Proportional valve for hydraulic systems

Details Proportional valve for hydraulic systems Proportional valve for hydraulic systems

F - Mech Eng,Light,Heat,Weapons

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F15B 13/044 (2006.01) F15B 13/04 (2006.01) F16K 31/06 (2006.01) G05D 7/06 (2006.01)

Patent

CA 1142411

ABSTRACT OF THE DISCLOSURE In order to correct non-linearities inherently existing in the relation between the value of a hydraulic fluid parameter controlled by a proportional valve and an operating signal controlling the valve, in an arrangement in which the setting of the valve is controlled by effecting a comparison between the operating signal and a feedback signal representing the valve movement, a memory is provided to modify one of those signals prior to comparison in a manner to compensate for such.non-linearities.

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