Lengthened piston for optical engine

A technology of optical engine and piston, applied in the direction of engine components, machines/engines, pistons, etc., can solve the problems of power reduction, low cylinder pressure, cumbersome disassembly, etc., and achieve the effect of preventing air leakage

Active Publication Date: 2011-11-16
CHERY AUTOMOBILE CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the working process of optical engines, especially combustible optical engines, the transparent window at the top of the extended piston needs to be disassembled frequently for cleaning or replacement, but the disassembly of the transparent window at the top of the existing extended piston is tedious, time-consuming, and difficult to install. Finally, it is difficult to ensure the seal between the piston and the transparent window, so that the pressure in the cylinder becomes lower and the power decreases

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
  • Lengthened piston for optical engine
  • Lengthened piston for optical engine
  • Lengthened piston for optical engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Such as figure 1 As shown, the cylinder liner 4 is provided with an extended piston 3, the top of the cylinder liner is the cylinder head 1, and the reflector 5 is fixed on the support at an angle of 45°, and placed in the square hole 15 on the side of the extended piston through the support. The other end of the support Fixed to the upper surface of the cylinder body, the CCD camera 6 can take pictures of the situation in the cylinder through the side square hole 15, the reflector 5, and the transparent window 2.

[0020] Such as figure 2 As shown, the extended piston 3 includes a piston top window portion 9 and a piston extension portion 10, both of which are made of aluminum alloy material, which reduces the overall piston mass. The piston top window part 9 and the piston extension part 10 are connected together by bolts 13. The top of the piston top window part 9 is provided with a round hole for installing a transparent window 2. The transparent window 2 is in 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 discloses a lengthened piston for an optical engine, which comprises a piston top window part and a piston lengthened part, wherein the piston top window part is connected with the piston lengthened part through bolts; a circular hole for installing a transparent window is arranged at the top of the piston top window part; a group of oil scraping rings and a group of oil control rings are arranged on the piston lengthened part; at least a group of bushing rings which can enable the lengthened piston to move along the axial direction of a cylinder sleeve are also arranged on the piston lengthened part; a piston pin hole which can enable the piston lengthened part to be assembled together with a connecting rod is arranged at the lower part of the piston lengthened part; and atleast a group of piston compression rings are arranged on the piston top window part. The lengthened piston for the optical engine, which has the special structure, solves the problems of untight sealing and air leakage between the transparent window and the circular hole at the piston top and solves the problem of disassembly of the transparent window by connecting the piston top window part with the piston lengthened part through the bolts, thus the transparent window at the piston top can be disassembled, replaced or cleaned easily.

Description

technical field [0001] The invention relates to a piston for an engine, in particular to an extended piston for an optical engine. Background technique [0002] At present, the optical engine is mainly used to study the fuel injection and spray stroke in the engine cylinder. The transparent window and mirror set on the top surface of the piston are used to take images, so as to analyze the flow field, spray, combustion and mixing in the cylinder. Gas formation, etc. are studied. However, during the working process of optical engines, especially combustible optical engines, the transparent window at the top of the extended piston needs to be disassembled frequently for cleaning or replacement, but the disassembly of the transparent window at the top of the existing extended piston is tedious, time-consuming, and difficult to install. Finally, it is difficult to ensure the sealing between the piston and the transparent window, so that the pressure in the cylinder becomes lowe...

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): F02F3/00
Inventor 霍英贤
Owner CHERY AUTOMOBILE CO LTD
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