Patents by Inventor Kai Weeber
Kai Weeber 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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Publication number: 20230366514Abstract: A method for operating a drive unit operated with gaseous fuel. The gaseous fuel is provided under high pressure in a plurality of pressure tanks that can be connected via a supply line and with a metering valve via which the gaseous fuel can be dispensed to the drive unit. One of the pressure tanks is designed as a high-load pressure tank which is only connected to the supply line when the drive unit is under high load, the pressure tanks in which a lower gas pressure prevails than in the high-load pressure tank simultaneously being disconnected from the supply line.Type: ApplicationFiled: November 18, 2021Publication date: November 16, 2023Inventors: Helerson Kemmer, Kai Weeber, Martin SCHULTE MOENTING
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Patent number: 11721817Abstract: The invention relates to a fuel cell (1) for a fuel cell stack (11), comprising a polymer membrane (2) which serves as an electrolyte and has respectively on both sides a catalyst layer (3, 4) for forming an anode (3) on the one side and a cathode (4) on the other side, a gas diffusion layer (5) and a bipolar plate (6) being applied to each of the two analyst layers (3, 4). According to the invention, a short-circuit element (7) is applied, preferably printed, to at least one bipolar plate (6), namely on the side facing away from the gas diffusion layer (5). The invention also relates to a fuel cell stack (11) and to a method for operating a fuel cell stack (11).Type: GrantFiled: November 5, 2020Date of Patent: August 8, 2023Assignee: Robert Bosch GmbHInventors: Helerson Kemmer, Kai Weeber
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Publication number: 20230027847Abstract: The invention relates to a fuel cell (1) for a fuel cell stack (11), comprising a polymer membrane (2) which serves as an electrolyte and has respectively on both sides a catalyst layer (3, 4) for forming an anode (3) on the one side and a cathode (4) on the other side, a gas diffusion layer (5) and a bipolar plate (6) being applied to each of the two analyst layers (3, 4). According to the invention, a short-circuit element (7) is applied, preferably printed, to at least one bipolar plate (6). namely on the side facing away from the gas diffusion layer (5). The invention also relates to a fuel cell stack (11) and to a inetliod for operating a fuel cell stack (11).Type: ApplicationFiled: November 5, 2020Publication date: January 26, 2023Inventors: Helerson Kemmer, Kai Weeber
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Patent number: 11228045Abstract: The invention relates to a distribution structure (10) for providing at least one reaction gas, in particular a gas mixture containing oxygen (O2), for a fuel cell (100) or an electrolyser, having a first structure element (11) and a second structure element (12), wherein the first structure element (11) and the second structure element (12) are designed and arranged with respect to one another such that: a distribution area (15) for the reaction gas is formed between the first structure element (11) and the second structure element (12); a plurality of feed channels (16) branch off from the distribution area (15) and are orientated substantially perpendicular to the distribution area (15); and a plurality of discharge channels (17) are formed below the second structure element (12) and are orientated parallel to the distribution area (15).Type: GrantFiled: June 20, 2018Date of Patent: January 18, 2022Assignee: Robert Bosch GmbHInventors: Helerson Kemmer, Jan Hendrik Ohs, Kai Weeber, Stefan Schoenbauer, Ulrich Berner
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Publication number: 20210075028Abstract: The invention relates to a distribution structure (10) for providing at least one reaction gas, in particular a gas mixture containing oxygen (O2), for a fuel cell (100) or an electrolyser, having a first structure element (11) and a second structure element (12), wherein the first structure element (11) and the second structure element (12) are designed and arranged with respect to one another such that: a distribution area (15) for the reaction gas is formed between the first structure element (11) and the second structure element (12); a plurality of feed channels (16) branch off from the distribution area (15) and are orientated substantially perpendicular to the distribution area (15); and a plurality of discharge channels (17) are formed below the second structure element (12) and are orientated parallel to the distribution area (15).Type: ApplicationFiled: June 20, 2018Publication date: March 11, 2021Applicant: Robert Bosch GmbHInventors: Helerson KEMMER, Jan Hendrik OHS, Kai WEEBER, Stefan SCHOENBAUER, Ulrich BERNER
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Patent number: 10497945Abstract: A process (30) for producing a distributor plate (1) for an electrochemical system, wherein the distributor plate (1) has at least one metal foil (2) having a first surface (3) and a second surface (4) and the process (30) has the following process steps: a) pretreatment (31) of the metal foil (2); b) mask formation (32) at least on the first surface (3) of the pretreated metal foil (2); c) structure formation (33) at least on the first surface (3) of the metal foil (2) provided with the mask (10), as a result of which a first fluid distributor structure (5) is formed; d) mask removal (36).Type: GrantFiled: May 1, 2017Date of Patent: December 3, 2019Assignee: Robert Bosch GmbHInventors: Kai Weeber, Silvan Hippchen
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Publication number: 20170317359Abstract: A process (30) for producing a distributor plate (1) for an electrochemical system, wherein the distributor plate (1) has at least one metal foil (2) having a first surface (3) and a second surface (4) and the process (30) has the following process steps: a) pretreatment (31) of the metal foil (2); b) mask formation (32) at least on the first surface (3) of the pretreated metal foil (2); c) structure formation (33) at least on the first surface (3) of the metal foil (2) provided with the mask (10), as a result of which a first fluid distributor structure (5) is formed; d) mask removal (36).Type: ApplicationFiled: May 1, 2017Publication date: November 2, 2017Inventors: Kai Weeber, Silvan Hippchen
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Publication number: 20160372775Abstract: The disclosure relates to a method for temporarily storing the electric energy of an energy supply system. The method comprises the steps: receiving the electric energy via an interface to the energy supply system; carrying out electrolysis in order to convert the electric energy into chemical reaction energy and an oxidant; and storing the chemical reaction energy in a fluid reservoir.Type: ApplicationFiled: December 9, 2014Publication date: December 22, 2016Applicant: Robert Bosch GMBHInventors: Dietmar Steiner, Kai Weeber, Annika Utz
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Publication number: 20150144501Abstract: A method for conditioning hydrogen includes positioning hydrogen on a suction side of an electrochemical compressor. The hydrogen includes at most a fractional amount of an extraneous species. The electrochemical compressor includes a first electrode on a suction side and a second electrode on a pressure side and is configured to apply an electrical potential between the first and second electrodes. The method further includes transporting ions of the hydrogen through a membrane of the electrochemical compressor via the electrical potential in order to increase a hydrogen partial pressure on the pressure side of the electrochemical compressor and such that the extraneous species remains on the suction side of the electrochemical compressor.Type: ApplicationFiled: November 13, 2014Publication date: May 28, 2015Inventors: Annika Utz, Kai Weeber, Dietmar Steiner
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Patent number: 8649937Abstract: An energy absorber for a vehicle is described, which includes a sensor integrated into the energy absorber, which is designed to detect an impact magnitude acting on the energy absorber and to provide information about the impact magnitude. Furthermore, the energy absorber includes at least one setting element, which is designed to set a stiffness of the energy absorber in response to the information about the impact magnitude.Type: GrantFiled: July 8, 2010Date of Patent: February 11, 2014Assignee: Robert Bosch GmbHInventors: Heiko Freienstein, Kai Weeber, Markus Koenning
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Publication number: 20120197489Abstract: An energy absorber for a vehicle is described, which includes a sensor integrated into the energy absorber, which is designed to detect an impact magnitude acting on the energy absorber and to provide information about the impact magnitude. Furthermore, the energy absorber includes at least one setting element, which is designed to set a stiffness of the energy absorber in response to the information about the impact magnitude.Type: ApplicationFiled: July 8, 2010Publication date: August 2, 2012Inventors: Heiko Freienstein, Kai Weeber, Markus Koenning
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Patent number: 7249809Abstract: In a method and a device for monitoring a brake system, e.g., a wheel pressure sensor suite of a brake system of a motor vehicle, the fault detection is implemented on the basis of a differential threshold being exceeded by a signal that is representative for the difference of the brake pressures at the individual wheel brakes of a wheel axle. In the process, the differential threshold is set as a function of the averaged rate of increase of the individual pressures at the wheel brakes. Fault detection is carried out on the basis of a model, which takes the instantaneous operating state of the brake system into account.Type: GrantFiled: February 20, 2003Date of Patent: July 31, 2007Assignee: Robert Bosch GmbHInventors: Kai Weeber, Michael Knoop, Klaus-Dieter Leimbach
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Patent number: 7168520Abstract: A servo-assisted steering system for a motor vehicle, in which the steering system includes a steering wheel for presetting a desired steering angle for the wheels of the motor vehicle, a driving-dynamics means for superimposing a correction angle on the steering angle, the correction angle being determined with a view toward increasing the driving stability and/or the driving comfort of the motor vehicle, and a servo drive. To keep the efficiency of the driving-dynamics means nearly constant over the entire road-speed range of the vehicle, the servo drive is implemented as a variable torque assistance system, the degree of torque assistance being dependent on the road speed of the vehicle and on at least one variable of the driving-dynamics means that characterizes the correction angle.Type: GrantFiled: March 10, 2001Date of Patent: January 30, 2007Assignee: Robert Bosch GmbHInventors: Kai Weeber, Rainer Muenz
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Publication number: 20050253452Abstract: In a method and a device for monitoring a brake system, e.g., a wheel pressure sensor suite of a brake system of a motor vehicle, the fault detection is implemented on the basis of a differential threshold being exceeded by a signal that is representative for the difference of the brake pressures at the individual wheel brakes of a wheel axle. In the process, the differential threshold is set as a function of the averaged rate of increase of the individual pressures at the wheel brakes. Fault detection is carried out on the basis of a model, which takes the instantaneous operating state of the brake system into account.Type: ApplicationFiled: February 20, 2003Publication date: November 17, 2005Inventors: Kai Weeber, Michael Knoop, Klaus-Dieter Leimbach
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Publication number: 20030150665Abstract: The invention concerns a servo-assisted steering system (1) for a motor vehicle, in which the steering system (1) comprises a steering wheel (2) for presetting a desired steering angle for the wheels (3) of the motor vehicle, driving-dynamics means (4) for superimposing a correction angle on the steering angle, said correction angle being determined with a view toward increasing the driving stability and/or the driving comfort of the motor vehicle, and a servo drive (6). To keep the efficiency of the driving-dynamics means (4) nearly constant over the entire road-speed range of the vehicle, it is proposed that the servo drive (6) be implemented as a variable torque assistance system, the degree of torque assistance (M) being dependent on the road speed (V) of the vehicle and on at least one variable of the driving-dynamics means (4) that characterizes the correction angle.Type: ApplicationFiled: February 10, 2003Publication date: August 14, 2003Inventors: Kai Weeber, Rainer Muenz