CN101709676A - Lengthened piston for optical engine - Google Patents
Lengthened piston for optical engine Download PDFInfo
- Publication number
- CN101709676A CN101709676A CN200910185211A CN200910185211A CN101709676A CN 101709676 A CN101709676 A CN 101709676A CN 200910185211 A CN200910185211 A CN 200910185211A CN 200910185211 A CN200910185211 A CN 200910185211A CN 101709676 A CN101709676 A CN 101709676A
- Authority
- CN
- China
- Prior art keywords
- piston
- lengthened
- optical engine
- transparent window
- group
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 18
- 230000006835 compression Effects 0.000 claims abstract description 16
- 238000007906 compression Methods 0.000 claims abstract description 16
- 238000004140 cleaning Methods 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 229910001026 inconel Inorganic materials 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000007790 scraping Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 4
- 239000010721 machine oil Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
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 at least 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
The present invention relates to a kind of motor piston, especially relate to a kind of lengthened piston for optical engine.
Background technique
At present, optical engine is mainly used in situations such as fuel injection in the research engine cylinder, spraying stroke, adopt lengthened piston and come photographic images, thereby the situations such as formation of cylinder flow field, spraying, burning and mixed gas are studied at the transparent window and the reflector of piston-top surface setting.Yet, in the working procedure of optical engine, particularly combustible optical engine, because the transparent window at lengthened piston top needs often dismounting to clean or change, but the dismounting of the top transparent window of existing lengthened piston is loaded down with trivial details, loses time, and is difficult to guarantee the sealing between piston and transparent window after installing, to such an extent as to cause the inner pressure of air cylinder step-down, power descends.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of lengthened piston for optical engine at problems of the prior art, its objective is to solve that sealing problem and piston head window portion tight, gas leakage are connected the dismounting problem that solves transparent window with the piston elongated portion by bolt between transparent window and piston head circular hole, make the transparent window of piston crown quick detachable, replacing or cleaning.
Technological scheme of the present invention is this kind lengthened piston for optical engine, comprise piston head window portion and piston elongated portion, described piston head window portion and piston elongated portion link together by bolt, the top of described piston head window portion is provided with the circular hole that transparent window is installed, described piston elongated portion is provided with one group of scraper ring and one group of oil control ring, also be provided with at least one group of grommet that can guarantee that lengthened piston moves along the axial direction of cylinder sleeve on the described piston elongated portion, the bottom of described piston elongated portion is provided with the piston pin hole that guarantees that itself and connection rod set are fitted together, and described piston head window portion is provided with at least one group compression piston ring.
The height of side square hole that is used to place reflector on the described piston elongated portion is greater than the stroke of piston, and the width of side square hole is more than or equal to the diameter of transparent window.
Described transparent window is "T"-shaped, and the upper and lower both sides of transparent window are lined with " C " shape ring that guarantees the inconel of sealability between transparent window and piston head circular hole respectively.
Described compression piston ring has two groups, and first group of compression piston ring determines each stroke wiping and the length of cleaning cylinder sleeve.
Described compression piston ring adopts graphite to make, and is oval under free state, is being subjected under the state of load to circular.
Described piston head window portion and piston elongated portion all adopt aluminum alloy material to make.
A kind of lengthened piston for optical engine with above-mentioned special construction has the following advantages:
1, upper and lower two-part of this kind lengthened piston for optical engine connect together by bolt, make the quick detachable replacing of transparent window or the cleaning at top; The top transparent window is clamped with two inconel C type rings by bolt, make between piston crown circular hole and transparent window to seal closely, prevent gas leakage.
2, be furnished with scraper ring on the piston elongated portion, can reduce the machine oil on the casing wall, machine oil is splashed on the reflector when preventing piston motion, and influence is taken; The oil control ring of downside can strike off remaining machine oil once more and make back crankcase simultaneously.
3, there are two groups of grommets to guarantee that lengthened piston is along cylinder sleeve axis vertical motion on the piston elongated portion.
4, compression piston ring adopts graphite annulus, prevents the scratch transparent cylinder sleeve.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is a working state schematic representation of the present invention.
Fig. 2 is a structural representation of the present invention.
In Fig. 1～2,1: cylinder cap; 2: transparent window; 3: lengthened piston; 4: cylinder sleeve; 5: reflector; The 6:CCD vidicon camera; 7: piston pin hole; 8: connecting rod; 9: the piston head window portion; 10: the piston elongated portion; 11: compression piston ring; 12: " C " shape ring; 13: bolt; 14: grommet; 15: the side square hole; 16: scraper ring; 17: oil control ring.
Embodiment
As shown in Figure 1, be provided with lengthened piston 3 in the cylinder sleeve 4, the cylinder sleeve top is a cylinder cap 1, reflector 5 is fixed on the support with 45, and be placed in the lengthened piston side square hole 15 by support, the other end of support is fixed to the cylinder body upper surface, and ccd video camera 6 can photograph the situation in the cylinder by side square hole 15, reflector 5, transparent window 2.
As shown in Figure 2, lengthened piston 3 comprises piston head window portion 9 and piston elongated portion 10, and piston head window portion 9 and piston elongated portion 10 all adopt aluminum alloy material to make, and have reduced the solid piston quality.Piston head window portion 9 and piston elongated portion 10 link together by bolt 13, the top of piston head window portion 9 is provided with the circular hole that transparent window 2 is installed, transparent window 2 is "T"-shaped, top transparent window 2 is clamped with two inconel " C " shape ring 12 by bolt, make 2 sealings of piston crown circular hole and transparent window closely, prevent gas leakage, guaranteed its sealability.
Piston elongated portion 10 is provided with one group of scraper ring 16 and one group of oil control ring 17, also be provided with two groups of grommets 14 that can guarantee that lengthened piston 3 moves along the axial direction of cylinder sleeve 4 on the piston elongated portion 10, the bottom of piston elongated portion 10 is provided with the piston pin hole 7 that guarantees that itself and connecting rod 8 fit together, piston head window portion 9 is provided with two groups of compression piston rings 11, first group of compression piston ring 11 determined each stroke wiping and the length of cleaning cylinder sleeve, and therefore first group of compression piston ring 11 is near from the top of piston as far as possible; Compression piston ring 11 adopts high temperature resistant, corrosion-resistant, rub resistance and has preferably the graphite of thermal conductivity and makes, and prevents scratch transparent cylinder sleeve 4; Compression piston ring 11 is oval under free state, is being subjected under the state of load to circular.
The height of side square hole 15 that is used to place reflector 5 on the piston elongated portion 10 is greater than the stroke of piston, avoid piston in moving up and down, to bump against reflector 5, the width of side square hole 15 is more than or equal to the diameter of transparent window 2, and the width of avoiding side square hole 15 is too little and shelter from reflector 5.
Claims (6)
1. lengthened piston for optical engine, comprise piston head window portion (9) and piston elongated portion (10), it is characterized in that: described piston head window portion (9) and piston elongated portion (10) link together by bolt (13), the top of described piston head window portion (9) is provided with the circular hole that transparent window (2) is installed, described piston elongated portion (10) is provided with one group of scraper ring (16) and one group of oil control ring (17), also be provided with at least one group of grommet (14) that can guarantee lengthened piston (3) on the described piston elongated portion (10) along the axial direction motion of cylinder sleeve (4), the bottom of described piston elongated portion (10) is provided with the piston pin hole (7) that guarantees that itself and connecting rod (8) fit together, and described piston head window portion (9) is provided with at least one group compression piston ring (11).
2. a kind of lengthened piston for optical engine according to claim 1, it is characterized in that: the height of side square hole (15) that is used to place reflector (5) on the described piston elongated portion (10) is greater than the stroke of piston, and the width of side square hole (15) is more than or equal to the diameter of transparent window (2).
3. a kind of lengthened piston for optical engine according to claim 2, it is characterized in that: described transparent window (2) is for "T"-shaped, and the upper and lower both sides of transparent window (2) are lined with " C " shape ring (12) that guarantees the inconel of sealability between transparent window (2) and piston head circular hole respectively.
4. a kind of lengthened piston for optical engine according to claim 3 is characterized in that: described compression piston ring (11) has two groups, and first group of compression piston ring (11) determines each stroke wiping and the length of cleaning cylinder sleeve.
5. a kind of lengthened piston for optical engine according to claim 4 is characterized in that: described compression piston ring (11) adopts graphite to make, and is oval under free state, is being subjected under the state of load to circular.
6. a kind of lengthened piston for optical engine according to claim 5 is characterized in that: described piston head window portion (9) and piston elongated portion (10) all adopt aluminum alloy material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101852116A CN101709676B (en) | 2009-11-02 | 2009-11-02 | Lengthened piston for optical engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101852116A CN101709676B (en) | 2009-11-02 | 2009-11-02 | Lengthened piston for optical engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101709676A true CN101709676A (en) | 2010-05-19 |
| CN101709676B CN101709676B (en) | 2011-11-16 |
Family
ID=42402479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101852116A Active CN101709676B (en) | 2009-11-02 | 2009-11-02 | Lengthened piston for optical engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101709676B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297036A (en) * | 2011-09-06 | 2011-12-28 | 天津大学 | Optical engine with variable view field |
| CN103470393A (en) * | 2013-10-09 | 2013-12-25 | 吉林大学 | Lengthened piston for visual gasoline direct-injection engine |
| CN104395649A (en) * | 2012-06-29 | 2015-03-04 | 易安迪机车公司 | Compression ring for 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 |
| CN106370385A (en) * | 2016-08-15 | 2017-02-01 | 天津大学 | Engine cylinder's inner near-wall flow field testing device |
| 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 |
| CN110131379A (en) * | 2019-06-05 | 2019-08-16 | 儒拉玛特自动化技术(苏州)有限公司 | A kind of rotary motion driving device |
| CN111855218A (en) * | 2020-08-18 | 2020-10-30 | 一汽解放汽车有限公司 | Internal combustion engine cylinder internal visual testing system |
-
2009
- 2009-11-02 CN CN2009101852116A patent/CN101709676B/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297036A (en) * | 2011-09-06 | 2011-12-28 | 天津大学 | Optical engine with variable view field |
| CN102297036B (en) * | 2011-09-06 | 2012-09-26 | 天津大学 | Optical engine with variable view field |
| CN104395649A (en) * | 2012-06-29 | 2015-03-04 | 易安迪机车公司 | Compression ring for engine |
| CN103470393A (en) * | 2013-10-09 | 2013-12-25 | 吉林大学 | Lengthened piston for visual gasoline direct-injection 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 |
| CN106370385A (en) * | 2016-08-15 | 2017-02-01 | 天津大学 | Engine cylinder's inner near-wall flow field testing device |
| CN106370385B (en) * | 2016-08-15 | 2018-11-02 | 天津大学 | The test device in nearly wall flow field in engine cylinder |
| 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 |
| CN110131379A (en) * | 2019-06-05 | 2019-08-16 | 儒拉玛特自动化技术(苏州)有限公司 | A kind of rotary motion driving device |
| CN111855218A (en) * | 2020-08-18 | 2020-10-30 | 一汽解放汽车有限公司 | Internal combustion engine cylinder internal visual testing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101709676B (en) | 2011-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101709676B (en) | Lengthened piston for optical engine | |
| CN101737191B (en) | Optical engine and lengthened piston thereof | |
| US8413632B2 (en) | Zero ridge cylinder bore | |
| CN103797237A (en) | Cylinder liner seal arrangement and method of providing the same | |
| CN102933827B (en) | Device in internal combustion engine | |
| JP2010242761A (en) | Reduction device for gas pressure applied to piston ring package of reciprocating engine | |
| CN201310304Y (en) | Oil-gas casing metal sealing device | |
| BR102015029807A2 (en) | valve and method | |
| CN201547242U (en) | Shock absorber sealing ring | |
| CN207795734U (en) | A kind of snap ring-type cylinder structure | |
| CN104694968A (en) | Crust breaking air cylinder special for aluminum electrolytic tank | |
| CN208330564U (en) | A kind of auto parts and components manufacture self-seal type insulation piston cap | |
| CN202202977U (en) | Piston ring of gasoline engine | |
| KR20200117283A (en) | Engine structure | |
| CN207795804U (en) | A kind of bolt assembly with safety relief function | |
| CN2797620Y (en) | Compensating type thermosensitive metal packer | |
| CN111749806A (en) | Marine diesel engine, cylinder liner and parts constituting the engine, and maintenance method for the engine | |
| CN210919260U (en) | Engine piston pin structure | |
| CN2575309Y (en) | Cylinder liner | |
| CN220218289U (en) | Auxiliary mounting device for piston rod of vertical piston compressor | |
| CN211144631U (en) | Head assembly structure of combustion chamber | |
| CN219654874U (en) | Ceramic cylinder sleeve for slurry pump | |
| CN2599259Y (en) | Energy saving wear-resisting integral combined piston ring oil ring | |
| CN204283650U (en) | A kind of piston structure for Turbocharged Gasoline Engine | |
| CN207033715U (en) | A kind of fluid power pipe sediment structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |