# US 9,566,556 B2 · Adjustable venturi fluid mixing method

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 9,566,556 B2
- Document ID: US9566556B2
- Status: Granted
- Kind: B2
- Application number: 14/705,174
- Filed: 2015-05-06
- Published: 2015-08-27
- Granted: 2017-02-14
- Earliest claimed: 2013-11-27
- Assignees: Crossroads Machine, Inc.
- Applicants: Crossroads Machine, Inc.
- Inventors: Gary E Keffer
- Web page: https://patentgrep.com/patent/US9566556B2

## CPC

- B01F 25/312: with Venturi elements; Details thereof
- F02M 35/10262: {Flow guides, obstructions, deflectors or the like (for generating a charge motion in the cylinder F02B31/00; for re-atomising condensed fuel or homogenising fuel-air mixture F02M29/00)}
- F02M 35/10314: {Materials for intake systems (for sound damping F02M35/12; for air cleaners F02M35/02)}
- Y02T 10/12: Improving ICE efficiencies
- B01F: MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING (mixing paints B44D3/06)
- F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A method of mixing two fluids uses three open-ended tubular sections assembled to define a mixing valve. An axial relationship between two of the tubular sections is defined by the third tubular section. A first fluid is introduced into an annular channel defined by the tubular sections. A flow of a second fluid is introduced along a flow path through the tubular sections. The first fluid is drawn into the flow of the second fluid via holes linking the annular channel to the flow path.

## Claims

### Claim 1

A method of mixing two fluids, comprising the steps of:
providing an open-ended first tubular section having a sleeve defined therein wherein a flow path is defined through said sleeve and an annular channel open on one end thereof is defined between said sleeve and an inner surface of said first tubular section;
providing an open-ended second tubular section defining an annular region with a plurality of holes and a venturi region coupled to said annular region, said annular region circumscribing at least a portion of said sleeve of said first tubular section and sealed to said sleeve;
sealing an open-ended third tubular section to an outer surface of said first tubular section and to an outer surface of said second tubular section, wherein said annular channel is enclosed, wherein an axial relationship between said first tubular section and said second tubular section is defined by said third tubular section, and wherein at least a portion of said holes define a fluid path between said annular channel and said flow path;
introducing a first fluid into said annular channel; and
introducing a flow of a second fluid along said flow path, wherein said first fluid is drawn into said flow of said second fluid through said portion of said holes defining said fluid path.

### Claim 2 (depends on 1)

A method according to claim 1, wherein said first fluid in said annular channel is at about zero pressure.

### Claim 3 (depends on 1)

A method according to claim 1, further comprising the step of adjusting said axial relationship to adjust an amount of said first fluid being drawn into said flow of said second fluid.