Total air temperature probe having improved deicing heater error performance
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01K-013/02
G01K-013/00
출원번호
US-0230907
(2005-09-20)
등록번호
US-7357572
(2008-04-15)
발명자
/ 주소
Benning,Kevin J.
Steffen,Fred A.
Willcox,Charles R.
출원인 / 주소
Rosemount Aerospace Inc.
대리인 / 주소
Veldhuis Kroeze,John D.
인용정보
피인용 횟수 :
11인용 특허 :
18
초록▼
A total air temperature probe for measuring total air temperature includes a head having an airflow inlet, a main airflow exit, and a flow separation bend positioned between the airflow inlet and the main airflow exit. A plurality of bleed holes are in the flow separation bend. A bleed port air exi
A total air temperature probe for measuring total air temperature includes a head having an airflow inlet, a main airflow exit, and a flow separation bend positioned between the airflow inlet and the main airflow exit. A plurality of bleed holes are in the flow separation bend. A bleed port air exit is coupled to the plurality of bleed holes. The head geometry is configured to provide enhanced deicing heater error (DHE) performance.
대표청구항▼
What is claimed is: 1. A total air temperature probe for measuring total air temperature, the probe comprising: a head having an airflow inlet, a main airflow exit, and a flow separation bend positioned between the airflow inlet and the main airflow exit, the flow separation bend having a plurality
What is claimed is: 1. A total air temperature probe for measuring total air temperature, the probe comprising: a head having an airflow inlet, a main airflow exit, and a flow separation bend positioned between the airflow inlet and the main airflow exit, the flow separation bend having a plurality of bleed holes; and a bleed port air exit coupled to the plurality of bleed holes, the bleed port air exit having a perimeter shape with a curved front end, the curved front end being a closest portion of the perimeter shape relative to the airflow inlet. 2. The total air temperature probe of claim 1, wherein the bleed port air exit is formed in the head and extends laterally between first and second sidewalls of the head in a first direction which is substantially perpendicular to a direction between the airflow inlet and the main airflow exit. 3. The total air temperature probe of claim 2, and further comprising: a strut coupled to and supporting the head; a sensor flow passage formed in the strut; and a total air temperature sensor positioned in the sensor flow passage. 4. The total air temperature probe of claim 2, wherein the head has a first width in a direction parallel to the first direction at the airflow inlet, and a maximum width in a direction parallel to the first direction rearward of the airflow inlet toward the main airflow exit, the maximum width being greater than the first width. 5. The total air temperature probe of claim 2, wherein the head has a non-planar bottom exterior surface extending between the airflow inlet and the main airflow exit. 6. The total air temperature probe of claim 1, wherein the perimeter of the bleed port air exit has a substantially oval shape. 7. The total air temperature probe of claim 6, wherein the substantially oval shape is a substantially egg shape. 8. The total air temperature probe of claim 6, wherein the substantially oval shape is a substantially elliptical shape. 9. The total air temperature probe of claim 6, wherein the substantially oval shape is a substantially circular shape. 10. A total air temperature probe for measuring total air temperature, the probe comprising: a head having an airflow inlet, a main airflow exit, and a flow separation bend positioned between the airflow inlet and the main airflow exit, the flow separation bend having a plurality of bleed holes, and further comprising a bleed port air exit formed in the head and coupled to the plurality of bleed holes, the bleed port air exit extending laterally between first and second sidewalls of the head in a first direction, wherein the bleed port air exit has a perimeter shape with a curved front end, the curved front end being a closest portion of the perimeter shape relative to the airflow inlet, and wherein the head has a first width in a direction parallel to the first direction at the airflow inlet, and a maximum width in a direction parallel to the first direction rearward of the airflow inlet toward the main airflow exit, the maximum width being greater than the first width; a strut coupled to and supporting the head; a sensor flow passage formed in the strut; and a total air temperature sensor positioned in the sensor flow passage. 11. The total air temperature probe of claim 10, wherein the perimeter of the bleed port air exit has a substantially oval shape. 12. The total air temperature probe of claim 11, wherein the substantially oval shape is a substantially egg shape. 13. The total air temperature probe of claim 11, wherein the substantially oval shape is a substantially elliptical shape. 14. The total air temperature probe of claim 11, wherein the substantially oval shape is a substantially circular shape.
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이 특허에 인용된 특허 (18)
Johnston James S. (West Sussex GB2) Pownall David W. (West Sussex GB2) White Melvyn S. (West Sussex GB2), Air data measurement apparatus.
Hagen Floyd W. (Eden Prairie MN) Hohenstein Gregg A. (Bloomington MN) Severson John A. (Eagan MN) Trongard Pennelle J. (Savage MN), Multifunctional air data sensing probes.
Hagen Floyd W. (Eden Prairie MN) Hohenstein Gregg A. (Bloomington MN) Severson John A. (Eagan MN) Trongard Pennelle J. (Savage MN), Multifunctional air data sensing probes.
Brookes Neil Roger (Topsfield MA) Ray Martin George (Marblehead MA) Cohen Joseph David (Danvers MA) McCarey Thomas Joseph (Boxford MA), Transient air temperature sensing system.
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