A technique facilitates greasing of valves on a well tree, e.g. a frac tree, according to a simple process which enables selected, individual valves to be greased when desired. In some applications, the greasing process may be automated and controlled via a greasing control system. According to an embodiment, a greasing system is connected with grease ports at a plurality of actuatable valves located in a well tree. The greasing system has a plurality of grease valves which may be associated with each of the actuatable valves, e.g. with each of the grease ports. A pump is used to pump grease to the grease valves and the grease valves are selectively actuated to open positions to provide controlled greasing of desired actuatable valves so as to remove debris from and to lubricate selected actuatable valves.

A technique facilitates greasing of valves on a well tree, e.g. a frac tree, according to a simple process which enables selected, individual valves to be greased when desired. In some applications, the greasing process may be automated and controlled via a greasing control system. According to an embodiment, a greasing system is connected with grease ports at a plurality of actuatable valves located in a well tree. The greasing system has a plurality of grease valves which may be associated with each of the actuatable valves, e.g. with each of the grease ports. A pump is used to pump grease to the grease valves and the grease valves are selectively actuated to open positions to provide controlled greasing of desired actuatable valves so as to remove debris from and to lubricate selected actuatable valves.

A lubrication system includes a lubricator. A detecting unit includes an oil introducing part, multiple chambers, multiple blockage detectors and a processor. The oil introducing part is connected between the detecting unit and the lubricator. The oil introducing part communicates with the chambers. The blockage detectors are electrically connected to the processor and monitor transportation status of lubrication oil of the chambers. The processor judges the transportation status of the lubricating oil of the chambers by results from the blockage detectors. The lubrication system finds out blockage in the oil paths immediately so as to remove the blockage timely.

A method and system for estimating the remaining useful life of a filter in a lubrication system is disclosed along with exemplary system components.

A device for outputting a future state of a central lubrication system includes at least one sensor for recording a parameter of the central lubrication system, a processing unit for processing the recorded parameter, determining a current state of the central lubrication system based on the processed parameter, and estimating a future state of the central lubrication system over a certain period of time based on the current state and stored data, and an output unit for outputting the future state of the central lubrication system.

Methods of lubricating fracking valves on a wellhead include mounting a distribution manifold of a grease distribution system on, adjacent to or remotely with respect to the wellhead, the distribution manifold having a plurality of manifold valves; selecting at least one of the fracking valves for lubrication; coupling at least one of the plurality of manifold valves of the grease distribution system to the at least one of the fracking valves; coupling a grease pump to the at least one of the plurality of manifold valves; opening the at least one of the plurality of manifold valves; and distributing grease from the grease pump through the at least one of the plurality of manifold valves to the at least one of the fracking valves by operation of the grease pump.

A feed system for feeding lubricating oil to members of a turbine engine including a reduction gearbox, the feed system including a nonpositive-displacement pump device for connecting upstream to an oil tank and driven in rotation at a speed that is not correlated with an operating speed of the turbine engine; a separator node connected to the outlet of the nonpositive-displacement pump device; a first delivery branch for lubricating the RGB connected to the nonpositive-displacement pump device via the separator node; a second delivery branch for lubricating other members connected to the nonpositive-displacement pump device via the separator node, the second delivery branch including a positive-displacement pump; and at least one fluid metering device having a metering slot fed by the nonpositive-displacement pump device via the separator node for the purpose of feeding the RGB.

A system includes a machine tool that includes a cutting tool, a fluid subsystem that provides fluid to the cutting tool, and at least one processor that executes instructions that cause the at least one processor to: obtain a signal indicative of a load on the cutting tool, establish a first value of at least one parameter of the fluid based on the signal, obtain a second value of the at least one parameter that is based on a simulation, determine a difference between the first value and the second value, and adjust a state of a device of the fluid subsystem based on the determined difference.

The invention relates to a lubricant distributor, in particular a sectional distributor, for distributing lubricant to at least one lubrication point, comprising a distributor body having an inlet opening for lubricant which is fluidically connected to at least one outlet passage, which opens into an outlet opening of the distributor body, a rotary valve which is rotatably mounted in the distributor body and which is adjustable between an open position of the rotary valve, in which the outlet passage is open in order to allow lubricant to pass through to the outlet opening, and a closed position of the rotary valve, in which the outlet passage is closed, a drive, in particular an electromotive drive, which is coupled to a control gear, comprising a control gearwheel having at least one control toothing section engageable with a toothing of the rotary valve to move the rotary valve between the open position and the closed position. In addition, the invention relates to a method for distributing lubricant to at least one lubrication point.

A technique facilitates greasing of valves on a well tree, e.g. a frac tree, according to a simple process which enables selected, individual valves to be greased when desired. In some applications, the greasing process may be automated and controlled via a greasing control system. According to an embodiment, a greasing system is connected with grease ports at a plurality of actuatable valves located in a well tree. The greasing system has a plurality of grease valves which may be associated with each of the actuatable valves, e.g. with each of the grease ports. A pump is used to pump grease to the grease valves and the grease valves are selectively actuated to open positions to provide controlled greasing of desired actuatable valves so as to remove debris from and to lubricate selected actuatable valves.