HIGH VOLTAGE POWER CONVERTERA power electronics converter includes a multi-layer planar carrier substrate and a converter commutation cell including a power circuit. The power circuit includes at least one power semiconductor sw…DRIVE·Aug 15·1 min readFollowB60L15/007Rolls-Royce Deutschland Ltd & Co KG
POWER SUPPLY FOR AN AIRCRAFTA power supply for an aircraft comprises: an input configured to receive electrical power from an energy source, an output for supplying electrical power, a plurality of converters, each of which bein…DRIVE·Jul 25·1 min readFollowH02J1/10Rolls-Royce Deutschland Ltd & Co KG
FUEL NOZZLE HAVING DIFFERENT FIRST AND SECOND DISCHARGE ORIFICES FOR PROVIDING A HYDROGEN-AIR MIXTUREThe proposed solution relates to a fuel nozzle for the injection of hydrogen into a combustion chamber of an engine, the fuel nozzle including, for provision of a hydrogen-air mixture, a nozzle head h…DRIVE·Jun 20·1 min readFollowF02M61/184Rolls-Royce Deutschland Ltd & Co KG
POWER ELECTRONICS HEAT REMOVALA power electronics converter includes a multi-layer planar carrier substrate having a plurality of electrically conductive layers, at least one electrical connection, and a converter commutation cell…DRIVE·Nov 30·1 min readFollowH01L25/16Rolls-Royce Deutschland Ltd & Co KG
HIGH VOLTAGE POWER CONVERTERA power electronics converter may include a converter commutation cell having a power circuit and a gate driver circuit. The power circuit includes at least one power semiconductor switching element a…DRIVE·Nov 30·1 min readFollowB60L15/007Rolls-Royce Deutschland Ltd & Co KG
POWER ELECTRONICS CONVERTER WITH STACKED CARRIER SUBSTRATESA power electronics converter may include: a first multi-layer planar carrier substrate having one or more electrically conductive layers; a second multi-layer planar carrier substrate having one or m…DRIVE·Nov 30·1 min readFollowH02M7/003Rolls-Royce Deutschland Ltd & Co KG
ELECTRIC DRIVE SYSTEMAn electric drive system includes at least one electric drive unit. The at least one electric drive unit includes an electric motor and inverters. The inverters are each supplied with DC voltage via a…DRIVE·Oct 27·2 min readFollowH02J9/062Rolls-Royce Deutschland Ltd & Co KG
DETECTING A DIRECTION OF MOTOR ROTATION IN SINGLE-PHASE CONVERTERSAn arrangement for detecting a direction of rotation of a multi-phase electric motor includes a plurality of single-phase converters. Each single-phase converter of the plurality of single-phase conve…DRIVE·Jul 28·1 min readFollowH02P6/186Rolls-Royce Deutschland Ltd & Co KG
Method and Device for Detecting a Thermal Runaway in a Battery ModuleA device for detecting a thermal runaway of a battery module with a number of cells includes a current acquisition module that is configured to capture a set of currents, and a temperature acquisition…DRIVE·Jan 20·1 min readFollowH01M10/486Rolls-Royce Deutschland Ltd & Co KG
AIRCRAFT DRIVE SYSTEMThe disclosure relates to a hybrid-electrical drive system for an aircraft having two subsystems that are largely independent of each other. A stator winding of a common electrical machine is assigned…DRIVE·Sep 9·1 min readFollowH02P29/028Rolls-Royce Deutschland Ltd & Co KG
TORQUE LIMITING DEVICE IN A CONNECTION BETWEEN A GEARBOX AND A STATIONARY STRUCTURE IN A GAS TURBINE ENGINE AND A GAS TURBINE ENGINEThe invention relates to a torque limiting device in a torque bearing connecting structure between a gearbox and a stationary structure in a gas turbine engine, wherein the torque limiting device comp…DRIVE·Sep 2·1 min readFollowF01D21/045Rolls-Royce Deutschland Ltd & Co KG
METHOD AND APPARATUS FOR ESTIMATING A STATE OF CHARGE OF A BATTERYA state of charge of a battery is estimated by a battery model specific to the battery. The battery model provides a section-wise defined correlation of terminal voltage values depending on state of c…DRIVE·Jul 15·2 min readFollowG01R31/367Rolls-Royce Deutschland Ltd & Co KG
EQUIPMENT HEALTH MONITORING METHOD AND SYSTEM AND ENGINEAn Equipment Health Monitoring method for an engine and an Equipment Health Monitoring system for performing the method are provided. At least some of the following units are used: an Engine Simulatio…DRIVE·Jun 23·1 min readFollowF02D41/22Rolls-Royce Deutschland Ltd & Co KG
