Fluid control apparatus and method

G - Physics – 05 – D

Patent

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Details

G05D 27/02 (2006.01) F04B 49/06 (2006.01) G05D 16/20 (2006.01)

Patent

CA 2412135

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 utilising pre-selected temperature and pressure bands.

L'invention concerne un dispositif de régulation, utile dans un dispositif de déplacement d'un fluide, par exemple un compresseur, et comprenant des moyens de détection (24) de la température du fluide déplacé par le dispositif, ainsi que des moyens de commande (11) du dispositif en fonction de la température détectée. De préférence, ce dispositif comprend également des moyens de détection (22) de la pression du fluide déplacé par le dispositif, une combinaison de signaux de température et de signaux de pression étant utilisée pour commander le dispositif. L'invention permet d'exécuter une surveillance et une commande très sophistiquées de ce dispositif, par exemple, par utilisation de bandes de température et de pression préalablement choisies.

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