NZ332493A - An impeller and fan incorporating same, with impeller having inwardly curved airfoil type blades located spaced about axis - Google Patents
An impeller and fan incorporating same, with impeller having inwardly curved airfoil type blades located spaced about axisInfo
- Publication number
- NZ332493A NZ332493A NZ332493A NZ33249397A NZ332493A NZ 332493 A NZ332493 A NZ 332493A NZ 332493 A NZ332493 A NZ 332493A NZ 33249397 A NZ33249397 A NZ 33249397A NZ 332493 A NZ332493 A NZ 332493A
- Authority
- NZ
- New Zealand
- Prior art keywords
- impeller
- axis
- blade
- fluid flow
- rotation
- Prior art date
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
An impeller (10) is disclosed having an axis about which the impeller is rotatable in a working direction of rotation A. A plurality of aerofoil blades (14) are spaced from and arranged about the axis. The inwardly axis-facing surface (16) of each blade (14) defines a longer fluid flow path across the blade than the opposite outwardly-facing surface (18). Each blade has an angle of attack from 0° up to a positive angle of attack less than that at which the blade will induce turbulent fluid flow when the impeller is rotated in a fluid at a working speed in the working direction of rotation A. During such rotation the impeller induces an inlet fluid flow generally axially toward the impeller and an outward fluid flow away from the impeller in directions generally inclined about 30° or more or less relative to axis.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ332493A NZ332493A (en) | 1996-05-07 | 1997-05-07 | An impeller and fan incorporating same, with impeller having inwardly curved airfoil type blades located spaced about axis |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ28653596 | 1996-05-07 | ||
PCT/NZ1997/000055 WO1997042416A1 (en) | 1996-05-07 | 1997-05-07 | An impeller and fan incorporating same |
NZ332493A NZ332493A (en) | 1996-05-07 | 1997-05-07 | An impeller and fan incorporating same, with impeller having inwardly curved airfoil type blades located spaced about axis |
Publications (1)
Publication Number | Publication Date |
---|---|
NZ332493A true NZ332493A (en) | 2000-09-29 |
Family
ID=26651610
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NZ332493A NZ332493A (en) | 1996-05-07 | 1997-05-07 | An impeller and fan incorporating same, with impeller having inwardly curved airfoil type blades located spaced about axis |
Country Status (1)
Country | Link |
---|---|
NZ (1) | NZ332493A (en) |
-
1997
- 1997-05-07 NZ NZ332493A patent/NZ332493A/en unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6702552B1 (en) | Impeller having blade(s) conforming to the golden section of a logarithmic curve | |
CA2068854A1 (en) | Impeller for centrifugal pumps | |
PL335864A1 (en) | Flow passage or turbine vane surface structure | |
CA2378607A1 (en) | Rotor with a split rotor blade | |
WO1995029331A3 (en) | Stator vane arrangement for successive turbine stages | |
NZ337595A (en) | Improved fluid displacing blade | |
KR950704615A (en) | Impeller (AN IMPELLER) | |
JPS6429700A (en) | Multistage fluidic machine | |
CN101135319A (en) | Screw propeller type fan | |
ATE330132T1 (en) | CENTRIFUGAL FAN | |
CA2227575A1 (en) | Fluid impeller | |
NZ332493A (en) | An impeller and fan incorporating same, with impeller having inwardly curved airfoil type blades located spaced about axis | |
JPS62157891A (en) | Flow feed straightening blade | |
GB693686A (en) | Improvements relating to bladed rotary fluid-flow machines | |
KR930007499A (en) | Stirring blade | |
NZ514023A (en) | Multi blade rotor for wind power | |
KR840002956A (en) | Energy generating device by fluid medium | |
FR2692809B1 (en) | Rotary propeller agitator. | |
CA2217826A1 (en) | Hydro-turbine runner | |
WO1990013746A1 (en) | Propeller | |
SU931984A1 (en) | Axial guiding apparatus of fan | |
RU2094662C1 (en) | Fan | |
SU1590679A1 (en) | Impeller of centrifugal turbomachine | |
SU958711A2 (en) | Centrifugal fan | |
SE9602002D0 (en) | A of centrifugal impeller |