Device and method for integrated annular low pressure gaseous fuel introduction

Patent metadata

Field	Value
Publication number	US-10364774-B2
Application number	US-201615566898-A
Country	US
Kind code	B2
Filing date	Apr 14, 2016
Priority date	Apr 17, 2015
Publication date	Jul 30, 2019
Grant date	Jul 30, 2019

Abstract

A gaseous fuel introducer comprising a first mounting surface shaped and located to couple to a first wall of a charger; a first input, the first input being an air input; a second input, the second input being a gaseous fuel input; and a charge output. The charge output supplies a fuel-containing charge to an input of the charger. The introducer has a first mounting position that defines a first orientation of the second input relative to the charger. The introducer also has a second mounting position that defines a second orientation of the second input relative to the charger that is different than the first orientation.

First claim

What is claimed is:

1. A gaseous fuel introducer for an internal combustion engine comprising: a first mounting surface shaped and located to couple to a first wall of a charger; a first input, the first input being an air input; a second input, the second input being a gaseous fuel input; and a charge output, the charge output supplying a fuel-containing charge to an input of the charger; the introducer having a first mounting position that defines a first orientation of the second input relative to the charger, the introducer having a second mounting position that defines a second orientation of the second input relative to the charger that is different than the first orientation, wherein the second input is in communication with a fuel flow path at least partially defined within a housing of the gaseous fuel introducer, and the fuel flow path interfaces with the first input via an annular gap that encircles the first input, the annular gap being defined by a space between a second wall extending from the housing and an outer surface of the first input.

2. The gaseous fuel introducer of claim 1 , wherein the first mounting surface is an infinitely adjustable mounting surface that permits infinite orientations of the second input relative to the charger.

3. The gaseous fuel introducer of claim 1 , further comprising a fixer, wherein the gaseous fuel introducer is rotatable relative to the charger to permit the multiple orientations of the second input and the fixer selectively fixes the relative position of the gaseous fuel introducer and the charger.

4. The gaseous fuel introducer of claim 1 , wherein the first wall of the charger is part of a charger insert.

5. The gaseous fuel introducer of claim 1 , wherein the fuel flow path encircles the first input.

6. The gaseous fuel introducer of claim 1 , wherein the fuel flow path provides for annular introduction of fuel into gaseous charge received from the first input.

7. The gaseous fuel introducer of claim 1 , wherein the fuel flow path includes a first chamber containing a chamber output that directs the gaseous fuel into contact with gas from a first gaseous input.

8. The gaseous fuel introducer of claim 7 , wherein an input of the first chamber defines a first flow area and the chamber output defines a second flow area that is greater than the first flow area.

9. A device for an internal combustion engine comprising; a gaseous fuel introducer having a first input being an air input, and a fuel flow path including a fuel input; and a charger cooperating with the gaseous fuel introducer to define the fuel flow path within the gaseous fuel introducer, wherein the fuel flow path at least partially defined within a housing of the gaseous fuel introducer interfaces with the first input via an annular gap that encircles the first input, the annular gap being defined by a space between a wall extending from the housing and an outer surface of the first input.

10. The device of claim 9 , wherein the fuel flow path includes a fuel output where fuel exits the fuel flow path and mixes with air, the charger cooperating with the gaseous fuel introducer to define the fuel output.

11. The device of claim 9 , wherein the charger further includes a charge intake bell having a bell wall, the bell wall forming a wall of the fuel flow path.

12. The device of claim 11 , wherein the intake bell is removable from the charger.

13. The device of claim 9 , wherein the gaseous fuel introducer is rotatable relative to the charger, and rotation of the gaseous fuel introducer changes the position of the fuel input relative to the charger.

14. The device of claim 9 , wherein the position of the fuel input of the gaseous fuel introducer is infinitely adjustable relative to the charger.

15. A gaseous fuel introducer for an internal combustion engine comprising: a housing defining a fuel flow path from a fuel input to a fuel outlet, the housing having a mount that couples the housing to a charger such that the charger provides at least one wall that contributes to defining the fuel flow path, wherein the fuel flow path interfaces with an air input associated with the gaseous fuel introducer via an annular slot that encircles the air input, the annular slot being defined by a space between a wall extending from the housing and an outer surface of the air input.

16. The gaseous fuel introducer of claim 15 , wherein the fuel outlet is shaped as a ring.

17. The gaseous fuel introducer of claim 15 , wherein the fuel outlet is defined between the housing and the at least one wall of the charger.

18. The gaseous fuel introducer of claim 17 , wherein the at least one wall of the charger is an air intake bell wall.

19. The gaseous fuel introducer of claim 15 , wherein the housing provides a coupler element that provides for the housing to couple to the charger, the coupler element providing for mounting of the housing to provide for an infinitely adjustable location of the fuel input while maintaining a constant fuel outlet.

Assignees

• Cummins Inc

Inventors

• Dodman Benjamin
• Anderson Alan C
• Sease Matthew Keith
• Stablein Mark T

Classifications

• F05D2220/40

  in turbochargers · CPC title

• F04D29/705

  Adding liquids · CPC title

• F04D29/4213

  suction ports · CPC title

• F04D29/40

  Casings; Connections of working fluid {(bleed or by-pass valves F04D15/0011, F04D27/0215)} · CPC title

• F04D27/02

  Surge control {(surge detection F04D27/001)} · CPC title