A lubrication system comprises a lubricant reservoir, a motorized pump, a follower plate, a stationary rod, a movable sleeve, and a flexible connection. The motorized pump is disposed to pump fluid from the lubricant reservoir to lubricant work lines. The follower plate is situated within the lubricant reservoir. The stationary rod has a colored indicator portion. The movable sleeve disposed concentrically about the stationary rod. The flexible connection extends between the follower plate and the stationary colored rod, such that the flexible connection pulls the movable sleeve away from the stationary rod to reveal the colored indicator portion as the follower plate drops towards a bottom of the lubricant reservoir.

An oil tank fitted to a turbomachine, for example an aeroplane turbo-jet engine. The tank includes an inner chamber containing the oil of the turbomachine, a wall with an inner surface surrounding the inner chamber, and a capacitive device for measuring the oil level. The device includes at least one electrode and potentially two parallel electrodes forming the inner surface. These electrodes are immersed in the oil to measure the oil level by measuring capacitance. A method for manufacturing a tank in which the electrodes are printed on the wall.

A pump, such as a vacuum pump, includes at least one housing and a motor and oil reservoir disposed within the housing. The pump housing can include a bottom exterior surface and one or more side and/or front exterior surfaces that extend generally up from the bottom exterior surface. An oil drain port can be positioned at or near the intersection of the bottom exterior surface and the side or front exterior surface. The housing can include an interior bottom surface that defines at least a portion of a drain passageway for the pump and can be fluidicly coupled to the oil reservoir. At least a portion of the interior bottom surface can be angled downward at an acute angle to the horizontal towards the oil drain port to improve the draining and replacement of oil in the pump.

A lubricant bath structure includes a casing for storing a liquid lubricant, where: the casing is provided with a supply hole, a discharge hole, a part attachment hole, and a liquid level check hole that penetrate from inside to outside of the casing; the supply hole enables injecting the lubricant into the casing; the discharge hole enables discharging the lubricant in the casing; the part attachment hole is opened/closed by detaching/attaching a mechanism part that is to be detachably attached to an outside surface of the casing; and the liquid level check hole can be arranged at a position coincident with or lower than a lower edge of the part attachment hole, but higher than the discharge hole, and, during the discharge of the lubricant, it is possible to confirm that a liquid level of the lubricant has reached below the lower edge of the part attachment hole.

A smart system for oil delivery including a dispenser assembly, a pressure supply assembly, a gearbox assembly, and an electronic assembly. The dispenser assembly including a dispenser. The dispenser being an enclosure with a hollow interior with a valve located at one end. The hollow interior of the dispenser defining a reservoir for the storage of oil or other lubrication fluids. The interior of the dispenser further including a pressure supply assembly. The pressure supply assembly including a spring and a plunger that are oppositely located with respect to the valve within the interior of the dispenser. The electronic assembly includes a flow meter, a solenoid valve, and a microcontroller unit. The electric valve being actuated by the microcontroller unit to allow the pressure supply assembly to expel oil stored within the reservoir via the valve.

A valve device of a jet engine includes a body, a seat and a flow path between an inlet and an outlet that can be closed and opened. Depending on an actuating force that results from a fluid pressure at a front surface of the body facing the inlet, as well as from a closing force applied to the body, the body can be transferred between open and closed states, and can be transferred into an operational state in which the flow path is opened by a setting device depending on an ambient pressure. The flow path can be opened via the setting device such that a flow cross-section of the flow path corresponds to at least 80% of the flow cross-section of the flow path in the area of the inlet across the entire extension of the flow path between the inlet and the outlet.

A lubricating oil reservoir has an open end closed by a cap removably coupled to the open end. The cap is formed with a sensor located in the lubricating oil reservoir. The sensor is for sensing the presence of lubricating oil that fills the lubricating oil reservoir to a recommended oil level for providing machine lubrication, and the non-presence of lubricating oil that does not fill the lubricating oil reservoir to the recommended oil level, and a signal apparatus is operatively coupled to the sensor for issuing a first stimulus in response to the sensor sensing the presence of lubricating oil for identifying a normal lubricating oil level condition, and for issuing a second different stimulus in response to the sensor sensing the non-presence of lubricating oil for identifying a low oil level condition.

The present invention proposes a structural unit (21) for arrangement on a hydraulic fluid tank of a jet engine having a vision device (23) and a sensor device (25), which can independently of one another determine a level of a hydraulic fluid present in a hydraulic fluid tank (1) when the structural unit (21) is arranged on a hydraulic fluid tank. A fastening device (27) is provided to fix the structural unit (21) on the hydraulic fluid tank.

A motor control system for a lubricant pump motor comprises a pump system power input, a motor drive, a current sensor, a lubrication controller, and a drive controller. The pump system power input is configured to supply system power. The motor drive is configured to drive the lubricant pump motor using the system power. The current sensor is disposed between the pump system power input and the motor drive to sense an input current of the system power. The lubrication controller configured to provide motor activation signals. The drive controller is disposed to receive the motor activation signals via an isolated digital input, and to control the motor drive as a function of the sensed input current and a user-defined current set-point, in response to the activation signals.

In one embodiment, there is provided a dock for a replaceable fluid container for an engine, the fluid container having: a fluid reservoir; and at least one fluid port having a coupling adapted to couple with a fluid circulation system associated with the engine; the dock having: a fastening mechanism configured to cooperate with the container such that, as the container is inserted into the dock, the fastening mechanism acts first to seat the fluid container in the dock but in an undocked condition and then, as the container is inserted further into the dock, acts to bring the fluid container into an engaged condition in which the fluid container is docked with a docking interface of the dock.