Hot-gas piston engine
Abstract
Abstract A HOT GAS PISTON ENGINE HAS WITHIN ITS CYLINDER-HOUSING (I) A WORKING SPACE CONTAINING A COMPRESSIBLE MEDIUM ADJACENT A WORKING SURFACE OF THE PISTON, (II) A BUFFER SPACE CONTAINING AN INCOMPRESSIBLE FLUID ADJACENT THE OPPOSITE SECOND SURFACE OF THE PISTON, AND (III) AN ANNULAR SPACE BETWEEN THE CYLINDER AND PISTON CONTAINING AN INCOMPRESSIBLE FLUID. SECURED BETWEEN THE CYLINDER AND PISTION IS A ROLLING DIAPHRAGM SEAL, ITS TWO SIDES RESPECTIVELY IN COMMUNICATION WITH THE WORKING SPACE AND MEDIUM THEREIN AND THE ANNULAR SPACE AND FLUID THEREIN, TO SEAL ONE SPACE FROM THE OTHER. A REGULATING DEVICE MAINTAINS A SUBSTANTIALLY CONSTANT PRESSURE DIFFERENCE ACROSS THE SEAL. THE PRODUCT OF THE FLUID PRESSURE IN THE BUFFER SPACE AND THE AREA OF THE PISTON''S SECOND SURFACE IS SUBSTANTIALLY EQUAL TO THE PRODUCT OF THE WORKING MEDIUM''S MEAN PRESSURE AND THE AREA OF THE PISTON''S WORKING SURFACE, WHEREBY FLUID FORCES ACTING ON THE PISTON FROM THE WORKING AND BUFFER SPACES ARE SUBSTANTIALLY NEUTRALIZED.
Inventors
- 👤 Roelf Jan Meijer
- 👤 Cornelis Johannes Van Henricus
- 👤 Beukering
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |