US3143401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supersonic fuel injector
Assignee: General Electric Co
•
Filing: 1961-08-17
•
Granted: 1964-08-04
•
Expires: 1981-08-17
Abstract
No abstract record available.
Inventors
- 👤 Lambrecht Jurgen Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:25
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/28; Y; Y10; Y10S; Y10S261/00; Y10S261/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A SUPERSONIC FUEL INJECTOR FOR USE IN A SUPERSONIC AIRSTREAM COMPRISING, AN UPSTREAM DIRECTED HOLLOW SPIKE, A TUBE SURROUNDING SAID SPIKE IN CONCENTRIC SPACED RELATION AND SAID TUBE CONVERGING FROM ITS FORWARD END TO FORM A THROAT AND THEN DIVERGING TO ITS DOWNSTREAM END, SAID SPIKE AND TUBE FORMING AN EXTERNAL COMPRESSION SUPERSONIC ANNULAR INLET WITH NO NORMAL SHOCK WITHIN SAID TUBE, A FUEL SUPPLY LINE CONNECTED TO THE INTERIOR OF SAID SPIKE TO SUPPLY FUEL UNDER PRESSURE, SAID SPIKE CONVERGING IN THE CONVERGING PORTION OF THE TUBE AND TERMINATING IN A DOWNSTREAM DIRECTED OPENING SUBSTANTIALLY AT THE TUBE THROAT, MEANS INCLUDING SAID OPENING SUPPLYING FUEL TO THE DIVERGING PORTION OF SAID TUBE.
Claim 2
Dependent Claim
113 words
A SUPERSONIC FUEL INJECTOR FOR USE IN A SUPERSONIC AIRSTREAM COMPRISING, AN UPSTREAM DIRECTED HOLLOW SPIKE, A TUBE SURROUNDING SAID SPIKE IN CONCENTRIC SPACED RELATION AND SAID TUBE CONVERGING FROM ITS FORWARD END TO FORM A THROAT AND THEN DIVERGING TO ITS DOWNSTREAM END, SAID SPIKE AND TUBE FORMING AN EXTERNAL COMPRESSION SUPERSONIC ANNULAR INLET WITH NO NORMAL SHOCK WITHIN SAID TUBE, A FUEL SUPPLY LINE CONNECTED TO THE INTERIOR OF SAID SPIKE TO SUPPLY FUEL UNDER PRESSURE, SAID SPIKE CONVERGING IN THE CONVERGING PORTION OF THE TUBE AND TERMINATING IN A DOWNSTREAM DIRECTED OPENING SUBSTANTIALLY AT THE TUBE THROAT, MEANS INCLUDING SAID OPENING SUPPLYING FUEL TO THE DIVERGING PORTION OF SAID TUBE.
References Cited (Backward Citations)
US2679137A
Cited
US2692480A
Cited
US2729059A
Cited
US2840990A
Cited
US2867977A
Cited
US3042344A
Cited
US3075353A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |