Oil filter with two filtrate outlets and vehicle lubrication circuit

Patent metadata

Field	Value
Publication number	US-12564801-B2
Application number	US-202118550597-A
Country	US
Kind code	B2
Filing date	Mar 18, 2021
Priority date	Mar 18, 2021
Publication date	Mar 3, 2026
Grant date	Mar 3, 2026

Abstract

An oil filter for vehicle lubrication system includes a housing forming a cavity, a filter medium mounted in the housing cavity, an inlet port located upstream of the filter medium in the direction of oil flow, a first outlet port located downstream of the filter medium. The oil filter includes a second outlet port located downstream of the filter medium.

First claim

The invention claimed is:

1 . An oil filter for a vehicle lubrication system comprising:
a housing having at least one side wall extending between a base and a top wall defining a cavity; a first conduit axially extending through the cavity defining a first outlet port at an end thereof, a first portion of the first conduit adjacent to the first outlet port defining a perforated zone; a second conduit laterally extending through the cavity, and being orthogonally connected with the first conduit within the cavity at an end of the second conduit, such that an interior volume of the first conduit is in fluid communication with an interior volume of the second conduit, the opposing end of the second conduit extending through the at least one side wall and defining a second outlet port; a filter media surrounds the perforated zone; and an inlet for introducing oil to be filtered upstream of the filter media;
wherein, oil to be filtered enters the housing through the inlet, flows through the filter media, through the perforated zone, and filtered oil flows out of the housing through the first outlet port and the second outlet port.

2 . The oil filter according to claim 1 , wherein the housing is cylindrical.

3 . The oil filter according to claim 2 , wherein the axis of the first outlet port is coincident with the axis of the cylindrical housing.

4 . The oil filter according to claim 1 , wherein the opposing end of the first conduit is open, to facilitate drainage.

5 . The oil filter according to claim 4 , further comprising:
a plug sized to sealingly close the open, opposing end of the first conduit.

6 . The oil filter according to claim 5 , wherein the plug includes a seal to prevent oil leakage.

7 . The oil filter according to claim 1 , wherein a side wall of the first conduit includes an aperture that places the interior volume of the first conduit in fluid communication with the interior volume of the second conduit.

8 . A lubrication circuit of a motor vehicle comprising:
an oil filter for a vehicle lubrication system including:
a housing having at least one side wall extending between a base and a top wall defining a cavity;
a first conduit axially extending through the cavity defining a first outlet port at an end thereof, a first portion of the first conduit adjacent to the first outlet port defining a perforated zone;
a second conduit laterally extending through the cavity, and being orthogonally connected with the first conduit within the cavity at an end of the second conduit, such that an interior volume of the first conduit is in fluid communication with an interior volume of the second conduit, the opposing end of the second conduit extending through the at least one side wall and defining a second outlet port;
a filter media surrounding the perforated zone; and
an inlet for introducing oil to be filtered upstream of the filter media;
wherein, oil to be filtered enters the housing through the inlet, flows through the filter media, through the perforated zone, and filtered oil flows out of the housing through the first outlet port and the second outlet port;

a pump; a heat exchanger for cooling the oil of the lubrication circuit; and a by-pass circuit permitting bypass of the heat exchanger.

9 . The lubrication circuit according to claim 8 , wherein the second outlet port is fluidically connected to an inlet of the pump, and the first outlet port is fluidically connected to an inlet of the heat exchanger.

10 . The lubrication circuit according to claim 8 further comprising:
a 3-way valve including:
a first inlet of the 3-way valve that is fluidically connected the second outlet port of the oil filter;
a second inlet of the 3-way valve that is fluidically connected to an outlet of the heat exchanger; and
an outlet of the 3-way valve that is fluidically connected to an inlet of the pump.

Assignees

• Volvo Truck Corp

Inventors

• Boutin Baptiste
• Granottier Nicolas

Classifications

• B01D2201/165

  Multi-way valves · CPC title

• B01D29/92

  for discharging filtrate · CPC title

• B01D2201/46

  Several filtrate discharge conduits each connected to one filter element or group of filter elements · CPC title

• B01D2201/291

  End caps · CPC title

• B01D29/15 Primary

  arranged for inward flow filtration · CPC title