A system and method for predicting a remaining oil life of oil in a gearbox of an air turbine starter of a vehicle. The method includes generating a temperature data, generating an environmental data set by an environmental sensor, predicting a remaining oil life based on the temperature data set and the environmental data set and scheduling a maintenance event in response to the prediction of the remaining oil life.

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 system and method for predicting a remaining oil life of oil in a gearbox of an air turbine starter of a vehicle. The method includes generating a temperature data, generating an environmental data set by an environmental sensor, predicting a remaining oil life based on the temperature data set and the environmental data set and scheduling a maintenance event in response to the prediction of the remaining oil life.

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.

System, apparatus, and method for delivering grease to process valve(s). The system generally includes a grease cylinder to which grease is delivered, a piston, an actuator, and a first process valve. The piston extends at least partially within the grease cylinder. The actuator strokes the piston within the grease cylinder to meter a first amount of the delivered grease to the first process valve. The actuator comprises a power cylinder within which the piston extends. The piston comprises a head portion slidably disposed in the power cylinder and dividing the power cylinder into first and second chambers. The head portion has a first cross-sectional area. The piston includes another portion contacting the grease in the grease cylinder and having a second cross-sectional area smaller than the first cross-sectional area. The actuator may also meter a second amount of the delivered grease to a second process valve.

A system generally including a delivery module and metering modules adapted to deliver grease to process valves. The metering modules each include a grease metering device including either: a grease cylinder, a piston extending within the grease cylinder, and a first actuator; or a casing, a rotor extending within the casing, and a second actuator. The delivery module includes a grease container and a fluid transport device adapted to deliver grease from the grease container to the grease metering modules. A control unit is adapted to control: the first actuator(s) to stroke the piston(s) within the grease cylinder(s) so that respective amounts of the delivered grease are metered to the process valves; and/or the second actuator(s) to rotate the rotor(s) within the casing(s) so that the respective amounts of the delivered grease are metered to the process valves.

System, apparatus, and method for delivering grease to process valve(s). The system generally includes a grease cylinder to which grease is delivered, a piston, an actuator, and a first process valve. The piston extends at least partially within the grease cylinder. The actuator strokes the piston within the grease cylinder to meter a first amount of the delivered grease to the first process valve. The actuator comprises a power cylinder within which the piston extends. The piston comprises a head portion slidably disposed in the power cylinder and dividing the power cylinder into first and second chambers. The head portion has a first cross-sectional area. The piston includes another portion contacting the grease in the grease cylinder and having a second cross-sectional area smaller than the first cross-sectional area. The actuator may also meter a second amount of the delivered grease to a second process valve.

Lubricant delivery systems, related methods, and computer program products for facilitating the assessment of operating conditions of one or more lubricant recipients are disclosed. In an aspect, assessment(s) facilitated by the lubricant delivery systems and related methods and computer program products of the present disclosure may be used to maintain a lubricant delivery process that delivers a lubricant supply to one or more recipients in order to minimize or prevent damage. Assessment(s) may be at least partially facilitated by one or more sensing devices that may be configured to detect, measure, or sense one or more operating conditions of at least one recipient in order to identify situations wherein the recipient(s) may be operating without adequate supply, amount, density, viscosity, and/or composition of one or more lubricants. A user and/or computing device may make one or more adjustments to at least one lubricant delivery process to the recipient(s).

A method for determining a degree of loading on a filter medium of a filter device on a vehicle through which a fluid flows includes determining an operating characteristic of the filter device based on at least one operating quantity of the vehicle and comparing a predefined reference characteristic of the filter device with the operating characteristic. The degree of loading is derived from a result of the comparing step.

A lubrication system for an internal combustion engine includes a fluid flow control device at an outlet side of the pump that regulates pressure conditions at the outlet side of the pump upstream of the lubrication circuit in the engine. The fluid flow control device is located in a recirculation path, and opens in response to a fluid pressure at the outlet of the pump exceeding a first threshold to allow the fluid to pass from the outlet side of the pump back to an inlet side of the pump. The recirculation path includes a tuning device that maintains the fluid pressure at engine speeds above the first threshold. In response to engine speeds above a second threshold, the tuning device restricts fluid flow in the recirculation path so that the fluid pressure in the fluid flow path increases.