Systems and methods for casting hybrid rocket motor fuel grains
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B21D-053/00
F02K-009/14
F02K-009/72
F02K-009/36
F02K-009/18
B29C-033/38
B29C-033/52
B29C-039/00
B29C-039/26
B64G-001/40
F02K-009/32
B29C-067/00
B29L-031/30
출원번호
US-0564463
(2012-08-01)
등록번호
US-9429104
(2016-08-30)
발명자
/ 주소
Fuller, Jerome Keith
출원인 / 주소
The Aerospace Corporation
대리인 / 주소
Sutherland Asbill & Brennan
인용정보
피인용 횟수 :
0인용 특허 :
35
초록▼
Embodiments of the invention relate to systems and methods for casting hybrid rocket motor fuel grains. In one embodiment, a method for casting a rocket motor fuel grain can be provided. The method can include providing a positive image of a port made from at least one material. The method can furth
Embodiments of the invention relate to systems and methods for casting hybrid rocket motor fuel grains. In one embodiment, a method for casting a rocket motor fuel grain can be provided. The method can include providing a positive image of a port made from at least one material. The method can further include disposing at least one fuel material around at least a portion of the positive image of the port. Further, the method can include removing the at least one material, wherein a negative image of the port is formed in the at least one fuel material.
대표청구항▼
1. A method comprising: casting a rocket motor fuel grain, the casting method comprising: providing a rocket motor fuel grain mold cast;generating a positive image of a port made from at least one material in at least a portion of the rocket motor fuel grain mold cast, wherein a rapid prototyping de
1. A method comprising: casting a rocket motor fuel grain, the casting method comprising: providing a rocket motor fuel grain mold cast;generating a positive image of a port made from at least one material in at least a portion of the rocket motor fuel grain mold cast, wherein a rapid prototyping device is used to generate at least a portion of the positive image; anddisposing within the rocket motor fuel grain cast at least one fuel material around at least a portion of the positive image of the port. 2. The method of claim 1, wherein the port comprises at least one non-longitudinal feature. 3. The method of claim 1, wherein the port comprises a thin walled structure incorporating some or all of a helical shape, a concentric disk shape, a series of anteriorially linked disk shapes, or a three-dimensional geometric shape with at least one non-longitudinal feature. 4. The method of claim 1, wherein the at least one material comprises a soluble polymer. 5. The method of claim 1, wherein the at least one material comprises an oxidizer. 6. The method of claim 1, wherein the at least one fuel material comprises a composite solid rocket motor fuel. 7. The method of claim 1, further comprising: removing the at least one material making up the positive image of the port, wherein removing the at least one material comprises changing a state of the at least one material. 8. The method of claim 1, wherein the rocket motor fuel grain mold cast is a shaped cast. 9. The method of claim 1, further comprising curing the at least one fuel material to form a negative image of the port in the cured fuel material. 10. A method comprising: casting a rocket motor fuel grain, the casting method comprising: providing a rocket motor fuel grain mold cast;providing, in at least a portion of the rocket motor fuel grain mold cast, a positive image of a helical-shaped port made from at least one material comprising an oxidizer, wherein a rapid prototyping device is used to provide at least a portion of the positive image; anddisposing within the rocket motor fuel grain cast at least one fuel material around at least a portion of the positive image of the helical-shaped port. 11. The method of claim 10, wherein the port further comprises at least one non-longitudinal feature. 12. The method of claim 10, wherein the at least one material further comprises a soluble polymer. 13. The method of claim 10, wherein the at least one fuel material comprises a composite solid rocket motor fuel. 14. The method of claim 10, further comprising: removing the at least one material making up the positive image of the port from within the at least one fuel material, wherein removing the at least one material comprises changing a state of the at least one material. 15. The method of claim 10, wherein the rocket motor fuel grain mold cast is a shaped cast. 16. A method comprising: casting a rocket motor fuel grain, the casting method comprising: providing a rocket motor fuel grain cast;generating, in at least a portion of the rocket motor fuel grain mold cast, a positive image of a port made from at least one material comprising a soluble polymer, wherein a rapid prototyping device is used to provide at least a portion of the positive image;disposing, in the rocket motor fuel grain cast, at least one fuel material around at least a portion of the positive image of the port; andremoving the at least one material by changing a state of the at least one material; andcuring the at least one fuel material to form a negative image of the port in the cured fuel material. 17. The method of claim 16, wherein the port comprises a thin walled structure incorporating some or all of a helical shape, a concentric disk shape, a series of anteriorially linked disk shapes, or a three-dimensional geometric shape with at least one non-longitudinal feature. 18. The method of claim 16, wherein the at least one fuel material comprises a composite solid rocket motor fuel. 19. The method of claim 16, wherein the rocket motor fuel grain mold cast is a shaped cast. 20. The method of claim 16, wherein the at least one fuel material comprises an oxidizer.
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이 특허에 인용된 특허 (35)
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