CN102383918A - Turbocharger - Google Patents
Turbocharger Download PDFInfo
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- CN102383918A CN102383918A CN2011103240662A CN201110324066A CN102383918A CN 102383918 A CN102383918 A CN 102383918A CN 2011103240662 A CN2011103240662 A CN 2011103240662A CN 201110324066 A CN201110324066 A CN 201110324066A CN 102383918 A CN102383918 A CN 102383918A
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Abstract
The invention provides a turbocharger which comprises a shell, a shaft, a turbine and an impeller, wherein the shell comprises a turbine chamber and an impeller chamber which are axially arranged, the turbine chamber is provided with an engine exhaust inlet and an exhaust flange, and the impeller chamber is provided with an air inlet and an intercooling air pipe; the shaft is arranged in the turbine chamber and the impeller chamber in a penetrating manner; the turbine is positioned in the turbine chamber and arranged on a first end of the shaft; the impeller is positioned in the impeller chamber and arranged on a second end of the shaft; and the shell is internally provided with shaft support members of at least three support shafts, the shaft support members comprise a first support member arranged on one side of the turbine, a second support member arranged on one side of the impeller, and a third support member arranged between the first support member and the second support member. The turbocharger provided by the invention has the advantages of achieving the purposes of reducing the air inlet temperature and improving the charge efficiency, increasing the supporting capacity, prolonging the service life of a bearing, and improving the engine complete machine performance.
Description
Technical field
The present invention relates to engine art, particularly a kind of turbosupercharger.
Background technique
At present, petrol engine and diesel engine product have all adopted supercharging technology mostly, improve the reinforcing degree of motor with this, develop to lightweight.International supercharging technology is representative with Hall (HOLSET), and a lot of famous engine works commercial city is in utilization Hall turbosupercharger.Traditional supercharging technology has been used more than 50 years, aspect the working life of improving supercharging efficient and prolongation bearing significant progress is being arranged.But in recent years, existing supercharging technology does not have major technological breakthrough, stagnates, and it is technical that people almost have been put into the automatically controlled and fuel injection of motor to whole energy, has but ignored the important means of this raising engine performance of supercharging technology.
A kind of exemplary of turbosupercharger of the prior art has been shown among Fig. 1.This turbosupercharger is made up of left and right two-part, and disjunctor is installed on the motor.The turbine chamber of right-hand member connects the total air escape pipe 27 of each cylinder discharge manifold of motor, and the air inlet inlet 21 of left end connects the air-cleaner snorkel road.Engine exhaust gets into the pressurized machine housing by the engine exhaust inlet of right-hand member turbine chamber; Its exhaust kinetic energy drives turbine 26 (being exhaust gas turbine) high speed rotating; Drive the axle 24 is connected with turbine 26 and be connected that impeller 23 (being active wheel) rotate in the same way on the axle 24, waste gas passes through exhaust flange 25 discharges at last.Utilized exhaust kinetic energy; The fresh air that sucks from filter cleaner enters the mouth 21 through air inlet; Be pressed into the intercooler pipeline 22 that leads to intercooler by impeller 23, get into air intake branch of the engine through the cooled air of intercooler and be inhaled in the cylinder again, thereby improve volumetric efficiency.Turbine shaft is by left and right housing and two bearings (left spring bearing 28, right spring bearing 29) supporting, and the bearing end has all been installed oil sealing, prevents oil leakage.Distance between the two bearings is S1, and the distance between two turbines is L1.
Existing turbocharger operation temperature is higher; Sealing is prone to aging and causes leakage of oil; With the axle locking, therefore need the intercooler of big specification could guarantee to reduce intake temperature and raising volumetric efficiency when serious, and reinforcing degree and effects of energy saving and emission reduction are away from optimum working state.
Summary of the invention
The present invention provides a kind of turbosupercharger, under the situation that does not change other parts of motor, improves the structure of existing turbosupercharger, reaches the reduction intake temperature, improves charging efficiency, strengthens the purpose of enabling capabilities.
The present invention realizes through following technological scheme: a kind of turbosupercharger; Comprise: housing; Comprise the turbine chamber and the wheel chamber that arrange vertically, have engine exhaust inlet and exhaust flange on the turbine chamber, have air inlet and middle refrigerator pipe in the wheel chamber; Axle is located in turbine chamber and the wheel chamber; Turbine is arranged in turbine chamber, is installed in axle first end; Impeller is arranged in the wheel chamber, is installed in second end of axle; Be provided with the axle supporting element of at least three back shafts in the housing, comprise first supporting element that is positioned at turbine one side, be positioned at second supporting element of impeller one side, and the 3rd supporting element between first supporting element and second supporting element.
Further; Have the engine exhaust inlet that is arranged on the radial surface on the turbine chamber and be arranged on the exhaust flange on the end face; The engine exhaust inlet is communicated with the motor total air escape pipe; Have the middle refrigerator pipe that is arranged on the radial surface in the wheel chamber and be arranged on the air inlet on the end face, air inlet is communicated with air-strainer, and middle refrigerator pipe is communicated with intercooler.
Further, the length of axle is more than 140 millimeters.
Further, the length of axle is 140 millimeters to 260 millimeters.
Further, the length of axle is more than 260 millimeters.
Further, supporting element is sliding bearing or rolling bearing or floating bearing.
Further, on housing, the turbine chamber chamber surrounding shaft extends first cylindrical shell, and the impeller cavity chamber surrounding shaft extends second cylindrical shell, and first cylindrical shell is connected with second cylindrical shell.
Further, the joint of first cylindrical shell and second cylindrical shell is provided with the sealing thermal insulating pad.
Further, the sealing thermal insulating pad is processed by asbestos material.
Further, the 3rd supporting element is arranged on first cylindrical shell.
Through technique scheme, major advantage of the present invention is, reaches the reduction intake temperature, improved the purpose of charging efficiency; Strengthen bearing value, prolong bearing working life; Improved motor complete machine performance.Promptly improve power character, Economy and the reliability of motor, reached the purpose of energy-saving and emission-reduction simultaneously.
Description of drawings
The accompanying drawing that constitutes a part of the present invention is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, does not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 shows the schematic representation of a turbosupercharger of the prior art;
Fig. 2 shows the structural representation of the turbosupercharger of one embodiment of the present of invention; And
Fig. 3 shows the variation relation plotted curve between temperature and the wheelspan of calming the anger of the turbosupercharger of one embodiment of the present of invention.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
The turbosupercharger of one embodiment of the present of invention has been shown among Fig. 2, and this turbosupercharger is made up of left and right two-part, and left and right housing seals respectively, and disjunctor is installed on the motor, forms two chambers.The radial surface of the turbine chamber of right-hand member is provided with the total air escape pipe 7 that the engine exhaust inlet is communicated with each cylinder outlet pipe of motor, and the end face of the wheel chamber of left end is provided with air inlet 1 and connects the air-cleaner snorkel road.Engine exhaust gets into the pressurized machine housing by the engine exhaust inlet of right-hand member; Its exhaust kinetic energy drives turbine 6 (being exhaust gas turbine) high speed rotating; Driving axle 4 that is connected with turbine 6 and the impeller 3 (being active wheel) that is connected on the axle 4 rotates in the same way; Last waste gas is discharged through the exhaust flange 5 that is arranged on right-hand member chamber end face, and exhaust flange 5 can connect outlet pipe.Impeller 3 has utilized exhaust kinetic energy; The fresh air that sucks from filter cleaner passes through air intlet 1; Be pressed into the radial surface that is arranged on the left end chamber by impeller 3; The intercooler pipe 2 that leads to intercooler gets into air intake branch of the engine through the cooled air of intercooler and is inhaled in the cylinder, thereby improves volumetric efficiency.(left back shaft 12, right spring bearing 13 support axle 4, and the bearing end has all been installed oil sealing, prevents oil leakage by left and right housing and two spring bearings.As improvements over the prior art, the objective of the invention is to reduce intake temperature.For this reason, the axle 4 of turbosupercharger is lengthened out, and has changed the wheelspan between turbine 6 and the impeller 3 thus.Wheelspan after the increase has reduced the influence of the high-temperature exhaust air of exhaust gas turbine 6 one ends to air intlet 1, and intake temperature is reduced greatly, and air density rises, and charging efficiency is improved, and more helps the work of motor.Simultaneously,, on the basis of former dual-supporting, increase a center support bearing 11, constitute three supportings through changing the structure of turbosupercharger.
On the housing, right-hand member turbine chamber chamber surrounding shaft 4 extends the right side cylindrical shell, and left end impeller cavity chamber surrounding shaft 4 extends the left side cylindrical shell, and the right side cylindrical shell is connected with the left side cylindrical shell.Another measure that reduces intake temperature is in the connecting flange of left pressurized machine housing and right pressurized machine housing; Just the joint of left side cylindrical shell and right side cylindrical shell has been installed the sealing gasket 10 with the material of asbestos excellent heat insulating performance; It will play heat-blocking action preferably, further play the effect that reduces intake temperature.
As shown in Figure 2; The present invention has adopted three bearings vertically, and left spring bearing 12, intermediate support bearing 11, right spring bearing 13 come back shaft 4, bear the active force of turbine and impeller, have prevented the bending deflection and the dither of extension shaft, have prolonged the working life of bearing.Distance between left side spring bearing 12 and the intermediate support bearing 11 is S1; Distance between intermediate support bearing 11 and the right spring bearing 13 is S2; Like this; The distance of S1+S2 has increased 30%～45% than the bearing length of support of existing turbosupercharger, makes that the distance between turbine 6 and the impeller 3 has increased to present L2 by original L1 shown in Figure 1.Generally speaking, the turbosupercharger of automobile-used 100KW～450KW is selected wheelspan between 110mm～180mm roughly, and peculiar to vessel is much bigger.The present invention is primarily aimed at automobile-used, generally can in 140mm～260mm scope, select wheelspan, increases 30%～45% than existing technology.Certainly, along with power increases, wheelspan is also along with increase.Because of this distance receives the restriction of motor boundary dimension, can not unrestrictedly strengthen, correct method is to select according to the variation relation of calm the anger temperature and wheelspan, and an embodiment's the variation relation plotted curve between temperature and the wheelspan of calming the anger has been shown among Fig. 3.When turbosupercharger was axial arranged along engine crankshaft, the turbosupercharger scheme of three supportings of the present invention and extension shaft had bigger expansion leeway and is easy to realization.When turbosupercharger is arranged or when tilting, adopted the turbosupercharger scheme of three supportings of the present invention and extension shaft will receive the big or small certain limitation in space, but still can effectively adopt along engine crankshaft Vertical direction (motor width direction).When receiving the motor width dimension limitations, can be according to the variation relation of calm the anger temperature and wheelspan, reasonably the amount of elongation of chosen axis neither exceeds the requirement that width satisfies cooling again.
As shown in Figure 2; Turbine 6 is installed on the axle by key 14 with impeller 3, and key 14 is used for circumference to be fixed, and makes axial restraint by fastening piece.Be positioned at the left spring bearing 12 of left and right end and the outside of right spring bearing 13 and respectively installed an oil sealing, be respectively left side oil sealing 8 and right side oil sealing 9, be used for preventing the leakage of lubricant oil.Pressurized machine housing and left end oil sealing 8 have formed confined space jointly with exhaust flange 5 and right-hand member oil sealing 9, so any side of the bearing 11 in the middle of being positioned at need not installed oil sealing.All bearings all are mounted in the bearing support of housing, are used in the turbosupercharger on the smaller power motor, can select rolling bearing for use usually, are used in than the turbosupercharger on the high power engine, then can select sliding bearing or floating bearing for use.The present invention has increased a bearing newly with bearing support with respect to the turbocharger arrangement of existing technology.Could satisfy the lengthening of axle and the increasing of wheelspan like this, could satisfy under the prerequisite that does not change suction pressure and flow, reduce intake temperature, improve the requirement of volumetric efficiency.
According to turbosupercharger of the present invention, have following beneficial effect:
1, under the prerequisite that does not change original other any part of motor, only through changing the structure of existing turbosupercharger, extension shaft with add Long Wheelbase, just can reach the reduction intake temperature, improved the purpose of charging efficiency;
2, adopt described three supporting and extension shaft structures, can strengthen bearing value, prolong bearing working life, make that turbosupercharger can be toward at a high speed, bigger exhaust kinetic energy direction develops;
3, the vibration of turbosupercharger itself and noise are littler;
4, on the one hand being that the power per liter and the torque per liter of complete machine is bigger, is to have improved combustion regime on the other hand, has created advantage for further energy-saving and noise-reducing, simultaneously, also is more conducive to complete machine and develops to lightweight.
5, more original technology more can prevent engine lubrication deterioration of oil and the turbosupercharger leakage that high temperature causes;
6, can adopt the more intercooler of small volume and heat diffusion area.
In sum, the present invention has not only changed the structure of existing turbosupercharger, has also improved motor complete machine performance simultaneously.Promptly improve power character, Economy and the reliability of motor, reached the purpose of energy-saving and emission-reduction simultaneously.Particularly; Improved power per liter, torque per liter and the weight ratio index of complete machine, the index of present international most advanced level is improved about 15%～30% again.Make bavin, petrolic reinforcement reach a higher level.Racing engine, all are automobile-used, peculiar to vessel, generating is with, ordnance engines, no matter are petrol engine or diesel engine, and the turbo charged motor of all needs all can adopt the turbosupercharger of three supportings according to the invention and extension shaft.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. turbosupercharger comprises:
Housing comprises the turbine chamber and the wheel chamber that arrange vertically, has engine exhaust inlet and exhaust flange (5) on the said turbine chamber, has air inlet (1) and middle refrigerator pipe (2) in the said wheel chamber;
Axle (4) is located in said turbine chamber and the said wheel chamber;
Turbine (6) is arranged in said turbine chamber, is installed in first end of said axle (4);
Impeller (3) is arranged in said wheel chamber, is installed in second end of said axle (4);
It is characterized in that,
Be provided with at least three axle supporting elements that support said axle (4) in the said housing; Comprise first supporting element (13) that is positioned at said turbine (6) one sides; Be positioned at second supporting element (12) of said impeller (3) one sides, and be positioned at the 3rd supporting element (11) between said first supporting element (13) and said second supporting element (12).
2. turbosupercharger according to claim 1; It is characterized in that; Have on the said turbine chamber and be arranged on the said engine exhaust inlet on the radial surface and be arranged on the said exhaust flange (5) on the end face; Said engine exhaust inlet is communicated with motor total air escape pipe (7); Have in the said wheel chamber and be arranged on the said middle refrigerator pipe (2) on the radial surface and be arranged on the said air inlet (1) on the end face, said air inlet (1) connection air-strainer, said middle refrigerator pipe (2) connection intercooler.
3. turbosupercharger according to claim 1 is characterized in that, the length of said axle (4) is more than 140 millimeters.
4. turbosupercharger according to claim 2 is characterized in that, the length of said axle (4) is 180 millimeters to 260 millimeters.
5. turbosupercharger according to claim 2 is characterized in that, the length of said axle (4) is more than 260 millimeters.
6. turbosupercharger according to claim 1 is characterized in that, said axle supporting element is sliding bearing or rolling bearing or floating bearing.
7. turbosupercharger according to claim 1; It is characterized in that on housing, said turbine chamber is extended first cylindrical shell around said axle (4); Second cylindrical shell extends around said axle (4) in said wheel chamber, and said first cylindrical shell is connected with second cylindrical shell.
8. turbosupercharger according to claim 7 is characterized in that, the joint of said first cylindrical shell and said second cylindrical shell is provided with sealing thermal insulating pad (10).
9. turbosupercharger according to claim 8 is characterized in that, said sealing thermal insulating pad (10) is processed by asbestos material.
10. turbosupercharger according to claim 7 is characterized in that, said the 3rd supporting element (11) is arranged on said first cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103240662A CN102383918A (en) | 2011-10-21 | 2011-10-21 | Turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103240662A CN102383918A (en) | 2011-10-21 | 2011-10-21 | Turbocharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102383918A true CN102383918A (en) | 2012-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103240662A Pending CN102383918A (en) | 2011-10-21 | 2011-10-21 | Turbocharger |
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| Country | Link |
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| CN (1) | CN102383918A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148014A (en) * | 2013-04-01 | 2013-06-12 | 中国北方发动机研究所(天津) | Split heat-insulation double-sided water pump impeller |
| CN108506083A (en) * | 2018-05-12 | 2018-09-07 | 福州大学 | A kind of axial displacement turbocharger and its application method |
| CN115163291A (en) * | 2022-06-27 | 2022-10-11 | 北京航空航天大学 | Air turbocharging system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5076755A (en) * | 1989-04-13 | 1991-12-31 | Isuzu Motors Limited | Bearing device for high speed rotary shaft |
| CN200943523Y (en) * | 2006-07-31 | 2007-09-05 | 杨开明 | Small-sized vehicular engine turbine supercharger with self-radiator for cooling |
| CN201635773U (en) * | 2010-02-25 | 2010-11-17 | 杨小芝 | Turbocharger spindle |
| CN201771555U (en) * | 2010-09-13 | 2011-03-23 | 无锡科博增压器有限公司 | Half-floatation, half ball bearing turbocharger |
-
2011
- 2011-10-21 CN CN2011103240662A patent/CN102383918A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5076755A (en) * | 1989-04-13 | 1991-12-31 | Isuzu Motors Limited | Bearing device for high speed rotary shaft |
| CN200943523Y (en) * | 2006-07-31 | 2007-09-05 | 杨开明 | Small-sized vehicular engine turbine supercharger with self-radiator for cooling |
| CN201635773U (en) * | 2010-02-25 | 2010-11-17 | 杨小芝 | Turbocharger spindle |
| CN201771555U (en) * | 2010-09-13 | 2011-03-23 | 无锡科博增压器有限公司 | Half-floatation, half ball bearing turbocharger |
Non-Patent Citations (1)
| Title |
|---|
| 瞿俊鸣等: "《中华人民共和国国家标准》", 25 November 2003 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148014A (en) * | 2013-04-01 | 2013-06-12 | 中国北方发动机研究所(天津) | Split heat-insulation double-sided water pump impeller |
| CN108506083A (en) * | 2018-05-12 | 2018-09-07 | 福州大学 | A kind of axial displacement turbocharger and its application method |
| CN108506083B (en) * | 2018-05-12 | 2024-04-19 | 福州大学 | Axial moving type turbocharger and application method thereof |
| CN115163291A (en) * | 2022-06-27 | 2022-10-11 | 北京航空航天大学 | Air turbocharging system |
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Application publication date: 20120321 |