A two-stroke high power-to-weight ratio heavy oil piston engine intake buffer and its design method

An air intake buffer and engine technology, applied to internal combustion piston engines, combustion engines, machines/engines, etc., can solve the problems of cylinder gas pollution, fresh air intake, high scavenging coefficient, etc., and achieve the improvement of air exchange quality and scavenging coefficient The effect of large, power-to-weight ratio improvement

Active Publication Date: 2019-07-23
北京领动国创科技有限公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a scavenging air intake buffer for two-stroke high power-to-weight ratio heavy oil piston engines and its design method, which is used to solve the problem of cylinder gas backflow pollution of fresh intake air problems, while obtaining a higher scavenging coefficient under the same fresh intake air volume

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 two-stroke high power-to-weight ratio heavy oil piston engine intake buffer and its design method
  • A two-stroke high power-to-weight ratio heavy oil piston engine intake buffer and its design method
  • A two-stroke high power-to-weight ratio heavy oil piston engine intake buffer and its design method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0052] Such as figure 1 As shown, the intake buffer involved in the present invention is located after the outlet 1 of the scavenging pump.

[0053] Such as figure 2 , 3 As shown, the intake buffer of the present invention includes three gas chambers, namely the first chamber 4 , the second chamber 3 and the third chamber 2 . Wherein the third chamber 2 and the second chamber 3 are in direct contact with the outlet of the scavenging pump, and the third chamber 2 and the second chamber 3 are connected through an opening, and the second chamber 3 is connected to the first chamber 4 Also connected through a hole. One end of the first gas chamber 4 communicates with the second chamber 3 , and the other end serves as an outlet for crankcase gas.

[0054] Such as Figure 4 , 5 As shown, the crankcase outlet 5 is connected to the cylinder 7 th...

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 gas inlet buffer applied to a two-stroke high power-to-weight-ratio heavy oil piston engine and a design method thereof. The buffer is located between a scavenging pump outlet and an air cylinder gas inlet, the whole buffer is a group of cuboid-shaped accommodating cavities, and no other mechanical and moving parts exist in the buffer; and through structure design of the structural section of multiple groups of accommodating cavities, pollution to fresh air in an air inlet by backflow fuel gas in an air cylinder can be effectively controlled by the engine during scavenging, the backflow fuel gas is pushed into the air cylinder again, scavenging efficiency is higher, the scavenging coefficient is greater, and the total work of each time of circulation of the engine is larger.

Description

technical field [0001] The invention relates to the design field of an intake buffer structure of a piston engine, in particular to a design method for an intake buffer of a two-stroke high power-to-weight ratio heavy oil piston engine. Background technique [0002] With the development of general aviation, two-stroke heavy oil piston engines have gradually attracted people's attention. The performance of a two-stroke piston engine is greatly affected by the quality of air exchange. An ideal air exchange system is to obtain as large a scavenging coefficient as possible on the premise of a small excess scavenging coefficient and reduce the amount of scavenging. The residual exhaust gas in the cylinder afterwards. [0003] For aviation piston engines with high power-to-weight ratio requirements, the structural weight to achieve the target power of the engine should be as low as possible, which requires optimizing engine performance without greatly increasing the structural we...

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): F02B25/20
CPCF02B25/20Y02T10/12
Inventor 周煜丁水汀宋越徐征高新华
Owner 北京领动国创科技有限公司
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