Fuel injector cleaning system, fluid, and method

US10683799B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10683799-B2
Application numberUS-201815958118-A
CountryUS
Kind codeB2
Filing dateApr 20, 2018
Priority dateApr 27, 2017
Publication dateJun 16, 2020
Grant dateJun 16, 2020

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A fuel injector cleaning system includes an injector cleaning housing that defines a cavity structured to receive a fuel injector. A heater is operatively coupled to the housing. A three-way valve includes a first inlet fluidly coupled to a calibration fluid reservoir, and a second inlet fluidly coupled to a cleaning fluid reservoir. An intake line includes a first end fluidly coupled to an outlet of the valve, and a second end structured to be fluidly coupled to a fuel inlet of the fuel injector. A controller is operatively coupled to each of the heater and the valve. The controller is structured to actuate the valve so as to cause flow of a cleaning fluid to the fuel injector. The heater is operated so as to heat the cleaning fluid. The valve is actuated so as to cause flow of a calibration fluid to the fuel injector.

First claim

Opening claim text (preview).

What is claimed is: 1. A fuel injector cleaning fluid, comprising a mixture consisting of approximately 78 percent water, 20 percent ethanol, and 2 percent Sulfamic acid. 2. A fuel injector cleaning fluid, comprising a mixture consisting of water, ethanol, and sulfamic acid, with the mixture comprising water in a range of 78 percent to 82 percent by weight, ethanol in a range of 14 percent to 18 percent by weight, and sulfamic acid in a range of 1 percent to three percent by weight. 3. The fuel injector cleaning fluid of claim 2 , wherein the sulfamic acid is 2.05 percent by weight of the mixture. 4. The fuel injector cleaning fluid of claim 2 , wherein the water is 81.80 percent by weight of the mixture. 5. The fuel injector cleaning fluid of claim 2 , wherein the ethanol is 16.15 percent by weight of the mixture. 6. The fuel injector cleaning fluid of claim 2 , wherein the sulfamic acid is 2.05 percent by weight of the mixture, wherein the water is 81.80 percent by weight of the mixture, and wherein the ethanol is 16.15 percent by weight of the mixture.

Assignees

Inventors

Classifications

  • Acids · CPC title

  • Alcohols; Phenols · CPC title

  • F02B77/04Primary

    Cleaning of, preventing corrosion or erosion in, or preventing unwanted deposits in, combustion engines · CPC title

  • Acids · CPC title

  • Solvents · CPC title

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What does patent US10683799B2 cover?
A fuel injector cleaning system includes an injector cleaning housing that defines a cavity structured to receive a fuel injector. A heater is operatively coupled to the housing. A three-way valve includes a first inlet fluidly coupled to a calibration fluid reservoir, and a second inlet fluidly coupled to a cleaning fluid reservoir. An intake line includes a first end fluidly coupled to an out…
Who is the assignee on this patent?
Cummins Inc
What technology area does this patent fall under?
Primary CPC classification F02B77/04. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Jun 16 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).