Siloxane filtration system and method

Patent metadata

Field	Value
Publication number	US-2016258392-A1
Application number	US-201514640582-A
Country	US
Kind code	A1
Filing date	Mar 6, 2015
Priority date	Mar 6, 2015
Publication date	Sep 8, 2016
Grant date	—

Abstract

A particulate and siloxane filtration system may include a housing and a filter media assembly. The filter media assembly may be disposed within the housing and positioned to filter intake gases to an internal combustion engine. The filter media assembly may include a particulate media configured to remove particulates from the intake gases and a siloxane media configured to remove siloxanes from the intake gases.

First claim

What is claimed is:

1 . A particulate and siloxane filtration system comprising:
a housing; and a filter media assembly disposed within the housing, the filter media assembly positioned to filter intake gases to an internal combustion engine, the filter media assembly comprising:
a particulate media configured to remove particulates from the intake gases; and
a siloxane media configured to remove siloxanes from the intake gases.

2 . The particulate and siloxane filtration system of claim 1 , wherein the siloxane media is positioned in series with the particulate media relative to a flow of the intake gases, each of the particulate media and the siloxane media at least partially surround a common cavity and one of the particulate media and the siloxane media is nested within the other of the particulate media and the siloxane media.

3 . The particulate and siloxane filtration system of claim 2 , wherein the particulate media and the siloxane media each have a cylindrical shell shape, and the common cavity is cylindrical.

4 . The particulate and siloxane filtration system of claim 2 , wherein the filter media assembly is configured so as to be installable within, and removable from, the housing as a single piece.

5 . The particulate and siloxane filtration system of claim 2 , wherein an expected operational life of the particulate media is between 50% and 150% of an expected operational life of the siloxane media.

6 . The particulate and siloxane filtration system of claim 5 , further comprising a pressure sensor and a controller, wherein the pressure sensor is configured to provide a pressure signal indicative of a pressure of the intake gases, the controller is configured to receive the pressure signal, and the controller is configured to determine a remaining operational life of the filter media assembly based on the pressure signal.

7 . A method of filtering particulates and siloxanes from intake gases to an internal combustion engine of a work vehicle, comprising:
providing a particulate media positioned to remove particulates from the intake gases; providing a siloxane media positioned to remove siloxanes from the intake gases; and sending an indication of a remaining operational life of at least one of the particulate media and the siloxane media, the indication based on a pressure of the intake gases and a threshold pressure associated with the particulate media.

8 . The method of claim 7 , wherein the indication is of the remaining operational life of the siloxane media.

9 . The method of claim 7 , wherein the particulate media has an expected operational life between 50% and 150% of the expected operational life of the siloxane media.

10 . A work vehicle comprising:
ground-engaging tractive assemblies; an internal combustion engine configured to power the ground-engaging tractive assemblies so as to move the work vehicle; and a filtration system positioned to filter intake gases to the engine, the filtration system comprising:
a housing;
a particulate media disposed within the housing, the particulate media configured to remove particulates from the intake gases; and
a siloxane media disposed within the housing, the siloxane media configured to remove siloxanes from the intake gases.

11 . The work vehicle of claim 10 , further comprising an exhaust aftertreatment system positioned to treat exhaust from the engine.

12 . The work vehicle of claim 10 , wherein the siloxane media is positioned in series with the particulate media relative to the flow of the intake gases, the particulate media and the siloxane media each have a cylindrical shell shape, and one of the particulate media and the siloxane media is nested within the other of the particulate media and the siloxane media.

13 . The work vehicle of claim 12 , wherein the particulate media is positioned upstream of the siloxane media relative to the flow of the intake gases.

14 . The work vehicle of claim 13 , wherein the particulate media has an expected operational life between 50% and 150% of the expected operational life of the siloxane media.

15 . The work vehicle of claim 14 , wherein the expected operational life of the particulate media and the siloxane media is based on operation of the work vehicle in a landfill application.

16 . The work vehicle of claim 10 , wherein the siloxane media is positioned in series with the particulate media relative to the flow of the intake gases and the particulate media has an expected operational life between 50% and 150% of the expected operational life of the siloxane media.

17 . The work vehicle of claim 16 , further comprising a pressure sensor and a controller, wherein the pressure sensor is configured to provide a pressure signal indicative of a pressure of the intake gases, the controller is configured to receive the pressure signal, and the controller is configured to determine a remaining operational life of the siloxane media based on the pressure signal.

18 . The work vehicle of claim 16 , wherein the particulate media has an expected operational life between 75% and 125% of the expected operational life of the siloxane media.

19 . The work vehicle of claim 17 , wherein the particulate media and the siloxane media are included in a filter media assembly, and the filter media assembly is configured so as to be installable within, and removable from, the housing as a single piece.

20 . The work vehicle of claim 10 , wherein the siloxane media is positioned in series with the particulate media relative to the flow of the intake gases, the particulate media and the siloxane media are included in a filter media assembly, and the filter media assembly is configured so as to be installable within, and removable from, the housing as a single piece.

Assignees

• Deere & Co

Inventors

• Harris Thomas M
• Thomas Galen C
• Oftedal Teryl M

Classifications

• E02F9/0866

  Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment · CPC title

• B01D2257/55

  Compounds of silicon, phosphorus, germanium or arsenic · CPC title

• F02M35/0205

  Details, e.g. sensors or measuring devices · CPC title

• F02M35/0218 Primary

  acting by absorption or adsorption; trapping or removing vapours or liquids, e.g. originating from fuel · CPC title

• B01D53/04

  with stationary adsorbents {(B01D53/025 takes precedence)} · CPC title