Patents by Inventor Peter Elvekjaer
Peter Elvekjaer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11927464Abstract: Computer-implemented methods are disclosed for determining a flow rate of fluid flow at a target time through a pump, such as a centrifugal pump, the pump being driven by a pump motor. An illustrative method includes, in some aspects: receiving at least one set of previous parameter values including a first previous parameter value indicative of a first operational parameter of the pump motor at a previous time, earlier than the target time, and a second previous parameter value indicative of a second operational parameter of the pump motor at the previous time, and receiving a current set of parameter values including a first current parameter value indicative of the first operational parameter of the pump motor at the target time and a second current parameter value indicative of the second operational parameter of the pump motor at the target time.Type: GrantFiled: November 13, 2020Date of Patent: March 12, 2024Assignee: Grundfos Holding A/SInventors: Peter Elvekjær, Jesper Thørring Damgaard, Carsten Christensen
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Publication number: 20210148739Abstract: Computer-implemented methods are disclosed for determining a flow rate of fluid flow at a target time through a pump, such as a centrifugal pump, the pump being driven by a pump motor. An illustrative method includes, in some aspects: receiving at least one set of previous parameter values including a first previous parameter value indicative of a first operational parameter of the pump motor at a previous time, earlier than the target time, and a second previous parameter value indicative of a second operational parameter of the pump motor at the previous time, and receiving a current set of parameter values including a first current parameter value indicative of the first operational parameter of the pump motor at the target time and a second current parameter value indicative of the second operational parameter of the pump motor at the target time.Type: ApplicationFiled: November 13, 2020Publication date: May 20, 2021Inventors: Peter Elvekjær, Jesper Thørring Jensen, Carsten Christensen
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Patent number: 11002458Abstract: A method carries out an outside temperature-dependent control of at least one thermal power indicative parameter of a supply temperature of a first heating or cooling system in a first building (H). The control is carried out on the basis of the at least one thermal power indicative parameter. The at least one thermal power indicative parameter is indicative of the heat consumption or of the cooling power of at least one second heating or cooling system of a second building (H?, H?, H??), located at a distance from the first building, and is received via a data network (1), in particular, via the Internet. An arrangement is provided for controlling a first heating or cooling system of a first building, wherein the arrangement is adapted to carry out the method mentioned above. A server is further provided that is adapted to receive at least one thermal power indicative parameter.Type: GrantFiled: February 14, 2018Date of Patent: May 11, 2021Assignee: GRUNDFOS HOLDING A/SInventors: Casper Hillerup Lyhne, Peter Elvekjær
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Patent number: 10823183Abstract: A centrifugal pump includes at least one pump stage (14). This pump stage (14) includes an impeller (18) which is mounted rotationally fixed on a pump shaft (26). Apart from the pump stage (14), the centrifugal pump is equipped with a turbine wheel (32) which is arranged on the pump shaft (26), without a movement coupling to the pump shaft, in the delivery flow of the centrifugal pump. This turbine wheel (32) forms a transducer of a flow measuring device. A blading of the turbine wheel (32) is such that a torque exerted by the delivery flow onto the turbine wheel (32?) is directed counter to a torque exerted via the pump shaft (26) onto the impeller (18).Type: GrantFiled: December 20, 2016Date of Patent: November 3, 2020Assignee: GRUNDFOS HOLDING A/SInventors: Erik Bundesen Svarre, Jan Carøe Aarestrup, Peter Elvekjær, Flemming Munk
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Publication number: 20190376714Abstract: A method carries out an outside temperature-dependent control of at least one thermal power indicative parameter of a supply temperature of a first heating or cooling system in a first building (H). The control is carried out on the basis of the at least one thermal power indicative parameter. The at least one thermal power indicative parameter is indicative of the heat consumption or of the cooling power of at least one second heating or cooling system of a second building (H?, H?, H??), located at a distance from the first building, and is received via a data network (1), in particular, via the Internet. An arrangement is provided for controlling a first heating or cooling system of a first building, wherein the arrangement is adapted to carry out the method mentioned above. A server is further provided that is adapted to receive at least one thermal power indicative parameter.Type: ApplicationFiled: February 14, 2018Publication date: December 12, 2019Inventors: Casper HILLERUP LYHNE, Peter ELVEKJÆR
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Publication number: 20170175749Abstract: A centrifugal pump includes at least one pump stage (14). This pump stage (14) includes an impeller (18) which is mounted rotationally fixed on a pump shaft (26). Apart from the pump stage (14), the centrifugal pump is equipped with a turbine wheel (32) which is arranged on the pump shaft (26), without a movement coupling to the pump shaft, in the delivery flow of the centrifugal pump. This turbine wheel (32) forms a transducer of a flow measuring device. A blading of the turbine wheel (32) is such that a torque exerted by the delivery flow onto the turbine wheel (32?) is directed counter to a torque exerted via the pump shaft (26) onto the impeller (18).Type: ApplicationFiled: December 20, 2016Publication date: June 22, 2017Inventors: Erik Bundesen SVARRE, Jan Carøe AARESTRUP, Peter ELVEKJÆR, Flemming MUNK
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Patent number: 5941695Abstract: A submersible motor for driving a centrifugal pump. The motor includes a rotor space filled with a fluid and the rotor space on the pump side is sealed by way of a sealing formation penetrated by the motor shaft which carries the rotor of the motor. In the rotor space between the sealing formation and the rotor there is provided a stationary separating wall, letting through the motor shaft, for forming a smoothing space in front of the sealing formation.Type: GrantFiled: May 23, 1997Date of Patent: August 24, 1999Assignee: Grundfos a/sInventors: Niels Due Jensen, Tonny Ring Nielsen, Peter Elvekjaer, Aage Bruhn, Henrik Vinter
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Patent number: 5473897Abstract: The object of the invention is to create an internal combustion engine, connected to two exhaust-gas turbochargers, with reduced flow losses and an improved efficiency which is particularly suitable for relatively high boosting. According to the invention this is achieved by virtue of the fact that in an apparatus in accordance with the preamble of claim 1, the two exhaust-gas turbochargers (1,1') are arranged offset sideways relative to one another. The diffuser outlets (5,5') of the radial turbines (2,2') are arranged point-symmetrically with respect to the center (8) of the central wall (6). The lateral spacing of the axes (9,9') of the radial turbines (2,2') from the wall (10,10') of the turbine outflow casing (3) on the outflow side (11,11') of the radial turbines (2,2') is designed so as to be greater than their lateral spacing from the other wall (12,12') in each case.Type: GrantFiled: February 28, 1995Date of Patent: December 12, 1995Assignee: ABB Management AGInventor: Peter Elvekjaer
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Patent number: 5465482Abstract: A method for matching the radial turbines of turbochargers, to the respective internal combustion engine, includes managing with a relatively small expenditure of material and labor time and with low costs. In accordance with the method this is achieved by modifying exclusively gas outlet end components of the radial turbine (1). For this purpose, the vanes (5) of the rotor (6) are first shortened and the flow duct (7) between the hub (8) of the rotor (6) and the gas outlet flange (9) is then correspondingly narrowed. This takes place by the insertion of a different, correspondingly enlarged gas outlet flange (9). For this purpose, the gas outlet flange (9) is fastened to the gas inlet casing (2) so that it is easily releasable.Type: GrantFiled: June 13, 1994Date of Patent: November 14, 1995Assignee: ABB Management AGInventors: Peter Elvekjaer, Urs Gribi
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Patent number: 5342170Abstract: An axial-flow turbine has at least one row of bowed guide vanes (7) and at least one row of rotor blades. The bowing of the guide vanes (7) over the vane height is selected at right angles to the chord and is directed towards the pressure side of the respectively adjacent guide vane in the peripheral direction. The guide vanes are tapered in their radial extent. Secondary losses, which occur due to the deflection of the boundary layers in the guide vanes, are reduced by this measure.Type: GrantFiled: June 29, 1993Date of Patent: August 30, 1994Assignee: Asea Brown Boveri Ltd.Inventors: Peter Elvekjaer, Walter Schreiber