Bypass valve with variable filter
AssigneeDeere & Company
InventorsYogesh Patil, Dattatray B. Pingle, Yogesh Bhoi
Life of this patent
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Abstract
One or more techniques and/or systems are disclosed for bypass flow filtering. A bypass valve filter includes at least one wall configured to engage a surface of a bypass valve and a filter surface having a plurality of openings between an inside of the at least one wall and an outside of the at least one wall. One or more openings of the plurality of openings have a first size and one or more other openings of the plurality of openings have a second size, wherein the first size is different than the second size to define different levels of filtering. The bypass valve further includes an open end configured to allow fluid flow therethrough and to the plurality of openings.
Claims17
A bypass valve filter comprising:
- at least one wall configured such that the at least one wall engages a surface of a bypass valve;
- a filter surface having a plurality of openings between an inside of the at least one wall and an outside of the at least one wall, wherein one or more openings of the plurality of openings have a first size, one or more other openings of the plurality of openings have a second size, and one or more of the openings of the plurality of openings have one or more additional sizes wherein the first size is different than the second size and the second size is different than the one or more additional sizes, the first size, the second size, and the one or more additional sizes defining different levels of filtering;
- and
- an open end configured such that the open end allows fluid flow therethrough and to the plurality of openings,
- wherein the plurality of openings are arranged in rows and increase in size along a length of the filter surface.
A filter element comprising:
- a plurality of walls defining a filter body having a longitudinal axis and a length defined along the longitudinal axis from a closed end to an open end, the plurality of walls having inner and outer surfaces, wherein the plurality of walls have at least three rows, each row having a plurality of openings, wherein the openings of the at least three rows consecutively increase from the closed end to the open end defining varying filter levels;
- and
- an open end configured such that the open end allows fluid flow therethrough and to the plurality of openings,
- wherein the filter element reciprocates within an outer housing in a direction along the longitudinal axis.
A method of filtering oil in a vehicle, the method comprising:
- configuring a variable filter a filter surface with a plurality of rows of openings having different sizes corresponding to different filter levels, the filter surface being outward facing and configured such that the filter surface exposes a varying number of the plurality of rows of openings to a bypass flow path based on a pressure applied on the variable filter;
- and
- positioning the variable filter within a bypass valve for filtering fluid in the vehicle.
Dependencies are inferred from the claim text.