US3208216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power system
Assignee: Sundstrand Corp
•
Filing: 1961-05-03
•
Granted: 1965-09-28
•
Expires: 1981-05-03
Abstract
No abstract record available.
Inventors
- 👤 David H Silvern
- 👤 John R May
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:36
CPC Classifications
F; F02; F02C; F02C1/00; F02C1/04; B; B64; B64G; B64G1/00; B64G1/22; B64G1/42
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
193 words
THE COMBINATION OF A FIRST POWER UNIT CONSISTING OF A FIRST MULTI-STAGE EXPANSION ENGINE, A PRIMARY FLUID DRIVING SAID FIRST ENGINE, A SECONDARY FLUID AND MEANS FOR TANSFERRING HEAT FROM SAID SECONDARY FLUID TO SAID PRIMARY FLUID PRIOR TO THE ENTRY OF SAID PRIMARY FLUID INTO THE STAGES OF SAID FIRST MULTISTAGE ENGINE; A SECOND POWER UNIT CONSISTING OF A SECOND MULTI-STAGE EXPANSION ENGINE, A PRIMARY FLUID DRIVING SAID SECOND ENGINE, AND MEANS FOR TRANSFERRING HEAT FROM ONLY SAID SECONDARY FLUIKD TO SAID PRIMARY FLUID PRIMARY TO THE ENTRY OF SAID PRIMARY FLUID INOT THE STAGES OF SAID SECOND MULTI-STAGE ENGINE; AT LEAST ONE HEAT SOURCE; MEANS FOR TRANSFERRING HEAT FROM SAID AT LEAST ONE HEAT SOURCE TO SAID SECONDARY FLUID; FLUID LINES FOR CONDUCTING SAID SECONDARY FLUID FROM SAID HEAT TRANSFER MEANS IN SAID FIRST AND SECOND POWER UNITS THRUGH SAID AT LEAST ONE HEAT SOURCE AND BACK TO SAID MEANS; AND VALVE MEANS CONNECTED IN SAID FLUID LINES FOR CONTROLING THE PROPORTIONAL AMOUNTS OF SAID SECONDARY FLUID FLOWING FROM SAID AT LEAST ONE HEAT SOURCE TO SAID HEAT TRANSFER MEANS IN SAID UITS WHEREBY THE ENGINE SPEEDS ARE MAINTAINED ESSENTIALLY EQUAL.
Claim 2
Dependent Claim
193 words
THE COMBINATION OF A FIRST POWER UNIT CONSISTING OF A FIRST MULTI-STAGE EXPANSION ENGINE, A PRIMARY FLUID DRIVING SAID FIRST ENGINE, A SECONDARY FLUID AND MEANS FOR TANSFERRING HEAT FROM SAID SECONDARY FLUID TO SAID PRIMARY FLUID PRIOR TO THE ENTRY OF SAID PRIMARY FLUID INTO THE STAGES OF SAID FIRST MULTISTAGE ENGINE; A SECOND POWER UNIT CONSISTING OF A SECOND MULTI-STAGE EXPANSION ENGINE, A PRIMARY FLUID DRIVING SAID SECOND ENGINE, AND MEANS FOR TRANSFERRING HEAT FROM ONLY SAID SECONDARY FLUIKD TO SAID PRIMARY FLUID PRIMARY TO THE ENTRY OF SAID PRIMARY FLUID INOT THE STAGES OF SAID SECOND MULTI-STAGE ENGINE; AT LEAST ONE HEAT SOURCE; MEANS FOR TRANSFERRING HEAT FROM SAID AT LEAST ONE HEAT SOURCE TO SAID SECONDARY FLUID; FLUID LINES FOR CONDUCTING SAID SECONDARY FLUID FROM SAID HEAT TRANSFER MEANS IN SAID FIRST AND SECOND POWER UNITS THRUGH SAID AT LEAST ONE HEAT SOURCE AND BACK TO SAID MEANS; AND VALVE MEANS CONNECTED IN SAID FLUID LINES FOR CONTROLING THE PROPORTIONAL AMOUNTS OF SAID SECONDARY FLUID FLOWING FROM SAID AT LEAST ONE HEAT SOURCE TO SAID HEAT TRANSFER MEANS IN SAID UITS WHEREBY THE ENGINE SPEEDS ARE MAINTAINED ESSENTIALLY EQUAL.
Claim 3
Dependent Claim
68 words
THE COMBINATION OF AN ENGINE SYSTEM COMPRISING A MULTI-STAGE EXPANSION ENGINE, A PRIMARY FLUID DRIVING SAID ENGINE, A FIRST SET OF HEAT EXCHANGERS HAVING A FLOW AND AHIGH TEMPERATURE PORTION AND AFIRST SERIES OF FLUID LINE CONECTING SAID AFOREMENTIONED ELEMENTS TO SERIALLY CONDUCT SAID PRIMARY FLUID ALTERNATELY THROUGH THE LOW TEMPERATURE PORTION OF THE INDIVIDUAL HEAT EXCHANGERS OF SAID SET AND THE STAGES OF SAID ENGINE; A SECONDARY
Claim 4
Dependent Claim
68 words
THE COMBINATION OF AN ENGINE SYSTEM COMPRISING A MULTI-STAGE EXPANSION ENGINE, A PRIMARY FLUID DRIVING SAID ENGINE, A FIRST SET OF HEAT EXCHANGERS HAVING A FLOW AND AHIGH TEMPERATURE PORTION AND AFIRST SERIES OF FLUID LINE CONECTING SAID AFOREMENTIONED ELEMENTS TO SERIALLY CONDUCT SAID PRIMARY FLUID ALTERNATELY THROUGH THE LOW TEMPERATURE PORTION OF THE INDIVIDUAL HEAT EXCHANGERS OF SAID SET AND THE STAGES OF SAID ENGINE; A SECONDARY
References Cited (Backward Citations)
CA505044A
Cited
FR360632A
Cited
US2268270A
Cited
US2218604A
Cited
US2267768A
Cited
US2584232A
Cited
US2919551A
Cited
US2917903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |