proportional valve

A proportional valve and valve body technology, applied in the field of proportional valves, can solve the problems of fixed maximum flow and cannot be changed, and achieve the effect of avoiding poor control accuracy, meeting the requirements of flow control accuracy, and having a compact structure.

Active Publication Date: 2018-09-25
HEFEI XIELI HYDRAULIC TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention proposes a proportional valve, which solves the problem that the maximum flow rate of the proportional valve in the prior art is fixed and cannot be changed

Method used

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] like Figure 1-5 As shown, the proportional valve in this embodiment includes a valve body 1 and a valve core 2 located inside the valve body 1 .

[0029] see figure 2 , the valve body 1 is cylindrical, and the valve body 1 has a cylindrical housing chamber 3 inside, and the housing chamber 3 is divided into several sections of single chambers from top to bottom; the upper part of each single chamber has an annular Outward expansion of the extension ...

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Abstract

The present invention proposes a proportional valve, including a valve body and a valve core; inside the valve body there is an accommodating cavity, which is divided into several sections of single cavities from top to bottom; the upper part of each single cavity has an annular extension cavity; each The valve body on both sides of the middle part of the single chamber is symmetrically provided with an inlet and an outlet; the valve core includes a number of single cores stacked from top to bottom, and several single cores are fixed by string rods, and the top of the string rods is connected to The output shaft of the driving motor; the single core includes a working single core and a sealed single core; the single core has a cylindrical core, and the core is accommodated in a single cavity; the upper part of the core has an annular extension edge, which is accommodated In the extension cavity; the core body of the working single core is provided with a through flow channel, and when one end of the flow channel is aligned with the inlet, the other end of the flow channel is aligned with the outlet. The present invention can adjust the maximum flow rate of the proportional valve, can be applied to occasions requiring various flow rates, and can meet the requirements of flow control accuracy.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a proportional valve. Background technique [0002] A proportional valve is a variable flow valve that can output a continuous flow range. A proportional valve can provide a regulated fluid flow that varies from zero flow to the maximum flow of the valve. However, the maximum flow rate of the valve is fixed and cannot be changed. In some application fields, when the demand for the maximum flow rate is not large, the existing proportional valve with a larger maximum flow rate can be used, but this will reduce the accuracy of flow control. Using a new proportional valve will increase the cost and cause waste of existing equipment. Contents of the invention [0003] The invention proposes a proportional valve, which solves the problem in the prior art that the maximum flow rate of the proportional valve is fixed and cannot be changed. [0004] Technical scheme of the present inve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K5/04F16K5/08F16K27/06F16K31/04
CPCF16K5/0407F16K27/065F16K31/041
Inventor 汪成刚邓继周童心
Owner HEFEI XIELI HYDRAULIC TECH CO LTD
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