US3298332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine supercharging
Assignee: MAN AG
•
Filing: 1964-07-20
•
Granted: 1967-01-17
•
Expires: 1984-07-20
Abstract
No abstract record available.
Inventors
- 👤 Elsbett Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:07
CPC Classifications
F; F02; F02B; F02B33/00; F01; F01L; F01L13/00; F01L13/0015; F02B27/00; F02B27/005; F02B27/006; F02B27/008; F02M; F02M1/00; F02B75/00; F02B75/16; F02B75/18; F02B2075/1804; F02B2075/1816; F02B2075/1824; F02M2700/00; F02M2700/33; F02M2700/331; F02M2700/43; F02M2700/4302; F02M2700/4392; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
IN A FOUR-CYCLE MULTI-CYLINDER INTERNAL COMBUSTION PISTON ENGINE IN WHICH THE MASS EFFECT OF THE INTAKE AIR IN ONE ENGINE CYLINDER IS INCREASED BY THE OVERLAPPING OF THE INTAKE AIR AND EXHAUST GAS CHANGEOVER PERIODS IN THE CYLINDER, THE IMPROVEMENT COMPRISING AN AIR INTAKE PIPE COMMON TO EACH THREE CYLINDERS HAVING INTAKE VALVE OPENING TIMES SEPARATED BY A CRANKSHAFT ANGLE OF 240*, AND AN EXHAUST GAS PIPE COMMON TO EACH TWO CYLINDERS HAVING EXHAUST VALVE OPENING TIMES SEPARATED BY A CRANKSHAFT ANGLE OF 360*, SAID OVERLAPPING OF THE INTAKE AIR AND EXHAUST GAS CHANGEOVER PERIODS IN EACH ONE OF SAID TWO CYLINDERS OF SAID FOUR CYCLE ENGINE BEING SUCH THAT THE INTAKE AIR IS DRAWN THROUGH SAID ONE OF SAID TWO CYLINDERS AND INTO SAID EXHAUST PIPE, AND THE EXHAUST VALVE OPENING TIMES FOR THE SAID TWO CYLINDERS BEING OVERLAPPING FOR FORCING THE AIR BACK INTO SAID ONE OF SAID TWO CYLINDERS BY THE EXHAUST GAS PRESSURE OF THE OTHER CYLINDER, ONE OF SAID EACH TWO CYLINDERS BEING CONNECTED TO ONE OF SAID INTAKE PIPES AND AND THE OTHER OF SAID EACH TWO CYLINDERS BEING CONNECTED TO ANOTHER OF SAID INTAKE PIPES.
Claim 2
Dependent Claim
192 words
IN A FOUR-CYCLE MULTI-CYLINDER INTERNAL COMBUSTION PISTON ENGINE IN WHICH THE MASS EFFECT OF THE INTAKE AIR IN ONE ENGINE CYLINDER IS INCREASED BY THE OVERLAPPING OF THE INTAKE AIR AND EXHAUST GAS CHANGEOVER PERIODS IN THE CYLINDER, THE IMPROVEMENT COMPRISING AN AIR INTAKE PIPE COMMON TO EACH THREE CYLINDERS HAVING INTAKE VALVE OPENING TIMES SEPARATED BY A CRANKSHAFT ANGLE OF 240*, AND AN EXHAUST GAS PIPE COMMON TO EACH TWO CYLINDERS HAVING EXHAUST VALVE OPENING TIMES SEPARATED BY A CRANKSHAFT ANGLE OF 360*, SAID OVERLAPPING OF THE INTAKE AIR AND EXHAUST GAS CHANGEOVER PERIODS IN EACH ONE OF SAID TWO CYLINDERS OF SAID FOUR CYCLE ENGINE BEING SUCH THAT THE INTAKE AIR IS DRAWN THROUGH SAID ONE OF SAID TWO CYLINDERS AND INTO SAID EXHAUST PIPE, AND THE EXHAUST VALVE OPENING TIMES FOR THE SAID TWO CYLINDERS BEING OVERLAPPING FOR FORCING THE AIR BACK INTO SAID ONE OF SAID TWO CYLINDERS BY THE EXHAUST GAS PRESSURE OF THE OTHER CYLINDER, ONE OF SAID EACH TWO CYLINDERS BEING CONNECTED TO ONE OF SAID INTAKE PIPES AND AND THE OTHER OF SAID EACH TWO CYLINDERS BEING CONNECTED TO ANOTHER OF SAID INTAKE PIPES.
References Cited (Backward Citations)
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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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |