CN207715192U - Turbocharger bearing body component - Google Patents
Turbocharger bearing body component Download PDFInfo
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- CN207715192U CN207715192U CN201721696345.0U CN201721696345U CN207715192U CN 207715192 U CN207715192 U CN 207715192U CN 201721696345 U CN201721696345 U CN 201721696345U CN 207715192 U CN207715192 U CN 207715192U
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Abstract
Turbocharger bearing body component, bearing body are equipped with fuel feed hole, leading oilhole, air end of booster Oil Guide inclined hole, turbine end Oil Guide inclined hole, air end of booster floating axle bearing bore, turbine end floating axle bearing bore, main oil pocket and oil outlet.In the setting of bearing body turbine end there are one independent cooling oil chamber, cooling oil chamber runs through the up-down structure of bearing body turbine end.It is arranged there are one nozzle opening in the turbine end of leading oilhole, nozzle opening is communicated with independent cooling oil chamber.It is set there are one lubricating oil relief hole close to the bottom of oil outlet in independent cooling oil chamber, relief hole is communicated with main oil pocket, convenient for the lubricating oil in cooling oil chamber is drained into main oil pocket in time.
Description
Technical field
The utility model is related to turbo-charger technical field, especially one kind in turbocharger using and can carry
The turbocharger bearing body component of high cooling effect.
Background technology
With internal combustion engine reinforcing degree continuous improvement and discharge standard it is increasingly strict, turbocharging technology become carries
One of the measure that high internal combustion engine is economical, dynamic property and discharge standard are the most key.As diesel oil and gas machine turbine increase
The development of pressure technology, the exhaust gas temperature born also are continuously improved, since sealing ring and bearing arrangement are turbocharger arrangements
In weak link, to the reliability of booster, even working efficiency has highly important influence.
Existing turbocharger bearing body is as shown in Fig. 5, and bearing body is equipped with fuel feed hole 1, leading oilhole 2, calms the anger
Hold Oil Guide inclined hole 3, turbine end Oil Guide inclined hole 4, air end of booster floating axle bearing bore 5, turbine end floating axle bearing bore 6, main oil pocket 7 and fuel-displaced
Hole 8, fuel feed hole 1 and leading oilhole 2 communicate, one end of air end of booster Oil Guide inclined hole 3 and one end of turbine end Oil Guide inclined hole 4 respectively with
Leading oilhole 2 communicates, and the other end of air end of booster Oil Guide inclined hole 3 and the other end of turbine end Oil Guide inclined hole 4 are floating with air end of booster respectively
Moving axis bearing bore 5 and turbine end floating axle bearing bore 6 communicate, air end of booster floating axle bearing bore 5 and turbine end floating axle bearing bore 6 respectively with master
Oil pocket 7 communicates, and oil outlet 8 is located at the bottom of main oil pocket 7, and is communicated with main oil pocket 7.
When engine is started to work, lubricating oil from oil inlet 1 enter dominate oilhole 2, by air end of booster Oil Guide inclined hole 3,
Turbine end Oil Guide inclined hole 4 cools down air end of booster floating bearing, turbine end floating bearing and whirlpool end sealing ring.
Since turbocharger generates high temperature at work, on bearing body at turbine end sealing ring shelves platform and on bearing body
The temperature of turbine end floating bearing bracket largely determines the service life of turbine end sealing ring and turbine end floating bearing.Whirlpool
Temperature is excessively high at wheel end sealing ring shelves platform can cause turbine end sealing ring to lose elasticity, so as to cause booster gas leakage, oil leak；Whirlpool
The temperature of wheel end floating bearing bracket is excessively high to cause lubricant effect decline and lubricating oil coking, and then leads to turbine end floating axle
It holds and wears excessive and failure.Existing turbocharger bearing body cannot solve the above problems well.
In order to effectively reduce the temperature of turbocharger turbine end sealing ring and turbine end floating bearing, people carry out
Extensive research.Chinese patent ZL201320805367.1 discloses a kind of " turbocharger water-cooled bearing body ", the bearing body
It is equipped with cooling water cavity, coordinates lubricating oil cooling, the structure that can effectively lower booster turbine by the cooling water of cooling water cavity
The temperature of sealing ring and turbine end floating bearing is held, but the structure needs to introduce extraneous water cooling medium, increases engine periphery
Installation, structure and assembly complexity, cost are higher, influence its extensive use in turbocharger.Chinese patent
ZL201420476584.5 is disclosed a kind of " turbocharger bearing body ", which is equipped with nozzle opening, is sprayed by nozzle opening
Cooling oil forces the bearing body of cooling turbine end, this structure can reduce the temperature of turbine end sealing ring to a certain degree, but this is tied
After structure cooling effect is limited, and the structure is there are engine cut-off, can not effectively mitigate heat flow backwards cause turbine end sealing ring and
There is " backheat phenomenon " in turbine end floating bearing, and the reliability of booster is affected.
Invention content
Being there is provided the purpose of the utility model is to overcome the above-mentioned insufficient of the prior art a kind of can improve cooling effect
Turbocharger bearing body component.
The technical solution of the utility model is：Turbocharger bearing body component, bearing body are equipped with fuel feed hole, leading oil
Hole, air end of booster Oil Guide inclined hole, turbine end Oil Guide inclined hole, air end of booster floating axle bearing bore, turbine end floating axle bearing bore, main oil pocket and go out
Oilhole, fuel feed hole and leading oilhole communicate, one end of air end of booster Oil Guide inclined hole and one end of turbine end Oil Guide inclined hole respectively with master
Oil guiding hole communicates, the other end of air end of booster Oil Guide inclined hole and the other end of turbine end Oil Guide inclined hole respectively with air end of booster floating bearing
Hole and turbine end floating axle bearing bore communicate, and air end of booster floating axle bearing bore and turbine end floating axle bearing bore are communicated with main oil pocket respectively,
Oil outlet is located at the bottom of main oil pocket, and is communicated with main oil pocket.
In the setting of bearing body turbine end, there are one independent cooling oil chambers, and cooling oil chamber is above and below bearing body turbine end
Structure.
It is arranged there are one nozzle opening in the turbine end of leading oilhole, nozzle opening is communicated with independent cooling oil chamber, nozzle opening
The ratio of the diameter D2 diameter D1, D1 and D2 that are less than leading oilhole 2 be 1：0.2~0.4.
It is set there are one lubricating oil relief hole close to the bottom of oil outlet in bearing body turbine cooling oil pocket, relief hole and main oil
Chamber communicates, and convenient for the lubricating oil in cooling oil chamber is drained into main oil pocket in time, the wherein diameter D3 of relief hole is equal to or more than spray
The ratio of the diameter D2, D2 and D3 of oilhole are 1：1~1.1.
When engine is started to work, lubricating oil enters from oil inlet dominates oilhole, the part into leading oilhole
Lubricating oil by air end of booster Oil Guide inclined hole, turbine end Oil Guide inclined hole directly to air end of booster floating bearing, turbine end floating bearing and
Whirlpool end sealing ring is cooled down.A part of lubricating oil enters cooling oil chamber by nozzle opening, since lubricating oil has at nozzle opening
Certain pressure, the flow of lubrication into cooling oil chamber are more than and drain into through relief hole the flow of lubrication of main oil pocket, cooling oil
Chamber is in the process of savings lubricating oil.
When engine work, lubricating oil can gradually fill up cooling oil chamber, the lubricating oil efficiency of cooling oil chamber storage
Bearing body turbine end sealing ring operating temperature is reduced, the turbine sealing ring enable steadily works.Enter at this time from nozzle opening
The flow of the flow of the lubricating oil of cooling oil chamber and the lubricating oil for draining into main oil pocket through relief hole reaches balance, ensures cooling oil chamber
In oil storage state of having one's bosom filled with, while avoiding influence of the high load capacity lubricating oil to turbine end sealing ring and turbine end floating bearing.
When engine cut-off, lubricating oil pump fuel cut-off, the lubricating oil part for being stored in cooling oil chamber at this time can be through spray
Oilhole blows back into leading oilhole, continues lubrication and cooling two floating axles by air end of booster Oil Guide inclined hole, turbine end Oil Guide inclined hole
It holds, reduces floating bearing and the dry grinding of rotor between centers and the thermic load phenomenon of rotor between centers；Simultaneously because nozzle opening stop it is past
Cooling oil chamber oil spout and lubricating oil have certain viscosity, the rate of relief hole oil extraction can be caused to substantially reduce, cooling oil chamber
In lubricating oil be in a process slowly successively decreased, the lubricating oil for remaining in cooling oil chamber still will continue to cooling bearing body turbine
End, reducing heat and flowing backwards causes turbine end sealing ring and turbine end floating bearing appearance temperature to rise phenomenon.
The further technical solution of the utility model is：It is machined with internal thread on relief hole, sets that there are one single on relief hole
To valve, check valve is used with relief hole and is threadedly coupled.
It is as follows using the turbocharger bearing body component cooling procedure of check valve：
When engine is started to work, lubricating oil enters from oil inlet dominates oilhole, the part into leading oilhole
Lubricating oil by air end of booster Oil Guide inclined hole, turbine end Oil Guide inclined hole directly to air end of booster floating bearing, turbine end floating bearing and
Whirlpool end sealing ring is cooled down.A part of lubricating oil enters cooling oil chamber by nozzle opening, and check valve is closed at this time.
When engine work, lubricating oil can gradually fill up cooling oil chamber, the lubricating oil efficiency of cooling oil chamber storage
Bearing body whirlpool end sealing ring operating temperature is reduced, ensures that whirlpool end sealing ring can steadily work.When cooling oil chamber is by lubricating oil
When filling and reaching certain pressure, check valve is opened in time, and the high temperature and pressure lubricating oil in cooling oil chamber is expelled to main oil pocket,
Meanwhile lubricating oil continues to enter cooling oil chamber from nozzle opening, avoids high load capacity lubricating oil to turbine end sealing ring and turbine end
Floating bearing has an impact.
When engine cut-off, lubricating oil pump fuel cut-off, check valve is closed in time, is stored in the lubrication of cooling oil chamber at this time
Oil also has pressure, and a part of lubricating oil can blow back into leading oilhole through nozzle opening, be led by air end of booster Oil Guide inclined hole, turbine end
Oily inclined hole continues to lubricate and cooling two floating bearings avoid floating bearing and rotor between centers until armature spindle stops operating
Dry grinding and armature spindle carbon distribution due to thermic load；The remaining lubricating oil of cooling oil chamber will continue to cooling bearing body turbine simultaneously
End avoids rising excessively high, guarantee turbine end sealing ring because hot refluence causes turbine end sealing ring and turbine end floating bearing temperature occur
It is in normal operating mode with turbine end floating bearing.
The utility model has following features compared with prior art：
There are one independent cold in the setting of bearing body turbine end for turbocharger bearing body component provided by the utility model
But oil pocket, lubricating oil cool down bearing body turbine end by cooling oil chamber, effectively reduce the temperature of turbine end.
The detailed construction of the utility model is further described below in conjunction with the drawings and specific embodiments.
Description of the drawings
Attached drawing 1 is turbocharger bearing body component structure diagram provided by the utility model；
Attached drawing 2 is the turbocharger bearing body component structure diagram provided by the utility model added with check valve；
Attached drawing 3 is the portions the I enlarged drawing in attached drawing 1；
Attached drawing 4 is the portions the II enlarged drawing in attached drawing 1；
Attached drawing 5 is existing turbocharger bearing body structural schematic diagram.
Specific implementation mode
Embodiment one, turbocharger bearing body component, bearing body are equipped with fuel feed hole 1, leading oilhole 2, air end of booster and lead
Oily inclined hole 3, turbine end Oil Guide inclined hole 4, air end of booster floating axle bearing bore 5, turbine end floating axle bearing bore 6, main oil pocket 7 and oil outlet 8,
Fuel feed hole 1 and leading oilhole 2 communicate, one end of air end of booster Oil Guide inclined hole 3 and one end of turbine end Oil Guide inclined hole 4 respectively with it is leading
Oilhole 2 communicates, the other end of air end of booster Oil Guide inclined hole 3 and the other end of turbine end Oil Guide inclined hole 4 respectively with air end of booster floating axle
Bearing bore 5 and turbine end floating axle bearing bore 6 communicate, air end of booster floating axle bearing bore 5 and turbine end floating axle bearing bore 6 respectively with main oil pocket
7 communicate, and oil outlet 8 is located at the bottom of main oil pocket 7, and is communicated with main oil pocket 7.
In the setting of bearing body turbine end, there are one independent cooling oil chambers 10, and cooling oil chamber 10 is through bearing body turbine end
Up-down structure.
It is arranged there are one nozzle opening 9 in the turbine end of leading oilhole 2, nozzle opening 9 is communicated with independent cooling oil chamber 10, is sprayed
The ratio that the diameter D2 of oilhole 9 is less than the diameter D1, D1 and D2 of leading oilhole 2 is 1：0.2.
It is set there are one relief hole 10-1, relief hole 10-1 close to the bottom of oil outlet 8 in bearing body turbine cooling oil pocket 10
It is communicated with cooling oil chamber 10, convenient for the lubricating oil taken turns in cooling oil chamber 10 is drained into main oil pocket 7 in time.
The ratio that the wherein diameter D3 of relief hole 10-1 is equal to or more than the diameter D2, D2 and D3 of nozzle opening 9 is 1：1.
Turbocharger bearing body component cooling procedure provided in this embodiment is as follows：
When engine is started to work, lubricating oil enters from oil inlet 1 dominates oilhole 2, into one in leading oilhole 2
Share in the benefit lubricating oil by air end of booster Oil Guide inclined hole 3, turbine end Oil Guide inclined hole 4 directly to air end of booster floating bearing, turbine end floating axle
It holds and whirlpool end sealing ring is cooled down.A part of lubricating oil enters cooling oil chamber 10 by nozzle opening 9, due to moistening at nozzle opening 9
Lubricating oil has certain pressure, and the flow of lubrication into cooling oil chamber 10 is more than and drains into through relief hole 10-1 the profit of main oil pocket 7
Oil flow, cooling oil chamber 10 are in the process of savings lubricating oil.
When engine work, lubricating oil can gradually fill up cooling oil chamber 10, the lubricating oil that cooling oil chamber 10 stores
Efficiency reduces bearing body turbine end sealing ring operating temperature, and the turbine sealing ring enable steadily works.At this time from nozzle opening 9
Flow into the flow and the lubricating oil for draining into main oil pocket 7 through relief hole 10-1 of the lubricating oil of cooling oil chamber 10 reaches balance,
Ensure that cooling oil chamber 10 is in oil storage state of having one's bosom filled with, while avoiding high load capacity lubricating oil floating to turbine end sealing ring and turbine end
The influence of dynamic bearing.
When engine cut-off, lubricating oil pump fuel cut-off, the lubricating oil part for being stored in cooling oil chamber 10 at this time can be through
Nozzle opening 9 blows back into leading oilhole 2, continues lubrication and cooling two by air end of booster Oil Guide inclined hole 3, turbine end Oil Guide inclined hole 4
Floating bearing reduces floating bearing and the dry grinding of rotor between centers and the thermic load phenomenon of rotor between centers；Simultaneously because nozzle opening 9
Stop that there is certain viscosity toward 10 oil spout of cooling oil chamber and lubricating oil, the rate of relief hole 10-1 oil extractions can be caused significantly
It reduces, the lubricating oil in cooling oil chamber 10 is in a process slowly successively decreased, and the lubricating oil for remaining in cooling oil chamber 10 still can
Continue cooling bearing body turbine end, reducing heat and flowing backwards causes turbine end sealing ring and turbine end floating bearing appearance temperature to rise phenomenon.
The difference of embodiment two, the present embodiment compared with embodiment one is that in the present embodiment, the ratio of D1 and D2 are 1：
The ratio of 0.3, D2 and D3 is 1：1.05.
The difference of embodiment three, the present embodiment compared with embodiment one is that in the present embodiment, the ratio of D1 and D2 are 1：
The ratio of 0.4, D2 and D3 is 1：1.1.
The difference of example IV, the present embodiment compared with embodiment one is in the present embodiment, to be processed on relief hole 10-1
There is internal thread, is set on relief hole there are one check valve 11, check valve 11 is used with relief hole 10-1 and is threadedly coupled.
It is as follows using the turbocharger bearing body component cooling procedure of check valve 11：
When engine is started to work, lubricating oil enters from oil inlet 1 dominates oilhole 2, into one in leading oilhole 2
Share in the benefit lubricating oil by air end of booster Oil Guide inclined hole 3, turbine end Oil Guide inclined hole 4 directly to air end of booster floating bearing, turbine end floating axle
It holds and whirlpool end sealing ring is cooled down.A part of lubricating oil enters cooling oil chamber 10 by nozzle opening 9, and check valve 11 is at this time
Closed state.
When engine work, lubricating oil can gradually fill up cooling oil chamber 10, the lubricating oil that cooling oil chamber 10 stores
Efficiency reduces bearing body whirlpool end sealing ring operating temperature, ensures that whirlpool end sealing ring can steadily work.When 10 quilt of cooling oil chamber
When lubricating oil fills and reaches certain pressure, check valve 11 is opened in time, and the high temperature and pressure lubricating oil in cooling oil chamber 10 is arranged
Go out to main oil pocket 7, meanwhile, lubricating oil continues to enter cooling oil chamber 10 from nozzle opening 9, avoids high load capacity lubricating oil close to turbine end
Seal ring and turbine end floating bearing have an impact.
When engine cut-off, lubricating oil pump fuel cut-off, check valve 11 is closed in time, is stored in cooling oil chamber 10 at this time
Lubricating oil also has pressure, and a part of lubricating oil can blow back into leading oilhole 2 through nozzle opening 9, by air end of booster Oil Guide inclined hole 3,
Turbine end Oil Guide inclined hole 4 continues to lubricate and cooling two floating bearings, until armature spindle stops operating, avoid floating bearing with
The dry grinding of rotor between centers and armature spindle carbon distribution due to thermic load；10 remaining lubricating oil of cooling oil chamber will continue to cooling shaft simultaneously
Body turbine end is held, avoids causing turbine end sealing ring and turbine end floating bearing appearance temperature liter excessively high because of heat refluence, ensures turbine
End sealing ring and turbine end floating bearing are in normal operating mode.
The difference of embodiment five, the present embodiment compared with example IV is that in the present embodiment, the ratio of D1 and D2 are 1：
0.3。
The difference of embodiment six, the present embodiment compared with example IV is that in the present embodiment, the ratio of D1 and D2 are 1：
0.4。
Claims (4)
1. turbocharger bearing body component, bearing body is equipped with fuel feed hole, leading oilhole, air end of booster Oil Guide inclined hole, turbine end
Oil Guide inclined hole, air end of booster floating axle bearing bore, turbine end floating axle bearing bore, main oil pocket and oil outlet, fuel feed hole and leading oilhole phase
Logical, one end of air end of booster Oil Guide inclined hole and one end of turbine end Oil Guide inclined hole are communicated with leading oilhole respectively, and air end of booster Oil Guide is oblique
The other end in hole and the other end of turbine end Oil Guide inclined hole respectively with air end of booster floating axle bearing bore and turbine end floating axle bearing bore phase
Logical, air end of booster floating axle bearing bore and turbine end floating axle bearing bore are communicated with main oil pocket respectively, and oil outlet is located at the bottom of main oil pocket,
And it is communicated with main oil pocket；It is characterized in that：
In the setting of bearing body turbine end there are one independent cooling oil chamber, cooling oil chamber runs through the knot up and down of bearing body turbine end
Structure；
It is arranged there are one nozzle opening in the turbine end of leading oilhole, nozzle opening is communicated with independent cooling oil chamber；
It is set there are one lubricating oil relief hole close to the bottom of oil outlet in independent cooling oil chamber, relief hole is communicated with main oil pocket.
2. turbocharger bearing body component as described in claim 1, it is characterized in that：The diameter D2 of nozzle opening is less than leading oil
Hole（2）Diameter D1, D1 and D2 ratio be 1：0.2~0.4.
3. turbocharger bearing body component as claimed in claim 1 or 2, it is characterized in that：The diameter D3 of relief hole be equal to or
Ratio more than the diameter D2, D2 and D3 of nozzle opening is 1：1~1.1.
4. turbocharger bearing body component as claimed in claim 1 or 2, it is characterized in that：Internal thread is machined on relief hole,
It is set on relief hole there are one check valve, check valve is used with relief hole and is threadedly coupled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721696345.0U CN207715192U (en) | 2017-12-08 | 2017-12-08 | Turbocharger bearing body component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721696345.0U CN207715192U (en) | 2017-12-08 | 2017-12-08 | Turbocharger bearing body component |
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| Publication Number | Publication Date |
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| CN207715192U true CN207715192U (en) | 2018-08-10 |
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ID=63059893
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721696345.0U Active CN207715192U (en) | 2017-12-08 | 2017-12-08 | Turbocharger bearing body component |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869364A (en) * | 2017-12-08 | 2018-04-03 | 湖南天雁机械有限责任公司 | Turbocharger bearing body component |
-
2017
- 2017-12-08 CN CN201721696345.0U patent/CN207715192U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869364A (en) * | 2017-12-08 | 2018-04-03 | 湖南天雁机械有限责任公司 | Turbocharger bearing body component |
| CN107869364B (en) * | 2017-12-08 | 2024-05-28 | 湖南天雁机械有限责任公司 | Turbocharger bearing body assembly |
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