Circulation pump assembly for a heating and/or cooling system
AssigneeGrundfos Holding A/S
InventorSøren Emil SØRENSEN
Life of this patent
Estimating the term…
Abstract
A circulation pump assembly for a heating and/or cooling system includes an electric drive motor (108) and a connected pump housing (106) in which at least one impeller (118) is situated and which comprises a first inlet (112) and a first outlet (114). The pump housing (106) includes a second inlet (122) which is connected in an inside of the pump housing (106) at a mixing point (130) to the first inlet (112). A regulating valve (134), which is designed for regulating the mixing ratio of two flows mixing at the mixing point (130), as well as a control device, which controls the regulating valve (134) for regulating the mixing ration, are arranged in the pump housing (106). A hydraulic manifold is provided with such a circulation pump assembly.
Claims17
A circulation pump assembly for a heating and/or cooling system, the circulation pump assembly comprising:
- an electric drive motor;
- at least one impeller;
- a pump housing connected to this drive motor, the at least one impeller being situated in the pump housing, the pump housing comprising a first inlet, an outlet and a second inlet which is connected in an inside of the pump housing at a mixing point to the first inlet;
- a regulating valve regulating a mixing ratio of two flows mixing at the mixing point, the regulating valve being arranged in the pump housing;
- and
- a control device controlling the regulating valve for regulating a mixing ration.
A hydraulic manifold and circulation pump assembly combination comprising:
- a circulation pump assembly comprising:
- an electric drive motor;
- at least one impeller;
- a pump housing connected to this drive motor, the at least one impeller being situated in the pump housing, the pump housing comprising a first inlet, an outlet and a second inlet which is connected in an inside of the pump housing at a mixing point to the first inlet;
- a regulating valve regulating a mixing ratio of two flows mixing at the mixing point, the regulating valve being arranged in the pump housing;
- and
- a control device controlling the regulating valve for regulating a mixing ration;
- at least one load module connected to the pump housing, the at least one load module comprising a section of a feed conduit and/or a section of a return conduit, wherein the section of the feed conduit is connected to the first outlet of the pump housing and comprises a feed connection and the section of the return conduit is connected to the second inlet of the pump housing and comprises a return connection.
Dependencies are inferred from the claim text.