FIELD: manufacture of fans. SUBSTANCE: fan device includes hollow supply member and air duct connecting the supply member with secondary supply unit. Supply member is connected with surrounding medium. It is mounted for rotation about its axis. Supply member is made in form of hollow blades with holes for connecting the air duct with surrounding medium. EFFECT: improved service characteristics and extended functional capabilities. 9 cl, 13 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| VENTILATING DEVICE (VERSIONS) | 1999 |
|
RU2219374C2 |
| POWER PLANT | 1999 |
|
RU2230232C2 |
| DEVICE FOR PERFORMING PHYSICO-CHEMICAL PROCESSES | 1998 |
|
RU2200048C2 |
| HEAT-AND-POWER SYSTEM | 2001 |
|
RU2279511C2 |
| HELICOPTER | 2000 |
|
RU2271309C2 |
| APPARATUS FOR PREPARING FERMENTATION PRODUCT | 1995 |
|
RU2169178C2 |
| POWER SYSTEM | 2001 |
|
RU2309292C2 |
| METHOD REALIZING PHYSICAL PROCESSES AND DEVICE FOR ITS IMPLEMENTATION | 1995 |
|
RU2169611C2 |
| DEVICE FOR PREPARATION OF FERMENTATION PRODUCTS | 1994 |
|
RU2128687C1 |
| VENTILATING AND MIXING DEVICE | 2002 |
|
RU2296886C2 |
