CN203742821U - Lengthening piston of optical engine - Google Patents
Lengthening piston of optical engine Download PDFInfo
- Publication number
- CN203742821U CN203742821U CN201420074446.4U CN201420074446U CN203742821U CN 203742821 U CN203742821 U CN 203742821U CN 201420074446 U CN201420074446 U CN 201420074446U CN 203742821 U CN203742821 U CN 203742821U
- Authority
- CN
- China
- Prior art keywords
- piston
- optical engine
- upper body
- lengthening
- lengthened
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 20
- 210000001163 endosome Anatomy 0.000 claims description 18
- 210000002583 cell-derived microparticle Anatomy 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 7
- 239000004809 Teflon Substances 0.000 claims description 5
- 229920006362 Teflon® Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000010721 machine oil Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000001499 laser induced fluorescence spectroscopy Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
Landscapes
- Testing Of Engines (AREA)
Abstract
The utility model discloses a lengthening piston of an optical engine. The lengthening piston comprises a piston body which comprises a piston upper body and a piston lengthening part, and the piston upper body and the piston lengthening part are connected through a locking nut. A corresponding positioning hole is formed between the piston upper body and the piston lengthening part, and a positioning pin is arranged in the positioning hole. The piston is divided into an upper part and a lower part which are connected through a bolt, and therefore dismounting and mounting of the lengthening piston are more convenient. The upper part and the lower part of the piston are limited through the positioning pin and the positioning hole, the consistency in the dismounting process is guaranteed, a good positioning effect and a good mistake proofing effect are achieved, and dismounting and mounting are easier and more convenient.
Description
Technical field
The utility model relates to optical engine technical field, especially relates to a kind of optical engine lengthened piston.
Background technique
Optical engine is mainly used in studying motor in-cylinder combustion spraying situation at present, flame propagation situation, Soot Formation situation etc., adopt lengthened piston and gather image at transparent window and the reflector of piston-top surface setting by via Laser-induced Fluorescence Method and high speed camera, thereby to smooth in cylinder, the wet wall of spraying, in-cylinder combustion situation is studied, but, in the working procedure of optical engine, particularly after burning, need to clean transparent cylinder sleeve and transparent piston, and the sealed piston ring of replacing lengthened piston part, therefore will often dismantle piston.
But the dismounting of existing optical engine lengthened piston is loaded down with trivial details, lose time, recover installation steps also more loaded down with trivial details, and be difficult to ensure conformity when piston recovers assembling, thereby cause test conditions disunity, affect final test result.
Model utility content
For prior art deficiency, technical problem to be solved in the utility model is to provide a kind of optical engine lengthened piston, to reach object easy for removal and installation.
In order to solve the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of optical engine lengthened piston, comprise piston only, described piston only comprises piston upper body and piston lengthening part, between described piston upper body and piston lengthening part, be connected by locking nut, and be provided with corresponding positioning hole between piston upper body and piston lengthening part, in described positioning hole, be provided with locating stud.
Further, described piston lengthening part upper end is provided with the locating slot suitable with lower end, piston upper body.
In described piston lengthening part, be provided with the nut installation step suitable with locking nut.
Described piston upper body comprises piston ectosome and piston endosome, between described piston ectosome and piston endosome, matches by screw thread, and described piston ectosome top is provided with transparent window, between piston ectosome top and piston endosome top, is provided with clear glass.
Described piston lengthening part lower end outer wall is provided with scraper ring and oil control ring.
Described piston endosome outer wall is provided with closure gasket groove, is provided with the seal ring that adopts Teflon material in described closure gasket groove.
The utility model compared with prior art, has the following advantages:
1, piston is divided into upper and lower two-part, is connected by bolt, makes lengthened piston dismounting and easier for installation;
2, two-part up and down of piston are undertaken spacingly by locating stud and positioning hole, have ensured the conformity of disassembly process to play good location and mistake proofing effect;
3, piston lengthening part is provided with locating slot and nut installation step, effectively limiting piston and locking nut are installed, also be provided with scraper ring simultaneously, can prevent piston movement time, machine oil is splashed on reflecting mirror, impact is taken, and the oil control ring of setting can again strike off and participates in machine oil and make it get back to crankcase;
4, the seal ring on piston adopts Teflon material ring, and the position arranging can effectively prevent scratch transparent cylinder sleeve and play good seal action;
5, this lengthened piston for optical engine is introduced the guiding of piston wall in optical engine process of the test, can check more intuitively advantage and the deficiency of air-flow guiding and piston-top surface guiding spraying and flame propagation, open up another approach of optical engine test, thereby can adjust engine calibration data according to test result.
Brief description of the drawings
Below the mark in the each width accompanying drawing of this specification expressed content and figure is briefly described:
Fig. 1 is the utility model piston structure schematic diagram.
Fig. 2 is the utility model piston partial sectional view.
In figure: 1. piston ectosome, 2. piston endosome, 3. transparent window, 4. clear glass, 5. locating stud, 6. piston lengthening part, 7. oil control ring, 8. scraper ring, 9. connecting rod, 10. locking nut.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, embodiment of the present utility model is described in further detail.
As depicted in figs. 1 and 2, this optical engine lengthened piston, comprises piston upper body and piston lengthening part 6, the top that one end, piston upper body is piston, between the piston upper body the other end and piston lengthening part 6 one end, locking nut 10 is connected, and piston lengthening part 6 the other ends are connected with the connecting rod 9 of motor.
Piston upper body comprises piston endosome 2 and the piston ectosome 1 with wall guide portion and window part, the inwall of piston ectosome 1 is provided with internal thread, piston endosome 2 epimere outer walls are provided with the outside thread suitable with piston ectosome 1 internal thread, match together by internal and external screw thread between the two, easy for removal and installation.Wherein, piston upper body and piston lengthening part 6 all adopt aluminum alloy material to make, and have reduced the total quality of piston.
Piston ectosome 1 top is provided with transparent window 3, and be provided with the chamfering and the plane that fit with clear glass 4 in piston ectosome 1 inside, after piston ectosome 1 and clear glass 4 laminatings put in place, make its upper surface be close to clear glass 4 by revolving with piston endosome 2, ensure that clear glass 4 does not get loose and rocks.
Piston endosome 2 bottoms are provided with closure gasket groove, are provided with seal ring at closure gasket groove, and seal ring adopts the seal ring of Teflon material, and O type circle is located in seal ring, ensure that the sealing between piston and transparent cylinder sleeve is tight, prevent gas leakage, have ensured its sealability.Because Teflon piston ring mounting point is in the bottom of piston endosome part, guarantee piston ring part is only moved and can not entered the friction formation of transparent cylinder sleeve in Metallic cylinder, thereby has ensured turbidity test, clearness and the durability of transparent cylinder sleeve.
Between piston endosome 2 lower ends and piston lengthening part 6, be connected by locking nut 10, and be provided with corresponding positioning hole between piston endosome 2 and piston lengthening part 6, in positioning hole, be provided with locating stud 5.Piston lengthening part 6 upper ends are provided with the locating slot suitable with piston endosome lower end.And in piston lengthening part, be provided with the nut installation step suitable with locking nut.By following measures, can prevent that the situation of piston direction misloading from occurring, make assembling more convenient.
Piston ectosome 1 and piston endosome 2 and piston lengthening part 6 are coaxial, thereby have ensured that lengthened piston is along cylinder sleeve axis vertical motion, improve the stability of motor operation.
On piston lengthening part 6 lower end outer walls, be provided with scraper ring 8 and oil control ring 7.Can prevent piston movement by scraper ring time, machine oil is splashed on reflecting mirror, and impact is taken, and oil control ring can again strike off and participates in machine oil and make it get back to crankcase.
By reference to the accompanying drawings the utility model is exemplarily described above; obviously the utility model specific implementation is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that design of the present utility model and technological scheme carry out; or without improving, design of the present utility model and technological scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (6)
1. an optical engine lengthened piston, comprise piston only, it is characterized in that: described piston only comprises piston upper body and piston lengthening part (6), between described piston upper body and piston lengthening part (6), be connected by locking nut (10), and be provided with corresponding positioning hole between piston upper body and piston lengthening part (6), in described positioning hole, be provided with locating stud (5).
2. optical engine lengthened piston as claimed in claim 1, is characterized in that: described piston lengthening part (6) upper end is provided with the locating slot suitable with lower end, piston upper body.
3. optical engine lengthened piston as claimed in claim 1, is characterized in that: in described piston lengthening part (6), be provided with the nut installation step suitable with locking nut (10).
4. optical engine lengthened piston as claimed in claim 1, it is characterized in that: described piston upper body comprises piston ectosome (1) and piston endosome (2), between described piston ectosome (1) and piston endosome (2), match by screw thread, described piston ectosome (1) top is provided with transparent window (3), between piston ectosome (1) top and piston endosome (2) top, is provided with clear glass (4).
5. optical engine lengthened piston as claimed in claim 1, is characterized in that: described piston lengthening part (6) lower end outer wall is provided with scraper ring (8) and oil control ring (7).
6. optical engine lengthened piston as claimed in claim 4, is characterized in that: described piston endosome (2) outer wall is provided with closure gasket groove, is provided with the seal ring that adopts Teflon material in described closure gasket groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420074446.4U CN203742821U (en) | 2014-02-20 | 2014-02-20 | Lengthening piston of optical engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420074446.4U CN203742821U (en) | 2014-02-20 | 2014-02-20 | Lengthening piston of optical engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203742821U true CN203742821U (en) | 2014-07-30 |
Family
ID=51342631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420074446.4U Expired - Lifetime CN203742821U (en) | 2014-02-20 | 2014-02-20 | Lengthening piston of optical engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203742821U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023378A (en) * | 2017-06-01 | 2017-08-08 | 天津大学 | Burning chamber of diesel engine with visualization form |
| CN108982112A (en) * | 2018-07-31 | 2018-12-11 | 宁波市鄞州德来特技术有限公司 | A kind of optical engine |
-
2014
- 2014-02-20 CN CN201420074446.4U patent/CN203742821U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023378A (en) * | 2017-06-01 | 2017-08-08 | 天津大学 | Burning chamber of diesel engine with visualization form |
| CN108982112A (en) * | 2018-07-31 | 2018-12-11 | 宁波市鄞州德来特技术有限公司 | A kind of optical engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |