FR2044581A5 - Forming small fan and turbine sections - Google Patents

Forming small fan and turbine sections

Info

Publication number
FR2044581A5
FR2044581A5 FR6917229A FR6917229A FR2044581A5 FR 2044581 A5 FR2044581 A5 FR 2044581A5 FR 6917229 A FR6917229 A FR 6917229A FR 6917229 A FR6917229 A FR 6917229A FR 2044581 A5 FR2044581 A5 FR 2044581A5
Authority
FR
France
Prior art keywords
small fan
forming small
turbine sections
extrusion
external surface
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
Application number
FR6917229A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Priority to FR6917229A priority Critical patent/FR2044581A5/en
Application granted granted Critical
Publication of FR2044581A5 publication Critical patent/FR2044581A5/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
    • F04D29/283—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis rotors of the squirrel-cage type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/08—Making wire, bars, tubes
    • B21C23/10—Making finned tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The fans are formed from a single extrusion having a cylindrical external surface and an internal surface having a series of ribs extending from it. The extrusion is cut into the required lengths and the external surface is turned so as to leave at least two distinct annular zones of the internal surface each connected by a junction comprising two cheeks otherwise connected to each end of each length.
FR6917229A 1969-05-27 1969-05-27 Forming small fan and turbine sections Expired FR2044581A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6917229A FR2044581A5 (en) 1969-05-27 1969-05-27 Forming small fan and turbine sections

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6917229A FR2044581A5 (en) 1969-05-27 1969-05-27 Forming small fan and turbine sections

Publications (1)

Publication Number Publication Date
FR2044581A5 true FR2044581A5 (en) 1971-02-19

Family

ID=9034647

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6917229A Expired FR2044581A5 (en) 1969-05-27 1969-05-27 Forming small fan and turbine sections

Country Status (1)

Country Link
FR (1) FR2044581A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008059775A1 (en) * 2006-11-14 2008-05-22 Daikin Industries, Ltd. Impeller for multi-blade fan

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008059775A1 (en) * 2006-11-14 2008-05-22 Daikin Industries, Ltd. Impeller for multi-blade fan

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Legal Events

Date Code Title Description
ST Notification of lapse