| 摘要 |
The invention provides control apparatus for use with a fluid displacement device, for example a compressor, the control apparatus comprising means (24 ) to detect the temperature of fluid being displaced by the device and means (11) to control the device independence upon the sensor temperature. Preferably there is also means (22) to sense the pressure of the fluid being displaced by the device, a combination of temperature signals and pressure signals being utilised to control the device. The invention enables very sophisticated monitoring and control to be carried out, for example utilisin g pre-selected temperature and pressure bands.
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