Patent US5199078A successfully refreshed from Google Patents.
US3604628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skewed exit plane nozzle system for optimum thrust
Assignee: RTX Corp
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Filing: 1969-08-01
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Granted: 1971-09-14
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Expires: 1989-08-01
Abstract
Abstract A nozzle arrangement formed by mounting a plurality of nozzles at the rear of a vehicle. Each nozzle being mounted for pivotal movement in a radial plane. Each nozzle is truncated at an angle other than 90* to the flow direction at the nozzle exit, whereby a skewed exit plane is formed. Control means are provided to rotate the nozzles about their mounting axes to obtain maximum performance for the ambient pressure the nozzle is operating in.
Inventors
- 👤 William D Haynie Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:30
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/97; F02K9/80; F02K9/84
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
69 words
In combination, a vehicle having an axis, nozzle means for providing thrust for said vehicle, said nozzle means including a skewed exit nozzle having a longitudinal axis and an inclined exit plane, said skewed exit nozzle being mounted for pivotal movement with said exit plane remaining perpendicular to a plane passing through said axis of said vehicle and through said longitudinal axis of said skewed exit nozzle during movement.
Claim 2
Dependent Claim
69 words
In combination, a vehicle having an axis, nozzle means for providing thrust for said vehicle, said nozzle means including a skewed exit nozzle having a longitudinal axis and an inclined exit plane, said skewed exit nozzle being mounted for pivotal movement with said exit plane remaining perpendicular to a plane passing through said axis of said vehicle and through said longitudinal axis of said skewed exit nozzle during movement.
Claim 3
Dependent Claim
85 words
In combination, a vehicle having an axis, nozzle means mounted on said vehicle for providing thrust for said vehicle, said nozzle means including a skewed exit nozzle, said skewed exit nozzle having a longitudinal axis and an exit having an inclined exit plane, said skewed exit nozzle being pivotally mounted for movement to different positions for different altitudes to vary the projected area of the exit in the direction of thrust from a minimum area at low altitude to a maximum area at high altitude.
Claim 4
Dependent Claim
85 words
In combination, a vehicle having an axis, nozzle means mounted on said vehicle for providing thrust for said vehicle, said nozzle means including a skewed exit nozzle, said skewed exit nozzle having a longitudinal axis and an exit having an inclined exit plane, said skewed exit nozzle being pivotally mounted for movement to different positions for different altitudes to vary the projected area of the exit in the direction of thrust from a minimum area at low altitude to a maximum area at high altitude.
Claim 5
Dependent Claim
31 words
A combination as set forth in claim 2 wherein control means are provided to position said nozzle means to maintain the direction of thrust parallel to the axis of said vehicle.
Claim 6
Dependent Claim
56 words
A combination as set forth in claim 1 wherein said nozzle means includes a plurality of skewed exit nozzles, said skewed exit nozzles being mounted around the axis of said vehicle control means for moving said nozzle means together maintaining said exit planes thereof at the same angle with respect to the axis of said vehicle.
Claim 7
Dependent Claim
41 words
A combination as set forth in claim 2 wherein said nozzle means includes a plurality of skewed exit nozzles, control means for maintaining the direction of thrust of each of said skewed exit nozzles parallel to the axis of said vehicle.
Claim 8
Dependent Claim
18 words
A combination as set forth in claim 3 wherein the control means senses a change in ambient pressure.
Claim 9
Dependent Claim
35 words
A combination as set forth in claim 1 wherein means are provided for moving said skewed exit nozzle to maintain its direction of thrust parallel to the axis of said vehicle during changes in altitude.
Claim 10
Dependent Claim
33 words
A combination as set forth in claim 4 wherein four skewed exit nozzles are included all spaced equally about the axis of said vehicle, the inclined exit plane of each nozzle facing outwardly.
References Cited (Backward Citations)
US3057581A
Cited
GB960106A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |