EP 0651161 A1 19950503 - Device for cooling en electric motor for a turbo-fan.
Title (en)
Device for cooling en electric motor for a turbo-fan.
Title (de)
Kühlvorrichtung für einen Elektromotor eines Turbolüfters.
Title (fr)
Dispositif de refroidissement d'un moteur électrique pour une soufflante.
Publication
Application
Priority
SE 9303599 A 19931102
Abstract (en)
This invention relates to a device for cooling an electric motor for a turbo-fan unit. The motor has a shaft (16) which extends through the motor (10) and which supports a turbo-fan impeller (20) which is placed outside a shell (11) belonging to the motor. The turbo-fan impeller rotates with a speed above 50.000 rpm thereby creating a primary air flow which via an outlet (35) escapes from the turbo-fan unit. The turbo-fan unit (20) comprises means by means of which a secondary air flow is created which at least partly cools the electric motor and which from one or several cooling air inlets (28,30) separated from the primary air flow <IMAGE>
IPC 1-7
IPC 8 full level
F04D 25/08 (2006.01); F04D 25/16 (2006.01); F04D 29/58 (2006.01)
CPC (source: EP)
F04D 25/06 (2013.01); F04D 25/16 (2013.01); F04D 29/5806 (2013.01)
Citation (search report)
- [Y] WO 9101450 A1 19910207 - KELLER LUFTTECHNIK GMBH & CO KG [DE]
- [Y] US 5065063 A 19911112 - WATANABE YUJIRO [JP]
- [A] DE 3543833 A1 19871203 - LEITHNER JOACHIM [DE]
- [A] GB 1085565 A 19671004 - COLCHESTER WOODS
- [A] DE 1016887 B 19571003 - DIPL BERGING ALBRECHT GRAEFER, et al
- [A] CH 401335 A 19651031 - KOHL HANS [DE]
- [A] DE 689927 C 19400409 - PINTSCH JULIUS KG
- [ADP] WO 9415518 A1 19940721 - ELECTROLUX AB [SE], et al
- [Y] PATENT ABSTRACTS OF JAPAN vol. 15, no. 183 (E - 1065) 10 May 1991 (1991-05-10)
Designated contracting state (EPC)
DE DK ES FR GB IT NL SE
DOCDB simple family (publication)
EP 0651161 A1 19950503; EP 0651161 B1 19980401; CA 2134733 A1 19950503; CN 1107620 A 19950830; DE 69409326 D1 19980507; DE 69409326 T2 19981126; FI 945145 A0 19941101; FI 945145 A 19950503; JP H07167098 A 19950704; NO 944118 D0 19941028; NO 944118 L 19950503; RU 94040716 A 19961120; SE 9303599 D0 19931102; SE 9303599 L 19950503
DOCDB simple family (application)
EP 94850190 A 19941026; CA 2134733 A 19941031; CN 94118325 A 19941102; DE 69409326 T 19941026; FI 945145 A 19941101; JP 26966594 A 19941102; NO 944118 A 19941028; RU 94040716 A 19941101; SE 9303599 A 19931102