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Longitudinal vibration sandwich type passive jet propulsion device and driving method thereof

A water-jet propulsion, sandwich-type technology, which is applied to the components of pumping devices for elastic fluids, variable displacement pump components, machines/engines, etc., can solve the problems of low power density and small driving force, and achieve high power The effect of high density, large driving force and broad application prospects

Inactive Publication Date: 2016-05-18
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the technical problems of small driving force and low power density in current piezoelectric water jet propulsion devices, the present invention discloses a longitudinal vibration sandwich type passive water jet propulsion device and its driving method

Method used

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  • Longitudinal vibration sandwich type passive jet propulsion device and driving method thereof
  • Longitudinal vibration sandwich type passive jet propulsion device and driving method thereof
  • Longitudinal vibration sandwich type passive jet propulsion device and driving method thereof

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specific Embodiment approach 1

[0028] Specific implementation mode one: combine Figure 1~Figure 20 This embodiment will be described. This embodiment provides a specific implementation of a longitudinal vibration sandwich passive water jet propulsion device. The longitudinal vibration sandwich type passive water jet propulsion device is mainly composed of valve stack 1, valve metal substrate 2, end cover 3, supporting rubber ring 4, sealing ring 5, cavity 6, valve umbrella valve 7, The pump is composed of an umbrella valve 8, fastening bolts 9, a pump driving assembly 10, an enlarged diaphragm 11, a clamping block 12, a pump metal base plate 13, a front end cover 14 and a fastening screw 15.

[0029]The valve stack 1 is a low-voltage stack piezoelectric ceramics model XP series manufactured by Harbin Core Tomorrow Technology Co., Ltd., one end of which is glued to the valve metal substrate 2 by epoxy resin, and the other side is The end is pasted on the inner cavity wall 3-1-1 of the end cover 3 by epoxy...

specific Embodiment approach 2

[0041] Specific Embodiment 2: This embodiment provides a specific implementation of a method for driving a longitudinal vibration sandwich type passive water jet propulsion device.

[0042] The specific embodiment of the driving method of the longitudinal vibration sandwich type passive water jet propulsion device is: the valve uses the stack 1 to apply an AC excitation electric signal to generate shortening and deformation, so that the volume of the valve chamber 6-1 increases. At this time, the umbrella valve 7 for the valve is forced to open, and the fluid flows into the valve cavity 6-1 through the water inlet 6-5 of the valve cavity; The pump driving assembly 10 applies an AC excitation electric signal to generate shortening deformation, so that the volume of the valve chamber 6-1 becomes smaller, and the volume of the pump chamber becomes larger. At this time, the valve umbrella valve 7 is forced to close, and the pump The umbrella valve 8 is forced to open, and the flui...

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Abstract

The invention discloses a longitudinal vibration sandwich type passive jet propulsion device and a driving method thereof, and solves such problems as low driving force and low power density in a traditional piezoelectric jet propulsion device. The longitudinal vibration sandwich type passive jet propulsion device comprises a valve stack, a valve metal substrate, an end cover, a support rubber ring, a sealing ring, a cavity, a valve umbrella-shaped valve, a pump umbrella-shaped valve, a fastening bolt, a pump driving module, an amplification film, a clamping block, a pump metal substrate, a front end cover and a fastening screw; the cavity is provided with a valve cavity water inlet, a pump cavity water inlet and a funnel-shaped water outlet; valve bases are arranged in the valve cavity water inlet and the pump cavity water inlet; and the water outlet has a drainage structure. Electric signals are applied to the valve stack and the pump driving module to excite the valve stack and the pump driving module to respectively generate telescopic deformation, so that the volumes of a valve cavity and a pump cavity are alternately changed, the suction and the jet of a fluid are realized, and the device propulsion is realized under reactive force of jet. The longitudinal vibration sandwich type passive jet propulsion device has such advantages as high driving force and high power density, and is broad in application prospect in such fields as micro jet and military detection.

Description

technical field [0001] The invention relates to a longitudinal vibration sandwich type passive water jet propulsion device and a driving method thereof, belonging to the technical field of water jet propulsion. Background technique [0002] The water-jet propulsion device is a micro-propulsion device that uses the reaction force of the water jetted by the propulsion pump to generate propulsion, and then realizes the motion output. As the power source of the propulsion device, the pump plays an important role in the water jet propulsion technology. At present, the propulsion pumps used in the water jet propulsion device are mainly axial flow pumps, mixed flow pumps and centrifugal pumps. This kind of power pump has low power density, resistance Disadvantages such as poor interference ability and complex structure make it difficult for water jet propulsion technology to meet the application requirements in the fields of robots, small detection, and precision instruments. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B43/04F04B53/10F04B53/16F04B53/00
Inventor 何丽鹏李绍松陈栋程光明
Owner CHANGCHUN UNIV OF TECH
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