The work equipment for the motor grader includes: a drawbar having a drawbar plate; a bearing having an outer ring and inner ring, the outer ring being fixed to a lower surface of the drawbar plate and the inner ring, disposed inside the outer ring ring; a circle having a circle plate that is fixed to a lower end of the inner ring over the peripheral direction; a blade supported by the circle; a peripheral-direction pipe extending in the peripheral direction of the outer ring along a peripheral surface of the outer ring and connected to an end portion of an outer peripheral side of the plurality of lubricant supply holes; and the lubricant inlet port connected to the peripheral-direction pipe and capable of introducing a lubricant oil from an outside.

A gas turbine engine includes: a fan that is in front of a compressor and rotates in association with a rotating shaft; a casing including an inner shell and an outer shell and a bypass passage; bearings inside the inner shell; an oil mist generator that is outside the outer shell and generates oil mist by mixing oil with compressed air extracted through an extraction port of the compressor; an air pipe through which the compressed air extracted from the compressor is guided to the oil mist generator; and an oil mist pipe through which the oil mist generated by the oil mist generator is guided to the bearings. At least one of the air pipe and the oil mist pipe includes a heat exchanger that is in the bypass passage and is cooled by the air flowing through the bypass passage.

A lubricator for a plunger lift system includes a tubular body, a shift rod housing, a first spring, and a second spring. The shift rod housing disposed in the tubular body and has a chamber. The shift rod has a first portion slidably disposed in the chamber and a second portion projecting from a first end of the shift rod housing. A distal end of the second portion of the shift rod is engageable with a shift valve of a bypass plunger. The first spring disposed in the chamber to absorb an impact force applied to the shift rod by the shift valve. The second spring disposed in the tubular body between a portion of the shift rod housing and a portion of the tubular body to absorb an impact force applied to the shift rod housing by a plunger body of the bypass plunger.

A lubricant fitting unit is for supplying lubricant to an item of equipment and includes a housing connectable with the item of equipment and providing a lubricant flow path fluidly coupleable with the item of equipment. A lubricant flowmeter is connected to the lubricant flow path and measures lubricant flow through the flow path. The fitting unit preferably includes an integrated condition monitoring system coupled to the housing, which preferably includes a temperature sensor and/or a vibration sensor. Further, the fitting unit also preferably includes a wireless data transmission device for transmitting signals received from the integrated condition monitoring system to a controller device. Also, the fitting unit may include an energy harvester mounted within the lubricant flow path for converting a portion of the kinematic energy of the lubricant flowing through the lubricant flow path into power for recharging a power unit of the monitoring device.

A system includes a bearing, a lubricant line, a vessel and a sensor. The lubricant line is designed to introduce lubricant from a bearing gap of the bearing into the vessel. The sensor is designed to measure at least one physical variable of lubricant that is situated in the vessel. The vessel includes an outlet or overflow. The system includes a lubricant sump and a device for introducing lubricant from the sump into the bearing gap of the bearing.

An apparatus and a method are shown for removing or moving a viscous fluid such as grease from a first unit such as a bearing e.g. a ball bearing to a second unit via a hose or pipe. The apparatus includes a hose or pipe (7) through which the viscous fluid is pumped during operation from an outlet (11) of the first unit (1) to an inlet (10) of the second unit (2), wherein the apparatus further includes a pump connected to the hose or pipe (7) in such a way that the viscous fluid during operation is moved through the hose or pipe (7), and the hose or pipe (7) includes an inlet (8) for gas such as air, and the flow of gas through the inlet (8) is controlled by a valve (9).

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.

A lubricating oil station having a pump that pumps oil into a bearing shell, wherein the quantity of oil is controlled by designing the pump with control of the rotational speed, the rotational speed being controlled by a control unit.

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.

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.