Engine mixing structures

Patent metadata

Field	Value
Publication number	US-2023015517-A1
Application number	US-202217952494-A
Country	US
Kind code	A1
Filing date	Sep 26, 2022
Priority date	Jan 12, 2018
Publication date	Jan 19, 2023
Grant date	—

Abstract

A mixing structure can include a body having first conduits, mixture conduits, and second conduits extending through the body to the internal volume. The first conduits may be closer to a first side of the body than the mixture conduits and the second conduits. The second conduits may closer to another side of the body than the first conduits and the mixture conduits. The internal volume may receive liquid streams from an injector. The first conduits and the second conduits may receive gas streams from outside the body. The body may thermally modify the gas streams and entrain the gas streams into the liquid streams in the internal volume. The mixture conduits may be positioned to direct the gas streams entrained into the liquid streams out of the body in directions directed toward the second side of the body and away from the first side of the body.

First claim

What is claimed is:

1 . A mixing structure, comprising:
a body extending from a first side to a second side along an axis with an internal volume disposed between the first side and the second side, the first side and the second side positioned to face in different directions, the body including first conduits, mixture conduits, and second conduits extending through the body to the internal volume, the first conduits disposed closer to the first side of the body than the mixture conduits and the second conduits, the second conduits disposed closer to the second side of the body than the first conduits and the mixture conduits, the internal volume of the body positioned to receive liquid streams from an injector, the first conduits and the second conduits configured to receive gas streams from outside the body, the body configured to thermally modify the gas streams and entrain the gas streams into the liquid streams in the internal volume, the mixture conduits positioned to direct the gas streams entrained into the liquid streams out of the body in directions directed toward the second side of the body and away from the first side of the body.

2 . The mixture structure of claim 1 , wherein the body is sized to be positioned between a fuel injector and a piston head of an engine cylinder with the first side of the body facing the fuel injector and the second side of the body facing the piston head.

3 . The mixture structure of claim 2 , wherein the first conduits and the second conduits in the body are positioned to receive air as the gas streams, the internal volume of the body is positioned to receive fuel from the fuel injector as the liquid streams, and the mixture conduits are positioned to direct the air entrained into the fuel out of the body in the directions directed toward the engine cylinder.

4 . The mixture structure of claim 2 , wherein the body is configured to remain stationary relative to the fuel injector and the piston head during operation of the fuel injector and during operation of the engine cylinder.

5 . The mixture structure of claim 1 , wherein the first conduits, the second conduits, or both the first conduits and the second conduits have triangular shapes.

6 . The mixture structure of claim 1 , wherein the first conduits and the mixture conduits alternate with each other along an outer surface of the body.

7 . The mixture structure of claim 1 , wherein the second conduits and the mixture conduits alternate with each other along an outer surface of the body.

8 . The mixture structure of claim 1 , wherein the first side and the second side of the body face in opposite directions.

9 . The mixture structure of claim 1 , wherein the body is open on the first side such that the internal volume is positioned to receive one or more of the liquid streams, one or more of the gas streams, or the one or more of the liquid streams and the one or more of the gas streams through the first side.

10 . The mixture structure of claim 1 , wherein the body is open on the second side such that the internal volume is positioned to receive one or more of the gas streams through the first side.

11 . A mixing structure, comprising:
a body extending from a first side to a second side along an axis with an internal volume disposed between the first side and the second side, the first side and the second side positioned to face in different directions, the first side including an opening to the internal volume, the body including first conduits, mixture conduits, and second conduits extending through the body to the internal volume, the upper conduits disposed closer to the first side of the body than the mixture conduits and the second conduits, the second conduits disposed closer to the second side of the body than the first conduits and the mixture conduits, the internal volume of the body positioned to receive liquid streams from an injector through the opening in the first side of the body, the first conduits and the second conduits configured to receive gas streams from outside the body, the body configured to cool the gas streams and entrain the gas streams into the liquid streams in the internal volume, the mixture conduits positioned to direct the gas streams entrained into the liquid streams out of the body in directions directed toward the second side of the body and away from the first side of the body.

12 . The mixture structure of claim 11 , wherein the body is sized to be positioned between a fuel injector and a piston head of an engine cylinder with the first side of the body facing the fuel injector and the second side of the body facing the piston head, the first conduits and the second conduits in the body positioned to receive air as the gas streams, the internal volume of the body is positioned to receive fuel from the fuel injector as the liquid streams, and the mixture conduits are positioned to direct the air entrained into the fuel out of the body in the directions directed toward the engine cylinder.

13 . The mixture structure of claim 12 , wherein the body is configured to remain stationary relative to the fuel injector and the piston head during operation of the fuel injector and during operation of the engine cylinder.

14 . The mixture structure of claim 11 , wherein the first conduits and the mixture conduits alternate with each other along an outer surface of the body.

15 . The mixture structure of claim 11 , wherein the second conduits and the mixture conduits alternate with each other along an outer surface of the body.

16 . The mixture structure of claim 11 , wherein the first side and the second side of the body face in opposite directions.

17 . The mixture structure of claim 11 , wherein the body is open on the second side such that the internal volume is positioned to receive one or more of the gas streams through the first side.

18 . A mixing structure, comprising:
a body extending from a first side to a second side along an axis with an internal volume disposed between the first side and the second side, the first side and the second side positioned to face in opposite directions, the body including first conduits, mixture conduits, and second conduits extending through the body to the internal volume, the upper conduits disposed closer to the first side of the body than the mixture conduits and the second conduits, the second conduits disposed closer to the second side of the body than the first conduits and the mixture conduits, the internal volume of the body positioned to receive liquid streams from an injector, the first conduits and the second conduits configured to receive gas streams from outside the body, the body configured to cool the gas streams and entrain the gas streams into the liquid streams in the internal volume, the mixture conduits positioned to direct the gas streams entrained into the liquid streams out of the body in directions directed toward the second side of the body and away from the first side of the body.

19 . The mixture structure of claim 18 , wherein the body is sized to be positioned between a fuel injector and a piston head of an engine cylinder with the first side of the body facing the fuel injector and the second side of the body facing the piston head.

20 . The mixture structure of claim 19 , wherein the first conduits and the second conduits in the body are positioned to receive air as the gas streams, the internal volume of the body is positioned to receive fuel from the fuel injector as the liquid streams, a

Assignees

• Transp Ip Holdings Llc

Inventors

• Gubba Sreenivasa Rao
• Tamma Bhaskar
• Salazar Victor Manuel
• Klingbeil Adam Edgar
• Lavertu Thomas Michael
• Primus Roy James
• Dowell John
• Bailey Kevin
• Mcelhaney Kevin

Classifications

• F02M61/1833

  Discharge orifices having changing cross sections, e.g. being divergent · CPC title

• F02B2275/14

  Direct injection into combustion chamber · CPC title

• F02B3/06

  with compression ignition (compression ignition engines using air or gas for blowing fuel into compressed air in cylinder F02B13/02) · CPC title

• F02M61/1813 Primary

  Discharge orifices having different orientations with respect to valve member direction of movement, e.g. orientations being such that fuel jets emerging from discharge orifices collide with each other · CPC title

• F02M69/08

  characterised by the fuel being carried by compressed air into main stream of combustion-air · CPC title