[특허]Method and system for forming a self-sealing volume

Method and system for forming a self-sealing volume 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B29C-049/22 B29D-022/00
출원번호	US-0796878 (2013-03-12)
등록번호	US-9597848 (2017-03-21)
발명자 / 주소	Whipple, Matthew McElhose, Jim Lee, Davis Lopez, Ruben
출원인 / 주소	ROBERTSON FUEL SYSTEMS LLC
대리인 / 주소	Smith Tempel
인용정보	피인용 횟수 : 0 인용 특허 : 39

초록 ▼

A method and system for forming a self-sealing volume includes an elastomeric composite structure. The structure includes layers of a cast polyurethane derived from a neat polyurethane monomer reaction mixture that does not substantially react at room temperature. The polyurethane monomer reaction layer includes a reaction product of an organic polyisocyanate and a reactive hydrogen-containing material reacted with a mixture of a monomeric polyol and polymeric polyols. The structure may further include one or more layers of a fabric that have been precoated with an aliphatic polyurethane, and one or more sealing layers. A fuel impermeable inner liner may be positioned in an inner region. The sealing layers may comprise at least one of partially vulcanized natural rubber (NR), polyisoprene (IR), styrene butadiene (SBR), or a blend of SBR with NR or IR. A dimensionally correct, self-sealing volume may be created by inflating the volume during its cure.

대표청구항 ▼

1. A method for making a self-sealing volume, the method comprising: generating a preform;coating the preform with a gas-impermeable elastomeric release first material that forms a gas impermeable seal around a geometry of the preform;coating the preform with a second material for forming the self-sealing volume;placing the preform having the second material into a mold;inflating the second material against the mold; andcuring the second material with the mold to form the self-sealing volume. 2. The method of claim 1, wherein the preform is constructed of a third material comprising at least one of polyurea, polyurethane, polyester, plaster and polystyrene. 3. The method of claim 1, wherein the gas-impermeable elastomeric mold release first material which forms the gas impermeable seal comprises at least one of: a silicone, an elastomeric silicone, a polyvinyl alcohol (PVA) and a polyolefin mold release agent. 4. The method of claim 1, wherein the second material for forming the self-sealing volume comprises a composite of elastomeric material and fabric. 5. The method of claim 4, wherein the composite of elastomeric material and fabric includes a self-healing layer for sealing after ballistic penetration. 6. The method of claim 1, further comprising creating one or more apertures within the preform. 7. The method of claim 1, further comprising adjusting a size of the preform. 8. The method of claim 1, further comprising providing a nut ring that is coupled to the volume. 9. The method of claim 1, further comprising creating the second material with a polyurethane reaction mixture that has a cast polyurethane derived from a neat polyurethane monomer reaction mixture that does not substantially react at room temperature, the polyurethane monomer reaction mixture comprising a reaction product of an organic polyisocyanate and a reactive hydrogen-containing material reacted with a mixture of a monomeric polyol and polymeric polyols. 10. The method of claim 9, further comprising applying a liner third material to the gas-impermeable elastomeric release first material after the preform is fully cured. 11. The method of claim 10, further comprising applying the polyurethane reaction mixture onto the liner third material. 12. The method of claim 11, further comprising applying a layer of a fabric that has been precoated onto the polyurethane reaction mixture. 13. The method of claim 12, further comprising applying a sealing layer onto the polyurethane reaction mixture. 14. The method of claim 1, further comprising inflating the second material against the mold at a pressure between about 2.0 psi to about 80.0 psi. 15. The method of claim 14, further comprising curing the second material with the mold at a temperature between about 80.0° C. to about 175.0° C. 16. The method of claim 15, further comprising curing the second material with the mold for a duration between about 20.0 minutes to about 360.0 minutes.

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