Filter arrangement for liquids
AssigneeDana Corporation
InventorBrian Thomas Lee
Life of this patent
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Abstract
The dirt holding capacity of the filter is increased by providing one or more areas for the particles to settle and remain out of suspension on the filter so that the particles are not carried through a filter media disposed in the filter. The areas may be provided by recessed pockets, chambers or downwardly sloping floors which end in gutters. This arrangement is useful in transmissions and engine lubricating arrangements wherein oil is accumulated in and recirculates from an oil pan. With these arrangements, the filter is in the form of a panel having an opening therethrough, wherein the panel is disposed within an oil pan in spaced relation to the bottom of the oil pan.
Claims11
An arrangement for removing contaminants from a liquid which is collected and recirculated from a sump pan having a floor and an upwardly extending, side wall defining the depth of the pan, the arrangement comprising:
- a panel adapted to be mounted in the pan in spaced relation to the floor of the pan to define a liquid collection chamber between the panel and the floor, the panel having an opening therethrough;
- a filter media disposed in the opening for filtering liquid passing through the opening to the collection chamber, and
- a plurality of upwardly opening chambers in the panel, the chambers each having a bottom and walls with at least a vertical component adapted to resist liquid flow toward the opening, and the chambers defining a portion of the panel adapted to retain particulates which have settled out of the liquid so as to keep those particles from clogging the filter media thereby extending the useful life of the filter media.
Dependencies are inferred from the claim text.