FIELD: machine building.
SUBSTANCE: blade (l1) is intended to be mounted on hub (12, 13) of a turbomachine propeller so that empty space (18, 18A, 18B) is defined between base (14A) of blade (14) and face of hub (12, 13) facing said base (14A). Blade (l1) comprises retractable blanking means (16, 17) which can occupy a deployed position in which the retractable blanking means blank off said empty space (18, 18A, 18B), and an extreme retracted position in which retractable means are kept out of said empty space. Propeller comprises blades. Turbomachine includes propeller.
EFFECT: group of inventions is aimed at improving efficiency.
13 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| TURBINE MACHINE PROPELLER BLADE, PARTICULARLY FAN WITHOUT FAIRING, AND CORRESPONDING PROPELLER AND TURBO MACHINE | 2012 |
|
RU2606787C2 |
| BLADE OF COOLING STACK FAN | 2009 |
|
RU2407922C1 |
| MULTI-CIRCUIT PROPELLER BLADE | 2021 |
|
RU2767574C1 |
| BLADE OF COOLING STACK FAN | 2009 |
|
RU2407924C1 |
| PROPELLER BLADE AND AEROFOIL PROFILE OF BLADE (VERSIONS) | 1996 |
|
RU2145293C1 |
| BLADE OF COOLING STACK FAN | 2009 |
|
RU2407925C1 |
| BLADE OF PROPELLER FOR AIRCRAFT | 2010 |
|
RU2533384C2 |
| BLADE OF COOLING STACK FAN (VERSIONS) | 2009 |
|
RU2407923C1 |
| ROTOR BLADE | 2007 |
|
RU2376202C2 |
| PROPELLER BLADE FOR TURBO-MACHINE | 2013 |
|
RU2645180C2 |
