Patents Assigned to Rolls-Royce Deutschland Ltd & Co KG
  • Planetary gearing and planet pin for a planetary gearing
    Patent number: 10816087
    Abstract: A planetary gearing includes a sun gear; a plurality of planet gears, a ring gear; and a plurality of planet pins, wherein respectively one planet pin is arranged inside a planet gear, and the planet pin and the planet gear form a lubricated journal bearing. The planet pin includes an axial bore and an inner surface that comprises an axially forward end and an axially rearward end. The inner diameter of the axial bore of the planet pin varies between the axially forward end and the axially rearward end of the inner surface and has a maximum at least at one axial end. The planet pins respectively form a crowning at their abutment surface such that their outer diameter decreases from a maximum outer diameter towards at least an axial end of the abutment surface, and has a minimum at the axial end.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: October 27, 2020
    Assignees: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG, ROLLS-ROYCE PLC
    Inventors: Michael Nique, Christopher Campbell, Mark Spruce
  • Helical winding with more uniform field utilization
    Patent number: 10819177
    Abstract: Various embodiments include a stator for an AC electric machine with a number of magnetic poles comprising: a central axis; and a stator winding with a plurality of conductor turns. The individual conductor turns are grouped into a total of n electrical strands. The individual conductor turns of a respective electrical strand define a first conductor branch and a second conductor branch. The first conductor branch and the second conductor branch are arranged helically around the central axis over at least half of their respective lengths. The helically arranged conductor branches each have a pitch greater than a product of an axial length of the helical conductor branches and the number of magnetic poles.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: October 27, 2020
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventors: Michael Frank, Jörn Grundmann, Wolfgang Nick, Mercedes Herranz Gracia
  • Nozzle assembly for a combustion chamber of an engine
    Patent number: 10808557
    Abstract: A nozzle assembly group for a combustion chamber of an engine, with multiple nozzles for introducing fuel into the combustion chamber that are arranged next to each other, wherein each nozzle has a nozzle outlet opening and a fuel channel for conveying fuel in the direction of the nozzle outlet opening. According to the invention, it is provided that at least two different types of nozzles are provided, wherein the nozzles of different types have nozzle outlet openings with an identical cross section, and for predetermining different flow rates of fuel through the fuel channels of the nozzles of different types, a cross section of a fuel channel of one type of nozzle is different from a cross section of a fuel channel of another type of nozzle.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: October 20, 2020
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventors: Carsten Clemen, Thomas Doerr
  • Combustion chamber assembly with burner seal and nozzle as well as guiding flow generating equipment
    Patent number: 10808623
    Abstract: A combustion chamber assembly, with a combustion chamber nozzle for providing a fuel-air mixture at a nozzle exit opening. A nozzle main body includes an inner air guiding channel for conveying air to the exit opening, a fuel guiding channel for conveying fuel to the exit opening that is positioned radially further outwards to the axis than the inner air guiding channel, and a radially outwardly positioned air guiding element for guiding the air and the fuel-air mixture discharged at the exit opening in a radially outwardly oriented outflow direction. A guide flow generation device creates a guide flow of air that radially borders the air and the fuel-air mixture discharged at the exit opening, and defines a maximum outflow angle for the outflow direction with respect to the nozzle longitudinal axis at which the air and fuel-air mixture discharged at the exit opening can flow radially outwards.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: October 20, 2020
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventor: Max Staufer
  • Fuel spray nozzle comprising axially projecting air guiding element for a combustion chamber of a gas turbine engine
    Patent number: 10808935
    Abstract: A combustion chamber assembly group includes a nozzle providing a fuel-air mixture at a nozzle exit opening. An end of a fuel guiding channel is bordered at the nozzle exit opening by a flow-off edge located radially outside, and an air guiding element of an air guiding channel of the nozzle located radially outside projects with respect to this flow-off edge in the axial direction with respect to a nozzle longitudinal axis such that: a reference angle present between the nozzle longitudinal axis and a straight boundary line extending through a point at the flow-off edge and tangentially to the axially projecting air guiding element, and/or a reference angle present between the nozzle longitudinal axis and a straight boundary line extending through a point at the flow-off edge and a point of the air guiding element that projects maximally beyond the flow-off edge in the axial direction is ?50°.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: October 20, 2020
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventors: Max Staufer, Miklos Gerendas, Ruud Eggels
  • Method for manufacturing a component structure
    Patent number: 10792755
    Abstract: A method for producing a component structure of two components includes subjecting the components to beam energy for melting in a contact region. A variation of beam current is set to melt the components in the contact region over a defined component depth less than the perpendicular distance between sides of the contact region. A defined beam current pulse is periodically imparted to the variation of the beam current, to melt the components at least approximately over the entire perpendicular distance between the sides of the contact region and to produce in the region of the second side weld regions of a weld root of the weld connecting the components projecting from the contact region and form a pattern which representative of a weld quality. Between the weld regions there is no melting of the components in the region between the defined component depth and the second side.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: October 6, 2020
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventors: Dirk Metzler, Stefan Longerich
  • Rotor blade assembly comprising a ring segment shaped or disc segment shaped blade carrier and a radially inner reinforcement structure
    Patent number: 10794199
    Abstract: A rotor blade assembly group for an engine with at least one blade carrier having at least one rotor blade that is provided with multiple rotor blades along a circle line about a central axis of the rotor blade assembly group, wherein the blade carrier has a carrier section that extends radially inwards in the direction of the central axis with respect to the rotor blade, the carrier section comprises a connection area at which a stiffening structure with at least two, first and second, stiffening elements is fixedly attached, and the stiffening element is arranged at a first face side of the blade carrier, and the second stiffening element is arranged at a second face side that is facing away from the first face side. The blade carrier is formed in a ring-segment-shaped or disc-segment-shaped-manner.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: October 6, 2020
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventors: Miklos Gaebler, Sven Brueggmann
  • Rotor blade assembly comprising a ring-shaped or disc-shaped blade carrier and a radially inner reinforcement structure
    Patent number: 10794188
    Abstract: A rotor blade assembly group for an engine with a ring-shaped or disc-shaped blade carrier having multiple rotor blades that are provided along a circle line about a central axis of the rotor blade assembly group, wherein the blade carrier has a carrier section that extends radially inwards in the direction of the central axis with respect to the rotor blades, the carrier section comprises a connection area, at which a stiffening structure with at least two, first and second, stiffening elements is fixedly attached, and the first stiffening element is arranged at a first face side of the blade carrier and the second stiffening element is arranged at a second face side that is facing away from the first face side. The first and second stiffening elements are connected to the connection area of the blade carrier and in addition are connected to each other.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: October 6, 2020
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventors: Miklos Gaebler, Sven Brueggmann
  • Planetary gear mechanism and aircraft gas turbine with a planetary gear mechanism
    Patent number: 10794467
    Abstract: A planetary gear mechanism has a rotatable planet carrier, a device for conducting oil, and a housing-fixed oil collecting duct. The oil collecting duct surrounds an area of the planet carrier in the circumferential direction. Oil centrifuged off by the planet carrier is collected in the oil collecting duct. In the installation position of the oil collecting duct, the oil is conducted by a gravitational force in the direction of a lower collection area formed with an outlet through which oil can be discharged. A further outlet, through which oil can be conducted, is provided in front of the collection area with respect to the rotational direction of the planet carrier between an upper area of the oil collecting duct, as it appears in the installation position of the oil collecting duct, and the outlet. Also, an aircraft gas turbine with the planetary gear mechanism.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: October 6, 2020
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventors: Wolfram Kurz-Hardjosoekatmo, Carsten Wolf
  • Oil distribution system with at least one first area that is embodied in a rotatable manner and a second area
    Patent number: 10794470
    Abstract: A gear with an oil distribution system includes a first area at least approximately rotationally symmetrical with, in its radially inner area, an opening. Via the opening, oil is introduced from a second area into the first area during operation. Downstream of the opening with respect to the second area, the first area includes a collecting area extending in the radial and circumferential directions of the first area. An acceleration appliance for the oil, connected to the first area, is provided in the collecting area so a substantially radial flow direction in the direction of a radially outer area of the collecting area is applied to the oil that is present in the collecting area when the first area rotates. An area of the engine provided downstream of an outlet opening is in or can be brought into operative connection with the main oil supply circuit.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: October 6, 2020
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventors: Stephan Uhkoetter, Uwe Kracht, Jens Klostermann
  • Gas turbine and method of attaching a turbine nozzle guide vane segment of a gas turbine
    Patent number: 10794224
    Abstract: A gas turbine, including: a combustion chamber; a high-pressure turbine with a first turbine guide vane ring that is arranged downstream of the combustion chamber, wherein the first turbine guide vane ring has a plurality of turbine nozzle guide vane segments that respectively include at least one guide vane, an outer platform, and an inner platform; and an outer housing. Provision is made that the turbine nozzle guide vane segments are fixed in the radial direction at the outer housing, wherein occurring radial loads are transferred into the outer housing. The invention further relates to a method for attaching a turbine nozzle guide vane segment of a gas turbine.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: October 6, 2020
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventor: Thomas Schiessl
  • System for redundant supply of kinetic energy to drive system of aircraft
    Patent number: 10787271
    Abstract: The invention relates to the redundant supply of kinetic energy to a drive system of an aircraft in order to ensure in each case largely safe operation of the aircraft during normal operation of the system and also in various emergency scenarios. The system has two electrical machines (110, 130), each of which is connected to in each case one of the two propellers. A high-voltage battery (120) and an internal combustion engine (140) are also provided. These components of the system are, depending on the type of component, electrically and/or mechanically connected to one another and to the propellers, and a controller of the system controls energy flows between the components depending on the mode of operation or readiness for operation of the components in a redundant manner in such a way that the aircraft can be largely safely operated in various normal and emergency situations.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: September 29, 2020
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventors: Peter Barth, Klaus Braun, Stefan Dünsbier
  • Rotor blade for a turbomachine and method for the assembly of a rotor blade for a turbomachine
    Patent number: 10781699
    Abstract: A rotor blade for a turbomachine, in particular in an aircraft engine, with a cooling arrangement for cooling a surface inside the rotor blade by means of a cooling medium, in particular cooling air. The rotor blade having an impingement cooling device with a plurality of impingement cooling openings for deflecting the cooling medium flowing in the interior of the impingement cooling device onto the surface that is to be cooled by means of impingement cooling inside the rotor blade and that is located outside of the impingement cooling device, so that the surface can be cooled by means of an impingement cooling through a cooling medium than exits from the impingement cooling openings, wherein the impingement cooling device is movably mounted with respect to the rotor blade.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: September 22, 2020
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventor: Dimitrie Negulescu
  • Drive system for driving a component having an electric motor unit and a transmission unit
    Patent number: 10774925
    Abstract: An electric motor equipped with a transmission unit in the form of a planetary gear transmission is provided. The planetary gear transmission has a sun gear, planetary gears, and a ring gear, which are coupled to one another via corresponding toothings. The sun gear is coupled directly to a shaft of the electric motor and is fastened thereto. The planetary gears or axles thereof are retained on a bearing plate of the electric motor. The ring gear is rotatably mounted on the housing of the electric motor or is fastened to the housing of the electric motor. A common feature is that parts of the transmission are retained on the housing of the electric motor and not on a separate housing or another component of the transmission unit.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: September 15, 2020
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventors: Christian Loesch, Frank Anton, Robert Goraj
  • Planetary gearing and planet pin for a planetary gearing
    Patent number: 10767755
    Abstract: A planetary gearing includes a sun gear rotating about a rotation axis and driven by a sun shaft; planet gears driven by the sun gear; a ring gear engaging the planet gears; and a plurality of planet pins that respectively include an outer-side abutment surface having an axially forward end and an axially rearward end. Respectively, one planet pin is arranged inside a planet gear, and the planet pin and the planet gear form a lubricated journal bearing. At an axially forward face side and/or axially rearward face side, each planet gear forms a recess that extends inside the planet gear starting from the face side. The planet pins respectively form a crowning at their abutment surface such that their outer diameter decreases from a maximum outer diameter towards at least one axial end of the abutment surface, and has a minimum at the axial end.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: September 8, 2020
    Assignees: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG, ROLLS-ROYCE PLC
    Inventors: Michael Nique, Paul Gorenz, Christopher Campbell, Frank Wagner, Mark Spruce, Daren Ashmore
  • Bearing device for load reduction
    Patent number: 10760617
    Abstract: A bearing assembly for a gas turbine engine comprises a bearing; a bearing bracket, which holds the bearing and is secured by a predetermined breaking device on a connecting element, which can be connected or is connected to a loadbearing structure of the gas turbine engine; a first toothed component mounted on the bearing bracket; and a second toothed component fixed on the connecting element, wherein, after the destruction of the predetermined breaking device, the first toothed component and the second toothed component can be or are brought into engagement with one another in such a way that one of the toothed components can be made to roll on the other. A gas turbine engine and a method are furthermore provided.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: September 1, 2020
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventors: Martin Boehme, Gideon Daniel Venter
  • Mechanical clutch device and method for operating a mechanical clutch device
    Patent number: 10753409
    Abstract: A mechanical clutch device for coupling two connecting parts in a gas turbo engine, in particular a geared aircraft turbofan engine, with means to automatically trigger a position change of one of the connecting parts relative to the respective other connecting parts and/or relative to an engine part from the first position into a second position in dependence of a torque effective on the connecting parts and/or the engine part, in particular through the transmission via a shaft, in particular a non-nominal torque, more in particular a reversal in the direction of the torque. It also relates to a method for operating a mechanical clutch device.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: August 25, 2020
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventor: Hannes Wuestenberg
  • Plate-shaped structural component of a gas turbine
    Patent number: 10753612
    Abstract: A plate-shaped structural component of a gas turbine with a base body that, at least in one edge area, is provided in one piece with a side bar that is embodied to ne substantially rectangular to the surface of the base body, wherein the base body has a different thickness than the side bar, wherein a supporting body, which is connected in one piece with the base body and the side bar and is provided with a substantially triangular cross section, is arranged between the side bar and the base body, being provided with multiple slit-like recesses.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: August 25, 2020
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventor: Kay Heinze
  • Jet engine with a chamber
    Patent number: 10751656
    Abstract: A jet engine with a chamber which is delimited by a housing and inside of which a rotatable appliance that can be impinged by hydraulic fluid is arranged, wherein hydraulic fluid and air introduced through the housing into the chamber can be discharged from the chamber. In the area through which air and hydraulic fluid can be discharged from the chamber, the housing is embodied with a separating appliance in the area of which air and hydraulic fluid can be separated from each other, and/or a deflector appliance, by means of which air, hydraulic fluid and/or an air-oil mixture in the chamber can be guided in the direction of the area in a targeted manner, is provided upstream of the area of the housing.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: August 25, 2020
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventors: Christoph Klaus, Jonas Schwengler
  • Electrical conductor for an electrical machine with an elevated power-to-weight ratio
    Patent number: 10749394
    Abstract: The invention relates to an electrical conductor which is made up substantially of one or even several metal conductors which are sheathed by a graphene layer. Particularly in the case of the electrical conductor transporting an alternating current, the current in the conductor is forced radially outwards and therefore flows in the graphene layer. Since graphene has a substantially better conductivity than the materials customary in this application, such as copper for example, relatively low losses are accordingly produced and substantially higher degrees of efficiency can be achieved. The electrical conductor constructed in this way is used in a stator and/or rotor winding of an electrical machine, so that it has a significantly elevated power-to-weight ratio.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: August 18, 2020
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventors: Mykhaylo Filipenko, Paul Beasley