Fuel Injector Cleaning Apparatus

• US 20090090399A1
• Filed: 01/25/2008
• Published: 04/09/2009
• Est. Priority Date: 10/09/2007
• Status: Abandoned Application

• Current Assignee: Hung Tooling Co., Ltd.
• Original Assignee: Hung Tooling Co., Ltd.
• Inventors: Lee-Liao, Man
• Application Number:
  US12/019,954
• Publication Number:
  US 20090090399A1
• Time in Patent Office: Days
• US Class Current: 134/169.00A
• CPC Class Codes: B08B 9/00 Cleaning hollow articles by methods or apparatus specially adapted thereto B08B6/00 takes precedence
• CPC Class Codes: F02M 65/008 of injectors only

Abstract

A fuel injector cleaning apparatus comprises a platform including a delivery channel, a first orifice adapted for connecting to a source of cleaning fluid and in communication with the delivery channel. An outlet device has one end mounted on the platform and another end for coupling to a fuel injector. A switch device mounted on the outlet device is moveable between a first condition so as to allow the cleaning fluid flow out of the outlet device and a second condition so as to stop the cleaning fluid from flowing out of the outlet device. A pumping device has one end mounted on the platform and another end operably moveable so as to introduce the cleaning fluid into the platform and to the outlet device, whereby the cleaning fluid is released from the outlet device at a predetermined pressure so as to clean the fuel injector thoroughly.

Claims

1. A fuel injector cleaning apparatus comprising:

a platform including a delivery channel, a first orifice adapted for connecting to a source of cleaning fluid and in communication with the delivery channel;

an outlet device having one end mounted on the platform and another end for coupling to a fuel injector;

a switch device mounted on the outlet device being moveable between a first condition so as to allow the cleaning fluid flow out of the outlet device and a second condition so as to stop the cleaning fluid from flowing out of the outlet device; and

a pumping device having one end mounted on the platform and another end operably moveable so as to introduce the cleaning fluid into the platform and to the outlet device, whereby the cleaning fluid is released from the outlet device at a predetermined pressure so as to clean the fuel injector thoroughly.

2. The fuel injector cleaning apparatus as claimed in claim 1 further comprising a reservoir connected to the platform for containing cleaning fluid to be delivered to the platform.

3. The fuel injector cleaning apparatus as claimed in claim 1 wherein the outlet device comprises a conduit having one end coupled to the platform, a joint having one end coupled to another end of the conduit.

5. The fuel injector as claimed in claim 1 wherein the switch device comprises a housing having one end coupled to the outlet device, a spindle moveably mounted in the housing.

8. The fuel injector as claimed in claim 1 wherein the pumping device comprises a joint member having one end mounted on the platform, a rod received in and moving in relation to the joint member, and an operation member mounted to and moving in relation to the rod.

9. The fuel injector as claimed in claim 8 wherein the pumping device comprises an extension connected to the platform, and a linkage member for coupling the extension to the operation member.

10. The fuel injector as claimed in claim 1 wherein the delivery channel comprises at least one check-valve disposed therein.

11. The fuel injector as claimed in claim 1 wherein the outlet device comprises a check-valve disposed therein.

12. The fuel injector as claimed in claim 5 wherein the housing comprises defines a first void and a second void, with the first void having an internal diameter smaller than that of the second void.

14. The fuel injector as claimed in claim 1 wherein the outlet device comprises a pressure regulator mounted thereto.

15. The fuel injector as claimed in claim 1 wherein the platform comprises a first engagement hole adapted to receive an end of the outlet device and in communication with the delivery channel, and a second engagement hole adapted to receive an end of the pumping device and in communication with the delivery channel.

4. The fuel injector as claimed in claim 4 further comprising a first adapter interconnecting the joint and the conduit and a second adapter interconnecting the joint and the fuel injector, and wherein the joint comprises a first joining end connecting with the first adapter and a second joining end connecting with the second adapter, the joint further comprises a recess for radially receiving the switch device, a first hole extended in communication between the first joining end and the recess, and a second hole extended in communication between the second joining end and the recess.

6. The fuel injector as claimed in claim 4 wherein the switch device comprises a housing having one end received in the recess, a spindle moveably mounted in the housing and the recess.

7. The fuel injector as claimed in claim 6 wherein the spindle is moveable inward of the recess so as to allow the fluidic communication between the first and second holes and outward of the recess so as to block the fluidic communication between the first and second holes.

13. The fuel injector as claimed in claim 6 wherein the housing comprises defines a first void and a second void, with the first void having an internal diameter than that of the second void.