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US 2009/0211544 A1Published application
Crankcase ventilation system
AssigneeParker-Hannifin Corporation
InventorsRonald G. Frazier, JR., David Tice
Life of this patent
Estimating the term…
Abstract
An oil-collecting can (500) for a filter cartridge (300) comprises a plurality of capillary ribs (530) that are sized and shaped to contact filter media in the outlet chamber. The oil-collecting can (500) can be used in conjunction with a filter cartridge (300), which is installed in a filter assembly to encourage the downward flow of oil droplets. Such a filter assembly could be used, for example, in a crankcase ventilation system, to remove particulates and other contaminants from piston-bypass fumes.
Claims20
An oil-collecting can for a filter cartridge, comprising:
- a cylindrical side wall having an upper axial edge defining an open top, a lower axial edge, an interior surface and an exterior surface;
- a bottom wall having a radially-outer edge that transitions from the lower edge of the side wall, a radially-inner edge that defines an opening, an upper surface, and lower surface;
- a plurality of capillary ribs circumferentially arranged around the side wall, the ribs each having a ceiling transitioning into the upper axial edge of the cylindrical side wall, a floor transitioning into the lower axial edge of the cylindrical side wall, an interior surface projecting radially inward from the interior surface of the cylindrical side wall, and an exterior surface;
- a set of pedestals arranged on the upper surface of the bottom wall, each pedestal including a top platform and a skirt extending upward from the bottom wall and elevating the platform thereabove;
- and
- an outlet pipe having an upper axial edge transitioning from the radially-inner edge of the bottom wall, a lower axial edge defining an oil-outlet port, an interior surface and exterior surface.
3 more elements
Dependencies are inferred from the claim text.