JPH0452361B2 - - Google Patents
Info
- Publication number
- JPH0452361B2 JPH0452361B2 JP57121476A JP12147682A JPH0452361B2 JP H0452361 B2 JPH0452361 B2 JP H0452361B2 JP 57121476 A JP57121476 A JP 57121476A JP 12147682 A JP12147682 A JP 12147682A JP H0452361 B2 JPH0452361 B2 JP H0452361B2
- Authority
- JP
- Japan
- Prior art keywords
- ceramic turbine
- impeller
- turbine impeller
- shaft
- ceramic
- 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 - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
- F01D5/284—Selection of ceramic materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/025—Fixing blade carrying members on shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/027—Arrangements for balancing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Supercharger (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
【発明の詳細な説明】
本発明は内燃機関に装着される過給機に係り、
特に、セラミツクスタービン羽根車を用いた過給
機に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a supercharger installed in an internal combustion engine,
In particular, it relates to a supercharger using a ceramic turbine impeller.
従来のタービン羽根車はNi，Cr等を主体とす
る超耐熱合金で形成されたものが用いられていた
が、これに接触する流体温度は約1000℃以下に制
限されていた。しかるに、内燃機関の効率を高め
るために断熱機関等が検討されるに伴つてその排
気ガスは更に高温となり、上記超耐熱合金も使用
できないようになり、セラミツクスタービン羽根
車が必要となつてきた。また、従来のタービン羽
根車はそのデイスク部を削り取つてアンバランス
を除き、高速回転時の安全を保持していたが、セ
ラミツクス材は、難削材であるので、精密なバラ
ンスを確保することは困難であるという問題点を
もつていた。 Conventional turbine impellers have been made of super heat-resistant alloys mainly composed of Ni, Cr, etc., but the temperature of the fluid in contact with the impellers has been limited to approximately 1000°C or less. However, as adiabatic engines and the like are being considered to improve the efficiency of internal combustion engines, their exhaust gases have become even hotter, making it no longer possible to use the above-mentioned super heat-resistant alloys, and ceramic turbine impellers have become necessary. In addition, conventional turbine impellers had their discs removed to remove unbalance and maintain safety during high-speed rotation, but ceramics are difficult to cut, so it is necessary to ensure precise balance. The problem was that it was difficult.
なお、例えば、特開昭55−125320号公報には関
連する技術が開示されている。 Note that, for example, Japanese Patent Laid-Open No. 125320/1983 discloses related technology.
本発明は上記従来技術の欠点を解消し、セラミ
ツクス材を用いた場合でも容易にバランスさせる
ことができるセラミツクスタービン羽根車を用い
た過給機を提供することを目的とし、セラミツク
スタービン羽根車とコンプレツサ羽根車とを軸の
両端に固定し、内燃機関の排気ガスをタービンケ
ース内に導入して上記セラミツクスタービン羽根
車を回転させることにより、上記コンプレツサ羽
根車によつてコンプレツサケースより圧縮空気を
上記内燃機関に圧送するごとく構成した過給機に
おいて、先端に上記コンプレツサー羽根車を取り
付けるためのねじ部を形成し根本に上記セラミツ
クスタービン羽根車のデスクの端面に当設する大
径の鍔部が形成されている軸と、一端には上記セ
ラミツクスタービン羽根車のデスクの中心孔を貫
通し上記軸の中心に設けられているねじ孔に螺合
するねじ部を有し他端には上記セラミツクスター
ビン羽根車のデスクの先端部の面積とほぼ同等の
面積を有する大径の頭部を持つている固定ねじと
を有し、上記軸の上記鍔部と上記固定ねじの上記
頭部の内少なくとも上記固定ねじの上記頭部に上
記セラミツクスタービンの回転中のバランスをと
るための加工可能部を設けてなることを特徴とす
るものである。 The present invention aims to solve the above-mentioned drawbacks of the prior art and provide a supercharger using a ceramic turbine impeller that can be easily balanced even when ceramic materials are used. An impeller is fixed to both ends of the shaft, and the exhaust gas of the internal combustion engine is introduced into the turbine case to rotate the ceramic turbine impeller. In a supercharger configured to feed under pressure to an internal combustion engine, a threaded portion for attaching the compressor impeller is formed at the tip, and a large-diameter flange portion is formed at the base to abut against the end surface of the desk of the ceramic turbine impeller. one end has a threaded portion that passes through the center hole of the disk of the ceramic turbine impeller and is screwed into a threaded hole provided at the center of the shaft, and the other end has a threaded portion that penetrates the center hole of the disk of the ceramic turbine impeller, and the other end has a threaded portion that passes through the center hole of the disk of the ceramic turbine impeller. a fixing screw having a large diameter head having an area approximately equivalent to the area of the tip of a car desk; The present invention is characterized in that the head of the screw is provided with a machinable part for balancing the ceramic turbine during rotation.
第１図はセラミツクスタービン羽根車を用いた
過給機の構造を示す断面図である。タービンケー
ス１の中心にはセラミツクスタービン羽根車２が
軸３の右端に固定ねじ９で固定されている。ま
た、軸３はセンターハウジング１０に設けた軸受
４ａ，４ｂを介して回転自在に支持されると共
に、このセンターハウジング１０の左側に取り付
けたコンプレツサケース７内に設置したスラスト
軸受５等で支承されている。更に、軸３の左端に
はコンプレツサ羽根車６が取り付けてあり、その
周囲はコンプレツサケース７で包囲されている。 FIG. 1 is a sectional view showing the structure of a supercharger using a ceramic turbine impeller. At the center of a turbine case 1, a ceramic turbine impeller 2 is fixed to the right end of a shaft 3 with a fixing screw 9. Further, the shaft 3 is rotatably supported via bearings 4a and 4b provided in the center housing 10, and is also supported by a thrust bearing 5 etc. installed in the compressor case 7 attached to the left side of the center housing 10. ing. Furthermore, a compressor impeller 6 is attached to the left end of the shaft 3, and its periphery is surrounded by a compressor case 7.
このように構成された過給機の動作を次に簡単
に説明する。破線矢印で示す内燃機関よりの高温
排気ガスがタービンケース１内に導入されて横向
き通路より排出される間に、セラミツクスタービ
ン羽根車２を回転させる。したがつて、軸３と共
にコンプレツサ羽根車６が回転して横方向から空
気を吸入し、上方向に圧縮空気を送り出し内燃機
関に供給する。なお、センターハウジング１０内
には潤滑油通路が軸受４に向つて設けてあり、軸
受４等を潤滑した潤滑油は内燃機関の油受皿に戻
つてくる。 The operation of the supercharger configured as described above will be briefly described below. A ceramic turbine impeller 2 is rotated while high-temperature exhaust gas from an internal combustion engine, indicated by a broken line arrow, is introduced into a turbine case 1 and discharged from a lateral passage. Therefore, the compressor impeller 6 rotates together with the shaft 3, sucks in air from the side, and sends compressed air upward to supply it to the internal combustion engine. Note that a lubricating oil passage is provided in the center housing 10 toward the bearing 4, and the lubricating oil that has lubricated the bearing 4 and the like returns to the oil pan of the internal combustion engine.
第２図は本発明のセラミツクスタービン羽根車
を用いた過給機の一実施例の要部の拡大断面図
で、第１図の該当部分に用いられる。このセラミ
ツクスタービン羽根車の過給機では、先端にコン
プレツサ羽根車６を取り付けるためのねじ部１１
を形成した軸３の根本は大径となつてセラミツク
スタービン羽根車２のデイスク部８の端面に当接
し、軸３の中心に設けたねじ孔にセラミツクスタ
ービン羽根車２の中心孔を貫通した大径の頭部９
ａをもつている固定ねじ９を螺合させて一体化し
ている。なお、軸３のデイスク部に接する部分に
は拡張させて大径の鍔部３ａを設けてある。この
ようにすれば、金属材よりなる固定ねじ９の頭部
９ａおよび軸３の鍔部３ａ、特に、固定ねじ９の
頭部９ａを回転中に削除してバランスさせること
が容易である。 FIG. 2 is an enlarged sectional view of a main part of an embodiment of a supercharger using a ceramic turbine impeller according to the present invention, and is used in the corresponding part of FIG. 1. In this ceramic turbine impeller supercharger, a threaded portion 11 for attaching a compressor impeller 6 to the tip
The root of the shaft 3 has a large diameter and comes into contact with the end surface of the disk portion 8 of the ceramic turbine impeller 2, and a screw hole provided at the center of the shaft 3 has a large diameter that passes through the center hole of the ceramic turbine impeller 2. diameter head 9
The fixing screw 9 having a mark a is screwed together and integrated. Note that a large-diameter flange portion 3a is provided at a portion of the shaft 3 that is in contact with the disk portion. In this way, it is easy to remove the head 9a of the fixing screw 9 made of a metal material and the flange 3a of the shaft 3, especially the head 9a of the fixing screw 9 during rotation to achieve balance.
本実施例のセラミツクスタービン羽根車を用い
た過給機は、固定ねじ９の頭部９ａを大きくして
おくことにより、回転中にこの部分を加工削除し
てバランスさせることが容易となるという効果を
もつている。 The supercharger using the ceramic turbine impeller of this embodiment has the effect that by making the head 9a of the fixing screw 9 large, it is easy to process and remove this part during rotation to achieve balance. It has
本発明のセラミツクスタービン羽根車を用いた
過給機は、加工可能部をセラミツクスタービン羽
根車を軸に固定する固定ねじの頭部に設けること
によつて、回転部材のパランスを得ることが容易
になるという効果をもつている。 In the supercharger using the ceramic turbine impeller of the present invention, by providing the machinable part on the head of the fixing screw that fixes the ceramic turbine impeller to the shaft, balance of the rotating member can be easily obtained. It has the effect of becoming.
第１図はセラミツクスタービン羽根車を用いた
過給機の構造を示す断面図、第２図は本発明のセ
ラミツクスタービン羽根車を用いた過給機の一実
施例の要部の断面図である。
２…セラミツクスタービン羽根車、３…軸、８
…デイイスク部、９…固定ねじ、９ａ…（固定ね
じの）頭部。
FIG. 1 is a cross-sectional view showing the structure of a supercharger using a ceramic turbine impeller, and FIG. 2 is a cross-sectional view of essential parts of an embodiment of a supercharger using a ceramic turbine impeller according to the present invention. . 2...Ceramics turbine impeller, 3...Shaft, 8
... Day disk part, 9... Fixing screw, 9a... Head (of fixing screw).
Claims (1)
羽根車とを軸の両端に固定し、内燃機関の排気ガ
スをタービンケース内に導入して上記セラミツク
スタービン羽根車を回転させることにより、上記
コンプレサ羽根車によつてコンプレサケースより
圧縮空気を上記内燃機関に圧送するごとく構成し
た過給機において、先端に上記コンプレツサー羽
根車を取り付けるためのねじ部を形成し根本に上
記セラミツクスタービン羽根車のデスクの端面に
当設する大径の鍔部が形成されている軸と、一端
には上記セラミツクスタービン羽根車のデスクの
中心孔を貫通し上記軸の中心に設けられているね
じ孔に螺合するねじ部を有し他端には上記セラミ
ツクスタービン羽根車のデスクの先端部の面積と
ほぼ同等の面積を有する大径の頭部を持つている
固定ねじとを有し、上記軸の上記鍔部と上記固定
ねじの上記頭部の内少なくとも上記固定ねじの上
記頭部に上記セラミツクスタービンの回転中のバ
ランスをとるための加工可能部を設けてなること
を特徴とするセラミツクスタービン羽根車を用い
た過給機。1. A ceramic turbine impeller and a compressor impeller are fixed to both ends of a shaft, and the exhaust gas of the internal combustion engine is introduced into the turbine case to rotate the ceramic turbine impeller, so that the compressor impeller rotates the compressor. In a supercharger configured to forcefully send compressed air to the internal combustion engine from a support case, a threaded portion for attaching the compressor impeller is formed at the tip, and the screw portion is attached to the end surface of the disk of the ceramic turbine impeller at the base. The shaft has a large-diameter flange formed thereon, and one end has a threaded portion that passes through the center hole of the disk of the ceramic turbine impeller and is screwed into a threaded hole provided at the center of the shaft. The end has a fixing screw having a large diameter head having an area approximately equal to the area of the tip of the desk of the ceramic turbine impeller, and the flange of the shaft and the fixing screw have A supercharger using a ceramic turbine impeller, characterized in that at least the head of the fixing screw is provided with a processable part for balancing the ceramic turbine during rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12147682A JPS5912101A (en) | 1982-07-13 | 1982-07-13 | Supercharger adopted ceramic turbine wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12147682A JPS5912101A (en) | 1982-07-13 | 1982-07-13 | Supercharger adopted ceramic turbine wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5912101A JPS5912101A (en) | 1984-01-21 |
| JPH0452361B2 true JPH0452361B2 (en) | 1992-08-21 |
Family
ID=14812092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12147682A Granted JPS5912101A (en) | 1982-07-13 | 1982-07-13 | Supercharger adopted ceramic turbine wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5912101A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI296025B (en) * | 2005-05-27 | 2008-04-21 | Delta Electronics Inc | Fan and impeller thereof |
| JP4934089B2 (en) * | 2008-04-09 | 2012-05-16 | 株式会社荏原製作所 | Turbo molecular pump |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3736811A (en) * | 1971-08-19 | 1973-06-05 | Gen Electric | Balance weight attachment for turbine wheels |
| DE2363594A1 (en) * | 1973-12-20 | 1975-06-26 | Siemens Ag | PROCEDURE AND WEIGHTS FOR BALANCING ROTATING SHAFTS, IN PARTICULAR TURBINE RUNNERS |
| JPS5924242B2 (en) * | 1976-03-31 | 1984-06-08 | 株式会社東芝 | Turbine rotor structure |
| JPS55107003A (en) * | 1979-02-13 | 1980-08-16 | Nissan Motor Co Ltd | Radial turbine rotor |
| JPS5629082A (en) * | 1979-08-15 | 1981-03-23 | Toshiba Corp | Closed electric compressor |
| JPS5867902U (en) * | 1981-10-30 | 1983-05-09 | 京セラ株式会社 | Turbine rotating body |
-
1982
- 1982-07-13 JP JP12147682A patent/JPS5912101A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5912101A (en) | 1984-01-21 |
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