CN107524480A - Turbocharger bearing body structure with overall ball bearing - Google Patents
Turbocharger bearing body structure with overall ball bearing Download PDFInfo
- Publication number
- CN107524480A CN107524480A CN201710609967.3A CN201710609967A CN107524480A CN 107524480 A CN107524480 A CN 107524480A CN 201710609967 A CN201710609967 A CN 201710609967A CN 107524480 A CN107524480 A CN 107524480A
- Authority
- CN
- China
- Prior art keywords
- hole
- bearing
- bearing body
- ball bearing
- alignment pin
- 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
- 239000000446 fuel Substances 0.000 claims abstract description 18
- 239000006071 cream Substances 0.000 claims abstract description 9
- 239000010426 asphalt Substances 0.000 claims description 12
- 238000005461 lubrication Methods 0.000 claims description 12
- 239000000919 ceramic Substances 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 27
- 239000010687 lubricating oil Substances 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/18—Lubricating arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/14—Lubrication of pumps; Safety measures therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/40—Application in turbochargers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
Turbocharger bearing body structure with overall ball bearing, including bearing body, overall ball bearing, alignment pin and oil inlet bolt；Overall ball bearing is arranged in the bearing hole of bearing body；Alignment pin upper end is arranged in the pin-and-hole A of bearing body, and lower end is inserted in the pin-and-hole B of overall ball bearing outer ring, and the outer ring of overall ball bearing is fixedly connected with bearing body；Oil inlet bolt lower end is threaded in the internal thread hole of bearing body, and upper end is located at outside bearing body.It is an advantage of the current invention that only with single overall ball bearing in the endoporus of bearing body, compared to the existing structure using two floating bearings, this case structure is simpler, and assembling is more convenient.An annular shoe cream room is formed between the lower surface of oil inlet bolt and the outer wall of alignment pin and the hole wall of shoulder hole, solves the problems, such as that lubricating oil lags fuel feeding during engine start, avoids overall ball bearing from dry friction occur in initial rotation.
Description
Technical field
The present invention relates to the bearing body structure of turbocharger, particularly a kind of turbocharger with overall ball bearing
Bearing body structure.
Background technology
In recent years, using the turbocharger of ball bearing because superior mechanical efficiency and transient response ability are in middle float
The application of amount automobile engine is just being increasingly subject to attention both domestic and external, but because the rotating speed of turbocharger is high, general work
Rotating speed reaches as high as twenties0000 rpms up to ten tens of thousands of rpms, and the operating mode of ball bearing is severe, will to reliability
Ask comparison high.Therefore, how to extend the service life of ball bearing, reduce vibration of the ball bearing under high-speed rotation and make an uproar
Sound, it is the emphasis of research in current industry.
The content of the invention
The purpose of the present invention is overcome the deficiencies in the prior art, and provides a kind of turbocharger with overall ball bearing
Bearing body structure, its is simple in construction, and lubrication is abundant, good reliability.
The technical scheme is that：Turbocharger bearing body structure with overall ball bearing, including it is bearing body, whole
Body ball bearing, alignment pin and oil inlet bolt；
The bearing hole of axial direction is provided with bearing body, bearing body outer wall is provided with the shoulder hole of radial direction, and shoulder hole is communicated to bearing hole,
Shoulder hole be internal thread hole close to one section of bearing body outer wall, and shoulder hole is pin-and-hole A in one section of close bearing body bearing hole；
Fuel feed hole is provided with bearing body, fuel feed hole one end open is fuel-displaced port, and another end opening is oil-feed port；
Overall ball bearing is arranged in the bearing hole of bearing body, and its outer ring is provided with pin-and-hole B and lubrication oil supply hole, lubrication oil supply hole
Connected with the fuel-displaced port of bearing body fuel feed hole；
Asphalt channel is provided with alignment pin, asphalt channel forms an oil inlet and an oil-out on the outer wall of alignment pin；
Alignment pin upper end is arranged in the pin-and-hole A of bearing body, and lower end is inserted in the pin-and-hole B of overall ball bearing outer ring, and by Integral ball axle
The outer ring held is fixedly connected with bearing body；
Oil inlet bolt lower end is threaded in the internal thread hole of bearing body, and upper end is located at outside bearing body, and its interior is provided with penetrates
The endoporus of its upper and lower end face, the lower end outlet of endoporus connect with the oil inlet of alignment pin asphalt channel；The lower surface of oil inlet bolt
Between the outer wall of alignment pin and the hole wall of shoulder hole formed an annular shoe cream room, annular shoe cream room simultaneously with alignment pin oil circuit
The oil-out of passage connects with the oil-feed port of bearing body fuel feed hole.
Further technical scheme is the present invention：Overall ball bearing includes outer ring, inner ring, Ceramic Balls rolling element, retainer；
Ceramic Balls rolling element has two row, and it is separately mounted in two row retainers, and is positioned between inner ring and outer ring, and position respectively
In the both ends of Integral ball bearing axial direction.
Further technical scheme is the present invention：The aperture at the most narrow place in lubrication oil supply hole of overall ball bearing is L, bearing
The aperture of the fuel feed hole of body is H, L：H=1：2-3.
Technical scheme of the invention further is：Seam is provided between the lower surface of oil inlet bolt and the upper surface of alignment pin
Gap.
The present invention has the following advantages that compared with prior art：
1st, only with single overall ball bearing in the endoporus of bearing body, compared to the existing structure using two floating bearings, this case
Structure is simpler, and assembling is more convenient.
2nd, an annular shoe cream room is formed between the lower surface of oil inlet bolt and the outer wall of alignment pin and the hole wall of shoulder hole,
Solve the problems, such as that lubricating oil lags fuel feeding during engine start, avoids overall ball bearing from dry friction occur in initial rotation.
3rd, the aperture at the most narrow place in lubrication oil supply hole is less than the aperture of fuel feed hole, and the structure can make the oil that lubrication oil supply hole sprays
Liquid is in vaporific, can more fully lubricate overall ball bearing and take away heat, reduce the abrasion of overall ball bearing, extend its use
Life-span.
4th, gap is provided between the lower surface of oil inlet bolt and the upper surface of alignment pin, gap communicates with annular shoe cream room,
Asphalt channel even if in alignment pin, which blocks, is also unlikely to complete oil-break.
Below in conjunction with figure, the invention will be further described with embodiment.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of middle (center) bearing body of the present invention；
Fig. 3 is Fig. 1 A portions enlarged drawing；
Fig. 4 is Fig. 1 B portions enlarged drawing.
Embodiment
Embodiment 1：
As Figure 1-4, the turbocharger bearing body structure with overall ball bearing, including bearing body 1, overall ball bearing,
Alignment pin 3 and oil inlet bolt 4.
The bearing hole 11 of axial direction is provided with bearing body 1, the outer wall of bearing body 1 is provided with the shoulder hole of radial direction, shoulder hole connection
To bearing hole 11, shoulder hole be internal thread hole 121 close to one section of bearing body 1 outer wall, and shoulder hole is in the close bearing of bearing body 1
One section of hole 11 is pin-and-hole A122；Fuel feed hole 13 is provided with bearing body 1, the one end open of fuel feed hole 13 is fuel-displaced port 131, another
End opening is oil-feed port 132.
Overall ball bearing is arranged in the bearing hole 11 of bearing body 1.Overall ball bearing includes outer ring 21, inner ring 22, ceramics
Ball rolling element 23 and retainer 24, its outer ring 21 are provided with pin-and-hole B and lubrication oil supply hole 212, lubrication oil supply hole 212 and bearing body
The fuel-displaced port 131 of 1 fuel feed hole 13 is connected, and Ceramic Balls rolling element 23 has two row, and two row Ceramic Balls rolling elements 23 are separately mounted to
In two row retainers 24, and it is positioned between inner ring 22 and outer ring 21, and is located at the two of Integral ball bearing axial direction respectively
End.
Asphalt channel 31 is provided with alignment pin 3, asphalt channel 31 forms an oil inlet 311 on the outer wall of alignment pin 3
With an oil-out 312；The upper end of alignment pin 3 is arranged in the pin-and-hole A122 of bearing body 1, and overall ball bearing outer ring 21 is inserted in lower end
Pin-and-hole B in, and the outer ring 21 of overall ball bearing is fixedly connected with bearing body 1.
The lower end of oil inlet bolt 4 is threaded in the internal thread hole 121 of bearing body 1, and upper end is located at outside bearing body 1, its
Interior to be provided with the endoporus 41 for penetrating its upper and lower end face, the lower end outlet of endoporus 41 and the oil inlet 311 of the asphalt channel 31 of alignment pin 3 connect
It is logical；An annular shoe cream room 5, annular are formed between the lower surface of oil inlet bolt 4 and the outer wall of alignment pin 3 and the hole wall of shoulder hole
Shoe cream room 5 connects with the oil-out 312 of the asphalt channel 31 of alignment pin 3 and the oil-feed port 132 of the fuel feed hole 13 of bearing body 1 simultaneously.
It is preferred that the aperture at the most narrow place in the lubrication oil supply hole 212 of overall ball bearing is L, the aperture of the fuel feed hole 13 of bearing body 1
For H, L：H=1：2.5.
It is preferred that gap is provided between the lower surface of oil inlet bolt 4 and the upper surface of alignment pin 3.
Claims (4)
1. the turbocharger bearing body structure with overall ball bearing, it is characterized in that：Including bearing body (1), overall ball bearing,
Alignment pin (3) and oil inlet bolt (4)；
The bearing hole (11) of axial direction is provided with bearing body (1), bearing body (1) outer wall is provided with the shoulder hole of radial direction, and shoulder hole connects
Pass to bearing hole (11), shoulder hole be internal thread hole (121) close to one section of bearing body (1) outer wall, and shoulder hole is in close axle
Hold body (1) bearing hole (11) one section is pin-and-hole A (122)；Fuel feed hole (13), fuel feed hole (13) one end are provided with bearing body (1)
It is oil-feed port (132) to be open as fuel-displaced port (131), another end opening；
Overall ball bearing is arranged in the bearing hole (11) of bearing body (1), and its outer ring (21) is provided with pin-and-hole B and lubrication oil supply hole
(212), lubrication oil supply hole (212) connect with the fuel-displaced port (131) of bearing body (1) fuel feed hole (13)；
Asphalt channel (31) is provided with alignment pin (3), asphalt channel (31) forms an oil inlet on the outer wall of alignment pin (3)
And an oil-out (312) (311)；Alignment pin (3) upper end is arranged in the pin-and-hole A (122) of bearing body (1), and lower end insertion is whole
In the pin-and-hole B of body ball bearing outer ring (21), and the outer ring (21) of overall ball bearing is fixedly connected with bearing body (1)；
Oil inlet bolt (4) lower end is threaded in the internal thread hole (121) of bearing body (1), and upper end is located at bearing body (1) outside
Portion, the endoporus (41) for penetrating its upper and lower end face, lower end outlet and alignment pin (3) asphalt channel (31) of endoporus (41) are provided with it
Oil inlet (311) connection；Formed between the lower surface of oil inlet bolt (4) and the outer wall of alignment pin (3) and the hole wall of shoulder hole
One annular shoe cream room (5), annular shoe cream room (5) and meanwhile with the oil-out (312) and bearing of alignment pin (3) asphalt channel (31)
Oil-feed port (132) connection of body (1) fuel feed hole (13).
2. the turbocharger bearing body structure of overall ball bearing is carried as claimed in claim 1, it is characterized in that：Integral ball axle
Contract and include outer ring (21), inner ring (22), Ceramic Balls rolling element (23) and retainer (24)；Ceramic Balls rolling element (23) has two row,
It is separately mounted in two row retainers (24), and is positioned between inner ring (22) and outer ring (21), and respectively positioned at overall
The both ends of ball bearing axial direction.
3. the turbocharger bearing body structure of overall ball bearing is carried as claimed in claim 2, it is characterized in that：Integral ball axle
The aperture at the most narrow place in lubrication oil supply hole (212) held is L, and the aperture of the fuel feed hole (13) of bearing body (1) is H, L：H=1：2-3.
4. the turbocharger bearing body structure with overall ball bearing as any one of claim 1-3, its feature
It is：Gap is provided between the lower surface of oil inlet bolt (4) and the upper surface of alignment pin (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710609967.3A CN107524480B (en) | 2017-07-25 | 2017-07-25 | Turbocharger bearing body structure with integral ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710609967.3A CN107524480B (en) | 2017-07-25 | 2017-07-25 | Turbocharger bearing body structure with integral ball bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107524480A true CN107524480A (en) | 2017-12-29 |
| CN107524480B CN107524480B (en) | 2024-04-19 |
Family
ID=60680033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710609967.3A Active CN107524480B (en) | 2017-07-25 | 2017-07-25 | Turbocharger bearing body structure with integral ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107524480B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005480A (en) * | 2019-04-02 | 2019-07-12 | 中国北方发动机研究所(天津) | A kind of TC bearings body structure |
| EP3511532A1 (en) * | 2018-01-15 | 2019-07-17 | Garrett Transportation I Inc. | Turbocharger with bearing sleeve and locating pin |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1730914A (en) * | 2005-09-01 | 2006-02-08 | 黄若 | Mixed ceramic ball bearing turbine supercharger |
| CN201818336U (en) * | 2010-10-12 | 2011-05-04 | 湖南天雁机械有限责任公司 | Turbocharger bearing body with oil chamber |
| CN102338158A (en) * | 2011-09-15 | 2012-02-01 | 西安交通大学 | Elastic ring and integral-type elastic ring damper utilizing same |
| JP2014125920A (en) * | 2012-12-26 | 2014-07-07 | Nsk Ltd | Turbocharger |
| CN207245772U (en) * | 2017-07-25 | 2018-04-17 | 湖南天雁机械有限责任公司 | Turbocharger bearing body structure with overall ball bearing |
-
2017
- 2017-07-25 CN CN201710609967.3A patent/CN107524480B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1730914A (en) * | 2005-09-01 | 2006-02-08 | 黄若 | Mixed ceramic ball bearing turbine supercharger |
| CN201818336U (en) * | 2010-10-12 | 2011-05-04 | 湖南天雁机械有限责任公司 | Turbocharger bearing body with oil chamber |
| CN102338158A (en) * | 2011-09-15 | 2012-02-01 | 西安交通大学 | Elastic ring and integral-type elastic ring damper utilizing same |
| JP2014125920A (en) * | 2012-12-26 | 2014-07-07 | Nsk Ltd | Turbocharger |
| CN207245772U (en) * | 2017-07-25 | 2018-04-17 | 湖南天雁机械有限责任公司 | Turbocharger bearing body structure with overall ball bearing |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3511532A1 (en) * | 2018-01-15 | 2019-07-17 | Garrett Transportation I Inc. | Turbocharger with bearing sleeve and locating pin |
| US11486268B2 (en) | 2018-01-15 | 2022-11-01 | Garrett Transportation I Inc. | Turbocharger assembly |
| CN110005480A (en) * | 2019-04-02 | 2019-07-12 | 中国北方发动机研究所(天津) | A kind of TC bearings body structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107524480B (en) | 2024-04-19 |
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| GR01 | Patent grant |