CN104747590A - Gasoline engine turbocharger novel thrust bearing - Google Patents
Gasoline engine turbocharger novel thrust bearing Download PDFInfo
- Publication number
- CN104747590A CN104747590A CN201310746039.3A CN201310746039A CN104747590A CN 104747590 A CN104747590 A CN 104747590A CN 201310746039 A CN201310746039 A CN 201310746039A CN 104747590 A CN104747590 A CN 104747590A
- Authority
- CN
- China
- Prior art keywords
- oil
- thrust bearing
- plane
- fan
- tank
- 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.)
- Pending
Links
Landscapes
- Supercharger (AREA)
Abstract
The invention belongs to the field of turbochargers, and particularly relates to a gasoline engine turbocharger novel thrust bearing. The gasoline engine turbocharger novel thrust bearing includes a circular thrust bearing body provided with an opening at one site, the center of the thrust bearing body is provided with a mounting hole, f the thrust bearing body is sequentially outward from the mounting hole provided with an oil wedge surface, an oil drain tank and an oil tank, the oil wedge surfaces is provided with four fan-shaped structures, each fan-shaped structure includes a fan-shaped inclined plane and a fan-shaped plane which are adjacent, the inclined plane of each fan-shaped structure is connected with the plane of last fan-shaped structure, each fan-shaped structure is provided with an oil storage tank, the oil storage tank is arranged at the adjoining position of the inclined plane and the plane, the oil drain tank surrounds the oil wedge surface, the oil tank is a semicircular structure, the oil tank surrounds the upper part of the oil drain tank, the oil drain tank is provided with three oil l passages, the three oil passages are respectively communicated with three oil storage tanks. The advantages are that the bearing area of an oil film of the oil wedge surface is larger, the oil film path is long, compared with a parallel oil wedge surface in the prior art, the bearing capacity is improved by more than 60%.
Description
Technical field
The invention belongs to field of turbochargers, specifically the novel thrust bearing of a kind of turbocharger for gasoline engine.
Background technique
In recent years, municipal pollution and noise nuisance are more and more serious, and various countries' environmental legislation controls more and more stricter, facilitates the development of the petrol engine such as minibus and passenger car turbocharging technology.The developing history of petrol engine air admission supercharging technology similar existing over half a century, but its development but experienced by a very long road.Main cause is exactly that diesel engine and petrol engine work characteristics separately exist very big difference, particularly in the formation and combustion manner of mixed gas, has great impact to boost performance, makes petrol engine air admission supercharging more a lot of than diesel engine supercharging difficulty technically.
For petrol engine, improve the temperature and pressure of mixed gas compression and combustion gas in cylinder after supercharging, add the heat load of firing chamber Heating Components, be easy to produce pinking, thus the mechanical property of motor, greasy property etc. are all affected.Petrol engine delivery temperature is higher than diesel engine in addition, and the rotating ratio diesel engine of petrol engine is high, and air mass flow change is larger.These are all had higher requirement to the material of turbocharger for gasoline engine and parts thereof, design, manufacture and processing.
In vehicle turbocharger design, the design of thrust bearing is extremely important, and it not only directly affects reliability and the working life of supercharger structure, and thrust bearing accounts for the major part of bearing power loss, also can affect the efficiency of turbosupercharger.According to statistics in all faults of pressurized machine, the fault caused due to bearing (thrust bearing and floating bearing) accounts for about 40%.And in bearing fault, the rate of fault of thrust bearing is again higher than floating bearing.Thrust bearing is once damage, and directly cause impeller and housing grazing, rotor is stuck, and pressurized machine quits work.Therefore, in order to improve the reliability of turbocharger for gasoline engine of new generation, the novel thrust bearing of Study and Development is imperative.
Summary of the invention
The present invention is directed to Problems existing in above-mentioned technology, propose the novel thrust bearing of a kind of turbocharger for gasoline engine.
The invention provides following technological scheme:
The novel thrust bearing of turbocharger for gasoline engine, it comprises the thrust bearing body that a circular place is provided with opening, thrust bearing body central is provided with mounting hole, outwards oil film wedge face is provided with successively by mounting hole, drain pan and oil groove, described oil film wedge face is provided with four sector structures, each sector structure comprises adjacent fan-shaped inclined-plane and fan-shaped plane, the inclined-plane of each sector structure and the flat face of a upper sector structure, each sector structure is provided with an oil storage tank, oil storage tank is located at inclined-plane and planar abutment place, drain pan is looped around oil film wedge face surrounding, oil groove is semicircular structure, oil groove is looped around upper half part of drain pan, oil groove is provided with three oil ducts, and three oil ducts are communicated with three oil storage tanks respectively.
Described oil duct and oil storage tank are just to being connected.
Advantage of the present invention is that oil film wedge face oil film loaded area is large, oil film path length, than the parallel oil film wedge face bearing power increase profit more than 60% of original technology.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is A-A partial sectional view in Fig. 1;
The B-B of Fig. 3 Fig. 1 is to sectional view.
Embodiment
As Fig. 1, Fig. 2, shown in Fig. 3, the novel thrust bearing of turbocharger for gasoline engine, C is to the sense of rotation of the axle matched for the present invention, it comprises the thrust bearing body 1 that a circular place is provided with opening, thrust bearing body 1 center is provided with mounting hole, outwards oil film wedge face 2 is provided with successively by mounting hole, drain pan 3 and oil groove 4, described oil film wedge face 2 is provided with four sector structures, each sector structure comprises adjacent fan-shaped inclined-plane 2a and fan-shaped plane 2b, the inclined-plane of each sector structure and the flat face of a upper sector structure, each sector structure is provided with an oil storage tank 5, oil storage tank 5 is located on the connecting line at inclined-plane and planar abutment place, drain pan 3 is looped around oil film wedge face 2 surrounding, oil groove 4 is semicircular structure, oil groove 4 is looped around upper half part of drain pan 3, oil groove 4 is provided with three oil ducts, 6, three oil ducts 6 and is just docked and connected with three oil storage tanks 5 respectively.
In sector structure, inclined-plane 2a is settled down to the bottom b near oil storage tank 5 one end from the high-end a in one end away from oil storage tank 5, therefore forms inclined-plane 2a
Thrust bearing body 1 body is provided with screw hole and surrounding is also provided with pin hole 7.
This thrust bearing arranges the gas compressor end be arranged near pressurized machine, wherein, has the side of oil groove to install towards intermediate, and the axial force pointing to gas compressor end is mainly born in the oil film wedge face that this face distributes, i.e. forward thrust.The axial force pointing to turbine end, i.e. deboost are mainly born in the oil film wedge face of opposite side.Be separately installed with shaft seal and shaft seal pad in the both sides of thrust bearing, they can be delivered to epitrochanterian axial force on thrust plate by oil film wedge face.
The present invention adopts the structural design of 360 degree, compare original 270 degree, intensity and reliability are greatly improved the structural design owing to being 360 degree, and the shaft seal matched needs to make twinset design into and matches with it, and material adopts high strength anti-abrasion manganese brass, material composition is Cu(57 ~ 59%), Mn(1.5 ~ 3.0%), Si(0.3 ~ 1.3%), Pb(0.2 ~ 1.0%), Al(1.3 ~ 2.3%), Zn surplus.Adopt CNC numerical-control direct to take over the baton material machine shaping, the hardness of finished product to about HBS180, can have higher intensity and wear resistance; The structural design of oil film wedge face structure have employed the structure of 4 tiltedly-planes.Inclined-plane and plane all become fan-shaped.This inclined-plane has spatial structure, all has varied in thickness at circumference and diametric(al).Circumferencial direction, along the sense of rotation of axle, inclined-plane raises gradually, highest point and plane contour.This structure can improve the resistance of machine oil when circumferential movement, thus improves the pressure of oil film, promotes the bearing capacity of bearing; Diametric(al), inclined-plane raises from inside to outside gradually, effectively solves the oil film wedge face outer edge vent flow increase that high speed thrust bearing causes due to centrifugal force, causes the problem that bearing capacity reduces.And this oil film wedge face oil film loaded area is large, oil film path length, than the parallel oil film wedge face bearing power increase profit more than 60% of original technology.
This bearing adopts three oil ducts, four oil storage tanks are oil film wedge face fuel feeding, ensures that fuel feeding is sufficient.Article three, oil duct distributing position is as shown below, leads to center hole by oil groove.Article four, oil storage tank is distributed in the jointing place of inclined-plane, oil film wedge face and plane, and wherein three lay respectively at the dead ahead of three oil ducts.Oil-feed tank is an arc groove being distributed in outside drain pan, and its central angle is about 210 °.
The lubricant oil of thrust bearing passes through successively: oil inlet hole → main oil gallery → oil groove → oil duct → endoporus → oil storage tank → oil film wedge face → drain pan.Shaft seal and shaft seal pad are arranged on the both sides of thrust bearing respectively, form two lubricant reservoirs respectively with bearing.In order to increase the bearing capacity of thrust bearing further, special oil storage tank established in four oil film wedge faces respectively, is outwards supplied by endoporus, forming half hydrostatic bearing.
Thrust bearing accurately locates with intermediate by 2 pins.Meanwhile, be fixed on intermediate by 4 screws.Shaft seal and shaft seal pad are arranged on the two ends of bearing respectively.The thickness of thrust bearing should be less 6 ~ 8 than the gap between shaft seal twinset, to guarantee the oil slick thickness that can form monolateral 3 ~ 4 between thrust bearing and shaft seal twinset.Shaft seal left end face contacts with impeller, and shaft seal pad its right end face contacts with the step of turbine shaft.At impeller head one nut, whole rotor is locked.
Claims (2)
1. the novel thrust bearing of turbocharger for gasoline engine, it comprises the thrust bearing body that a circular place is provided with opening, thrust bearing body central is provided with mounting hole, outwards oil film wedge face is provided with successively by mounting hole, drain pan and oil groove, it is characterized in that: described oil film wedge face is provided with four sector structures, each sector structure comprises adjacent fan-shaped inclined-plane and fan-shaped plane, the inclined-plane of each sector structure and the flat face of a upper sector structure, each sector structure is provided with an oil storage tank, oil storage tank is located at inclined-plane and planar abutment place, drain pan is looped around oil film wedge face surrounding, oil groove is semicircular structure, oil groove is looped around upper half part of drain pan, oil groove is provided with three oil ducts, and three oil ducts are communicated with three oil storage tanks respectively.
2. the novel thrust bearing of turbocharger for gasoline engine according to claim 1, is characterized in that: described oil duct and oil storage tank are just to being connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310746039.3A CN104747590A (en) | 2013-12-30 | 2013-12-30 | Gasoline engine turbocharger novel thrust bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310746039.3A CN104747590A (en) | 2013-12-30 | 2013-12-30 | Gasoline engine turbocharger novel thrust bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104747590A true CN104747590A (en) | 2015-07-01 |
Family
ID=53587724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310746039.3A Pending CN104747590A (en) | 2013-12-30 | 2013-12-30 | Gasoline engine turbocharger novel thrust bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104747590A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180159A (en) * | 2017-11-22 | 2018-06-19 | 中国北方发动机研究所(天津) | A kind of turbocharger adaptively correcting thrust bearing |
| CN109386542A (en) * | 2017-08-04 | 2019-02-26 | 常州环能涡轮动力股份有限公司 | A kind of Turbochargers in Diesel Engines thrust bearing and its installation method |
| CN110425222A (en) * | 2019-07-18 | 2019-11-08 | 常州嵘驰发动机技术有限公司 | A kind of bearing for fluid pump |
-
2013
- 2013-12-30 CN CN201310746039.3A patent/CN104747590A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386542A (en) * | 2017-08-04 | 2019-02-26 | 常州环能涡轮动力股份有限公司 | A kind of Turbochargers in Diesel Engines thrust bearing and its installation method |
| CN108180159A (en) * | 2017-11-22 | 2018-06-19 | 中国北方发动机研究所(天津) | A kind of turbocharger adaptively correcting thrust bearing |
| CN110425222A (en) * | 2019-07-18 | 2019-11-08 | 常州嵘驰发动机技术有限公司 | A kind of bearing for fluid pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102900479B (en) | Variable nozzle turbocharger regulating mechanism integrated on turbine shell | |
| CN104514631A (en) | Turbocharger with mixed flow turbine stage | |
| CN101182803A (en) | Adjustable consecutive composite turbocharging system | |
| CN104747597A (en) | Floating bearing of small type turbocharger | |
| CN104747590A (en) | Gasoline engine turbocharger novel thrust bearing | |
| CN100472042C (en) | Double wheel normal rotor engine | |
| Samoilenko et al. | Improvement of torque and power characteristics of V-type diesel engine applying new design of Variable geometry turbocharger (VGT) | |
| CN1861987A (en) | Pressurizer of miniturbine with mixed flow turbine and water cooled bearing body | |
| CN202900406U (en) | Turbocharged engine | |
| CN103912577A (en) | Split-type turbocharger thrust bearing | |
| CN203756725U (en) | Novel thrust bearing of turbosupercharger of gasoline engine | |
| CN203756726U (en) | Split-type turbosupercharger thrust bearing | |
| CN104763515A (en) | Diesel engine and vehicle | |
| CN203756591U (en) | Compressor impeller for small-sized turbine booster | |
| CN2147357Y (en) | J80 turbo supercharge and application thereof | |
| CN102852976A (en) | Turbocharger oil film suspension sliding bearing | |
| CN203756741U (en) | Floating bearing of small-size turbocharger | |
| US11041405B2 (en) | Turbocharger turbine wheel | |
| CN204099042U (en) | A kind of diesel engine and vehicle | |
| CN102383918A (en) | Turbocharger | |
| CN202391493U (en) | Gasoline engine turbocharger turbine casing integrated with exhaust pipe manifold | |
| CN204511532U (en) | Nozzle ring capable of changing cross sections, turbosupercharger and motor | |
| CN2835596Y (en) | Dual-wheel round rotor engine | |
| CN102852630A (en) | Suspension supporting structure of low damping oil of turbocharger | |
| CN203702327U (en) | Lubricating structure for turbocharger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150701 |