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Pump

A pump chamber and moving fluid technology, applied in the field of pumps, can solve problems such as performance degradation, inability to spit out liquid, and no effect

Inactive Publication Date: 2008-12-03
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The structure of Non-Patent Document 1 has the problem that when air bubbles enter the pump, even if the volume of the pump changes, the pressure in the pump chamber cannot be sufficiently increased due to the influence of the air bubbles, and the performance deteriorates. Furthermore, when a certain amount or more When air bubbles enter the pump, the liquid cannot be discharged
[0009] The air bubble removal device as in Patent Document 1 is installed on the flow path in a circulating liquid cooling device such as a cooling system that closes electronic equipment, and can remove air bubbles in the working fluid and reduce the inflow of air bubbles into the pump chamber. But for air bubbles that have entered the pump chamber, it has no effect

Method used

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Effect test

no. 1 Embodiment approach

[0073] First, use figure 1 The pump structure of the first embodiment of the present invention will be described. figure 1 , shows a longitudinal section of the pump according to the first embodiment of the present invention. figure 2 , is to be installed on figure 1 The plan view of the state after the film protective cover 401 and the annular resin film 412 on the shown pump are taken off from the pump is figure 1 The A-A line profile. A bottom plate 321 is fixed to the bottom of the cylindrical case 301 , and a multi-layer piezoelectric element 311 is fixed to the upper surface of the bottom plate 321 . A reinforcing plate 312 is fixed to the upper surface of the multi-layer piezoelectric element 311 , and a spacer 313 is fixed to both the upper surface of the reinforcing plate 312 and the edge of the case 301 .

[0074] On the upper part of the partition plate 313 , the channel member 101 is fixed with screws (not shown) so as to sandwich the annular member 331 and th...

no. 2 Embodiment approach

[0108] Next, a second embodiment will be described.

[0109] The structure of the pump of the second embodiment (refer to figure 1 ), many structures are common to the pump structure of the above-mentioned first embodiment, so the common parts are marked with the same reference numerals, etc., and descriptions are omitted, and the following descriptions will focus on the differences.

[0110] In the structure of the pump, the swirling flow generating structure and the structure of the check valve which is a fluid resistance element are different.

[0111] Fig. 8 is a side sectional view showing valve operation. Similar to the first embodiment, a pump chamber is formed on the lower side of the flow path member 101 . The inclined flow path 223 is obliquely penetrated with respect to the lower surface of the flow path member 101 , and a check valve unit composed of a valve seat 221 and a ball 222 is press-fitted and fixed inside the inclined flow path 223 .

[0112] The valve ...

no. 3 Embodiment approach

[0124] Next, a third embodiment will be described.

[0125] The structure of the pump of the 3rd embodiment (refer to figure 1 ), many structures are common to the structure of the pump of the above-mentioned first embodiment, so the common parts are marked with the same reference numerals, etc., and description thereof is omitted, and the following description will focus on the differences.

[0126] The pump according to the third embodiment is different from the pump according to the above-mentioned first embodiment in that it includes a forced flow part (flow speed increasing device) that accelerates the flow speed of the working fluid in the pump chamber 125 .

[0127] Figure 12 , shows the longitudinal section of the pump according to the third embodiment. in addition, Figure 13 ,yes Figure 12 The C-C line profile.

[0128] Such as Figure 13 As shown, the pump of the third embodiment includes an annular member 341 having an outer chamber 342 surrounding the pump c...

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PUM

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Abstract

The invention discloses a modifying method of pump chamber 125, which is characterized by the following: designing the pump chamber 125 as almost revolving body shape with revolving current generating structure; allocating outlet flow way with the rotary shaft of revolving body shape of pump chamber 125; managing problems of high-load pressure and more spew flow quantity and less synthesizing inertia value of inlet flow path than pump.

Description

technical field [0001] The present invention relates to a pump that moves a working fluid by changing the volume of a pump chamber through a piston, a diaphragm (vibrating plate), etc., and particularly relates to a small-sized high-output pump. Background technique [0002] In the past, the inventors of the present invention have developed a pump as follows, which uses the inertia effect of the fluid to cope with high load pressure by designing a flow path structure with a large inertia value instead of the check valve of the outlet flow path, This is a high-output and highly reliable pump with a large discharge flow rate (see Non-Patent Document 1). [0003] In addition, in fluid systems that use liquid as the operating fluid, such as centrifugal pumps, and pumps whose performance deteriorates when gas stays inside the pump, as the fluid drive source, there are often devices that generate swirling flow in the flow path to remove the operating fluid. A device for air bubbl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B53/06F04B43/04
Inventor 濑户毅高城邦彦
Owner SEIKO EPSON CORP