An arrangement forming a lubricant circuit includes at least one lubricant line, at least one line branching that branches the lubricant line into a first branch and a second branch. The arrangement further includes at least one lubricant reservoir integrated into the first branch, and at least one line junction where the first branch and the second branch merge. The first branch is lockable and releasable.

Apparatus for collecting and measuring oil drained from a vehicle includes a receptacle and a valve. The receptacle includes a wide upper oil collection portion with an upper receptacle wall configured to collect and contain oil drained from a vehicle, and includes a narrower lower outlet portion having a lower receptacle wall configured to allow the oil to drain from the receptacle via a gravity feed. The receptacle has markings arranged on at least one of the upper receptacle wall or the lower receptacle wall and configured to measure the oil drained and collected from the vehicle. The valve includes an upper valve inlet and coupling portion configured to connect to the narrower lower outlet portion of the receptacle and allow the oil to drain into the valve, includes a valve opening/closing portion configured either to open and allow the oil to drain through the valve or to close and allow oil to collect in the receptacle, and includes a lower valve outlet and coupling portion configured to connect to a tube or oil basin/reservoir to allow the oil to drain from the valve into the tube or oil basin/reservoir.

A lubricant filler for a lubricant tank of an aircraft engine comprises a filler tube having an upper portion to be disposed outside the volume of the tank and a lower portion to be disposed inside the volume. First and second openings are respectively provided in the upper and lower portions. An oil volume sensor is received in the filler tube through the first opening. A valve is connected to the filler tube and movable between an open position in which the valve provides a fluid connection into the lower portion via the second opening, and a closed position in which the valve blocks the fluid connection into the lower portion via the second opening. A third opening, smaller than both the first and second openings, defined one of: a) through a sidewall of the lower portion of the filler tube to provide a fluid connection between the volume and the lower portion when the lubricant filler assembly is attached to the lubricant tank, and b) through the valve to provide the fluid connection when the lubricant filler assembly is attached to the lubricant tank.

An oil supply device includes an oil pump and an oil control valve. The oil control valve is connected to a control oil chamber of the oil pump via a control oil passage that includes an oil descent passage and an oil rise passage. One end of the oil descent passage on the control oil chamber side is disposed at a position closer to a bottom of the vehicle than the other end on the oil control valve side. The oil rise passage is disposed at a position closer to the control oil chamber side than the oil descent passage. One end of the oil rise passage on the control oil chamber side is disposed at a position closer to a top of the vehicle than the other end on the oil control valve side.

An example of an emergency lubrication system for an aircraft includes a lubricant tank configured to supply a lubricant to a gearbox of the aircraft, a tube coupled between the lubricant tank and the gearbox and comprising a check ball disposed within the tube, a first lubricant line coupled to the tube and a first inlet of the gearbox, and a second lubricant line coupled to the tube and a second inlet of the gearbox.

A lubrication system includes a primary lubrication system for a gearbox of the aircraft, the primary lubrication system comprising a first lubricant tank, and an emergency lubrication system for the gearbox. The emergency lubrication system includes a second lubricant tank coupled to a gearbox of an aircraft, a passive thermostat coupled between the second lubricant tank and the gearbox via a lubricant line, a conductor coupled between the passive thermostat and the gearbox and configured to conduct heat from the gearbox to the passive thermostat, and wherein the passive thermostat is configured to open in response to the conductor being exposed to a temperature that exceeds a threshold temperature.

A powertrain component (21, 22, 23) for a wind turbine (100) is provided, comprising a powertrain component housing (20) with at least one rotating part (49) and a dry sump 5 lubrication system for lubricating the rotating part (49). The lubrication system comprises a dry sump lubricant tank (51, 52, 53) and a pump (60) for pumping the lubricant from the tank (51, 52, 53) towards a lubricant release point, the lubricant release point being provided at a level above at least part of the rotating part (49) for receiving the lubricant from the tank (51, 52, 53) and allowing the lubricant to lubricate the rotating part (49). 10 The tank (51, 52, 53) is integrated in or directly attached to the powertrain component housing (20) at a level below the at least one rotating part (49).

An oil supply device configured to supply oil to a turbocharger of an engine includes a first oil pump, a second oil pump, a first valve, and a second valve. The first oil pump is coupled to a bearing unit of the turbocharger via an oil supply path, and configured to supply oil to the bearing unit. The second oil pump is coupled to the bearing unit via an oil discharge passage, and configured to suck oil from the bearing unit. The first valve is provided in the oil supply path. The first valve is switchable from a connected state to a disconnected state when the engine is to be stopped. The second valve is provided in the oil discharge passage. The second valve is switchable from a connected state to a disconnected state when the engine is to be stopped.

A drive device includes a rotor, a stator, a housing including an accommodation portion to store oil, and a pump driven through a motor shaft. The pump includes an external gear fixed to an end on one side in an axial direction of the motor shaft, an internal gear surrounding a radial outside of the external gear and meshing with the external gear, a pump room accommodating the internal gear and the external gear, a suction port through which the oil is to be sucked into the pump room, and a discharge port through which the oil is to be discharged from the pump room. The housing includes an outer lid in which the pump room is provided. The outer lid includes a shaft insertion hole that penetrates the outer lid from a surface on the other side in the axial direction of the pump room to a surface on the other side in the axial direction of the outer lid, the motor shaft being inserted into the shaft insertion hole, and a support defining at least a portion of the surface on the other side in the axial direction of the pump room and at least a portion of a radially inside surface of the shaft insertion hole. The support journals the motor shaft on the radial outside of the motor shaft.

A system and method of performing maintenance on a wing cock valve coupled to a pressurized gas delivery pipe is provided. The method removing a plug from a port on the valve. A threaded portion of a grease tool is coupled to the port, the grease tool having a body coupled to the threaded portion and a fitting on an opposite end, the fitting, body and threaded portion defining a flow path. A hose is coupled on a grease gun to the fitting; and actuating the grease gun to flow a grease from a reservoir through the flow path and into the valve.