CN204646413U - Exhaust-gas turbocharger gas compressor end sealing configuration - Google Patents
Exhaust-gas turbocharger gas compressor end sealing configuration Download PDFInfo
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- CN204646413U CN204646413U CN201520319348.7U CN201520319348U CN204646413U CN 204646413 U CN204646413 U CN 204646413U CN 201520319348 U CN201520319348 U CN 201520319348U CN 204646413 U CN204646413 U CN 204646413U
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- shaft seal
- seal seat
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- sealing gland
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Abstract
The utility model relates to exhaust-gas turbocharger gas compressor end sealing configuration, bearing disk (3) is connected with shaft seal seat (4), shaft seal seat (4) is connected with shaft seal cover (5), sealing gland cover plate (10) is connected with shaft seal seat (4), oil baffle (12) is arranged between shaft seal seat (4) and sealing gland cover plate (10), seal ring (6) is arranged on shaft seal seat (4), the junction point of the gentle capping plate (10) of shaft seal cover (5), sealing gland cover plate (10) inner side is provided with groove (8), the first gap (14) entered for lubricant oil is installed with between bearing disk (3) and shaft seal seat (4), the region that bearing disk (3) surrounds with shaft seal seat (4) and oil baffle (12) is oil pocket (13), the region that shaft seal seat (4) surrounds with sealing gland cover plate (10) and oil baffle (12) is cavity (11).The utility model improves turbocharger air compressor end anti-negative pressure leakage of oil ability, reduces pressurized machine oil leakage fault rate.
Description
Technical field
The utility model belongs to field of mechanical technique, is specifically related to exhaust-gas turbocharger gas compressor end sealing configuration.
Background technique
Because exhaust-gas turbocharger has the advantage such as power, reduction fuel consume, reduction discharge improving diesel engine, apply quite extensive at present on a diesel engine.In recent years along with diesel engine using scope is more and more extensive, requirements at the higher level be it is also proposed to exhaust-gas turbocharger.Special under the particular job such as inland water transport, inshore fishing environment, diesel engine is longer for service time in low-speed big situation, requires that exhaust-gas turbocharger has good low speed anti-negative pressure leakage of oil ability.The impact of exhaust-gas turbocharger gas compressor end design of Sealing Structure on the reliability adapted under the various operating mode of diesel engine is increasing.Conventional exhaust gas compressor end sealing structure of turbosuperchargers many employings double seal ring or single seal ring small―gap suture coordinate and add oil baffle plate structure, test proves, diesel engine fix operating mode or working conditions change infrequently time, and in speed operation shorter situation working time, can also to meet the demands.But under particular job environment such as existing inland water transport, inshore fishing, limit by various factors, load is larger, running speed is lower, exhaust-gas turbocharger runs for a long time under speed operation, cause compressor impeller to take turns back of the body place negative pressure comparatively large, cause gas compressor end seal ring pressure at both sides uneven, this kind of sealing configuration causes that pressurized machine oil leakage fault is corresponding to be increased.
Summary of the invention
The purpose of this utility model is the deficiency in order to solve existing exhaust-gas turbocharger sealing technique, and provides a kind of exhaust-gas turbocharger gas compressor end sealing configuration with pumping function.
The technical solution adopted in the utility model: exhaust-gas turbocharger gas compressor end sealing configuration, it comprises bearing disk 3, shaft seal seat 4, shaft seal cover 5, seal ring 6, sealing gland cover plate 10, oil baffle 12, bearing disk 3 is connected with shaft seal seat 4, shaft seal seat 4 is connected with shaft seal cover 5, sealing gland cover plate 10 is connected with shaft seal seat 4, oil baffle 12 is arranged between shaft seal seat 4 and sealing gland cover plate 10, seal ring 6 is arranged on shaft seal seat 4, the junction point of the gentle capping plate 10 of shaft seal cover 5, the inner side of sealing gland cover plate 10 is provided with groove 8, the first gap 14 entered for lubricant oil is installed with between bearing disk 3 and shaft seal seat 4, the region that bearing disk 3 surrounds with shaft seal seat 4 and oil baffle 12 is oil pocket 13, the region that shaft seal seat 4 surrounds with sealing gland cover plate 10 and oil baffle 12 is cavity 11, shaft seal seat 4 is along the circumferential direction provided with and gets rid of oilhole 9, joint place between shaft seal seat 4 and sealing gland cover plate 10 is provided with the second gap 7, wherein, first gap 14 is communicated with oil pocket 13, oil pocket 13 with get rid of oilhole 9 and be communicated with, get rid of oilhole 9 to be communicated with the second gap 7, second gap 7 is communicated with cavity 11, cavity 11 is communicated with oil pocket 13.
Further, described shaft seal seat 4 is along the circumferential direction provided with 12 and gets rid of oilhole 9, and its diameter is 1.5mm.
The utility model compared with prior art its beneficial effect is: the utility model adopts and add pumping function structural design on conventional gas compressor end sealing configuration basis, lubricant oil throws away shaft seal seat by the negative pressure that the aperture on shaft seal seat produces under High Rotation Speed, lubricant oil obtains effective control by the flow of shaft seal seat, improve exhaust-gas turbocharger gas compressor end anti-negative pressure leakage of oil ability, reduce pressurized machine oil leakage fault rate, significantly promote the adaptive capacity of pressurized machine under the various operating mode of diesel engine; And the utility model structure is simple, in raising pressurized machine reliability, all bring income.
Accompanying drawing explanation
Fig. 1 be the utility model structure partly cut open structural representation;
Fig. 2 is shaft seal stand structure generalized section.
Embodiment
As shown in Figure 1, lubricant oil enters bearing disk 3 by bearing support main oil gallery 1 and bearing disk oil duct 2, for mechanism's fuel feeding, lubricant oil enters oil pocket 13 by the first gap 14 between shaft seal seat 4 and bearing disk 3, lubricant oil enters the cavity 11 between sealing gland cover plate 10 and oil baffle 12 under gravity, lubricant oil flows under the influence of gravity into groove 8, if lubricant oil oil mass is excessive, second gap 7 on side can be overflowed into, shaft seal seat 4 High Rotation Speed, the oilhole 9 that gets rid of on shaft seal seat 4 produces negative pressure in high-speed rotation, the lubricant oil entering the second gap 7 is thrown away.Lubricant oil obtains effective control by the flow of shaft seal seat, improves supercharger air compressor end anti-negative pressure leakage of oil ability, reduces pressurized machine oil leakage fault rate, significantly promotes the adaptive capacity of pressurized machine under the various operating mode of diesel engine.
As shown in Figure 2, when utilizing high velocity air to pass through to get rid of oilhole 9, the principle of negative pressure is produced in hole, when shaft seal seat 4 High Rotation Speed, the oilhole 9 that gets rid of on air-flow in cavity 11 and shaft seal seat 4 produces tangential velocity, produce a component velocity perpendicular to tangential velocity simultaneously, the pressure in aperture is made to become negative pressure, throw away from the aperture shaft seal seat to allow the lubricant oil entering the second gap 7, according to the negative pressure needs produced by shaft seal seat flow of lubrication and aperture, consider matching gap and wearing and tearing simultaneously, shaft seal seat is evenly arranged 12 apertures and communicates with the second gap 7, aperture ф 1.5, ensure to produce enough negative pressure by lubricant oil sucking-off.
This patent increase on conventional gas compressor end sealing configuration basis have pumping function shaft seal seat design, lubricant oil throws away shaft seal seat by the negative pressure that the aperture on shaft seal seat produces under High Rotation Speed, lubricant oil obtains effective control by the flow of shaft seal seat, improve exhaust-gas turbocharger gas compressor end anti-negative pressure leakage of oil ability, reduce pressurized machine oil leakage fault rate, significantly promote the adaptive capacity of pressurized machine under the various operating mode of diesel engine.
Claims (2)
1. exhaust-gas turbocharger gas compressor end sealing configuration, it comprises bearing disk (3), shaft seal seat (4), shaft seal cover (5), seal ring (6), sealing gland cover plate (10), oil baffle (12), it is characterized in that: bearing disk (3) is connected with shaft seal seat (4), shaft seal seat (4) is connected with shaft seal cover (5), sealing gland cover plate (10) is connected with shaft seal seat (4), oil baffle (12) is arranged between shaft seal seat (4) and sealing gland cover plate (10), seal ring (6) is arranged on shaft seal seat (4), the junction point of the gentle capping plate (10) of shaft seal cover (5), sealing gland cover plate (10) inner side is provided with groove (8), the first gap (14) entered for lubricant oil is installed with between bearing disk (3) and shaft seal seat (4), the region that bearing disk (3) surrounds with shaft seal seat (4) and oil baffle (12) is oil pocket (13), the region that shaft seal seat (4) surrounds with sealing gland cover plate (10) and oil baffle (12) is cavity (11), shaft seal seat (4) is along the circumferential direction provided with and gets rid of oilhole (9), joint place between shaft seal seat (4) and sealing gland cover plate (10) is provided with the second gap (7), wherein, first gap (14) is communicated with oil pocket (13), oil pocket (13) with get rid of oilhole (9) and be communicated with, get rid of oilhole (9) to be communicated with the second gap (7), second gap (7) is communicated with cavity (11), cavity (11) is communicated with oil pocket (13).
2. exhaust-gas turbocharger gas compressor end sealing configuration according to claim 1, is characterized in that: described shaft seal seat (4) is along the circumferential direction provided with 12 and gets rid of oilhole (9), and its diameter is 1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520319348.7U CN204646413U (en) | 2015-05-18 | 2015-05-18 | Exhaust-gas turbocharger gas compressor end sealing configuration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520319348.7U CN204646413U (en) | 2015-05-18 | 2015-05-18 | Exhaust-gas turbocharger gas compressor end sealing configuration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204646413U true CN204646413U (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520319348.7U Active CN204646413U (en) | 2015-05-18 | 2015-05-18 | Exhaust-gas turbocharger gas compressor end sealing configuration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10677097B2 (en) * | 2017-09-14 | 2020-06-09 | Man Energy Solutions Se | Turbocharger |
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2015
- 2015-05-18 CN CN201520319348.7U patent/CN204646413U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10677097B2 (en) * | 2017-09-14 | 2020-06-09 | Man Energy Solutions Se | Turbocharger |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180427 Address after: 300000 Yongfeng Road 12, Tianjin high-end equipment manufacturing industrial park, Beichen District, Tianjin. Patentee after: Tianjin North force booster Technology Co. Ltd. Address before: 037036 mailbox No. 22, Datong, Shanxi Patentee before: Datong North Tianli Turbocharging Technology Co.,Ltd. |