US2944178A - Spark plugs - Google Patents
Spark plugs Download PDFInfo
- Publication number
- US2944178A US2944178A US611249A US61124956A US2944178A US 2944178 A US2944178 A US 2944178A US 611249 A US611249 A US 611249A US 61124956 A US61124956 A US 61124956A US 2944178 A US2944178 A US 2944178A
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- US
- United States
- Prior art keywords
- main electrode
- ground electrode
- aperture
- electrode
- spark plugs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/20—Sparking plugs characterised by features of the electrodes or insulation
- H01T13/32—Sparking plugs characterised by features of the electrodes or insulation characterised by features of the earthed electrode
Description
T. S. SCHAUB July 5, 1960 SPARK PLUGS Filed Sept. 21, 1956 INVENTOR Tfiamas J. Jcaw ATTORNEY United States Patent .SPARK PLUGS Filed Sept. 21, 1956, Ser. No. 611,249
1 Claim. (Cl. 313-441) The object of my invention is to devise a novel spark plug which will give increased power and also provide increased economy in fuel consumption.
A further object of the invention is to devise a novel spark plug in which the ground electrode is in the form of a rectangular bar having a small aperture through it in longitudinal alignment with the main electrode.
A further object of the invention is to provide the forward end of the main electrode, if desired, with a small recess opening through its forward end and preferably slightly greater depth than the thickness of the ground electrode, such recess being in longitudinal alignment with the aperture in the main electrode.
Other novel features of construction and advantage will hereinafter appear in the detailed description and the appended claim.
For the purpose of illustrating the invention, I have shown in the accompanying drawings preferred embodiments of it which I have found, in practice, to give satisfactory and reliable results. It is, however, to be understood that the various instrumentalities of which the invention consists can be variously arranged and organized,
zation of these instrumentalities as herein set forth.
Figure 1 is a perspective view of a spark plug embodying my invention.
Figure 2 is a side elevation, on an enlarged scale, with a portion in section.
Figure 3 is a bottom plan view.
Figure 4 is a bottom plan view similar to that shown in Figure 3 but having a portion of the ground electrode broken away.
Figure 5 is a side elevation partly broken away of another embodiment of the invention.
Similar numerals of reference indicate corresponding parts.
Referring to the drawings:
Considering first the embodiment shown in Figures 1 to 4 inclusive, the spark plug has a body portion 1 provided with a wrench receiving portion 2, a knurled portion 3 and a forwardly extending tubular portion of reduced diameter and forming a forward extension 4 having a chamber 5 open at its fdrward end.v
An insulator 6 extends through and is sealed in the body portion and extends into the chamber 5 of the body portion.
A main electrode 7 is adapted to receive a terminal wire and extends through the insulator 6 and at its forward end has a small recess 8 opening through the front end df such main electrode.
A portion of the body portion is deflected laterally to form a ground electrode 9, preferably in the form of a 2,944,178 Patented July 5, 1960 bar rectangular in cross section extending over the main electrode and spaced from it to provide a spark gap. This ground electrode has a small aperture of uniform diameter throughout its length through it in longitudinal alignment with the aperture or recess 8. These apertures 8 and 10, as stated, are small and I have found in practice that apertures having a diameter of 25 thousandths of an inch produce very good results.
The embodiment shown in Figure 5, is the same as that shown in Figures 1 to 4, inclusive, except that the recess 8 in the main electrode has been omitted. In this embodiment, the body portion 11 has a threaded tubular extension 12 with a chamber 13 into which an insulator 14 extends. A main electrode extends through and is sealed in the insulator.
The ground electrode 16 has an aperture 17 through it in longitudinal alignment with the main electrode.
In the operation, the compressed explosive mixture is forced through the apertures 10 or 17 and impacts against the fo'rward end of the main electrode, so that when the explosion takes place the products of combustion radiate laterally in all directions forming a circle of flame to provide substantially complete combustion with increased power and economy in fuel consumption.
The employment of the recess in the main electrode appears to produce greater efiiciency.
A complete set of these plugs in tests of thousands of miles with the aperture in the ground electrode has also shown that less carbon collects on the plug and the plug is cooled by the compressed fuel passing through the ground electrode aperture.
The aperture in the ground electrode is very small and provides a jet action against the main electrode during the compression stroke which aids in maintaining the mainand ground electrodes free of carbon deposits.
Apparently, the direction of this jet action is reversed when ignition takes place.
Having thus described my invention, What I claim as new and desire to secure by Letters Patent is:
A spark plug comprising a body portion threaded for insertion into a cylinder block and having a chamber opening through its forward end, an insulator sealed in said chamber, a main electrode of substantially uniform diameter throughout its length sealed in said insulator and terminating at its forward end in a flat portion, and a ground electrode in the form of a bar connected at one end to the forward end of said body portion and extending laterally across said opening in spaced relationship with said flat portion of the main electrode and terminating a slight distance beyond said main electrode, said ground electrode having a hole of aproximately .twenty five thousandths of an inch through it in longitudinal alignment with the main electrode and of less diameter than that of the main electrode at its flat forward end.
References Cited in the file of this patent UNITED STATES PATENTS 1,028,514 Westaway June 4, 1912 1,067,791 Duffy July 15, 1913 1,322,346 Rider Nov. 18, 1919 1,352,592 Flatau Sept. 14, 1920 1,371,488 Jacobson Mar. 15, 1921 1,987,612 Fernandez Jan. 15, 1935 2,298,504 0st Oct. 13, 1942 2,616,407 Thomas Nov. 4, 1952
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US611249A US2944178A (en) | 1956-09-21 | 1956-09-21 | Spark plugs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US611249A US2944178A (en) | 1956-09-21 | 1956-09-21 | Spark plugs |
Publications (1)
Publication Number | Publication Date |
---|---|
US2944178A true US2944178A (en) | 1960-07-05 |
Family
ID=24448258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US611249A Expired - Lifetime US2944178A (en) | 1956-09-21 | 1956-09-21 | Spark plugs |
Country Status (1)
Country | Link |
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US (1) | US2944178A (en) |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3119944A (en) * | 1961-07-25 | 1964-01-28 | Champion Spark Plug Co | Spark plug electrode |
US3851637A (en) * | 1973-04-18 | 1974-12-03 | Champion Spark Plug Co | Spark plug with glow plug |
US3970885A (en) * | 1972-09-18 | 1976-07-20 | Nippondenso Co., Ltd. | Ignition plug for internal combustion engines |
US4015160A (en) * | 1976-01-14 | 1977-03-29 | Jose Hector Lara | Spark plug having electrodes shaped to produce a hollow spark column |
US4023058A (en) * | 1976-05-14 | 1977-05-10 | Jose Hector Lara | Spark plug |
US4029986A (en) * | 1976-05-20 | 1977-06-14 | Jose Hector Lara | Spark plug |
DE2852962A1 (en) * | 1977-12-28 | 1979-07-05 | Kashiwara | SPARK PLUG |
GB2164091A (en) * | 1984-09-08 | 1986-03-12 | Ford Motor Co | A spark plug for an internal combustion engine |
USRE32552E (en) * | 1971-03-16 | 1987-12-01 | Tif Instr Inc | Gaseous impurity detector employing corona discharge phenomenon |
US4851732A (en) * | 1986-10-27 | 1989-07-25 | Takeaki Kashiwara | Spark plug having a flame deflector for use in an internal combustion engine |
US4901688A (en) * | 1988-10-26 | 1990-02-20 | Ryohei Kashiwara | Ignition plug for use in internal combustion engines and an ignition process by the use thereof |
US4983877A (en) * | 1988-04-12 | 1991-01-08 | Ryohei Kashiwara | Ignition plug for use in internal combustion engines to cause instantaneous combustion |
US5007389A (en) * | 1987-12-17 | 1991-04-16 | Ryohei Kashiwara | Ignition plug for internal combustion engines and a process for igniting gas mixture by the use thereof |
US5090373A (en) * | 1990-11-30 | 1992-02-25 | Ryohei Kashiwara | Auxiliary device attachable to a convention spark plug |
US5510668A (en) * | 1994-04-18 | 1996-04-23 | Sandia Corporation | Spark gap with low breakdown voltage jitter |
US5610470A (en) * | 1993-07-12 | 1997-03-11 | Wofsey; David | Spark plug for an internal combustion engine |
US5697334A (en) * | 1996-02-16 | 1997-12-16 | Alliedsignal Inc. | Spark plug with integral retainer nut |
US5918571A (en) * | 1996-02-16 | 1999-07-06 | Allied Signal Inc. | Dual electrode high thread spark plug |
WO2000019570A1 (en) * | 1998-09-29 | 2000-04-06 | Isakovic Jakub | Up-graded device and the combustion mixture ignition process |
US9948066B2 (en) | 2015-07-01 | 2018-04-17 | Federal-Mogul Ignition Gmbh | Spark plug |
USD848486S1 (en) * | 2017-01-30 | 2019-05-14 | Zama Japan Kabushiki Kaisha | Needle valve for carburetors |
US20200080466A1 (en) * | 2017-05-15 | 2020-03-12 | Cummins Inc. | Combustion pre-chamber assemblies for an internal combustion engine |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1028514A (en) * | 1909-07-16 | 1912-06-04 | Chicago Pneumatic Tool Co | Igniter or the like. |
US1067791A (en) * | 1913-07-15 | Charles Hugh Duffy | Spark-plug. | |
US1322346A (en) * | 1919-11-18 | Granville | ||
US1352592A (en) * | 1918-10-28 | 1920-09-14 | Isaac A Hedges | Spark-plug |
US1371488A (en) * | 1919-05-13 | 1921-03-15 | Martin B Jacobson | Spark-plug |
US1987612A (en) * | 1933-06-15 | 1935-01-15 | Fernandez Gibson Corp | Spark plug |
US2298504A (en) * | 1940-06-10 | 1942-10-13 | Frederick A Ost | Spark plug |
US2616407A (en) * | 1949-10-22 | 1952-11-04 | Vernon R Thomas | Spark plug |
-
1956
- 1956-09-21 US US611249A patent/US2944178A/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1067791A (en) * | 1913-07-15 | Charles Hugh Duffy | Spark-plug. | |
US1322346A (en) * | 1919-11-18 | Granville | ||
US1028514A (en) * | 1909-07-16 | 1912-06-04 | Chicago Pneumatic Tool Co | Igniter or the like. |
US1352592A (en) * | 1918-10-28 | 1920-09-14 | Isaac A Hedges | Spark-plug |
US1371488A (en) * | 1919-05-13 | 1921-03-15 | Martin B Jacobson | Spark-plug |
US1987612A (en) * | 1933-06-15 | 1935-01-15 | Fernandez Gibson Corp | Spark plug |
US2298504A (en) * | 1940-06-10 | 1942-10-13 | Frederick A Ost | Spark plug |
US2616407A (en) * | 1949-10-22 | 1952-11-04 | Vernon R Thomas | Spark plug |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3119944A (en) * | 1961-07-25 | 1964-01-28 | Champion Spark Plug Co | Spark plug electrode |
USRE32552E (en) * | 1971-03-16 | 1987-12-01 | Tif Instr Inc | Gaseous impurity detector employing corona discharge phenomenon |
US3970885A (en) * | 1972-09-18 | 1976-07-20 | Nippondenso Co., Ltd. | Ignition plug for internal combustion engines |
US3851637A (en) * | 1973-04-18 | 1974-12-03 | Champion Spark Plug Co | Spark plug with glow plug |
US4015160A (en) * | 1976-01-14 | 1977-03-29 | Jose Hector Lara | Spark plug having electrodes shaped to produce a hollow spark column |
US4023058A (en) * | 1976-05-14 | 1977-05-10 | Jose Hector Lara | Spark plug |
US4029986A (en) * | 1976-05-20 | 1977-06-14 | Jose Hector Lara | Spark plug |
DE2852962A1 (en) * | 1977-12-28 | 1979-07-05 | Kashiwara | SPARK PLUG |
US4401915A (en) * | 1977-12-28 | 1983-08-30 | Takeaki Kashiwara | Ignition plug for an internal combustion engine |
GB2164091A (en) * | 1984-09-08 | 1986-03-12 | Ford Motor Co | A spark plug for an internal combustion engine |
US4851732A (en) * | 1986-10-27 | 1989-07-25 | Takeaki Kashiwara | Spark plug having a flame deflector for use in an internal combustion engine |
US5007389A (en) * | 1987-12-17 | 1991-04-16 | Ryohei Kashiwara | Ignition plug for internal combustion engines and a process for igniting gas mixture by the use thereof |
US4983877A (en) * | 1988-04-12 | 1991-01-08 | Ryohei Kashiwara | Ignition plug for use in internal combustion engines to cause instantaneous combustion |
US4901688A (en) * | 1988-10-26 | 1990-02-20 | Ryohei Kashiwara | Ignition plug for use in internal combustion engines and an ignition process by the use thereof |
US5090373A (en) * | 1990-11-30 | 1992-02-25 | Ryohei Kashiwara | Auxiliary device attachable to a convention spark plug |
US5610470A (en) * | 1993-07-12 | 1997-03-11 | Wofsey; David | Spark plug for an internal combustion engine |
US5510668A (en) * | 1994-04-18 | 1996-04-23 | Sandia Corporation | Spark gap with low breakdown voltage jitter |
US5697334A (en) * | 1996-02-16 | 1997-12-16 | Alliedsignal Inc. | Spark plug with integral retainer nut |
US5918571A (en) * | 1996-02-16 | 1999-07-06 | Allied Signal Inc. | Dual electrode high thread spark plug |
WO2000019570A1 (en) * | 1998-09-29 | 2000-04-06 | Isakovic Jakub | Up-graded device and the combustion mixture ignition process |
US9948066B2 (en) | 2015-07-01 | 2018-04-17 | Federal-Mogul Ignition Gmbh | Spark plug |
USD848486S1 (en) * | 2017-01-30 | 2019-05-14 | Zama Japan Kabushiki Kaisha | Needle valve for carburetors |
US20200080466A1 (en) * | 2017-05-15 | 2020-03-12 | Cummins Inc. | Combustion pre-chamber assemblies for an internal combustion engine |
US11614027B2 (en) * | 2017-05-15 | 2023-03-28 | Cummins Inc. | Combustion pre-chamber assemblies for an internal combustion engine |
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