JPS6141922Y2 - - Google Patents
Info
- Publication number
- JPS6141922Y2 JPS6141922Y2 JP1982016362U JP1636282U JPS6141922Y2 JP S6141922 Y2 JPS6141922 Y2 JP S6141922Y2 JP 1982016362 U JP1982016362 U JP 1982016362U JP 1636282 U JP1636282 U JP 1636282U JP S6141922 Y2 JPS6141922 Y2 JP S6141922Y2
- Authority
- JP
- Japan
- Prior art keywords
- turbine wheel
- main body
- receiving part
- outlet side
- center hole
- 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.)
- Expired
Links
- 238000003754 machining Methods 0.000 claims description 4
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
Description
【考案の詳細な説明】
本考案は、エンジンのターボチヤージヤ等に用
いるラジアル型のタービンホイールに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a radial turbine wheel used in engine turbochargers and the like.
従来この種タービンホイールにおいては、第１
図に示す如く、タービンホイール本体ａの出口側
端面に、該本体ａの軸心のボス部ｂから一体に延
出して研削その他の機械加工時のセンター決めに
用いる先端のセンター孔ｃを有する受部ｄを突設
するを一般とするが、これによれば該受部ｄは該
センター孔ｃを穿設するに足る比較的大径のもの
に形成する必要があつて、該本体ａの出口側端面
の面積に占める該受部ｄの面積比率が大きくな
り、特にタービンホイールを小型のものとすると
この比率は更に増加して、出口側の有効開口面積
S1が減少し、タービンホイールの入口側の開口面
積S2との面積比S1／S2で定められる膨張比が減少
して効率が悪くなり、又大径の受部ｄが出口側端
面から突設される関係でバランス取りも困難にな
る不都合を伴う。 Conventionally, in this type of turbine wheel, the first
As shown in the figure, on the outlet side end surface of the turbine wheel main body a, there is a socket having a center hole c at the tip extending integrally from the boss part b of the axis of the main body a and used for centering during grinding or other machining. Generally, the receiving part d is provided in a protruding manner, but in this case, the receiving part d needs to be formed with a relatively large diameter that is sufficient to drill the center hole c, and the outlet of the main body a is The area ratio of the receiving part d to the area of the side end surface increases, and especially when the turbine wheel is made smaller, this ratio further increases, and the effective opening area on the outlet side increases.
S 1 decreases, and the expansion ratio determined by the area ratio S 1 /S 2 with the opening area S 2 on the inlet side of the turbine wheel decreases, resulting in poor efficiency. This is accompanied by the inconvenience that it is difficult to maintain balance due to the protruding position.
本考案は、かかる不都合を解消したタービンホ
イールを提供することをその目的とするもので、
第２図に例示する如く、ラジアル型のタービンホ
イール本体１の出口側端面に、該本体１の軸心の
ボス部２から一体に延出して機械加工時のセンタ
ー決めに用いる受部３を突設するものにおいて、
該受部３を先細のテーパ状突起に形成して成る。 The purpose of the present invention is to provide a turbine wheel that eliminates such inconveniences.
As illustrated in FIG. 2, a receiving part 3 is protruded on the outlet side end face of a radial type turbine wheel main body 1 and extends integrally from a boss part 2 of the axis of the main body 1 and is used for centering during machining. In what is established,
The receiving portion 3 is formed into a tapered projection.
図面で４はエンジンの排気通路に介在させるタ
ービンケースを示し、該ケース４内にタービンホ
イール本体１を装着し、これを連結軸５を介して
図示しないがエンジンの吸気通路に介在させるコ
ンプレツサケース内のコンプレツサホイールに連
結してターボチヤージヤを構成する。 In the drawings, reference numeral 4 indicates a turbine case interposed in the exhaust passage of the engine, and a compressor case in which the turbine wheel main body 1 is mounted in the case 4 and interposed in the intake passage of the engine (not shown) via a connecting shaft 5. It is connected to the inner compressor wheel to form a turbocharger.
該タービンホイール本体１は、機械加工時工作
機械側のセンター孔にテーパ状突起から成る前記
した受部３において受けさせるもので、この場合
該受部３の外径は前記した従来例の受部ｄに穿孔
するセンター孔ｃの内径と同様の可及的小径に形
成可能であり、該本体１を小型化した場合、その
出口側端面の面積に占める該受部ｄの面積比率は
従来例のものに比し著しく減少され、その分出口
側の有効開口面積S1が増加されて、入口側開口面
積S2との面積比S1／S2が増加され、膨張比の増加
により効率が向上される。 The turbine wheel body 1 is received by the above-mentioned receiving part 3 made of a tapered projection in a center hole on the machine tool side during machining, and in this case, the outer diameter of the receiving part 3 is the same as that of the conventional example described above. It can be formed to a diameter as small as possible, which is the same as the inner diameter of the center hole c drilled in the center hole c, and when the main body 1 is downsized, the area ratio of the receiving part d to the area of the end face on the exit side is the same as that of the conventional example. The effective opening area S 1 on the outlet side is increased accordingly, and the area ratio S 1 /S 2 with the opening area S 2 on the inlet side is increased, and the efficiency is improved by increasing the expansion ratio. be done.
この様に本考案によるときは、タービンホイー
ル本体１の出口側端面に突設する受部３を、先細
のテーパ状突起に形成するもので、該受部３は上
記した従来例の如くセンター孔ｃを形成する受部
ｄに比し小径のものに得られ、該本体１の小型化
によつても膨張比は大きな値に確保されて効率の
悪化を生ずることがなく、且つ該受部ｄの小型化
によりバランス取りも容易になる効果を有する。 As described above, according to the present invention, the receiving portion 3 protruding from the outlet side end face of the turbine wheel body 1 is formed into a tapered projection, and the receiving portion 3 has a center hole as in the conventional example described above. The diameter of the receiving part d is smaller than that of the receiving part d that forms the receiving part d. The smaller size has the effect of making balance easier.
第１図は従来例の截断側面図、第２図は本考案
実施の１例の截断側面図である。
１……タービンホイール本体、２……ボス部、
３……受部。
FIG. 1 is a cutaway side view of a conventional example, and FIG. 2 is a cutaway side view of an example of the present invention. 1...Turbine wheel body, 2...Boss part,
3...Ukebe.
Claims (1)
端面に、該本体１の軸心のボス部２から一体に延
出して機械加工時のセンター決めに用いる受部３
を突設するものにおいて、該受部３を先細のテー
パ状突起に形成して成るラジアル型タービンホイ
ール。 A receiving part 3 is provided on the outlet side end face of the radial type turbine wheel main body 1 and integrally extends from the boss part 2 of the axis of the main body 1 and is used for centering during machining.
A radial type turbine wheel in which the receiving portion 3 is formed into a tapered protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1636282U JPS58162201U (en) | 1982-02-10 | 1982-02-10 | Radial turbine wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1636282U JPS58162201U (en) | 1982-02-10 | 1982-02-10 | Radial turbine wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58162201U JPS58162201U (en) | 1983-10-28 |
| JPS6141922Y2 true JPS6141922Y2 (en) | 1986-11-28 |
Family
ID=30028735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1636282U Granted JPS58162201U (en) | 1982-02-10 | 1982-02-10 | Radial turbine wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58162201U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60201003A (en) * | 1984-03-27 | 1985-10-11 | Ngk Spark Plug Co Ltd | Ceramic rotor and manufacture thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3993370A (en) * | 1973-04-06 | 1976-11-23 | Cummins Engine Company, Inc. | Lubricated bearing structure |
-
1982
- 1982-02-10 JP JP1636282U patent/JPS58162201U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3993370A (en) * | 1973-04-06 | 1976-11-23 | Cummins Engine Company, Inc. | Lubricated bearing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58162201U (en) | 1983-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS63178630U (en) | ||
| JPS6141922Y2 (en) | ||
| JPH01179132U (en) | ||
| JPS6357328U (en) | ||
| JPS6125502U (en) | Turbine wheel with shaft | |
| JPS60139040U (en) | Oil filter for turbo gear | |
| JPS60187334U (en) | Structure of exhaust discharge part of turbocharger | |
| JPS6117104U (en) | Radial pin for positioning the turbine rotor and blade ring, etc. | |
| JPS6261942U (en) | ||
| JPS61107933U (en) | ||
| JPH01164047U (en) | ||
| JPS59131531U (en) | Turbo charger wastegate valve device | |
| JPS60120201U (en) | Turbo supercharger shaft | |
| JPS62124325U (en) | ||
| JPS59186430U (en) | Connection structure between turbine wheel and drive shaft of turbocharger | |
| JPS6379495U (en) | ||
| JPS62185915U (en) | ||
| JPH02104961U (en) | ||
| JPS6192729U (en) | ||
| JPS62193139U (en) | ||
| JPS58122702U (en) | turbine wheel | |
| JPS6444330U (en) | ||
| JPS6178235U (en) | ||
| JPS6039737U (en) | Turbine wheel for turbocharger | |
| JPH0212030U (en) |