Duckbill aerosol separator with always open refinement

Patent metadata

Field	Value
Publication number	US-11994049-B2
Application number	US-202318133399-A
Country	US
Kind code	B2
Filing date	Apr 11, 2023
Priority date	Mar 12, 2019
Publication date	May 28, 2024
Grant date	May 28, 2024

Abstract

An impactor separator comprises a housing having an inlet receiving a gas-liquid stream and an outlet expelling a gas stream. The impactor separator also includes an impaction surface positioned within the housing and configured to separate liquid particles from the gas-liquid stream and a nozzle assembly positioned within the housing. The nozzle assembly includes a nozzle assembly housing portion and a plurality of nozzles extending through the nozzle assembly housing portion. Each of the plurality of nozzles includes a nozzle inlet and a nozzle outlet. The gas-liquid stream enters into the nozzle assembly housing portion, flows into the plurality of nozzles through the nozzle inlet and exits the plurality of nozzles through the nozzle outlet. The plurality of nozzles accelerates the gas-liquid stream toward the impaction surface.

First claim

What is claimed is:

1. An impactor separator comprising:
a housing comprising an inlet receiving a gas-liquid stream and an outlet expelling a gas stream;
an impaction surface positioned within the housing and configured to separate liquid particles from the gas-liquid stream; and
a nozzle assembly positioned within the housing and comprising a nozzle assembly housing portion and a plurality of nozzles extending through the nozzle assembly housing portion, each of the plurality of nozzles having a nozzle inlet and a nozzle outlet, the plurality of nozzles comprising:
a duckbill valve having an always-open orifice, and
at least one additional valve disposed adjacent the duckbill valve;

wherein the gas-liquid stream enters into the nozzle assembly housing portion, flows into the plurality of nozzles through the nozzle inlets and exits the plurality of nozzles through the nozzle outlets, wherein the plurality of nozzles accelerates the gas-liquid stream toward the impaction surface.

2. The impactor separator of claim 1 , wherein the duckbill valve is formed integral with the nozzle assembly housing portion.

3. The impactor separator of claim 1 , wherein the at least one additional valve comprises at least one additional duckbill valve.

4. The impactor separator of claim 1 , wherein the duckbill valve is located substantially at the center of the nozzle assembly.

5. The impactor separator of claim 1 , wherein the always-open orifice is circular in shape.

6. The impactor separator of claim 1 , wherein the always-open orifice is oval in shape.

7. The impactor separator of claim 1 , wherein the at least one additional valve comprises at least one additional valve with an always-open orifice.

8. The impactor separator of claim 1 , wherein the nozzle outlet of the duckbill valve includes a first slot and a second slot, the first slot intersecting the second slot.

9. The impactor separator of claim 8 , wherein the nozzle outlet further comprises an aperture formed in the center of the nozzle outlet.

10. The impactor separator of claim 1 , wherein the at least one additional valve comprises a plurality of additional valves spaced around the duckbill valve.

11. An impactor separator formed as part of a valve cover, the impactor separator comprising:
a nozzle assembly positioned within the valve cover having a longitudinal axis, a bottom portion of the valve cover comprising an inlet receiving a gas-liquid stream, and comprising a plurality of nozzles having a nozzle inlet and a nozzle outlet, the plurality of nozzles comprising:
a duckbill valve having an always-open orifice, and
at least one additional valve disposed adjacent the duckbill valve; and

an impaction plate having an impaction surface structured to separate liquid particles from the gas-liquid stream;
wherein the gas-liquid stream enters into the valve cover, flows into the plurality of nozzles through the nozzle inlets and exits the plurality of nozzles through the nozzle outlets, the plurality of nozzles accelerating the gas-liquid stream toward the impaction surface.

12. The impactor separator of claim 11 , wherein the at least one additional valve comprises a plurality of additional valves.

13. The impactor separator of claim 1 , wherein the at least one additional valve comprises at least one additional duckbill valve.

14. The impactor separator of claim 11 , wherein the always-open orifice is circular in shape.

15. The impactor separator of claim 11 , wherein the at least one additional valve comprises at least one additional valve with an always-open orifice.

16. The impactor separator of claim 11 , wherein the nozzle outlet of the duckbill valve includes a first slot and a second slot, the first slot intersecting the second slot.

17. A nozzle assembly for use with an impactor separator comprising:
a nozzle assembly housing portion having a longitudinal axis; and
a plurality of nozzles extending through the nozzle assembly housing portion, each of the plurality of nozzles having a nozzle inlet and a nozzle outlet, the plurality of nozzles comprising:
a duckbill valve having an always-open orifice, and
at least one additional valve disposed adjacent the duckbill valve.

18. The nozzle assembly of claim 17 , wherein the always-open orifice is circular in shape.

19. The nozzle assembly of claim 17 , wherein the at least one additional valve comprises a plurality of additional valves.

20. The nozzle assembly of claim 17 , wherein the always-open orifice is diamond shaped.

Assignees

• Cummins Filtration Ip Inc

Inventors

• Herman Peter K
• Venkataraman Kaarthik
• Varghese Vincil A
• Karde Puja

Classifications

• F01N13/04 Primary

  having two or more silencers in parallel, e.g. having interconnections for multi-cylinder engines · CPC title

• B01D45/08 Primary

  by impingement against baffle separators · CPC title

• F01M2013/0433

  with a deflection device, e.g. screen · CPC title

• F01M2013/045

  using compression or decompression of the gas · CPC title

• F01M13/04 Primary

  having means for purifying air before leaving crankcase, e.g. removing oil · CPC title