There is described an oil contamination detection system and method. The system comprises a forward sensor package, a rearward sensor package, a catalytic chamber, and a computing device. The method comprises obtaining sensor measurements from the forward sensor package and the rearward sensor package, and detecting the presence of oil in the air flow from the sensor measurements.

A fluid analyzing system comprises a telematics device, a fluid analysis control module, and a locomotive management system. The telematics device is coupled with a locomotive. The fluid analysis control module is coupled with the locomotive and the telematics device. The fluid analysis control module is configured for initiating acquisition of a sample of a fluid of the locomotive and providing the sample to a microfluidic analyzer for conduction of a microfluidic analysis in response to occurrence of an analysis trigger. The analysis trigger comprises an operating characteristic of the locomotive. The locomotive management system is located remotely from the locomotive and the telematics device. The locomotive management system is configured for wirelessly receiving results of the microfluidic analysis transmitted from the telematics device.

An oil debris monitoring sensor includes a multiple of passages within the housing, each of the multiple of passages surrounded by a set of coils to detect a particle. A method for determining a presence of a particle in a system includes a) installing a single sensor in-line with an oil flow path; b) communicating oil through a multiple of passages within the housing of the single sensor; c) detecting a particle through the single sensor; and d) isolating the particle to one of the multiple of passages within the sensor housing.

A test kit (110) includes an at least partially transparent or translucent tubular collection chamber (122) which has a flow control valve (111) at the inlet end (122a) thereof. Flow control valve (111) has a mouth (112a) that is used to engage a Schrader valve (132) of a HVACR system to flow pressurized refrigerant fluid into the collection chamber (122) via flow control valve (111). The flow of the pressurized refrigerant fluid is throttled by flow control valve (111) to ensure that sufficient lubricating oil is separated from the refrigerant fluid and remains within the collection chamber (122), even as refrigerant is expelled from collection chamber (122) via vent holes (124). A collector (126) serves to accumulate separated lubricating oil. A frangible ampoule (128) which contains a liquid pH indicator (130) is crushed to contact the pH indicator with the separated lubricating oil to test the pH of the oil by color change of the pH indicator.

The method can include analyzing the composition of the particulate metal debris, including ascertaining a presence of at least one main alloy element and a presence or absence of at least one signature alloy element in the particulate debris; establishing a correlation between the particulate metal debris and a set of components, including matching the ascertained presence of the at least one main alloy element to a family of alloys from which the components of the set, including the source component, are made; and determining the source component amongst the components of the set, including matching the ascertained presence or absence of the at least one signature alloy element to an alloy composition of the source component.

The gas turbine engine can have a set of components, the components of the set all being made of material compositions of the same type having a common at least one main material element, the material compositions having distinct signatures in the form of a varying trace amount of one or more signature element, the distinct signatures varying from one component of the set to another.

Systems and methods for lubricant dilution detection are disclosed. A method for detecting lubricant dilution for a lubrication system includes detecting a low idle condition. The method includes receiving sensed values indicative of lubricant pressure and lubricant temperature during the low idle condition. The method also includes determining a lubricant pressure threshold based on the sensed value indicative of lubricant temperature. The method further includes determining lubricant dilution based on the sensed value indicative of lubricant pressure and the determined lubricant pressure threshold during the low idle condition. In accordance with a determination that there is lubricant dilution, the method includes outputting an indication of the lubricant dilution.

In a diagnostic device and a diagnostic method for a motor unit of an electric vehicle, an oil degradation/others detection unit is provided which is configured to detect at least any one detection item of a contamination degree, a degradation degree, and an oil amount of an oil used for cooling a motor unit or a reduction gear unit during a non-traveling period when the vehicle is powered on. An abnormalities-time control unit is provided which is configured to send notice of abnormalities of an oil supply system or not permit start of rotation of the motor unit when a detection value detected by the oil degradation/others detection unit is out of a setting range.

A method and a sampling tool for collecting particles from lubrication fluid of an engine are disclosed. The particles collected may be used to conduct analysis to diagnose a condition of the engine. The tool can be detachably connectable to a lubrication system of the engine. The tool comprises an inlet for receiving lubrication fluid from the lubrication system of the engine, a filter and a pump configured to induce a flow of the lubrication fluid through the filter.

A lubricant, a friction pair having the lubricant and a method for controlling COF between the friction pair are provided. The friction pair includes a first friction part (1) and a second friction part (2). Firstly a lubricant (4) is provided between the first and second friction parts (1, 2). Then a potential is applied on the first friction part (1) via the lubricant (4). And COF is controlled by controlling the potential. The lubricant (4) contains propylene carbonate and a surfactant.