Air diffuser system for industrial pumps
AssigneeWeir Minerals Australia Ltd.
InventorKevin Edward Burgess
Life of this patent
Estimating the term…
Abstract
An air diffuser system for an impeller for a centrifugal pump has least one channel (36) with first opening (40) through the backside (14) and a second opening (42) through the front side (38) of the impeller (12). Tubes (44) are associated with each channel (36) and extend from the backside (14) of the impeller (12). Tube ends (48) are oriented in the direction of rotation (46) of the impeller (12).
Claims21
An air diffuser system for an impeller for a centrifugal pump, the impeller being adapted for rotation in a normal rotation direction and including a front side and a back side, the air diffuser system comprising:
- at least one channel having a first opening through the back side and a second opening through the front side of the impeller;
- and
- a tube associated with each said at least one channel, said tube being at said first opening of said channel, said tube having a first end which connects to said channel and a second end having tube opening configured for orientation generally in the normal direction of rotation of an impeller.
An impeller for a centrifugal pump, the impeller being adapted for rotation in a normal rotation direction and including an impeller body including a front side and a back side and an air diffuser system which includes:
- a channel having a first opening through the back side and a second opening through the front side of the impeller;
- and
- a tube positioned in said first opening of said channel, said tube having a first end which connects to said channel and a second end having a tube opening configured for orientation in the normal direction of rotation of an impeller.
A method of fitting an air diffuser system to an impeller, the impeller including a front side and a back side and at least one channel having a first opening through the back side and a second opening through the front side the method including the steps of fitting a tube to the first opening of the channel, the tube being configured with a first end which connects to said channel and a second end having a tube opening which is arranged so as to face generally in the direction of normal rotation of the impeller.
An air diffuser system for an impeller for a centrifugal pump, the impeller being adapted for rotation in a normal rotation direction and including a front side and a back side, the air diffuser system comprising:
- at least one channel having a first opening through the back side and a second opening through the front side of the impeller;
- and
- a conduit associated with each said at least one channel, each said conduit being at said first opening of said channel, and said conduit having a first end which connects to said channel and a second end having a conduit opening configured for orientation generally in the normal direction of rotation of an impeller.
An air diffuser system for an impeller for a centrifugal pump, the impeller being adapted for rotation in a normal rotation direction and including a front side and a back side, the air diffuser system comprising:
- at least one channel having a first opening through the back side and a second opening through the front side of the impeller;
- and
- a flow director associated with each said at least one channel, each said flow director being at said first opening of said channel, said flow director having a first end which connects to said channel and a second end having an opening configured for orientation generally in the normal direction of rotation of an impeller.
Dependencies are inferred from the claim text.