CN105909371A - Integrated type automotive mixed flow turbosuperchager - Google Patents

Integrated type automotive mixed flow turbosuperchager Download PDF

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Publication number
CN105909371A
CN105909371A CN201610496913.6A CN201610496913A CN105909371A CN 105909371 A CN105909371 A CN 105909371A CN 201610496913 A CN201610496913 A CN 201610496913A CN 105909371 A CN105909371 A CN 105909371A
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CN
China
Prior art keywords
integrated
bearing
turbine
mixed
rotating shaft
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
Application number
CN201610496913.6A
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Chinese (zh)
Inventor
吴贺松
熊劲松
段景宏
蒋向永
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Yi Sen Technology (shanghai) Co Ltd
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Yi Sen Technology (shanghai) Co Ltd
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Priority to CN201610496913.6A priority Critical patent/CN105909371A/en
Publication of CN105909371A publication Critical patent/CN105909371A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/08Cooling; Heating; Heat-insulation
    • F01D25/12Cooling
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/16Arrangement of bearings; Supporting or mounting bearings in casings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/16Arrangement of bearings; Supporting or mounting bearings in casings
    • F01D25/162Bearing supports
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24Casings; Casing parts, e.g. diaphragms, casing fastenings
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Abstract

The invention provides an integrated type automotive mixed flow turbosuperchager which comprises a rotating structure, a bearing structure, a bearing pedestal and a shell mechanism. The rotating mechanism comprises a rotating shaft, a turbine and an impeller, wherein the turbine and the impeller are arranged at the two ends of the rotating shaft. The bearing structure comprises a floating bearing and a thrust bearing which are annularly arranged in the middle of the rotating shaft. The bearing structure is sleeved with the bearing pedestal. The shell mechanism comprises an integrated type turbine shell arranged on the outer side of the turbine and the outer side of the bearing pedestal in a sleeving manner, an impeller shell arranged on the outer side of the impeller in a sleeving manner and a back plate connected with the integrated type turbine shell and the impeller shell. A vortex channel is arranged in the integrated type turbine shell, vortex channel outline areas of sections at different angles of the vortex channel are distributed linearly, and the vortex channel outline area of the section at the 0 degree is the minimum. The distance between the outmost edge of the turbine and the center axis of the rotating shaft is gradually increased from a turbine inlet to a turbine outlet, and the distance between the outmost edge of the position, corresponding to a turbine throat, of the turbine and the center axis of the rotating shaft is the maximum. The turbine shell and a bearing shell are integrated into the integrated type turbine shell, and therefore remarkable beneficial effects are obtained.

Description

A kind of automobile-used mixed-flow turbocharger of integrated form
Technical field
The present invention relates to automobile-used mechanical field, particularly relate to a kind of supercharger, specifically, be a kind of automobile-used mixed-flow turbocharger of integrated form.
Background technology
In the development course of internal combustion engine, applying of turbocharging technology is improving the specific power of internal combustion engine and is reducing the aspect such as discharge of internal combustion engine and played an important role.From the point of view of the development of current turbocharging technology, radial-flow turbocharger has reached at a relatively high technical merit, along with vehicle turbocharger constantly to high rotating speed, miniaturization, the development in Large Copacity direction, the specific speed of radial turbine is more and more higher, but its efficiency does not reaches optimum, and if reduce specific speed, although this problem can be solved, but so will increase the diameter of impeller, thus affect the transient response of supercharger.Comparatively speaking, mixed-flow turbocharger can not only improve bigger design freedom, and tend to obtain higher efficiency under the operating mode of low bulk ratio simultaneously, greatly meets the modal working condition requirement of vehicular engine, is that one more preferably selects.
At present, traditional mixed-flow turbocharger mainly includes shell, rotational structure, bearing arrangement, the parts such as fixed structure, as shown in Figure 8, it it is the structural representation of a kind of traditional mixed-flow turbocharger, wherein, rotational structure is mainly the rotating shaft f that two ends connect turbine d and impeller e respectively, shell is mainly by turbine case a, cartridge housing b and impeller housing c tri-part are constituted, accommodate the turbine case a of turbine d specifically, accommodate impeller housing c of impeller e and accommodate the cartridge housing b of bearing arrangement, turbine case a and cartridge housing b is connected by the fixing alignment of clamping element g, cartridge housing b and impeller housing c connect by the modes such as bolt are fixing;Bearing arrangement includes floating bearing h and thrust bearing i, is used for supporting rotating shaft f, and fixed structure includes the sealing plate j of fixing thrust bearing i;Further, inside turbine case a, it is provided with eddy current road k, inside cartridge housing b, is provided with cooling water channel l and oil leab m.
nullIn actual application,There is various problem in this traditional mixed-flow turbocharger,As due to the restriction of structure,Specifically,Owing to needing first to be installed on cartridge housing by turbine during assembling,Turbine case is installed the most again,Therefore,Left inside side (needing to cross the part of turbine as shown in Figure 8) at the turbine inlet in the eddy current road of turbine case must be provided with tangent plane n,And this tangent plane to the distance of spindle central axis more than the maximum outside diameter of turbine,This shape allowing for eddy current road can not be suitable for the needs of turbine,Thus cause the performance of turbine cannot give play to optimal state (as shown in Figure 7,Traditional mixed-flow turbocharger,Its 0 ° of section A ' eddy current road profile owing to being limited by assembling,Design requirement herein cannot be met,So that tradition mixed-flow turbocharger cannot give play to optimal performance under the conditions of traditional structure);In addition, owing to the operating temperature of reality application middle (center) bearing shell and turbine case differs greatly, the two-part reliability connected by clamping element is the most poor, this is just easy to there is gas leakage, flange distortion cracking equivalent risk, and cooling water channel is also because of the restriction of structure, have impact on its distribution in cartridge housing, thus be difficult to meet well the needs of cooling;Further, it is positioned at the turbine at turbine outlet to shout mouth and be typically proportionate with turbine flow, due to the restriction of shell mechanism so that the turbine of traditional mixed-flow turbocharger is shouted mouth and is difficult to increase again, therefore limit the increase of turbine flow, have impact on the work efficiency of turbine ground and improve further.
In the case of in tradition there are above-mentioned problems in mixed-flow turbocharger in actual application, the most automobile-used mixed-flow turbocharger of a kind of properity be those skilled in the art in the urgent need to.
Summary of the invention
Based on above-mentioned background, in order to overcome prior art various drawbacks present in the actual application, the invention provides a kind of automobile-used mixed-flow turbocharger of integrated form, by traditional turbine case and cartridge housing are integrated into integrated form turbine case, eliminate the connection between traditional bearing shell and turbine case, greatly reduce gas leakage and the risk of deformation;Further, integrated form turbine case after improvement efficiently solves the design of each parts brought because of the restriction of structure by problems such as limitations, meet the requirement being designed to ideally adapt to the needs of mixed flow turbine in eddy current road, thus substantially increase the work efficiency of mixed-flow turbocharger;Additionally, the turbine that the mixed-flow turbocharger with new construction can use less external diameter obtains the flow identical with conventional turbine simultaneously, so that turbine rotation inertia is lower and low speed response performance is more preferable.
In order to realize above-mentioned beneficial effect, the technical scheme is that a kind of automobile-used mixed-flow turbocharger of integrated form, including rotational structure, bearing arrangement, bearing block and casing mechanism;Described rotational structure includes rotating shaft and the turbine being located at described rotating shaft two ends and impeller;Described bearing arrangement includes that ring is located at floating bearing and the thrust bearing of described rotating shaft pars intermedia;Described bearing sleeve is located at the outside of described bearing arrangement;Described shell structure includes being set in the integrated form turbine case outside described turbine and bearing block, is set in the impeller housing outside described impeller and connects described integrated form turbine case and the backboard of described impeller housing;Wherein, being provided with eddy current road in described integrated form turbine case, the eddy current road contour area of the different angles section in described eddy current road is linearly distributed, and the eddy current road contour area of 0 ° of section is minimum;The outermost edge of described turbine is gradually increased from turbine inlet to turbine outlet to the distance of described spindle central axis, and it is maximum to the distance of described spindle central axis that turbine outermost edge corresponding at mouth shouted by turbine.
Further, it is additionally provided with cooling water channel in described integrated form turbine case and lubricating oil is imported and exported.Further, described bearing block is provided with and leads to described floating bearing and the oil leab of described thrust bearing, and by the way of interference fit, is press fit in described integrated form turbine case.Visible, the function ducts such as eddy current road, cooling water channel and lubricating oil import and export have all been integrated on described integrated form turbine case, further, cooling water channel is located between described eddy current road and oil leab, separate high-temp waste gas passage (eddy current road) and low-temperature lubrication passage (oil leab) by flowing through the cooling water of described cooling water channel, thus substantially increase the reliability of complete machine.
Further, described floating bearing and the described collar of thrust bearing are located at described rotating shaft pars intermedia and are installed on described bearing block.
Further, described backboard is by, in V-type clamp connection to described integrated form turbine case, being fixed on described thrust bearing on described bearing block simultaneously.
Further, described rotating shaft penetrates described bearing block from the turbine end of described integrated form turbine case, and passes from the impeller end of described integrated form turbine case, and described impeller is fixed in described rotating shaft by end nut.
Further, being integrated in by described backboard on described integrated form turbine case, described thrust bearing is fixed on described integrated form turbine case by wedge shape back-up ring by sealing plate, so that the structure of complete machine is compacter.
Further, described floating bearing and described thrust bearing become one formula bearing, and described integrated bearing is fixed on described integrated form turbine case by bearing pin, so, further reduces the complexity of described shell structure, improve reliability.
Preferably, being integrated in by described backboard on described integrated form turbine case, described thrust bearing is fixed on described integrated form turbine case by wedge shape back-up ring by sealing plate;Described floating bearing and described thrust bearing become one formula bearing, and described integrated bearing is fixed on described integrated form turbine case by bearing pin.
Further, described backboard and described bearing block are integrated on described integrated form turbine case.
Further, described floating bearing and described thrust bearing become one formula bearing, and described integrated bearing is fixed on described integrated form turbine case by bearing pin, are provided with the bearing thrust packing ring of carrying axial thrust on the end face of described integrated bearing.
Preferably, described backboard and described bearing block are integrated on described integrated form turbine case;Described floating bearing and described thrust bearing become one formula bearing, and described integrated bearing is fixed on described integrated form turbine case by bearing pin, are provided with the bearing thrust packing ring of carrying axial thrust on the end face of described integrated bearing.
More than it should be noted that when integrated bearing is fixed on integrated form turbine case by bearing pin, between integrated bearing and bearing pin, leave the least gap so that integrated bearing can shake in less scope, to reduce the vibrations of high speed rotating shaft.
Further, described rotating shaft passes above-mentioned integrated bearing, and two ends connect described turbine and described impeller respectively.
Further, described turbine and described rotating shaft collect further and are integrated, one-body molded, facilitate handling further and ensure that reliability of structure.
Accompanying drawing explanation
Fig. 1 is the structural representation of one of them embodiment of the automobile-used mixed-flow turbocharger of integrated form of the present invention;
Fig. 2 is the structural representation of one of them embodiment of the automobile-used mixed-flow turbocharger of integrated form of the present invention;
Fig. 3 is the structural representation of one of them embodiment of the automobile-used mixed-flow turbocharger of integrated form of the present invention;
Fig. 4 is the structural representation of one of them embodiment of the automobile-used mixed-flow turbocharger of integrated form of the present invention;
Fig. 5 is that the eddy current road of the automobile-used mixed-flow turbocharger of integrated form of the present invention is at different angles standard schematic diagram;
Fig. 6 is turbine and the eddy current road structural representation of the automobile-used mixed-flow turbocharger of integrated form of the present invention;
Fig. 7 is turbine and the eddy current road structural representation of the tradition automobile-used mixed-flow turbocharger of integrated form;
Fig. 8 is the structural representation of the tradition automobile-used mixed-flow turbocharger of integrated form.
Detailed description of the invention
The invention provides a kind of automobile-used mixed-flow turbocharger of integrated form, including rotational structure, bearing arrangement, bearing block and casing mechanism;Described rotational structure includes rotating shaft and the turbine being located at described rotating shaft two ends and impeller;Described bearing arrangement includes that ring is located at floating bearing and the thrust bearing of described rotating shaft pars intermedia;Described bearing sleeve is located at the outside of described bearing arrangement;Described shell structure includes being set in the integrated form turbine case outside described turbine and bearing block, is set in the impeller housing outside described impeller and connects described integrated form turbine case and the backboard of described impeller housing;Wherein, being provided with eddy current road in described integrated form turbine case, the eddy current road contour area of the different angles section in described eddy current road is linearly distributed, and the eddy current road contour area of 0 ° of section is minimum;The outermost edge of described turbine is gradually increased from turbine inlet to turbine outlet to the distance of described spindle central axis, and it is maximum to the distance of described spindle central axis that turbine outermost edge corresponding at mouth shouted by turbine.
nullSpecifically,With reference to the eddy current road shown in Fig. 5 different angles standard schematic diagram (said in full about eddy current road in different angles,It is all as standard,Those skilled in the art are with reference to the mark schematic diagram of Fig. 5,In conjunction with each technical characteristic in the technical program,Can easily understand that),When the eddy current road contour area of the different angles section in eddy current road is linearly distributed,It is the most preferable optimal,And the eddy current road contour area minimum of 0 ° of section is also optimal,And in fact,Traditional eddy current road (shown in Fig. 7) is owing to being limited by shell structure,It is difficult to accomplish the result of linear distribution,Further,Owing to the eddy current road of tradition mixed-flow turbocharger is provided with tangent plane n as described in the background art,0 ° of section A ' place eddy current road profile and turbine inlet d-1 limit at cross section together constitute with the sectional area that area is bigger,Therefore,Traditional mixed-flow turbocharger is both difficult to accomplish linear distribution,The design requirement of 0 ° of section cannot be met again,So that turbine cannot give play to optimal performance under the conditions of traditional structure.And accordingly, present inventor is creatively introduced by the concept of " integrated ", and combine the purpose of the application, obtain a kind of integrated form turbine case 7, it is provided with eddy current road in described integrated form turbine case 7, described eddy current road is possible not only to meet the eddy current road contour area of different angles section and is linearly distributed, and owing to Integrated design need not consider further that inconvenience during assembling, avoiding problems the introducing of unfavorable tangent plane, eddy current road contour area minimum 0 ° section A at the most infinitely small (the least be favourable) thus can be completely secured.
nullSpecifically,With reference to the turbine of the automobile-used mixed-flow turbocharger of integrated form of the present invention shown in Fig. 6 and eddy current road structural representation and and the turbine of the automobile-used mixed-flow turbocharger of traditional integrated form shown in Fig. 7 and eddy current road structural representation,Due to be positioned at turbine outlet turbine shout mouth and be proportionate with turbine flow,Therefore,In order to increase flow,Mouth shouted by corresponding increase turbine is necessary,But traditional mixed-flow turbocharger,Owing to being limited to by structure,I.e. inclined right (such as Fig. 7) location layout in eddy current road (limitation on the left of turbine case a makes traditional eddy current road be on the basis of a vertical in left side,The eddy current road profile of different angles section offsets the most to the right,As big in the eddy current road contour area at 240 ° of cross section E',And 0 ° of section A ' the eddy current road contour area at place is little,Eddy current road profile at 240 ° of cross section E' and 0 ° of section A ' place eddy current road profile on the left of tangent with vertical) the turbine case position that makes turbine outermost edge close has no idea to meet turbine and shouts the increase of mouthful d-3 and be distributed further out (shown in Fig. 7,The outermost edge of conventional turbine is gradually reduced to turbine outlet d-2 to the distance of described spindle central axis from turbine inlet d-1,It is the most maximum to the distance of described spindle central axis that turbine outermost edge corresponding at mouthful d-3 shouted by turbine,Even minimum);And accordingly, eddy current road in the application is (shown in Fig. 6 of trend distribution of overall left shift, as big in the eddy current road contour area at 240 ° of cross section E, and eddy current road contour area at 0 ° of section A is little, eddy current road profile at 240 ° of cross section E and the eddy current road profile at 0 ° of section A are not limited by left vertical face), first integrated form turbine case 7 allows its left shift, so that the close turbine case position of turbine 2 outermost edge can meet turbine and shout the increase of mouthful 2-3 and be distributed further out, the outermost edge of the most described turbine 2 is gradually increased to turbine outlet 2-2 to the distance of described spindle central axis from turbine inlet 2-1, it is maximum to distance L of described spindle central axis that turbine 2 outermost edge corresponding at mouthful 2-3 shouted by turbine.Visible the application newly designs shell structure so that the optimization of eddy current road and turbine 2 is possibly realized, such that it is able to obtain the flow identical with tradition supercharger with less turbine 2, reduces inertia, improves rotating speed and efficiency.
Above-mentioned discussion the most obviously can obtain in conjunction with the eddy current road described in Fig. 5 at the turbine of the automobile-used mixed-flow turbocharger of traditional integrated form described in the turbine of the automobile-used mixed-flow turbocharger of integrated form of the present invention described in different angles standard schematic diagram, Fig. 6 and eddy current road structural representation and Fig. 7 and eddy current road structural representation.
Alternatively, it is additionally provided with cooling water channel in described integrated form turbine case and lubricating oil is imported and exported.Further, described bearing block is provided with and leads to described floating bearing and the oil leab of described thrust bearing, and by the way of interference fit, is press fit in described integrated form turbine case.Visible, the function ducts such as eddy current road, cooling water channel and lubricating oil import and export have all been integrated on described integrated form turbine case, further, cooling water channel is located between described eddy current road and oil leab, separate high-temp waste gas passage (eddy current road) and low-temperature lubrication passage (oil leab) by flowing through the cooling water of described cooling water channel, thus substantially increase the reliability of complete machine.
Alternatively, described floating bearing and the described collar of thrust bearing are located at described rotating shaft pars intermedia and are installed on described bearing block.
Alternatively, described backboard is by, in V-type clamp connection to described integrated form turbine case, being fixed on described thrust bearing on described bearing block simultaneously.
Alternatively, described rotating shaft penetrates described bearing block from the turbine end of described integrated form turbine case, and passes from the impeller end of described integrated form turbine case, and described impeller is fixed in described rotating shaft by end nut.
Alternatively, being integrated in by described backboard on described integrated form turbine case, described thrust bearing is fixed on described integrated form turbine case by wedge shape back-up ring by sealing plate, so that the structure of complete machine is compacter.
Alternatively, described floating bearing and described thrust bearing become one formula bearing, and described integrated bearing is fixed on described integrated form turbine case by bearing pin, so, further reduces the complexity of described shell structure, improve reliability.
Alternatively, being integrated in by described backboard on described integrated form turbine case, described thrust bearing is fixed on described integrated form turbine case by wedge shape back-up ring by sealing plate;Described floating bearing and described thrust bearing become one formula bearing, and described integrated bearing is fixed on described integrated form turbine case by bearing pin.
Alternatively, described backboard and described bearing block are integrated on described integrated form turbine case.
Alternatively, described floating bearing and described thrust bearing become one formula bearing, and described integrated bearing is fixed on described integrated form turbine case by bearing pin, are provided with the bearing thrust packing ring of carrying axial thrust on the end face of described integrated bearing.
Alternatively, described backboard and described bearing block are integrated on described integrated form turbine case;Described floating bearing and described thrust bearing become one formula bearing, and described integrated bearing is fixed on described integrated form turbine case by bearing pin, are provided with the bearing thrust packing ring of carrying axial thrust on the end face of described integrated bearing.
Alternatively, described rotating shaft passes above-mentioned integrated bearing, and two ends connect described turbine and described impeller respectively.
Alternatively, described turbine and described rotating shaft collect further and are integrated, one-body molded, facilitate handling further and ensure that reliability of structure.
With reference to Fig. 1 and Fig. 6, the invention provides the embodiment of the automobile-used mixed-flow turbocharger of a kind of integrated form, the automobile-used mixed-flow turbocharger of described integrated form includes rotational structure, bearing arrangement, bearing block and casing mechanism;Described rotational structure includes rotating shaft 1 and the turbine 2 being located at described rotating shaft 1 two ends and impeller 3;Described bearing arrangement includes that ring is located at floating bearing 4 and the thrust bearing 5 of described rotating shaft 1 pars intermedia;Described bearing block 6 is set in the outside of described bearing arrangement;Described shell structure includes being set in the integrated form turbine case 7 outside described turbine 2 and bearing block 6, is set in the impeller housing 8 outside described impeller 3 and connects the backboard 9 of described integrated form turbine case 7 and described impeller housing 8;Wherein, being provided with eddy current road 10 in described integrated form turbine case, the eddy current road contour area of the different angles section in described eddy current road 10 is linearly distributed, and the eddy current road contour area at 0 ° of section A is minimum;The outermost edge of described turbine 2 is gradually increased to turbine outlet 2-2 to the distance of described rotating shaft 1 central axis from turbine inlet 2-1, and it is maximum to distance L of described spindle central axis that turbine outermost edge corresponding at mouthful 2-3 shouted by turbine;More specifically, be additionally provided with cooling water channel 11 and lubricating oil import and export 12 in described integrated form turbine case 7;Described bearing block is provided with the oil leab 13 leading to described floating bearing 4 and described thrust bearing 5, and by the way of interference fit, is press fit in described integrated form turbine case 7;Described backboard 9 is connected on described integrated form turbine case 7 by V-type clip 14, is fixed on described bearing block 6 by described thrust bearing 5 simultaneously;Described rotating shaft 1 penetrates described bearing block 6 from the turbine end of described integrated form turbine case 7, and passes from the impeller end of described integrated form turbine case 7, and described impeller is fixed in described rotating shaft 1 by end nut 15.
With reference to Fig. 2 and Fig. 6, the invention provides the embodiment of the automobile-used mixed-flow turbocharger of a kind of integrated form, the automobile-used mixed-flow turbocharger of described integrated form includes rotational structure, bearing arrangement, bearing block and casing mechanism;Described rotational structure includes rotating shaft 1 and the turbine 2 being located at described rotating shaft 1 two ends and impeller 3;Described bearing arrangement includes that ring is located at floating bearing 4 and the thrust bearing 5 of described rotating shaft 1 pars intermedia;Described bearing block 6 is set in the outside of described bearing arrangement;Described shell structure includes being set in the integrated form turbine case 7 outside described turbine 2 and bearing block 6, is set in the impeller housing 8 outside described impeller 3 and connects the backboard 9 of described integrated form turbine case 7 and described impeller housing 8;Wherein, being provided with eddy current road 10 in described integrated form turbine case, the eddy current road contour area of the different angles section in described eddy current road 10 is linearly distributed, and the eddy current road contour area at 0 ° of section A is minimum;The outermost edge of described turbine 2 is gradually increased to turbine outlet 2-2 to the distance of described rotating shaft 1 central axis from turbine inlet 2-1, and it is maximum to distance L of described spindle central axis that turbine outermost edge corresponding at mouthful 2-3 shouted by turbine;Being integrated on described integrated form turbine case 7 by described backboard 9, described thrust bearing 5 is fixed on described integrated form turbine case 7 by wedge shape back-up ring 17 by sealing plate 16.
With reference to Fig. 3 and Fig. 6, the invention provides the embodiment of the automobile-used mixed-flow turbocharger of a kind of integrated form, the automobile-used mixed-flow turbocharger of described integrated form includes rotational structure, bearing arrangement, bearing block and casing mechanism;Described rotational structure includes rotating shaft 1 and the turbine 2 being located at described rotating shaft 1 two ends and impeller 3;Described bearing arrangement includes that ring is located at floating bearing 4 and the thrust bearing 5 of described rotating shaft 1 pars intermedia;Described bearing block 6 is set in the outside of described bearing arrangement;Described shell structure includes being set in the integrated form turbine case 7 outside described turbine 2 and bearing block 6, is set in the impeller housing 8 outside described impeller 3 and connects the backboard 9 of described integrated form turbine case 7 and described impeller housing 8;Wherein, being provided with eddy current road 10 in described integrated form turbine case, the eddy current road contour area of the different angles section in described eddy current road 10 is linearly distributed, and the eddy current road contour area at 0 ° of section A is minimum;The outermost edge of described turbine 2 is gradually increased to turbine outlet 2-2 to the distance of described rotating shaft 1 central axis from turbine inlet 2-1, and it is maximum to distance L of described spindle central axis that turbine outermost edge corresponding at mouthful 2-3 shouted by turbine;Described backboard 9 and described bearing block 6 are integrated on described integrated form turbine case 7, described floating bearing 4 and described thrust bearing 5 become one formula bearing 18, described integrated bearing 18 is fixed on described integrated form turbine case 7 by bearing pin 20, is provided with the bearing thrust packing ring 19 of carrying axial thrust on the end face of described integrated bearing 18.
With reference to Fig. 4 and Fig. 6, the invention provides the embodiment of the automobile-used mixed-flow turbocharger of a kind of integrated form, the automobile-used mixed-flow turbocharger of described integrated form includes rotational structure, bearing arrangement, bearing block and casing mechanism;Described rotational structure includes rotating shaft 1 and the turbine 2 being located at described rotating shaft 1 two ends and impeller 3;Described bearing arrangement includes that ring is located at floating bearing 4 and the thrust bearing 5 of described rotating shaft 1 pars intermedia;Described bearing block 6 is set in the outside of described bearing arrangement;Described shell structure includes being set in the integrated form turbine case 7 outside described turbine 2 and bearing block 6, is set in the impeller housing 8 outside described impeller 3 and connects the backboard 9 of described integrated form turbine case 7 and described impeller housing 8;Wherein, being provided with eddy current road 10 in described integrated form turbine case, the eddy current road contour area of the different angles section in described eddy current road 10 is linearly distributed, and the eddy current road contour area at 0 ° of section A is minimum;The outermost edge of described turbine 2 is gradually increased to turbine outlet 2-2 to the distance of described rotating shaft 1 central axis from turbine inlet 2-1, and it is maximum to distance L of described spindle central axis that turbine outermost edge corresponding at mouthful 2-3 shouted by turbine;Described backboard 9 is integrated on described integrated form turbine case 7, described thrust bearing 5 is fixed on described integrated form turbine case 7 by wedge shape back-up ring 17 by sealing plate 16, described floating bearing 3 and described thrust bearing 4 become one formula bearing 18, described integrated bearing 18 is fixed on described integrated form turbine case 7 by bearing pin 20, described rotating shaft 1 is through above-mentioned integrated bearing 18, two ends connect described turbine 2 and described impeller 3 respectively, and described turbine 2 and described rotating shaft 1 collect further and be integrated.
Being described in detail the specific embodiment of the present invention above, but it is intended only as example, the present invention is not restricted to particular embodiments described above.To those skilled in the art, any equivalent modifications carrying out the present invention and replacement are the most all among scope of the invention.Therefore, the impartial conversion made without departing from the spirit and scope of the invention and amendment, all should contain within the scope of the invention.

Claims (10)

1. the automobile-used mixed-flow turbocharger of integrated form, it is characterised in that include rotational structure, bearing arrangement, bearing block and casing mechanism;Described rotational structure includes rotating shaft and the turbine being located at described rotating shaft two ends and impeller;Described bearing arrangement includes that ring is located at floating bearing and the thrust bearing of described rotating shaft pars intermedia;Described bearing sleeve is located at the outside of described bearing arrangement;Described shell structure includes being set in the integrated form turbine case outside described turbine and bearing block, is set in the impeller housing outside described impeller and connects described integrated form turbine case and the backboard of described impeller housing;Wherein, being provided with eddy current road in described integrated form turbine case, the eddy current road contour area of the different angles section in described eddy current road is linearly distributed, and the eddy current road contour area of 0 ° of section is minimum;The outermost edge of described turbine is gradually increased from turbine inlet to turbine outlet to the distance of described spindle central axis, and it is maximum to the distance of described spindle central axis that turbine outermost edge corresponding at mouth shouted by turbine.
The automobile-used mixed-flow turbocharger of integrated form the most according to claim 1, it is characterised in that be additionally provided with cooling water channel in described integrated form turbine case and lubricating oil is imported and exported.
The automobile-used mixed-flow turbocharger of integrated form the most according to claim 1, it is characterised in that described bearing block is provided with and leads to described floating bearing and the oil leab of described thrust bearing, and by the way of interference fit, be press fit in described integrated form turbine case.
The automobile-used mixed-flow turbocharger of integrated form the most according to claim 1, it is characterised in that described backboard is by, in V-type clamp connection to described integrated form turbine case, being fixed on described thrust bearing on described bearing block simultaneously.
The automobile-used mixed-flow turbocharger of integrated form the most according to claim 1, it is characterized in that, described rotating shaft penetrates described bearing block from the turbine end of described integrated form turbine case, and passes from the impeller end of described integrated form turbine case, and described impeller is fixed in described rotating shaft by end nut.
The automobile-used mixed-flow turbocharger of integrated form the most according to claim 1, it is characterised in that described turbine and described rotating shaft collect further and be integrated.
The automobile-used mixed-flow turbocharger of integrated form the most according to claim 1, it is characterised in that being integrated in by described backboard on described integrated form turbine case, described thrust bearing is fixed on described integrated form turbine case by wedge shape back-up ring by sealing plate.
8. according to the automobile-used mixed-flow turbocharger of the integrated form described in claim 1 or 7, it is characterised in that described floating bearing and described thrust bearing become one formula bearing, and described integrated bearing is fixed on described integrated form turbine case by bearing pin.
The automobile-used mixed-flow turbocharger of integrated form the most according to claim 1, it is characterised in that described backboard and described bearing block are integrated on described integrated form turbine case.
The automobile-used mixed-flow turbocharger of integrated form the most according to claim 9, it is characterized in that, described floating bearing and described thrust bearing become one formula bearing, described integrated bearing is fixed on described integrated form turbine case by bearing pin, is provided with the bearing thrust packing ring of carrying axial thrust on the end face of described integrated bearing.
CN201610496913.6A 2016-06-30 2016-06-30 Integrated type automotive mixed flow turbosuperchager Pending CN105909371A (en)

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Application publication date: 20160831