A Piezoelectric Thin Film Throttle Valve
A film type, throttle valve technology, applied in valve devices, multi-port valves, fluid pressure actuating devices, etc., can solve the problems of single outlet pressure and flow regulation, unable to achieve differential regulation, etc., and achieve the effect of ensuring stability
Inactive Publication Date: 2018-04-17
SHANDONG UNIV
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- Description
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- Application Information
AI Technical Summary
Problems solved by technology
The existing piezoelectric film throttle valve is single-sided, which can only realize the pressure and flow adjustment of a single outlet, but cannot realize differential adjustment.
Method used
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Embodiment Construction
[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0023] Such as figure 1 As shown, a piezoelectric diaphragm 13 throttle valve includes an upper valve body 3, a diaphragm 13, a lower valve body 17 and a fixed plate 8 installed sequentially from top to bottom, and the diaphragm 13 is connected with the upper valve body 3 and A sealing device is provided between the lower valve body 17, and a sealing device is provided on the contact surface between the upper valve body 3 and the lower valve body 17 and the film 13, which can increase the pressure of the fluid medium and ensure that the fluid medium will not leak and affect the use. Effect. The sealing device is a sealing ring or a sealant. The conventionally applied sealing ring and sealant are more mature, which can prevent the fluid medium from corroding the valve body while achieving sealing, prolong the service life, and reduce the cost of later m...
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The invention discloses a piezoelectric thin film type throttling valve. The piezoelectric thin film type throttling valve comprises an upper valve body, a thin film, a lower valve body and a fixing plate, wherein the upper valve body, the thin film, the lower valve body and the fixing plate are sequentially installed from top to bottom, the upper valve body is composed of a first inner ring cavity and a first outer ring cavity, the first inner ring cavity and the first outer ring cavity are sequentially arranged from inside to outside and communicated with each other, the lower valve body is composed of a second inner ring cavity and a second outer ring cavity, the second inner ring cavity and the second outer ring cavity are sequentially arranged from inside to outside and communicated with each other, a first ejector rod and a second ejector rod are arranged at the center of the first inner ring cavity and the center of the second inner ring cavity respectively, the lower end of the first ejector rod makes contact with the top face of the thin film, the upper end of the first ejector rod makes contact with a driver, the upper end of the second ejector rod makes contact with the bottom face of the thin film, and the lower end of the second ejector rod is supported by a disc spring. Compared with an existing piezoelectric thin film type throttling valve which is provided with an ejector rod on one surface, through arrangement of the ejector rods on the two surfaces of the thin film, differential regulation of pressure of fluid media can be achieved.
Description
technical field [0001] The invention relates to a piezoelectric film throttle valve. Background technique [0002] Throttle valve is a valve that controls fluid flow and pressure by changing the throttle area or throttle length. It is generally used in hydraulic systems. Traditional film throttle valves can only passively adjust the throttle parameters to achieve optimal control of equipment. control. The existing piezoelectric film throttle valve is single-sided, which can only realize the pressure and flow adjustment of a single outlet, but cannot realize differential adjustment. Contents of the invention [0003] In order to solve the above problems, the present invention proposes a piezoelectric diaphragm throttle valve. The diaphragm of the piezoelectric diaphragm adopts the mode of setting annular grooves on both sides, which can realize the oil transfer in the upper and lower oil transfer channels. Differential regulation of volume and output pressure. [0004] I...
Claims
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IPC IPC(8): F16K11/00F15B13/02
CPCF15B13/02F16K11/00
Inventor 潘伟刘自超路长厚李华超
Owner SHANDONG UNIV