An apparatus and method for detecting an initial lubrication of a moving component including an ultrasonic sensor for detecting an ultrasonic output signal from the moving component and a processor for operating on the output signal. The processor determines if there has been an initiation of a lubrication operation. After identifying the initiation of the lubrication operation, the processor monitors the ultrasonic output signal received from the ultrasonic sensor to detect a momentary increase in the amplitude of the ultrasonic output signal above a level that indicates a need for lubrication, and which is indicative of an initial interaction between a lubricant and the moving component. Upon detecting the momentary increase in the amplitude, the processor tracks a progress of the lubrication operation by detecting for a sustained decrease in the amplitude of the ultrasonic output signal received from the ultrasonic sensor.

A device for lubricating and cooling a turbomachine rolling bearing is at least partially annular. The device comprises a first duct and a second duct inclined with respect to the first duct. The first duct is configured to be in thermal contact with an outer ring of the rolling bearing that at least partially surrounds same. The second duct is fluidically connected to the first duct. The first duct is configured to circulate the lubricant for cooling the outer ring, towards a discharge outlet of the lubricant. The second duct is configured to eject the lubricant through a lubrication outlet towards the rolling bearing.

A lubrication system for a wind turbine is provided, the lubrication system including a lubricant consumer to which fresh lubricant is supplied and out of which used lubricant is extracted, a pump for pumping fresh lubricant to the lubricant consumer, a waste lubricant collector where used lubricant can flow after being extracted from the lubricant consumer, and a plurality of containers delivering fresh lubricant to the lubrication system.

A gas turbine engine includes: a main passage through which compressed air extracted from a compressor is guided to a bearing; and an oil supply device that includes an oil tank storing oil and supplies the oil to the main passage through which the compressed air flows to generate oil mist. The oil supply device includes: a pressure reducer disposed at the main passage; a bypass passage that bypasses the pressure reducer and connects an upstream passage and a downstream passage; a holding chamber disposed at the bypass passage and having a predetermined volume; a switching mechanism that permits or blocks communication between the holding chamber and the oil tank, communication between the holding chamber and the upstream passage, and communication between the holding chamber and the downstream passage; and a controller that controls the switching mechanism.

A rotary machine system includes a rotary electric machine, a rotary machine, a first supply line and a second supply line through which the lubricating oil is supplied to the rotary machine bearing, a first discharge line and a second discharge line through which the lubricating oil is discharged downward from the rotary machine bearing, and a lower discharge line through which the lubricating oil discharged from the first discharge line and the second discharge line flows toward a discharge destination. The lower discharge line has a first connecting portion connected to a lower end of the first discharge line and a second connecting portion connected to a lower end of the second discharge line, and extends such that the lubricating oil heads for the discharge destination through the first connecting portion from the second connecting portion.

A flushing method for a lubricating oil system includes a step of performing precedent inside oil flushing for bearing box, by connecting an oil supply pipe and a flushing apparatus mounted to a bearing box to each other by a bypass pipe while bypassing an internal pipe that is provided in the bearing box and introduces an oil supplied from the oil supply pipe to a part between a rotor of a turbine and a bearing, supplying the oil from the oil supply pipe to the flushing apparatus through the bypass pipe, and injecting the oil from the flushing apparatus into the bearing box, to thereby perform oil flushing for the inside of the bearing box; and a final oil flushing step of supplying the oil from the oil supply pipe to an internal pipe, to thereby perform oil flushing for the inside of the lubricating oil system, after the step of performing precedent inside oil flushing for bearing box.

A lubricating device of a power transmitting system having a structural member. The lubricating device includes an oil piping assembly fixed to the structural member at a plurality of positions and having an oil passage through which a lubricant oil flows. The oil piping assembly is a resin piping assembly including a plurality of divisional components which cooperate to define a circumference of the oil passage along a length of the oil passage and which are formed of a resin material. The divisional components have respective interfacial surfaces and are bonded together with interfacial surfaces thereof being held in contact with each other. The divisional components of the resin piping assembly include a base divisional component provided with a plurality of fixing portions, and the resin piping assembly is fixed to the structural member at the plurality of positions through only the fixing portions.

A lubricating oil tank includes: a tank casing having an introduction part into which lubricating oil is introduced and a discharge part through which the lubricating oil is discharged; a plurality of receiving parts which are disposed between the introduction part and the discharge part in the tank casing and which is configured to receive the lubricating oil introduced from the introduction part: and a lubricating oil delivery part which is configured to deliver the lubricating oil from one of the plurality of receiving parts to another one of the plurality of receiving parts between the plurality of receiving parts.

A bearing lubricator for lubricating a plurality of device bearings in a device includes a solitary monitored bearing and at least one unmonitored bearing. The bearing lubricator includes a reservoir configured to contain lubricant, a plurality of conduits connecting the reservoir to the plurality of bearing, and a mechanism connected to the reservoir for advancing the lubricant from the reservoir to the plurality of device bearings when actuated. The bearing lubricator further includes a solitary sensor for sensing a variable of the monitored bearing and a controller. The controller stores a triggering value of the variable of the monitored bearing. The mechanism advances a substantially identical quantity of the lubricant from the reservoir to each of the plurality of bearings when a signal indicative of the variable is advanced to the controller and when that signal indicates the triggering value of the variable has been met.

A gear box includes a casing having an interior. A rotating component is arranged in the interior of the casing. A bearing including a rotating element, and a fixed element is connected with the casing in the interior. A submersible pump is arranged in the interior of the casing. The submersible pump includes a first housing portion extending about the rotating component fixedly mounted to the casing at the interior. A second housing portion is fixedly mounted to the casing at the interior and is aligned with the first housing portion. The first and second housing portions form a lubricant reservoir which holds lubricant. An impeller is mounted to the rotating component and arranged in the lubricant reservoir. One of the first and second housing portions includes an outlet through which the pumped lubricant is directed toward the rotating element.