Composite bluff body valveless piezoelectric pump
A valveless piezoelectric pump and bluff body technology, which is applied in the direction of pumps, liquid variable displacement machines, pumps with flexible working elements, etc., can solve the problems of inability to achieve flow resistance difference and pumping effect, and achieve miniaturization Effect
Active Publication Date: 2017-06-27
QINGDAO AGRI UNIV
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It can also be seen from the accompanying drawings of the previous patent application that the bluff body is uniformly distributed on the pump base. The shape of the bluff body is regular and the arrangement structure is uniform, which cannot achieve better flow resistance difference and pumping effect
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[0032] The present invention will be further described below in conjunction with the accompanying drawings.
[0033] like Figure 1 to Figure 5 Shown:
[0034]Composite balustrade valveless piezoelectric pump, including pump base 2, pump side wall, pump upper cover, the three surround pump chamber 1, piezoelectric vibrator 3 is installed on the end surface of pump chamber 1; pump base 2 is provided with balustrade The side wall of the pump is provided with a first fluid inlet and outlet pipe 6 and a second fluid inlet and outlet pipe 7 connecting the pump cavity and the outside world. The first fluid inlet and outlet pipe 6 and the second fluid inlet and outlet pipe 7 are arranged symmetrically on the pump side wall. Including the front conductor 4 and the main resistance body 5, the front conductor 4 and the main resistance body 5 are symmetrical structures, the symmetry axis 14 of the two coincides, and the two ends of the symmetry axis 14 are respectively facing the first ...
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Special-shaped composite bluff body valveless piezoelectric pump, the piezoelectric vibrator is installed on the end surface of the pump cavity; the bluff body is set on the pump base, and the first and second fluid inlet and outlet tubes connecting the pump cavity and the outside world are set on the pump side wall. 1. The second fluid inlet and outlet pipes are symmetrically arranged on the side wall of the pump. The bluff body includes a front conductor and a main bluff body. Both the front conductor and the main bluff body are symmetrical structures. 1. The second fluid inlet and outlet pipe; the front conductor has a drainage surface and a blocking surface, and the drainage surface faces the first fluid inlet and outlet pipe. When the fluid enters and exits the pump chamber, it acts as a shunt guide; , play the role of blocking flow guiding; the main blocking body includes a drainage surface and a blocking surface, the drainage surface faces the blocking surface of the front conductor, and the blocking surface faces the second fluid inlet and outlet pipe. The special-shaped composite bluff body valveless piezoelectric pump can achieve better pumping effect than the valveless piezoelectric pump with regular shape bluff body.
Description
technical field [0001] The invention belongs to the technical field of fluid machinery and relates to a composite bluff body valveless piezoelectric pump. Background technique [0002] Compared with traditional pumps, piezoelectric pumps do not require an additional drive motor, but use the inverse piezoelectric effect of piezoelectric ceramics to deform the piezoelectric vibrator, and then change the volume of the pump chamber through the deformation to achieve fluid output or use piezoelectric vibrators to generate Waves to transfer liquid. According to whether there is a valve body in the pump cavity, the piezoelectric pump can be divided into a valve piezoelectric pump and a valveless piezoelectric pump. The fluid inlet and outlet of the valveless piezoelectric pump are connected, and the function of "valve" is realized by the special shape of the pipeline, the structure of the pump chamber or the setting of a flow blocking device in the pump chamber. [0003] The bluf...
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IPC IPC(8): F04B43/04
Inventor 纪晶胡彩旗李胜多
Owner QINGDAO AGRI UNIV