Patents by Inventor Gerhard Walter
Gerhard Walter 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).
-
Patent number: 11431272Abstract: An energy recovery circuitry for an electric motor with a single phase winding, consisting of two coil sections with central connection, whereby the two coil ends of the coil sections are each connected to ground via a switching element. The task of the invention is therefore, for an electric motor of this type, to ensure, a significantly higher efficiency, a better and defined switching of the coil switching elements, a thermal relief for the switching elements, improved and smoother running, reduced warming of the printed circuit board, improved EMC characteristics, a more robust design of the overall switching, a focused conduction of the losses and an extra protection against any surge impulses from a mains network.Type: GrantFiled: February 6, 2020Date of Patent: August 30, 2022Assignee: BÜHLER MOTOR GMBHInventors: Jens Weiß, Gerhard Walter
-
Publication number: 20200386455Abstract: A refrigeration machine, in particular a cryopump for generating a vacuum, having a compressor for compressing a refrigerant substantially comprising helium and oil. Together with the compressor, an oil separator is arranged downstream in the delivery direction of the coolant. Furthermore, a cooling device in which the refrigeration medium expands. In order to adsorb harmful gases, an adsorption device is arranged upstream of the cooling device in the delivery direction.Type: ApplicationFiled: August 8, 2017Publication date: December 10, 2020Inventors: Bernhard Fischer, Gerhard Walter, Dirk Kalisch, Jennifer Ashcroft
-
Publication number: 20200259442Abstract: An energy recovery circuitry for an electric motor with a single phase winding, consisting of two coil sections with central connection, whereby the two coil ends of the coil sections are each connected to ground via a switching element. The task of the invention is therefore, for an electric motor of this type, to ensure, a significantly higher efficiency, a better and defined switching of the coil switching elements, a thermal relief for the switching elements, improved and smoother running, reduced warming of the printed circuit board, improved EMC characteristics, a more robust design of the overall switching, a focused conduction of the losses and an extra protection against any surge impulses from a mains network.Type: ApplicationFiled: February 6, 2020Publication date: August 13, 2020Applicant: Bühler Motor GmbHInventors: Jens Weiss, Gerhard Walter
-
Patent number: 9941692Abstract: An overvoltage protection circuit for a first subsystem of a multivoltage vehicle electrical system, in which the first subsystem having a first vehicle electrical system voltage, a second subsystem having a second vehicle electrical system voltage, and an electric machine for supplying the second subsystem. The first system voltage is less than the second system voltage. The overvoltage protection circuit includes a first ground connection for connecting a shared ground potential of the first subsystem, the second subsystem, and the electric machine, an additional second ground connection for connecting a reference ground potential, and a control connection for controlling the electric machine.Type: GrantFiled: June 27, 2014Date of Patent: April 10, 2018Assignees: ROBERT BOSCH GMBH, SEG AUTOMOTIVE GERMANY GMBHInventor: Gerhard Walter
-
Publication number: 20170320393Abstract: The invention relates to a method (100) for converting and/or storing electric energy E obtained from mechanical energy M in a vehicle comprising a motor (1), in particular a motor vehicle. In the method, a) mechanical energy M obtained when braking and/or during an overrun operation of the vehicle is converted into electric energy E in a first step using a generator (2), b) the electric energy is stored in an intermediate energy store (3) in a second step, c) the stored electric energy E is discharged to an electrolysis module (4) in a third step, d) the module converts the electric energy E into chemical energy C in a fourth step at least by splitting water (H2O) into hydrogen (H2) and oxygen (O2), and e) the chemical energy is conducted into a gas tank (5) of the vehicle for temporary storage and/or is supplied to the motor (1) and/or a fuel cell (10) of the vehicle in a fifth step.Type: ApplicationFiled: September 23, 2015Publication date: November 9, 2017Inventors: Guenter Reitemann, Gerhard Walter
-
Patent number: 9758252Abstract: A method for reducing a turbine clearance gap between a plurality of rotor blades of a turbine engine and a shroud of the turbine engine is provided. The method includes determining that an airplane is in a first flight condition, and adjusting the turbine clearance gap to a first clearance gap distance associated with the first flight condition. The method also includes determining a demand for a second flight condition, and adjusting an engine responsiveness to a first engine responsiveness for a first predetermined change in a power parameter of the engine. The method further includes reducing the engine responsiveness from the first engine responsiveness level to a second engine responsiveness level for a second predetermined change in the power parameter of the engine, and closing a clearance control valve associated with the shroud during the second predetermined change in the power parameter of the engine.Type: GrantFiled: March 22, 2016Date of Patent: September 12, 2017Assignee: General Electric CompanyInventors: Sridhar Adibhatla, Steven Edward Nolte, Gerhard Walter Moeller, Christopher Timothy Gallagher, John William Hanify, Grant Alan Ingram
-
Patent number: 9496800Abstract: A method for activating a rectifier having active switching elements in the event of a load dump, the active switching elements being activated during the voltage clamping in such a way that the clamp voltage in at least one switching branch complies with a signal form predefined as a function of time within at least one half-period of the current to be rectified.Type: GrantFiled: January 2, 2012Date of Patent: November 15, 2016Assignee: ROBERT BOSCH GMBHInventors: Paul Mehringer, Uwe Schiller, Holger Heinisch, Markus Baur, Jochen Kurfiss, Gerhard Walter
-
Publication number: 20160311546Abstract: A method for reducing a turbine clearance gap between a plurality of rotor blades of a turbine engine and a shroud of the turbine engine is provided. The method includes determining that an airplane is in a first flight condition, and adjusting the turbine clearance gap to a first clearance gap distance associated with the first flight condition. The method also includes determining a demand for a second flight condition, and adjusting an engine responsiveness to a first engine responsiveness for a first predetermined change in a power parameter of the engine. The method further includes reducing the engine responsiveness from the first engine responsiveness level to a second engine responsiveness level for a second predetermined change in the power parameter of the engine, and closing a clearance control valve associated with the shroud during the second predetermined change in the power parameter of the engine.Type: ApplicationFiled: March 22, 2016Publication date: October 27, 2016Inventors: Sridhar Adibhatla, Steven Edward Nolte, Gerhard Walter Moeller, Christopher Timothy Gallagher, John William Hanify, Grant Alan Ingram
-
Publication number: 20160156179Abstract: An overvoltage protection circuit for a first subsystem of a multivoltage vehicle electrical system, in which the first subsystem having a first vehicle electrical system voltage, a second subsystem having a second vehicle electrical system voltage, and an electric machine for supplying the second subsystem. The first system voltage is less than the second system voltage. The overvoltage protection circuit includes a first ground connection for connecting a shared ground potential of the first subsystem, the second subsystem, and the electric machine, an additional second ground connection for connecting a reference ground potential, and a control connection for controlling the electric machine.Type: ApplicationFiled: June 27, 2014Publication date: June 2, 2016Inventor: Gerhard WALTER
-
Publication number: 20160111972Abstract: A rectifier bridge circuit is described for rectifying the phase voltage generated by a generator, including a positive half-bridge having multiple rectifier elements and a negative half-bridge having multiple rectifier elements. The rectifier elements each have a controllable switch having a diode connected in parallel. A control circuit is provided for switching the switches on and off. The switch-on time tswitch on setpoint and/or the switch-off time tswitch off setpoint of the switch is/are computed based on a characteristic map or a mathematical function.Type: ApplicationFiled: October 26, 2015Publication date: April 21, 2016Inventors: Gert WOLF, Paul MEHRINGER, Kurt REUTLINGER, Gerhard WALTER
-
Patent number: 9203327Abstract: A rectifier bridge circuit is described for rectifying the phase voltage generated by a generator, including a positive half-bridge having multiple rectifier elements and a negative half-bridge having multiple rectifier elements. The rectifier elements each have a controllable switch having a diode connected in parallel. A control circuit is provided for switching the switches on and off. The switch-on time tswitch on setpoint and/or the switch-off time tswitch off setpoint of the switch is/are computed based on a characteristic map or a mathematical function.Type: GrantFiled: September 25, 2009Date of Patent: December 1, 2015Assignee: ROBERT BOSCH GMBHInventors: Gert Wolf, Paul Mehringer, Kurt Reutlinger, Gerhard Walter
-
Patent number: 8977413Abstract: Methods of illustrating one or more derated takeoffs of an aircraft on a runway where such illustrations are on a flight display in a cockpit of the aircraft and are based on various information and may allow pilots to make more accurate decisions related to derated takeoffs and full thrust takeoffs of the aircraft.Type: GrantFiled: March 7, 2012Date of Patent: March 10, 2015Assignee: GE Aviation Systems LLCInventors: Timothy Donal Paul Burns, Aaron James Gannon, Dashiell Matthews Kolbe, Darrin Walter Wargacki, Gerhard Walter Moeller
-
Patent number: 8920143Abstract: An electronically commutated DC motor for a liquid pump, comprising a pump housing, a suction connection and a pressure connection, a substantially disk-shaped pump rotor mounted rotatably in the pump housing, the rotor comprising an impeller having a plurality of pump vanes and a permanent magnet, a partition separating a pump space from a dry space, wherein the partition is disposed in an axial gap between the pump rotor and a plurality of axially parallel oriented stator poles of the DC motor, which are each provided with an insulating body and a stator winding, the stator poles adjoin a stator yoke, which is connected to a metallic heat-conducting body, and the stator containing the stator poles, the stator windings, the stator yoke and the heat-conducting body is disposed in a motor housing made of plastic material.Type: GrantFiled: August 16, 2011Date of Patent: December 30, 2014Assignee: Buhler Motor GmbHInventors: Thomas Stolpe, Helmut Kellermann, Olai Ihle, Gerhard Walter, Klaus Weiske
-
Patent number: 8744683Abstract: The invention relates to a control device for regulating or controlling a servo-drive unit in a steering system of a vehicle. In order to determine the initial zero position of the steering shaft the value of at least one vehicle state variable is taken into consideration as an input signal, said variable not being a steering angle variable. The steering shaft is in the initial zero position if said vehicle state variable within a defined range of values.Type: GrantFiled: October 2, 2007Date of Patent: June 3, 2014Assignee: Robert Bosch GmbHInventors: Torsten Henke, Tobias Blesch, Pascal Hiry, Gerhard Walter
-
Publication number: 20140104908Abstract: A method for activating a rectifier having active switching elements in the event of a load dump, the active switching elements being activated during the voltage clamping in such a way that the clamp voltage in at least one switching branch complies with a signal form predefined as a function of time within at least one half-period of the current to be rectified.Type: ApplicationFiled: January 2, 2012Publication date: April 17, 2014Inventors: Paul Mehringer, Uwe Schiller, Holger Heinisch, Markus Baur, Jochen Kurfiss, Gerhard Walter
-
Publication number: 20140058644Abstract: A method for reducing a turbine clearance between a plurality of rotor blades of a turbine engine and a shroud of the turbine engine is provided. Said method includes determining, with a flight operation controller, that an airplane is in a first flight condition, wherein the first flight condition is associated with a first turbine clearance and a first engine responsiveness level, determining, with the flight operation controller, that the airplane is in a second flight condition, adjusting an engine responsiveness level from the first engine responsiveness level to a second engine responsiveness level based on determining the airplane is in the second flight condition, and adjusting the turbine clearance from the first turbine clearance to a second turbine clearance based on the engine responsiveness level.Type: ApplicationFiled: July 30, 2013Publication date: February 27, 2014Applicant: General Electric CompanyInventors: Sridhar Adibhatla, Steven Edward Nolte, Gerhard Walter Moeller, Christopher Timothy Gallagher, John William Hanify, Grant Alan Ingram
-
Publication number: 20130238173Abstract: Methods of illustrating one or more derated takeoffs of an aircraft on a runway where such illustrations are on a flight display in a cockpit of the aircraft and are based on various information and may allow pilots to make more accurate decisions related to derated takeoffs and full thrust takeoffs of the aircraft.Type: ApplicationFiled: March 7, 2012Publication date: September 12, 2013Applicant: GE AVIATION SYSTEMS LLCInventors: Timothy Donal Paul Burns, Aaron James Gannon, Dashiell Matthews Kolbe, Darrin Walter Wargacki, Gerhard Walter Moeller
-
Publication number: 20120126546Abstract: The aim of the invention is to produce an electricity-producing unit that enables a motor vehicle of any conceivable design to be equipped with said invention and thus to produce a motor vehicle that is driven purely by one or more electric motors, wherein the electricity-generating unit works pollutant-free during operation, is environmentally friendly, generates little noise, and has a very small design. Said aim is achieved by a drive system comprising a turbine (1/1), a differential gear (1/2), a generator (1/3), a control unit (1/4), and a starter (1/5), wherein only electric motors are provided to drive the wheels of the motor vehicle.Type: ApplicationFiled: August 4, 2009Publication date: May 24, 2012Inventor: Gerhard Walter Auer
-
Publication number: 20120045351Abstract: An electronically commutated DC motor for a liquid pump, comprising a pump housing, a suction connection and a pressure connection, a substantially disk-shaped pump rotor mounted rotatably in the pump housing, the rotor comprising an impeller having a plurality of pump vanes and a permanent magnet, a partition separating a pump space from a dry space, wherein the partition is disposed in an axial gap between the pump rotor and a plurality of axially parallel oriented stator poles of the DC motor, which are each provided with an insulating body and a stator winding, the stator poles adjoin a stator yoke, which is connected to a metallic heat-conducting body, and the stator containing the stator poles, the stator windings, the stator yoke and the heat-conducting body is disposed in a motor housing made of plastic material.Type: ApplicationFiled: August 16, 2011Publication date: February 23, 2012Inventors: Thomas Stolpe, Helmut Kellermann, Olai Ihle, Gerhard Walter, Klaus Weiske
-
Publication number: 20110235381Abstract: A rectifier bridge circuit is described for rectifying the phase voltage generated by a generator, including a positive half-bridge having multiple rectifier elements and a negative half-bridge having multiple rectifier elements. The rectifier elements each have a controllable switch having a diode connected in parallel. A control circuit is provided for switching the switches on and off. The switch-on time tswitch on setpoint and/or the switch-off time tswitch off setpoint of the switch is/are computed based on a characteristic map or a mathematical function.Type: ApplicationFiled: September 25, 2009Publication date: September 29, 2011Inventors: Gert Wolf, Paul Mehringer, Kurt Reutlinger, Gerhard Walter