JPH01139001U - - Google Patents

Info

Publication number
JPH01139001U
JPH01139001U JP3443288U JP3443288U JPH01139001U JP H01139001 U JPH01139001 U JP H01139001U JP 3443288 U JP3443288 U JP 3443288U JP 3443288 U JP3443288 U JP 3443288U JP H01139001 U JPH01139001 U JP H01139001U
Authority
JP
Japan
Prior art keywords
turbine wheel
disk
ring
shaped protrusion
present
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.)
Pending
Application number
JP3443288U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP3443288U priority Critical patent/JPH01139001U/ja
Publication of JPH01139001U publication Critical patent/JPH01139001U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本考案によるタービン翼車の円板の一
例を示す該略外観図、第2図は本考案にしたがつ
てこのタービン翼車円板のリング状突起部に設け
られる奇数個の切込みの配置を示す図、第3図は
本考案が適用されるリング状突起部付きのタービ
ン翼車を示す図、第4図は従来のタービン翼車に
おける円板の振動変形を説明するための図、第5
図は従来のタービン翼車を示す図。第6図及び第
7図は従来例及び本考案によるタービン翼車の円
板振動モードの一例を比較して示す図である。 1……タービン翼車、2……タービン翼車円板
、3……翼、4……節線、5……翼溝、6……リ
ング状突起部、7a〜7g……切込み、8……対
角線。
FIG. 1 is a schematic external view showing an example of a disk of a turbine wheel according to the present invention, and FIG. 2 is an odd number of notches provided in the ring-shaped protrusion of the disk of the turbine wheel according to the present invention. FIG. 3 is a diagram showing a turbine wheel with a ring-shaped protrusion to which the present invention is applied, and FIG. 4 is a diagram for explaining vibration deformation of a disk in a conventional turbine wheel. , 5th
The figure shows a conventional turbine wheel. FIG. 6 and FIG. 7 are diagrams showing a comparative example of disk vibration modes of a conventional example and a turbine wheel according to the present invention. DESCRIPTION OF SYMBOLS 1... Turbine impeller, 2... Turbine impeller disk, 3... Blade, 4... Nodal line, 5... Blade groove, 6... Ring-shaped protrusion, 7a-7g... Notch, 8... …diagonal.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] タービン翼車における円板の外周側面に形成さ
れているリング状の突起部に、奇数個の切込みを
設けたことを特徴とするタービン翼車。
A turbine wheel characterized in that an odd number of notches are provided in a ring-shaped protrusion formed on the outer circumferential side of a disk in the turbine wheel.
JP3443288U 1988-03-17 1988-03-17 Pending JPH01139001U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3443288U JPH01139001U (en) 1988-03-17 1988-03-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3443288U JPH01139001U (en) 1988-03-17 1988-03-17

Publications (1)

Publication Number Publication Date
JPH01139001U true JPH01139001U (en) 1989-09-22

Family

ID=31261143

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3443288U Pending JPH01139001U (en) 1988-03-17 1988-03-17

Country Status (1)

Country Link
JP (1) JPH01139001U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016080025A1 (en) * 2014-11-17 2016-05-26 株式会社Ihi Axial-flow-machine blade

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016080025A1 (en) * 2014-11-17 2016-05-26 株式会社Ihi Axial-flow-machine blade
JP2016094914A (en) * 2014-11-17 2016-05-26 株式会社Ihi Wing of axial flow machine
US10465555B2 (en) 2014-11-17 2019-11-05 Ihi Corporation Airfoil for axial flow machine

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