US3240190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine
Assignee: Daimler Benz AG
•
Filing: 1963-08-27
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Granted: 1966-03-15
•
Expires: 1983-08-27
Abstract
No abstract record available.
Inventors
- 👤 Christian Manfred
- 👤 Schmidt Herbert
- 👤 Eisele Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:56
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/24; F02F1/42; F02F1/4228; F02B; F02B23/00; F02B23/02; F02B23/06; F02B23/0696; F02F1/4214; F02B2275/00; F02B2275/14; F02B2275/34; F02B23/0618; F02B23/0621; F02B23/0645; F02B3/00; F02B3/06; F02F2001/244; F02F2001/247; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A CYLINDER HEAD STRUCTURE FOR INTERNAL COMBUSTION ENGINES, ESPECIALLY DIESEL ENGINES, WITH FOUR VALVES FOR EACH CYLINDER, OF WHICH TWO INLET AND TWO OUTLET VALVES ARE DISPOSED RESPECTIVELY ADJACENT ONE ANOTHER AND BEHIND ONE ANOTHER SUBSTANTIALLY IN THE MAIN SUPPLY DIRECTION OF THE COMBUSTION AIR, COMPRISING: TWO COMPLETELY SEPARATE INLET CHANNELS WHICH EXTEND SUBSTANTIALLY ENTIRELY WITHIN THE SAME CYLINDER TRANSVERSE PLANE SUBSTANTIALLY PARALLELLY TO THE STRAIGHT LINE THROUGH THE CENTERS OF THE TWO INLET APERTURES ADJACENT ONE ANOTHER AND IN THE FURTHER COURSE THEREOF ADJACENT SAID CYLINDER ARE CURVED TOWARD EACH OTHER IN SAID TRANSVERSE PLANE IN A STAGGERED MANNER WHEREBY THE COMBUSTION AIR, AS VIEWED IN A PLANE EXTENDING TRANSVERSELY TO THE CYLINDER AXIS, IS SUPPLIED AT BOTH INLET APERTURES IN THE SAME DIRECTION OF ROTATION SUBSTANTIALLY TANGENTIALLY TO THE CYLINDER SPACE.
Claim 2
Dependent Claim
133 words
A CYLINDER HEAD STRUCTURE FOR INTERNAL COMBUSTION ENGINES, ESPECIALLY DIESEL ENGINES, WITH FOUR VALVES FOR EACH CYLINDER, OF WHICH TWO INLET AND TWO OUTLET VALVES ARE DISPOSED RESPECTIVELY ADJACENT ONE ANOTHER AND BEHIND ONE ANOTHER SUBSTANTIALLY IN THE MAIN SUPPLY DIRECTION OF THE COMBUSTION AIR, COMPRISING: TWO COMPLETELY SEPARATE INLET CHANNELS WHICH EXTEND SUBSTANTIALLY ENTIRELY WITHIN THE SAME CYLINDER TRANSVERSE PLANE SUBSTANTIALLY PARALLELLY TO THE STRAIGHT LINE THROUGH THE CENTERS OF THE TWO INLET APERTURES ADJACENT ONE ANOTHER AND IN THE FURTHER COURSE THEREOF ADJACENT SAID CYLINDER ARE CURVED TOWARD EACH OTHER IN SAID TRANSVERSE PLANE IN A STAGGERED MANNER WHEREBY THE COMBUSTION AIR, AS VIEWED IN A PLANE EXTENDING TRANSVERSELY TO THE CYLINDER AXIS, IS SUPPLIED AT BOTH INLET APERTURES IN THE SAME DIRECTION OF ROTATION SUBSTANTIALLY TANGENTIALLY TO THE CYLINDER SPACE.
References Cited (Backward Citations)
US3125075A
Cited
US2269104A
Cited
US2318914A
Cited
US2610617A
Cited
GB868525A
Cited
US3054390A
Cited
US3045655A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |