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Air China Limited patents (2015 archive)


Recent patent applications related to Air China Limited. Air China Limited is listed as an Agent/Assignee. Note: Air China Limited may have other listings under different names/spellings. We're not affiliated with Air China Limited, we're just tracking patents.

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07/23/15 / #20150203211

System and method for detecting an aircraft jitter

The present invention relates to a system and method for detecting an aircraft jitter. The aircraft jitter detection system comprises: a jitter detection apparatus, which detects accelerations of pitch and yaw of the aircraft; a data acquisition apparatus, which obtains accelerations in two directions detected by the jitter detection apparatus; and a jitter determination apparatus, which extracts frequency spectrum and energy information of the jitter according to the accelerations in two directions obtained by the data acquisition apparatus, and determines whether the aircraft jitters.. ... Air China Limited

03/12/15 / #20150073648

System and method for detecting addition of engine lubricant

The present invention relates to a method for detecting addition of engine lubricant, comprising: determining whether the difference value between the lubricant quantity at a first timing and that at a second timing is greater than a first threshold value; delaying a period and determining whether the difference value between the lubricant quantity at a third timing and that at a fourth timing is greater than a second threshold value in response to that the difference value between the lubricant quantity at the first timing and that at the second timing is greater than the first threshold value; and detecting the lubricant increment in response to that the difference value between the lubricant quantity at the third timing and that at the fourth timing is greater than the second threshold value.. . ... Air China Limited

03/12/15 / #20150068293

Method and device for monitoring the malfunction of apu turbine vane fracture and rotor shaft jam

The present invention relates to a method and device for monitoring apu turbine vane fracture and rotor shaft jam. The method for monitoring apu turbine vane fracture and rotor shaft jam comprises: acquiring apu messages at multiple time points within a period; obtaining the operation parameters of the apu according to the apu messages, the operation parameters including at least the start time sta; calculating the average value avg and the deviation index δ of the start time sta within the period; and determining the circumstance of the turbine vane fracture and rotation shaft jam of apu is in stable phase, decline phase or malfunction phase according to the deviation index δ.. ... Air China Limited

03/12/15 / #20150068289

System and method for monitoring lubricant of an engine

The present invention relates to a system and method for monitoring lubricant of an engine. The system for monitoring lubricant of an engine comprises: a lubricant sensor, which measures lubricant quantity of the engine; a data acquisition unit, which collects the lubricant quantity of the engine from the lubricant sensor at a fixed time interval; and a message generation unit, which generates lubricant quantity monitoring messages according to the lubricant quantity of the engine collected by the data acquisition unit.. ... Air China Limited








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