GB2094896B - Impellers and processes for producing them by moulding - Google Patents

Impellers and processes for producing them by moulding

Info

Publication number
GB2094896B
GB2094896B GB8207445A GB8207445A GB2094896B GB 2094896 B GB2094896 B GB 2094896B GB 8207445 A GB8207445 A GB 8207445A GB 8207445 A GB8207445 A GB 8207445A GB 2094896 B GB2094896 B GB 2094896B
Authority
GB
United Kingdom
Prior art keywords
pattern
impellers
moulding
processes
producing
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
GB8207445A
Other versions
GB2094896A (en
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.)
GUINARD POMPES
POMPES GUINARD ETS
Original Assignee
GUINARD POMPES
POMPES GUINARD ETS
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, POMPES GUINARD ETS filed Critical GUINARD POMPES
Publication of GB2094896A publication Critical patent/GB2094896A/en
Application granted granted Critical
Publication of GB2094896B publication Critical patent/GB2094896B/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
    • F04D29/18—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>
GB8207445A 1981-03-13 1982-03-15 Impellers and processes for producing them by moulding Expired GB2094896B (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 (2)

Publication Number Publication Date
GB2094896A GB2094896A (en) 1982-09-22
GB2094896B true GB2094896B (en) 1985-09-04

Family

ID=9256220

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8207445A Expired GB2094896B (en) 1981-03-13 1982-03-15 Impellers and processes for producing them by moulding

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
ES8402395A1 (en) 1984-02-16
IT1157639B (en) 1987-02-18
JPH0235879B2 (en) 1990-08-14
DE3271106D1 (en) 1986-06-19
GR74748B (en) 1984-07-11
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

Similar Documents

Publication Publication Date Title
GB2094896B (en) Impellers and processes for producing them by moulding
ES8204338A1 (en) Method for injection moulding coated parts from plastics material
OA05120A (en) A method of manufacturing a reinforcing strip, in particular for coating a pipe.
Degay et al. Impellers and Processes for Producing Them by Moulding
SU619321A1 (en) Method of securing articles of intricate shape
FR2336997A1 (en) PROCESS FOR THE REALIZATION OF A MONOBLOC MODEL USEFUL FOR THE MANUFACTURING OF MOLDS
GB2216048B (en) Pump impeller
CN1130160A (en) Expansive gypsum type material and its technology for producing model
JPS5459661A (en) Heat exchanger and the manufacturing method of same
JPS5467611A (en) Method of positioning output shaft of motor
GB2003421A (en) Mould assembly and method of making the same
FR2275497A1 (en) PROCESS FOR MANUFACTURING MOLDED BODIES AND COATINGS FROM EPOXY RESINS HARDENED WITH UREA OR POLYURIDE
FR2305464A1 (en) CURING RESINOUS MASSES WITH LOW SHRINKAGE, BASED ON UNSATURATED POLYESTER RESINS AND SUITABLE FOR THE MANUFACTURE OF FLUID MOLDING MASSES
JPS5777531A (en) Centrifugal molding method of resin pipe having trapezoidal section with reinforcing fiber therein
JPS5526074A (en) Manufacturing bobbin for moving-coil-type arc-shaped motor
Arnold Liquid Molding Process Design with the Help of Computer-Based Cost Modeling
JPS53120768A (en) Molds for thermosetting resins
JPS56111626A (en) Production of cubic body with decorative layer on outside surface
JPS54135849A (en) Mold for forming plastic lens
JPS5543267A (en) Impeller and its manufacturing method
JPS57181819A (en) Forming method of resin mold having undercut shape
JPS5563231A (en) Method of molding gear on base plate
JPS5690513A (en) Molded coil and manufacture thereof
FR2338122A1 (en) DEEP CAVITY METHOD AND MODEL FOR SHAPING A PLASTIC FILM ON THE MODEL
JPS55123422A (en) Forming of fiber-reinforced plastic molding having container shape

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970315