GAS GENERATOR
First Claim
1. :
- A gas generator comprising;
an elongated cylindrical housing containing a first combustion chamber and a second combustion chamber in which a gas generating agent is arranged, a gas emission chamber emitting a gas generated in the first combustion chamber and the second combustion chamber to outside, and a gas passage chamber connecting the first combustion chamber and the second combustion chamber to each other, and having axial one and the other end portions closed;
an igniter assembled to the one end portion of the housing as facing the first combustion chamber; and
a partition member, a division member, and a separation wall member located in the housing and dividing a space in the housing into the first combustion chamber, the second combustion chamber, the gas emission chamber, and the gas passage chamber,the partition member having a partition portion axially dividing the space in the housing,the division member having a cylindrical portion radially dividing the space in the housing by being arranged on a side of the one end portion of the housing relative to the partition portion such that an axial direction of the cylindrical portion is substantially in parallel to an axial direction of the housing,the separation wall member having a separation wall portion axially dividing a space inside the cylindrical portion by being arranged in the cylindrical portion,the first combustion chamber including at least a part of the space inside the cylindrical portion on a side of the one end portion of the housing relative to the separation wall portion,the second combustion chamber including at least a part of the space inside the cylindrical portion on a side of the other end portion of the housing relative to the separation wall portion,the gas passage chamber including a space outside the cylindrical portion which faces a circumferential wall portion of the housing,the gas emission chamber including a space on the side of the other end portion of the housing relative to the partition portion,a first communication hole for communication between the first combustion chamber and the gas passage chamber being provided in a portion of the cylindrical portion for division into the first combustion chamber and the gas passage chamber,a second communication hole for communication between the gas passage chamber and the second combustion chamber being provided in a portion of the cylindrical portion for division into the gas passage chamber and the second combustion chamber,a gas discharge opening for discharge of a gas to the outside of the housing being provided in a portion of the housing defining the gas emission chamber, andat least some of the gas generated in the first combustion chamber being emitted to the outside sequentially through the gas passage chamber, the second combustion chamber, and the gas emission chamber when the gas generator is activated.
1 Assignment
0 Petitions
Accused Products
Abstract
A gas generator includes a partition portion, a cylindrical portion, and a separation wall portion which divide a space in a housing into a first combustion chamber, a second combustion chamber, a gas passage chamber, and a gas emission chamber. The first combustion chamber includes a space inside the cylindrical portion on a side of an igniter relative to the separation wall portion, and the second combustion chamber includes the space inside the cylindrical portion on a side of the partition portion relative to the separation wall portion. The gas passage chamber includes a space outside the cylindrical portion which faces a circumferential wall portion of the housing, and the gas emission chamber includes a space on a side of a gas discharge opening relative to the partition portion. At least some of a gas generated in the first combustion chamber at the time of activation of the gas generator is emitted to the outside sequentially through the gas passage chamber, the second combustion chamber, and the gas emission chamber.
7 Citations
10 Claims
-
1. :
- A gas generator comprising;
an elongated cylindrical housing containing a first combustion chamber and a second combustion chamber in which a gas generating agent is arranged, a gas emission chamber emitting a gas generated in the first combustion chamber and the second combustion chamber to outside, and a gas passage chamber connecting the first combustion chamber and the second combustion chamber to each other, and having axial one and the other end portions closed; an igniter assembled to the one end portion of the housing as facing the first combustion chamber; and a partition member, a division member, and a separation wall member located in the housing and dividing a space in the housing into the first combustion chamber, the second combustion chamber, the gas emission chamber, and the gas passage chamber, the partition member having a partition portion axially dividing the space in the housing, the division member having a cylindrical portion radially dividing the space in the housing by being arranged on a side of the one end portion of the housing relative to the partition portion such that an axial direction of the cylindrical portion is substantially in parallel to an axial direction of the housing, the separation wall member having a separation wall portion axially dividing a space inside the cylindrical portion by being arranged in the cylindrical portion, the first combustion chamber including at least a part of the space inside the cylindrical portion on a side of the one end portion of the housing relative to the separation wall portion, the second combustion chamber including at least a part of the space inside the cylindrical portion on a side of the other end portion of the housing relative to the separation wall portion, the gas passage chamber including a space outside the cylindrical portion which faces a circumferential wall portion of the housing, the gas emission chamber including a space on the side of the other end portion of the housing relative to the partition portion, a first communication hole for communication between the first combustion chamber and the gas passage chamber being provided in a portion of the cylindrical portion for division into the first combustion chamber and the gas passage chamber, a second communication hole for communication between the gas passage chamber and the second combustion chamber being provided in a portion of the cylindrical portion for division into the gas passage chamber and the second combustion chamber, a gas discharge opening for discharge of a gas to the outside of the housing being provided in a portion of the housing defining the gas emission chamber, and at least some of the gas generated in the first combustion chamber being emitted to the outside sequentially through the gas passage chamber, the second combustion chamber, and the gas emission chamber when the gas generator is activated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- A gas generator comprising;
Specification