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A lubrication system for a gas turbine engine including at least one porous element located in a cavity containing at least one rotating component receiving a flow of the lubricant, the porous element being located across a path taken by a portion of the lubricant expelled from the at least one resp

A lubrication system for a gas turbine engine including at least one porous element located in a cavity containing at least one rotating component receiving a flow of the lubricant, the porous element being located across a path taken by a portion of the lubricant expelled from the at least one respective rotating component such that the portion of the lubricant circulates therethrough, the at least one porous element being made of a material resistant to a temperature of the lubricant, the at least one porous element reducing a velocity of the portion of the lubricant circulating therethrough.

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1. A lubrication system for a gas turbine engine, the lubrication system comprising: a supply source containing a lubricant;at least one partial or complete enclosure including a housing defining therewithin a cavity containing at least one respective rotating component receiving a flow of the lubri

1. A lubrication system for a gas turbine engine, the lubrication system comprising: a supply source containing a lubricant;at least one partial or complete enclosure including a housing defining therewithin a cavity containing at least one respective rotating component receiving a flow of the lubricant;a pressure system including a supply fluid connection defined between the supply source and each cavity, the pressure system flowing the lubricant from the supply source to each rotating component;a scavenge system including a scavenge fluid connection defined between each cavity and the supply source, the scavenge system scavenging the lubricant from each cavity; andat least one porous element located in the cavity, the porous element extending across a path taken by a portion of the lubricant expelled from the at least one respective rotating component such that the portion of the lubricant circulates therethrough, with at least one of the at least one porous element spanning across a drain of the cavity in communication with the scavenge fluid connection so as to receive the expelled lubricant thereon, each porous element being made of a material resistant to a temperature of the lubricant and reducing a velocity of the portion of the lubricant circulating therethrough. 2. The lubrication system as defined in claim 1, wherein the at least one enclosure includes a casing of an accessory gearbox, the at least one respective rotating component including meshed gears and/or an air/oil separator driven by a shaft of the accessory gearbox. 3. The lubrication system as defined in claim 1, wherein the at least one enclosure includes a bearing cavity, and the at least one rotating component includes a bearing. 4. The lubrication system as defined in claim 1, wherein the at least one porous element is provided over a surface of a baffle extending within the cavity and/or on a surface of a wall defining the enclosure and/or directly on, and substantially covering, another solid redirecting surface of the housing. 5. The lubrication system as defined in claim 1, wherein the at least one porous element includes at least first and second porous elements with a density of the first porous element being higher than that of the second porous element, the first porous element receiving lubricant having a higher proportion of air therein and/or a higher velocity than that received by the second porous element. 6. The lubrication system as defined in claim 1, wherein the at least one porous element includes a mesh material and/or an open cell foam. 7. The lubrication system as defined in claim 1, wherein the material is resistant to a temperature of at least 300° F. 8. The lubrication system as defined in claim 1, wherein the material includes aluminium. 9. The lubrication system as defined in claim 1, wherein the at least one porous element has a density of at least 10 pores/inch and at most 40 pores/inch. 10. The lubrication system as defined in claim 1, wherein the at least one porous element has a density from about 6% to about 8%. 11. The lubrication system as defined in claim 1, wherein the housing and the at least one porous element are rotationally stationary. 12. The lubrication system as defined in claim 1, wherein the at least one porous element is located in the cavity without substantially filling the cavity. 13. A gearbox comprising: a plurality of rotating meshed gears transferring power from a driving shaft to a driven shaft;a casing enclosing a gearbox cavity surrounding the meshed gears;a lubrication system including at least one supply fluid connection providing lubricant to the gearbox cavity and to the meshed gears and at least one scavenge fluid connection circulating the lubricant out of the gearbox cavity; andat least one porous element extending within the gearbox cavity, the porous element extending across a path of a portion of the lubricant being projected by the rotating meshed gears, with at least one of the at least one porous element spanning across a drain of the gearbox cavity in communication with the at least one scavenge fluid connection so as to receive the lubricant projected by the rotating meshed gears, the at least one porous element reducing a kinetic energy of the lubricant circulating therethrough to facilitate direction of the lubricant toward the at least one scavenge fluid connection. 14. The gearbox as defined in claim 13, wherein the at least one porous element is provided over a surface of a baffle extending within the gearbox cavity and/or on a surface of an inner wall of the casing and/or directly on, and substantially covering, a solid redirecting surface of the casing and/or across the gearbox cavity in between adjacent but spaced apart ones of the gears. 15. The gearbox as defined in claim 13, wherein the at least one porous element includes at least first and second porous elements with a density of the first porous element being higher than that of the second porous element, the first porous element receiving lubricant having a higher proportion of air therein and/or flowing faster than that received by the second porous element. 16. The gearbox as defined in claim 13, wherein the at least one porous element includes a mesh material and/or an open cell foam. 17. The gearbox as defined in claim 13, wherein the at least one porous element is made of a material resisting a temperature of at least 300° F. 18. The gearbox as defined in claim 13, wherein the at least one porous element has a density of at least 10 pores/inch and at most 40 pores/inch.