公开(公告)号：US20200172044A1

公开(公告)日：2020-06-04

申请号：US16631515

申请日：2018-07-09

Applicant: DAICEL CORPORATION

Inventor： Koji YAMAMOTO ,  Mikio YABUTA

IPC: B60R21/264 ,  B01J7/00

Abstract: 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.

公开(公告)号：US20200061566A1

公开(公告)日：2020-02-27

申请号：US16614010

申请日：2018-03-05

Applicant: DAICEL CORPORATION

Inventor： Koji YAMAMOTO ,  Mikio YABUTA

IPC: B01J7/00

Abstract: 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.

公开(公告)号：US20200216011A1

公开(公告)日：2020-07-09

申请号：US16628248

申请日：2018-07-09

Applicant: DAICEL CORPORATION

Inventor： Koji YAMAMOTO ,  Mikio YABUTA

IPC: B60R21/264 ,  F42B3/04

Abstract: 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.

公开(公告)号：US20130255528A1

公开(公告)日：2013-10-03

申请号：US13793887

申请日：2013-03-11

Applicant: DAICEL CORPORATION

Inventor： Nobuhiko OZAKI ,  Masayuki YAMAZAKI ,  Takao KURODA ,  Mikio YABUTA

IPC: C06D5/00

CPC classification number: C06D5/00 ,  B60R21/2644 ,  B60R2021/26029 ,  F42B3/04

Abstract: The present invention provides a gas generator including a metallic housing, an ignition device including an igniter assembly, and gas generating agent, the igniter assembly including an igniter main body fixed to a metallic cylindrical fixing member with a resin and a connector-connecting portion for fitting a connector, at least part of the metallic cylindrical fixing member being electro-conductive to the housing, and including an exposed portion exposed to an inner surface of the connector-connecting portion, the exposed portion of the metallic cylindrical fixing member serving as a ground terminal, when the connector is connected to the connector-connecting portion, the ground terminal being in contact with an earth terminal of the connector, a grounding lead wire of the connector being grounded to a ground circuit located outside the gas generator.

Abstract translation: 本发明提供一种气体发生器，其包括金属壳体，包括点火器组件的点火装置和气体发生剂，所述点火器组件包括用树脂固定到金属圆柱形固定构件的点火器主体和用于 所述金属圆柱形固定构件的至少一部分导电到所述壳体，并且包括暴露于所述连接器连接部分的内表面的暴露部分，所述金属圆柱形固定构件的暴露部分用作 接地端子，当连接器连接到连接器连接部分时，接地端子与连接器的接地端子接触，连接器的接地引线接地到位于气体发生器外部的接地电路。

公开(公告)号：US20190241149A1

公开(公告)日：2019-08-08

申请号：US16343507

申请日：2017-10-16

Applicant: DAICEL CORPORATION

Inventor： Tomoharu KOBAYASHI ,  Mikio YABUTA ,  Yuki FUKUI

IPC: B60R21/263 ,  B60R21/264 ,  B60R21/268

CPC classification number: B60R21/263 ,  B60R21/261 ,  B60R21/264 ,  B60R21/268

Abstract: The present invention provides a gas generator including: a housing having a top plate, a bottom plate located axially opposite to the top plate, and a circumferential wall located between the top plate and the bottom plate and provided with a gas discharge port; a partition wall provided with a single first communication hole, the partition wall being radially disposed in the housing to partition an interior of the housing into a first combustion chamber on the side of the top plate, which accommodates a first gas generating agent, and a second combustion chamber on the side of the bottom plate, which accommodates a second gas generating agent; a cylindrical guide member disposed between the first igniter attached to the bottom surface and the first communication hole, and provided with a second communication hole in a cylindrical wall thereof, the cylindrical guide member being disposed so as to enclose the first igniter, such that a second end opening thereof is connected to the first communication hole of the partition wall, the second end opening or the first communication hole being closed by a first closing member in a state where the second end opening or the first communication hole faces the first combustion chamber, the second communication hole closed by a second closing member in a state where the second communication hole faces the second combustion chamber, and a rupturing pressure of the first closing member being set lower than a rupturing pressure of the second closing member.

公开(公告)号：US20160068133A1

公开(公告)日：2016-03-10

申请号：US14784212

申请日：2014-03-20

Applicant: DAICEL CORPORATION

Inventor： Tomoharu KOBAYASHI ,  Mikio YABUTA

IPC: B60R21/264

CPC classification number: B60R21/264 ,  B60R21/274 ,  B60R2021/26029 ,  B60R2021/26076

Abstract: The present invention provides a gas generator, includinga cylindrical housing having therein an ignition device chamber and a pressurized gas chamber,a closing member in a circular shape having a fragile portion provided on one surface and closing between the chambers,a piston being disposed inside the ignition device chamber and having a base plate and a rod that extends in the axial direction from one surface of the base plate to abut against or face the closing member,the fragile portion being a groove formed with a curve extending from a start point A on Y1 to an end point E through a first intermediate point B on Y2, a second intermediate point C on Y1, and a third intermediate point D on Y2, where Y1 and Y2 are two straight lines drawn to be orthogonal to each other and to pass through a crossing point X2 on one surface of the closing member,the groove formed so that distances from the crossing point X2 to the respective points satisfy the following relationship: the distance to the start point A

Abstract translation: 本发明提供了一种气体发生器，包括一个圆柱形壳体，其中具有点火装置腔室和加压气体腔室，封闭构件为圆形，具有设置在一个表面上并在两个腔室之间关闭的脆弱部分，活塞位于内部 所述点火装置室具有基板和杆，所述基板和杆从所述基板的一个表面沿轴向延伸以抵靠或面对所述封闭构件，所述脆弱部分是形成有从起点A延伸的曲线的凹槽 在Y1上通过Y2上的第一中间点B，Y1上的第二中间点C和Y2上的第三中间点D，其中Y1和Y2是彼此正交的两条直线，并且 通过闭合部件的一个表面上的交叉点X2，形成为使得从交叉点X2到各个点的距离满足以下关系： 开始点A <到第一中间点B的距离<到第二中间点C的距离<到第三中间点D的距离<到终点E的距离，终点E为一 的点E1，E2和E3，其中E1是通过Y2上的第三中间点D之后经过Y1的点，E2是比交叉点E1更靠近第三中间点D的点，E3是 通过交叉点E1，杆不与起点A接触，但是在靠近起点A和第一中间点B之间的槽的位置处推动，从而封闭构件沿着 从起点A到终点E的凹槽。

公开(公告)号：US20210008475A1

公开(公告)日：2021-01-14

申请号：US16980630

申请日：2019-04-03

Applicant: DAICEL CORPORATION ,  FUJI FILTER MANUFACTURING CO., LTD.

Inventor： Masato HIROOKA ,  Mikio YABUTA ,  Tsutomu OHIGASHI ,  Takashi MATSUMOTO ,  Kiyohisa KIKUCHI

IPC: B01D39/10 ,  B01D39/20 ,  B01D46/24

Abstract: Provided is a cylindrical filter for a gas generator including a metal wire in a wound state, the metal wire including a plurality of recess portions provided on a first surface side and formed at intervals in a length direction thereof, the metal wire being wound with a surface including the recess portions facing an inner circumferential surface side of the cylindrical filter for a gas generator, and the recess portions of the metal wire being present on an inner side of the metal wire which extends from an inner circumferential surface toward an outer circumferential surface of the cylindrical filter.

公开(公告)号：US20200231112A1

公开(公告)日：2020-07-23

申请号：US16488352

申请日：2018-04-02

Applicant: DAICEL CORPORATION

Inventor： Koji YAMAMOTO ,  Mikio YABUTA

IPC: B60R21/264 ,  B01J7/00

Abstract: Provided is a gas generator including a housing including a top plate, a bottom plate, and a peripheral wall, the bottom plate being axially opposite the top plate, and the peripheral wall including a gas discharge port and being located between the top plate and the bottom plate. In the gas generator, an internal space of the housing is separated into a first combustion chamber and a second combustion chamber by a partition wall axially and radially partitioning the internal space of the housing, the first combustion chamber being formed to accommodate a first gas generating agent and being on the top plate side, and the second combustion chamber being formed to accommodate a second gas generating agent and being on the bottom plate side. A first igniter and a second igniter are disposed at the bottom plate, the first igniter being configured to burn the first gas generating agent, and the second igniter being configured to burn the second gas generating agent. The partition wall includes a cylindrical portion and an annular portion, the cylindrical portion being formed to surround the first igniter and include a communication hole for making the first combustion chamber and the second combustion chamber to communicate with each other, and the annular portion being formed extend radially outward from a second opening on the top plate side of the cylindrical portion. A first opening of the cylindrical portion axially opposite the second opening is in contact with the first igniter, and an outer periphery of the annular portion is in contact with the peripheral wall of the housing, and, thereby, the first combustion chamber and the second combustion chamber are separated from each other.

公开(公告)号：US20200173759A1

公开(公告)日：2020-06-04

申请号：US16617760

申请日：2018-03-16

Applicant: DAICEL CORPORATION

Inventor： Koji YAMAMOTO ,  Mikio YABUTA

IPC: F42B3/04

Abstract: A gas generator including, an igniter, a housing made of metal and including a gas discharge port and a combustion chamber for burning a solid gas generating agent, the solid gas generating agent being filled at a position where the solid gas generating agent can be burned by actuation of the igniter, and the housing being configured to accommodate the igniter and an isolating member including an isolating wall interposed, inside the housing, between the gas generating agent disposed in the combustion chamber and a bottom surface and a side surface of the combustion chamber, the isolating wall being made from a predetermined resin material and being in contact with the gas generating agent to apply a predetermined holding force to the gas generating agent.