Systems, apparatuses, and methods for moving aircraft control surfaces
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B64C-003/40
B64C-003/00
출원번호
US-0454417
(2003-06-03)
발명자
/ 주소
Huynh,Neal V.
출원인 / 주소
The Boeing Company
대리인 / 주소
Perkins Coie LLP
인용정보
피인용 횟수 :
31인용 특허 :
123
초록▼
Aircraft control surface operating systems and apparatuses, and associated methods of use. In one embodiment, an aircraft system includes an actuator operably coupled to a control surface in one-to-one correspondence. The actuator can include at least a first fluid port and a second fluid port. A f
Aircraft control surface operating systems and apparatuses, and associated methods of use. In one embodiment, an aircraft system includes an actuator operably coupled to a control surface in one-to-one correspondence. The actuator can include at least a first fluid port and a second fluid port. A first fluid circuit can be configured to provide pressurized working fluid from a fluid source to the first fluid port on the actuator to retract the actuator. A second fluid circuit can be configured to similarly provide pressurized working fluid from the fluid source to the second fluid port on the actuator to extend the actuator. The aircraft system can further include an accumulator configured to store pressurized working fluid for actuator operation in the event of a pressure drop in the fluid source.
대표청구항▼
I claim: 1. An aircraft system comprising: an actuator having a piston bore and a piston slidably disposed within the piston bore, the piston having a first piston surface with a first area and a second piston surface opposite to the first piston surface with a second area, the second area being at
I claim: 1. An aircraft system comprising: an actuator having a piston bore and a piston slidably disposed within the piston bore, the piston having a first piston surface with a first area and a second piston surface opposite to the first piston surface with a second area, the second area being at least generally equivalent to the first area, the actuator further having at least a first fluid port and a second fluid port, the first fluid port being positioned in fluid communication with the first piston surface and the second fluid port being positioned in fluid communication with the second piston surface; a fluid distribution system having at least a first fluid circuit and a second fluid circuit, wherein the first fluid circuit is configured to provide pressurized working fluid from a fluid source to the first fluid port to move the piston in a first direction, and wherein the second fluid circuit is configured to provide pressurized working fluid from the fluid source to the second fluid port to move the piston in a second direction opposite to the first direction; and a check valve positioned in the first fluid circuit, wherein the check valve is configured to open in response to receiving pressurized working fluid from the fluid source, the open check valve allowing pressurized working fluid to flow at least to the first fluid port for moving the piston in the first direction. 2. The aircraft system of claim 1 wherein the check valve is further configured to close in the absence of receiving pressurized working fluid from the fluid source, the closed check valve at least generally preventing working fluid from flowing to or from the first fluid port and thereby at least generally preventing the piston from moving in at least the first direction. 3. The aircraft system of claim 1, further comprising a pilot pressure circuit at least partially separate from the first fluid circuit, the pilot pressure circuit providing pressurized working fluid from the fluid source to the check valve to open the check valve. 4. The aircraft system of claim 1 wherein the check valve is hydraulically actuated. 5. The aircraft system of claim 1 wherein the check valve is electrically actuated. 6. The aircraft system of claim 1 further comprising a servo valve positioned between the fluid source and the check valve, wherein the servo valve has at least a first operating position and a second operating position, wherein when the servo valve is in the first operating position the servo valve allows pressurized working fluid to flow through the first fluid circuit and the check valve to the first fluid port to move the piston in the first direction, and wherein when the servo valve is in the second operating position the servo valve allows pressurized working fluid to flow through the second fluid circuit to the second fluid port to move the piston in the second direction. 7. The aircraft system of claim 1 further comprising a servo valve positioned between the fluid source and the check valve, wherein the servo valve has at least a first operating position and a second operating position, wherein when the servo valve is in the first operating position the servo valve allows pressurized working fluid to flow through the first fluid circuit and the check valve to the first fluid port to move the piston in the first direction, wherein when the servo valve is in the second operating position the servo valve allows pressurized working fluid to flow through the second fluid circuit to the second fluid port to move the piston in the second direction, and wherein the fluid distribution system further includes a pilot pressure circuit configured to flow pressurized working fluid from the fluid source to the check valve bypassing the servo valve, wherein the check valve is configured to open in response to receiving pressurized working fluid from the fluid source via the pilot pressure circuit. 8. The aircraft system of claim 1, further comprising: a fuselage; an aerodynamic surface extending outwardly from the fuselage; and a control surface movably coupled to the aerodynamic surface, wherein the actuator is operably coupled between the aerodynamic surface and the control surface, and wherein movement of the piston in at least the first direction cause the control surface to move relative to the aerodynamic surface. 9. The aircraft system of claim 1, further comprising: a fuselage; a wing extending outwardly from the fuselage; and a control surface movably coupled to the wing, wherein the actuator is operably coupled between the wing and the control surface, and wherein movement of the piston in at least the first direction causes the control surface to move relative to the wing. 10. The aircraft system of claim 1, further comprising: a fuselage; a wing extending outwardly from the fuselage; and a control surface pivotally coupled to the wing about a hinge-line, wherein the actuator is operably coupled between the wing and the control surface in one-to-one correspondence, and wherein movement of the piston in the first direction causes the control surface to move relative to the wing. 11. The aircraft system of claim 1, further comprising: a fuselage; a wing extending outwardly from the fuselage; and a control surface pivotally coupled to the wing about a hinge-line, wherein the actuator is operably coupled between the wing and the control surface in one-to-one correspondence, and wherein movement of the piston in the first direction causes the control surface to move upwardly relative to the wing. 12. An aircraft system comprising: an actuator having a piston bore and a piston slidably disposed within the piston bore, the piston having a first piston surface with a first area and a second piston surface opposite to the first piston surface with a second area, the second area being at least generally equivalent to the first area, the actuator further having at least a first fluid port positioned in flow communication with the first piston surface; a fluid distribution system having at least a first fluid circuit configured to flow pressurized working fluid from a fluid source to the first fluid port to move the piston in the first direction; and a check valve positioned in the first fluid circuit, wherein the check valve is configured to open in response to receiving pressurized working fluid from the fluid source, the open check valve allowing pressurized working fluid to flow at least to the first fluid port for moving the piston in the first direction. 13. The aircraft system of claim 12 wherein the actuator is a linear actuator. 14. The aircraft system of claim 12 wherein the check valve is further configured to close in the absence of receiving pressurized working fluid from the fluid source, the closed check valve at least generally preventing working fluid from flowing to or from the first fluid port and thereby at least generally preventing the piston from moving in at least the first direction. 15. The aircraft system of claim 12, further comprising a pilot pressure circuit at least partially separate from the first fluid circuit, the pilot pressure circuit providing pressurized working fluid from the fluid source to the check valve to open the check valve. 16. The aircraft system of claim 12 further comprising a servo valve positioned between the fluid source and the check valve, wherein the servo valve has at least a first operating position and a second operating position, wherein when the servo valve is in the first operating position the servo valve allows pressurized working fluid to flow through the first fluid circuit and the check valve to the first fluid port to move the piston in the first direction, and wherein when the servo valve is in the second operating position the servo valve allows working fluid to flow back from the first fluid port through the first fluid circuit and the check valve to the servo valve. 17. The aircraft system of claim 12, further comprising: a fuselage; an aerodynamic surface extending outwardly from the fuselage; and a control surface movably coupled to the aerodynamic surface, wherein the actuator is operably coupled between the aerodynamic surface and the control surface, and wherein movement of the piston in at least the first direction cause the control surface to move relative to the aerodynamic surface.
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이 특허에 인용된 특허 (123)
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