| 摘要 |
<p>PURPOSE:To eliminate the effect of an electromagnetic sensor due to a high temperature by locating the section to be detected at the center portion of a piston and locating a detector at the swash plate chamber portion of a cylinder block. CONSTITUTION:When a shaft 100 and a swash plate 160 are rotated, a piston 111 is reciprocated in a cylinder chamber 110 to perform the compression action of a fluid to be compressed. The magnetic flux density between the piston and a detector 351 on the cylinder block 101 side is changed by the reciprocating motion of a section to be detected 350, and pulse signals are generated. Pulses are periodically generated during the normal operation of a compressor, but no pulse is generated at the time of an abnormal stop, and an abnormality can be detected. When the inclination angle of the swash plate 160 is changed and the reciprocating stroke quantity of the piston 111 is changed, the change of electromagnetic pulses is detected by a detector 351, a signal in response to the piston stroke quantity is outputted, and the discharged displacement of the compressor is judged. The adverse effect of a sensor section for maintenance due to a high temperature can be reduced.</p> |
