公开(公告)号：US08874307B2

公开(公告)日：2014-10-28

申请号：US13654598

申请日：2012-10-18

Applicant: Airbus Operations GmbH

Inventor： Robert Behr ,  Volker Baumbach

IPC: G01M17/00 ,  G06F7/00 ,  G06F19/00

CPC classification number: F15B19/005

Abstract: A device for determining ageing of a hydraulic fluid in a hydraulic system with a multitude of hydraulic components is provided. The device comprises at least one temperature determination device and at least one ageing determination device, wherein the temperature determination device determines the respective temperature of each discrete fluid volume of the hydraulic fluid in the hydraulic system, and from the aforesaid the ageing determination device determines an increase in ageing. Generally, the temperature determination device carries out a numerical thermal simulation of the hydraulic system, component by component, including determining at least one temperature of at least one hydraulic component of the hydraulic system, which simulation is supported by measuring the temperatures of individual hydraulic components by means of temperature sensors.

Abstract translation: 提供了一种用于确定具有多个液压部件的液压系统中的液压流体的老化的装置。 该装置包括至少一个温度确定装置和至少一个老化确定装置，其中温度确定装置确定液压系统中的液压流体的每个离散流体体积的相应温度，并且从上述时间确定装置确定 老化增加。 通常，温度测定装置逐个进行液压系统的数值热仿真，包括确定液压系统的至少一个液压部件的至少一个温度，该模拟通过测量各个液压部件的温度来支持 通过温度传感器。

公开(公告)号：US09651501B2

公开(公告)日：2017-05-16

申请号：US14448724

申请日：2014-07-31

Applicant: Airbus Operations GmbH

Inventor： Gerhard Müller ,  Sumit Paul ,  Andreas Helwig ,  Volker Baumbach

IPC: G01N21/89 ,  G01N15/02 ,  G01N33/28 ,  G01N21/31 ,  G01N21/35 ,  G01N21/85 ,  G01N21/3577 ,  G01N21/359 ,  G01N21/03 ,  G01N21/09 ,  G01N21/53 ,  G01N21/64 ,  G01N21/94

CPC classification number: G01N21/8914 ,  G01N15/0205 ,  G01N21/0317 ,  G01N21/09 ,  G01N21/314 ,  G01N21/3577 ,  G01N21/359 ,  G01N21/53 ,  G01N21/643 ,  G01N21/85 ,  G01N21/94 ,  G01N33/2847 ,  G01N33/2852 ,  G01N33/2876 ,  G01N2021/3148 ,  G01N2201/0214 ,  G01N2201/06113 ,  G01N2201/062 ,  G01N2201/0621 ,  G01N2201/0627 ,  G01N2201/0697

Abstract: The invention relates to a contamination recording apparatus (12) for recording contaminations in a flowing hydraulic fluid (10) to be examined in aircraft (11a), which comprises a conveying device (14) for conveying the flowing hydraulic fluid (10), a light source (34) for exposing the hydraulic fluid (10) flowing in the conveying device (14) to light (46), and a detection device (36) for recording a fraction of the light (46) absorbed by the exposed hydraulic fluid (10), the light source (34) being formed in order to emit light (46) having a wavelength in the near-infrared range. The invention furthermore relates to a hydraulic system (11) equipped with such a contamination recording apparatus (12) and to an aircraft (11a), and also to a method for recording contaminations in a hydraulic fluid (10) flowing in a hydraulic system (11) of an aircraft (11a).

公开(公告)号：US10556674B2

公开(公告)日：2020-02-11

申请号：US15346137

申请日：2016-11-08

Applicant: AIRBUS OPERATIONS LIMITED ,  AIRBUS OPERATIONS GMBH

Inventor： Fraser Wilson ,  Volker Baumbach

IPC: B64C25/40 ,  F01P3/20 ,  H02K9/193

Abstract: An aircraft comprises a landing gear assembly on a part of which is mounted a motor for driving a wheel of the landing gear assembly, for example to enable the aircraft to perform taxiing manoeuvres. The motor is a liquid-cooled motor and the liquid that is used to cool the motor is hydraulic fluid, preferably hydraulic fluid taken from a hydraulic system that already exists on the aircraft to supply other consumers of hydraulic fluid pressure on the aircraft. The hydraulic fluid thus has other utility (i.e. other than cooling the motor) on the aircraft and therefore has a significant volume (and therefore a significant heat capacity). There may be a need to convert from high pressure hydraulic fluid to a lower pressure supply.