US4061114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lean charge ignition system
Assignee: Individual
•
Filing: 1976-08-20
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Granted: 1977-12-06
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Expires: 1996-08-20
Abstract
Abstract An improved lean charge fuel ignition system for use with internal combustion engines and is conceptually based on the stratified charge condition. This system has a fuel igniter mechanism which includes a pair of passages formed in one of the electrodes of the fuel igniter. Enrichment fuel is injected into the neighborhood of a spark gap which is in a secondary chamber containing a lean fuel-air mixture. Upon ignition of the resulting enriched mixture a flame front propagates to the engine cylinder chamber where ignition of the lean mixture of fuel and air is initiated. The second passage formed within one of the electrodes of the fuel igniter means is connected to a fuel injection device which includes a spray pump actuated by the standard cycling pressures formed within the engine cylinder chamber to provide necessary metering and flow of enrichment fuel through the second passage of the electrodes into the neighborhood of the spark gap.
Inventors
- 👤 Nathan H. Christopher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:27
CPC Classifications
F; F02; F02B; F02B17/00; F02B17/005; F02B19/00; F02B19/10; F02B19/1019; F02B19/108; F02M; F02M57/00; F02M57/06; F02B1/00; F02B1/02; F02B1/04; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
101 words
An improved fuel ignition system for an internal combustion engine having at least one engine cylinder, comprising: a. fuel igniter means having a pair of electrodes, one of said electrodes having (1) a first passage, and (2) a second passage for inlet of fuel into a neighborhood of a spark gap formed by said electrodes; and, b. fuel injection means having a pair of fuel injection means passages aligned with said first and second passages of said fuel igniter means, said fuel injection means being coupled to a fuel supply for displacing said fuel through said fuel igniter means second passage.
Claim 2
Dependent Claim
101 words
An improved fuel ignition system for an internal combustion engine having at least one engine cylinder, comprising: a. fuel igniter means having a pair of electrodes, one of said electrodes having (1) a first passage, and (2) a second passage for inlet of fuel into a neighborhood of a spark gap formed by said electrodes; and, b. fuel injection means having a pair of fuel injection means passages aligned with said first and second passages of said fuel igniter means, said fuel injection means being coupled to a fuel supply for displacing said fuel through said fuel igniter means second passage.
Claim 3
Dependent Claim
48 words
The improved fuel ignition system as recited in claim 1 where said fuel injection means includes a. spray pump means for inserting a predetermined quantity of said fuel into said neighborhood of said spark gap; and, b. an igniter chamber enclosing said spark gap formed by said electrodes.
Claim 4
Dependent Claim
54 words
The improved fuel ignition system as recited in claim 2 wherein said spray pump means includes: piston means coupled to a first fuel injection means passage aligned with said fuel igniter means first passage, said piston means for displacing said fuel into said igniter chamber responsive to a compression stroke within said engine cylinder.
Claim 5
Dependent Claim
55 words
The improved fuel ignition system as recited in claim 3 wherein said pump means includes: a. a first conduit coupled to said fuel supply and a fuel insertion chamber; and, b. a second conduit coupled to said fuel insertion chamber and a second fuel injection means passage aligned with said fuel igniter means second passage.
Claim 6
Dependent Claim
35 words
The improved fuel ignition system as recited in claim 4 where said first conduit includes first check valve means for providing flow from said fuel supply to said fuel insertion chamber and negating flow opposingly.
Claim 7
Dependent Claim
36 words
The improved fuel ignition system as recited in claim 4 where said second conduit includes second check valve means being actuatable to provide flow from said fuel insertion chamber to said fuel igniter means second passage.
Claim 8
Dependent Claim
41 words
The improved fuel ignition system as recited in claim 1 where said fuel igniter means includes spark plug means where said electrode having said first and second passages includes means for uniformly spraying said fuel mixture into said spark gap neighborhood.
Claim 9
Dependent Claim
29 words
The improved fuel ignition system as recited in claim 7 where said uniform spraying means includes said second passage having divergent flow passage conduits into said spark gap neighborhood.
Claim 10
Dependent Claim
23 words
The improved fuel ignition system as recited in claim 1 where said fuel igniter means is in continuous relation to said engine cylinder.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-05 | 1981-06-06 | 1981-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-05 | 1985-06-06 | 1985-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-05 | 1989-06-06 | 1989-12-06 | $7700.00 | Window Closed / Lapsed |