Dry Run Porting System
AssigneePentair Flow Technologies, LLC
InventorsPatrick A. Bear, Matthew A. Cottrell
Life of this patent
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Abstract
Embodiments of the invention provide a pump including an inlet port, an outlet port, a pumping chamber, and a porting system. The porting system includes an inlet tube including a trap in which a first volume of fluid can be collected. The porting system includes a reservoir with a first chamber and a second chamber separated by a partial port wall. The second chamber receives fluid directed over the partial port wall from the pumping chamber. The reservoir collects a second volume of fluid substantially equal to the first volume of fluid. The first volume of fluid and second volume of fluid provide enough fluid trapped inside the pump to allow the pump to temporarily operate when substantially no fluid is flowing into the inlet port.
Claims23
A pump comprising:
- an inlet port;
- an outlet port;
- a pumping chamber positioned between the inlet port and the outlet port;
- a porting system including
- an inlet tube in fluid communication with the inlet port, the inlet tube including a trap in which a first volume of fluid can be collected;
- an outlet tube in communication with the outlet port, and
- a reservoir in fluid communication with the pumping chamber, the reservoir including a first chamber and a second chamber separated by a partial port wall, the first chamber being in fluid communication with the outlet tube, the second chamber receiving fluid directed over the partial port wall from the pumping chamber, the reservoir collecting a second volume of fluid substantially equal to the first volume of fluid collected by the trap, the reservoir including an outlet that returns excess fluid to the pumping chamber;
- the first volume of fluid and second volume of fluid providing enough fluid trapped inside the pump to allow the pump to temporarily operate when substantially no fluid is flowing into the inlet port.
A pump comprising:
- an inlet port;
- an outlet port;
- a pumping chamber positioned between the inlet port and the outlet port;
- a porting system including an inlet tube in fluid communication with the inlet port, the inlet tube including a reservoir, the reservoir including
- a first chamber and a second chamber separated by a partial port wall,
- the first chamber providing fluid to the pumping chamber,
- the second chamber receiving fluid directed over the partial port wall from the inlet port,
- the second chamber collecting a volume of fluid in order to provide enough fluid trapped inside the pump to allow the pump to temporarily operate when substantially no fluid is flowing into the inlet port.
Dependencies are inferred from the claim text.