Coaxial full-flow and bypass oil filter apparatus and method
A fluid filter includes a first filter, a second filter coaxial with the first filter, an inlet adjacent the first and second filters, a first outlet adjacent the inlet, and a second outlet at a distal end from the inlet and the first outlet. Further, the first and second filters may be housed in a unitary canister or a canister that has a canister body coupled to a removable canister cap. A method of filtering fluid includes providing a cylindrical housing, inserting a first tubular filter into the housing, inserting a second tubular filter into the housing, coaxial with the first tubular filter, providing an inlet on the housing, and providing a first outlet and a second outlet on the housing wherein the second outlet is at a distal end from the first outlet.
1 . A fluid filter comprising:
a first filter;
a second filter;
a housing surrounding the first and second filters, having a first end and a second end;
an inlet disposed on the first end;
a first outlet; and
a second outlet disposed on the second end.
2 . The fluid filter of claim 1 , wherein the first filter comprises coarse filter media and the second filter comprises fine filter media.
3 . The fluid filter of claim 1 , wherein the first outlet is a coarse flow outlet and the second outlet is a fine flow outlet.
4 . The fluid filter of claim 1 , wherein the inlet comprises a plurality of apertures.
5 . (canceled)
6 . (canceled)
7 . The fluid filter of claim 1 , wherein the first filter and the second filter are coaxial.
8 . The fluid filter of claim 1 , wherein the first filter is spaced radially apart from the second filter.
9 . The fluid filter of claim 1 , wherein the first end of the housing is configured to mount to an engine, a transmission or a machinery.
10 . The fluid filter of claim 1 , wherein the second end of the housing is configured to couple to a return line, an outlet, a pipe or a hose.
11 . The fluid filter of claim 1 , wherein the first filter and second filter are tubular in shape and wherein the first filter has a diameter larger than the second filter.
12 . The fluid filter of claim 1 , wherein the first filter comprises a metal mesh screen and the second filter comprises a fibrous media.
13 . The fluid filter of claim 1 , wherein the first filter comprises a pleated media, a wire screen or a mesh.
14 . The fluid filter of claim 13 , wherein the second filter comprises wound cotton.
15 . The fluid filter of claim 1 , wherein the second filter comprises fibrous media.
16 . The fluid filter of claim 15 , wherein the second filter comprises wound cotton.
17 . The fluid filter of claim 1 , wherein the fluid filter is a transmission fluid filter.
18 . The fluid filter of claim 1 , wherein the fluid filter is an engine fluid filter.
19 . The fluid filter of claim 1 , wherein the fluid filter is a machinery fluid filter.
20 . A fluid filter comprising:
a first filter;
a second filter;
a housing surrounding the first and second filters, having a first end and a second end;
an inlet;
a first outlet disposed on the first end; and
a second outlet disposed on the second end.
21 . The fluid filter of claim 20 , wherein the first filter comprises coarse filter media and the second filter comprises fine filter media.
22 . The fluid filter of claim 20 , wherein the first outlet is a coarse flow outlet and the second outlet is a fine flow outlet.
23 . The fluid filter of claim 20 , wherein the inlet comprises a plurality of apertures.
24 . (canceled)
25 . (canceled)
26 . The fluid filter of claim 20 , wherein the first filter and the second filter are coaxial.
27 . The fluid filter of claim 20 , wherein the first filter is spaced radially apart from the second filter.
28 . The fluid filter of claim 20 , wherein the first end is configured to mount to an engine and the second end is configured to couple to a return line or a hose.
29 . The fluid filter of claim 20 , wherein the fluid filter is a transmission fluid filter.
30 . The fluid filter of claim 20 , wherein the fluid filter is an engine fluid filter.
31 . The fluid filter of claim 20 , wherein the fluid filter is a hydraulic fluid filter.
32 - 40 . (canceled)
41 . A fluid filter comprising:
a first filter;
a second filter coaxial with the first filter;
an inlet coaxial with the first and second filters;
a first outlet, coaxial with the first and second filters; and
a second outlet coaxial with the first and second filters.
42 . (canceled)
43 . (canceled)
44 . The fluid filter of claim 41 , wherein the first filter is spaced radially apart from the second filter.
45 . The fluid filter of claim 41 , wherein the fluid filter is a transmission fluid filter.
46 . The fluid filter of claim 41 , wherein the fluid filter is an engine fluid filter.
47 . The fluid filter of claim 41 , wherein the fluid filter is a hydraulic fluid filter.
48 . A fluid filter comprising:
a first filter;
a second filter;
a housing surrounding the first and second filters;
an inlet disposed on the first end;
a first outlet disposed on the first end; and
a second outlet disposed on a distal end from the inlet.
49 - 52 . (canceled)
53 . The fluid filter of claim 48 , wherein the first filter is spaced radially apart from the second filter.
54 . The fluid filter of claim 48 , wherein the fluid filter is a transmission fluid filter.
55 . The fluid filter of claim 48 , wherein the fluid filter is an engine fluid filter.
56 . The fluid filter of claim 48 , wherein the fluid filter is a hydraulic fluid filter.
57 . A method of filtering fluid comprising:
providing a cylindrical housing;
inserting a first tubular filter into the housing;
inserting a second tubular filter into the housing, coaxial with the first tubular filter;
providing an inlet on the housing; and
providing a first outlet and a second outlet on the housing wherein the second outlet is at a distal end from the first outlet.
58 . The method of filtering fluid of claim 57 , further comprising the step of directing fluid into the housing through the inlet.
59 . The method of filtering fluid of claim 58 , further comprising the step of filtering fluid through a first filter and directing fluid out of the housing through the first outlet.
60 . The method of filtering fluid of claim 59 , further comprising the step of directing a portion of fluid through the second filter and directing the portion of fluid out of the housing through the second outlet.
61 . A fluid filter system comprising:
means for primary filtration of a fluid resulting in a primary fluid;
means for secondary filtration of the fluid resulting in a secondary fluid;
means for delivering the primary fluid to a sump; and
means for separately delivering the secondary fluid to the sump, wherein the means for primary filtration and the means for secondary filtration are coaxial.
62 . The fluid filtering system of claim 61 , wherein the means for delivering the primary fluid is at a distal location from the means for delivering the secondary fluid.
63 . The fluid filtering system of claim 61 , wherein the means for delivering the primary fluid couples to an engine and the means for delivering the secondary fluid couples to a return line or a hose.