Check patentability & draft patents in minutes with Patsnap Eureka AI!

A liquid fuel metering device

A liquid fuel and metering device technology, which is applied in the direction of turbine/propulsion fuel delivery system, fuel control of turbine/propulsion device, charging system, etc., can solve the problem of affecting the inlet and outlet pressure difference, affecting the opening area of ​​liquid fuel, and measuring Poor linearity and other problems, to achieve the effect of enhancing linearity, improving liquid fuel metering accuracy, and enhancing stability

Active Publication Date: 2020-12-15
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When adjusting liquid fuel, it will not only affect the opening area of ​​liquid fuel metering, but also affect the pressure difference between inlet and outlet (P 4 -P 3 ), resulting in poor linearity of liquid fuel metering

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A liquid fuel metering device
  • A liquid fuel metering device
  • A liquid fuel metering device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0029] figure 1 A schematic structural diagram of a liquid fuel metering device is shown, figure 2 The working flow diagram of the differential pressure valve is shown, image 3 The working flow diagram of the constant pressure valve is shown, Figure 4 A workflow diagram of liquid fuel metering is shown. combine Figure 2-4 ,right figure 1 The structure shown and how it works are explained in detail.

[0030] The liquid fuel metering device in the embodiment of the present disclosure includes a liquid fuel metering unit I and a liquid fuel control unit II, wherein the liquid fuel metering unit I includes a metering valve 1, a differential pressure valve 2 and a constant pressure valve 3, and the liquid fuel con...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a liquid fuel metering device. The device comprises a liquid fuel metering unit (I) and a liquid fuel control unit (II), wherein the liquid fuel metering unit (I) comprises a metering valve (1), a differential pressure valve (2) and a constant pressure valve (3); the outlet end of the metering valve (1) communicates with the outlet end of the differential pressure valve (2);the pressure difference between the inlet end of the differential pressure valve (2) and the outlet end of the differential pressure valve (2) is constant; the pressure change amplitude of the outletend of the constant pressure valve (3) is smaller than a preset value; the liquid fuel control unit (II) is connected to the metering valve (1) through a first pipeline (4) and a second pipeline (5),and is used for controlling the area of the outlet end of the metering valve (1); the liquid fuel control unit (II) communicates with the outlet end of the constant pressure valve (3) through a thirdpipeline (6). By keeping the pressure difference between the liquid fuel outlet end and the inlet end constant, the linearity of liquid fuel control is enhanced, and the metering precision of the liquid fuel is improved.

Description

technical field [0001] The present disclosure relates to a liquid fuel metering device. Background technique [0002] When a gas turbine or an aeroengine is working, it is necessary to precisely control the amount of fuel. Therefore, it is particularly important to develop a high-precision device and method suitable for liquid fuel metering. However, current liquid fuel metering devices and methods have disadvantages such as low liquid fuel metering accuracy and poor linearity, making it difficult to achieve high-precision metering of liquid fuel. [0003] The main reason is that the liquid fuel metering system is a nonlinear system, and the liquid fuel flow The flow of liquid fuel is related to the pressure difference between the inlet and outlet of liquid fuel metering, the area of ​​liquid fuel metering port and other factors. When adjusting liquid fuel, it will not only affect the opening area of ​​liquid fuel metering, but also affect the pressure difference between ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F02C9/26
Inventor 曾德堂谭春青张永军闫丽萍董学智刘锡阳张华良高庆
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com