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

Combined cylinder sleeve of opposed piston two-stroke engine

An opposed-piston, combined technology, used in internal combustion piston engines, combustion engines, engine components, etc., to minimize fluctuations in boundary conditions, accurate and reliable comparisons, and improve accuracy and efficiency.

Active Publication Date: 2022-08-05
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Every structural optimization requires a redesign of the cylinder liner structure, and the existing technology is often difficult to flexibly continuously adjust the relevant structural parameters of the opposed-piston two-stroke engine based on existing components

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
  • Combined cylinder sleeve of opposed piston two-stroke engine
  • Combined cylinder sleeve of opposed piston two-stroke engine
  • Combined cylinder sleeve of opposed piston two-stroke engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] like image 3 As shown, a combined cylinder liner of an opposed-piston two-stroke engine disclosed in this embodiment includes a basic cylinder liner 1, a fully enclosed collar 2.1, a fully enclosed collar 2.2, a fully enclosed collar 2.3, and a fully enclosed collar 2.4 . Among them, the fully enclosed collar 2.1 and the fully enclosed collar 2.2 are installed on the air inlet of the basic cylinder liner, and the air flow enters the cylinder liner from the air inlet controlled by the fully enclosed collar 2.1 and the fully enclosed collar 2.2, and flows from the fully enclosed collar 2.2. The exhaust port composed of 2.3 and the fully closed collar 2.4 is discharged from the cylinder liner.

[0063] figure 1 It is the basic cylinder liner 1, and there are two circles of air ports on both sides, one side is the intake port, and the other side is the exhaust port. The height and width of the intake and exhaust ports of the basic cylinder liner 1 are the maximum allowab...

Embodiment 2

[0072] like Figure 8 As shown, a combined cylinder liner of an opposed-piston two-stroke engine disclosed in this embodiment includes a basic cylinder liner 1, a variable width ratio liner 3.1 mounted on the intake port of the basic cylinder liner, and an exhaust gas mounted on the basic cylinder liner. The mouth has a variable width ratio collar of 3.2.

[0073] Figure 7 In order to change the width ratio of the collar, it is directly installed on the basic cylinder liner. Figure 7 The port width of the variable width ratio collar 3 is equal to the port width of the basic cylinder liner 1 , and the port height of the variable width ratio collar 3 is smaller than that of the basic cylinder liner 1 .

[0074] Figure 9 For the exhaust port section at this time, in this installation position, the variable width ratio collar does not rotate in the circumferential direction, and the exhaust port width of the combined cylinder liner at this time is w01.

[0075] Figure 10 ...

Embodiment 3

[0083] like Figure 16 As shown, a combined cylinder liner of an opposed-piston two-stroke engine disclosed in this embodiment includes a basic cylinder liner 1, a fully closed collar 2.5, a fully closed collar 2.6 and a variable width ratio collar 3.3. Among them, the variable width ratio collar 3.3 is installed on the air inlet of the basic cylinder liner 1, and the fully enclosed collar 2.5 and the fully closed collar 2.6 are installed on the variable width ratio collar 3.3.

[0084] Figure 14 It is a variable width ratio collar of 3.3, and its port width and port height are consistent with the intake port of the basic cylinder liner.

[0085] Figure 15 It is shown that the variable width ratio collar 3.3 is installed on the intake port of the basic cylinder liner 1.

[0086] Figure 17 A relative installation position is described, the distance between the fully enclosed collar 2.5 and the fully enclosed collar 2.6 is L8, and the distance between the fully enclosed c...

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 combined cylinder sleeve of an opposed-piston two-stroke engine, and belongs to the technical field of opposed two-stroke engines. Modules with different functions are independent on the basis of modular design, and multi-parameter combined flexible adjustment is achieved through different adjustment methods. According to the invention, through axial translation of multiple components, continuous change of the intake and exhaust phases and the height of the air port is realized, continuous change of the height of the air port can be realized without changing the intake and exhaust phases, and the performance of the cylinder sleeve under different configurations can be rapidly obtained; through circumferential rotation, continuous change of the width of an air port and the strength of air inlet vortex is achieved, fluctuation minimization of boundary conditions in the testing process can be guaranteed through continuous adjustment of structural parameters, and comparison is more accurate and reliable. Through combined use of different structures, axial translation and circumferential rotation are achieved at the same time, continuous adjustment of intake and exhaust phases, the height of an air port, the width of the air port and the swirl ratio is achieved, combination, disassembly and assembly are convenient, implementation is convenient, and the optimization and adjustment efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of opposed two-stroke engines, and relates to a combined cylinder liner of an opposed-piston two-stroke engine. Background technique [0002] The cylinder liner is the core component of the engine. All processes such as intake, exhaust, and combustion are carried out in the cylinder liner. Therefore, in the optimization process of engine intake, exhaust and combustion, the cylinder liner structure needs to be improved. There are many parameters that affect the ventilation performance of the engine and are related to each other. The change of a certain parameter often causes the other parameters to be suboptimal, which requires us to continuously optimize and improve the cylinder liner structure. [0003] Usually, the engine structure optimization process shortens the research and development cycle and reduces the research and development cost by means of simulation analysis. However, only an accurate simula...

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 Applications(China)
IPC IPC(8): F02F1/00
CPCF02F1/004Y02T10/12
Inventor 左正兴梁永森王文晓王伟
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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