CN204921161U - Carbocycle device is scraped to engine overhead type - Google Patents
Carbocycle device is scraped to engine overhead type Download PDFInfo
- Publication number
- CN204921161U CN204921161U CN201520562654.3U CN201520562654U CN204921161U CN 204921161 U CN204921161 U CN 204921161U CN 201520562654 U CN201520562654 U CN 201520562654U CN 204921161 U CN204921161 U CN 204921161U
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- CN
- China
- Prior art keywords
- scraping
- carbocyclic ring
- carbocycle
- ring
- piston
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Abstract
The utility model belongs to the technical field of machinery, a carbocycle device is scraped to engine overhead type is proposed. A scrape carbocycle (3) and set up between cylinder jacket (12) and cylinder head (2) of scrape the carbocycle device is proposed, cylinder jacket (12), cylinder head (2), the outside of scraping carbocycle (3) are provided with cooling jacket (1), scrape carbocycle (3) and piston crown (5) clearance fit, cylinder jacket (12) and piston skirt clearance fit, the lower extreme of scraping carbocycle (3) internal face has and inwards stretches out, is used for striking off the scraping of piston crown position carbon deposit carbon sword (15), the middle part of scraping carbocycle (3) outer wall has annular groove I (17), and cooling chamber (9) on annular groove I (17) and the cooling jacket be linked together, constitutes to be used for scraping carbocycle refrigerated annular cooling chamber. The utility model discloses effectively reduce the heating load of scraping carbocycle and piston crown, improved the life who scrapes carbocycle and piston.
Description
Technical field
The utility model belongs to field of mechanical technique, is specifically related to a kind of motor overhead type and scrapes carbocyclic ring device.
Background technique
Motor in the course of the work, by the impact of fuel mass, easily carbon distribution is there is in piston crown outer round surface and piston ring groove, research shows, carbon distribution once piston crown thickeies close to cylinder liner internal wall, and the wear rate of cylinder liner will sharply rise, and the carbon distribution be simultaneously attached in piston ring groove easily causes piston ring scuffing, can piston ring sticking be caused time serious, and then cause the catastrophe failures such as scuffing of cylinder bore.At present in engine art, main employing installs the way of scraping carbocyclic ring additional on cylinder cover inner hole top, and scrape off piston crown carbon distribution, as patent " a kind of internal-combustion engine and piston thereof scrape carbocyclic ring " (CN203822461U) just have employed, cylinder liner is built-in scrapes carbocyclic ring structure.This structure can effectively remove piston crown carbon distribution, but also bring many unfavorable factors, be mainly manifested in: 1, scrape carbocyclic ring and carry the effect of scraping carbon, very easily wear and tear, surfaces nitrided method is preferably adopted to improve its wear resistance, but, for ensureing cylinder liner intensity, scraping carbocyclic ring and usually making thin-walled parts, and thin-walled parts can cause gross distortion after carrying out nitriding treatment, therefore, this structure to scrape carbocyclic ring wear resistance bad, working life is shorter.2, cylinder liner is built-in scrapes in carbocyclic ring structure, cylinder liner half the circumference of the sleeve where it joins the shoulder is closest to the firing chamber of motor, heat load is larger, but in order to ensure the intensity at supporting surface place on cylinder liner half the circumference of the sleeve where it joins the shoulder, cooling chamber cannot be designed on cylinder liner half the circumference of the sleeve where it joins the shoulder, therefore, in this structure, the cooling effect at cylinder liner half the circumference of the sleeve where it joins the shoulder place is poor, if motor works for a long time under high heat load operating mode, the thermal strain at cylinder liner half the circumference of the sleeve where it joins the shoulder place strengthens, and will increase the risk that piston crown and cylinder liner bond.3, after diesel engine operate longer, due to the impact of carbon distribution, scrape scraping in carbocyclic ring outer wall and cylinder liner and unavoidably have carbon distribution between carbocyclic ring groove and fill, scrape carbocyclic ring and clamping stagnation appears in cylinder liner, this scrapes carbocyclic ring to dismounting and brings very large difficulty.
Model utility content
For solving the problems of the technologies described above, the purpose of this utility model proposes a kind of motor overhead type to scrape carbocyclic ring device.
The utility model adopts following technological scheme for completing above-mentioned purpose:
A kind of motor overhead type scrapes carbocyclic ring device, described in scrape carbocyclic ring device carbocyclic ring of scraping be arranged between cylinder liner and cylinder head; Described cylinder liner, cylinder head, the outer installment of scraping carbocyclic ring have cooling jacket; The described diameter of bore scraping carbocyclic ring is less than the diameter of bore of cylinder liner; Describedly scrape carbocyclic ring and piston crown Spielpassung; Described cylinder liner and piston skirt Spielpassung; Described lower end of scraping carbocyclic ring internal face has inwardly stretches out, scrapes carbon sword for what strike off piston crown position carbon distribution; Described middle part of scraping carbocyclic ring upper-end surface has the annular boss protruded upward, and the groove kissing of described annular boss and cylinder head lower face is joined; Described scraping between carbocyclic ring and cylinder head is provided with airtight seal ring and overhead waterstop ring, for water shutoff and envelope gas; Described middle part of scraping carbocyclic ring outer wall has annular groove I, and described annular groove I is connected with the cooling chamber on cooling jacket, forms to scrape the annular cooling chamber that carbocyclic ring carries out cooling.
Described upper-end surface of scraping carbocyclic ring has the annular groove II of airtight seal ring and the annular groove III in order to install overhead waterstop ring are installed.
Described scraping between carbocyclic ring and water jacket is sealed by side waterstop ring.
A kind of motor overhead type that the utility model proposes scrapes carbocyclic ring device, scrapes carbocyclic ring and is arranged on cylinder liner top, and there is not combination force between cylinder liner, scrapes carbocyclic ring dismounting facility, does not need special tool; Scrape carbocyclic ring and constantly clean piston crown carbon distribution by the carbon sword of scraping below endoporus, very high requirement is proposed to the wear resistance of scraping carbocyclic ring, so, in the utility model, scrape carbocyclic ring and adopt overall nitriding treatment, greatly improve the wear resistance and working life of scraping carbocyclic ring; Scrape carbocyclic ring directly to contact with piston crown with firing chamber, heat load is larger, in the utility model, scrape on carbocyclic ring cylindrical and be provided with larger cooling chamber, cooling water constantly flows into cooling chamber, the heat scraped on carbocyclic ring is derived in time, effectively reduces the heat load of scraping carbocyclic ring and piston crown, improve the working life of scraping carbocyclic ring and piston; Scrape and carbocyclic ring is provided with airtight seal ring together, twice waterstop ring, effectively intercepted cylinder interior gas and outwards to have overflowed and extraneous cooling water enters in cylinder.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation scraping carbocyclic ring in the utility model.
In figure: 1, cooling jacket; 2, cylinder head; 3, carbocyclic ring is scraped; 4, piston; 5, piston crown; 6, airtight seal ring; 7, overhead waterstop ring; 8, backwater hole; 9, cooling chamber; 10, water inlet; 11, side waterstop ring; 12, cylinder liner, 13, endoporus; 14, annular groove II; 15, carbon sword is scraped; 16, annular groove IV; 17, annular groove I; 18, annular groove III; 19, annular boss.
Embodiment
With specific embodiment, the utility model is illustrated by reference to the accompanying drawings:
As shown in Figure 1, a kind of motor overhead type scrapes carbocyclic ring device, described in scrape carbocyclic ring device carbocyclic ring 3 of scraping be arranged between cylinder liner 12 and cylinder head 2; Described cylinder liner 12, cylinder head 2, the outer installment of scraping carbocyclic ring 3 have cooling jacket 1; The described diameter of bore scraping carbocyclic ring 3 is less than the diameter of bore of cylinder liner 12; Described carbocyclic ring 3 of scraping coordinates with piston 4 head clearance; Described cylinder liner 12 coordinates with piston 4 skirt clearance; The described air scraped in chamber that cylinder liner below carbocyclic ring 3 12 and piston 4 surround is compressed in the up process of piston 4, defines good seal band; Described lower end of scraping carbocyclic ring 3 internal face has inwardly stretches out, scrapes carbon sword 15 for what strike off piston crown position carbon distribution; Described middle part of scraping carbocyclic ring 3 upper-end surface has the annular boss 19 protruded upward, and described annular boss 19 is joined with the groove kissing of cylinder head 2 lower end surface; Described scraping between carbocyclic ring 3 and cylinder head 2 is provided with airtight seal ring 6 and overhead waterstop ring 7, for water shutoff and envelope gas; Described middle part of scraping carbocyclic ring 3 outer wall has annular groove I 17, and described annular groove I 17 is connected with the cooling chamber 9 on cooling jacket 1, is configured for the annular cooling chamber scraping carbocyclic ring 3 cooling.
Described upper-end surface of scraping carbocyclic ring 3 has the annular groove II 14 of airtight seal ring 6 and the annular groove III 18 in order to install overhead waterstop ring 7 are installed.
Described scraping between carbocyclic ring 3 and water jacket 1 is sealed by side waterstop ring 11.
What a kind of motor overhead type described in the utility model scraped carbocyclic ring device scrapes carbon principle: motor is when compression stage, piston 4 is up, when piston crown 5 cylindrical top edge is overlapping with the endoporus lower edge position scraping carbocyclic ring 3, scrape the carbon sword 15 of scraping that carbocyclic ring 3 epirelief goes out cylinder liner 12 endoporus to start to scrape carbon, along with piston 4 continues up, carbon distribution on piston crown 5 is constantly wiped off, the carbon distribution short stay scraped is scraping in carbocyclic ring 3 inwall and firing chamber, in the ensuing engine exhaust stage, the carbon distribution scraped in carbocyclic ring 3 inwall and firing chamber is blown out cylinder through exhaust valve by the exhaust airstream that in cylinder, intensity is higher.
A kind of motor overhead type described in the utility model scrapes the cooling principle of carbocyclic ring device: cooling water enters the cooling chamber 9 in water jacket from the water inlet 10 in water jacket 1, then the annular chamber 17 scraping carbocyclic ring 3 is flowed into, cool scraping carbocyclic ring 3, after completing cooling, cooling water flows out through water jacket 1 water hole last time 8, proceeds the cooling of other part.
Claims (2)
1. motor overhead type scrapes a carbocyclic ring device, it is characterized in that: described in scrape carbocyclic ring device carbocyclic ring (3) of scraping be arranged between cylinder liner (12) and cylinder head (2); Described cylinder liner (12), cylinder head (2), the outer installment of scraping carbocyclic ring (3) have cooling jacket (1); The described diameter of bore scraping carbocyclic ring (3) is less than the diameter of bore of cylinder liner (12); Described carbocyclic ring (3) of scraping coordinates with piston (4) head clearance; Described cylinder liner (12) coordinates with piston (4) skirt clearance; Described lower end of scraping carbocyclic ring (3) internal face has inwardly stretches out, scrapes carbon sword (15) for what strike off piston crown position carbon distribution; Described middle part of scraping carbocyclic ring (3) upper-end surface has the annular boss (19) protruded upward, and described annular boss (19) is joined with the groove kissing of cylinder head (2) lower end surface; Described scraping between carbocyclic ring (3) and cylinder head (2) is provided with airtight seal ring (6) and overhead waterstop ring (7); Described middle part of scraping carbocyclic ring (3) outer wall has annular groove I (17), and described annular groove I (17) is connected with the cooling chamber (9) on cooling jacket (1), is configured for scraping the annular cooling chamber that carbocyclic ring (3) cools.
2. a kind of motor overhead type as claimed in claim 1 scrapes carbocyclic ring device, it is characterized in that: described in scrape carbocyclic ring (3) upper-end surface on there is to install the annular groove II (14) of airtight seal ring and the annular groove III (18) in order to install overhead waterstop ring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201520562654.3U CN204921161U (en) | 2015-07-30 | 2015-07-30 | Carbocycle device is scraped to engine overhead type |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201520562654.3U CN204921161U (en) | 2015-07-30 | 2015-07-30 | Carbocycle device is scraped to engine overhead type |
Publications (1)
Publication Number | Publication Date |
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CN204921161U true CN204921161U (en) | 2015-12-30 |
Family
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Family Applications (1)
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CN201520562654.3U Expired - Fee Related CN204921161U (en) | 2015-07-30 | 2015-07-30 | Carbocycle device is scraped to engine overhead type |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111188692A (en) * | 2018-11-15 | 2020-05-22 | 日立汽车系统(苏州)有限公司 | Device for improving engine oil dilution |
CN111520711A (en) * | 2020-03-17 | 2020-08-11 | 西北工业大学 | Structure for improving carbon deposition of centrifugal nozzle |
CN112628011A (en) * | 2020-12-07 | 2021-04-09 | 潍柴动力股份有限公司 | Engine and power assembly |
AT524214B1 (en) * | 2020-10-08 | 2022-04-15 | Avl List Gmbh | Internal combustion engine with cylinder head gasket |
-
2015
- 2015-07-30 CN CN201520562654.3U patent/CN204921161U/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111188692A (en) * | 2018-11-15 | 2020-05-22 | 日立汽车系统(苏州)有限公司 | Device for improving engine oil dilution |
CN111520711A (en) * | 2020-03-17 | 2020-08-11 | 西北工业大学 | Structure for improving carbon deposition of centrifugal nozzle |
AT524214B1 (en) * | 2020-10-08 | 2022-04-15 | Avl List Gmbh | Internal combustion engine with cylinder head gasket |
AT524214A4 (en) * | 2020-10-08 | 2022-04-15 | Avl List Gmbh | Internal combustion engine with cylinder head gasket |
CN112628011A (en) * | 2020-12-07 | 2021-04-09 | 潍柴动力股份有限公司 | Engine and power assembly |
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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 | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20200730 |