Small reusable payload delivery vehicle

• US 20070120020A1
• Filed: 11/29/2005
• Published: 05/31/2007
• Est. Priority Date: 11/29/2005
• Status: Abandoned Application

• Current Assignee: MEI Technologies
• Original Assignee: MEI Technologies
• Inventors: Engelhardt, Johnnie
• Application Number:
  US11/288,536
• Publication Number:
  US 20070120020A1
• Time in Patent Office: Days
• US Class Current: 244/173.100
• CPC Class Codes: B64G 1/242 Orbits and trajectories
• CPC Class Codes: B64G 1/401 Liquid propellant rocket engines Ion or plasma engines B64G1/413; Arcjets and other resistojets B64G1/415
• CPC Class Codes: B64G 1/404 Hybrid rocket engines
• CPC Class Codes: B64G 1/62 Systems for re-entry into the earth's atmosphere; Retarding or landing devices
• CPC Class Codes: B64G 1/623 Retarding devices, e.g. retrorockets
• CPC Class Codes: B64G 1/641 Interstage or payload connectors docking systems B64G1/646
• CPC Class Codes: B64G 1/642 Clamps, e.g. Marman clamps

Abstract

The present invention provides a small unmanned payload delivery vehicle that can deploy one or more payloads into space and then bring the payloads back to earth. The delivery vehicle can be sent into space by an expendable launch vehicle, a space shuttle, or be launched from the space station. The delivery vehicle together with the payload contained therein can be left in space for a variable period of time, and the attitude of the delivery vehicle can be adjusted from time to time to maintain the vehicle in the desired orbit. When it is time to return the payload to earth, the delivery vehicle is de-orbited and re-enters the earth'"'"'s atmosphere. The descent of the delivery vehicle is controlled by a parachute system packed within the vehicle. The delivery vehicle together with the payload contained therein can finally be retrieved based on signals emitted from a beacon.

Claims

1. An unmanned payload delivery vehicle, comprising:

a payload compartment configured to provide direct space exposure to one or more payloads contained therein;

a guidance monitor system configured to provide data related to a position of the payload delivery vehicle;

a communication system configured to receive control signals;

a propulsion system configured to adjust the position based on received control signals or the provided data; and

a parachute recovery system configured to deploy after activation of the propulsion system to de-orbit the unmanned payload delivery vehicle.

2. The unmanned payload delivery vehicle of claim 1, further comprising a separation system coupled to the unmanned payload delivery vehicle and configured to separate the unmanned payload delivery vehicle from a launch vehicle.

3. The unmanned payload delivery vehicle of claim 2, wherein the separation system comprises a pyrotechnic mechanism.

4. The unmanned payload delivery vehicle of claim 2, wherein the separation mechanism comprises a non-pyrotechnic lightband mechanism.

5. The unmanned payload delivery vehicle of claim 3, wherein the pyrotechnic mechanism comprises a Marmon clamp.

7. The unmanned payload delivery vehicle of claim 1, wherein the payload compartment is further configured to expose itself to microgravity.

8. The unmanned payload delivery vehicle of claim 1, wherein the communication system further comprises an antenna coupled to an exterior surface of the unmanned payload delivery vehicle.

9. The unmanned payload delivery vehicle of claim 1, wherein the communication system is further configured to transmit vehicle information signals.

10. The unmanned payload delivery vehicle of claim 9, wherein the vehicle information signals comprise data related to a position of the payload delivery vehicle provided by the guidance monitor system.

11. The unmanned payload delivery vehicle of claim 9, wherein the vehicle information signals comprise data related to the operation of the vehicle information signals.

12. The unmanned payload delivery vehicle of claim 1, wherein the guidance monitor system comprises a video capture device or an inertial guidance system.

13. The unmanned payload delivery vehicle of claim 1, wherein the propulsion system comprises a cold gas propulsion system.

14. The unmanned payload delivery vehicle of claim 1, wherein the propulsion system comprises a Hybrid Rocket, liquid rocket or solid rocket propulsion system.

15. The unmanned payload delivery vehicle of claim 1, further comprising a secondary propulsion system configured to substantially change an orbit of the unmanned payload delivery vehicle.

16. The unmanned payload delivery vehicle of claim 15, wherein the secondary propulsion system comprises a SHERPA propulsion system.

17. The unmanned payload delivery vehicle of claim 15, wherein the secondary propulsion system comprises any liquid, Hybrid or solid rocket.

18. The unmanned payload delivery vehicle of claim 15, further comprising a separation system configured to separate the secondary propulsion system from the rest of the unmanned payload delivery vehicle.

19. The unmanned payload delivery vehicle of claim 18, wherein the separation system comprises a pyrotechnic mechanism.

20. The unmanned payload delivery vehicle of claim 18, wherein the separation system comprises a non-pyrotechnic lightband mechanism.

21. The unmanned payload delivery vehicle of claim 20, wherein the non-pyrotechnic mechanism comprises a Marmon clamp.

22. The unmanned payload delivery vehicle of claim 1, wherein the parachute recovery system further comprises:

a streamer configured to release at a first altitude; and

a drogue configured to release at a second altitude; and

a main parachute configured to release at a third altitude.

23. The unmanned payload delivery vehicle of claim 22, further comprising an emergency parachute configured to release at a fourth altitude.

24. The unmanned payload delivery vehicle of claim 22, wherein the first altitude is determined by an altimeter device, an accelerometer device or a thermocouple device.

25. The unmanned payload delivery vehicle of claim 22, wherein the second altitude is determined by an altimeter device, an accelerometer device or a thermocouple device.

26. The unmanned payload delivery vehicle of claim 22, wherein the third altitude is determined by an altimeter device, an accelerometer device or a thermocouple device.

27. The unmanned payload delivery vehicle of claim 23, wherein the fourth altitude is determined by an altimeter device, an accelerometer device or a thermocouple device.

29. The unmanned payload delivery vehicle of claim 1, further comprising a thermal protection system configured to protect the unmanned payload delivery vehicle during re-entry to earth'"'"'s atmosphere.

30. The unmanned payload delivery vehicle of claim 29, wherein the thermal protection system comprises one or more of the following materials:

silicon tiles, ablative coatings, reinforced carbon-carbon and thermal blankets.

31. The unmanned payload delivery vehicle of claim 1, further comprising a beacon configured to identify a location of the unmanned payload delivery vehicle after re-entry to earth'"'"'s atmosphere.

6. The unmanned payload delivery vehicle of 2, wherein the launch vehicle comprises an expendable launch vehicle or a Space Shuttle vehicle.

28. (canceled)

32. An unmanned payload delivery vehicle, comprising:

a payload compartment configured to provide direct space exposure to one or more payloads contained therein;

a video system configured to provide data related to a position of the payload delivery vehicle;

a radio communication system configured to receive control signals and to transmit data related to the position of the payload delivery vehicle;

a propulsion system configured to adjust the position of the unmanned payload delivery vehicle based on the received control signals or the provided data;

a parachute recovery system configured to deploy, after a de-orbit operation, a drogue at a first altitude and a main parachute at a second altitude;

a radio beacon configured to identify a location of the unmanned payload delivery vehicle after the de-orbit operation; and

a thermal protection system configured to protect the unmanned payload delivery vehicle during re-entry to earth'"'"'s atmosphere.

33. The unmanned payload delivery vehicle of claim 32, further comprising a separation system coupled to the unmanned payload delivery vehicle and configured to separate the unmanned payload delivery vehicle from a launch vehicle.

34. The unmanned payload delivery vehicle of claim 33, wherein the separation system comprises a pyrotechnic mechanism or a non-pyrotechnic mechanism.

36. The unmanned payload delivery vehicle of claim 32, wherein the payload compartment is further configured to expose itself to microgravity.

37. The unmanned payload delivery vehicle of claim 32, wherein the video system comprises a video capture device.

38. The unmanned payload delivery vehicle of claim 32, wherein the propulsion system comprises a cold gas propulsion system.

39. The unmanned payload delivery vehicle of claim 32, wherein the first altitude is determined by an altimeter device, an accelerometer device or a thermocouple device.

40. The unmanned payload delivery vehicle of claim 32, wherein the second altitude is determined by an altimeter device, an accelerometer device or a thermocouple device.

41. The unmanned payload delivery vehicle of claim 32, wherein the thermal protection system comprises one or more of the following materials:

silicon tiles, ablative coatings, reinforced carbon-carbon and thermal blankets.

35. The unmanned payload delivery vehicle of 33, wherein the launch vehicle comprises an expendable launch vehicle.

42. An unmanned payload delivery vehicle, comprising:

a payload compartment configured to provide direct space exposure to one or more payloads contained therein;

a guidance monitor means for providing data related to a position of the payload delivery vehicle;

a communication means for receiving control signals;

a propulsion means for adjusting the position based on the received control signals or the provided data; and

a re-entry recovery means for returning the unmanned payload vehicle to earth'"'"'s surface.