Filter assembly with sedimentation pocket
AssigneePratt & Whitney Canada Corp.
InventorsJoanna Radon, Rose Beaulieu, Pierre Gauvin
Life of this patent
Estimating the term…
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.
Claims18
A filter assembly, comprising:
- 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 including first and second sections being transverse to one another, 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 downwardly from an intersection between the first and second sections, and in a direction having a component parallel to a direction of a gravity when the filter assembly is in use.
A filter assembly, comprising:
- 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;
- 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;
- and
- a bypass stemming from the inlet conduit, the bypass fluidly connecting the inlet to the outlet of the filter assembly while bypassing the internal volume, and a bypass valve fluidly connected to the bypass conduit and operable to selectively allow or prevent fluid communication through the bypass.
A method of removing particles from an oil flow, comprising:
- directing the oil flow towards a filter cartridge via an inlet conduit;
- flowing the oil flow past a pocket defined by the inlet conduit thereby allowing a portion of particles in the oil flow to sink by gravity in the sedimentation pocket, including flowing the flow in a first section of the inlet conduit and in a second section of the inlet conduit located downstream of the first section and being transverse to the first section, the sedimentation pocket located at an intersection between the first section and the second section;
- and
- flowing the oil flow through the filter cartridge.
Dependencies are inferred from the claim text.