EP 0963315 A1 19991215 - DIFFERENTIAL MULTIPROPELLER SYSTEM
Title (en)
DIFFERENTIAL MULTIPROPELLER SYSTEM
Title (de)
MEHRPROPELLER SYSTEM MIT AUSGLEICHSGETRIEBE
Title (fr)
SYSTEME DIFFERENTIEL A PLUSIEURS HELICES
Publication
Application
Priority
- FI 9800162 W 19980224
- FI 970778 A 19970225
- FI 974256 A 19971117
Abstract (en)
[origin: WO9838085A1] A differential multipropeller system (100, 200, 300, 400, 600, 700) comprises a drive shaft (103, 203, 303, 403, 605, 702) as well as a first propeller (101, 601, 707) and a second propeller (102, 602, 708). The propellers are arranged concentrically in succession and so that, while the drive shaft turns around, it rotates the first propeller in an opposite direction than the second propeller. The drive shaft is concentric with the two propellers and extends through both of them.
IPC 1-7
IPC 8 full level
B63H 5/10 (2006.01)
CPC (source: EP)
B63H 5/10 (2013.01)
Citation (search report)
See references of WO 9838085A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9838085 A1 19980903; AT E229904 T1 20030115; AU 6101498 A 19980918; DE 69810276 D1 20030130; DE 69810276 T2 20040422; EP 0963315 A1 19991215; EP 0963315 B1 20021218; FI 974256 A0 19971117; FI 974256 A 19980826
DOCDB simple family (application)
FI 9800162 W 19980224; AT 98905432 T 19980224; AU 6101498 A 19980224; DE 69810276 T 19980224; EP 98905432 A 19980224; FI 974256 A 19971117