US3895618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential fuel supply system for internal combustion engines
Assignee: Individual
•
Filing: 1973-06-28
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Granted: 1975-07-22
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Expires: 1993-06-28
Abstract
Abstract A method for improving the performance of a diesel engine wherein the fuel supply is introduced into the engine by two different means, and apparatus to practice the invention. Fuel is supplied to the engine through a conventional injection nozzle. In addition, an optimum portion of the fuel is supplied through an auxiliary fuel supply apparatus. The portion supplied through the auxiliary fuel supply apparatus is metered according to the speed of or load on or a combination of the speed of and load on the diesel engine and is introduced into the diesel engine in a finely atomized or vaporized state.
Inventors
- 👤 Peter H Cerf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:58
CPC Classifications
F; F02; F02B; F02B7/00; F02B7/02; F02B1/00; F02B1/12; F02B1/02; F02B1/04; F02B75/00; F02B75/12; F02B2075/125; F02B3/00; F02B3/06; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
109 words
A differential fuel supply system for internal combustion engines comprising in combination: a diesel engine having a combustion chamber, an injection nozzle, an air supply, a fuel supply and an auxiliary fuel supply apparatus connected to the air supply of the engine at a point remote from the injection nozzle; means for determining the speed of and load on the engine including means for determining the rate of fuel flow to the engine; and means controlled by the speed and load determining means for supplying a portion of the fuel to the auxiliary fuel supply apparatus which is varied according to the speed of and load on the engine.
Claim 2
Dependent Claim
109 words
A differential fuel supply system for internal combustion engines comprising in combination: a diesel engine having a combustion chamber, an injection nozzle, an air supply, a fuel supply and an auxiliary fuel supply apparatus connected to the air supply of the engine at a point remote from the injection nozzle; means for determining the speed of and load on the engine including means for determining the rate of fuel flow to the engine; and means controlled by the speed and load determining means for supplying a portion of the fuel to the auxiliary fuel supply apparatus which is varied according to the speed of and load on the engine.
Claim 3
Dependent Claim
102 words
The differential fuel supply system of claim 1 wherein said fuel supply has inlet and return lines and said means for determining the rate of fuel flow comprises: flow meters operatively positioned to sense flow in the inlet and return lines of the fuel supply; differential means operatively associated with the flow meters to determine the difference in flow between the fuel inlet and return lines; and wherein said means for supplying a portion of the fuel to the auxiliary fuel supply apparatus comprises a positive displacement pump operatively connected to the differential means to be responsive to the difference in flow.
References Cited (Backward Citations)
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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) | 1978-07-21 | 1979-01-20 | 1979-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-21 | 1983-01-20 | 1983-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-21 | 1987-01-20 | 1987-07-22 | $7700.00 | Window Closed / Lapsed |