Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Gas-assisted atomized liquid metering jet apparatus

An atomized liquid, gas-assisted technology, applied in exhaust devices, mufflers, air quality improvement and other directions, can solve the problems of inconvenient installation and high cost

Active Publication Date: 2016-08-03
ZHEJIANG FAI ELECTRONICS
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For solving the above problems, there are many factors such as high cost and inconvenient installation in the prior art, which need to be further improved.

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
  • Gas-assisted atomized liquid metering jet apparatus
  • Gas-assisted atomized liquid metering jet apparatus
  • Gas-assisted atomized liquid metering jet apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Such as figure 1 Shown is a schematic structural diagram of the first embodiment of the liquid metering injection device provided by the present invention, including a pulse pump 1, a mixing device 2, a liquid nozzle 3a, a compressed air source 27, an injector 4, a controller 5, and a mixed flow delivery pipe 32; the mixing device 2 includes a gas restricting hole 26 and a gas-liquid mixing chamber 24; the controller 5 drives and controls the operation of the liquid metering and injection device.

[0026] The pulse pump 1 is a sleeve-piston type pulse pump structure, including an electromagnetic drive device 14 and a plunger pump assembly 10 . Among them, the plunger pump assembly 10 includes a sleeve 20, a plunger 19, a return spring 17, an inlet valve 11 and an outlet valve 16, the sleeve 20 and the plunger 19 are closely matched to form a pressure delivery volume 12, and the return spring 17 acts on the sleeve 20. The electromagnetic device 14 includes a coil 13 , ...

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

A gas-assisted atomized liquid metering jet apparatus comprises a gas limiting hole, a jet hole, a liquid nozzle and a gas-liquid mixing cavity; the limiting hole is positioned at the upstream of the gas-liquid mixing cavity and connected with a compressed air source; and the jet hole is positioned at the downstream of the gas-liquid mixing cavity and communicated to an engine exhaust pipe. The gas-assisted atomized liquid metering jet apparatus is characterized in that the flow area rate of the limiting hole and the jet hole is less than 1, the gas reaches a critical state in the limiting hole, so that pressure in the mixing cavity remains stable relative to the engine exhaust pipe.

Description

technical field [0001] The invention belongs to the technical field of engine exhaust aftertreatment, and in particular relates to a NOx selective catalytic reduction (SCR) system for engine exhaust aftertreatment, a regenerative injection system for diesel particulate capture and filtration (DPF), and their control technologies. Background technique [0002] Under the test of current severe environmental problems, vehicles powered by internal combustion engines need to install exhaust after-treatment systems in order to meet increasingly stringent emission requirements. For example, at present, it is mainly used for SCR (Selective Catalytic Reduction) technology for catalytic treatment of NOx and other pollutants in diesel engine exhaust, and technology for capturing diesel particulate matter (DPF) regeneration, etc. [0003] SCR technology needs to quantitatively inject 32.5% urea aqueous solution (also called diesel exhaust treatment fluid DEF = Diesel Exhaust Fluid, or a...

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
IPC IPC(8): F01N3/28
CPCY02A50/20
Inventor 郗大光张平谈秉乾
Owner ZHEJIANG FAI ELECTRONICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com