GAS GENERATOR
First Claim
1. A gas generator comprising, in a cylindrical housing, a combustion chamber which is filled with gas generating agents as a gas source, and a gas discharge port for discharging a gas generated by combustion of the gas generating agents,the combustion chamber including,an ignition device which includes an igniter and closes a first end opening of the cylindrical housing, a partition wall which closes a second end opening on the side axially opposite to the first end opening, and a perforated cylindrical body which is disposed in an inner space thereof;
- the igniter having an igniter main body, which includes an ignition portion, and an igniter collar which surrounds and holds the igniter main body;
the perforated cylindrical body being disposed such that a first end thereof surrounds the ignition portion of the igniter, and a second end thereof on the axially opposite side being located on the side of the partition wall;
an inside space of the perforated cylindrical body being a first chamber which is filled with part of the gas generating agents, and an outside space of the perforated cylindrical body being a second chamber which is filled with the remaining gas generating agents; and
the gas discharge port being a through hole which is formed in a portion of the partition wall facing the second chamber.
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Accused Products
Abstract
The present invention provides a gas generator including, in a cylindrical housing, a combustion chamber which is filled with gas generating agents as a gas source, and a gas discharge port for discharging a gas generated by combustion of the gas generating agents,
- the combustion chamber including,
- an ignition device which includes an igniter and closes a first end opening of the cylindrical housing, a partition wall which closes a second end opening on the side axially opposite to the first end opening, and a perforated cylindrical body which is disposed in an inner space thereof;
- the igniter having an igniter main body which includes an ignition portion, and an igniter collar which surrounds and holds the igniter main body;
- the perforated cylindrical body being disposed such that a first end thereof surrounds the ignition portion of the igniter, and a second end thereof on the axially opposite side being located on the side of the partition wall;
- an inside space of the perforated cylindrical body being a first chamber which is filled with part of the gas generating agents, and an outside space of the perforated cylindrical body being a second chamber which is filled with the remaining gas generating agents; and
- the gas discharge port being a through hole which is formed in a portion of the partition wall facing the second chamber.
- the combustion chamber including,
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Citations
15 Claims
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1. A gas generator comprising, in a cylindrical housing, a combustion chamber which is filled with gas generating agents as a gas source, and a gas discharge port for discharging a gas generated by combustion of the gas generating agents,
the combustion chamber including, an ignition device which includes an igniter and closes a first end opening of the cylindrical housing, a partition wall which closes a second end opening on the side axially opposite to the first end opening, and a perforated cylindrical body which is disposed in an inner space thereof; -
the igniter having an igniter main body, which includes an ignition portion, and an igniter collar which surrounds and holds the igniter main body; the perforated cylindrical body being disposed such that a first end thereof surrounds the ignition portion of the igniter, and a second end thereof on the axially opposite side being located on the side of the partition wall; an inside space of the perforated cylindrical body being a first chamber which is filled with part of the gas generating agents, and an outside space of the perforated cylindrical body being a second chamber which is filled with the remaining gas generating agents; and the gas discharge port being a through hole which is formed in a portion of the partition wall facing the second chamber. - View Dependent Claims (6, 7)
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2. A gas generator comprising, in a cylindrical housing, a combustion chamber which is filled with gas generating agents as a gas source, and a gas discharge port for discharging a gas generated by combustion of the gas generating agents,
the combustion chamber including, an ignition device which includes an igniter and closes a first end opening of the cylindrical housing, a partition wall which closes a second end opening on the side axially opposite to the first end opening, and a perforated cylindrical body which is disposed in an inner space thereof; -
the igniter having an igniter main body, which includes an ignition portion, and an igniter collar which surrounds and holds the igniter main body; the perforated cylindrical body being disposed such that a first end thereof surrounds the ignition portion of the igniter, and a second end thereof on the axially opposite side being located on the side of the partition wall; an inside space of the perforated cylindrical body being a first chamber which is filled with part of the gas generating agents, and an outside space of the perforated cylindrical body being a second chamber which is filled with the remaining gas generating agents; and the gas discharge port being a through hole which is formed in a portion of the cylindrical housing facing the second chamber on the side of the partition wall. - View Dependent Claims (8, 9)
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3. A gas generator comprising, in a cylindrical housing, a combustion chamber which is filled with gas generating agents as a gas source, and a gas discharge port for discharging a gas generated by combustion of the gas generating agents,
the combustion chamber including, an ignition device which includes an igniter and closes a first end opening of the cylindrical housing, a partition wall which closes a second end opening on the side axially opposite to the first end opening, an inner space which is obtained therein, and a perforated cylindrical body which is disposed in the inner space; -
the igniter having an igniter main body, which includes an ignition portion, and an igniter collar which surrounds and holds the igniter main body; the perforated cylindrical body being disposed such that a first end thereof surrounds the ignition portion of the igniter, and a second end thereof on the axially opposite side being located on the side of the partition wall; an inside space of the perforated cylindrical body being a first chamber which is filled with part of the gas generating agents, and an outside space of the perforated cylindrical body being a second chamber which is filled with the remaining gas generating agents; a diffuser portion being arranged at the second end opening of the cylindrical housing, which is closed by the partition wall; the gas discharge port including a first gas discharge port which is a through hole formed in a portion of the partition wall facing the second chamber and a second gas discharge port which is formed in the diffuser portion; and a combustion gas generated in a combustion chamber being discharged from the first gas discharge port into the diffuser portion and then discharged from the second gas discharge port. - View Dependent Claims (10, 11)
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4. A gas generator comprising a combustion chamber which has a first gas discharge port and is filled with gas generating agents, a diffuser chamber which has a second gas discharge port, and a pressurized gas chamber in the order of description from a first end opening of a cylindrical housing toward a second end opening on the side axially opposite thereto;
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a closing member closing between the diffuser chamber and the pressurized gas chamber; a breaking device being disposed between the combustion chamber and the diffuser chamber, having a base plate portion and a breaking portion, and moving toward the second end opening at the time of actuation to break the closing member; the combustion chamber including, an ignition device which includes an igniter and closes a first end opening of the cylindrical housing, the base plate of the breaking device, which closes a side axially opposite to the first end opening, an inner space which is obtained therein, and a perforated cylindrical body which is disposed in the inner space; the igniter having an igniter main body which includes an ignition portion, and an igniter collar which surrounds and holds the igniter main body; the perforated cylindrical body being disposed such that a first end thereof surrounds the ignition portion of the igniter, and a second end thereof on the axially opposite side being located on the side of the partition wall; an inside space of the perforated cylindrical body being a first chamber which is filled with part of the gas generating agents, and an outside space of the perforated cylindrical body being a second chamber which is filled with the remaining gas generating agents; the first gas discharge port being opened to transfer a combustion gas from the combustion chamber to the diffuser chamber, and the first gas discharge port being a through hole which is formed in a portion of the base plate facing the second chamber; and the second gas discharge port being opened to discharge the combustion gas and a pressurized gas to the outside of the cylindrical housing, and the second gas discharge port being a through hole which is formed in a portion of a circumferential wall of the cylindrical housing forming the diffuser chamber. - View Dependent Claims (12, 13)
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5. A gas generator comprising, in a cylindrical housing, a combustion chamber which is filled with gas generating agents as a gas source, and a gas discharge port for discharging a gas generated by combustion of the gas generating agents,
the combustion chamber including, an ignition device which includes an igniter and closes a first end opening of the cylindrical housing, a partition wall which closes a second end opening on the side axially opposite to the first end opening, and a perforated cylindrical body which is disposed in an inner space thereof; -
the igniter having an igniter main body which includes an ignition portion, and an igniter collar which surrounds and holds the igniter main body; the perforated cylindrical body being disposed such that a first end thereof surrounds the ignition portion of the igniter, and a second end thereof on the axially opposite side being located on the side of the partition wall; an inside space of the perforated cylindrical body being a first chamber which is filled with part of the gas generating agents, and an outside space of the perforated cylindrical body being a second chamber which is filled with the remaining gas generating agents; and the gas discharge port including a through hole which is formed in a portion of the partition wall facing the second chamber, and a through hole which is formed in a portion of the cylindrical housing facing the second chamber on the side of the partition wall. - View Dependent Claims (14, 15)
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Specification