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Pilot fluid distributor

A fluid distributor and pilot technology, applied to valve details, multi-way valves, engine components, etc., can solve the problems of loose solenoid valve closure, high manufacturing cost, and wear failure, and achieve reliable operation, simple structure, and easy manufacturing The effect of low running cost

Pending Publication Date: 2018-07-20
天津海辰华环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The fluid distributor controlled by solenoid valve has the characteristics of simple structure, precise control, and online remote control. However, in the existing fluid distributor controlled by solenoid valve, the solenoid valve is directly arranged in the working fluid pipeline, and the working fluid flows through The internal passage of the solenoid valve, so the nature of the working fluid has a great influence on the reliability and stability of the solenoid valve.
When the working fluid has a high pressure, the solenoid valve is required to have high power and high rigidity, resulting in high energy consumption and high manufacturing cost of the solenoid valve; when the working fluid has a large flow rate, the solenoid valve is required to have a large channel, which in turn causes The solenoid valve is bulky, which increases the production cost; when solids are transported in the working fluid, it is easy to cause the solenoid valve to not close tightly and wear out.

Method used

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Examples

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Effect test

Embodiment 1

[0016] Embodiment 1: see attached figure 1 , Pilot-operated fluid distributor, mainly equipped with an electronic control unit 1, three solenoid valves 2, a pilot line 3 connected to the solenoid valve, a pilot valve 4 connected to the pilot line, and a fluid branch line 5 connected to the pilot valve , the main fluid pipeline 6 communicating with the fluid branch pipeline, and the pilot valve is provided with a piston 4.1. The specific operation process is: the electronic control unit issues a command, the left solenoid valve and the middle solenoid valve A port are opened, and the B port is closed, and the pistons in the left pilot valve and the middle pilot valve move to the right of the pilot valve under the push of the pilot fluid. In the side position, the fluid branch pipeline is in the connected state, and the working fluid enters the corresponding branch pipeline from the main pipeline; at the same time, the A port of the right solenoid valve is closed, and the B port...

Embodiment 2

[0017] Embodiment 2: see attached figure 2 Compared with Example 1, an elastic element 4.2 is added to the pilot valve. The specific operation process is as follows: the electronic control unit issues an instruction, the A port of the left solenoid valve opens, and the piston in the left pilot valve moves under the push of the pilot fluid. To the right of the pilot valve, the left fluid branch pipeline is connected, and the working fluid enters the left branch pipeline from the main pipeline; at the same time, the middle solenoid valve and right solenoid valve A port are closed, the middle pilot valve and the right pilot Pushed by the elastic element, the piston in the valve moves to the left side of the pilot valve, and the corresponding fluid branch pipeline is disconnected, and the working fluid cannot enter the corresponding branch pipeline.

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Abstract

The invention provides a pilot fluid distributor. The pilot fluid distributor comprises an electronic control unit (1), at least two electromagnetic valves (2), pilot pipelines (3) connected with theelectromagnetic valves, pilot valves (4) connected with the pilot pipelines, fluid branch pipelines (5) connected with the pilot valves, and a fluid main pipeline (6) communicating with the fluid branch pipelines; and the pilot valves are provided with pistons (4.1). The pilot fluid distributor is characterized in that the electromagnetic valves control connection and disconnection of the pilot pipelines; pilot fluids in the pilot pipelines control connection and disconnection of the pilot valves; the pilot valves control connection and disconnection of the fluid branch pipelines; and connection and disconnection of each electromagnetic valve are independent, and are totally controlled by program instructions of the electronic control unit. The whole system is simple in structure, reliablein operation and low in manufacturing and operation cost.

Description

technical field [0001] The invention relates to a fluid distributor, in particular to a pilot type fluid distributor controlled by an electromagnetic valve. Background technique [0002] The fluid distributor controlled by solenoid valve has the characteristics of simple structure, precise control, and online remote control. However, in the existing fluid distributor controlled by solenoid valve, the solenoid valve is directly arranged in the working fluid pipeline, and the working fluid flows through The internal channel of the solenoid valve, so the nature of the working fluid has a great influence on the reliability and stability of the solenoid valve. When the working fluid has a high pressure, the solenoid valve is required to have high power and high rigidity, resulting in high energy consumption and high manufacturing cost of the solenoid valve; when the working fluid has a large flow rate, the solenoid valve is required to have a large channel, which in turn causes ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K11/22F16K31/40
CPCF16K11/22F16K31/406
Inventor 章大初
Owner 天津海辰华环保科技股份有限公司
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