A fluid system of a machine. The fluid system includes a fluid reservoir, a pump coupled to the fluid reservoir, a filter coupled to the pump and a valve assembly. The valve assembly includes a first port, a second port coupled to the first port and to the fluid reservoir, a third port coupled to the first port, and a first check valve positioned between the first port and the second port. The fluid system further includes a second check valve positioned between the filter and the third port.

The invention is directed to a divider block assembly made from one piece of material. Traditional divider blocks require modular sections so that piston alignment can be calibrated precisely. The current invention uses replaceable pistons and sleeves that are suitable for use at high fluid pressures. The use of these pistons also allows for a single, bodied, one-piece, metal divider body, rather than the conventional multiple block divider blocks, which allows for a more efficient manufacturing method and stronger, more reliable, and more efficient lubricant dispensing system. The use of any of these aspects separately can improve performance, and not all are required in every embodiment.

The invention is directed to a divider block assembly made from one piece of material. Traditional divider blocks require modular sections so that piston alignment can be calibrated precisely. The current invention uses replaceable pistons and sleeves that are suitable for use at high fluid pressures. The use of these pistons also allows for a single, bodied, one-piece, metal divider body, rather than the conventional multiple block divider blocks, which allows for a more efficient manufacturing method and stronger, more reliable, and more efficient lubricant dispensing system. The use of any of these aspects separately can improve performance, and not all are required in every embodiment.

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.

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 method involves directing lubricant to different consumers which are to be monitored via their lubricant. The lubricant is drained through drain lines connected to the consumers and directed to a tank. At least some the lubricant in the drain lines or the consumers is extracted into extraction lines. Flow from the extraction lines is selectively directed to a measurement device, which then measures a characteristic of the lubricant. A system for carrying out such a method is also provided, wherein the system includes a multiplexer for selectively directing flow from the extraction lines.

The present invention relates to an electric grease barrel pump that has a single pumping structure and has an automatic shift function performed by a manual operation of a valve for switching a grease supply line. The electric grease barrel pump comprises: a pumping means; a driving means; a supply pipe through which the grease is discharged from the pumping means; a distribution valve installed at an end of the supply pipe in a direction in which the grease is discharged; a magnetic switch, installed at a movable portion of the distribution valve, for outputting a signal for supplying the grease to a selected grease supply target of the plurality of grease supply targets according to an operating position of the movable portion; and a control unit for controlling the driving means to adjust grease discharge capability of the pumping means according to the signal of the magnetic switch.

The present invention relates to an electric grease barrel pump that has a single pumping structure and has an automatic shift function performed by a manual operation of a valve for switching a grease supply line. The electric grease barrel pump comprises: a pumping means; a driving means; a supply pipe through which the grease is discharged from the pumping means; a distribution valve installed at an end of the supply pipe in a direction in which the grease is discharged; a magnetic switch, installed at a movable portion of the distribution valve, for outputting a signal for supplying the grease to a selected grease supply target of the plurality of grease supply targets according to an operating position of the movable portion; and a control unit for controlling the driving means to adjust grease discharge capability of the pumping means according to the signal of the magnetic switch.

Some embodiments of the present disclosure provide a power system and a fracturing device. The power system includes an oil tank, a reduction gearbox and a hydraulic system. The reduction gearbox is provided with a lubricating system, and the lubricating system is communicated with the oil tank. The hydraulic system includes a hydraulic actuating member, and the hydraulic actuating member is communicated with the oil tank.

A gyrostabiliser having a vacuum chamber assembly is disclosed. The gyrostabilizer can have a flywheel enclosed within a vacuum chamber formed by a housing. The flywheel shaft can be fixed to or integral with the flywheel and located relative to the housing by upper and lower spin bearings which permit rotation of the flywheel about the spin axis.