公开(公告)号：US20220235716A1

公开(公告)日：2022-07-28

申请号：US17570433

申请日：2022-01-07

Applicant: ROLLS-ROYCE plc

Inventor： Peter SWANN ,  Christopher P. MADDEN

IPC: F02C9/28 ,  F02C7/22

Abstract: An aircraft including lean-burn gas turbine engines operating in pilot-plus-mains mode with a given initial fuel flow W0, a method of controlling the optical depth of contrails produced by a first group of engines includes the steps of (i) reducing fuel flow to each engine in the first group to change the operation of each engine from pilot-plus-mains mode to pilot-only mode, and (ii) adjusting fuel flow to one or more engines in a second group of engines such that the total fuel flow to engines of the second group is increased, all engines of the second group remaining in pilot-plus-mains mode, and wherein the set of lean-burn engines consists of the first and second groups. Depending on atmospheric conditions, the average optical depth of contrails produced by the engines may be enhanced or reduced compared to when all engines operate in pilot-plus-mains mode with a fuel flow W0.

公开(公告)号：US20160325826A1

公开(公告)日：2016-11-10

申请号：US15097975

申请日：2016-04-13

Applicant: ROLLS-ROYCE plc

Inventor： Peter SWANN

IPC: B64C25/40 ,  B64D41/00 ,  B64C25/46 ,  B64C25/34

CPC classification number: B64C25/405 ,  B64C25/34 ,  B64C25/42 ,  B64C25/46 ,  B64D41/00 ,  B64D2205/00 ,  B64D2221/00 ,  Y02T50/823

Abstract: Apparatus for controlling velocity of aircraft during landing roll-out and/or taxiing, the apparatus comprising: a generator for absorbing kinetic energy from a landing gear of the aircraft to generate electrical energy; and a component of the aircraft for receiving and consuming electrical energy from the generator, the generator and the component being electrically connected to one another without an intervening electrical energy storage device.

Abstract translation: 用于在着陆推出和/或滑行期间控制飞行器的速度的装置，所述装置包括：发电机，用于吸收来自飞行器的起落架的动能以产生电能; 以及飞行器的用于从发电机接收和消耗电能的部件，所述发电机和所述部件彼此电连接，而没有中间的电能存储装置。

公开(公告)号：US20150284103A1

公开(公告)日：2015-10-08

申请号：US14644993

申请日：2015-03-11

Applicant: ROLLS-ROYCE PLC

Inventor： Peter SWANN

IPC: B64D31/10 ,  F02C9/00

CPC classification number: B64D31/10 ,  F02C9/00 ,  F02C9/42 ,  F05D2220/323 ,  F05D2270/051 ,  F05D2270/08 ,  F05D2270/0831 ,  F05D2270/13 ,  F05D2270/335 ,  Y02T50/671 ,  Y02T50/677

Abstract: The invention concerns an aircraft propulsion control system in which multiple gas turbine engines (10) are under the control of a controller (30). One or more sensor is arranged to sense a condition indicative of vapour trail formation by an exhaust flow from one or more of the engines. The controller (30) is arranged to be responsive to a thrust demand (51) for the aircraft and to control the thrust produced by each of the engines (10) concurrently so as to alter the efficiency of the engines upon sensing of the vapour trail formation condition, while satisfying the aircraft thrust demand. The controller (30) may output a separate throttle control signal (35) to each engine (10).

Abstract translation: 本发明涉及一种飞机推进控制系统，其中多个燃气涡轮发动机（10）处于控制器（30）的控制之下。 一个或多个传感器布置成通过来自一个或多个发动机的排气流感测指示蒸气轨道形成的状况。 控制器（30）被布置成响应于用于飞机的推力需求（51）并且同时控制由每个发动机（10）产生的推力，以便在感测到蒸气轨迹时改变发动机的效率 形成条件，同时满足飞机的推力需求。 控制器（30）可以向每个发动机（10）输出单独的节气门控制信号（35）。

公开(公告)号：US20150100220A1

公开(公告)日：2015-04-09

申请号：US14486563

申请日：2014-09-15

Applicant: Rolls-Royce PLC

Inventor： Peter SWANN

IPC: F02C9/28 ,  F02C9/40

CPC classification number: F02C9/28 ,  F02C3/20 ,  F02C7/22 ,  F02C9/26 ,  F02C9/40 ,  F05D2270/08 ,  F05D2270/311 ,  F05D2270/312 ,  F05D2270/313 ,  Y02T50/671 ,  Y02T50/677

Abstract: This invention concerns a method of delivering fuel to an aircraft engine 60, which involves providing a plurality of distinct fuel sources 20, 22, a first fuel source 20 comprising a first fuel having a first aromatic content and a second fuel source 22 comprising a second fuel having a second aromatic content. One or more ambient atmospheric condition is determined for at least a portion of a flight path of the aircraft, said condition being indicative of a likelihood of contrail 135 formation by the engine 60. A desirous fuel composition for combustion by the engine is determined based upon the one or more ambient atmospheric condition and a ratio of the first and second fuels from said respective fuel sources is selected according to said desirous fuel composition. The selected ratio of the first and second fuels is delivered to the aircraft engine 60.

Abstract translation: 本发明涉及一种向飞行器发动机60输送燃料的方法，其包括提供多个不同的燃料源20,22，第一燃料源20，其包括具有第一芳烃含量的第一燃料和包含第二燃料源22的第二燃料源22， 燃料具有第二芳烃含量。 为飞机的飞行路径的至少一部分确定一个或多个环境大气条件，所述条件指示由发动机60形​​成转向135的可能性。由发动机燃烧的期望的燃料组合物基于 根据所述希望的燃料组成选择一个或多个环境大气条件和来自所述各个燃料源的第一和第二燃料的比率。 所选择的第一和第二燃料的比率被输送到飞机发动机60。

公开(公告)号：US20130340324A1

公开(公告)日：2013-12-26

申请号：US13896766

申请日：2013-05-17

Applicant: ROLLS-ROYCE PLC

Inventor： Peter SWANN

IPC: G05D11/13

CPC classification number: G05D11/132 ,  F02C3/30 ,  F02C7/22 ,  F02C9/40 ,  F05D2270/08 ,  F05D2270/081 ,  F05D2270/0831 ,  F05D2270/804 ,  Y02T50/671 ,  Y02T50/677

Abstract: A fuel system (10) comprising a fluid blender (14) in fluid communication with a source of a first fuel composition and a source of a second fuel composition via at least one inlet (32, 34). The blender (14) is operable to receive at least the first fuel composition and/or second fuel composition via the at least one inlet (32, 34), and output a resultant fuel composition comprising the received fuel compositions via at least one outlet (36). The at least one outlet (36) is in fluid communication with an engine fuel injection device (38).

Abstract translation: 一种燃料系统（10），包括通过至少一个入口（32,34）与第一燃料组合物的源和第二燃料组合物的源流体连通的流体搅拌器（14）。 搅拌器（14）可操作以经由至少一个入口（32,34）接收至少第一燃料组合物和/或第二燃料组合物，并且经由至少一个出口输出包含所接收的燃料组合物的所得燃料组合物（ 36）。 所述至少一个出口（36）与发动机燃料喷射装置（38）流体连通。