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1. 发明申请

US20210190463A1 GAS GENERATOR 有权
公开(公告)号：US20210190463A1
公开(公告)日：2021-06-24
申请号：US17057586
申请日：2019-04-26
申请人： DAICEL CORPORATION
发明人： Koji YAMAMOTO
IPC分类号： F42B3/04
摘要： A gas generator including a housing, an igniter disposed inside the housing, a combustion chamber accommodating the igniter, a gas discharge port provided in the housing, and a filter having a cylindrical shape and disposed between the combustion chamber and the gas discharge port. The filter is positioned inside the housing such that a portion of at least one end surface of two end surfaces in an axial direction of the filter is supported by contact, an outer area positioned outward in a radial direction of the portion that is supported by contact is adjacent to a predetermined space, and a predetermined outer peripheral area of an outer peripheral surface of the filter near the at least one end surface is supported by contact. According to such a configuration, it is possible to suppress a short path of combustion gas in a gas generator equipped with a filter.

2. 发明申请

US20200216011A1 EJECTOR AND GAS GENERATOR 审中-公开
公开(公告)号：US20200216011A1
公开(公告)日：2020-07-09
申请号：US16628248
申请日：2018-07-09
申请人： DAICEL CORPORATION
发明人： Koji YAMAMOTO , Mikio YABUTA
IPC分类号： B60R21/264 , F42B3/04
摘要： An ejector for ejecting a combustion product including, an igniter including an ignition charge and an ignition portion, a pyrotechnic agent, and a cup made of metal, the cup including a bottom surface and a peripheral wall, the peripheral wall being contiguous with a peripheral edge of the bottom surface and disposed to surround the ignition portion, the cup further including an accommodating space accommodating therein the pyrotechnic agent, the bottom surface of the cup including a through hole being defined by a plurality of through-hole peripheral edges, and the adjacent through-hole peripheral edges being connected together at a predetermined connection point, and the through hole including a narrow part, in which a width of the through hole defined by each of parts of the two through-hole peripheral edges of the plurality of through-hole peripheral edges decreases gradually with an increasing distance from a center of the bottom surface toward the peripheral edge of the bottom surface, and the narrow part being located closer to the peripheral edge of the bottom surface than a non-narrow part, which is defined by each of other parts of the two through-hole peripheral edges, is located.

3. 发明申请

US20190308581A1 RETAINER AND GAS GENERATOR 审中-公开
公开(公告)号：US20190308581A1
公开(公告)日：2019-10-10
申请号：US16348036
申请日：2017-12-04
申请人： Daicel Corporation
发明人： Masato HIROOKA , Koji YAMAMOTO , Masayuki YAMAZAKI
IPC分类号： B60R21/217 , B60R21/264
摘要： The present invention provides a retainer for retaining, from outside, a housing of a gas generator including a circumferential wall provided with no flange, the retainer including a combination of a first retainer and a second retainer, the first retainer having a first annular circumferential wall, a first flange, a first inward protruding portion and a first folded portion, the second retainer having a second annular circumferential wall and a second flange, and the first retainer being fitted from the side of the top plate or the side of the bottom plate of the housing of the gas generator such that the first annular circumferential wall abuts against a part of the circumferential wall of the housing of the gas generator, the second retainer being fitted from the side of the bottom plate or the side of the top plate of the housing of the gas generator such that the second annular circumferential wall abuts against a remaining part of the circumferential wall of the housing of the gas generator, and the first flange and the second flange being abutted against each other, so as to retain the housing of the gas generator.

4. 发明申请

US20200254962A1 GAS GENERATOR 审中-公开
公开(公告)号：US20200254962A1
公开(公告)日：2020-08-13
申请号：US16650811
申请日：2018-11-06
申请人： DAICEL CORPORATION
发明人： Koji YAMAMOTO
IPC分类号： B60R21/264
摘要： Provided is a gas generator including the housing with a gas discharge port. The housing has a circular shape and includes a top plate, a bottom plate, and a peripheral wall, the housing having a ratio of an axial length L to an outer diameter D satisfying L/D≤1.1. The gas discharge port includes first opening portions having low burst pressure (P1) of the closing member and second opening portions having burst pressure (P2) higher than the burst pressure (P1). The first opening portions and second opening portions are formed on a circumference of a same circle in at least one of the peripheral wall or the top plate, and the first opening portion and the second opening portion, which are adjacent to each other in a circumference direction, are arranged such that an angle (θ1) formed by a first center line extending from a center of the same circle to a center of the first opening portion and a second center line extending from the center of the same circle to a center of the second opening portion is in a range from 15° to 65°.

5. 发明申请

US20200061566A1 GAS GENERATOR AND CONTAINER 审中-公开
公开(公告)号：US20200061566A1
公开(公告)日：2020-02-27
申请号：US16614010
申请日：2018-03-05
申请人： DAICEL CORPORATION
发明人： Koji YAMAMOTO , Mikio YABUTA
IPC分类号： B01J7/00
摘要： The gas generator includes an igniter, a container including a container body and a lid formed relative to the container body and configured to contain a transfer charge and a housing configured to contain the igniter and the container, a predetermined region in the housing adjacent to the lid of the container being filled with a gas generating agent to be burned by a combustion product of the transfer charge burned by actuation of the igniter. The lid includes a frangible section configured to be capable of being ruptured by pressure applied by a combustion product generated by combustion of the transfer charge and a strong connection section configured to be capable of maintaining a connected state with the container body even in a case that pressure is applied by the combustion product.

6. 发明申请

US20190135222A1 GAS GENERATOR 审中-公开
公开(公告)号：US20190135222A1
公开(公告)日：2019-05-09
申请号：US16093325
申请日：2017-04-21
申请人： DAICEL CORPORATION
发明人： Masato HIROOKA , Koji YAMAMOTO
IPC分类号： B60R21/264 , B60R21/261 , B60R21/272
摘要： The present invention provides a gas generator, including an outer shell housing having a top plate, a bottom plate and a circumferential wall provided with a gas discharge port, a combustion chamber accommodating a gas generating agent, a cylindrical filter and an ignition device disposed in a cup-shaped ignition device chamber housing, the bottom surface of the cup-shaped ignition device chamber housing facing the top plate and an end surface of the opening thereof abutting against the bottom plate, a length from an upper end surface to a lower end surface of the cylindrical filter being shorter than a distance from the top plate to the bottom plate of the outer shell housing, and the cylindrical filter being disposed such that the upper end surface faces the top plate and the lower end surface faces the combustion chamber, a cup-shaped cover member which has a bottom surface, a circumferential wall and an opening, further being disposed between the cup-shaped ignition device chamber housing and the cylindrical filter, an outer circumferential surface of the circumferential wall of the cover member abutting against an inner circumferential surface of the cylindrical filter, the bottom surface of the ignition device chamber housing being covered, from outside, by the bottom surface of the cover member, and a gap being formed between an inner circumferential surface of the circumferential wall of the cover member and an outer circumferential surface of the circumferential wall of the ignition device chamber housing.

7. 发明申请

US20220268558A1 GAS GENERATOR 有权
公开(公告)号：US20220268558A1
公开(公告)日：2022-08-25
申请号：US17624574
申请日：2020-01-30
申请人： Daicel Corporation
发明人： Koji YAMAMOTO
IPC分类号： F42B3/04 , B01J7/00
摘要： In a gas generator, a closing member includes: a first region exposed to a side of a second combustion chamber in a closed state, a second region in contact with a partition member from a side of the first combustion chamber in the closed state, and an engagement region that engages an engaged member fixed in a housing in the closed state; and the closing member is configured to have one or a plurality of communication holes be in a closed state by the closing member being supported at the partition member in the second region due to combustion pressure of a first gas generating agent and to have the closed state released by at least a part of the closing member, the closing member including a displacement portion that is formed continuously so as to be included at least a part of the first region, being displaced in a direction from the side of the second combustion chamber toward the side of the first combustion chamber by combustion pressure of a second gas generating agent acting on the first region.

8. 发明申请

US20220074717A1 GAS GENERATOR AND FILTER FOR GAS GENERATOR 有权
公开(公告)号：US20220074717A1
公开(公告)日：2022-03-10
申请号：US17423798
申请日：2019-10-24
申请人： DAICEL CORPORATION
发明人： Koji YAMAMOTO
IPC分类号： F42B3/04 , B01D46/24 , B01D46/00 , B01D39/20
摘要： A gas generator includes a housing, an ignition device, a combustion chamber filled with a gas generating agent, a gas discharge port configured to discharge combustion gas to an outside, and a filter portion disposed between the combustion chamber and the gas discharge port, formed of a metal material, and configured to filter the combustion gas. The filter portion includes a first filter disposed on a side of the combustion chamber and a second filter disposed on a side of the gas discharge port and facing the first filter. The gas generator is provided with a space that is provided between the first filter and the second filter, so as to include a position where the combustion gas flows and to have a predetermined thickness in a direction of flow of the combustion gas, causing a flow rate of the combustion gas flowing into the second filter to decrease due to absence of the metal material.

9. 发明申请

US20200172044A1 GAS GENERATOR 审中-公开
公开(公告)号：US20200172044A1
公开(公告)日：2020-06-04
申请号：US16631515
申请日：2018-07-09
申请人： DAICEL CORPORATION
发明人： Koji YAMAMOTO , Mikio YABUTA
IPC分类号： B60R21/264 , B01J7/00
摘要： A gas generator including an igniter, a combustion chamber, and a restriction part, the igniter including an accommodating chamber accommodating an explosive therein, an ignition portion provided in the accommodating chamber, and a separating part including a pressure receiving surface, the separating part being configured to be separable from the igniter and movable in a predetermined direction, the combustion chamber being configured to burn a gas generating agent filled outside the accommodating chamber, by the combustion of the explosive, the restriction part provided in a predetermined position in the predetermined direction from the igniter and restricting a movement of the separating part, and the separating part including a guide that directs the combustion product of the explosive by the pressure receiving surface toward the igniter, in a state where the movement of the separating part in the predetermined direction is restricted by the restriction part.

10. 发明申请

US20200148158A1 GAS GENERATOR 审中-公开
公开(公告)号：US20200148158A1
公开(公告)日：2020-05-14
申请号：US16632064
申请日：2018-07-09
申请人： DAICEL CORPORATION
发明人： Koji YAMAMOTO , Tomoharu MIYAMOTO
IPC分类号： B60R21/264 , B60R21/263 , B60R21/26
摘要： A gas generator, includes an igniter, a housing provided with a gas discharge port, and including a combustion chamber to burn a gas generating agent, the igniter being shifted from a center of a cluster of the gas generating agent, an isolating part surrounding at least a portion of the cluster of the gas generating agent, and forms, between the isolating part and a predetermined area, a gas flow space serving and a plurality of communicating parts that are provided in the isolating part and connect the combustion chamber and the gas flow space, a portion of the plurality of communicating parts allowing a combustion product generated by combustion of the gas generating agent disposed proximal to the igniter to flow into the gas flow space, and another portion of the plurality of communicating parts allowing a combustion product flowing through the gas flow space to flow out toward the gas generating agent disposed distal to the igniter.

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