There is described herein methods and system for correcting steady state errors in propeller speed by calculating a leakage flow rate as a function of engine and propeller parameters.

According to the method of the invention, a lubricant is supplied incrementally to a rotary bearing while the bearing is in operation rotating at a rotational speed. The lubricant is supplied in consecutive steps so that at each step a portion of a prescribed amount of lubricant is supplied, followed each time by an ultrasound measurement. A first ultrasound measurement is performed before the first supply step, and starting from the second supply step, each measurement result is compared at least to the previous result, in order to evaluate the bearing condition and decide on that basis whether to continue the sequence or not. Stopping the sequence is decided when the lubrication of the bearing is assessed as successful, a lubrication failure or over-lubrication.

There is described herein methods and system for correcting steady state errors in propeller speed by calculating a leakage flow rate as a function of engine and propeller parameters.

This invention relates to a smart lubrication system containing a pre-constructed database of manual regular lubrication tasks, software, hardware, a basic unit ensuring the lubrication to be performed when necessary and in the necessary volume, industrial PC, lubrication points database, battery charger, main unit user monitor, mobile lubrication unit, UPS and battery group, operator's monitor, PLC unit, lubrication point (Tag ID) recognition module, grease pump unit, flow (lubricant volume) meter, lubrication hose and Tag ID reader cable, lubrication point Tag ID (Chip), lubrication coupling, lubrication nipple, and greasing block.

An AI-driven wireless lubricator remote control system includes multiple grease injection lubrication devices, a cloud server host and an artificial intelligence (AI) system. Each grease injection lubrication device includes a central control processing unit, a grease injection lubrication unit, a parameter setting unit, an operating status information unit, a detection unit, a warning unit, a wireless communication unit and a remaining oil volume information unit. The grease injection lubrication device can independently monitor the oil supply status and abnormal operating status information of individual lubrication points, and through wireless remote transmission (network or satellite network), the grease injection lubrication device information distributed on the mechanical equipment scattered around the factory is sent to the cloud server host. Furthermore, the mobile device can view the information of each grease injection lubrication device and issue commands directly through APP and the Internet (connected to the cloud server host).