Abstract: A filter housing for containing a cartridge assembly having a filter cartridge secured to a filter cover, the filter housing has a peripheral wall extending around a longitudinal axis, and end wall secured to the peripheral wall, the filter housing defining a cavity partially enclosed by the peripheral wall and the end wall, the peripheral wall defining a cartridge-receiving section extending from the end wall along the longitudinal axis and sized for receiving the filter cartridge and a cover-receiving section extending along the longitudinal axis from the cartridge-receiving section to an open end of the filter housing opposed to the end wall and sized for receiving the filter cover, a portion of the cover-receiving section recessed radially outwardly from the cartridge-receiving section relative to the longitudinal axis, a lubricant outlet of the filter housing extending through the portion of the cover-receiving section of the peripheral wall.

Abstract: A filter assembly, has: a housing defining an internal volume and an outlet fluidly connectable to an oil system; a filter cartridge removably received within the internal volume of the housing; and an inlet conduit defining an inlet fluidly connectable to the oil system, the inlet conduit being in fluid flow communication with the internal volume of the housing, the inlet conduit having: a wall circumscribing a main flow passage from the inlet to the internal volume, and a sedimentation pocket defined by the wall, the sedimentation pocket extending downwardly away from the main flow passage and in a direction having a component parallel to a direction of a gravity when the filter assembly is in use.

Abstract: An oil supply system for supplying oil to a lubricating cavity of a gas turbine engine, the oil supply system has: a de-oiler having a de-oiler air-oil inlet, a de-oiler oil outlet hydraulically connected to the lubricating cavity, and a de-oiler air outlet in fluid flow communication with an environment outside of the oil supply system; and a closed-loop oil circuit including a main pump having a main pump inlet and a main pump outlet, the main pump outlet hydraulically connected to the lubricating cavity, a de-aerator having a de-aerator inlet hydraulically connected to a scavenge outlet of the lubricating cavity, a de-aerator air-oil outlet in fluid flow communication with the de-oiler inlet, and a de-aerator oil outlet hydraulically connected to the main pump inlet.

Abstract: A fluid filter arrangement, with protection against external contamination, the filter arrangement comprising: a fluid circulating system; a filter cartridge having an exterior surface; a housing having an internal fluid chamber surrounding the exterior surface of the filter cartridge, an open end through which the filter cartridge can pass along a housing axis; and a cover sealed over the open end of the housing in a closed position, the cover in an open position exposing the open end of the housing, the cover including a fluid passage in communication with the internal fluid chamber in the closed position, the cover fluid passage being in communication with the fluid circulating system in the closed position and in the open position.

Abstract: 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.

Abstract: A filter housing for containing a cartridge assembly having a filter cartridge secured to a filter cover, the filter housing has a peripheral wall extending around a longitudinal axis, and end wall secured to the peripheral wall, the filter housing defining a cavity partially enclosed by the peripheral wall and the end wall, the peripheral wall defining a cartridge-receiving section extending from the end wall along the longitudinal axis and sized for receiving the filter cartridge and a cover-receiving section extending along the longitudinal axis from the cartridge-receiving section to an open end of the filter housing opposed to the end wall and sized for receiving the filter cover, a portion of the cover-receiving section recessed radially outwardly from the cartridge-receiving section relative to the longitudinal axis, a lubricant outlet of the filter housing extending through the portion of the cover-receiving section of the peripheral wall.

Abstract: A filter assembly for an engine, has: a housing having a longitudinal axis and defining an internal volume, the housing having an open end; and a cartridge assembly receivable within the internal volume via the open end of the housing and securable to the housing, the cartridge assembly including a filter cartridge, a cover removably secured to the filter cartridge, and a sealing member between the cover and the filter cartridge, a locking engagement between the cover and the filter cartridge to limit an axial movement of the cover relative to the filter cartridge upon removal of the cartridge assembly from the housing.

Abstract: An oil supply system for supplying oil to a lubricating cavity of a gas turbine engine, the oil supply system has: a de-oiler having a de-oiler air-oil inlet, a de-oiler oil outlet hydraulically connected to the lubricating cavity, and a de-oiler air outlet in fluid flow communication with an environment outside of the oil supply system; and a closed-loop oil circuit including a main pump having a main pump inlet and a main pump outlet, the main pump outlet hydraulically connected to the lubricating cavity, a de-aerator having a de-aerator inlet hydraulically connected to a scavenge outlet of the lubricating cavity, a de-aerator air-oil outlet in fluid flow communication with the de-oiler inlet, and a de-aerator oil outlet hydraulically connected to the main pump inlet.

Abstract: A filter assembly for an engine, has: a housing having a longitudinal axis and defining an internal volume, the housing having an open end; and a cartridge assembly receivable within the internal volume via the open end of the housing and securable to the housing, the cartridge assembly including a filter cartridge, a cover removably secured to the filter cartridge, and a sealing member between the cover and the filter cartridge, a locking engagement between the cover and the filter cartridge to limit an axial movement of the cover relative to the filter cartridge upon removal of the cartridge assembly from the housing.

Abstract: A filter assembly for an engine, has: a housing having a longitudinal axis and defining an internal volume, the housing having an open end and defining an oil inlet and an oil outlet, the internal volume having a first zone and a second zone, the first zone in fluid communication with the oil inlet, the second zone in fluid communication with the oil outlet; a cartridge assembly having a filter cartridge, and a cover sealingly engageable to the housing to close the open end of the housing, the filter cartridge axially locked in the housing by the cover, the cover removably securable to the housing; and a sealing member between the housing and the cartridge assembly, the sealing member separating the first zone from the second zone such that the first zone communicates with the second zone through the filter cartridge.

Abstract: 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.

Abstract: An aircraft engine oil filler apparatus includes a filler tube configured to be received through a wall of an oil tank such that an open upper end of the filler tube is accessible from outside of the oil tank and a bottom end of the filler tube is disposed inside the oil tank, a valve received in the bottom end of the filler tube and movable between an open position in which the valve hydraulically connects the filler tube to the oil tank, and a closed position in which the valve hydraulically disconnects the filler tube from the oil tank, and a float disposed above the valve and operatively connected to the valve to move the valve from the open position to the closed position when oil inside the oil tank rises to a predetermined level. A method of operation of an oil filler apparatus is also described.

Abstract: A fluid filter arrangement, with protection against external contamination, the filter arrangement comprising: a fluid circulating system; a filter cartridge having an exterior surface; a housing having an internal fluid chamber surrounding the exterior surface of the filter cartridge, an open end through which the filter cartridge can pass along a housing axis; and a cover sealed over the open end of the housing in a closed position, the cover in an open position exposing the open end of the housing, the cover including a fluid passage in communication with the internal fluid chamber in the closed position, the cover fluid passage being in communication with the fluid circulating system in the closed position and in the open position.

Abstract: An aircraft engine oil filler apparatus includes a filler tube configured to be received through a wall of an oil tank such that an open upper end of the filler tube is accessible from outside of the oil tank and a bottom end of the filler tube is disposed inside the oil tank, a valve received in the bottom end of the filler tube and movable between an open position in which the valve hydraulically connects the filler tube to the oil tank, and a closed position in which the valve hydraulically disconnects the filler tube from the oil tank, and a float disposed above the valve and operatively connected to the valve to move the valve from the open position to the closed position when oil inside the oil tank rises to a predetermined level. A method of operation of an oil filler apparatus is also described.