Coolant for air-bag gas generator and production method therefor
A technology of a gas generator and a manufacturing method, applied in the direction of reacting a gas medium with a gas medium, chemical instruments and methods, manufacturing tools, etc., can solve problems such as pressure loss, inability to uniform pressure loss, and density difference, and achieve reduction The effect of pressure loss
Inactive Publication Date: 2002-07-24
DAICEL CHEM IND LTD
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- Abstract
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- Application Information
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Problems solved by technology
Therefore, after all, the pressure loss in the radial direction of the upper and lower parts in the axial direction cannot be made uniform.
[0007] The coolant device manufactured by this existing method has a pressure loss difference due to the density difference generated in the axial direction
Method used
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Embodiment
[0045] Table 1 shows the results of a pressure loss measurement test performed with the above coolant at a flow rate of 250 L / min. The test is using Image 6 The apparatus shown was carried out as follows.
[0046] Table 1
[0047] serial number
[0048] serial number
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Abstract
The present invention provides a coolant for an air bag inflator in which unevenness in density in the axial direction is reduced even though the coolant is compressed in its axial direction. The coolant is a molded product made of wire rods and compressed in its axial direction. An absolute value of a difference between a radial pressure loss of the axially upper half portion of the coolant and a radial pressure loss of the axially lower half portion of the coolant is 10 mm H2O or less at a flow rate of 250 liters / minute under the atmosphere of 20 DEG C.
Description
technical field [0001] The present invention relates to a coolant for a gas generator for an airbag and a manufacturing method thereof. Background technique [0002] In order to protect crew members from the impact of collisions, airbag devices are installed on vehicles such as automobiles. In this airbag device, when a sensor senses an impact, the gas generator is activated to form a cushion (airbag) between the crew and the vehicle. [0003] The gas generator used in this airbag device is a device that detects an impact by a shock sensor and operates to release operating gas (or combustion gas) for inflating the airbag (bag body). Usually, the operating gas for inflating the airbag (bag body) is cooled and / or purified by a coolant device or the like installed in the gas generator cover, and then is discharged from the gas discharge port of the cover and introduced into the airbag. [0004] Conventionally, such a coolant device is required to purify and ...
Claims
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IPC IPC(8): B01D39/12B60R21/26B60R21/264
CPCY10S55/05B60R21/2644B01D39/12Y10S29/902Y10T29/49604Y10T442/2885B60R21/26B60R21/263B60R21/16
Inventor 福永胜昭八木聪太田充宣千叶正博
Owner DAICEL CHEM IND LTD