Patent US4903675A successfully refreshed from Google Patents.
US4903675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine ignition apparatus having a primary winding module
Assignee: Motors Liquidation Co
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Filing: 1989-03-13
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Granted: 1990-02-27
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Expires: 2009-03-13
Abstract
Abstract Ignition apparatus for developing and applying sparks to the cylinders of an internal combustion engine. A plurality of a secondary spark developing units are respectively associated with the cylinders of the engine. Each secondary unit comprises a spark plug and a secondary winding carried by the spark plug that is connected to the electrodes of the spark plug. Magnetic flux is coupled to the secondary winding of the secondary units by a primary winding module. The module has a support portion and a plurality of spaced tubular members. A primary coil having a bore is located in each tubular member. A tubular flux carrying part formed of magnetic material is located about each primary coil. The module is supported by the engine in such a position that portions of the secondary units project into the bores when the module is mounted on an engine.
Inventors
- 👤 Dwayne A. Huntzinger
- 👤 Thomas E. Welsh, Jr.
- 👤 James A. Boyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:04
CPC Classifications
F; F02; F02P; F02P13/00; F02P3/00; F02P3/02; F02P7/00; F02P7/02; F02P7/03; F02P7/035; H; H01; H01F; H01F38/00; H01F38/12; H01T; H01T13/00; H01T13/40; H01T13/44; H01F2038/122
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
108 words
A primary winding ignition module that is adapted to be mounted on an internal combustion engine and which is adapted to be magnetically coupled to a plurality of separate spark developing units associated with the cylinders of the engine comprising, an elongated support, a plurality of spaced tubular members carried by said support, a primary coil winding located in each tubular member having a bore, and conductor means carried by said support connected respectively to opposite ends of a respective primary winding for energizing a respective primary winding, said bores adapted to receive portions of said secondary spark developing units when said module is mounted on an engine.
Claim 2
Dependent Claim
108 words
A primary winding ignition module that is adapted to be mounted on an internal combustion engine and which is adapted to be magnetically coupled to a plurality of separate spark developing units associated with the cylinders of the engine comprising, an elongated support, a plurality of spaced tubular members carried by said support, a primary coil winding located in each tubular member having a bore, and conductor means carried by said support connected respectively to opposite ends of a respective primary winding for energizing a respective primary winding, said bores adapted to receive portions of said secondary spark developing units when said module is mounted on an engine.
Claim 3
Dependent Claim
30 words
The module according to claim 1 where a tubular flux carrying part formed of magnetic material is located in each tubular member and disposed about a respective primary coil winding.
Claim 4
Dependent Claim
17 words
The module according to claim 1 where said elongated support is formed of plastic electrical insulating material.
Claim 5
Dependent Claim
34 words
The module according to claim 1 where said spaced tubular members are integral with said elongated support and where the elongated support and tubular members are formed of a molded plastic electrical insulating material.
Claim 6
Dependent Claim
29 words
The module according to claim 1 where the primary winding is supported by a spool of electrical insulating material that is located in a tubular member and supported thereby.
Claim 7
Dependent Claim
29 words
The module according to claim 1 where the module carries components of a capacitor discharge ignition system that is connected to said conductor means to energize said primary windings.
Claim 8
Dependent Claim
121 words
A primary winding ignition module that is adapted to be mounted on an internal combustion engine and which is adapted to be magnetically coupled to a plurality of separate secondary spark developing units associated with the cylinders of the engine comprising, a one-piece part formed of molded plastic insulating material, said one-piece part comprising an elongated support portion and a plurality of spaced tubular portions that are located normal to said support portion, a tubular coil spool located in each tubular portion and supported by a respective tubular portion, a primary coil supported by each coil spool, and conductor means located in said support portion connected respectively to opposite ends of a respective primary winding for energizing a respective primary winding.
Claim 9
Dependent Claim
121 words
A primary winding ignition module that is adapted to be mounted on an internal combustion engine and which is adapted to be magnetically coupled to a plurality of separate secondary spark developing units associated with the cylinders of the engine comprising, a one-piece part formed of molded plastic insulating material, said one-piece part comprising an elongated support portion and a plurality of spaced tubular portions that are located normal to said support portion, a tubular coil spool located in each tubular portion and supported by a respective tubular portion, a primary coil supported by each coil spool, and conductor means located in said support portion connected respectively to opposite ends of a respective primary winding for energizing a respective primary winding.
Claim 10
Dependent Claim
28 words
The module according to claim 7 where each tubular portion has a tubular flux carrying member formed of magnetic material that is disposed about a respective primary coil.
Claim 11
Dependent Claim
168 words
Ignition apparatus for developing and applying sparks to a plurality of cylinders of an internal combustion engine comprising, an engine having a plurality of cylinders, a secondary spark developing unit associated with each cylinder, each secondary unit comprising a spark plug and a secondary winding that is connected to the electrodes of the spark plug, a primary winding module supported by said engine, said module comprising an elongated support and a plurality of spaced tubular members carried by said support equal in number to the number of secondary units associated with said engine, a primary coil winding located in each tubular member having a bore, and conductor means carried by said support connected to opposite ends of a respective primary winding for energizing a respective primary winding, said module being so positioned that a portion of a secondary unit that has a secondary winding is located in a respective said bore whereby a spark firing voltage is induced in a secondary winding when a primary winding is energized.
Claim 12
Dependent Claim
168 words
Ignition apparatus for developing and applying sparks to a plurality of cylinders of an internal combustion engine comprising, an engine having a plurality of cylinders, a secondary spark developing unit associated with each cylinder, each secondary unit comprising a spark plug and a secondary winding that is connected to the electrodes of the spark plug, a primary winding module supported by said engine, said module comprising an elongated support and a plurality of spaced tubular members carried by said support equal in number to the number of secondary units associated with said engine, a primary coil winding located in each tubular member having a bore, and conductor means carried by said support connected to opposite ends of a respective primary winding for energizing a respective primary winding, said module being so positioned that a portion of a secondary unit that has a secondary winding is located in a respective said bore whereby a spark firing voltage is induced in a secondary winding when a primary winding is energized.
Claim 13
Dependent Claim
15 words
The ignition apparatus according to claim 9 where each secondary unit has a magnetic core.
Claim 14
Dependent Claim
19 words
The ignition apparatus according to claim 9 where the primary windings are energized by a capacitor discharge ignition system.
Claim 15
Dependent Claim
25 words
The ignition apparatus according to claim 9 where said elongated support and tubular members are formed as a one-piece plastic part of plastic insulating material.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-26 | 1993-08-28 | 1994-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-26 | 1997-08-28 | 1998-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-26 | 2001-08-28 | 2002-02-27 | $7700.00 | Window Closed / Lapsed |