IP Library › Patent Application 13044298
Patent Application
App. No. 13/044,298

RAIL CONNECTION RESTORATION AND METHOD FOR CLEANING FUEL INJECTOR WITHOUT DISASSEMBLY

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Patent No.
US None
App. No.
13/044,298
Abstract

A method for restoring a rail connection interface of a fuel injector and/or a method for cleaning the fuel injector. The method comprises inspecting a rail connection interface of the fuel injector, and restoring the rail connection interface. The method may further comprise connecting a flush line to at least one of a nozzle or a fuel inlet hole of a cone nut of the fuel injector, pressurizing a cleaning solution, and supplying the pressurized cleaning solution to the flush line.

Claims (51)

1 . A method for restoring a rail connection interface of a fuel injector and cleaning the fuel injector, the method comprising:

inspecting a rail connection interface of the fuel injector;

restoring the rail connection interface;

connecting a flush line to at least one of a nozzle or a fuel inlet hole of a cone nut of the fuel injector;

pressurizing a cleaning solution; and

supplying the pressurized cleaning solution to the flush line.

2 . The method according to claim 1 , further comprising:

vibrating the pressurized cleaning solution.

3 . The method according to claim 1 , wherein the cleaning solution comprises:

a chemical agent; or

a biological agent.

4 . The method according to claim 1 , wherein the restoring the rail connection interface comprises:

machining the rail connection interface; and

installing an insert in the machined connection interface.

5 . The method according to claim 1 , wherein the restoring the rail connection interface comprises:

preparing the rail connection interface; and

depositing a material on the prepared rail connection interface.

6 . The method according to claim 5 , wherein the preparing the rail connection interface comprises:

cleaning the rail connection interface.

7 . The method according to claim 5 , wherein the preparing the rail connection interface comprises:

depositing a bonding substrate to the rail connection interface.

8 . The method according to claim 1 , wherein the supplying the pressurized cleaning solution to the flush line comprises:

introducing the pressurized cleaning solution into the nozzle of the fuel injector.

9 . The method according to claim 1 , wherein the supplying the pressurized cleaning solution to the flush line comprises:

introducing the pressurized cleaning solution into the fuel inlet hole of the cone nut of the fuel injector.

10 . A method for cleaning a fuel injector, the method comprising:

connecting a flush line to at least one of a nozzle or a fuel inlet hole of a cone nut of the fuel injector;

pressurizing a cleaning solution; and

supplying the pressurized cleaning solution to the flush line.

11 . The method according to claim 10 , further comprising:

vibrating the pressurized cleaning solution.

12 . The method according to claim 10 , wherein the cleaning solution comprises:

a chemical agent; or

a biological agent.

13 . The method according to claim 10 , wherein the supplying the pressurized cleaning solution to the flush line comprises:

introducing the pressurized cleaning solution into the nozzle of the fuel injector.

14 . The method according to claim 10 , wherein the supplying the pressurized cleaning solution to the flush line comprises:

introducing the pressurized cleaning solution into the fuel inlet hole of the cone nut of the fuel injector.

15 . A method for restoring a rail connection interface of a fuel injector, the method comprising:

inspecting a rail connection interface of the fuel injector; and

restoring the rail connection interface.

16 . The method according to claim 15 , wherein the restoring the rail connection interface comprises:

machining the rail connection interface; and

installing an insert in the machined connection interface.

17 . The method according to claim 15 , wherein the restoring the rail connection interface comprises:

preparing the rail connection interface; and

depositing a material on the prepared rail connection interface.

18 . The method according to claim 17 , wherein the preparing the rail connection interface comprises:

cleaning the rail connection interface.

19 . The method according to claim 17 , wherein the preparing the rail connection interface comprises:

depositing a bonding substrate to the rail connection interface.

Assignments (2)
RELEASE OF SECURITY INTEREST Recorded Nov 10, 2017
From: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
To: INTERNATIONAL ENGINE INTELLECTUAL PROPERTY COMPANY, LLC; INTERNATIONAL TRUCK INTELLECTUAL PROPERTY COMPANY, LLC; NAVISTAR, INC.; NAVISTAR INTERNATIONAL CORPORATION
Reel/Frame 044416/0867 →
SECURITY AGREEMENT Recorded Sep 12, 2012
From: INTERNATIONAL ENGINE INTELLECTUAL PROPERTY COMPANY, LLC; INTERNATIONAL TRUCK INTELLECTUAL PROPERTY COMPANY, LLC; NAVISTAR INTERNATIONAL CORPORATION; NAVISTAR, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 028944/0730 →