JPH0444403U - - Google Patents

Info

Publication number
JPH0444403U
JPH0444403U JP6622990U JP6622990U JPH0444403U JP H0444403 U JPH0444403 U JP H0444403U JP 6622990 U JP6622990 U JP 6622990U JP 6622990 U JP6622990 U JP 6622990U JP H0444403 U JPH0444403 U JP H0444403U
Authority
JP
Japan
Prior art keywords
turbine
blades
air
drive spindle
spindle device
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
Application number
JP6622990U
Other languages
Japanese (ja)
Other versions
JP2583767Y2 (en
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 JP1990066229U priority Critical patent/JP2583767Y2/en
Publication of JPH0444403U publication Critical patent/JPH0444403U/ja
Application granted granted Critical
Publication of JP2583767Y2 publication Critical patent/JP2583767Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

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

第１図は本発明の実施例を示す断面図、第２図
は第１図の−断面を示す断面図、第３図およ
び第４図は騒音の周波数分析の結果を示すグラフ
である。 ３……タービン、３ａ……タービン翼、７……
タービンノズル、ｎ……タービン翼枚数、ｆｍａ
ｘ……可聴域限界周波数（Ｈｚ）、Ｎ……タービ
ンの回転数（ｒｐｓ）、ｆｐｋ……ピーク周波数
（Ｈｚ）。 FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a sectional view showing the negative cross section of FIG. 1, and FIGS. 3 and 4 are graphs showing the results of noise frequency analysis. 3... Turbine, 3a... Turbine blade, 7...
Turbine nozzle, n... Number of turbine blades, fma
x...Audio limit frequency (Hz), N...Turbine rotation speed (rps), fpk...Peak frequency (Hz).

Claims (1)

【実用新案登録請求の範囲】 (1) タービンノズルから噴出させた圧縮空気を
、タービンの外周に設けられた複数のタービン翼
に吹きつけてタービンを回転させるエアータービ
ン駆動スピンドル装置において、 タービン翼の枚数ｎが、可聴域限界周波数ｆｍ
ａｘ（Ｈｚ）をタービンの毎秒当りの回転数Ｎ（
ｒｐｓ）で除した値よりも多くなるようにしたエ
アータービン駆動スピンドル装置。 (2) タービン翼を同一円周上に配置した翼列を
タービンの軸方向に複数列設けると共に、タービ
ン翼の円周方向の配置位相を隣り合つた翼列間ご
とにずらし、且つ、全翼列のタービン翼合計枚数
ｎが請求項(1)の関係を満たすようにしたエアー
タービン駆動スピンドル装置。[Claims for Utility Model Registration] (1) In an air turbine drive spindle device that rotates a turbine by blowing compressed air from a turbine nozzle onto a plurality of turbine blades provided on the outer periphery of the turbine, The number n is the audible limit frequency fm
ax (Hz) is the number of rotations per second of the turbine N (
rps). (2) In addition to providing a plurality of blade rows in which turbine blades are arranged on the same circumference in the axial direction of the turbine, the arrangement phase of the turbine blades in the circumferential direction is shifted between adjacent blade rows, and all blades are An air turbine drive spindle device in which the total number n of turbine blades in a row satisfies the relationship set forth in claim (1).
JP1990066229U 1990-05-31 1990-06-22 Air turbine driven hydrostatic gas bearing spindle device Expired - Lifetime JP2583767Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990066229U JP2583767Y2 (en) 1990-05-31 1990-06-22 Air turbine driven hydrostatic gas bearing spindle device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP5828390 1990-05-31
JP2-58283 1990-05-31
JP1990066229U JP2583767Y2 (en) 1990-05-31 1990-06-22 Air turbine driven hydrostatic gas bearing spindle device

Publications (2)

Publication Number Publication Date
JPH0444403U true JPH0444403U (en) 1992-04-15
JP2583767Y2 JP2583767Y2 (en) 1998-10-27

Family

ID=31948590

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990066229U Expired - Lifetime JP2583767Y2 (en) 1990-05-31 1990-06-22 Air turbine driven hydrostatic gas bearing spindle device

Country Status (1)

Country Link
JP (1) JP2583767Y2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6375598U (en) * 1986-11-05 1988-05-19
JPS6429700A (en) * 1987-07-23 1989-01-31 Hitachi Ltd Multistage fluidic machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6375598U (en) * 1986-11-05 1988-05-19
JPS6429700A (en) * 1987-07-23 1989-01-31 Hitachi Ltd Multistage fluidic machine

Also Published As

Publication number Publication date
JP2583767Y2 (en) 1998-10-27

Similar Documents

Publication Publication Date Title
EP0206977B1 (en) Quiet bypass exhauster motor
JPS62179052U (en)
JPS61172973U (en)
JPH0444403U (en)
JPH03194196A (en) cross flow fan
JPS61188791U (en)
JPH0348353U (en)
JPH0397361U (en)
JPS6231796U (en)
JPH0444499U (en)
JPH0428765U (en)
JPH0348343U (en)
JPH042342U (en)
JPS61182492A (en) Centrifugal fan
JPS63105468U (en)
JPH01131250U (en)
JPS637952U (en)
JPH01150471U (en)
JPS63100696U (en)
JPH0334730U (en)
JPS62124667U (en)
JPH01166454U (en)
JPH0244849U (en)
JPH0419697U (en)
JPS6278398U (en)

Legal Events

Date Code Title Description
R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term