Combustion air filtration apparatus

Patent metadata

Field	Value
Publication number	US-11339750-B2
Application number	US-202016861260-A
Country	US
Kind code	B2
Filing date	Apr 29, 2020
Priority date	Apr 29, 2020
Publication date	May 24, 2022
Grant date	May 24, 2022

Abstract

A combustion air filtration apparatus for filtering combustion air for an engine is disclosed. The combustion air filtration apparatus comprises a combustion air source and a filter system fluidly coupled to the combustion air source and to the engine to receive combustion air from the combustion air source and to supply filtered combustion air for the engine. The filter system comprises a first combustion air filter, a second combustion air filter flow-parallel to the first combustion air filter, and a flow control system fluidly coupled to the first combustion air filter and the second combustion air filter to direct flow of combustion air selectively between the first combustion air filter and the second combustion air filter.

First claim

What is claimed is:

1. A combustion air filtration apparatus for filtering combustion air for an engine, the combustion air filtration apparatus comprising:
a combustion air source,
a filter system fluidly coupled to the combustion air source and to the engine to receive combustion air from the combustion air source and to supply filtered combustion air for the engine, the filter system comprising a first combustion air filter, a second combustion air filter flow-parallel to the first combustion air filter, and a flow control system fluidly coupled to the first combustion air filter and the second combustion air filter to direct flow of combustion air selectively between the first combustion air filter and the second combustion air filter, and
a filter cleaning system fluidly coupled to the filter system to clean the first combustion air filter and the second combustion air filter selectively,
wherein the filter cleaning system comprises a compressed air source and a second flow control system positioned fluidly between the compressed air source and the first and second combustion air filters to direct flow of compressed air supplied by the compressed air source selectively between the first combustion air filter and the second combustion air filter, the second flow control system comprises a first compressed air valve fluidly coupled to the first combustion air filter and a second compressed air valve flow-parallel to the first compressed air valve and fluidly coupled to the second combustion air filter, the flow control system comprises a first combustion air valve fluidly coupled to the first combustion air filter and a second combustion air valve fluidly coupled to the second combustion air filter, each of the first combustion air filter and the second combustion air filter comprises a first side and a second side opposite to the first side, the first combustion air valve is fluidly coupled to the first side of the first combustion air filter, the first compressed air valve is fluidly coupled to the second side of the first combustion air filter, the second combustion air valve is fluidly coupled to the first side of the second combustion air filter, and the second compressed air valve is fluidly coupled to the second side of the second combustion air valve, such that, with respect to each of the first combustion air filter and the second combustion air filter, combustion air flows from the first side to the second side and compressed air flows from the second side to the first side.

2. The combustion air filtration apparatus of claim 1 , wherein the second combustion air valve flow-parallel to the first combustion air valve.

3. The combustion air filtration apparatus of claim 2 , wherein the filter system comprises a first branch and a second branch flow-parallel to the first branch, the first branch comprises the first combustion air filter and the first combustion air valve, and the second branch comprises the second combustion air filter and the second combustion air valve.

4. The combustion air filtration apparatus of claim 2 , comprising an actuation system operatively coupled to the first combustion air valve and the second combustion air valve to move the first combustion air valve between opened and closed positions and the second combustion air valve between opened and closed positions in a manner opposite to the first combustion air valve.

5. The combustion air filtration apparatus of claim 1 , comprising an actuation system operatively coupled to the first and second combustion air valves and the first and second compressed air valves to move the first combustion air valve and the second compressed air valve between opened and closed positions together and the second combustion air valve and the first compressed air valve between opened and closed positions together in a manner opposite to the first combustion air valve and the second compressed air valve.

6. The combustion air filtration apparatus of claim 1 , comprising an actuation system operatively coupled to the first compressed air valve and the second compressed air valve to move the first compressed air valve between opened and closed positions and the second compressed air valve between opened and closed positions in a manner opposite to the first compressed air valve.

7. The combustion air filtration apparatus of claim 1 , wherein the filter cleaning system comprises a fan fluidly coupled to the first side of the first combustion air filter and the first side of the second combustion air filter to remove debris released from the first and second combustion air filters due to application of compressed air by the filter cleaning system.

8. The combustion air filtration apparatus of claim 1 , wherein the filter system comprises a first branch and a second branch flow-parallel to the first branch of the filter system, the first branch of the filter system comprises the first combustion air filter and the first combustion air valve, the second branch of the filter system comprises the second combustion air filter and the second combustion air valve, the filter cleaning system comprises a first branch and a second branch flow-parallel to the first branch of the filter cleaning system, the first branch of the filter cleaning system comprises the first compressed air valve, and the second branch of the filter cleaning system comprises the second compressed air valve.

9. The combustion air filtration apparatus of claim 1 , wherein the filter cleaning system comprises a first branch and a second branch flow-parallel to the first branch, the first branch comprises the first compressed air valve, and the second branch comprises the second compressed air valve.

10. The combustion air filtration apparatus of claim 1 , wherein the compressed air source comprises an air inlet fluidly coupled to a point downstream of the first combustion air filter and the second combustion air filter.

11. The combustion air filtration apparatus of claim 1 , wherein the filter cleaning system comprises a fan fluidly coupled to the first combustion air filter and the second combustion air filter to remove debris released from the first and second combustion air filters due to application of compressed air by the filter cleaning system.

12. The combustion air filtration apparatus of claim 1 , comprising a control system, wherein the flow control system is under the control of the control system.

13. The combustion air filtration apparatus of claim 12 , wherein the flow control system comprises a first combustion air valve fluidly coupled to the first combustion air filter and a second combustion air valve flow-parallel to the first combustion air valve and fluidly coupled to the second combustion air filter, and the first combustion air valve and the second combustion air valve are under the control of the control system.

14. The combustion air filtration apparatus of claim 12 , wherein the filter cleaning system is under the control of the control system.

15. The combustion air filtration apparatus of claim 14 , wherein the first compressed air valve and the second compressed air valve are under the control of the control system.

Assignees

• Deere & Co

Inventors

• Sheidler Alan D
• Conner Cory
• Knapp Gary H

Classifications

• F02M35/04

  specially arranged with respect to engine {, to intake system or specially adapted to vehicle}; Mounting thereon {; Combinations with other devices (combined with silencers F02M35/14)} · CPC title

• B01D2279/50

  for air conditioning · CPC title

• F02M35/164

  Heavy duty vehicles, e.g. trucks, trains, agricultural or construction machines · CPC title

• B01D46/10

  Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces · CPC title

• F02M35/086

  Dust removal by flushing, blasting, pulsating or aspirating flow, washing or the like; Mechanical dust removal, e.g. by using scrapers · CPC title