US3144749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two cycle supercharged difsel engine
Assignee: Individual
•
Filing: 1956-11-26
•
Granted: 1964-08-18
•
Expires: 1976-11-26
Abstract
No abstract record available.
Inventors
- 👤 Miller Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:55
CPC Classifications
F; F02; F02D; F02D13/00; F02D13/02; F02D13/028; F02D13/0284; F02B; F02B25/00; F02B25/02; F02B25/04; F02B29/00; F02B29/04; F02B29/0406; F02B29/0437; F02B41/00; F02B41/02; F02B41/04; F02D13/0269; F02D23/00; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; F02B2275/00; F02B2275/32; F02B3/00; F02B3/06; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN A SUPERCHARGED, INTERCOOLED, TWO-STROKE CYCLE, UNIFLOW, COMPRESSION IGNITION ENGINE, HAVING A CYLINER WITH INLET PORTS AROUND THE CYLINDER WALL AND AT LEAST ONE EXHAUST VALVE FOR THE CYLINDER HEAD, A METHOD OF OPERATING SUCH AN ENGINE SO AS TO INCREASE THE TOTAL WEIGHT OF AIR IN THE COMBUSTION CHAMBER WITHOUT INCREASING THE FINAL COMBUSTION PRESSURE AND TEMPERATURE ABOVE A PREDETERMINED MAXIMUM: INCLUDING THE STEPS OF INCREASING THE COMPRESSION EFFECTED IN THE SUPERCHARGER AT FULL LOAD TO A SELECTED COMPRESSION RATIO ABOVE THOSE NORMALLY USED, FOR EXAMPLE A PRESSURE RATIO OF 2 TO 1 OR ABOVE, SO THAT THE OUTLET TEMPERATURE OF THE AIR FROM THE SUPERCHARGER WILL BE HIGHER THAN NORMAL; INCREASING THE AMOUNT OF HEAT WITHDRAWN BY THE INTERCOOLER OVER THE AMOUNT OF HEAT NORMALLY WITHDRAWN BY REDUCING THE OUTLET TEMPERATURE OF THE AIR FROM THE INTERCOOLER TO AN APPROXIMATELY
Claim 2
Dependent Claim
142 words
IN A SUPERCHARGED, INTERCOOLED, TWO-STROKE CYCLE, UNIFLOW, COMPRESSION IGNITION ENGINE, HAVING A CYLINER WITH INLET PORTS AROUND THE CYLINDER WALL AND AT LEAST ONE EXHAUST VALVE FOR THE CYLINDER HEAD, A METHOD OF OPERATING SUCH AN ENGINE SO AS TO INCREASE THE TOTAL WEIGHT OF AIR IN THE COMBUSTION CHAMBER WITHOUT INCREASING THE FINAL COMBUSTION PRESSURE AND TEMPERATURE ABOVE A PREDETERMINED MAXIMUM: INCLUDING THE STEPS OF INCREASING THE COMPRESSION EFFECTED IN THE SUPERCHARGER AT FULL LOAD TO A SELECTED COMPRESSION RATIO ABOVE THOSE NORMALLY USED, FOR EXAMPLE A PRESSURE RATIO OF 2 TO 1 OR ABOVE, SO THAT THE OUTLET TEMPERATURE OF THE AIR FROM THE SUPERCHARGER WILL BE HIGHER THAN NORMAL; INCREASING THE AMOUNT OF HEAT WITHDRAWN BY THE INTERCOOLER OVER THE AMOUNT OF HEAT NORMALLY WITHDRAWN BY REDUCING THE OUTLET TEMPERATURE OF THE AIR FROM THE INTERCOOLER TO AN APPROXIMATELY
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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) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |