Regenerative turbine pumps
AssigneeEbs-Ray Pumps Pty Ltd
InventorsJames Jay Davis, John Cosgrove, Stephen Basclain, Malcolm Malone, Jonathan Gough
Life of this patent
Estimating the term…
Abstract
Turbine pumps can include: an inlet port; a first discharge port; a body defining a flow path extending from the inlet port through a raceway to the discharge port; and a turbine impeller disposed in the raceway. In some pumps, the body further defines an channel providing a fluid connection between a raceway outlet and the discharge port. In some pumps, an outlet angle defined by the inlet port, an axis of the turbine, and the discharge port is between 30 and 180 degrees.
Claims27
A regenerative turbine pump comprising:
- an inlet port of the pump;
- a discharge port of the pump;
- a housing defining a flow path extending from the inlet port of the pump through a raceway channel to the discharge port of the pump, wherein the raceway channel extends from an inlet of the raceway channel to an outlet of the raceway channel;
- and
- a turbine impeller disposed in the raceway channel;
- wherein the housing further defines an annular channel providing a fluid connection between the outlet of the raceway channel and the discharge port of the pump, the annular channel comprising a first annular channel and a second annular channel, wherein the raceway channel is disposed between the first annular channel and the second annular channel;
- and
- wherein a raceway outlet angle defined by a centerline of the inlet port, an axis of the turbine impeller, and a centerline of the outlet of the raceway channel is less than 90 degrees.
A regenerative turbine pump comprising:
- an inlet port of the pump;
- a discharge port of the pump;
- a body defining a flow path extending from the inlet port of the pump through a raceway channel to the discharge port of the pump, wherein the raceway channel extends from an inlet of the raceway channel to an outlet of the raceway channel;
- and
- a turbine impeller disposed in the raceway channel;
- wherein the body further defines a channel providing a fluid connection between the outlet of the raceway channel and the discharge port of the pump, wherein the channel is laterally offset from the raceway channel;
- wherein a raceway outlet angle defined by a centerline of the inlet port, an axis of the turbine impeller, and a centerline of the outlet of the raceway channel is less than 90 degrees;
- and
- wherein an outlet angle of the pump defined by the centerline of the inlet port, the axis of the turbine impeller, and a centerline of the discharge port is between 30 and 180 degrees;
- wherein the channel extends 360 degrees to form a closed channel.
A regenerative turbine pump comprising:
- an inlet port of the pump;
- a discharge port of the pump;
- a housing defining a flow path extending from the inlet port of the pump through a raceway channel to the discharge port of the pump, wherein the raceway channel extends from an inlet of the raceway channel to an outlet of the raceway channel;
- and
- a turbine impeller disposed in the raceway channel;
- wherein the housing further defines an annular channel providing a fluid connection between the outlet of the raceway channel and the discharge port of the pump, wherein the annular channel extends 360 degrees to form a closed annular channel;
- and
- wherein a raceway outlet angle defined by a centerline of the inlet port, an axis of the turbine impeller, and a centerline of the outlet of the raceway channel is less than 90 degrees.
Dependencies are inferred from the claim text.