公开(公告)号：EP3118111A1

公开(公告)日：2017-01-18

申请号：EP16178749.4

申请日：2016-07-08

申请人： Airbus Operations Limited

发明人： POUNTNEY, Oliver ,  SHEPHERD, Alan

IPC分类号： B64C25/60 ,  B64D45/00 ,  B64F5/00 ,  F16F9/32 ,  G01M17/007 ,  G01M17/013 ,  G01M17/02 ,  G01M17/04

CPC分类号： B64D45/0005 ,  B64C25/60 ,  B64F5/60 ,  F16F9/3264 ,  G01M17/04 ,  Y02P70/585

摘要： A method and apparatus for servicing a shock absorber (102) on a landing gear assembly (108; 110) of an aircraft (101) in a weight-on-wheels state is described. The shock absorber comprises at least one chamber (111) containing both hydraulic fluid (135) and a gas (121) in fluid communication with each other. Gas is exhausted from the chamber into a tank. Dissolved gas is degassed from the hydraulic fluid. The apparatus (250) comprises a source (gas cylinders 251; nitrogen delivery system 203) of gas and a source (201) of hydraulic fluid. The amount of hydraulic fluid in the chamber is corrected, preferably such that the chamber is then filled with a known amount of degassed hydraulic fluid. A single pre-set mass of gas may be created in the tank and then injected into the chamber by the gas delivery system (203). The process may be at least semi-automatically performed, for example under the control of a control unit (205). By delivering a pre-set mass of gas into the chamber, there is no need to rely on a measure of gas pressure or H-dimension (h) when servicing the shock absorber (102), and more accurate servicing of a shock absorber may thus be provided.

摘要翻译： 描述了一种在轮重状态下维修飞行器（101）的起落架组件（108,110）上的减震器（102）的方法和装置。 减震器包括至少一个包含液压流体（135）和彼此流体连通的气体（121）的腔室（111）。 气体从腔室中排出到罐中。 溶解气体从液压油中脱气。 装置（250）包括气体源（气瓶251;氮气输送系统203）和液压流体源（201）。 校正腔室中的液压流体的量，优选地使得腔室​​然后用已知量的脱气液压流体填充。 可以在罐中产生单个预设质量的气体，然后由气体输送系统（203）注入到室中。 该过程可以至少半自动地执行，例如在控制单元（205）的控制下。 通过将预定质量的气体输送到室中，在维修减震器（102）时，不需要依赖气体压力或H-尺寸（h）的量度，并且更精确地对减震器进行维修 因此被提供。

公开(公告)号：EP3118110A1

公开(公告)日：2017-01-18

申请号：EP16178748.6

申请日：2016-07-08

申请人： Airbus Operations Limited

发明人： POUNTNEY, Oliver ,  SHEPHERD Alan

IPC分类号： B64C25/60 ,  B64D45/00 ,  B64F5/00 ,  F16F9/32 ,  G01M17/007 ,  G01M17/013 ,  G01M17/02 ,  G01M17/04

CPC分类号： B64F5/40 ,  B64C25/60 ,  B64D45/0005 ,  B64F5/60 ,  F16F9/3264 ,  F16F9/3271 ,  G01M17/007 ,  G01M17/013 ,  G01M17/02 ,  G01M17/04 ,  Y02P70/585

摘要： A method and portable apparatus for servicing a shock absorber (102) on a landing gear assembly (108; 110) of an aircraft (101) in a weight-on-wheels state is described. The shock absorber comprises at least one chamber (111) containing both hydraulic fluid (135) and a gas (121) in fluid communication with each other. Gas is exhausted from the chamber. Dissolved gas is degassed from the hydraulic fluid. The portable apparatus (117) comprises a source (gas cylinder 120) of gas and a source (128) of hydraulic fluid. The amount of hydraulic fluid in the chamber is corrected, preferably such that the chamber is then filled with a known amount of degassed hydraulic fluid. A pre-set mass of gas is then delivered into the chamber under the control of a gas delivery system (inflation kit 119) of the portable apparatus. More accurate servicing of a shock absorber may thus be provided since account is additionally taken of gas dissolved in hydraulic fluid. Also, by delivering a pre-set mass of gas into the chamber, there is no need to rely on a measure of gas pressure or H-dimension (h) when servicing the shock absorber (102).

摘要翻译： 描述了一种在轮重状态下维修飞机（101）的起落架组件（108,110）上的减震器（102）的方法和便携式设备。 减震器包括至少一个包含液压流体（135）和彼此流体连通的气体（121）的腔室（111）。 气体从腔室中排出。 溶解气体从液压油中脱气。 便携式设备（117）包括气体源（气瓶120）和液压流体源（128）。 校正腔室中的液压流体的量，优选地使得腔室​​然后用已知量的脱气液压流体填充。 然后在便携式设备的气体输送系统（充气套件119）的控制下，将预设质量的气体输送到室中。 因此，可以提供对减震器的更精确的维修，因为另外考虑到溶解在液压流体中的气体。 此外，通过将预定质量的气体输送到室中，在维修减震器（102）时，不需要依靠气体压力或H尺寸（h）的量度。