Integrated module with stage one and stage two filters combined in single housing

Patent metadata

Field	Value
Publication number	US-2020246737-A1
Application number	US-201816758496-A
Country	US
Kind code	A1
Filing date	Oct 26, 2018
Priority date	Oct 27, 2017
Publication date	Aug 6, 2020
Grant date	—

Abstract

A filter assembly includes a filter housing having a longitudinal axis, the filter housing divided into a first filter chamber and a second filter chamber, a first element bottom endplate, a second element top endplate, an intermediate endplate positioned along the longitudinal axis between the second element top endplate and the first element bottom endplate, a first filter element housed within the first filter chamber and comprising first filter media positioned between the first element bottom endplate and the intermediate endplate, and a second filter element housed within the second filter chamber and comprising second filter media positioned between the second element top endplate and the intermediate endplate.

First claim

1 . A filter assembly comprising:
a filter housing having a longitudinal axis, the filter housing divided into a first filter chamber and a second filter chamber; a first element bottom endplate; a second element top endplate; an intermediate endplate positioned along the longitudinal axis between the second element top endplate and the first element bottom endplate; a first filter element housed within the first filter chamber and comprising a first filter media positioned between the first element bottom endplate and the intermediate endplate; and a second filter element housed within the second filter chamber and comprising a second filter media positioned between the second element top endplate and the intermediate endplate; wherein the first filter element and the second filter element are integrated into a single combined filter insert configured to be installed and used within the filter housing.

2 . (canceled)

3 . The filter assembly of claim 1 , wherein the intermediate endplate comprises a first element top endplate integrally formed with a second element bottom endplate;
wherein the first filter media is positioned between the first element top endplate and the first element bottom endplate; and wherein the second filter media is positioned between the second element top endplate and the second element bottom endplate.

4 . The filter assembly of claim 1 , further comprising a first inlet integrally formed with the filter housing, the first inlet providing fluid communication between an engine component positioned outside the filter housing with the first filter chamber.

5 . The filter assembly of claim 4 , further comprising a first outlet fluidly coupled with the first filter chamber and a second inlet fluidly coupled with the second filter chamber, the first outlet and the second inlet integrally formed with the filter housing.

6 . The filter assembly of claim 5 , further comprising a second outlet integrally formed with the filter housing, the second outlet configured to provide filtered fuel to a fuel delivery system of an engine.

7 . The filter assembly of claim 1 , further comprising a first inlet and a second outlet integrally formed with the filter housing, the first inlet fluidly coupled to the second outlet via the first filter element and the second filter element, where fluid flows into the first filter chamber from the first inlet, radially inward through the first filter element and the second filter element, and exits the filter housing through the second outlet.

8 . The filter assembly of claim 1 , further comprising a first inlet and a second outlet integrally formed with the filter housing, the first inlet fluidly coupled to the second outlet via the first filter element and the second filter element, where fluid flows radially outward through the first filter media and the second filter media.

9 . The filter assembly of claim 1 , further comprising a first inlet and a second outlet integrally formed with the filter housing, the first inlet fluidly coupled to the second outlet via the first filter element and the second filter element, where fluid flows axially through the first filter media and the second filter media.

10 . The filter assembly of claim 1 , wherein the intermediate endplate comprises a flange having a plurality of apertures fluidly coupling the first filter chamber and the second filter chamber.

11 . The filter assembly of claim 1 , wherein the first filter media comprises tetrahedral media and the second filter media comprises fluted media.

12 . The filter assembly of claim 1 , wherein the second filter media comprises tetrahedral media and the first filter media comprises fluted media.

13 . The filter assembly of claim 1 , wherein the first filter media and the second filter media comprise tetrahedral media.

14 . The filter assembly of claim 1 , wherein the first filter media and the second filter media comprise fluted media.

15 . The filter assembly of claim 1 , further comprising a manual priming pump configured to create a pressure difference between the first filter chamber and the second filter chamber, the manual priming pump positioned within the filter housing.

16 . The filter assembly of claim 1 , further comprising an electric priming pump configured to create a pressure difference between the first filter chamber and the second filter chamber, the electric priming pump positioned within the filter housing.

17 . The filter assembly of claim 1 , further comprising:
a first sealing member positioned on the first element bottom endplate, the first sealing member sealing the first element bottom endplate to an inner wall of the filter housing; a second sealing member positioned on the second element top endplate, the second sealing member sealing the second element top endplate to the inner wall of the filter housing; and a third sealing member positioned on the intermediate endplate, the third sealing member sealing the intermediate endplate to the inner wall of the filter housing; wherein the first filter chamber is formed between the first sealing member and the third sealing member; wherein the second filter chamber is formed between the second sealing member and the third sealing member.

18 . The filter assembly of claim 3 , further comprising:
a first sealing member positioned on the first element bottom endplate, the first sealing member sealing the first element bottom endplate to an inner wall of the filter housing; a second sealing member positioned on the first element top endplate, the first element top endplate integrated with the intermediate endplate, the second sealing member sealing the first element top endplate to the inner wall of the filter housing; a third sealing member positioned on the second element bottom endplate, the second element bottom endplate integrated with the intermediate endplate, the third sealing member sealing the second element bottom endplate to the inner wall of the filter housing; a fourth sealing member positioned on the second element top endplate, the fourth sealing member sealing the second element top endplate to the inner wall of the filter housing; and an intermediate chamber formed between the second sealing member and the third sealing member; wherein the first filter chamber is formed between the first sealing member and the second sealing member; wherein the second filter chamber is formed between the third sealing member and the fourth sealing member.

19 . The filter assembly of claim 1 , further comprising:
a first inlet fluidly coupled to the first filter chamber, the first inlet configured to supply a first fluid to the first filter chamber to be filtered by the first filter media; and a second inlet fluidly coupled to the second filter chamber, the second inlet configured to supply a second fluid to the second filter chamber to be filtered by the second filter media.

20 . The filter assembly of claim 19 , further comprising:
a first outlet fluidly coupled to the first filter chamber, the first fluid flows into the first filter chamber through the first inlet, radially inward through the first filter media, and exits the first filter chamber through the first outlet; and a second outlet fluidly coupled to the second filter chamber, the second fluid flows into the second filter chamber through the second inlet, radially inward through the second filter media, and exits the second filter chamber through the second outlet.

21 . The fil

Assignees

• Cummins Filtration Ip Inc

Inventors

• Sawant Anil I
• Burande Vijaykumar Mahadev
• Scheckel Benjamin L
• Verdegan Barry Mark
• Li Miao
• Bates Billy M
• Wieczorek Mark T

Classifications

• F02M37/48

  Filters structurally associated with fuel valves · CPC title

• F02M37/44

  Filters structurally associated with pumps · CPC title

• F02M37/34 Primary

  by the filter structure, e.g. honeycomb, mesh or fibrous · CPC title

• B01D36/003 Primary

  Filters in combination with devices for the removal of liquids (B01D35/185 takes precedence) · CPC title

• B01D29/58

  arranged concentrically or coaxially · CPC title