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Adaptive output fluid fueled airbag inflator

  • US 5,857,699 A
  • Filed: 02/25/1997
  • Issued: 01/12/1999
  • Est. Priority Date: 02/25/1997
  • Status: Expired due to Fees
First Claim
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1. An adaptive output inflator apparatus for inflating an inflatable device, said apparatus comprising:

  • a first chamber wherein a supply of a first fuel in the form of a fluid and at least one oxidant are burned to produce combustion products including hot combustion gas and to increase the temperature and pressure within said first chamber, said first chamber adapted to open when a predetermined increase in pressure within said first chamber is realized, whereby at least a portion of the hot combustion gas is released from said first chamber,a second chamber containing a supply of pressurized stored gas, said second chamber in fluid communication with said first chamber upon the opening of said first chamber, the hot combustion gas released from said first chamber mixing with the pressurized stored gas to produce inflation gas and to increase the temperature and pressure within said second chamber, said second chamber adapted to open when a predetermined increase in pressure within said second chamber is realized after the hot combustion gas released from said first chamber mixes with the pressurized stored gas to produce the inflation gas, whereby at least a portion of the inflation gas is released from said second chamber to inflate the inflatable device,a first initiator device for initiating the combustion of the first fuel and the at least one oxidant, anda combination including,a second container containing a supply of a second fuel in the form of a fluid, said second container adapted to open to be in fluid communication with said first chamber, anda second initiator device for initiating the combustion of the second fuel and the at least one oxidant.

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