GR74748B - - Google Patents

Info

Publication number
GR74748B
GR74748B GR67406A GR820167406A GR74748B GR 74748 B GR74748 B GR 74748B GR 67406 A GR67406 A GR 67406A GR 820167406 A GR820167406 A GR 820167406A GR 74748 B GR74748 B GR 74748B
Authority
GR
Greece
Prior art keywords
pattern
sand
vanes
hub
web
Prior art date
Application number
GR67406A
Other languages
Greek (el)
Inventor
J Chadaineau
M Deray
Original Assignee
Guinard Pompes
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 Guinard Pompes filed Critical Guinard Pompes
Publication of GR74748B publication Critical patent/GR74748B/el

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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2205—Conventional flow pattern
    • F04D29/2222—Construction and assembly
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/10—Cores; Manufacture or installation of cores

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Knives (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

A pump impeller comprises a hub surrounded by a web which is a surface of revolution about, and whose imaginary projection intersects, the hub axis, the web carrying helico- centrifugal vanes with both faces of each vane parallel and formed as acute helicoids about the hub axis. The impeller is made by constructing a plastic pattern having vanes 12, using the pattern to form a sand mould, withdrawing the pattern from the sand with a helical movement and then filling the mould cavities with liquid metal. <IMAGE>
GR67406A 1981-03-13 1982-02-24 GR74748B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8105064A FR2501802B1 (en) 1981-03-13 1981-03-13 BLADE WHEEL AND TOOLS AND METHODS OF MANUFACTURING THEM BY MOLDING

Publications (1)

Publication Number Publication Date
GR74748B true GR74748B (en) 1984-07-11

Family

ID=9256220

Family Applications (1)

Application Number Title Priority Date Filing Date
GR67406A GR74748B (en) 1981-03-13 1982-02-24

Country Status (11)

Country Link
EP (1) EP0061947B1 (en)
JP (1) JPS57168094A (en)
AT (1) ATE19813T1 (en)
BE (1) BE892411A (en)
CH (1) CH647582A5 (en)
DE (1) DE3271106D1 (en)
ES (1) ES509988A0 (en)
FR (1) FR2501802B1 (en)
GB (1) GB2094896B (en)
GR (1) GR74748B (en)
IT (1) IT1157639B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63136279U (en) * 1987-02-26 1988-09-07
FR2703111B1 (en) * 1993-03-25 1995-06-30 Ozen Sa ROTOR FOR PUMP COMPRISING TWO WELDED ASSEMBLIES, OBTAINED BY INJECTION MOLDING OF THERMOPLASTIC MATERIALS, AND METHOD FOR MANUFACTURING SUCH A ROTOR.
GB9620633D0 (en) * 1996-10-03 1996-11-20 Elta Fans Ltd Improvements relating to fans
KR100633632B1 (en) * 1998-12-23 2006-10-11 제트팬 테크놀러지 리미티드 A mould for the manufacture of a fan having a hub and a plurality of helical blades extending from the hub
US6663347B2 (en) 2001-06-06 2003-12-16 Borgwarner, Inc. Cast titanium compressor wheel
US7857577B2 (en) 2007-02-20 2010-12-28 Schlumberger Technology Corporation System and method of pumping while reducing secondary flow effects
US20090297344A1 (en) * 2008-05-30 2009-12-03 Controlled Power Technologies Limited Rotors and manufacturing methods for rotors
DE102011011572A1 (en) * 2011-02-09 2012-08-09 Voith Patent Gmbh Casting blade wheels of hydrodynamic component having partially lost casting mold, comprises forming casting mold on side of blade wheel facing the working chamber of hydrodynamic component, and forming casting mold as sand mold
CN103551521B (en) * 2013-11-14 2015-07-29 宁夏共享集团有限责任公司 A kind of casting method of guide vane foundry goods
CN103736932A (en) * 2013-11-27 2014-04-23 江苏凯特汽车部件有限公司 Combination type vehicle aluminum alloy wheel mold core
CN114951554B (en) * 2022-06-07 2024-06-21 成都金顶精密铸造有限公司 Casting die system of female and male rotors of air compressor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1378524A (en) * 1920-08-19 1921-05-17 Stanley S Turner Core-box for pistons
DE414518C (en) * 1920-10-27 1925-06-05 Cameron Steam Pump Works As Impeller for high pressure centrifugal pumps
CH301112A (en) * 1950-10-27 1954-08-31 Maschf Augsburg Nuernberg Ag Impeller for centrifugal fan with axial inlet and radial outlet.
US3206807A (en) * 1964-10-29 1965-09-21 Worthington Corp Method of and means for making cores for impellers of the francis type
US3837612A (en) * 1973-06-01 1974-09-24 Red Jacket Mfg Co Mold apparatus for mixed flow impeller
US4231413A (en) * 1979-02-27 1980-11-04 Graham Bretzger Assembly for and method of making mold and casting of one-piece impellers

Also Published As

Publication number Publication date
FR2501802A1 (en) 1982-09-17
GB2094896A (en) 1982-09-22
GB2094896B (en) 1985-09-04
ES8402395A1 (en) 1984-02-16
IT1157639B (en) 1987-02-18
JPH0235879B2 (en) 1990-08-14
DE3271106D1 (en) 1986-06-19
IT8212449A0 (en) 1982-02-24
EP0061947B1 (en) 1986-05-14
EP0061947A1 (en) 1982-10-06
ATE19813T1 (en) 1986-05-15
BE892411A (en) 1982-09-08
FR2501802B1 (en) 1985-06-07
JPS57168094A (en) 1982-10-16
ES509988A0 (en) 1984-02-16
CH647582A5 (en) 1985-01-31

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