Spark Plug

• US 20090079318A1
• Filed: 10/13/2008
• Published: 03/26/2009
• Est. Priority Date: 04/20/2006
• Status: Abandoned Application

• Current Assignee: Hosny Ibrahim Sabry
• Original Assignee: Hosny Ibrahim Sabry
• Inventors: Sabry, Hosny Ibrahim
• Application Number:
  US12/250,112
• Publication Number:
  US 20090079318A1
• Time in Patent Office: Days
• US Class Current: 313/140
• CPC Class Codes: H01T 13/20 characterised by features of the electrodes or insulation
• CPC Class Codes: H01T 13/39 Selection of materials for electrodes
• CPC Class Codes: H01T 13/467 in parallel connection

Abstract

The improved spark plug of the present invention includes three parallel electrodes in the form of letter (T) of identical strips made of nickel alloys or iridium. The positive electrode lies in the middle between the negative electrodes, so that each negative electrode is welded to the threaded end of the plug body. All the electrodes are in vertical position, and in the same horizontal plane. The gap distance between the electrodes is the same as in the traditional spark plug. Finally, the great area of the opposite electrodes (32 mm²) with respect to conventional spark plugs contributes to stronger sparks and more consistent firing.

Claims

1. A spark plug comprising a central positive electrode in a shape of a capital letter T, wherein a vertical portion of the positive electrode is aligned with a central axis of the spark plug, and wherein a horizontal part of the positive electrode is a metallic tape of nickel or iridium alloys arranged in a vertical position.

2. The spark plug of claim 1, further comprising:

two negative electrodes, wherein the positive electrode lies exactly at the middle between the two negative electrodes, wherein each of the two negative electrodes is a metallic tape of nickel or iridium alloys, and wherein the two negative electrodes are completely parallel to the horizontal part of the positive electrode; and

two metallic rods respectively connecting ends of the two negative electrodes to a threaded body of the plug.

3. The spark plug of claim 2, wherein distances between the horizontal part of the positive electrode and each of the two negative electrodes are between 0.5-1.016 mm.

4. The spark plug of claim 2, wherein the two negative electrodes are of identical dimensions with the horizontal part of the positive electrode.

5. The spark plug of claim 2, wherein the two negative electrodes each comprise a smaller dimension than the horizontal part of the positive electrode.

6. The spark plug of claim 2, wherein the two negative electrodes are at the same horizontal level as the horizontal part of the positive electrode.

7. The spark plug of claim 2, wherein the two negative electrodes are in the shape of the capital letter T.

8. The spark plug of claim 7, wherein the two negative electrodes are of identical dimensions with the positive electrode.

9. The spark plug of claim 1, further comprising:

a single negative electrode, wherein the single negative electrode is a metallic tape of nickel or iridium alloys, and wherein the single negative electrode is completely parallel to the horizontal part of the positive electrode; and

a metallic rod connecting the single negative electrode to a threaded body of the plug.

10. The spark plug of claim 9, wherein the single negative electrode is at the same horizontal level as the horizontal part of the positive electrode.

11. The spark plug of claim 9, wherein the single negative electrode is in the shape of the capital letter T.

12. The spark plug of claim 11, wherein the single negative electrode is of identical dimensions with the positive electrode.