02-02-2017 дата публикации
Номер: US20170030474A1
Принадлежит:
The present invention relates to pinch valves and in particular to such pinch valves controlled with a piezoelectric linear actuator assembly for controlling the flow through a flexible tube disposed within a pinch valve body by controlling the position of a plunger relative to a flexible tube at a control point along the length of said tube. 1100505254561041210110106161210112100) A control module () for controlling a pinch valve assembly ( , , ,) comprising at least one piezoelectric linear actuator () for controlling the flow through a flexible tube () disposed within a pinch valve body ( ,) by controlling the position of a plunger ( , ) relative to said flexible tube () at a control point () along the length of said tube () , the control module () including:{'b': 102', '10', '110, 'a) a housing () having at least one surface adapted for associating with a pinch valve body (, );'}{'b': 102', '104', '106', '16', '16', '106', '12, 'b) said housing () including at least one piezoelectric linear actuator () that is associated with a plunger (, ) to control the position of said plunger (,) relative to the flexible tube () for controlling the flow therethrought;'}{'b': 104', '104', '104', '104', '104', '104', '104', '104', '104', '104', '108', '108', '102', '108', '104', '106', '16', '10', '110', '108', '108, 'i': e', 'b', 'e', 's', 'b', 'e', 's', 'e', 's', 's', 's', 's, 'c) said piezoelectric linear actuator () comprising a piezoelectric or electrostrictive substrate (), with an electrode provided on each of both surfaces of the piezoelectric or electrostrictive substrate; an elastic body (), to one surface or each of both surfaces of which the piezoelectric or electrostrictive substrate () is attached; a movable shaft () coupled at an end thereof to the elastic body () or the piezoelectric or electrostrictive substrate () attached to the elastic body, the moveable shaft () being operated in conjunction with displacement of the piezoelectric or electrostrictive ...
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