Fueling pressure regulator
Abstract
Abstract A PISTON-LIKE VALVE MEMBER IS SLIDABLY MOUNTED ON A SUPPORT CENTRALLY POSITIONED WITHIN A TUBULAR HOUSING AT THE END OF A FUEL HOSE TO CONTROL FUEL FLOW THROUGH AN ANNULAR PATH AROUND THE VALVE MEMBER. A FIXED SHROUD SPACED FROM THE HOUSING SLIDABLY RECEIVES THE VALVE MEMBER, AND SENSING HOLES WITHIN THE SHROUD PERMIT FLUID PRESSURE IN THE FLOW PATH TO ENTER THE SHROUD AND REACT AGAINST A DOWNSTREAM FACING WORKING SURFACE ON THE VALVE MEMBER. THE SENSING HOLES ARE PLACED ALONG A RESTRICTED THROAT IN THE FLOW PATH SO THAT A HIGH FLOW RATE SETTINGS THE VALVE MEMBER IS SUBJECTED TO PRESSURES WHICH ARE SUBSTANTIALLY LESS THAN THE ACTUAL PRESSURE DOWNSTREAM OF THE THROAT, WITH THE RESULT THAT DOWNSTREAM PRESSURE INCREASES AT HIGH FLOW RATES. TWO DYNAMIC SEALS IN THE STRUCTURE ARE ADJACENT AN AMBIENT PRESSURE CAVITY WITHIN THE VALVE MEMBER SO THAT ANY LEAKAGE IS TO THAT CAVITY AND HENCE DOES NOT EFFECT THE ACCURACY OF NO FLOW OR LOW FLOW RATES.
Inventors
- 👤 Albert William Brown
Bibliographic Details
Claims Analysis
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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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |