GB1311806A - Fan blades - Google Patents

Fan blades

Info

Publication number
GB1311806A
GB1311806A GB2377870A GB2377870A GB1311806A GB 1311806 A GB1311806 A GB 1311806A GB 2377870 A GB2377870 A GB 2377870A GB 2377870 A GB2377870 A GB 2377870A GB 1311806 A GB1311806 A GB 1311806A
Authority
GB
United Kingdom
Prior art keywords
glass fibre
rovings
foam
insert
fan blades
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
GB2377870A
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB1311806A publication Critical patent/GB1311806A/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
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F04D29/388—Blades characterised by construction

Abstract

1311806 Moulding fan blades SIEMENS AG 15 May 1970 [24 May 1969] 23778/70 Heading B5A [Also in Division F1] A fan blade comprises a polyurethane diisomer foam 2 having a dense closed outer layer 3 and an insert 1 which is embedded in the foam and spaced on all sides from the outside wall. The insert may be anchored to a metal base and may comprise (i) a glass fibre reinforcement in the form of a glass fibre mat or rovings or a woven glass fibre fabric (ii) a thermoplastic hollow elastic casing which may be surrounded by glass fibre rovings, or (iii) a pre-foamed core which may contain glass fibre rovings. The blade may be made by an injection moulding process, e.g. as in Specification 1,311,807.
GB2377870A 1969-05-24 1970-05-15 Fan blades Expired GB1311806A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1926694A DE1926694C3 (en) 1969-05-24 1969-05-24 Fan blades made of polyurethane duromer foam

Publications (1)

Publication Number Publication Date
GB1311806A true GB1311806A (en) 1973-03-28

Family

ID=5735167

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2377870A Expired GB1311806A (en) 1969-05-24 1970-05-15 Fan blades

Country Status (10)

Country Link
AT (1) AT297202B (en)
BE (1) BE750793A (en)
CH (1) CH518449A (en)
DE (1) DE1926694C3 (en)
ES (1) ES158681Y (en)
FR (1) FR2048717A5 (en)
GB (1) GB1311806A (en)
LU (1) LU60968A1 (en)
NL (1) NL7006195A (en)
ZA (1) ZA703476B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2279114A (en) * 1993-06-15 1994-12-21 Nuaire Ltd Fan impeller blade
WO1995006821A1 (en) * 1993-08-31 1995-03-09 F.S. Andersen A/S A fan assembly
US7837446B2 (en) 2004-12-22 2010-11-23 Rolls-Royce Plc Composite blade
US8556579B2 (en) 2009-05-21 2013-10-15 Rolls-Royce Plc Composite aerofoil blade with wear-resistant tip
US8647070B2 (en) 2009-05-21 2014-02-11 Rolls-Royce Plc Reinforced composite aerofoil blade
CN105485051A (en) * 2015-09-29 2016-04-13 常州倍安特动力机械有限公司 Fan for cooling generating device
RU2605481C2 (en) * 2013-08-28 2016-12-20 Текспейс Аеро С.А. Blade for turbomachine and method of making said blade

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2449214B1 (en) * 1979-02-19 1986-06-20 Neu Sa IMPROVEMENT WITH HELICOID FANS

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2279114A (en) * 1993-06-15 1994-12-21 Nuaire Ltd Fan impeller blade
WO1995006821A1 (en) * 1993-08-31 1995-03-09 F.S. Andersen A/S A fan assembly
US7837446B2 (en) 2004-12-22 2010-11-23 Rolls-Royce Plc Composite blade
US8556579B2 (en) 2009-05-21 2013-10-15 Rolls-Royce Plc Composite aerofoil blade with wear-resistant tip
US8647070B2 (en) 2009-05-21 2014-02-11 Rolls-Royce Plc Reinforced composite aerofoil blade
RU2605481C2 (en) * 2013-08-28 2016-12-20 Текспейс Аеро С.А. Blade for turbomachine and method of making said blade
CN105485051A (en) * 2015-09-29 2016-04-13 常州倍安特动力机械有限公司 Fan for cooling generating device

Also Published As

Publication number Publication date
AT297202B (en) 1972-03-10
BE750793A (en) 1970-11-23
NL7006195A (en) 1970-11-26
CH518449A (en) 1972-01-31
ES158681U (en) 1970-07-16
LU60968A1 (en) 1970-07-23
DE1926694A1 (en) 1970-11-26
DE1926694B2 (en) 1979-01-11
ES158681Y (en) 1971-04-01
FR2048717A5 (en) 1971-03-19
ZA703476B (en) 1971-08-25
DE1926694C3 (en) 1979-09-06

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Legal Events

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