Patent US4733975A successfully refreshed from Google Patents.
US4733975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unitized high temperature probes
Assignee: United States Department of the Air Force
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Filing: 1986-07-03
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Granted: 1988-03-29
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Expires: 2006-07-03
Abstract
Abstract A unitized static sensor probe 20 for a gas turbine engine 10, machined from a single piece of raw material. The probe preferably has integral kiel cups 26 that form a part of the probe airfoil. The probe is manufactured by electrical discharge machining, and is shaped with an airfoil (53, 70) that minimizes disruption of the engine airstream. Integral air seal platforms 56, 58 and a mounting plate 54 are also provided.
Inventors
- 👤 Frederick J. Komanetsky
- 👤 John A. Selstad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:58
CPC Classifications
G; G01; G01K; G01K13/00; G01K13/02
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
137 words
An instrumentation probe for holding and shielding static sensors in a flow stream, the instrumentation probe comprising: (a) a probe body, aerodynamically shaped to be non-disruptive of the flow stream and manufactured from a single piece of metal; (b) multiple kiel heads protruding into the flow stream in order to shield static sensors, the kiel heads formed as an integral part of said probe body and having smooth transitioning outer surfaces connecting said kiel heads to said probe body; (c) an instrumentation cavity formed within said probe body, (d) static sensors positioned within said instrumentation cavity and said kiel heads; (e) a mounting flange forming a part of said probe body for mounting said instrumentation in the flow stream; and (f) an exit area for sensor leads to facilitate connection of said sensors to data recording means.
Claim 2
Dependent Claim
137 words
An instrumentation probe for holding and shielding static sensors in a flow stream, the instrumentation probe comprising: (a) a probe body, aerodynamically shaped to be non-disruptive of the flow stream and manufactured from a single piece of metal; (b) multiple kiel heads protruding into the flow stream in order to shield static sensors, the kiel heads formed as an integral part of said probe body and having smooth transitioning outer surfaces connecting said kiel heads to said probe body; (c) an instrumentation cavity formed within said probe body, (d) static sensors positioned within said instrumentation cavity and said kiel heads; (e) a mounting flange forming a part of said probe body for mounting said instrumentation in the flow stream; and (f) an exit area for sensor leads to facilitate connection of said sensors to data recording means.
Claim 3
Dependent Claim
15 words
The instrumentation probe of claim 1 wherein said probe comprises a high temperature nickel alloy.
Claim 4
Dependent Claim
20 words
The instrumentation probe of claim 1 wherein said instrumentation cavity comprises a complex multibranched cavity formed by electrical discharge machining.
Claim 5
Dependent Claim
12 words
The instrumentation probe of claim 1 wherein said probe body is cast.
Claim 6
Dependent Claim
18 words
The instrumentation probe of claim 1 wherein said probe body substantially corresponds in shape to an engine vane.
Claim 7
Dependent Claim
29 words
The instrumentation probe of claim 1 wherein said keil cups further comprise chamfers for the smooth transitioning of airflow between said probe body and bases of said kiel cups.
Claim 8
Dependent Claim
68 words
An instrumentation probe comprising a single piece metallic probe body which comprises an aerodynamically shaped probe airfoil and at least two kiel cups protruding into a flow stream for shielding static instrumentation and wherein the kiel cups are formed integral with said probe airfoil, wherein said probe body comprises a multibranched internal instrumentation cavity and is formed by electrical discharge machining of a single piece of raw material.
Claim 9
Dependent Claim
68 words
An instrumentation probe comprising a single piece metallic probe body which comprises an aerodynamically shaped probe airfoil and at least two kiel cups protruding into a flow stream for shielding static instrumentation and wherein the kiel cups are formed integral with said probe airfoil, wherein said probe body comprises a multibranched internal instrumentation cavity and is formed by electrical discharge machining of a single piece of raw material.
Claim 10
Dependent Claim
17 words
The instrumentation probe of claim 7 further comprising an integral flange for attachment of the engine housing.
Claim 11
Dependent Claim
17 words
The instrumentation probe of claim 7 further comprising a static pressure sensor positioned within said kiel cup.
Claim 12
Dependent Claim
17 words
The instrumentation probe of claim 7 further comprising a static temperature sensor positioned within said kiel cup.
Claim 13
Dependent Claim
21 words
The instrumentation probe of claim 7 wherein said probe body comprises a multitude of kiel cups containing a multitude of sensors.
Claim 14
Dependent Claim
15 words
The instrumentation probe of claim 7 wherein said probe comprises a high temperature nickel alloy.
References Cited (Backward Citations)
US2567512A
Cited
US3000213A
Cited
US3067577A
Cited
US3011004A
Cited
US3167960A
Cited
US3348414A
Cited
US3512414A
Cited
US3920947A
Cited
US3788143A
Cited
US3963894A
Cited
US4176433A
Cited
US4487671A
Cited
US4476369A
Cited
US4524259A
Cited
US4467134A
Cited
US4572677A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-03-29 | 1991-09-28 | 1992-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-29 | 1995-09-28 | 1996-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-29 | 1999-09-28 | 2000-03-29 | $7700.00 | Window Closed / Lapsed |