To measure an internal state of an engine, for example, the engine oil consumption conveniently and correctly, an inspection apparatus of the present invention for inspecting the internal state of the engine by using an exhaust gas of the engine including engine oil includes a data storage unit that stores content information about a plurality of elements contained in the engine oil, a data acceptance unit that accepts analysis information about a plurality of elements contained in the exhaust gas, and an inspection unit that compares the content information about the engine oil with the analysis information to inspect the internal state of the engine.

Lubrication systems of an aircraft engine and associated methods are provided. The lubrication system includes a chamber having a fluid inlet for receiving lubricating fluid into the chamber, and a fluid outlet for draining the lubricating fluid from the chamber. The fluid outlet is disposed on a wall defining part of the chamber. A rotor is disposed inside the chamber and interacts with the lubricating fluid inside the chamber. The rotor is rotatable in a rotation direction about a rotation axis. A perforated baffle is disposed in the chamber for interacting with the lubricating fluid inside the chamber. The perforated baffle includes a base attached to the wall of the chamber. The base of the perforated baffle is disposed at an angular position preceding the fluid outlet relative to the rotation direction of the rotor.

A method for controlling oil pressure in a controllable oil pump of an internal combustion engine system. A vehicle is arranged in communication with a control unit, the method comprising: receiving an indication of an upcoming vehicle operating situation affecting an operation of the ICE system; determining an expected change in the operation of the ICE system for the upcoming vehicle operating situation; determining a current oil pressure of the oil pump; and on the basis of said determined expected change in the operation of the ICE system and the determined current oil pressure of the oil pump, determining a minimum oil pressure for the oil pump for the upcoming vehicle operating situation.

A vehicle may include a driving motor supplying driving force to vehicle wheel; a power converter using a coil provided in the driving motor to transform power input from the external power source; a battery charged according to counter electromotive force of the driving motor in a regenerative braking mode, charged according to the power transformed by the power converter in a charging mode, and supplying driving power to the driving motor in a driving mode; an oil pump supplying oil to the driving motor; a detector detecting temperature of the oil; and a controller controlling the oil pump to be operated in a warm-up mode when the oil temperature detected by the detector is less than a first threshold temperature and the battery is in the charging mode, and applying reference power to the oil pump to move the oil to the driving motor in the warm-up mode.

A lubricant system for supplying lubrication to a component in a turbine engine includes a lubricant reservoir, a supply line fluidly coupling the lubricant reservoir to the component in the turbine engine, a scavenge line fluidly coupling the component to the lubricant reservoir, and a bypass line fluidly coupling the supply line to the scavenge line and bypassing the component.

A system is presented for analyzing lubricant composition of a vehicle engine. The system includes the vehicle engine; sensors; a controller in communication with the sensors; and a lubrication sampling apparatus coupled to the controller and the engine's lubrication system. The sampling apparatus is configured to: transfer a first sample of the lubricant into a first sample container and a second sample of the lubricant a second sample container. The controller is configured to: receive first sensor readings over a time period of the first sample and second sensor readings over a time period of the second sample; receive a composition analysis of the first sample and a composition analysis of the second sample; and generate a report comprising: the first composition analyses, the first sensor readings, the second composition analysis, and the second sensor readings.

A temperature management system, such as for a lubricant (3) contained in a lubricant reservoir (1) of a compressor system (2) for a heat pump that pumps a working medium, method for controlling a lubricant temperature, and heat pumps having a temperature management system, where the temperature of the lubricant (3) can be set flexibly, dynamically and in line with requirements, increasing the service life of the lubricant and improving the operating performance of the heat pump.

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.

A method for operating an active oil separator for separating oil from exhaust air of a crankcase of a motor vehicle with an internal combustion engine. An engine operating state of the internal combustion engine is detected. A first SET rotational speed of the oil separator is determined as a function of the detected engine operating state and a first characteristic map. A maximum SET rotational speed of the oil separator is determined as a function of the first SET rotational speed by the determination device. A preferred SET rotational speed is determined on the basis of the maximum SET rotational speed by a determination device. An electric motor is controlled to drive the oil separator at the preferred SET rotational speed by a control device. A device is also provided for separating oil from exhaust air of a crankcase of a motor vehicle with an internal combustion engine.

A controller for a vehicle that includes an internal combustion includes processing circuitry. The processing circuitry obtains a predicted temperature outside the vehicle and estimates the viscosity of a lubricating oil based on the oil pressure and the oil temperature of the lubricating oil when the internal combustion engine satisfies a specific operation condition. When the processing circuitry determines that there is a likelihood of a cranking failure occurring in the internal combustion engine on condition that the predicted temperature is less than a threshold value that is based on the viscosity, the processing circuitry outputs a notification signal indicating that that there is a likelihood of a cranking failure occurring in the internal combustion engine.