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A parent-child fluid oscillator

An oscillator and the first fluid technology, applied in fluid pressure actuation devices, fluid pressure actuation system components, liquid injection devices, etc., can solve the problem that the jet frequency does not have independent controllability, etc.

Active Publication Date: 2021-04-30
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a parent-child fluid oscillator in order to overcome the problems that the jet oscillation frequency linearly depends on the volume flow in the traditional fluid oscillator, and the jet frequency generated by the fluid oscillator does not have independent controllability.

Method used

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  • A parent-child fluid oscillator
  • A parent-child fluid oscillator
  • A parent-child fluid oscillator

Examples

Experimental program
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Effect test

Embodiment

[0031] In order to facilitate the understanding of the structural features of the present invention, it is stipulated here that the mother board 1 is taken as the lower position, and vice versa as the upper position. The first inflow pipe 2 is in the front position, otherwise it is in the rear position. The first connecting pipe 3 is left orientation, otherwise it is right orientation.

[0032] (1) see figure 1 , a mother-child fluid oscillator includes from bottom to top: motherboard 1, first inflow pipe 2, first connecting pipe 3, second connecting pipe 4, first support pipe 5, second support pipe 6, sub-board 7. The second inflow pipe 8.

[0033] (2) see image 3 , the mother board 1 is a square shell with a fluid channel inside, mainly including: the first inflow inlet 9, the first converging section 10 of the first throat, the first throat 11, the first left flow channel 12 and the first right flow Road 13. Wherein, the first inflow inlet 9 , the front converging sec...

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Abstract

The invention relates to a mother-child fluid oscillator, comprising: a mother board, a daughter board, a first connecting pipe and a second connecting pipe, the inner part of the mother board is a fluid oscillator, the inner part of the daughter board has symmetrically arranged fluid passages, the daughter board and the mother board The inlets of the board are separately supplied with pressurized fluid, the two outlets of the mother board are respectively connected to the two control ports of the daughter board, and the whole oscillator is connected with the external environment through the outlet of the daughter board. Compared with the prior art, the present invention has excellent scalability and integration, can generate jets with a frequency from a few hertz to tens of thousands of hertz, and can produce a strong mixing effect when continuously oscillating; the fluid oscillator can be more effective Controlling the flow efficiently, the oscillation frequency of the jet is not dependent on the flow rate variation of the volume flow, but is individually controllable.

Description

technical field [0001] The invention relates to a fluid oscillator, in particular to a mother-child fluid oscillator. Background technique [0002] In the prior art, a fluid oscillator is a fluidic component that can generate spatial oscillations and temporal continuity through static components. Its basic principle is: when the fluid of a certain pressure enters the mixing chamber of the fluid oscillator from the inlet, due to the Coanda effect, the main flow will inevitably adhere to the wall on one side, so that along the wall, it will be divided into two paths, one path It goes out from the throat and becomes an external jet, and the other part flows back to the root of the main flow along the feedback channel, prompting the main flow to turn over and attach to the wall on the other side, then the external jet will turn to the other side at the same time to produce an oscillation effect , and at the same time, the remaining main flow enters the feedback channel on this ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B21/12B05B17/04
CPCB05B17/04F15B21/12
Inventor 温新李子焱陈子玉刘应征
Owner SHANGHAI JIAO TONG UNIV