delivery capacity. <P>COPYRIGHT: (C)2007,JPO&INPIT |
