The emergency landing gear actuator for aircraft utilizes a pair of airbags for rapid emergency deployment of landing gear when the conventional hydraulic actuator fails. In the retracted position, the at least one wheel of the landing gear is stored in a first cavity formed in the lower portion of
The emergency landing gear actuator for aircraft utilizes a pair of airbags for rapid emergency deployment of landing gear when the conventional hydraulic actuator fails. In the retracted position, the at least one wheel of the landing gear is stored in a first cavity formed in the lower portion of the wing. The shock strut and the side strut are stored in an adjacent second cavity formed in the lower portion of the wing. First and second airbags are respectively mounted in the first and second cavities. The first airbag and the second airbag are each selectively inflatable for emergency deployment of the at least one wheel, the shock strut and the side strut. When the hydraulic actuator fails to deploy the landing gear, the first and second airbags are inflated, forcing the shock strut to rotate and position the at least one wheel in its deployed position.
대표청구항▼
1. An emergency landing gear actuator for aircraft, comprising: a hydraulic piston adapted for mounting within a wing of an aircraft;a shock strut having opposed first and second ends, the first end thereof being pivotally secured to the wing of the aircraft;at least one wheel rotatably secured to t
1. An emergency landing gear actuator for aircraft, comprising: a hydraulic piston adapted for mounting within a wing of an aircraft;a shock strut having opposed first and second ends, the first end thereof being pivotally secured to the wing of the aircraft;at least one wheel rotatably secured to the second end of the shock strut;a side strut having opposed first and second ends, the first end thereof being mechanically linked to the hydraulic piston, the second end thereof being pivotally secured to a central portion of the shock strut;a first airbag adapted for mounting in a first cavity formed in a lower surface of the wing of the aircraft; anda second airbag adapted for mounting in a second cavity formed in the lower surface of the wing of the aircraft,whereby selective actuation of the hydraulic piston selectively rotates and extends the side strut, the rotation and extension of the side strut causing the shock strut to rotate about the first end thereof, positioning the at least one wheel in a deployed landing position, the wheel being adapted for removable reception in the first cavity and the side strut and the shock strut being adapted for removable reception in the second cavity when in a retracted position, the first airbag and the second airbag each being selectively inflatable for emergency deployment of the at least one wheel, the shock strut and the side strut. 2. The emergency landing gear actuator for aircraft as recited in claim 1, further comprising a source of pressurized air in fluid communication with the first and second airbags. 3. The emergency landing gear actuator for aircraft as recited in claim 2, wherein the source of pressurized air comprises an air tank mounted in the wing of the aircraft. 4. The emergency landing gear actuator for aircraft as recited in claim 3, further comprising a conduit having a first end and a second branched end, the first end being connected to the air tank, a first branch of the second branched end being connected to the first airbag, and a second branch of the second branched end being connected to the second airbag. 5. The emergency landing gear actuator for aircraft as recited in claim 4, further comprising: a first check valve between the first branch and the first airbag; anda second check valve between the second branch and the second airbag. 6. An emergency landing gear system for aircraft, comprising: a wing of an aircraft, first and second adjacent cavities being formed in a lower portion thereof;a hydraulic piston mounted within the wing of the aircraft;a shock strut having opposed first and second ends, the first end thereof being pivotally secured to the wing of the aircraft;at least one wheel rotatably secured to the second end of the shock strut;a side strut having opposed first and second ends, the first end thereof being mechanically linked to the hydraulic piston, the second end thereof being pivotally secured to a central portion of the shock strut;a first airbag mounted in the first cavity of the wing of the aircraft; anda second airbag mounted in the second cavity of the wing of the aircraft,whereby selective actuation of the hydraulic piston selectively rotates and extends the side strut, the rotation and extension of the side strut causing the shock strut to rotate about the first end thereof, positioning the at least one wheel in a deployed landing position, the wheel being removably received in the first cavity and the side strut and the shock strut being removably received in the second cavity when in a retracted position, the first airbag and the second airbag each being selectively inflatable for emergency deployment of the at least one wheel, the shock strut and the side strut. 7. The emergency landing gear system for aircraft as recited in claim 6, further comprising a source of pressurized air in fluid communication with the first and second airbags. 8. The emergency landing gear system for aircraft as recited in claim 7, wherein the source of pressurized air comprises an air tank mounted in the wing of the aircraft. 9. The emergency landing gear system for aircraft as recited in claim 8, further comprising a conduit having a first end and a second branched end, the first end being connected to the air tank, a first branch of the second branched end being connected to the first airbag, and a second branch of the second branched end being connected to the second airbag. 10. The emergency landing gear system for aircraft as recited in claim 9, further comprising: a first check valve connected between the first branch and the first airbag; anda second check valve connected between the second branch and the second airbag.
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