JPH0791399A - Turbine housing for turbocharger - Google Patents
Turbine housing for turbochargerInfo
- Publication number
- JPH0791399A JPH0791399A JP25653893A JP25653893A JPH0791399A JP H0791399 A JPH0791399 A JP H0791399A JP 25653893 A JP25653893 A JP 25653893A JP 25653893 A JP25653893 A JP 25653893A JP H0791399 A JPH0791399 A JP H0791399A
- Authority
- JP
- Japan
- Prior art keywords
- turbine
- partition wall
- turbine housing
- exhaust gas
- flange
- 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.)
- Granted
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はターボチャージャの排気
ガス流路が仕切壁により分割されているターボチャージ
ャ用タービンハウジングに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turbocharger turbine housing in which an exhaust gas passage of a turbocharger is divided by a partition wall.
【０００２】[0002]
【従来の技術】図５及び図６は従来の一般的な分割型タ
ービンハウジングを示す。タービンハウジング本体２０
は軸方向に左右に分割されており、別部材の仕切壁２４
を分割タービンハウジング２１，２２の左右対面部の嵌
合溝２３にて挟持させ、外周部２５を溶接又はボルト等
にて固定して、二分割された排気ガス流路２１ａ，２２
ａを構成することが行なわれている。5 and 6 show a conventional general split type turbine housing. Turbine housing body 20
Is divided into left and right in the axial direction, and the partition wall 24 is a separate member.
Between the split turbine housings 21 and 22, and the outer peripheral portion 25 is fixed by welding or bolts, so that the exhaust gas passages 21a and 22 are divided into two.
a is being constructed.
【０００３】[0003]
【発明が解決しようとする課題】従来の仕切壁別体型の
タービンハウジングは、タービンハウジング本体２０の
全体を軸方向にて左右の二つの部品に分割している。従
って分割タービンハウジング２１，２２の左右対面部に
て仕切壁２４を挟持するためには、左右対面部の内側に
沿って複雑な形状の嵌合溝２３を設けて保持する必要が
ある。同様に仕切壁２４の外周形状２４ａも嵌合溝２３
と同じ複雑な形状とならざるを得ず各部品毎に高い寸法
精度が要求される。このため部品の製作において精密鋳
造を採用する等かなり高価となる点に問題があった。In a conventional turbine housing of a separate partition wall type, the entire turbine housing main body 20 is divided into two parts, left and right, in the axial direction. Therefore, in order to sandwich the partition wall 24 between the left and right facing portions of the divided turbine housings 21 and 22, it is necessary to provide and hold the fitting groove 23 having a complicated shape along the inside of the left and right facing portions. Similarly, the outer peripheral shape 24 a of the partition wall 24 also has a fitting groove 23.
Inevitably, it will have the same complicated shape as above, and high dimensional accuracy is required for each part. For this reason, there is a problem that the cost is considerably high due to the use of precision casting in the manufacture of parts.
【０００４】また嵌合溝２３は、その周方向の形状から
タービンホイール１４の回転軸の軸線１６に対して同心
とはならず、また仕切壁２４を保持するため嵌合部に広
めの隙間Ｂを設ける必要があるので、仕切壁２４に位置
ずれが生じるおそれがある。このためタービンホイール
１４近傍の排気ガス流入スロート部１５の寸法Ａがばら
つき排気ガスの流れに乱れが生じてタービン性能を低下
させる問題を有していた。Further, the fitting groove 23 is not concentric with the axis 16 of the rotating shaft of the turbine wheel 14 due to its circumferential shape, and a wide gap B is provided in the fitting portion for holding the partition wall 24. Since it is necessary to provide the partition wall, the partition wall 24 may be displaced. For this reason, the dimension A of the exhaust gas inflow throat portion 15 near the turbine wheel 14 varies, and there is a problem that the flow of exhaust gas is disturbed and the turbine performance is degraded.
【０００５】本発明の目的はタービンハウジング本体の
分割を部分的に行なうことによって別体型の仕切壁を簡
単な円板状とし組立も容易で安価に製作できるととも
に、タービン性能の向上が得られるターボチャージャ用
タービンハウジングを提供するにある。The object of the present invention is to make a separate partition wall into a simple disk shape by partially dividing the main body of the turbine housing, to assemble it easily and at a low cost, and to improve the turbine performance. To provide a turbine housing for a charger.
【０００６】[0006]
【課題を解決するための手段】本発明のターボチャージ
ャ用タービンハウジングはタービンハウジングを排気ガ
ス流路内部を二分割する仕切壁１１を設けたターボチャ
ージャにおいて、排気ガス入口通路二箇所１０ａ，１０
ｂを有するとともに、その一箇所１０ｂと環状的に連続
する第１の排気ガス流路１０ｃを一体に備え、かつター
ビンホイール１４の回転軸の軸線１６を中心として製作
される真円のインロー部１０ｄ，１０ｅを内部に有する
タービンハウジング１０と、前記タービンホイール１４
の回転軸の軸線１６を中心として設けられる同心円形状
の別体型仕切壁１１と、環状的に連続する第２の排気ガ
ス流路１２ａを備えかつ前記タービンオイール１４の回
転軸の軸線１６と同軸でタービンハウジング１０のイン
ロー部１０ｄと嵌合する真円のインロー部１２ｂを外周
部に有するフランジ１２とを有してなることを特徴とし
ている。The turbine housing for a turbocharger of the present invention is a turbocharger provided with a partition wall 11 that divides the turbine housing into two parts in the exhaust gas flow passage.
a perfect circular spigot portion 10d that is integrally provided with a first exhaust gas flow passage 10c that has a point 10b and is annularly continuous with the point 10b, and that is manufactured around the axis 16 of the rotating shaft of the turbine wheel 14. , 10e therein, and the turbine wheel 14
Of the rotary shaft of the turbine oil 14 coaxially with the separate partition wall 11 having a concentric circular shape provided around the axis 16 of the rotating shaft of the turbine and the second exhaust gas flow passage 12a continuous in an annular shape. It is characterized in that it has a flange 12 having a perfect circular inlay portion 12b that fits with the inlay portion 10d of the turbine housing 10.
【０００７】[0007]
【作用】該ターボチャージャ用のタービンハウジングは
タービンハウジング本体１０の一部分のみを分割して、
その部分に仕切壁１１と排気ガス流路を備えたフランジ
１２を組み込むような前記構造としたのがその要点であ
る。従ってタービンハウジング本体１０に嵌入されるフ
ランジ用インロー部１０ｄ及び仕切壁用のインロー部１
０ｅの形状がタービンホイール１４の回転軸の軸線１６
を中心とした真円に形成可能となり、同時に仕切壁１１
の形状も簡単な円板状にできるため、大幅に安価に製作
できるようになる。その結果、タービンホイール近傍の
製作精度が向上し、排気ガス流入スロート部１５の寸法
Ａが均一となり、排気ガスの流れが整流されてタービン
性能の向上が期待できる。In the turbine housing for the turbocharger, only a part of the turbine housing body 10 is divided,
The point is that the structure is such that the partition wall 11 and the flange 12 having the exhaust gas flow path are incorporated in that portion. Therefore, the flange inlay portion 10d fitted in the turbine housing body 10 and the partition wall inlay portion 1
The shape of 0e is the axis 16 of the rotating shaft of the turbine wheel 14.
It becomes possible to form a perfect circle centered on
Since the shape of can be a simple disk shape, it can be manufactured at a significantly low cost. As a result, the manufacturing accuracy in the vicinity of the turbine wheel is improved, the dimension A of the exhaust gas inflow throat portion 15 is made uniform, the flow of exhaust gas is rectified, and improvement of turbine performance can be expected.
【０００８】[0008]
【実施例】以下図面に基づき本発明の実施例を説明す
る。図１は本発明の実施例を示すものである。タービン
ハウジング本体１０は排気ガス入口通路１０ａ，１０ｂ
及び１０ｂと環状的に連続する第１の排気ガス流路１０
ｃを一体化としている。またタービンハウジング本体に
は図２に示すように仕切壁１１とフランジ１２を組み込
むための真円のインロー部１０ｄ，１０ｅを内面に有し
ている。仕切壁１１は図３に示すように内周部１１ａと
外周部１１ｂを同心とした円板状の形状である。図４に
フランジ１２の形状を示す。フランジ１２は環状的に連
続する第２の排気ガス流路１２ａを有しており、かつ外
周部には真円のインロー部１２ｂが設けられている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of the present invention. The turbine housing body 10 includes exhaust gas inlet passages 10a and 10b.
And the first exhaust gas flow path 10 annularly continuous with 10b
c is integrated. As shown in FIG. 2, the turbine housing body has perfect circular spigot parts 10d and 10e for assembling the partition wall 11 and the flange 12 on its inner surface. As shown in FIG. 3, the partition wall 11 has a disc shape with the inner peripheral portion 11a and the outer peripheral portion 11b being concentric. FIG. 4 shows the shape of the flange 12. The flange 12 has a second exhaust gas flow path 12a that is annularly continuous, and a perfect circular spigot portion 12b is provided on the outer peripheral portion.
【０００９】次に前記実施例の作用について説明する。
本実施例の要点はタービンハウジングの一部分のみを分
割して、その部分にフランジ１２及び仕切壁１１をイン
ロー部を介して組み込むようにしたものである。従って
タービンハウジング本体１０に形成されるフランジ１２
用及び仕切壁１１用の嵌合インロー部１０ｄ，１０ｅの
形状がタービンホイール１４の回転軸の軸線１６を中心
とした真円とすることが可能となり、同時に仕切壁１１
の形状も簡単な円板状にできるため、製産コストが低下
する。さらにその結果タービンホイール近傍の製作精度
が向上し、排気ガス流入スロート部１５の寸法Ａが均一
となり、排気ガスの流れが整流されてタービン性能の向
上が期待できる。Next, the operation of the above embodiment will be described.
The essential point of this embodiment is that only a part of the turbine housing is divided and the flange 12 and the partition wall 11 are incorporated into the part through the spigot part. Therefore, the flange 12 formed on the turbine housing body 10
The fitting spigot parts 10d, 10e for the partition wall 11 and the partition wall 11 can be formed into a perfect circle centered on the axis 16 of the rotation shaft of the turbine wheel 14, and at the same time, the partition wall 11 can be formed.
Since the shape of can also be a simple disk shape, the production cost is reduced. Further, as a result, the manufacturing accuracy in the vicinity of the turbine wheel is improved, the dimension A of the exhaust gas inflow throat portion 15 is made uniform, the flow of exhaust gas is rectified, and improvement of turbine performance can be expected.
【００１０】[0010]
【発明の効果】本発明のターボチャージャ用タービンハ
ウジングは前記のとおり構成したので、タービンハウジ
ング本体１０のインロー部１０ｄ，１０ｅ形状がタービ
ンホイール１４の回転軸の軸線１６を中心とする真円に
形成可能となり、同時に仕切壁１１及びフランジ１２の
嵌合部も簡単な円形にできるようになり大幅に安価で高
精度に製作できるようになった。その結果、特にタービ
ンホイール１４近傍の製作精度が向上し、排気ガス流入
スロート部１５の寸法Ａが均一となり、排気ガスの流れ
が整流されてタービン性能を格段に向上させる効果が得
られる。Since the turbocharger turbine housing of the present invention is constructed as described above, the spigot portions 10d and 10e of the turbine housing body 10 are formed in a perfect circle centered on the axis 16 of the rotating shaft of the turbine wheel 14. At the same time, the fitting portion of the partition wall 11 and the flange 12 can also be formed in a simple circular shape, and it can be manufactured at a significantly low cost and with high precision. As a result, the manufacturing accuracy particularly near the turbine wheel 14 is improved, the dimension A of the exhaust gas inflow throat portion 15 is made uniform, and the flow of the exhaust gas is rectified, so that the turbine performance is significantly improved.
【図１】本発明の第１実施例に係る構成部品の縦断面FIG. 1 is a longitudinal section of a component according to a first embodiment of the present invention.
【図２】本発明の第１実施例に係るタービンハウジング
本体の正面図FIG. 2 is a front view of the turbine housing body according to the first embodiment of the present invention.
【図３】同仕切壁の正面図[Figure 3] Front view of the partition wall
【図４】同フランジの正面図FIG. 4 is a front view of the flange.
【図５】従来例の図１応当図[Fig. 5] Fig. 1 corresponding diagram of the conventional example
【図６】図５のＣ−Ｃ断面図6 is a sectional view taken along line CC of FIG.
１０…タービンハウジング本体、１０ａ，１０ｂ…排気
ガス入口通路、１０ｃ…第１の排気ガス流路、１０ｄ，
１０ｅ…インロー部、１１…仕切壁、１２…フランジ、
１２ａ…第２の排気ガス流路、１２ｂ…インロー部、１
４…タービンホイール、１６…軸線。10 ... Turbine housing body, 10a, 10b ... Exhaust gas inlet passage, 10c ... First exhaust gas passage, 10d,
10e ... Inlay part, 11 ... Partition wall, 12 ... Flange,
12a ... second exhaust gas flow passage, 12b ... inlay portion, 1
4 ... Turbine wheel, 16 ... Axis.
Claims (1)
を二分割する仕切壁（１１）を設けたターボチャージャ
において、排気ガス入口通路二箇所（１０ａ）（１０
ｂ）を有するとともにその一箇所（１０ｂ）と環状的に
連続する第１の排気ガス流路（１０ｃ）を一体に備えか
つタービンホイール（１４）の回転軸の軸線（１６）を
中心として製作される真円のインロー部（１０ｄ）（１
０ｅ）を内部に有するタービンハウジング（１０）と、
前記タービンホイール（１４）の回転軸の軸線（１６）
を中心として設けられる同心円形状の別体型仕切壁（１
１）と、環状的に連続する第２の排気ガス流路（１２
ａ）を備えかつ前記タービンオイール（１４）の回転軸
の軸線（１６）と同軸でタービンハウジング（１０）の
インロー部（１０ｄ）と嵌合する真円のインロー部（１
２ｂ）を外周部に有するフランジ（１２）とを有してな
るターボチャージャ用タービンハウジング。1. A turbocharger provided with a partition wall (11) that divides an interior of an exhaust gas passage of a turbine housing into two parts, in which two exhaust gas inlet passages (10a) (10) are provided.
b) is integrally provided with a first exhaust gas flow path (10c) which has one part (10b) and is annularly continuous, and is manufactured around the axis (16) of the rotating shaft of the turbine wheel (14). Perfect circle spigot part (10d) (1
0e) therein, a turbine housing (10),
The axis (16) of the rotating shaft of the turbine wheel (14)
Concentric circular partition wall (1
1) and a second exhaust gas flow passage (12
a) a perfect circular spigot part (1) which is equipped with a) and is fitted with the spigot part (10d) of the turbine housing (10) coaxially with the axis (16) of the rotating shaft of the turbine oil (14).
A turbine housing for a turbocharger, comprising a flange (12) having 2b) on an outer peripheral portion thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25653893A JP3422533B2 (en) | 1993-09-20 | 1993-09-20 | Turbocharger turbine housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25653893A JP3422533B2 (en) | 1993-09-20 | 1993-09-20 | Turbocharger turbine housing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0791399A true JPH0791399A (en) | 1995-04-04 |
| JP3422533B2 JP3422533B2 (en) | 2003-06-30 |
Family
ID=17294023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25653893A Expired - Lifetime JP3422533B2 (en) | 1993-09-20 | 1993-09-20 | Turbocharger turbine housing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3422533B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671159A (en) * | 2019-09-18 | 2020-01-10 | 无锡康明斯涡轮增压技术有限公司 | Turbocharger volute |
-
1993
- 1993-09-20 JP JP25653893A patent/JP3422533B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671159A (en) * | 2019-09-18 | 2020-01-10 | 无锡康明斯涡轮增压技术有限公司 | Turbocharger volute |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3422533B2 (en) | 2003-06-30 |
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