JPS6054732U

JPS6054732U - Rotor for turbo charger

Info

Publication number: JPS6054732U
Application number: JP14523683U
Authority: JP
Inventors: 都築　義彦
Original assignee: トヨタ自動車株式会社
Priority date: 1983-09-20
Filing date: 1983-09-20
Publication date: 1985-04-17

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例であるロータをターボチャー
ジャに配置された状態で示す正面断面図、第２図は第１
図におけるロータの回転軸とタービンホイールとを組み
付けた状態で示す正面断　“面図、第３図は第１図、第
２図におけるタービンホイールを組付は前の状態で示す
斜視図、第４図は第１図、第２図における裏板を回転軸
に固定した状態で示す斜視図である。第５図および第６
図はそれぞれ本考案にかかるロータの他の形態のトルク
伝達手段を示す要部断面図、第７図は第６図におけるタ
ービンホイールと裏板とが離れるのを防止するための保
合部を示す要部断面図である。１０：ロータ、１２：回転軸、１４：羽根、１８：ター
ビンホイール、２０：コンプレッサホイール、５４：嵌
合突部、６２：行き止まり穴、６４：裏板、６６：嵌合
部、６８：凹所、７０：突起、７６：テーパ穴、７８：
突起、８０：嵌合部、８２：嵌合突部。Fig. 1 is a front cross-sectional view showing a rotor according to an embodiment of the present invention arranged in a turbocharger;
Figure 3 is a front cross-sectional view showing the rotor rotating shaft and turbine wheel assembled together; Figure 3 is a perspective view showing the turbine wheel in Figure 1 and Figure 2 before assembly; The figure is a perspective view showing the back plate in FIGS. 1 and 2 fixed to the rotating shaft.
Each figure is a sectional view of a main part showing another form of torque transmission means for a rotor according to the present invention, and FIG. 7 shows a retaining part for preventing the turbine wheel and back plate in FIG. 6 from coming apart. It is a sectional view of the main part. 10: Rotor, 12: Rotating shaft, 14: Vane, 18: Turbine wheel, 20: Compressor wheel, 54: Fitting protrusion, 62: Dead end hole, 64: Back plate, 66: Fitting part, 68: Recess , 70: protrusion, 76: tapered hole, 78:
Projection, 80: Fitting portion, 82: Fitting protrusion.

Claims

[Scope of utility model registration request]

(1) A rotor for a turbocharger that pressurizes and supplies intake air to an engine, and includes a hollow cylindrical metal rotating shaft, a compressor wheel fixed to one end of the rotating shaft, and a plurality of rotors on the surface side. It has a disc shape with blades, and has a concave or convex fitting part with a circular cross section centered on the shaft center in the center of the back side, and the compressor of the rotating shaft is connected to the compressor of the rotating shaft in the fitting part. a ceramic turbine wheel fitted to an end opposite the fixed side of the wheel;
A plate-like member extending in the radial direction of the rotating shaft and fixed to the rotating shaft in contact with the back surface of the turbine wheel.
A rotor for a turbocharger, characterized in that the rotor comprises: a back plate having a rotary structure; and a torque transmitting means, which is provided astride between the back plate and the turbine wheel, and transmits rotational torque of the turbine wheel to the back plate. .

(2) The torque transmission means includes a protrusion that protrudes from one of the turbine wheel and the back plate toward the other, and a recess that is formed on the other and is fitted into the protrusion. The turbocharger according to claim 1, wherein the projecting portion and the concave portion have adjacent side end surfaces formed as torque transmitting surfaces substantially parallel to the axis of the rotating shaft. Rotor.

(3) The torque transmission means has a hole provided inside the turbine wheel and opens on the back side thereof, and a metal material filled in the hole is integrally bonded to the back plate at a contact portion with the back plate. A rotor for a turbocharger according to claim 1, which includes a protrusion formed by the above-described process.