Articulated diffuser and door for submerged ram air turbine power and cooling control
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02K-003/075
F02C-007/042
출원번호
US-0255902
(2014-04-17)
등록번호
US-10094336
(2018-10-09)
발명자
/ 주소
Makowski, Maciej D.
Vasquez, David A.
출원인 / 주소
Raytheon Company
인용정보
피인용 횟수 :
0인용 특허 :
7
초록▼
A turbine exhaust system including a bypass fluid duct that includes: an outer exit shroud and an inner mold line (IML) forming a channel from an inlet to an outlet of the bypass fluid duct, a moveable diffuser configured to move between a forward and aft locations, and a door configured to pivot be
A turbine exhaust system including a bypass fluid duct that includes: an outer exit shroud and an inner mold line (IML) forming a channel from an inlet to an outlet of the bypass fluid duct, a moveable diffuser configured to move between a forward and aft locations, and a door configured to pivot between minimum and maximum door angles, wherein the moveable diffuser and the door together form the outer exit shroud. The bypass fluid duct is configured to: receive an incoming fluid stream in a first direction through the inlet; bypass the incoming fluid stream around a turbine generator; and direct a flow path of the incoming fluid stream from the inlet through the outlet to join an ambient fluid flow. A movement of the door and the diffuser, from an unextended position to a fully or partially extended position varies a shape and volume of the channel.
대표청구항▼
1. A turbine exhaust system comprising: a bypass fluid duct comprising an outer exit shroud and an inner mold line (IML) forming a channel from an inlet of the bypass fluid duct to an outlet of the bypass fluid duct, the bypass fluid duct configured to: receive an incoming fluid stream in a first di
1. A turbine exhaust system comprising: a bypass fluid duct comprising an outer exit shroud and an inner mold line (IML) forming a channel from an inlet of the bypass fluid duct to an outlet of the bypass fluid duct, the bypass fluid duct configured to: receive an incoming fluid stream in a first direction through the inlet,bypass the incoming fluid stream around a turbine generator, anddirect a flow path of the incoming fluid stream from the inlet through the outlet to join an ambient fluid flow;a moveable diffuser configured to move from a forward location to an aft location; anda door configured to pivot from a minimum door angle to a maximum door angle, the door linked to the moveable diffuser;wherein the moveable diffuser and the door together form the outer exit shroud, andwherein the door and the moveable diffuser are configured to move, from an unextended position to one of a fully extended position or a partially extended position between the unextended and fully extended positions, to vary a shape and volume of the channel. 2. The turbine exhaust system of claim 1, wherein: the unextended position comprises: the door pivoted to the minimum door angle and the moveable diffuser located in the forward location;the fully extended position comprises: the door pivoted to the maximum door angle and the moveable diffuser located in the aft location; andthe partially extended position comprises: the door pivoted to a door angle between the minimum door angle and the maximum door angle, and the moveable diffuser located between the forward and aft locations. 3. The turbine exhaust system of claim 1, wherein the door and the moveable diffuser are configured to move from the unextended position to the partially extended position to enlarge a cross sectional area of the outlet, and wherein the door and the moveable diffuser are configured to move from the fully extended position to the partially extended position to reduce the cross sectional area of the outlet. 4. The turbine exhaust system of claim 1, further comprising a heat exchanger within the channel and coupled to the IML, and wherein the bypass fluid duct is further configured to direct the flow path through the heat exchanger. 5. The turbine exhaust system of claim 4, wherein, when the door and the moveable diffuser are disposed in one of the partially extended position or the fully extended position, a first portion of the incoming fluid stream is directed through the heat exchanger, and a second portion of the incoming fluid stream is directed over the heat exchanger. 6. The turbine exhaust system of claim 1, wherein the moveable diffuser is further configured to move from the forward location to the aft location by linear translation. 7. The turbine exhaust system of claim 1, further comprising a single actuator configured to drive the door and the moveable diffuser. 8. The turbine exhaust system of claim 1, wherein the door is a single pivot door. 9. The turbine exhaust system of claim 1, wherein the incoming fluid stream is pressurized by and discharged from a ram air turbine prior to the inlet. 10. An actuator for moving a door and a moveable diffuser linked to the door of a bypass fluid duct, the bypass fluid duct including an outer exit shroud and an inner mold line (IML) forming a channel from an inlet of the bypass fluid duct to an outlet of the bypass fluid duct, the moveable diffuser configured to move from a forward location to an aft location, and the door configured to pivot from a minimum door angle to a maximum door angle, the actuator comprising: a door link configured to couple to the door;a diffuser link configured to couple to the diffuser;a rotating platform pivotally coupled to the door link and the diffuser link; anda driver configured to: rotate the rotating platform; anddrive, by a single rotational motion of the rotating platform, the door and the moveable diffuser linked to the door to a plurality of positions, the positions including: an unextended position, a fully extended position, and a partially extended position between the unextended and fully extended positions. 11. The actuator of claim 10, wherein, when the door and the moveable diffuser are disposed in the unextended position, the door is pivoted to the minimum door angle and the moveable diffuser is located in the forward location. 12. The actuator of claim 10, wherein, when the door and the moveable diffuser are disposed in the fully extended position, the door is pivoted to the maximum door angle and the moveable diffuser is located in the aft location. 13. The actuator of claim 10, wherein, when the door and the moveable diffuser are disposed in the partially extended position, the door is partially extended and is pivoted to a door angle between the minimum door angle and the maximum door angle, and the moveable diffuser is located between the forward and aft locations. 14. A method of controlling a flow path of an incoming fluid stream through a channel of a bypass fluid duct, the bypass fluid duct including an outer exit shroud and an inner mold line (IML) forming the channel from an inlet of the bypass fluid duct to an outlet of the bypass fluid duct, the outer exit shroud formed by a door together with a moveable diffuser, the method comprising: receiving the incoming fluid stream in a first direction through the inlet;bypassing the incoming fluid stream around a turbine generator;directing the flow path of the incoming fluid stream from the inlet through the outlet to join an ambient fluid flow;selecting one of a plurality of positions of the door and the moveable diffuser, the plurality of positions including: an unextended position, a fully extended position, and a partially extended position between the unextended and fully extended positions;pivoting the door to a door angle corresponding to the selected position; andmoving the moveable diffuser to a location corresponding to the selected position;wherein the door is linked to the moveable diffuser and a movement of the door and the moveable diffuser, from the unextended position to one of the fully extended position or the partially extended position, varies a shape and volume of the channel and yields a change to the flow path. 15. The method of claim 14, wherein: the unextended position comprises: the door pivoted to a minimum door angle and the moveable diffuser located in a forward location;the fully extended position comprises: the door pivoted to a maximum door angle and the moveable diffuser located in an aft location; andthe partially extended position comprises: the door pivoted to a door angle between the minimum door angle and the maximum door angle, and the moveable diffuser located between the forward and aft locations. 16. The method of claim 14, wherein the movement of the door and the moveable diffuser from the unextended position to the partially extended position enlarges a cross sectional area of the outlet, and wherein a movement of the door and the moveable diffuser from the fully extended position to the partially extended position reduces the cross sectional area of the outlet. 17. The method of claim 14, further comprising directing the flow path through a heat exchanger within the channel and coupled to the IML. 18. The method of claim 17, wherein, when the door and the moveable diffuser are disposed in one of the partially extended position or the fully extended position, a first portion of the incoming fluid stream is directed through the heat exchanger, and a second portion of the incoming fluid stream is directed over the heat exchanger. 19. The method of claim 14, further comprising: driving, by a single actuator, the movement of the door and the moveable diffuser. 20. The method of claim 14, wherein the moveable diffuser is further configured to move from a forward location to an aft location by a linear translation motion. 21. The turbine exhaust system of claim 1, wherein the door is linked to the moveable diffuser by a rotating platform. 22. The method of claim 14, wherein the door is linked to the moveable diffuser by a driver that is configured to pivot the door and move the moveable diffuser.
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이 특허에 인용된 특허 (7)
Nash Dudley O. (Cincinnati OH) Clayton Thomas S. (Cincinnati OH), Actuation system for use on a gas turbine engine.
Wagenknecht Conrad D. (West Chester OH) Faust Guy K. (West Chester OH), Individual bypass injector valves for a double bypass variable cycle turbofan engine.
Ghetzler Richard ; Wojtalik ; Jr. Jerome F. ; Kruse Neils ; Stephens Kendal R. ; Schmulenson Harold, Low drag ducted Ram air turbine generator and cooling system.
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