CN203685664U - Turbocharger compressor combination sealing structure - Google Patents
Turbocharger compressor combination sealing structure Download PDFInfo
- Publication number
- CN203685664U CN203685664U CN201420038841.7U CN201420038841U CN203685664U CN 203685664 U CN203685664 U CN 203685664U CN 201420038841 U CN201420038841 U CN 201420038841U CN 203685664 U CN203685664 U CN 203685664U
- Authority
- CN
- China
- Prior art keywords
- dividing plate
- shaft seal
- seal cover
- sealing sleeve
- shaft
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- 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 - Lifetime
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- 238000007789 sealing Methods 0.000 title claims abstract description 34
- 239000000314 lubricant Substances 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000005192 partition Methods 0.000 abstract 8
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000015927 pasta Nutrition 0.000 description 1
Images
Abstract
A turbocharger compressor combination sealing structure comprises a shaft sealing sleeve, a partition plate, a sealing ring and an O-shaped ring. The shaft sealing sleeve is arranged on a turbine shaft in a sleeved mode, one end of the shaft sealing sleeve abuts against the end face of a thrust collar, the other end of the shaft sealing sleeve abuts against the end face of a compressor vane wheel, and the shaft sealing sleeve and the compressor vane wheel are fixed on the turbine shaft in the axial direction through a rotor nut. The partition plate is arranged on the shaft sealing sleeve in a sleeved mode, is clearance fit with the shaft sealing sleeve and is fixedly connected on a bearing shell through a bolt. The O-shaped ring is arranged between the partition plate and the bearing shell and in a ring shape slotII in the partition plate. The sealing ring is arranged in an inner hole in the partition plate. An oil-throwing hole and a groove are formed in the shaft sealing sleeve, and the oil-throwing hole is communicated with the groove. A boss is arranged at the matching end of the partition plate and the shaft sealing sleeve, the boss is clearance fit with the groove, the fit clearance between the end face of the partition plate and the shaft sealing sleeve ranges from 0.2 mm to 0.4 mm, and the circumferential fit clearance between the shaft sealing sleeve and the partition plate ranges from 0.2 mm to 0.3 mm.
Description
Technical field
The utility model relates to turbosupercharger technical field of sealing technology, concrete, relates to a kind of small sized turbocharger gas compressor combined sealing structure.
Background technique
Strive to find along with the anxiety of oil supply in the enhancing of social environment consciousness and world wide forces people the method that reduces discharge energy saving, engine turbine supercharging technology has well solved this problem.In the actual using process of automobile, the gas compressor end seal failure of turbosupercharger causes that leakage of oil is the more common and urgent problem that needs solution.At present, the general structure that adopts dividing plate and oil baffle to add again single seal ring of small sized turbocharger gas compressor sealing, its basic principle is to block oil from source and leak into the path of gas compressor end, but actual effect is also bad, is the key point addressing the above problem so design a kind of efficient gas compressor sealing configuration.
Model utility content
In prior art, the technical problem that turbocharger air compressor sealing effect is poor, the utility model provides the turbocharger air compressor combined sealing structure of a kind of effectively oil sealing, envelope gas.
To achieve these goals, the utility model has adopted following technological scheme:
A kind of turbocharger air compressor combined sealing structure, comprise shaft seal cover, dividing plate, seal ring and O type circle, described shaft seal cover is sleeved on turbine shaft, its one end is connected on the end face of Thrust ring, the other end is connected on the end face of compression impellor, and shaft seal cover is axially fixed on turbine shaft by armature nut with compression impellor;
Described diaphragm housing ring is contained in shaft seal and puts, and with shaft seal cover Spielpassung, and is bolted to connection on cartridge housing;
Described O type circle is arranged between dividing plate and cartridge housing, in the circular groove II of dividing plate;
Described seal ring is arranged in the endoporus of dividing plate;
Described shaft seal puts to be provided with gets rid of oilhole and groove, gets rid of oilhole and is connected with groove;
The abutting end of described dividing plate and shaft seal cover is provided with boss, this boss and described groove Spielpassung, and the matching gap between the end face of dividing plate and shaft seal cover is 0.2～0.4 ㎜, shaft seal cover is 0.2～0.3 ㎜ with the circumferential matching gap of dividing plate.
Preferably, described in get rid of oilhole and be set to six, aperture is φ 1 ㎜.
Preferably, on described shaft seal cover end face, arrange and get rid of oily inclined-plane, the lubricant film between shaft seal cover and thrust-bearing is got rid of to the cavity of dividing plate.
Preferably, described dividing plate inner side is provided with guiding gutter, and guiding lubricant oil flows back in the oil back chamber flowing on cartridge housing.
Preferably, described seal ring is provided with two, and described shaft seal puts and is provided with two circular groove Is corresponding with described seal ring, and seal ring is supported in the endoporus of dividing plate by elasticity tension, and passes through circular groove I to its axial limiting.
Useful technique effect of the present utility model is:
Turbocharger air compressor combined sealing structure of the present utility model utilizes pump to inhale the principle of produce power loss in principle and flow of fluid, overlap coordinating of groove by dividing plate boss with shaft seal, and put to arrange in shaft seal and get rid of oilhole and get rid of oily inclined-plane, effectively reduce gas compressor end leakage of oil probability and quantity of gas leakage, avoid lubricant oil to scurry in cylinder and scurry in engine sump tank with a large amount of gas by suction tude, turbocharger air compressor combined sealing structure design of the present utility model is ingenious, and it is convenient to manufacture, install.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is diaphragm structure schematic diagram;
Fig. 3 is shaft seal nested structure schematic diagram.
Reference character
1. cartridge housing 2. dividing plate 3.O type circle 4. thrust-bearings
5. compression impellor 6. armature nut 7. turbine shaft 8. seal rings
9. shaft seal is overlapped 10. Thrust ring 21. circular groove II 22. boss
23. guiding gutter 24. cavitys 91. get rid of oilhole 92. grooves
93. get rid of oily inclined-plane 94. circular groove I
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further details.
As shown in Figure 1, turbocharger air compressor combined sealing structure of the present utility model, comprise shaft seal cover 9, dividing plate 2, seal ring 8 and O type circle 3, described shaft seal cover 9 is sleeved on turbine shaft 7, its one end is connected on the end face of Thrust ring 10, the other end is connected on the end face of compression impellor 5, and shaft seal cover 9 is axially fixed on turbine shaft 7 by armature nut 6 with compression impellor 5;
As shown in Figure 1, described dividing plate 2 is sleeved on shaft seal cover 9, overlaps 9 Spielpassung, and be bolted to connection on cartridge housing 1 with shaft seal;
As depicted in figs. 1 and 2, described O type circle 3 is arranged between dividing plate 2 and cartridge housing 1, in the circular groove II21 of dividing plate 2, realize dividing plate 2 periphery oil sealings envelope gas.
As shown in Figure 1, described seal ring 8 is arranged in the endoporus of dividing plate 2 by elasticity tension, realizes radial seal.
As shown in Figure 3, on described shaft seal cover 9, be provided with and get rid of oilhole 91 and groove 92, get rid of oilhole 91 and be connected with groove 92; In the present embodiment, described in get rid of oilhole 91 and be set to six, aperture is φ 1 ㎜.
As shown in Figure 2, described dividing plate 2 is provided with boss 22, as shown in figures 1 and 3, and this boss 22 and described groove 92 Spielpassung, matching gap between the end face 25 of dividing plate 2 and shaft seal cover 9 is 0.2～0.4 ㎜, and shaft seal cover 9 is 0.2～0.3 ㎜ with the circumferential matching gap of dividing plate 2.
As shown in Figure 3, on described shaft seal cover 9, be provided with and get rid of oily inclined-plane 93.
As shown in Figure 2, the inner side of described dividing plate 2 is provided with guiding gutter 23, flows in the oil back chamber on cartridge housing 1 for guiding lubricant oil to flow back to.
As shown in figures 1 and 3, described seal ring 8 is provided with two, on described shaft seal cover 9, is provided with two circular groove I94s corresponding with described seal ring 8, and seal ring 8 is supported in the endoporus of dividing plate 2 by elasticity tension, and passes through circular groove I94 to its axial limiting.
As shown in Figure 1, Figure 2 and Figure 3, when turbocharger operation, the lubricant film forming between thrust-bearing 4 and shaft seal cover 9 splashes under centrifugal action along the pasta 93 that gets rid of of shaft seal cover 9 in the cavity 24 of dividing plate 2, and most of lubricant oil can be back in the oil back chamber of cartridge housing 1 along the circular wall of dividing plate 2 and guiding gutter 23.
Being attached to a small amount of lubricant oil on shaft seal cover 9 end clearance between shaft seal cover 9 and dividing plate 2 enters shaft seal and overlaps 9 inside, shaft seal cover 9 is in the time of High Rotation Speed, get rid of the powerful pump suction that oilhole 91 produces, thereby the lubricant oil in end clearance between shaft seal cover 9 and dividing plate 2 is retracted in the cavity 24 of dividing plate 2, and then flows back in the oil back chamber of cartridge housing 1.
The interior a small amount of gas mixture of cartridge housing 1, after the C shape cooperating structure throttling that the groove 92 of shaft seal cover 9 and the boss 22 of dividing plate 2 form, no longer includes pressure.In the time of turbocharger operation, in cartridge housing 1, the pressure at seal ring 8 places is only a little more than barometric pressure.In the time that gas flows to low pressure area from zone of high pressure, seal ring 8 end faces are subject to pointing to the effect of whirlpool end axial force, abut against the end of circular groove I94, realize the second throttle to cartridge housing 1 interior a small amount of gas mixture.Double seal ring 8 the further second throttle effect that strengthened is set, make Leakage Gas can reduce 20～30%; Meanwhile, effectively reduce the leakage probability of lubricant oil from gap, greatly improved the sealing effect of turbocharger air compressor.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (5)
1. a turbocharger air compressor combined sealing structure, comprise shaft seal cover (9), dividing plate (2), seal ring (8) and O type circle (3), described shaft seal cover (9) is sleeved on turbine shaft (7), its one end is connected on the end face of Thrust ring (10), the other end is connected on the end face of compression impellor (5), and shaft seal cover (9) is axially fixed on turbine shaft (7) by armature nut (6) with compression impellor (5);
It is upper that described dividing plate (2) is sleeved on shaft seal cover (9), with shaft seal cover (9) Spielpassung, and is bolted to connection on cartridge housing (1);
Described O type circle (3) is arranged between dividing plate (2) and cartridge housing (1), the circular groove II(21 of dividing plate (2)) in;
Described seal ring (8) is arranged in the endoporus of dividing plate (2), it is characterized in that:
On described shaft seal cover (9), be provided with and get rid of oilhole (91) and groove (92), get rid of oilhole (91) and be connected with groove (92);
Described dividing plate (2) is provided with boss (22), this boss (22) and described groove (92) Spielpassung, matching gap between end face (25) and the shaft seal cover (9) of dividing plate (2) is 0.2～0.4 ㎜, and shaft seal cover (9) is 0.2～0.3 ㎜ with the circumferential matching gap of dividing plate (2).
2. turbocharger air compressor combined sealing structure according to claim 1, is characterized in that: described in get rid of oilhole (91) and be set to six, aperture is φ 1 ㎜.
3. turbocharger air compressor combined sealing structure according to claim 1, is characterized in that: on described shaft seal cover (9), be provided with and get rid of oily inclined-plane (93).
4. turbocharger air compressor combined sealing structure according to claim 1, is characterized in that: the inner side of described dividing plate (2) is provided with guiding gutter (23), flows in the oil back chamber on cartridge housing (1) for guiding lubricant oil to flow back to.
5. turbocharger air compressor combined sealing structure according to claim 1, it is characterized in that: described seal ring (8) is provided with two, on described shaft seal cover (9), be provided with two circular groove I(94s corresponding with described seal ring (8)), seal ring (8) is supported in the endoporus of dividing plate (2) by elasticity tension, and by circular groove I(94) to its axial limiting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420038841.7U CN203685664U (en) | 2014-01-22 | 2014-01-22 | Turbocharger compressor combination sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420038841.7U CN203685664U (en) | 2014-01-22 | 2014-01-22 | Turbocharger compressor combination sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685664U true CN203685664U (en) | 2014-07-02 |
Family
ID=51007572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420038841.7U Expired - Lifetime CN203685664U (en) | 2014-01-22 | 2014-01-22 | Turbocharger compressor combination sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203685664U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240308A (en) * | 2015-11-10 | 2016-01-13 | 湖南天雁机械有限责任公司 | Compressor end sealing sleeve of turbocharger |
| CN106194818A (en) * | 2016-08-31 | 2016-12-07 | 中车大连机车研究所有限公司 | Centrifugal-flow compressor novel pressure side oil-gas seal structure |
| CN107588039A (en) * | 2017-10-26 | 2018-01-16 | 凤城市时代龙增压器制造有限公司 | A kind of sealing structure for generator terminal of being calmed the anger for ball bearing turbine supercharger |
-
2014
- 2014-01-22 CN CN201420038841.7U patent/CN203685664U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240308A (en) * | 2015-11-10 | 2016-01-13 | 湖南天雁机械有限责任公司 | Compressor end sealing sleeve of turbocharger |
| CN106194818A (en) * | 2016-08-31 | 2016-12-07 | 中车大连机车研究所有限公司 | Centrifugal-flow compressor novel pressure side oil-gas seal structure |
| CN107588039A (en) * | 2017-10-26 | 2018-01-16 | 凤城市时代龙增压器制造有限公司 | A kind of sealing structure for generator terminal of being calmed the anger for ball bearing turbine supercharger |
| CN107588039B (en) * | 2017-10-26 | 2024-03-05 | 凤城市时代龙增压器制造有限公司 | Sealing structure for compressor end of ball bearing turbocharger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |
|
| CX01 | Expiry of patent term |