US3592173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multicylinder internal combustion engine
Assignee: WALTER GUTBROD AND WOLFGANG GUTBROD GUTBROD-WERKE GMBH
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Filing: 1969-07-07
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Granted: 1971-07-13
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Expires: 1989-07-07
Abstract
Abstract An internal combustion engine having two or more cylinders vertically disposed, one relative to the other or others, the fuel for the vertically disposed cylinders being supplied through a single main induction pipe, the conduit being in fluid communication with a horizontally divided cylinder induction conduit, a portion of the divided cylinder induction conduit being utilized for each of the plurality of cylinders for feeding fuel mixture thereto.
Inventors
- 👤 Dieter Frehe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:09
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/20; F02B25/00; F02B25/26; F02B75/02; F02B2075/022; F02B2075/025
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
142 words
A fuel intake system for supplying a fuel charge mixture to at least one combustion chamber of an internal combustion engine, the intake system being under the influence of the force of gravity to affect the mixture of the charge due to the force of gravity, the intake system comprising a common intake conduit, individual conduit means in fluid communication with said common conduit and downstream of said common conduit relative to the direction of flow of the fuel charge, said individual conduit means having portions arranged to direct the fuel charge upwardly and downwardly relative to the direction of the force of gravity, and apportioning means positioned between said individual conduit means portions and at least a portion of said common conduit for apportioning, free of the effects of the force of gravity, the fuel charge to said individual conduit means.
Claim 2
Dependent Claim
142 words
A fuel intake system for supplying a fuel charge mixture to at least one combustion chamber of an internal combustion engine, the intake system being under the influence of the force of gravity to affect the mixture of the charge due to the force of gravity, the intake system comprising a common intake conduit, individual conduit means in fluid communication with said common conduit and downstream of said common conduit relative to the direction of flow of the fuel charge, said individual conduit means having portions arranged to direct the fuel charge upwardly and downwardly relative to the direction of the force of gravity, and apportioning means positioned between said individual conduit means portions and at least a portion of said common conduit for apportioning, free of the effects of the force of gravity, the fuel charge to said individual conduit means.
Claim 3
Dependent Claim
35 words
The improvement of claim 1 wherein said apportioning means has an intake opening, and divider means positioned in said intake opening and extending in a direction parallel to a line along the force of gravity.
Claim 4
Dependent Claim
36 words
The improvement of claim 2 wherein the internal combustion engine includes a plurality of combustion chambers which are superposed and said divider means is vertically disposed and generally parallel to a line through the superposed chambers.
Claim 5
Dependent Claim
22 words
The improvement of claim 3 wherein said intake opening divider means forms two chambers in side-by-side relationship, one relative to the other.
Claim 6
Dependent Claim
38 words
The improvement of claim 4 wherein said individual conduit means includes at least two individual conduit portions having outlet openings into at least one combustion chamber, the conduits being curved such that the outlet openings are superposed vertically.
Claim 7
Dependent Claim
29 words
The improvement of claim 5 wherein said outlets of said individual conduit portions for each superposed combustion chamber are connected to the combustion chamber in the same relative position.
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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 |