Ignition orifice in fluid fueled inflator
First Claim
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1. An inflator comprising:
- (a) a storage chamber containing a combustible fluid;
(b) a combustion chamber;
(c) an initiator capable of igniting said combustible fluid in said combustion chamber;
(d) a fluid flow path extending between said storage chamber and said combustion chamber, said fluid flow path including;
(i) a throttling zone containing the smallest cross sectional area of said fluid flow path, and(ii) a diverging zone located between said throttling zone and said combustion chamber, said diverging zone providing an increasing cross sectional area as said diverging zone extends away from said throttling zone; and
(e) an openable structure sealing said fluid flow path, said openable structure being capable of opening said fluid flow path when said initiator is activated.
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Abstract
An improved inflator wherein a flowing combustible fluid is combusted in a combustion zone defined by diverging walls is disclosed. The improved inflator provides enhanced consistency of operation thereby permitting the use of lighter components while avoiding deployments which produce excessive "bag slap".
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Citations
18 Claims
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1. An inflator comprising:
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(a) a storage chamber containing a combustible fluid; (b) a combustion chamber; (c) an initiator capable of igniting said combustible fluid in said combustion chamber; (d) a fluid flow path extending between said storage chamber and said combustion chamber, said fluid flow path including; (i) a throttling zone containing the smallest cross sectional area of said fluid flow path, and (ii) a diverging zone located between said throttling zone and said combustion chamber, said diverging zone providing an increasing cross sectional area as said diverging zone extends away from said throttling zone; and (e) an openable structure sealing said fluid flow path, said openable structure being capable of opening said fluid flow path when said initiator is activated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An inflator comprising:
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(a) a storage chamber containing a combustible fluid; (b) a fluid flow path extending from said storage chamber, said fluid flow path including; (i) a throttling zone containing the smallest cross sectional area of said fluid flow path, and (ii) a combustion zone, said combustion zone including a section of increasing cross sectional area as said combustion zone extends away from said throttling zone; (c) a nucleating structure located in said combustion zone (d) an initiator capable of igniting said combustible fluid in said combustion zone; (e) an openable structure sealing said fluid flow path, said openable structure being capable of opening said fluid flow path when said initiator is activated. - View Dependent Claims (17, 18)
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Specification