US3592175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressurized fuel system
Assignee: Deutz Allis Corp
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Filing: 1968-12-06
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Granted: 1971-07-13
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Expires: 1988-12-06
Abstract
Abstract A fuel system pressurized by an engine supercharger.
Inventors
- 👤 William I Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:36
CPC Classifications
F; F02; F02M; F02M37/00; F02M37/04; F02M37/12; F02B; F02B1/00; F02B37/00; F02B37/12; F02B37/16; F02B37/164; F02B1/02; F02B1/04; F02D; F02D2200/00; F02D2200/02; F02D2200/06; F02D2200/0602; F02D41/00; F02D41/30; F02D41/38; F02D41/3809; F02D41/3836; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/438; F02M2700/4383; F02M2700/4385; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
135 words
A closed pressurized fuel injection system for an internal combustion engine comprising, a fuel supply tank, a fuel feeding means including a fuel injection pump for feeding fuel to said internal combustion engine, a fuel supply line connecting said fuel supply tank with said fuel feeding means, a source of pressurized air adapted for supplying combustion air to said engine, an air conduit directly connecting said source of pressurized air to said fuel supply tank, said source of pressurized air continuously pressurizing the supply tank and said fuel supply line thus maintaining a higher than atmospheric pressure in said fuel supply line, a fuel pump in said fuel supply line producing fuel flow and maintaining pressure on the fuel supplied to said fuel feeding means to thereby provide an enclosed and pressurized fuel injection system.
Claim 2
Dependent Claim
135 words
A closed pressurized fuel injection system for an internal combustion engine comprising, a fuel supply tank, a fuel feeding means including a fuel injection pump for feeding fuel to said internal combustion engine, a fuel supply line connecting said fuel supply tank with said fuel feeding means, a source of pressurized air adapted for supplying combustion air to said engine, an air conduit directly connecting said source of pressurized air to said fuel supply tank, said source of pressurized air continuously pressurizing the supply tank and said fuel supply line thus maintaining a higher than atmospheric pressure in said fuel supply line, a fuel pump in said fuel supply line producing fuel flow and maintaining pressure on the fuel supplied to said fuel feeding means to thereby provide an enclosed and pressurized fuel injection system.
Claim 3
Dependent Claim
42 words
A pressurized fuel system as set forth in claim 1 wherein said air conduit from said source of pressurized air to said fuel tank includes a check valve for unidirectional flow of pressurized air and maintaining a residual pressure in said tank.
Claim 4
Dependent Claim
27 words
A pressurized fuel system as set forth in claim 1 wherein said source of pressurized air comprises an air blower for connection to said fuel supply tank.
Claim 5
Dependent Claim
36 words
A pressurized fuel system as set forth in claim 1 wherein said fuel supply line includes a fuel filter between said fuel tank and said fuel pump for filtering the fuel flowing through said supply liNe.
Claim 6
Dependent Claim
32 words
A pressurized fuel system as set forth in claim 1 wherein said source of pressurized air includes a supercharger for connection to an internal combustion engine for pressurizing said fuel supply tank.
Claim 7
Dependent Claim
24 words
A pressurized fuel system as set forth in claim 1 wherein said source of pressurized air includes a turbocharger pressurizing said fuel supply tank.
Claim 8
Dependent Claim
31 words
A pressurized fuel system as set forth in claim 1 wherein said source of pressurized air includes an air filter for filtering the air supplied for pressurizing said fuel supply tank.
References Cited (Backward Citations)
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Cited
US1097365A
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US1396976A
Cited
US1413419A
Cited
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Cited
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Cited
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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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |