CN201865752U - Oil-gas seal structure of turbine pressure booster - Google Patents
Oil-gas seal structure of turbine pressure booster Download PDFInfo
- Publication number
- CN201865752U CN201865752U CN201020622214XU CN201020622214U CN201865752U CN 201865752 U CN201865752 U CN 201865752U CN 201020622214X U CN201020622214X U CN 201020622214XU CN 201020622214 U CN201020622214 U CN 201020622214U CN 201865752 U CN201865752 U CN 201865752U
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- CN
- China
- Prior art keywords
- oil
- gas seal
- sealing
- seal structure
- turbosupercharger
- 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
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Abstract
The utility model provides an oil-gas seal structure of a turbine pressure booster, which structurally comprises an oil seal, a gas seal cover and an oil thrower wheel, wherein the gas seal cover is arranged on the oil seal, the oil thrower wheel is positioned at one side of the oil seal and the gas seal cover, and a piston ring is arranged between the oil seal and the gas seal cover and is arranged on the oil seal. Through adopting the oil-gas seal structure integrating the piston ring and the oil thrower wheel, the oil-gas seal structure of the turbine pressure booster provided by the utility model has the advantages that the reliability of the oil seal performance is improved, and the problems of oil leakage and accumulated carbon blockage of the matched pressure booster in idle operation and low-load operation of a diesel engine are basically solved.
Description
Technical field
The utility model relates to a kind of oil gas seal structure of turbosupercharger, relates in particular to the oil gas seal structure of a kind of diesel engine of locomotive with turbosupercharger.
Background technique
By gas compressor, form by turbo machine and intermediate three parts with turbosupercharger for diesel engine of locomotive.Because the blade of gas compressor and turbo machine is high speed rotating when work, from the machine oil of engine lubrication system through the machine oil mouth on the pressurized machine intermediate enter pressurized machine flow out along oil duct axle and bearing be lubricated after through the machine oil outlet return engine oil sump of return tube from the intermediate.At pressurized machine the oil gas seal structure is housed intermediate is separated with turbine end and gas compressor end, prevent turbine end pipeline and the gas compressor end pipeline of the oil leak at pressurized machine bearing place to pressurized machine.
Figure 1 shows that the oil gas seal structure schematic representation of existing turbosupercharger, in the prior art, most diesel engine of locomotive use the oil gas seal structure of ZN310 type pressurized machine with pressurized machine, referring to Fig. 1, existing oil gas seal structure comprises the oil sealing 1 that is installed in the gas compressor end, be installed in the sealing gland lid 2 on the oil sealing 1, and the disc 3 of oil sealing 1 gentle capping 2 inboards.Wherein there is big gap in the structure of oil sealing 1 for circumferentially opening three road coarse threads between sealing gland lid 2 and the disc 3.
The model utility content
Had a strong impact on the defectives such as normal operation of diesel engine at the leakage of oil of pressurized machine in the prior art and solid dead fault, in order to guarantee the safe operation of diesel engine of locomotive, the utility model provides a kind of oil gas seal structure of turbosupercharger.
The utility model provides a kind of oil gas seal structure of turbosupercharger, comprise oil sealing, be arranged on the sealing gland lid on the described oil sealing, and be positioned at the disc that described oil sealing and described sealing gland are covered a side, between described oil sealing and described sealing gland lid piston ring is housed, described piston ring is contained on the described oil sealing.
Lid of sealing gland described in the oil gas seal structure of turbosupercharger and described disc are formed with sealing surface as mentioned above, and the two has certain clearance.
An end of oil sealing is provided with stopper protrusion described in the oil gas seal structure of turbosupercharger as mentioned above.
The lid of sealing gland described in the oil gas seal structure of turbosupercharger is provided with chamfering with described stopper protrusion corresponding position as mentioned above.
The width of sealing surface is 0.5mm～2mm described in the oil gas seal structure of turbosupercharger as mentioned above, and length is 3mm～25mm.
The oil gas seal structure of the turbosupercharger that the utility model provides is by having adopted the comprehensive oil gas seal structure of piston ring and disc, improve the reliability of oil-sealing performance, solved the leakage of oil and the dead admittedly fault of carbon distribution of diesel oil for locomotive machine supporting pressurized machine when idle running and low-load substantially.
Description of drawings
Figure 1 shows that the oil gas seal structure schematic representation of existing turbosupercharger.
Figure 2 shows that the oil gas seal structure schematic representation that improves the back turbosupercharger.
Main reference character:
1: oil sealing; 2: the sealing gland lid;
3: disc; 4: piston ring;
5: bearing support; 6: the augmented thrust bearing;
7: radial bearing.
Embodiment
For the purpose, technological scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Figure 2 shows that the oil gas seal structure schematic representation that improves the back turbosupercharger.
As shown in Figure 2, the oil gas seal structure that improves the back turbosupercharger specifically comprises the oil sealing 1 that is installed in the gas compressor end, be installed in the sealing gland lid 2 on the oil sealing 1, be positioned at the disc 3 of oil sealing 1 gentle capping 2 inboards, between oil sealing 1 gentle capping 2, be provided with piston ring 4, piston ring 4 is contained on the oil sealing 1, the installed inside of disc 3 augmented thrust bearing 6 be contained within the bearing support 5, radial bearing 7 has been installed on the main shaft also has been contained within the bearing support 5.
The structure of present embodiment has formed multistage oil sealing effect, and particularly, disc 3 high speed rotating of gas compressor end borrow the oily major part that action of centrifugal force will flow out in the hole of compressorshaft bearing 5 to get rid of into oil back chamber inside; Further, sealing gland lid 2 and disc 3 are formed with sealing surface, and there is certain clearance in the two, and wherein the width of sealing surface is preferably 0.5mm～2mm, and length is preferably 3mm～25mm.If the remaining oil stain that splashes during the rotor rotation leaks on the sealing surface of sealing gland lid 2 and disc 3 formation, also can be dumped into oil back chamber inside, the sealing face better stops lubricant oil to enter sealing system; If there is a spot of machine oil not to be thrown out of, be set in the oil sealing structure that piston ring 4 on the oil sealing 1 has formed contact-type, can block the machine oil that can leak into sealing system; In addition, the pressure that during lubricating oil leakage piston ring is produced, further, one end of oil sealing 1 is provided with stopper protrusion, sealing gland lid 2 is provided with chamfering with the stopper protrusion corresponding position, by the installation of the more convenient piston ring of this structure, balance the pressure that produces during lubricating oil leakage, better stop leakage of oil.Even when the operating mode of diesel locomotive idle running and descending operation, when the pressure of oil gas seal structure inboard is a lot of greater than the pressure of gas compressor behind, also can play good anti-leakage of oil ability.
After adopting newly-designed oil gas seal structure, calculating, test and type approval test examination effect are fine.
The oil gas seal structure of the turbosupercharger that the utility model provides has adopted piston ring and the comprehensive depressed structure of oil sealing of disc, improve the reliability of oil-sealing performance, solved the leakage of oil and the dead admittedly fault of carbon distribution of diesel oil for locomotive machine supporting pressurized machine when idle running and low-load substantially.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technological scheme that aforementioned each embodiment put down in writing, and perhaps part technical characteristics wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment's technological scheme of the utility model.
Claims (5)
1. the oil gas seal structure of a turbosupercharger, comprise oil sealing, be arranged on the sealing gland lid on the described oil sealing, and be positioned at the disc that described oil sealing and described sealing gland are covered a side, it is characterized in that, between described oil sealing and described sealing gland lid piston ring is housed, described piston ring is contained on the described oil sealing.
2. the oil gas seal structure of turbosupercharger according to claim 1 is characterized in that, described sealing gland lid and described disc are formed with sealing surface, and the two has certain clearance.
3. the oil gas seal structure of turbosupercharger according to claim 1 and 2 is characterized in that, an end of described oil sealing is provided with stopper protrusion.
4. the oil gas seal structure of turbosupercharger according to claim 3 is characterized in that, described sealing gland lid is provided with chamfering with described stopper protrusion corresponding position.
5. the oil gas seal structure of turbosupercharger according to claim 2 is characterized in that, the width of described sealing surface is 0.5mm～2mm, and length is 3mm～25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020622214XU CN201865752U (en) | 2010-11-22 | 2010-11-22 | Oil-gas seal structure of turbine pressure booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020622214XU CN201865752U (en) | 2010-11-22 | 2010-11-22 | Oil-gas seal structure of turbine pressure booster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201865752U true CN201865752U (en) | 2011-06-15 |
Family
ID=44136909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020622214XU Expired - Fee Related CN201865752U (en) | 2010-11-22 | 2010-11-22 | Oil-gas seal structure of turbine pressure booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201865752U (en) |
-
2010
- 2010-11-22 CN CN201020622214XU patent/CN201865752U/en not_active Expired - Fee Related
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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: 20110615 Termination date: 20141122 |
|
| EXPY | Termination of patent right or utility model |