Selfpriming system having valve for a centrifugal pump
AssigneeRio Boxx Holding B.V.
InventorSam SPEIJERS
Life of this patent
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Abstract
A system including a not self-priming medium pump including a pump head for supply of medium, a valve coupled to the pump head and which includes a passage operated by a float, and an air pump connected to the valve. The system controls the level of the medium in the pump head by the float. The float is shaped such that, when the pump head is filled with medium, an increasing upward force of the float is sufficient to close the passage in time. By virtue of optimized timing of, in particular, the closing, but also the opening, of the passage, both efficiency of the medium pump and service life of the air pump are improved, while the system is self-priming.
Claims16
1-15. (canceled)
A system comprising:
- a not self-priming medium pump including a pump head for supply of medium;
- a valve coupled to the pump head and which includes a passage operated by a float;
- and
- an air pump connected to the valve;
- wherein the system is configured to control a level of the medium in the pump head by the float, and the float is shaped such that, when the pump head is filled with medium, increasing upward force of the float is sufficient close the passage in time.
Dependencies are inferred from the claim text.