CN107208657A - The compressor housing and its manufacture method of booster - Google Patents
The compressor housing and its manufacture method of booster Download PDFInfo
- Publication number
- CN107208657A CN107208657A CN201680010144.2A CN201680010144A CN107208657A CN 107208657 A CN107208657 A CN 107208657A CN 201680010144 A CN201680010144 A CN 201680010144A CN 107208657 A CN107208657 A CN 107208657A
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- China
- Prior art keywords
- mentioned
- slide unit
- blank
- inner circumferential
- round
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/16—Sealings between pressure and suction sides
- F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
- F04D29/162—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of a centrifugal flow wheel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/40—Application in turbochargers
Abstract
The decline that compression efficiency can be prevented is provided and confining force to slide unit is able to maintain that, the compressor housing of booster favourable in terms of cost and its manufacture method.The compressor housing (1) of booster possesses the housing body (20) of receiving impeller (10) and is formed with the slide unit (30) of the ring-type in shield face (31).Slide unit (30) possesses the flange part (32) prominent to radial outside, and is disposed in the inner circumferential recess (21) in the inner peripheral surface formation of housing body (20).And, inner circumferential recess (21) is pressed into by the round part (40) for being formed as round along inner circumferential recess (21), so as to the clamped flanges portion (32) between the pressing direction leading flank (41) of round part (40) and the recess opposite face (213) of the inner circumferential recess (21) relative with pressing direction leading flank (41), thus slide unit (30) is fixed.
Description
Technical field
The present invention relates to the compressor housing of booster and its manufacture method.
Background technology
(the English of compressor used in the boosters such as the turbocharger of automobile：Compressor) there is compression case
Body, the compressor housing is configured to accommodate impeller, and possesses：Air inlet, it sucks air towards impeller；Volute room
(Japanese：ス ク ロ ー Le room), it forms and imported the air discharged from impeller in the outer circumferential side of impeller in the circumferential；And
Shield (English：Shroud) face, it is relative with impeller.
In the compressor of above-mentioned composition, by reduce as much as possible impeller blade and compressor housing shield face it
Between gap, so as to improve the compression efficiency of compressor.
But, if reducing the gap, in the blade and pressure of the impeller such as because of the runout of vibration and/or impeller rotating shaft
In the case that the shield face of contracting casing body is contacted, it is possible to which impeller can be damaged.
Therefore, proposed and be constructed as below in the past：It is mounted with the part in the formation shield face of compressor housing with than impeller
The formation such as the soft resin of blade slide unit (patent document 1).
Accordingly, even if contingency is because of the blade and the shield of compressor housing of the impellers such as the runout of vibration and/or impeller rotating shaft
Cover is contacted, and the slide unit that also can be only installed on the part to form the shield face is cut to impeller will not be damaged, impeller
Gap between blade and the shield face of compressor housing still maintains small.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 9-170442 publications
The content of the invention
Problems to be solved by the invention
However, in above-mentioned patent document 1, in order to which slide unit is fixed on into guard section, slide unit is extended to not
Untill the diffusion part relative with impeller, and link fixation is fastened by screwed part via the screwed hole for being arranged at diffusion part.
Also, in the way of causing the head of screwed part not protruded from the diffusion of slide unit towards fluid passage, screw thread will be stored
The housing recess on the head of part is arranged at the diffusingsurface of slide unit.But, the housing recess to fluid passage openings, so
Because being impacted to the air inlet flowed in fluid passage, it can probably upset the flowing of air-flow and cause the decline of compression efficiency.
If in addition, having water etc. in housing recess product, having this worry of one of the reason for turning into corrosion.Therefore,
Consideration is accommodated in after the housing recess by the head of screwed part, with putty (English：) etc. putty the storage is filled recessed
Portion.But, accordingly, there is the shortcomings of manufacturing process's increase, material cost increase.
In addition, the region in order to ensure screwed part to be fixed on to slide unit, slide unit is extended to as not with
Untill the diffusion part in the relative region of impeller, thus slide unit turn into compare maximization.The formation material of slide unit and pressure
The formation material of contracting casing body is compared, and typically cost is high.Therefore, it is unfavorable in terms of cost if slide unit maximizes.
The present invention be in view of such conventional the problem of point and make, be intended to provide the decline that can prevent compression efficiency, simultaneously
And be able to maintain that confining force to slide unit, the compressor housing of booster favourable in terms of cost and its manufacturer
Method.
Technical teaching for solving the problem was
The present invention a technical scheme be, a kind of compressor housing of booster, it is characterised in that
Possess：
Housing body, impeller can be accommodated by consisting of, and in the inner peripheral surface shape annular in shape of the periphery along the impeller
Into there is concave inner circumferential recess；
The slide unit of ring-type, it is disposed in above-mentioned inner circumferential recess, and inner circumferential surface formation is relative with above-mentioned impeller
Shield face；And
Round part, its inner peripheral surface along above-mentioned housing body is formed as round, and along the axial direction of above-mentioned impeller
Above-mentioned inner circumferential recess is pressed into,
Above-mentioned inner circumferential recess has：Recess electrolysis, its pressing direction along above-mentioned round part and is crimped on
The radial outer side of above-mentioned round part；With recess opposite face, it is relative with the pressing direction leading flank of above-mentioned round part,
Above-mentioned slide unit has the flange part prominent to the radial outside of the slide unit,
Above-mentioned inner circumferential recess is pressed into by above-mentioned round part, thus above-mentioned pressing direction leading flank with it is above-mentioned recessed
Above-mentioned flange part is hold between portion's opposite face.
Another technical scheme of the present invention is that a kind of manufacture method of the compressor housing of booster, is in manufacture
The method for stating the compressor housing of booster, it is characterised in that
Including：
Unitary blank formation process, it is formed by the shell blank of the blank as above-mentioned housing body and as above-mentioned circle
The unitary blank that the round blank of the blank of shape part is integrally formed；With
Blank process segmentation process, its above-mentioned unitary blank is processed and split and formed above-mentioned housing body unit and
Above-mentioned round part.
The effect of invention
According to the compressor housing of above-mentioned booster, slide unit is fixed via its flange part, therefore need not
Screwed part for fixing slide unit.Therefore, it is not required that in order that screwed part a part not from diffusion towards
The conventional housing recess that fluid passage is protruded and set.Thereby, it is possible in the shield face of slide unit, not upset by from impeller
The air of discharge fluidly, prevent the decline of compression efficiency.
In addition, according to the compressor housing of above-mentioned booster, by the inner circumferential that round part is pressed into housing body
Recess, so that the flange part of slide unit is pressed from both sides by the recess opposite face of the pressing direction leading flank of round part and inner circumferential recess
Hold.
In addition, without setting conventional housing recess in diffusingsurface, therefore will not have water etc. in diffusion area, also without corruption
The sorrow of erosion.Furthermore, it is not necessary that the process of conventional housing recess is filled with putty etc., therefore material cost will not increase.In addition,
Need not in order to ensure screwed part to be fixed on to the region of slide unit, and slide unit is extended to as not with impeller phase
To region diffusion part, it is favourable in terms of cost therefore, it is possible to minimize slide unit.
According to the manufacture method of the compressor housing of above-mentioned booster, the supercharging for functioning as described above effect can be manufactured
The compressor housing of device.Moreover, in unitary blank formation process, being formed the shell blank of the blank as housing body
The unitary blank being integrally formed with the round blank of the blank as round part, in blank processing segmentation process,
After being processed to unitary blank, it is divided into housing body and round part and forms both.That is, it can add
In the process of work housing body, the processing and segmentation of round part are carried out.Thus, with making two blanks respectively and each carrying out
The situation of processing is compared, and can simplify manufacturing process.
In addition, housing body and round part distinguish shape from the shell blank and round blank cut out from the unitary blank
Into, therefore housing body and round part form material by identical and be made.Therefore, both coefficients of linear thermal expansion are equal, because
Even if this occurs thermal expansion thermal contraction because of temperature change at both, can also prevent the radial outer side of round part with it is interior
The decline of crimp force at the pressure contact portion of the recess electrolysis of all recesses.Thereby, it is possible to maintain round part relative to housing master
The press-in state of the inner circumferential recess of body.As a result, even if occurring temperature change, prevented also from pair at the inner circumferential recess of housing body
The decline of the confining force of slide unit.
According to the present invention, as described above, it is possible to provide the decline that can prevent compression efficiency and be able to maintain that to sliding part
The confining force of part, the compressor housing of booster favourable in terms of cost and its manufacture method.
Brief description of the drawings
Fig. 1 be embodiment 1 in, possess booster compressor housing turbocharger sectional view.
Fig. 2 be Fig. 1 in, a part of enlarged drawing of slide unit.
Fig. 3 be Fig. 1 in, the III-III positions sectional view of the compressor housing of booster.
Fig. 4 is the unitary blank formation work in the manufacture method for the compressor housing for illustrating in embodiment 1, booster
The sectional view of sequence.
Fig. 5 is the blank processing segmentation work in the manufacture method for the compressor housing for illustrating in embodiment 1, booster
The sectional view of sequence.
Fig. 6 is the section view of the press-fitting step in the manufacturing process for the compressor housing for illustrating in embodiment 1, booster
Figure.
Fig. 7 is the shield face formation process in the manufacturing process for the compressor housing for illustrating in embodiment 1, booster
Sectional view.
Fig. 8 be embodiment 1 in, the sectional view of the compressor housing of booster after the formation process of shield face.
Fig. 9 be variation in, the sectional view of unitary blank.
Embodiment
The compressor housing of the booster of the present invention can be used for the boosters such as the turbocharger of automobile.
In the compressor housing of above-mentioned booster, above-mentioned round part with above-mentioned housing body preferably by forming material
Material identical material is made.Thus, both linear expansion coefficients turn into equal, occur thermal expansion thermal contraction even in both,
Also the decline of the crimp force at the pressure contact portion of the radial outer side of round part and the recess electrolysis of inner circumferential recess can be prevented.
Thereby, it is possible to fully maintain round part relative to the press-in state of the inner circumferential recess of housing body.As a result, even if occurring temperature
Change, the decline for the confining force to slide unit that can be also substantially prevented from the inner circumferential recess of housing body.
In the compressor housing of above-mentioned booster, above-mentioned flange part can be set to, and be formed at above-mentioned slide unit
Complete cycle.In this case, slide unit, the flange part set by the complete cycle throughout slide unit by round part press-in
The recess opposite face of direction leading flank and the inner circumferential recess in housing body is clamped, so as to be fixed, therefore, it is possible to substantially ensure that
To the confining force of slide unit.
In the compressor housing of above-mentioned booster, it is preferred that the 1st end tool of above-mentioned slide unit in the axial direction
There is above-mentioned flange part, the 2nd end of the side opposite with the 1st end is relative with neutralizing the 2nd end in above-mentioned inner circumferential recess
The separation of end opposite face.Using the 2nd end as front side and using be formed with the 1st end of flange part as rear, by sliding part
When part is inserted into inner circumferential recess from the 2nd end, if the 2nd end of slide unit and the end opposite face of inner circumferential recess connect
Touch, then the expansion of slide unit to the 2nd end side is restricted, and the expansion quantitative change to the 1st end side is big.As a result, diffusion paths
It can narrow.However, in the above-described configuration, flange part to be disposed in proximity to the 1st end of diffusion paths, and make the 2nd end with
The end opposite face separation of inner circumferential recess.Thereby, it is possible to allow that slide unit, to the expansion of the 2nd end side, can reduce slip
Swell increment from part to the 1st end side.Narrow as a result, it is possible to suppress diffusion paths.
In the compressor housing of above-mentioned booster, it is preferred that the outer peripheral face of above-mentioned slide unit and above-mentioned inner circumferential
The outer peripheral face separation of recess.In this case, it is formed with spatial portion between slide unit and inner circumferential recess.Also, sliding
In the case of part swelling, the periphery of slide unit is towards expanding in the spatial portion.It is swollen in slide unit thereby, it is possible to prevent
Slide unit undergauge in the case of having moistened.As a result, without consider slide unit the undergauge caused by swelling in advance increase slide
Top clearance (English between dynamic component and impeller：Tip clearance), can be from being initially reduced by the top clearance.Separately
Outside, can when the slide unit for being mounted with round part is assembled in into housing body, with the outer peripheral face of slide unit not with it is interior
The mode of the outer peripheral face contact of all recesses inserts slide unit to inner circumferential recess, therefore assembling operation is improved.
In the manufacture method of the compressor housing of above-mentioned booster, it can be set to, in above-mentioned unitary blank formation work
In sequence, above-mentioned round blank along in above-mentioned shell blank with being pressed into the position corresponding of above-mentioned round part, with
Above-mentioned shell blank is integrally formed.Thus, without preparing respectively for the mold of Shaped shell blank and for shaping round
The mold of blank, as long as preparing the mold of both unitary blanks of shaping.Therefore, it is possible to cut down mould expense.In addition, with distinguishing
Both compare for casting, and the mode of integrally casting can also cut down casting expense.Thereby, it is possible to reduce manufacturing cost.
In the manufacture method of the compressor housing of above-mentioned booster, it can be set to, in above-mentioned unitary blank formation work
In sequence, above-mentioned round blank is along the opposite side in the side for being formed in above-mentioned shell blank with being pressed into above-mentioned round part
Air inlet end, be integrally formed with above-mentioned shell blank.In this case, mould can be also cut down as described above
Take, cast expense, so manufacturing cost can be reduced.
Embodiment
(embodiment 1)
The compressor housing of the booster of this example is illustrated using Fig. 1~Fig. 9.
As shown in figure 1, the compressor housing 1 (hereinafter also referred to " compressor housing 1 ") of the booster of this example possesses shell
Phosphor bodies 20, slide unit 30 and round part 40.
Housing body 20 is configured to accommodate impeller 10, and in inner circumferential annular in shape the periphery 10a along impeller 10
Face is formed with concave inner circumferential recess 21.
Slide unit 30 is formed as ring-type and is disposed in inner circumferential recess 21, and inner circumferential surface formation is relative with impeller 10
Shield face 31.
Inner circumferential recess 21 of the round part 40 along housing body 20 is formed as round, and along the axial X of impeller 10
It is pressed into inner circumferential recess 21.
Moreover, as shown in Fig. 2 inner circumferential recess 21 has：Recess electrolysis 212, its press-in side along round part 40
To (i.e. axial direction X) and it is crimped on the radial outer side 42 of round part 40；With recess opposite face 213, itself and round part
40 pressing direction leading flank 41 is relative.
Also, slide unit 30 has the flange part 32 prominent to the radial outside of slide unit 30, passes through round part
40 are pressed into inner circumferential recess 21, and flange part 32 is thus hold between pressing direction leading flank 41 and recess opposite face 213.
As shown in figure 1, compressor used in the turbocharger (booster) of the formation automobile of compressor housing 1 is outer
Shell.
Hereinafter, the compressor housing 1 of this example is described in detail.
Housing body 20 is made up of the gravity casting of aluminum, as shown in Figure 1 and Figure 2, possesses air inlet 11, intake channel 12
And volute room 13.
Air inlet 11 and intake channel 12 are formed by tubular cylindrical portion 23.Volute room 13 is configured to, in impeller 10
Outer circumferential side is formed in the circumferential, and imports the air discharged from impeller 10.
Inner circumferential recess 21 is formed as periphery of the inner peripheral surface along slide unit 30 in housing body 20.Also, inner circumferential is recessed
Portion 21 has：The 1st cylindric recess 210, it is along the cylindric slide unit main part in slide unit 30 described later
310 are formed as concavity；With cylindric second recesses 220, it is along the wide diameter portion 311 in slide unit 30, from the 1st recess 210
Further be formed as concavity.Thus, inner circumferential recess 21 is configured to arrange slide unit 30.The 2nd of inner circumferential recess 21 the
Recess 220 has：Recess electrolysis 212, its pressing direction X along round part 40 described later and is crimped on round portion
The radial outer side 42 of part 40；With recess opposite face 213, its with the face on front side of the formation pressing direction X in round part 40
(pressing direction leading flank) 41 relative mode diametrically extends.
Slide unit 30 is formed by the part for being capable of elastic deformation.In this example, slide unit 30 is polyimide resin
System.As the formation material of slide unit 30, not limited to this can be set using teflon (registration mark), PPS (polyphenylene sulfide)
Fat, PEEK (polyether-ether-ketone) resin etc..As shown in figure 3, slide unit 30 is annular in shape, whole region and the impeller 10 of inner circumferential surface
(Fig. 1) is relative and forms shield face 31.Moreover, slide unit 30 possesses：The slide unit main part 310 of tubular；And wide diameter portion
311, its side (that is, described later direction of insertion rear end side) opposite with air inlet 11 in slide unit main part 310 to
Radial outside is expanding and is formed.Wide diameter portion 311 is formed at the complete cycle direction of slide unit 30.In wide diameter portion 311, provided with further
The flange part 32 prominent to radial outside.In this example, flange part 32 is formed at the complete cycle of wide diameter portion 311.Institute as shown in Figure 1, Figure 2
Show, the 1st recess 210, the wide diameter portion 311 that slide unit 30 is located at slide unit main part 310 in inner circumferential recess 21 are located at the 2nd
The mode of recess 220, is disposed in inner circumferential recess 21.
As shown in figure 3, recess electrolysis 212 of the round part 40 along inner circumferential recess 21 is formed as round, as shown in Figure 1, Figure 2
Shown, its cross sectional shape is in the form of a substantially rectangular.Also, the radial outer side 42 relative with recess electrolysis 212 is along round part
40 pressing direction X is formed throughout the periphery whole region of round part 40.Also, the external diameter of round part 40 is more recessed than inner circumferential
The internal diameter of second recesses 220 in portion 21 is larger, and round part 40 is pressed into second recesses 220, thus radial outer side 42
It is crimped on recess electrolysis 212.On the other hand, the radial direction positioned at the side opposite with radial outer side 42 of round part 40
Medial surface 43, abuts with the outer peripheral face 313 of the wide diameter portion 311 of slide unit 30 and is crimped on the wide diameter portion of slide unit 30
311 outer peripheral face 313.
As shown in Fig. 2 in the state of round part 40 is pressed into second recesses 220, the pressing direction of round part 40
Leading flank 41 is relative with recess opposite face 213.Also, slip is hold by pressing direction leading flank 41 and recess opposite face 213
The flange part 32 of part 30.In addition, as shown in Fig. 2 flange part 32 is prominent from wide diameter portion 311 to radial outside, but in flange part
The outer peripheral face relative with recess electrolysis 212 is that flange part outer peripheral face 32a is not contacted with recess electrolysis 212 in 32.Thus, shape
Into have by pressing direction leading flank 41, recess opposite face 213 and flange part outer peripheral face 32a surround spatial portion 50.In addition,
In 1st recess 210, the external diameter of slide unit main part 310 is smaller than the internal diameter of the 1st recess 210, therefore slide unit main part
310 outer peripheral face 310a is separated with the outer peripheral face 210a of the 1st recess 210.Thus, in the outer peripheral face of slide unit main part 310
Spatial portion 51 is formed between the outer peripheral face 210a of 310a and the 1st recess 210.Moreover, as shown in figure 1, slide unit 30 is in axle
Flange part 32 is formed with to X the 1st end 34.Also, the 2nd end 35 of the side opposite with the 1st end 34 with it is recessed in inner circumferential
Portion 21 neutralizes the relative end opposite face 210b separation in the 2nd end 35.Thus, the 2nd end 35 and end opposite face 210b it
Between be formed with spatial portion 52.
In addition, as shown in figure 1, bear box or the backboard (English of impeller 10：Back plate) end face 70 be located at shell
The side opposite with air inlet 11 in phosphor bodies 20, between the end face 70 and housing body 20, being formed with turns into from impeller
The diffusion part 14 of the connected fluid passage in 10 lateral volute rooms 12.In housing body 20, the face relative with end face 70, which turns into, to be expanded
Dissipate face 24.
In addition, as shown in figure 1, impeller 10 is configured at the inner peripheral surface (shield face 31) of the slide unit 30 of housing body 20
Side, is mounted to rotate centered on rotary shaft 15.In addition, impeller 10 possess wheel hub 16 and arrange in the circumferential from this
Multiple blades 17 that the outer peripheral face of wheel hub 16 is protruded.Multiple blades 17 are configured to relative with the shield face 31 of slide unit 30.
In the compressor of the compressor housing 1 for the booster for possessing this example, as shown in figure 1, passing through the rotation of impeller 10
Then the supply sucked from air inlet 11 by intake channel 12, accelerated by the blade 17 of impeller 10 and be sent to diffusion part
14.Also, the supply is boosted in diffusion part 14, and it is admitted to volute room 13.
Then, the manufacture method to the compressor housing 1 of this example is illustrated.
When manufacturing compressor housing 1, first, as shown in figure 4, being formed the housing base of the blank as housing body 20
(the unitary blank shape of unitary blank 60 that the round blank 40a of material 20a and the blank as round part 40 is integrally formed
Into process S1).
In this example, in unitary blank formation process S1, unitary blank 60 is formed by gravitation casting method by aluminium alloy.
As shown in figure 4, in unitary blank 60, forming air inlet 11, intake channel 12, and be pressed into along in shell blank 20a
The position 40b (second recesses 220 in Fig. 2) of round part 40, in the side opposite with air inlet 11 to swell the side for round
Formula forms round blank 40a.Moreover, in unitary blank 60, volute room 13 is formd using core.
Then, unitary blank 60 (Fig. 4) is processed and split, as shown in figure 5, forming housing body unit 20 and round
Part 40 (blank processes segmentation process S2).That is, in blank processing segmentation process S2, in the unitary blank 60 shown in Fig. 4
Under state, the inner peripheral portion 20b of pair part suitable with shell blank 20a is cut and formed with the 1st recess 210 and the 2nd
The inner circumferential recess 21 (Fig. 5) of recess 220, so as to shape the part suitable with housing body unit 20, and pair with round blank portion
Part suitable 40a is ground and shapes the part suitable with round part 40.Afterwards, from the unitary blank of the completion of processing
60 are divided into housing body unit 20 and round part 40 and are made respectively.
Then, as shown in fig. 6, after round part 40 is pressed into and is assembled in preprepared slide unit 30,
The assembly is pressed into (press-fitting step S3) to the inner circumferential recess 21 of housing body 20.As shown in fig. 7, by inner circumferential recess 21
In the press-in of second recesses 220 round part 40, thus by the pressing direction leading flank 41 and inner circumferential recess 21 of round part 40
Recess opposite face 213 has clamped flange part 32.The external diameter of the radial outer side 42 of round part 40 is formed as than second recesses 220
In recess electrolysis 212 internal diameter it is larger, in press-fitting step S3, by the way that round part 40 is pressed into second recesses
220, the radial outer side 42 of round part 40 is crimped on recess electrolysis 212 in second recesses 220.In addition, round
The radially inner side face 43 of part 40 abuts with the outer peripheral face 313 of the wide diameter portion 311 of slide unit 30 and is crimped on slide unit
The outer peripheral face 313 of 30 wide diameter portion 311.
Afterwards, by the inner peripheral portion 30b (Fig. 7) of slide unit 30 together with round part 40 and the inner peripheral surface of housing body 20
Cutting, as shown in figure 8, forming shield face 31 (shield face formation process S4).Thus, form and lead to from air inlet 11 by air inlet
Road 12 and shield face 31 untill diffusingsurface 24 without ladder (Japanese：Segment difference) continuous face.So, compressor is completed
Housing 1.
Then, the action effect of the compressor housing 1 of the booster of this example is described in detail.
According to the compressor housing 1 of the booster of this example, slide unit 30 is fixed via its flange part 32, therefore
The screwed part for fixing slide unit 30 need not be used for.Therefore, it is not required that in order that screwed part a part not from
Diffusingsurface 24 to fluid passage it is prominent and set conventional housing recess.Thereby, it is possible in the shield face 31 of slide unit 30
In, do not upset by the air discharged from impeller 10 fluidly, prevent the decline of compression efficiency.
In addition, the inner circumferential recess 21 by the way that round part 40 to be pressed into housing body 20, thus slide unit 30 is convex
Edge 32 is clamped by the pressing direction leading flank 41 of round part 40 with the recess opposite face 213 of inner circumferential recess 21.Thus, slide
Part 30 is fixed in the inner circumferential recess 21 of housing body 20.
In addition, without setting conventional housing recess in diffusingsurface 24, therefore will not have water etc. in the product of diffusingsurface 24, do not have yet
There is the sorrow of corrosion.Furthermore, it is not necessary that the process of conventional housing recess is filled with putty etc., therefore material cost will not increase.
In addition, it is not necessary that in order to ensure screwed part to be fixed on to the region of slide unit 30, and slide unit 30 is extended to as
The diffusingsurface 24 in the region relative with impeller 10, not favourable in terms of cost therefore, it is possible to minimize slide unit 30.
Moreover, round part 40 is made up of the material identical material that formed with housing body 20.Thus, both lines are swollen
Swollen coefficient turns into equal, occurs thermal expansion thermal contraction even in both, can also prevent the radial outer side of round part 40
42 with the decline of the crimp force at the pressure contact portion of the recess electrolysis 212 of inner circumferential recess 21.Thereby, it is possible to fully maintain round portion
Press-in state of the part 40 relative to the inner circumferential recess 21 of housing body 20.As a result, even if occurring temperature change, it can also be substantially prevented from
The decline of the confining force to slide unit 30 at the inner circumferential recess 21 of housing body 20.
In addition, flange part 32 is formed at the complete cycle of slide unit 30.Thus, slide unit 30, by throughout slide unit
The flange part 32 set relative with the recess of inner circumferential recess 21 by the pressing direction leading flank 41 of round part 40 30 complete cycle
Face 213 is clamped, so as to be fixed, therefore, it is possible to substantially ensure that the confining force to slide unit 30.
In addition, recess electrolysis 212 of the round part 40 along the second recesses 220 in inner circumferential recess 21 is formed, round portion
The radial outer side 42 of part 40 is formed at the complete cycle of round part 40.Thereby, it is possible to largo ensure recess electrolysis 212 and footpath
The pressure contact portion of outside side 42, therefore, it is possible to which round part 40 effectively is fixed on into housing body 20.
, can be with addition, in this example, on round part 40, its cross sectional shape is set to substantially rectangular, but not limited to this
Consider round part 40 formability, to the easiness of press-in of inner circumferential recess 21, necessary confining force to slide unit 30,
Manufacturing cost etc. and suitably determine its cross sectional shape.
In addition, in this example, the complete cycle that flange part 32 is formed as in slide unit 30 is prominent to radial outside, but is not limited to
This, can also be arranged at a part for the periphery of slide unit 30.For example, it may be considered that the formability of slide unit 30, manufacture
It is cost, necessary to confining force of slide unit 30 etc., and suitably determine to form flange part in the periphery of slide unit 30
32 position.
In addition, in this example, 1st end 34 of the slide unit 30 on axial X has flange part 32, with the 1st end
2nd end 35 of 34 opposite sides is separated with neutralizing the relative end opposite face 210b in the 2nd end 35 in inner circumferential recess 21.By
This, slide unit 30, with the 2nd end 35 be front side and with the 1st end 34 for being formed with flange part 32 be rear, from the 2nd
When end 35 is inserted into inner circumferential recess 21, if the 2nd end 35 and the end opposite face of inner circumferential recess 21 of slide unit 30
210b is contacted, then the expansion of slide unit 30 to the side of the 2nd end 35 is restricted.As a result, diffusion paths 14 can narrow.However,
In this example, flange part 32 is disposed in proximity to the 1st end 34 of diffusion paths 14, and makes the 2nd end 35 and inner circumferential recess
21 end opposite face 210b separation.Thereby, it is possible to allow expansion of the slide unit 30 to the side of the 2nd end 35, cunning can be reduced
Swell increment from dynamic component 30 to the side of the 1st end 34.Narrow as a result, it is possible to suppress diffusion paths 14.
In addition, in this example, the outer peripheral face 310a of slide unit 30 is separated with the outer peripheral face 210a of inner circumferential recess 21.By
This, is formed with spatial portion 51 between slide unit 30 and inner circumferential recess 21.Also, the situation in the swelling of slide unit 30
Under, the outer peripheral face 310a of slide unit 30 expands into spatial portion 51.Thereby, it is possible to the feelings prevented in the swelling of slide unit 30
The undergauge of condition downslide dynamic component 30.As a result, without consider slide unit 30 the undergauge caused by swelling in advance increase sliding part
Top clearance between part 30 and impeller 10, can be from being initially reduced by the top clearance.In addition, round can will be mounted with
When the slide unit 30 of part 40 is assembled in housing body 20, with the outer peripheral face 310a of slide unit 30 not with inner circumferential recess 21
The mode of outer peripheral face 210a contacts inserts slide unit 30 to inner circumferential recess 21, therefore assembling operation is improved.
In addition, according to the manufacture method of the compressor housing 1 of the booster of this example, can manufacture and function as described above effect
The compressor housing 1 of the booster of fruit.Moreover, in unitary blank formation process S1, being formed as housing body 20
The unitary blank that the round blank 40a of the shell blank 20a of blank and the blank as round part 40 is integrally formed
60, in blank processing segmentation process S2, after being processed to unitary blank 60, it is divided into the He of housing body 20
Round part 40 and formed both.That is, in the process being processed to housing body 20 (blank processes segmentation process S2), enter
The processing and segmentation of round part 40 are gone.Thus, with making two blanks 20a, 40b and situation about being each processed respectively
Compared to manufacturing process can be simplified.
In addition, housing body 20 and round part 40 are from the shell blank 20a and round base cut out from unitary blank 60
Material 40a is formed respectively, therefore housing body 20 and round part 40 form material by identical and be made.Therefore, both line heat
The coefficient of expansion is equal, even if therefore occur thermal expansion thermal contraction at both because of temperature change, can also prevent round part
40 radial outer side 42 and the decline of the crimp force at the pressure contact portion of the recess electrolysis 212 of inner circumferential recess 21.Thereby, it is possible to
Round part 40 is maintained relative to the press-in state of the inner circumferential recess 21 of housing body 20.As a result, even if occurring temperature change,
The decline of the confining force to slide unit 30 at the inner circumferential recess 21 of housing body 20 can be prevented.
Moreover, in the manufacture method of the compressor housing 1 of booster, in unitary blank formation process S1, round
Blank 40a is integral along the position corresponding and shell blank 20a with press-in round part 40 in shell blank 20a
Ground is formed.Thus, the mold without preparing respectively for Shaped shell blank 20a mold and for shaping round blank 40a,
As long as preparing the mold of both unitary blanks 60 of shaping.Therefore, it is possible to cut down mould expense.In addition, with casting both respectively
Compare, the mode of integrally casting can also cut down casting expense.Thereby, it is possible to reduce manufacturing cost.
In addition, in this example, in unitary blank formation process S1, round blank 40a is pressed along in shell blank 20a
The position 40b for entering round part 40 is formed at the side opposite with air inlet 11, but it is also possible to as described below.That is, such as Fig. 9 institutes
Show or, in unitary blank formation process S1, by round blank 40a with shell blank 20a along air inlet 11
Mode from end 11a to the opposite side protuberance in the side with being pressed into round part 40, with the integral landform of shell blank 20a
Into.In this case, also as described above, as long as preparing to form the mold of both unitary blanks, therefore, it is possible to cut
Subtract mould expense, casting expense, so this action effect of manufacturing cost can be reduced by playing.
In this example, in unitary blank formation process S1, unitary blank 60 is formd by gravitation casting method, but do not limit
In this, it can also be formed by casting die and/or other known methods.In the case of using casting die, by the one
Blank 60 is suitably divided into some (English：Pieces it is) (English not occur Transitional cut to be formed：under
cut)。
As described above, according to this example, using the teaching of the invention it is possible to provide the decline of compression efficiency can be prevented and be able to maintain that to slide unit
30 confining force, the compressor housing 1 of booster favourable in terms of cost and its manufacture method.
Claims (8)
1. a kind of compressor housing of booster, it is characterised in that
Possess：
Housing body, impeller can be accommodated by consisting of, and the inner peripheral surface annular in shape in the periphery along the impeller is formed with
Concave inner circumferential recess；
The slide unit of ring-type, it is disposed in above-mentioned inner circumferential recess, and the inner circumferential surface formation shield relative with above-mentioned impeller
Face；And
Round part, it is formed as round along above-mentioned inner circumferential recess, and is pressed into along the axial direction of above-mentioned impeller above-mentioned
Inner circumferential recess,
Above-mentioned inner circumferential recess has：Recess electrolysis, its pressing direction along above-mentioned round part and is crimped on above-mentioned
The radial outer side of round part；With recess opposite face, it is relative with the pressing direction leading flank of above-mentioned round part,
Above-mentioned slide unit has the flange part prominent to the radial outside of the slide unit,
Above-mentioned inner circumferential recess is pressed into by above-mentioned round part, thus in above-mentioned pressing direction leading flank and above-mentioned recess phase
Above-mentioned flange part is hold between opposite.
2. the compressor housing of booster according to claim 1, it is characterised in that
Above-mentioned round part is made up of the material identical material that formed with above-mentioned housing body.
3. the compressor housing of booster according to claim 1 or 2, it is characterised in that
Above-mentioned flange part is formed at the complete cycle of above-mentioned slide unit.
4. according to the compressor housing of booster according to any one of claims 1 to 3, it is characterised in that
The 1st end of above-mentioned slide unit in the axial direction has above-mentioned flange part, the 2nd end of the side opposite with the 1st end
Portion is separated with neutralizing the relative end opposite face in the 2nd end in above-mentioned inner circumferential recess.
5. according to the compressor housing of booster according to any one of claims 1 to 4, it is characterised in that
The outer peripheral face of above-mentioned slide unit is separated with the outer peripheral face of above-mentioned inner circumferential recess.
6. a kind of manufacture method of the compressor housing of booster, is the compression of the booster described in manufacturing claims 1
The method of casing body, it is characterised in that
Including：
Unitary blank formation process, it is formed by the shell blank of the blank as above-mentioned housing body and as above-mentioned round portion
The unitary blank that the round blank of the blank of part is integrally formed；With
Blank processes segmentation process, and it is processed to above-mentioned unitary blank and splits and form above-mentioned housing body unit and above-mentioned
Round part.
7. the manufacture method of the compressor housing of booster according to claim 6, it is characterised in that
In above-mentioned unitary blank formation process, above-mentioned round blank in above-mentioned shell blank along being pressed into above-mentioned round part
Position, be integrally formed with above-mentioned shell blank.
8. the manufacture method of the compressor housing of booster according to claim 6, it is characterised in that
In above-mentioned unitary blank formation process, above-mentioned round blank is above-mentioned with press-in along being formed in above-mentioned shell blank
The end of the air inlet of the opposite side in the side of round part, is integrally formed with above-mentioned shell blank.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-034671 | 2015-02-25 | ||
| JP2015034671 | 2015-02-25 | ||
| PCT/JP2016/055111 WO2016136681A1 (en) | 2015-02-25 | 2016-02-22 | Compressor housing for supercharger and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107208657A true CN107208657A (en) | 2017-09-26 |
Family
ID=56788552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680010144.2A Pending CN107208657A (en) | 2015-02-25 | 2016-02-22 | The compressor housing and its manufacture method of booster |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20170350408A1 (en) |
| EP (1) | EP3263911A4 (en) |
| JP (1) | JPWO2016136681A1 (en) |
| CN (1) | CN107208657A (en) |
| WO (1) | WO2016136681A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10683870B2 (en) * | 2015-03-24 | 2020-06-16 | Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | Impeller cover, rotary machine, and impeller cover manufacturing method |
| JP6589217B2 (en) * | 2015-04-17 | 2019-10-16 | 三菱重工コンプレッサ株式会社 | Rotating machine, method of manufacturing rotating machine |
| DE102017127628A1 (en) * | 2017-11-22 | 2019-05-23 | Man Energy Solutions Se | Turbine and turbocharger |
| WO2020001752A1 (en) | 2018-06-26 | 2020-01-02 | Volvo Truck Corporation | A compressor device for an internal combustion engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5785493A (en) * | 1995-12-20 | 1998-07-28 | Hitachi, Ltd. And Hitachi Car Engineering Co., Ltd. | Turbocharger for internal combustion engine |
| JP3858347B2 (en) * | 1997-05-30 | 2006-12-13 | 石川島播磨重工業株式会社 | Turbocharger |
| JP2011052558A (en) * | 2009-08-31 | 2011-03-17 | Toyota Motor Corp | Supercharger |
| JP2011153570A (en) * | 2010-01-27 | 2011-08-11 | Toyota Motor Corp | Abradable seal fixing structure of supercharger |
| JP2013170545A (en) * | 2012-02-22 | 2013-09-02 | Toyota Motor Corp | Method of fabricating exhaust turbine supercharger, and exhaust turbine supercharger |
| CN103748335A (en) * | 2011-07-25 | 2014-04-23 | 丰田自动车株式会社 | Compressor housing and exhaust turbine supercharger |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998048157A1 (en) * | 1997-04-22 | 1998-10-29 | Kyoritsu Corp. | Turbo charger equipped with sliding member |
| JP5471650B2 (en) * | 2009-11-05 | 2014-04-16 | トヨタ自動車株式会社 | Turbocharger compressor housing |
| JP5402682B2 (en) * | 2010-01-29 | 2014-01-29 | 株式会社Ｉｈｉ | Turbocharger sealing device |
| JP2013124564A (en) * | 2011-12-13 | 2013-06-24 | Otics Corp | Compressor housing for supercharger |
| JP2014088785A (en) * | 2012-10-29 | 2014-05-15 | Otics Corp | Compressor housing for supercharger |
-
2016
- 2016-02-22 US US15/542,729 patent/US20170350408A1/en not_active Abandoned
- 2016-02-22 JP JP2017502358A patent/JPWO2016136681A1/en active Pending
- 2016-02-22 CN CN201680010144.2A patent/CN107208657A/en active Pending
- 2016-02-22 EP EP16755427.8A patent/EP3263911A4/en not_active Withdrawn
- 2016-02-22 WO PCT/JP2016/055111 patent/WO2016136681A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5785493A (en) * | 1995-12-20 | 1998-07-28 | Hitachi, Ltd. And Hitachi Car Engineering Co., Ltd. | Turbocharger for internal combustion engine |
| JP3858347B2 (en) * | 1997-05-30 | 2006-12-13 | 石川島播磨重工業株式会社 | Turbocharger |
| JP2011052558A (en) * | 2009-08-31 | 2011-03-17 | Toyota Motor Corp | Supercharger |
| JP2011153570A (en) * | 2010-01-27 | 2011-08-11 | Toyota Motor Corp | Abradable seal fixing structure of supercharger |
| CN103748335A (en) * | 2011-07-25 | 2014-04-23 | 丰田自动车株式会社 | Compressor housing and exhaust turbine supercharger |
| JP2013170545A (en) * | 2012-02-22 | 2013-09-02 | Toyota Motor Corp | Method of fabricating exhaust turbine supercharger, and exhaust turbine supercharger |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2016136681A1 (en) | 2017-11-30 |
| EP3263911A4 (en) | 2018-02-21 |
| US20170350408A1 (en) | 2017-12-07 |
| EP3263911A1 (en) | 2018-01-03 |
| WO2016136681A1 (en) | 2016-09-01 |
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Application publication date: 20170926 |