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    • 76. 发明公开
    • LINEAR DIGITAL PROPORTIONAL PIEZOELECTRIC VALVE
    • 线性数字比例PIEZOELEKTRISCHES VENTIL
    • EP2994672A1
    • 2016-03-16
    • EP14722780.5
    • 2014-04-23
    • Koninklijke Philips N.V.
    • O'NEILL, Francis PatrickCONSIGLIO, Ronald Paul
    • F16K1/52F16K31/00
    • F16K31/004A61B5/0235A61B5/055A61B5/082A61B2503/045A61B2505/05A61M16/01A61M16/202A61M16/203A61M2205/057A61M2230/30F16K1/443F16K11/044F16K31/005G01R33/28
    • An electrically controlled valve (10) includes a shaft (36), a piezoelectric motor (34) affixed to an end of the shaft (36), a controller (54), a follower (42), a valve member (40), and a valve seat (28). The piezoelectric motor (34) drives the shaft with a first direction and a second opposite direction. The controller (54) provides power to the piezoelectric motor (34) to move the shaft with a first speed and a second speed, the first speed being faster that the second speed. The follower (42) receives the shaft (36), and slides relative to the shaft in response to the shaft moving with the first speed, and grips and moves with the shaft in response to the moving with the second speed and includes a valve member (40). The valve member (40) moves with the follower (42). The valve member (40) is configured to be moved by the follower (42) against the valve seat (28) to restrict fluid flow and to be moved by the follower (42) away from the valve seat to increase the fluid flow.
    • 电控阀(10)包括轴(36),固定到轴(36)的端部的压电马达(34),控制器(54),从动件(42),阀构件(40) 和阀座(28)。 压电马达34以第一方向和第二相反方向驱动轴。 控制器(54)向压电马达(34)提供动力以使第一速度和第二速度移动轴,第一速度比第二速度快。 随动件(42)接收轴(36),并且响应于轴以第一速度移动而相对于轴滑动,并且响应于第二速度的移动而与轴一起移动并移动,并且包括阀构件 (40)。 阀构件(40)随着跟随器(42)移动。 阀构件(40)被构造成由从动件(42)抵靠阀座(28)移动以限制流体流动并且由从动件(42)移动离开阀座以增加流体流动。