Regulator
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United States of America Patent
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Jun 17, 2014
Grant Date -
Oct 11, 2012
app pub date -
May 10, 2012
filing date -
Dec 10, 2009
priority date (Note) -
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Abstract
A regulator (108) comprising a first chamber (132), and second chamber (134) and an actuator (130). The second chamber (134) is coupled to the first chamber (132) through an aperture (156). The actuator (130) is arranged to the adjust the size of the aperture (156) according to a pressure differential between fluid pressure in the first chamber (132) and a pressure reference (36). The rate of change of the cross sectional area of the aperture (156) is arranged to have a non-linear response to a change in the pressure differential.
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