Flow pattern controllable type bubble atomizing nozzle

A technology of atomizing nozzles and nozzles, which is applied in fuel injection devices, engine components, machines/engines, etc., can solve the problems of bubble atomizing nozzles that cannot control nozzle flow patterns, etc., to increase the frequency of bubble detachment and improve stability , the effect of reducing the size of the bubbles

Inactive Publication Date: 2015-03-11
BEIJING JIAOTONG UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: the existing bubble atomizing nozzle cannot control the bubble size inside the nozzle, the bubble flow pattern in the mixing chamber and the flow pattern transition near the nozzle hole

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
  • Flow pattern controllable type bubble atomizing nozzle
  • Flow pattern controllable type bubble atomizing nozzle
  • Flow pattern controllable type bubble atomizing nozzle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] A controllable flow-type bubble atomizing nozzle, such as figure 1 As shown, the bubble atomizing nozzle includes: liquid filling pipe 1, liquid filling pipe sleeve 2, sealing gasket 4, nozzle 6, hydraulic diameter regulator 7 at the place where bubbles are generated, first and second geometric regulators near the nozzle hole 8, 12, inflatable tube 13, bubble generator 14, first, second and third O-rings 16, 17 and 18.

[0027] The liquid-filling pipe 1 and the liquid-filling pipe sleeve 2 are threadedly connected, and the liquid-filling pipe sleeve 2 is threadedly connected with the nozzle and sealed by a sealing gasket 4 ; the bubble generator 14 is installed on the nozzle 6 .

[0028] Different direction liquid filling holes 3 are arranged on the end surface of the end of the liquid filling pipe 1 .

[0029] Described inflation pipe 13 and bubble generator ...

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 discloses a flow pattern controllable type bubble atomizing nozzle, which belongs to the diesel engine fuel oil injection technology, and aims to solve the problem that the conventional bubble atomizing nozzle can not control the size of a bubble inside the nozzle, and the change of flow patters both in a nozzle and near nozzle hole. According to the flow pattern controllable type bubble atomizing nozzle, a liquid filling pipe (1), a liquid filling pipe sleeve (2), and the nozzle (6) of the bubble atomizing nozzle are connected through threads; opposite direction liquid filling holes (3) are formed in the end face of the liquid filling pipe (1); hydraulic diameter adjuster (7) at a bubble generating part and the nozzle are in threaded connection; the hydraulic diameter adjuster is coaxially arranged with a gas filling pipe (13) and a bubble generator (14); a first nozzle hole near geometry adjuster (8) and a second nozzle hole near geometry adjuster (12) are symmetrically arranged on two sides of a nozzle axis; and the first nozzle hole near geometry adjuster, the second nozzle hole near geometry adjuster, and the nozzle are in threaded connection. The bubble atomizing nozzle provided by the invention can control geometry conditions inside the nozzle to realize the adjustment of generated sizes and the flow patterns of the bubble, so as to improve the atomizing quality of the fuel injection, improve the combustion efficiency of a diesel engine, and reduce exhaust gases.

Description

technical field [0001] The invention belongs to diesel engine fuel injection technology, in particular to a controllable flow-type bubble atomization nozzle. Background technique [0002] Fuel injection technology is a key technology to improve combustion efficiency and reduce emissions of diesel engines. The fuel is injected into the combustion chamber through the nozzle to form droplets. The smaller the size of the formed droplets, the shorter the time it takes to complete evaporation, and the more conducive to the spread and diffusion of flames, which can effectively improve the combustion efficiency of diesel engines. , reduce fuel consumption and emissions. [0003] The bubble atomizing nozzle is a new type of nozzle developed in the past ten years. The principle is that the compressed air and fuel are mixed in the nozzle mixing chamber to form a stable bubble-like two-phase flow; the bubble-like flow undergoes a flow state transition near the nozzle hole to form an 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
Patent Type & Authority Patents(China)
IPC IPC(8): F02M61/16
Inventor 孙春华宁智吕明阎凯
Owner BEIJING JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap