A protection mechanism for a lubricant reservoir is mounted within a valve protection chamber disposed on an actuator. The protection mechanism includes a valve actuating plate and an elastic member biasing the valve actuating plate upwards. The actuator is pushed upwards by a rising level of lubricant as the lubricant reservoir is filled. When the reservoir is full, the actuator causes the valve actuating plate to contact a valve stem. The valve actuating plate pushes the valve stem up to shut off a flow of lubricant to the reservoir through the shut off valve. During an overfill event the actuator shifts upward due to the rising level of the lubricant in the reservoir. As the actuator shifts upward, the elastic member compresses such that valve actuating plate remains static relative to the lubricant reservoir as actuator rises.

A vent valve for an actuator disposed in a lubricant reservoir includes a bore extending through the plate, a seal disposed within the bore proximate a top surface of the plate, a retaining member extending about a lower opening of the bore, and a ball disposed within the bore between the seal and the retaining member. The vent valve is configured to allow air to pass from a lower portion of a lubricant reservoir as lubricant fills the lower portion. The vent valve also allows air to pass to the lower portion of the lubricant reservoir as lubricant is dispensed from the reservoir. The vent valve closes when the lubricant level reaches the vent valve, thereby preventing lubricant from flowing through the vent valve. The sealed vent valve allows the actuator to rise in response to a rising lubricant level.

An autofill shutoff valve includes a valve body mounted to a lubricant reservoir and secured to a fill tube extending into the reservoir. The autofill shutoff valve has a valve stem extending through the valve body and into the lubricant reservoir. The valve stem is actuated by a plate disposed within the reservoir from a first position, wherein lubricant flows from a lubricant inlet to a lubricant outlet through the valve body, to a second position, wherein the valve stem blocks the flow of lubricant through the valve body. The autofill shutoff valve provides lubricant directly to the reservoir, thereby eliminating external plumbing and the autofill shutoff valve also prevents overfill of the reservoir by cutting off the flow when the reservoir is full.

A centerfill assembly for a lubricant reservoir includes a hollow tube for receiving lubricant from the top of the reservoir and loading the lubricant into the reservoir near the bottom of the reservoir. Loading the lubricant near the bottom of the reservoir introduces lubricant near where the stirring paddles mix the lubricant and near where the lubricant is loaded to the lubricant pump. Adding the lubricant near where the pumps load and near the stirring paddles helps to eliminate air pockets in the lubricant. In addition, having the centerfill rod minimizes exterior plumbing and allows for the mounting of valves on the fill line

In the method according to the invention for operating an oil level regulator on a compressor, the oil level regulator monitors an oil level in the compressor and causes oil to be refilled when an oil deficiency is recognized. The oil level regulator provides operating recognition of the compressor in which a check is made as to whether the compressor is in a switched-on or switched-off state, the refilling with oil being carried out only when the compressor is in the switched-on state.

A fluid management system for a drivetrain includes a first reservoir, a second reservoir, a main suction line, and a second suction line. The first reservoir is positioned in a lower portion of a transmission. The first reservoir has a preselected fluid level. The second reservoir is positioned in a lower portion of the transmission. The second reservoir is separated from the first reservoir by a barrier having an opening. The main suction line has an opening positioned in a lower portion the first reservoir below the preselected fluid level. The second suction line has an opening positioned in a lower portion of the second reservoir.

System for maintaining a turbine engine comprising said turbine engine of an aircraft comprising: an oil reservoir, a sensor able to measure an oil level in the oil reservoir, a transmission device, such as electrical wires, wireless transmitter circuit, etc., for transmitting a signal coupled to said sensor in order to transmit information relating to an oil level measured by said sensor, communication means, such as a display or a near field communications circuit coupled to said transmission devices, for communicating to the outside of the aircraft information representing an oil level measured by said sensor. The maintenance system further comprises a mobile apparatus able to communicate with said communication means and comprising a display for displaying said information representing an oil level to an operator situated on the ground outside the aircraft.

An oil level sensor assembly for an oil tank includes a cell with a first set of holes along the cell, an oil level sensor within the cell that is configured to be inserted into and removed from a bottom of the cell, and a ball valve column within the cell and adjacent to the oil level sensor. The ball valve column is rotatable, has ball valves that correspond with the first set of holes along the cell, and is configured such that the ball valve column is rotatable to an open position aligning the ball valves with the first set of holes to allow oil to access the oil level sensor and rotatable to a closed position misaligning the ball valves with the first set of holes to prevent oil from accessing the oil level sensor.

An oil level sensor assembly for an oil tank includes a cell with a first set of holes along the cell, an oil level sensor within the cell that is configured to be inserted into and removed from a bottom of the cell, and a ball valve column within the cell and adjacent to the oil level sensor. The ball valve column is rotatable, has ball valves that correspond with the first set of holes along the cell, and is configured such that the ball valve column is rotatable to an open position aligning the ball valves with the first set of holes to allow oil to access the oil level sensor and rotatable to a closed position misaligning the ball valves with the first set of holes to prevent oil from accessing the oil level sensor.

A motor base has a body, a motor mount, a filter mount, a through hole, a passage, a flange, and at least one overflow hole. The motor mount is formed on the top surface of the body. The filter mount is formed on the bottom surface of the body. The through hole is defined through the body. The flange is formed on the bottom surface of the body and is arranged around the filter mount. The at least one overflow hole is defined radially through the flange.