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US 8,656,838 B1Granted
Secondary chamber combustion control
AssigneeTK Holdings Inc.
InventorBrian A. Mayville
Life of this patent
Estimating the term…
Abstract
A gas generating system includes a first chamber activatable to provide a first quantity of gas and a second chamber activatable independently of the first chamber to provide a second quantity of gas. A single opening enables fluid communication between the second chamber and the first chamber. A barrier seals the opening to prevent fluid communication between the first and second chambers prior to activation of the second chamber.
Claims13
A gas generating system comprising:
- a housing;
- a first chamber within the housing and structured to be activatable to provide a first quantity of gas;
- a shell positioned within the first chamber and including a flat base and a wall extending from a periphery of the base to define a second chamber structured to be activatable independently of the first chamber to provide a second quantity of gas;
- a plurality of openings formed along the base and enabling fluid communication between the second chamber and the first chamber;
- and
- a barrier sealing the openings to prevent fluid communication between the first and second chambers prior to activation of the second chamber.
3 more elements
A gas generating system comprising:
- a first chamber activatable to provide a first quantity of gas;
- a second chamber activatable independently of the first chamber to provide a second quantity of gas;
- a quantity of gas generant material positioned in the second chamber;
- a plurality of openings formed along a flat portion of a surface defining a portion of the second chamber, the openings enabling fluid communication between the second chamber and the first chamber;
- and
- a barrier sealing the openings to prevent fluid communication between the first and second chambers prior to activation of the second chamber,
- wherein the plurality of openings are sized so as to enable a pressure within a range having a lower limit of about 20 MPa to be maintained in the second chamber after failure of the barrier for at least a predetermined time period after a start of combustion of the gas generant material.
4 more elements
Dependencies are inferred from the claim text.