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Electrically modulated proportional throttle control valve

A throttling control valve and electric modulation technology, applied in the field of hydraulic system, can solve the problems of difficult preparation and processing technology, easy impact during use, and inability to realize automatic control, and achieve light weight, easy acceptance, and simple overall structure. Effect

Inactive Publication Date: 2013-01-16
SHANGHAI LIXIN HYDRAULIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The proportional throttling control valve in the prior art has many components and complex structure, and there are great difficulties in the preparation and processing technology. Moreover, the existing proportional throttling control valve cannot realize automatic control, and it is easy to produce shock phenomenon during use.

Method used

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  • Electrically modulated proportional throttle control valve
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Examples

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Embodiment

[0030] The electronically modulated proportional throttle control valve of the present invention can be used in meter-in, meter-out and bypass throttling. The rated flow rate of the electronically modulated proportional throttle control valve is related to the pressure difference at the throttle port. The greater the pressure difference, the greater the flow rate. The larger, on the contrary, the smaller the pressure difference, the smaller the flow. Combination of electronically modulated proportional throttle control valve and pressure compensating valve can function as a proportional speed regulating valve.

[0031] The electronically modulated proportional throttle control valve of the present invention is in a power-off state, and oil port 2 to oil port 1 are closed. When current is applied to coil 5, a controlled increased flow is made from port 2 to port 1. If the pressure at port 1 exceeds the pressure at port 2, the main spool 15 allows reverse flow. The cylindrical ...

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Abstract

The invention discloses an electrically modulated proportional throttle control valve comprising a main valve, a pilot control assembly and an electromagnet, but the connection form of the valve is a threaded type, so that the whole structure is simple, the size is small, the weight is light, the positive effects of compactness, high-efficiency and energy-saving of a hydraulic system are achieved conveniently, and meanwhile, the manufacturing cost is also greatly reduced, so that the valve is more likely to be accepted by the market.

Description

technical field [0001] The invention relates to the technical field of hydraulic systems, in particular to a proportional throttle control valve controlled by an electromagnet. Background technique [0002] The proportional throttling control valves in the prior art have many components and complex structures, and there are great difficulties in preparation and processing. Moreover, the existing proportional throttling control valves cannot realize automatic control, and shocks are likely to occur during use. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an electronically modulated proportional throttle control valve to overcome the problems existing in the prior art. [0004] In order to solve the problems referred to above, technical scheme of the present invention is like this: [0005] An electronically modulated proportional throttle control valve, comprising: [0006] A proportional electromagnet, an ar...

Claims

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Application Information

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IPC IPC(8): F15B13/02
Inventor 袁才富米根祥朱剑根沈至伟
Owner SHANGHAI LIXIN HYDRAULIC
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