Patents by Inventor Stefan Petersen
Stefan Petersen 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: 12018864Abstract: The invention relates to a method for operating a sorption system (1), the sorption system comprising the following: a cooling fluid circuit (8), which has a cooling fluid; a process medium circuit (6), which has a refrigerant and a solvent; an absorber (3), which is connected to the cooling fluid circuit (8) and to the process medium circuit (6); a condenser (5), which is connected to the cooling fluid circuit (8) and to the process medium circuit (6); and a control device. During operation of the sorption system (1), the cooling fluid is fed to the absorber (3) and to the condenser (5), and a feed of the cooling fluid to the absorber (3) and a feed of the cooling fluid to the condenser (5) are controlled differently from each other by means of the control device. The invention further relates to an arrangement for a sorption system (1) and to a sorpotion system (1).Type: GrantFiled: December 3, 2020Date of Patent: June 25, 2024Assignee: TECHNISCHE UNIVERSITÄT BERLINInventor: Stefan Petersen
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Publication number: 20230041044Abstract: The invention relates to a method for operating a sorption system (1), the sorption system comprising the following: a cooling fluid circuit (8), which has a cooling fluid; a process medium circuit (6), which has a refrigerant and a solvent; an absorber (3), which is connected to the cooling fluid circuit (8) and to the process medium circuit (6); a condenser (5), which is connected to the cooling fluid circuit (8) and to the process medium circuit (6); and a control device. During operation of the sorption system (1), the cooling fluid is fed to the absorber (3) and to the condenser (5), and a feed of the cooling fluid to the absorber (3) and a feed of the cooling fluid to the condenser (5) are controlled differently from each other by means of the control device. The invention further relates to an arrangement for a sorption system (1) and to a sorpotion system (1).Type: ApplicationFiled: December 3, 2020Publication date: February 9, 2023Applicant: TECHNISCHE UNIVERSITÄT BERLINInventor: Stefan PETERSEN
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Patent number: 10801782Abstract: The invention relates to a heat exchanger unit having an evaporator device configured for evaporating a heat exchanger operating fluid, and a condenser device for condensing the heat exchanger operating fluid, wherein the evaporator device and the condenser device are fluidically connected to each other in a frontal configuration. The invention further relates to a thermotechnical system having a plurality of heat exchanger units.Type: GrantFiled: March 19, 2010Date of Patent: October 13, 2020Assignee: TECHNISCHE UNIVERSITÄT BERLINInventors: Stefan Petersen, Christian Finck, Martin Mittermaier, Anna Jahnke
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Patent number: 10437134Abstract: A camera housing/lens system comprises a camera housing for a camera and a lens. The camera housing/lens system further comprises a lock for locking the lens in position. The lock includes a stop member joined to the lens or the lens mount, and an elastic element arranged between the stop member and the lens mount or between the stop member and the lens, wherein the elastic element is compressed between the stop member and the lens mount or between the stop member and the lens to lock the lens in position. A gap remains between the stop member and the lens mount or between the stop member and the lens. This “elastic compression” allows the position of the lens to be finely adjusted in relation to the lens mount, without having to release the compression in order to do so.Type: GrantFiled: August 26, 2016Date of Patent: October 8, 2019Assignee: BASLER AGInventors: Andrej Kholopov, Stefan Petersen, Benjamin Hagemann
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Patent number: 10288366Abstract: The application relates to a liquid distributor (1) for supplying a liquid in a pressure-free manner over a surface area, having a distributor trough (2) with a trough base (3) which, for the purpose of discharging liquid, has an arrangement of holes (5), which extends over at least part of the surface of the trough base (3), having an inflow (4), via which a liquid which is to be distributed can be introduced in the distributor trough (2) such that the liquid introduced accumulates on the trough base (3), and having a retaining device with a retaining plate (7), which is arranged opposite the trough base (3) and at a distance apart therefrom, wherein distributing elements (6), which project from the retaining plate (7) in the direction of the trough base (3), each engage through an associated hole of the arrangement of holes (5) in the trough base (3) and are accommodated loosely therein such that the liquid accumulating on the trough base (3) can be discharged through free hole regions (10), which are not aType: GrantFiled: April 2, 2015Date of Patent: May 14, 2019Assignee: TECHNISCHE UNIVERSITATInventors: Stefan Petersen, Wolfgang Lanser, Christian Hennrich, Reinken Henning
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Patent number: 10132532Abstract: The invention relates to a method for operating a cooling system, in which a cooling agent is prepared in a reservoir of an evaporator device (1) of a single- or multi-stage sorption cooling system, a fluid to be cooled is cooled by having a heat exchanger of the evaporator device (1) effect a cooling heat transfer from the fluid to be cooled to the cooling agent for cooling purposes, and the cooling heat transfer causes the cooling agent to at least partially evaporate on the heat exchanger, and the evaporated cooling agent is relayed to a liquefier device (2), wherein the cooling heat transfer is improved by conveying external thermal energy provided by an external heat source (10) to the cooling agent, specifically in addition to and separately from the cooling heat transfer, and thereby initiating bubble formation that supports cooling heat transfer in the cooling agent in the reservoir, specifically by inducing bubble formation in conjunction with supplying the external thermal energy or intensifying bubType: GrantFiled: September 4, 2012Date of Patent: November 20, 2018Assignee: TECHNISCHE UNIVERSITAET BERLINInventors: Stefan Petersen, Walther Hüls Güido
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Publication number: 20180246395Abstract: The present invention relates to a camera housing/lens system comprising a camera housing for a camera and a lens. The camera housing/lens system further comprises a lock for locking the lens in position. According to the invention, the lock includes a stop member joined to the lens or the lens mount, and an elastic element arranged between the stop member and the lens mount or between the stop member and the lens, wherein the elastic element is compressed between the stop member and the lens mount or between the stop member and the lens to lock the lens in position. A gap remains between the stop member and the lens mount or between the stop member and the lens. This “elastic compression” allows the position of the lens to be finely adjusted in relation to the lens mount, without having to release the compression in order to do so.Type: ApplicationFiled: August 26, 2016Publication date: August 30, 2018Applicant: BASLER AGInventors: Andrej Kholopov, Stefan Petersen, Benjamin Hagemann
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Publication number: 20170030663Abstract: The application relates to a liquid distributor (1) for supplying a liquid in a pressure-free manner over a surface area, having a distributor trough (2) with a trough base (3) which, for the purpose of discharging liquid, has an arrangement of holes (5), which extends over at least part of the surface of the trough base (3), having an inflow (4), via which a liquid which is to be distributed can be introduced in the distributor trough (2) such that the liquid introduced accumulates on the trough base (3), and having a retaining device with a retaining plate (7), which is arranged opposite the trough base (3) and at a distance apart therefrom, wherein distributing elements (6), which project from the retaining plate (7) in the direction of the trough base (3), each engage through an associated hole of the arrangement of holes (5) in the trough base (3) and are accommodated loosely therein such that the liquid accumulating on the trough base (3) can be discharged through free hole regions (10), which are not aType: ApplicationFiled: April 2, 2015Publication date: February 2, 2017Inventors: Stefan PETERSEN, Wolfgang LANSER, Christian HENNRICH, Reinken HENNING
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Publication number: 20140326006Abstract: The invention relates to a method for operating a cooling system, in which a cooling agent is prepared in a reservoir of an evaporator device (1) of a single- or multi-stage sorption cooling system, a fluid to be cooled is cooled by having a heat exchanger of the evaporator device (1) effect a cooling heat transfer from the fluid to be cooled to the cooling agent for cooling purposes, and the cooling heat transfer causes the cooling agent to at least partially evaporate on the heat exchanger, and the evaporated cooling agent is relayed to a liquefier device (2), wherein the cooling heat transfer is improved by conveying external thermal energy provided by an external heat source (10) to the cooling agent, specifically in addition to and separately from the cooling heat transfer, and thereby initiating bubble formation that supports cooling heat transfer in the cooling agent in the reservoir, specifically by inducing bubble formation in conjunction with supplying the external thermal energy or intensifying bubType: ApplicationFiled: September 4, 2012Publication date: November 6, 2014Applicant: TECHNISCHE UNIVERSITAET BERLINInventors: Stefan Petersen, Walther Hüls Güido
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Publication number: 20120067713Abstract: The invention relates to a heat exchanger unit having an evaporator device configured for evaporating a heat exchanger operating fluid, and a condenser device for condensing the heat exchanger operating fluid, wherein the evaporator device and the condenser device are fluidically connected to each other in a frontal configuration. The invention further relates to a thermotechnical system having a plurality of heat exchanger units.Type: ApplicationFiled: March 19, 2010Publication date: March 22, 2012Inventors: Stefan Petersen, Christian Finck, Martin Mittermaier, Anna Jahnke
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Publication number: 20090217680Abstract: The invention relates to a method for discharging a gas from a heat pump (1), with an inflow section (9), an outflow section (6), which is at an angle with respect to said inflow section (9), and a suction section (5) being formed in a tube line system, said suction section (5) being connected to the inflow section (9) and the outflow section (6), wherein in the method, a solvent (8) is guided, such that contraction turbulence is generated, from the inflow section (9) into the outflow section (6), the gas to be discharged is absorbed by the solvent (8) as a result of the contraction turbulence and, after flowing out through the outflow section (6), said gas is discharged from the tube line system. The invention also relates to a heat pump (1).Type: ApplicationFiled: July 11, 2006Publication date: September 3, 2009Inventor: Stefan Petersen
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Patent number: 6685203Abstract: An individual wheel suspension for vehicles built on a longitudinal frame and comprises a steering knuckle attachment, which at its lower, outer end is connected to and journalled in a wheel spindle. Also included is a pair of upper and lower torsion rod placed in the longitudinal direction of the vehicle and journalled in the steering knuckle attachment and a transverse section of the frame, to form a parallelogram. A transverse stabilizer bar is connected to the ends of one pair of the above corresponding torsion rod, which ends are facing away from the steering knuckle attachment and positioned on either side of the vehicle. The arrangement is also provided with a first shock absorber, placed between the lower end of the steering spindle attachment and the vehicle frame, as well as an adjustable suspension device, which connects the lower end of the steering spindle attachment and the vehicle frame.Type: GrantFiled: July 22, 2002Date of Patent: February 3, 2004Assignee: Volvo Lastvagner ABInventors: Jan-Olof Bodin, Stefan Petersen, Andreas Lundmark