An arrangement includes a first component having a first groove and a second groove. The arrangement further includes a second component and a fluid transfer ring fixed to the second component. The fluid transfer ring engages with a first wall and a second wall in the first groove such that the fluid transfer ring and the first groove form a first cavity. The first component and the second component are rotatable relative to each other. The fluid transfer ring further engages with a third wall in the second groove such that the fluid transfer ring and the second groove form a second cavity.

A lubricating system that includes a manifold with one or more manifold ports that permit a flow of lubricant through the manifold. The manifold is configured for removable attachment to another manifold such that any number of manifold can be joined together. An ejector is removably attached to the manifold. The ejector has one or more projections configured for insertion into each of the one or more manifold ports in the manifold, such that the ejector is configured to receive the flow of lubricant from the manifold, via the one or more projections, and to discharge lubricant periodically, or at preset intervals, from one or more outlet ports of the ejector. A locking key is disposed between the manifold and ejector. The locking key is configured such that movement of the locking key attaches or detaches the ejector from the manifold.

A lubricating system that includes a manifold with one or more manifold ports that permit a flow of lubricant through the manifold. The manifold is configured for removable attachment to another manifold such that any number of manifold can be joined together. An ejector is removably attached to the manifold. The ejector has one or more projections configured for insertion into each of the one or more manifold ports in the manifold, such that the ejector is configured to receive the flow of lubricant from the manifold, via the one or more projections, and to discharge lubricant periodically, or at preset intervals, from one or more outlet ports of the ejector. A locking key is disposed between the manifold and ejector. The locking key is configured such that movement of the locking key attaches or detaches the ejector from the manifold.

An integrated lubrication system and an engine that includes the integrated lubrication system. The system has a first and a second lubrication supply line and one or more spray bars. The first lubrication supply line extends radially inward toward a central axis of the engine, has a first plurality of jet outlets, and is configured to deliver a lubrication fluid to a first location on one or more engine components. The second lubrication supply line extends parallel to the central axis, has a second plurality of jet outlets, and is configured to deliver the lubrication fluid to a second location on the one or more engine components. The first lubrication supply line is configured to lubricate the one or more engine components in a first engine power condition and the second lubrication supply line is configured to lubricate the one or more engine components in a second engine power condition.

Provided is a grease collection arrangement for collecting waste grease from a grease lubricated rotor blade pitch bearing of a wind turbine, whereby the grease collection arrangement includes at least one waste grease collector and multiple extraction tubes, wherein each one of the multiple extraction tubes is connected to the at least one waste grease collector and the multiple extraction tubes are configured to being connected to multiple grease outlets of the rotor blade pitch bearing, whereby the grease collection arrangement is configured such that the waste grease from the rotor blade pitch bearing can flow into the at least one waste grease collector by gravity and centrifugal forces.

Provided is a grease collection arrangement for collecting waste grease from a grease lubricated rotor blade pitch bearing of a wind turbine, whereby the grease collection arrangement includes at least one waste grease collector and multiple extraction tubes, wherein each one of the multiple extraction tubes is connected to the at least one waste grease collector and the multiple extraction tubes are configured to being connected to multiple grease outlets of the rotor blade pitch bearing, whereby the grease collection arrangement is configured such that the waste grease from the rotor blade pitch bearing can flow into the at least one waste grease collector by gravity and centrifugal forces.

A lubricating tube and a lubrication system are configured to lubricate an apparatus having a rolling component. The lubrication system includes a fluid reservoir containing a fluid, a fluid line coupled to the fluid reservoir; and the lubricating tube, which is disposed between the fluid line and the rolling component. The lubricating tube includes a rigid cylindrical body surrounding a cavity and having an outer circumferential surface. An inlet of the lubricating tube is coupled to the fluid line and provides fluid communication between the fluid line and the cavity. A plurality of ports is disposed on the outer circumferential surface and is configured to dispense the fluid to the rolling component. A location of each port of the plurality of ports from the inlet is customizable.

A lubricating tube and a lubrication system are configured to lubricate an apparatus having a rolling component. The lubrication system includes a fluid reservoir containing a fluid, a fluid line coupled to the fluid reservoir; and the lubricating tube, which is disposed between the fluid line and the rolling component. The lubricating tube includes a rigid cylindrical body surrounding a cavity and having an outer circumferential surface. An inlet of the lubricating tube is coupled to the fluid line and provides fluid communication between the fluid line and the cavity. A plurality of ports is disposed on the outer circumferential surface and is configured to dispense the fluid to the rolling component. A location of each port of the plurality of ports from the inlet is customizable.

A lubricant injector includes an injector body having an inlet port fluidly coupleable with a lubricant supply, an outlet port fluidly coupleable with a lubrication point, a piston chamber and a valve chamber. A piston is disposed within the piston chamber and defines a measuring section and an actuating section, the piston being linearly displaceable along an axis through the piston chamber so as to inversely vary the volume of the chamber measuring section and the volume of the chamber actuating section. A valve member disposed within the valve chamber is displaceable along an axis through the valve chamber between a first position, at which the inlet port is fluidly coupled with the piston chamber actuating and measuring sections, and a second position at which the inlet port is fluidly coupled with the piston chamber actuating section and the outlet port is fluidly coupled with the piston chamber measuring section.

Provided is a grease collection arrangement for collecting waste grease from a grease lubricated rotor blade pitch bearing of a wind turbine, whereby the grease collection arrangement includes at least one waste grease collector and multiple extraction tubes, wherein each one of the multiple extraction tubes is connected to the at least one waste grease collector and the multiple extraction tubes are configured to being connected to multiple grease outlets of the rotor blade pitch bearing, whereby the grease collection arrangement is configured such that the waste grease from the rotor blade pitch bearing can flow into the at least one waste grease collector by gravity and centrifugal forces.