CN201963414U - Lengthened piston reformed from original cylinder machine piston - Google Patents
Lengthened piston reformed from original cylinder machine piston Download PDFInfo
- Publication number
- CN201963414U CN201963414U CN2010206801532U CN201020680153U CN201963414U CN 201963414 U CN201963414 U CN 201963414U CN 2010206801532 U CN2010206801532 U CN 2010206801532U CN 201020680153 U CN201020680153 U CN 201020680153U CN 201963414 U CN201963414 U CN 201963414U
- Authority
- CN
- China
- Prior art keywords
- piston
- lengthened
- cylinder machine
- former cylinder
- transparent window
- 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 - Fee Related
Links
- 230000001131 transforming effect Effects 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 6
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000003287 optical effect Effects 0.000 abstract description 5
- 239000011148 porous material Substances 0.000 abstract 2
- 239000003595 mist Substances 0.000 abstract 1
- 238000005507 spraying Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to the field of optical engines, in particular to a lengthened piston reformed from an original cylinder machine piston, which has the advantages that the assembly is very convenient, and the development cost is greatly reduced. In order to achieve the purposes, the utility model has the technical scheme that the upper end of the original cylinder machine piston is connected with the lengthened piston, the outer wall of the lengthened piston is provided with piston rings, the upper end in the lengthened piston is provided with a transparent window, a pore cavity is arranged under the transparent window, and the side part of the pore cavity is provided with an orifice. Through the technical scheme, the piston is lengthened on the basis of retaining the bottom of the original cylinder machine piston without the need of developing a piston again, a complex process for developing the piston again is omitted, the assembly is simple and safe without causing damage on a cylinder sleeve, and the formation of sprayed mist and mixed gas in an engine, a combustion process and other conditions can be conveniently observed through the transparent window on the lengthened piston.
Description
Technical field
The utility model relates to the optical engine field, is specifically related to a kind of lengthened piston of being transformed by former cylinder machine piston.
Background technique
At present, optical engine is mainly used in the situations such as spraying, mixed gas formation and combustion process of research in-cylinder direct fuel-injection engine, and the research of domestic optical engine is with respect to external also relatively backward.Most of optical engines all are to transform on the multi-cylinder prototype, between cylinder body and cylinder cap, increase by an end vitreous quatz cylinder sleeve, the vitreous quatz cylinder sleeve causes that distance increases between the engine cylinder-body cylinder cap, by developing piston again, the piston lengthening is replenished, by offer the vestibule that transparent window is installed at piston head, and offer in the piston both sides radioscopic aperture is installed, by reflector image in the cylinder body is passed to the CCD camera, thereby situations such as cylinder internal spraying, mixed gas formation and combustion process are studied.Yet it is very loaded down with trivial details in when assembling to develop piston again, and piston is in assembly process, scratch transparent cylinder sleeve easily, and exploitation costly again simultaneously, process is also extremely complicated.
The model utility content
The purpose of this utility model provides a kind of lengthened piston of being transformed by former cylinder machine piston, assembles very convenient and greatly reduces development cost.
For achieving the above object, the utility model by the following technical solutions, a kind of lengthened piston of transforming by former cylinder machine piston, it is characterized in that: the upper end of former cylinder machine piston is connected with lengthened piston, the outer wall of lengthened piston is provided with piston ring, the upper end of lengthened piston inside is provided with transparent window, and the below of transparent window is provided with vestibule, and the sidepiece of vestibule has the aperture.
By above technological scheme, on the basis that keeps former cylinder machine piston base, piston is extended, need not to develop again piston, saved the complex process of the piston of exploitation again, assemble simple and safe, can not cause any damage, can conveniently observe situations such as the formation of motor internal spraying, mixed gas and combustion process by the transparent window on the lengthened piston to cylinder sleeve.
Description of drawings
Fig. 1 is the lengthened piston sectional view behind assembling transparent window and the piston ring;
The lengthened piston sectional view of unassembled transparent window of Fig. 2 and piston ring.
Embodiment
A kind of lengthened piston of transforming by former cylinder machine piston, the upper end of former cylinder machine piston 10 is connected with lengthened piston 20, lengthened piston 20 is installed again in the upper end of former cylinder machine piston 10 after by the hacksaw excision, the outer wall of lengthened piston 20 upper ends is provided with piston ring 30, piston ring 30 is arranged two groups at least, in order to prevent the scratch transparent cylinder sleeve, piston ring 30 adopts graphite to make, and can guarantee the sealing between piston and the transparent cylinder sleeve simultaneously.The upper end of lengthened piston 20 inside is provided with transparent window 40, and the below of transparent window 40 is provided with vestibule 21, and the sidepiece of vestibule 21 has aperture 22.In the vestibule 21 reflector is installed, 22 outsides, aperture are provided with the CCD camera, so just can observe situations such as the formation of in-engine spraying, mixed gas and combustion process by transparent window 40.
Described lengthened piston 20 is made of top section 23 and elongated portion 24, the upper end outer wall of the inwall of top section 23 and elongated portion 24 is provided with screw thread, the two constitutes screw-thread fit, and the zone formation between the upper end of the upper end of top section 23 and elongated portion 24 is held the fixedly annular groove 231 of transparent window 40.Top section 23 is positioned at the upper end of elongated portion 24, during assembling, earlier transparent window 40 is installed in the top of elongated portion 24, top section 23 is packed into again, compresses transparent window 40.
In order to guarantee that transparent window 40 can not skid off from the upper end of top section 23, the upper end of described top section 23 has aperture 232, and the diameter in aperture 232 so just is pressed on transparent window 40 in the annular groove 231 less than the diameter of transparent window 40.
Further, the upper and lower side of described transparent window 40 is lined with seal ring 50 respectively.Seal ring 50 has solved that sealing between transparent window 40 and the top section 23 is tight, the problem of gas leakage.
Further, the outer wall of described top section 23 is circumferentially with the annular groove 233 that is used to place piston ring 30.
The diameter of described elongated portion 24 is less than the diameter of top section 23, former cylinder machine piston 10, and elongated portion 24 is arc transition with the outer surface of top section 23, former cylinder machine piston 10 junctions.She Ji benefit is the inwall contact that elongated portion 24 just can be not used in transparent cylinder sleeve like this, reduced the friction of piston to the transparent cylinder sleeve inwall, elongated portion 24 is the scratch that arc transition also can effectively be avoided the transparent cylinder sleeve inwall with the junction of former cylinder machine piston 10, top section simultaneously.
The top of described former cylinder machine piston 10 is provided with tapped hole, is provided with the through hole that matches at the bottom of the chamber of the vestibule 21 of elongated portion 23, and the two is by bolt 60 connections and be lined with pad.So just former cylinder machine piston 10 is connected together with lengthened piston 20, assembling is finished the latter two and need not be taken apart again.
Further, the top sidewall of described former cylinder machine piston 10 has the groove 11 that oil ring is installed, the bottom land of groove 11 spill port 12 that extended internally.Oil ring can be hung the machine oil on the transparent cylinder sleeve inwall, and flows back to crankcase by spill port 12.
Claims (8)
1. lengthened piston of transforming by former cylinder machine piston, it is characterized in that: the upper end of former cylinder machine piston (10) is connected with lengthened piston (20), the outer wall of lengthened piston (20) upper end is provided with piston ring (30), the inner upper end of lengthened piston (20) is provided with transparent window (40), the below of transparent window (40) is provided with vestibule (21), and the sidepiece of vestibule (21) has aperture (22).
2. a kind of piston of transforming by former cylinder machine piston according to claim 1, it is characterized in that: described lengthened piston (20) is made of top section (23) and elongated portion (24), the upper end outer wall of the inwall of top section (23) and elongated portion (24) is provided with screw thread, the two constitutes screw-thread fit, and zone between the upper end of the upper end of top section (23) and elongated portion (24) constitutes and holds and the fixing annular groove (231) of transparent window (40).
3. a kind of lengthened piston of transforming by former cylinder machine piston according to claim 2, it is characterized in that: the upper end of described top section (23) has aperture (232), and the diameter of aperture (232) is less than the diameter of transparent window (40).
4. a kind of lengthened piston of transforming by former cylinder machine piston according to claim 1, it is characterized in that: the diameter of described elongated portion (24) is less than the diameter of top section (23), former cylinder machine piston (10), and elongated portion (24) is arc transition with the outer surface of top section (23), former cylinder machine piston (10) junction.
5. a kind of lengthened piston of being transformed by former cylinder machine piston according to claim 1, it is characterized in that: the outer wall of described top section (23) is circumferentially with the annular groove (233) that is used to place piston ring (30).
6. a kind of lengthened piston of being transformed by former cylinder machine piston according to claim 1 and 2, it is characterized in that: the upper and lower side of described transparent window (40) is lined with seal ring (50) respectively.
7. a kind of lengthened piston of transforming by former cylinder machine piston according to claim 1, it is characterized in that: the top of described former cylinder machine piston (10) is provided with tapped hole, be provided with the through hole that matches at the bottom of the chamber of the vestibule (21) of elongated portion (23), the two connects by bolt (60) and is lined with pad.
8. a kind of lengthened piston of being transformed by former cylinder machine piston according to claim 1, it is characterized in that: the sidewall of described former cylinder machine piston (10) has the groove (11) that oil ring is installed, the bottom land of groove (11) spill port (12) that extended internally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206801532U CN201963414U (en) | 2010-12-25 | 2010-12-25 | Lengthened piston reformed from original cylinder machine piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206801532U CN201963414U (en) | 2010-12-25 | 2010-12-25 | Lengthened piston reformed from original cylinder machine piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963414U true CN201963414U (en) | 2011-09-07 |
Family
ID=44525951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206801532U Expired - Fee Related CN201963414U (en) | 2010-12-25 | 2010-12-25 | Lengthened piston reformed from original cylinder machine piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963414U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807048A (en) * | 2014-01-24 | 2014-05-21 | 北京理工大学 | Method capable of expanding view field of optical engine |
| CN106089479A (en) * | 2016-06-12 | 2016-11-09 | 哈尔滨工程大学 | A kind of lengthened piston mechanism visualizing optical engine device |
| CN110805492A (en) * | 2019-11-05 | 2020-02-18 | 中北大学 | Visualization experiment system in opposed piston engine cylinder |
-
2010
- 2010-12-25 CN CN2010206801532U patent/CN201963414U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807048A (en) * | 2014-01-24 | 2014-05-21 | 北京理工大学 | Method capable of expanding view field of optical engine |
| CN103807048B (en) * | 2014-01-24 | 2017-07-11 | 北京理工大学 | A kind of method for expanding optical engine visual field |
| CN106089479A (en) * | 2016-06-12 | 2016-11-09 | 哈尔滨工程大学 | A kind of lengthened piston mechanism visualizing optical engine device |
| CN110805492A (en) * | 2019-11-05 | 2020-02-18 | 中北大学 | Visualization experiment system in opposed piston engine cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20141225 |
|
| EXPY | Termination of patent right or utility model |