Method and system for multi-stage inflation of a curtain airbag for ejection mitigation

The present invention can include an automobile having a multi-stage inflation system. The multi-stage inflation system can include an engine control unit, a multi-stage inflation unit, a curtain airbag, a curtain airbag pressure indicator, and/or a rollover side impact detection unit. The rollover side impact detection unit can detect when a side impact or a rollover occurs to the automobile. When the rollover or the side impact is detected, the engine control unit can instruct the multi-stage inflation unit to deploy and inflate the curtain airbag in multiple stages. The multi-stage inflation unit can include a pyrotechnic inflation unit with multiple compartments. At each of the stages, a different one of the multiple compartments can be activated to substantially inflate the curtain airbag. The multi-stage inflation unit can also optionally include a cold gas inflation unit to supplement the pyrotechnic inflation unit.

Variable lateral thickness airbag, system comprising same, and method of deploying same

An airbag assembly has an airbag, a gas emitting inflator, and an airbag thickness limiting structure. The airbag thickness limiting structure limits a first body region engaging portion to having a lateral thickness within a first lateral thickness range when the gas emitting inflator delivers a first amount of inflation gas into the interior space of the airbag and allows the first body region engaging portion of the airbag to have a lateral thickness within a second lateral thickness range when the gas emitting inflator delivers a second amount of inflation gas greater than the first amount into the interior space of the airbag. A second body region engaging portion has a substantially fixed maximum attainable lateral thickness. Maximum attainable lateral thickness of the first body region engaging portion of the airbag can be dependent upon whether or not inflation of the airbag is implemented using pre-crash sensing technology.

Inflator and airbag device

An inflator includes: an inflator case configured from a bottomed cylindrical upper case and lower case, with the inflator case having an upper combustion chamber and a lower combustion chamber in which gas generants are accommodated, the upper combustion chamber and the lower combustion chamber being partitioned by a partition wall, and with the inflator case having a peripheral wall in which upper gas discharge holes and lower gas discharge holes are formed; a first inner cylinder member in which a transfer charge for combusting the gas generant inside the lower combustion chamber is accommodated; a second inner cylinder member whose upper end portion penetrates the partition wall and is positioned in a lower portion of the upper combustion chamber, with a transfer charge for combusting the gas generant inside the upper combustion chamber being accommodated inside the second inner cylinder member; a first igniter and a second igniter.

Airbag and airbag module for a motor vehicle having such an airbag

The invention relates to an airbag (14) for unfolding between a vehicle part (10) and a vehicle occupant (18), comprising an impact wall (20) which, in the installed and unfolded state of the airbag (14), faces a vehicle occupant (18) and a circumferential wall (22) which is connected to the impact wall (20) and, in the installed and unfolded state of the airbag (14), extends between the impact wall (20) and the vehicle part (10), wherein the circumferential wall (22) is made with multiple layers, at least in some sections, and forms at least one annular tube (23) which delimits an annular inflatable first airbag volume (V1), and wherein a radially inner layer (26) of the circumferential wall (22), together with the impact wall (20), delimits an inflatable second airbag volume (V2) that is separate from the first airbag volume (V1). The invention further relates to an airbag module (12) having such an airbag (14).

Method and device for controlling the filling of an airbag for a vehicle and an airbag system

A method for controlling the filling of an airbag for a vehicle includes closing a valve of a gas generator for the airbag, this valve being connected to an interface to a gas sack of the airbag, after a main volume of a gas has flowed out of the gas generator, through the valve into the gas sack in a first gas mass flow, and opening the valve to direct a residual volume of gas out of the gas generator, through the valve into the gas sack in a second gas mass flow, the second gas mass flow being smaller than the first gas mass flow.

Airbag deployment method

An airbag deployment method for a vehicle including a dual-stage inflator, the method including sensing a vehicle collision; sensing whether a passenger seated in a seat of the vehicle is a child or an adult; and deploying an airbag using the inflator depending on the sensed type of passenger. The inflator includes a low-pressure first chamber and a high-pressure second chamber. If the sensed passenger is a child, the low-pressure first chamber is initially activated. If the sensed passenger is an adult, the high-pressure second chamber is initially activated.

GAS GENERATOR

The present invention provides a gas generator, including 1. A gas generator , comprising:an outer shell housing having a top plate, a bottom plate and a circumferential wall provided with a gas discharge port;in the outer shell housing, 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 combustion chamber being a space inside the outer shell housing excluding the cup-shaped ignition device chamber housing and the cylindrical filter;the cup-shaped ignition device chamber housing having a bottom surface, a circumferential wall and an opening and being disposed such that the bottom surface thereof faces the top plate of the outer shell housing and an end surface of the opening thereof abuts against the bottom plate of the outer shell housing;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 along a central axis of the outer shell housing such that the upper end surface faces the top plate and the lower end surface faces the combustion chamber;a cup-shaped cover member being further disposed between the cup-shaped ignition device chamber housing and the cylindrical filter;the cup-shaped cover member having a bottom surface, a circumferential wall and an opening; andthe ignition device chamber housing, the cylindrical filter, and the cup-shaped cover member being disposed such thatan outer circumferential surface of the circumferential wall of the cover member abuts against an inner circumferential surface of the cylindrical filter,the bottom surface of the ignition device chamber housing is covered, from outside, by the bottom surface of the cover member, anda gap is formed between an inner circumferential surface of the circumferential wall of the cover member and an outer ...

DUAL STAGE INFLATOR

A dual stage inflator a dual stage inflator for an inflatable vehicle safety device includes a housing defining a first chamber containing a first gas generant material. An ignitor cup is disposed in the first chamber and defines an interior containing an ignitor material. A first ignitor device extends into the interior of the ignitor cup. A combustion cup and a lid are disposed in the first chamber and cooperate to define a second chamber containing a second gas generant material. The combustion cup includes a cup sidewall extending between a first axial end and a second axial end. The first axial end is an open end. The lid is normally in a closed position relative to the combustion cup to close the open end of the combustion cup and is moveable away from the combustion cup in response to an increase of pressure within the combustion cup for venting combustion gas out of the combustion cup. A second ignitor device extends into the combustion cup and closes the second axial end of the combustion cup. The combustion cup includes a first axially extending portion adjacent the first axial end having a first outer diameter and a second axially extending portion adjacent the second axial end having a second outer diameter greater than the first outer diameter. The lid includes a lid sidewall extending in an axial direction and radially overlapping at least a portion of the combustion cup including the first outer diameter. 1. A dual stage inflator for an inflatable vehicle safety device , the dual stage inflator comprising:a housing defining a first chamber containing a first gas generant material;an ignitor cup disposed in the first chamber and defining an interior containing an ignitor material;a first ignitor device extending into the interior of the ignitor cup;a combustion cup and a lid disposed in the first chamber and cooperating to define a second chamber containing a second gas generant material, the combustion cup including a cup sidewall extending between a ...

OVERIGNITING PROTECTION DEVICE, SECOND IGNITION STAGE, GAS GENERATOR AND AIRBAG MODULE

The invention relates to an overigniting protection device () for a multi-stage gas generator (), comprising a combustion chamber limiting element () for limiting a combustion chamber () of a second ignition stage () of the gas generator () as well as an overigniting protection element () which is arranged on a side of the combustion chamber limiting element () remote from the combustion chamber (), wherein the overigniting protection element () covers the side of the combustion chamber limiting element () remote from the combustion chamber (), wherein the overigniting protection element () is tightly connected to the combustion chamber limiting element () via a mounting portion () and wherein the overigniting protection element () is substantially plate-shaped or completely covers the side of the combustion chamber limiting element () remote from the combustion chamber (). Furthermore, the invention relates to a second ignition stage () of a multi-stage gas generator, a gas generator () and an airbag module comprising a gas generator (). 1401034301410383430383430383442383430. An overigniting protection device () for a multi-stage gas generator () , comprising a combustion chamber limiting element () for limiting a combustion chamber () of a second ignition stage () of the gas generator () as well as an overigniting protection element () which is arranged on a side of the combustion chamber limiting element () remote from the combustion chamber () , wherein the overigniting protection element () covers the side of the combustion chamber limiting element () remote from the combustion chamber () , wherein the overigniting protection element () is tightly connected to the combustion chamber limiting element () via a mounting portion () and wherein the overigniting protection element () is substantially plate-shaped or completely covers the side of the combustion chamber limiting element () remote from the combustion chamber ().24034. The overigniting protection device ...

Passenger airbag inflator and system for vehicle

A passenger airbag inflator for a vehicle includes: a housing having a first gunpowder therein, including a vent hole, and communicating with an airbag cushion; a first chamber located in a first side inner space of the housing, having a first booster and a first igniter, and configured to be triggered forwardly when the first igniter is ignited; and a second chamber located in a second side inner space of the housing, having a second booster and a second gunpowder, including a second igniter, and configured to be triggered forwardly when the second igniter is ignited.

Protection system for persons and goods comprising an inflatable structure with long duration of action

A protection system comprises at least one inflatable safety structure, each associated with a gas generator that can be activated by an external command, wherein the external command comprises an electrical signal from an automated system that is responsible for the critical safety functions of a vehicle, corresponding to predictive information about an impact. The gas generator is configured to generate a gas over a time period such that the total inflation time of the inflatable structure is greater than 50 milliseconds. The inflatable structure may be waterproof.

Airbag device for vehicle

The airbag device has an airbag and a cover with at least one tearing thread in the cover in the region in which the airbag comes out. There are pull-open devices (11) in the region in which the airbag (8) comes out of the cover (5) to grip at least one tearing thread (7) and coupled to the airbag device so that when it is released, before or during the inflation of the airbag, the cover is weakened or opened by breaking at least one of the tearing threads.

Protection system for persons and goods comprising an inflatable structure with long duration of action

The invention relates to a protection system comprising at least one inflatable safety structure (1) each associated with a gas generator which can be activated by an external command, characterised in that said external command comprises an electrical signal from an automated system which is responsible for the critical safety functions of a vehicle (50), corresponding to predictive information about an impact, in that the gas generator is configured to generate a gas over a period such that the total inflation time of the inflatable structure (1) is greater than 50 milliseconds, and in that the inflatable structure is waterproof.

Airbag apparatus for vehicle

본 발명에 따른 차량용 에어백 장치는 팽창가스를 제공하도록 마련된 제1인플레이터와 제2인플레이터; 제1인플레이터와 연결되고, 제1인플레이터가 작동할 시, 승객 방향으로 전개되는 메인쿠션; 제2인플레이터와 연결되고, 제2인플레이터가 작동할 시, 메인쿠션의 일측면을 따라 전개되며 전방부에서 꺾여 메인쿠션의 전면을 따라 전개됨으로써 메인쿠션의 일측면과 전면에서 메인쿠션과 중첩적으로 전개되는 서브쿠션; 및 차량의 충돌상황이 감지된 경우 제1인플레이터를 작동시킴으로써 메인쿠션을 전개시키고, 기설정된 각도 이상의 경사충돌로 감지된 경우 제1인플레이터와 제2인플레이터를 모두 작동시킴으로써 메인쿠션과 서브쿠션을 모두 전개시키는 제어부;를 포함할 수 있다. An airbag device for a vehicle according to the present invention includes: a first inflator and a second inflator provided to provide inflation gas; a main cushion connected to the first inflator and deployed toward the passenger when the first inflator operates; It is connected to the second inflator, and when the second inflator is operating, it is deployed along one side of the main cushion and is bent at the front part and deployed along the front of the main cushion so that it overlaps with the main cushion on one side and the front of the main cushion. deployed sub cushion; And when a collision situation of a vehicle is detected, the main cushion is deployed by operating the first inflator, and when an inclined collision of more than a preset angle is detected, both the main cushion and the sub cushion are deployed by operating both the first inflator and the second inflator. It may include a control unit that makes

Inflator for vehicle protection apparatus

A pressurized container (10) includes a vessel (12) defining a chamber (38) therein. A housing (16) that is connected to the vessel (12) defines an outlet (18) that is fluidly separated from the chamber by a closure member (14). A moveable member (22) may be seated within and form a seal with the housing (16) and abut the closure member (14). Activation of an initiator (20) propels the moveable member through the closure member, thereby fluidly connecting the chamber (38) and the outlet (18).

Airbag apparatus for vehicle

一种用于车辆的安全气囊装置，其可以包括：第一充气装置和第二充气装置，其分别构造成提供充气气体；主气囊垫，所述主气囊垫与所述第一充气装置连接，并且在所述第一充气装置工作时向乘客方向展开；副气囊垫，所述副气囊垫与所述第二充气装置连接，并且在所述第二充气装置工作时，沿着所述主气囊垫的第一侧表面展开，以在所述主气囊垫的第一侧表面和前表面处与所述主气囊垫重叠展开；以及控制器，所述控制器构造成当检测到车辆碰撞时，所述第一充气装置工作以展开所述主气囊垫，以及当检测到车辆碰撞为至少是预定角度的斜向碰撞时，所述第一充气装置和所述第二充气装置工作以展开所述主气囊垫和所述副气囊垫。

2-chamber inflator

Air bag assembly for vehicles

본 발명은 차량 충돌시 에어백하우징의 가스주입구를 통해 인플레이터의 팽창가스가 에어백쿠션에 주입되도록 구성된 차량용 에어백 어셈블리이다. 특히 본 발명은 에어백하우징에 주입구조절유닛이 장착되되, 에어백하우징은 팽창가스량이 조절되도록 가스주입구 상에서 이동되는 슬라이딩도어와, 에어백쿠션과 슬라이딩도어 사이를 연결하는 연결부재를 포함하여 구성된 차량용 에어백 어셈블리를 제공한다. 인플레이터, 에어백하우징, 슬라이딩도어, 테더

GAS GENERATOR FOR AIRBAG SAFETY PILLOW

1. Пиротехнический газогенератор для автомобильной надувной подушки безопасности, содержащий пиротехнический заряд, отличающийся тем, что дополнительно содержит:- пиротехнический инициатор, расположенный в камере сгорания и выполненный с возможностью приведения его в действие первой детекторной системой, предназначенной для обнаружения состояния неизбежного столкновения, и/или второй детекторной системой, предназначенной для обнаружения состояния совершившегося столкновения;- проход для истечения газов между камерой сгорания и надувной подушкой, и- по меньшей мере, один клапан, выполненный с возможностью перемещения из первого положения, в котором он определяет первое проходное сечение истечения, во второе положение, в котором он определяет второе проходное сечение истечения, большее, чем первое проходное сечение истечения, или наоборот, причем этот клапан выполнен таким образом, чтобы определять большее проходное сечение истечения, если пиротехнический инициатор приводится в действие первой детекторной системой.2. Пиротехнический газогенератор по п.1, отличающийся тем, что проход для истечения газов образован, по меньшей мере, двумя отверстиями, образованными в камере сгорания, а клапан выполнен с возможностью закрытия, по меньшей мере, одного из этих отверстий.3. Пиротехнический газогенератор по п.1 или 2, отличающийся тем, что клапан выполнен с возможностью перемещения под действием газа, высвобожденного пиротехническим зарядом, воспламененным пиротехническим инициатором привода.4. Пиротехнический газогенератор по п.1 или 2, отличающийся тем, что клапан выполнен в виде ползуна, который имеет возм� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2011 140 787 A (51) МПК B60R 21/26 (2011.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2011140787/11, 26.03.2010 (71) Заявитель(и): СМЕ (FR) Приоритет(ы): (30) Конвенционный приоритет: 27.03.2009 FR 0901487 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 27.10. ...

Gas generator

Patent JPS4858533A

Gas generator in which the diffusion chamber is fitted with an internal conduit

본 발명은 3 개의 인접한 챔버들, 즉, 적어도 하나의 배출 개구(100)와 소통되는 확산 챔버(D)의 양측에 있는 제 1 및 제 2 연소 챔버(C 1 ,C 2 )를 형성하도록 2 개의 격벽(12,13)들에 의해 분할된 엔벨로프를 포함하는 개스 발생기에 관한 것으로서, 상기 격벽(3,4)들은 적어도 하나의 길이 방향 노즐(120,130)에 의해서 횡단되고, 상기 연소 챔버(C 1 ,C 2 )들중 오직 제 1 챔버(C 1 )에만 그 안에 포함된 화염 충전물(3)을 위한 점화 장치(2)가 설치되고, 상기 확산 챔버(D)는 도관(8)을 포함하고, 도관의 반대편 단부들은 상기 노즐(120,130)과 소통하며, 도관 자체의 벽은 노즐(80)을 형성하는 적어도 하나의 개구를 가지고, 그 개구는 폐쇄되지 않고 그 내부 공간을 확산 챔버의 내부 공간과 연결시키며, 다른 노즐(120, 130)들은 파열 디스크에 의해 폐쇄되고, 상기 도관(8)의 노즐(80)을 형성하는 상기 개구의 영역은 상기 디스크(6,7)들이 파열되었을 때 노즐(80)이 상기 제 2 연소 챔버(C 2 ) 안에 포함된 충전물(4)의 연소를 제어하도록 치수가 정해진다. The present invention provides two combustion chambers (C 1 , C 2 ) on either side of three adjacent chambers, namely a diffusion chamber (D) in communication with at least one discharge opening (100) Wherein the partition walls (3,4) are traversed by at least one longitudinal nozzle (120,130) and the combustion chamber (C 1 , C 2) only the first chamber (C 1) only and the igniter (2) installed for the flame filling (3) contained therein, said diffusion chamber (D) of the can and includes a conduit 8 and conduit And the walls of the conduit itself have at least one opening forming a nozzle 80 whose opening is not closed but which connects the internal space with the internal space of the diffusion chamber The other nozzles 120 and 130 are closed by the rupture disc and the nozzle 80 of the conduit 8 is closed, Is dimensioned to control the combustion of the filler (4) contained in the second combustion chamber (C 2 ) when the disks (6, 7) are ruptured.

Structure for installation a air-bag module on a steering wheel

스티어링휠 내의 공간활용을 극대화함과 동시에 부품들 간의 간섭을 최소화하여 에어백모듈의 작동성능을 개선시킬 수 있는 스티어링휠의 에어백모듈 설치구조가 개시되어 있다. 이를 위한 본 발명은 림과 코아를 포함하는 본체와, 림 내에 장착되며 일단은 커넥터와 연결되고 타단은 가스가 방출되는 노즐이 구비된 인플레이터와, 인플레이터로부터 발생된 가스를 제공받아 팽창되는 에어백과, 에어백을 수납하며 코아의 상면에 고정되는 쿠션 하우징 및 노즐 주위를 밀폐하며 인플레이터와 하우징을 연결하는 연통관을 포함하여 구성되는 것을 특징으로 한다. Disclosed is an airbag module installation structure of a steering wheel that can maximize space utilization in a steering wheel and at the same time minimize interference between components to improve the operation performance of the airbag module. To this end, the present invention provides a main body including a rim and a core, an inflator having a nozzle mounted on the rim and connected to a connector at one end thereof, and a gas discharged from the other end, an airbag inflated by receiving gas generated from the inflator, It is characterized in that it comprises a communication housing for connecting the inflator and the housing sealing the airbag and the cushion housing which is fixed to the upper surface of the core and the nozzle surrounding the nozzle.

Gas generating system

A gas generating system ( 10 ) including a baffle system ( 42 ) for modifying the temperature and pressure of a gas generated by the system, and to remove particulates from the gas. The gas generating system includes a first combustion chamber ( 34 a ), a second combustion chamber ( 36 a ), and the baffle system ( 42 ) adjacent both the first and second combustion chambers so as to enable fluid communication with the combustion chambers upon activation of the gas generating system. In another aspect of the present invention, a baffle system ( 42 ) is provided including a first end plate ( 44 ) having an opening ( 44 b ) formed therein for enabling fluid communication with a first fluid source ( 34 a ), a second end plate ( 46 ) having an opening ( 46 b ) formed therein for enabling fluid communication with a second fluid source ( 36 a ), and a sequence of baffle elements ( 48 ) extending between the first and second end plates. A first baffle element ( 48 a ) of the sequence of baffle elements defines a chamber ( 60 ) for receiving therein a fluid through the openings in the first and second end plates. Each additional baffle element in the sequence of baffle elements is spaced outwardly apart from a preceding baffle element in the sequence of baffle elements. In another aspect of the invention, a method is provided for producing, in a gas generating system, a gas having a pressure within a predetermined pressure range and a temperature within a predetermined temperature range. In another aspect of the present invention, a vehicle occupant protection system is provided.

Fume gas generator

본 발명은 모터-차량 안전용 발연 가스 발생기에 관한 것이다. The present invention relates to a fume gas generator for motor vehicle safety. 발생기(100)는 몸체부(1)를 상류 격실(4)과 하류 격실(5)로 분할하는 가로벽 (3)과 측벽(2)을 포함하는 일체로 형성된 원통형 몸체부(1)의 형태로 구성된다. 상기 격실(4, 5)은 각각 발연 장약(6, 7)과 점화 시스템(15, 16)을 포함한다. 뚜껑(30)과 캔(31)은 외부 측벽(2)예 고정되며 확산 챔버를 구성한다. 안전 유닛 (26)은 측벽(2) 부분을 파지하며, 발생기(100)에 의해 수용되는 전기적 신호에 의존하여, 에어백을 부분적으로 팽창시키거나 또는 팽창률의 조절 가능성과 함께 상기 에어벡을 완전히 팽창시킨다. The generator 100 is in the form of an integrally formed cylindrical body portion 1 comprising a horizontal wall 3 and a side wall 2 which divide the body portion 1 into an upstream compartment 4 and a downstream compartment 5. It is composed. The compartments 4, 5 each comprise a smoke charge 6, 7 and an ignition system 15, 16. The lid 30 and the can 31 are fixed to the outer side wall 2 and constitute a diffusion chamber. The safety unit 26 grips the side wall 2 part and, depending on the electrical signal received by the generator 100, partially inflates the airbag or fully inflates the airvec with the possibility of adjusting the inflation rate. .

High temperature gas generator for safety of vehicle

(57)【要約】 【課題】 膨張速度の調整が可能で、エアバッグを完全 に膨張させるために最大容量のガスを解放或いは所定量 ガスを解放してエアバッグを部分的に膨張させ得る製造 安価且つ容易であるガス発生器を提供する。 【解決手段】 チューブの母量の長さＬが外径Ｄを越 え；チューブは一部品から成る円筒状の管であり；チュ ーブは２つの隔壁部３、４によって上流部分７と中間部 分８と下流部分10とに分けられ、隔壁部３、４の各々は 最初閉じられているノズル５、６を有し、上流部分７及 び下流部分10の各々は火工装薬を包含し；チューブ内に は点火システム13、14が挿入され、チューブ両端部はリ ング11、12によって閉じられ；安全バルブ26は上流部分 ７から進入するガスと下流部分10とを隔離するように、 中間部分８及び下流部分10の間に設けた隔壁部４に当接 している。

Electropyrotechnic igniter with two ignition heads and use in motor vehicle safety

본 발명의 일렉트로파이로테크닉 점화기(1)는 두 개의 점화 헤드들(2, 3)을 포함하며, 상기 두 개의 점화 헤드들(2, 3)은 각각 저항 가열 소자(20)와 파이로테크닉 점화 콤포지션(16)을 수납하는 본체를 구비한다. 또한, 이들 두 개의 점화 헤드들은 코드화된 정보를 대화 및 트리거링하는 수단(49)과, 전기 에너지를 저장하는 수단(46)을 구비한다. 상기 점화기는 전자 제어 유니트에 전기적으로 접속되는 외부 접속 수단(54 내지 56)을 포함한다. The electropyrotechnic igniter 1 of the present invention comprises two ignition heads 2, 3, each of which has a resistive heating element 20 and a pyrotechnic ignition. The main body which accommodates the composition 16 is provided. These two ignition heads also have means 49 for communicating and triggering coded information and means 46 for storing electrical energy. The igniter comprises external connection means 54 to 56 which are electrically connected to the electronic control unit. 본 발명의 점화기는 특히, 에어백과 연계된 가스 발생기의 점화 디바이스를 구성하도록 자동차의 안전 장치에 사용될 수 있다. The igniter of the invention can in particular be used in a safety device of a motor vehicle to configure the ignition device of a gas generator associated with an air bag.

Gas generator

본 발명은 제1 가스 배출구군(16a)과 제2 가스 배출구군(16b)이 모두 시일 부재(17)로 폐색되고, 상기 제2 가스 배출구군(16b)은 상기 제1 가스 배출구군(16a)으로부터 축 방향으로 떨어져 있는 것인 가스 배출구군(16a, 16b)을 적어도 2개 둘레면에 갖는 관형 하우징(12), 각각 관형 하우징(12)의 한쪽 단부 및 다른쪽 단부를 폐색하고 있는, 점화 장치(25)를 갖는 제1 폐색 부재(30), 및 제2 폐색 부재(14)를 포함하고, 제1 및 제2 가스 배출구군(16a, 16b)을 개방시키기 위한 개구 압력 P 1 및 P 2 가 P 1 < P 2 의 관계를 만족시키고, 각각 제1 가스 배출구군(16a)은 관형 하우징(12)의 축 방향 중간부 또는 그 근방에 위치하고 있고, 제2 가스 배출구군(16b)은 제1 가스 배출구군(16a)과 제2 폐색 부재(14) 사이의 중간부 또는 그 근방에 위치하고 있는 것인 가스 발생기(10)을 제공한다.

Gas generator for use in gas bags

Gas generator

一种气体发生器是具有：金属制的壳体(3)，形成于上述壳体(3)内、装填有气体发生剂的燃烧室(5)，配置在上述燃烧室(5)的周围的过滤器部件(6)，安装在上述壳体(3)上的点火机构(7)，和形成在上述壳体(3)上的多个气体排放孔(8)的气体发生器，形成上述壳体(3)的起始壳(1)和关闭壳(2)的任一个或两者，具有半球形状或半椭球形状的端板部(14，10)和直径D的筒部(13，9)，上述直径D与上述各端板部(14，10)的底部间距离H的比H/D的范围为0.4～1.3。

Gas generator for air bag and air bag device

본 발명은 에어백 시스템으로, 상세하게는 2개 이상의 연소실을 가진 가스발생기, 즉 가스배출구를 가진 하우징내에 충격에 의해 작동하는 점화수단과, 그 점화수단에 의해 착화·연소되어 에어백을 팽창시키기 위한 연소가스를 발생하는 가스발생수단을 포함하여 구성되는 에어백용 가스발생기로서, 그 하우징내에는 가스발생수단을 수용하는 2개의 연소실이 하우징의 반경방향으로 인접하여 동심원으로 설치되고, 또한 그 연소실끼리 상호 연통가능하게 하는 연통구멍을 설치한 것을 특징으로 하는 에어백용 가스발생기이다. 그 밖에 2개의 점화기를 포함하는 가스발생기, 상이한 가스발생수단을 2개 포함하는 가스발생기, 리드와이어를 가진 점화기를 포함하는 가스발생기, 내부 원통형부재중에 연소실과 점화수단을 가진 가스발생기, 자동발화재료를 포함하는 가스발생기로서 유효하게 승차자를 구속할 수 있다. 에어백장치, 가스발생기, 점화수단, 연소실, 전화약, 배출구, 유동통로, 리드와이어, 모듈케이스 The present invention relates to an airbag system, specifically a gas generator having two or more combustion chambers, that is, ignition means operated by impact in a housing having a gas outlet, and combustion for inflating the airbag by ignition and combustion by the ignition means. A gas generator for an air bag, comprising gas generating means for generating gas, wherein two combustion chambers containing gas generating means are provided in concentric circles adjacent to the housing in a radial direction, and the combustion chambers communicate with each other. A gas generator for an airbag, characterized in that a communication hole is provided to enable it. Other gas generators with two igniters, gas generators with two different gas generating means, gas generators with igniters with lead wires, gas generators with combustion chamber and ignition means in the inner cylindrical member, auto-ignition materials As a gas generator comprising a can effectively restrain the occupant. Airbag device, Gas generator, Ignition means, Combustion chamber, Inverter, Outlet, Flow passage, Lead wire, Module case

Variable control apparatus for airbag of vehicle

본 발명에 따른 차량의 에어백 가변제어장치는 일측이 에어백쿠션의 피복 중 승객이 접촉되는 부분인 전면피복에 결합되고, 에어백쿠션이 만개된 경우에 전면피복과 후면피복 사이의 거리보다 길이가 짧게 형성된 다수의 테더; 에어백쿠션의 후면피복 측에 마련되고, 다수의 테더들의 타측과 연결되어 작동시 연결된 다수의 테더들 중 선택적으로 테더를 해제하는 해제기구; 및 차량의 충돌방향, 시트상태 또는 착좌자세에 기반하여 해제기구를 작동시킴으로써, 에어백쿠션의 전개형상을 가변제어하는 제어부;를 포함할 수 있다. In the vehicle airbag variable control device according to the present invention, one side is coupled to the front cover, which is a part of the airbag cushion that is in contact with the passenger, and the length is shorter than the distance between the front cover and the rear cover when the airbag cushion is fully inflated. multiple tethers; a release mechanism provided on the side of the rear surface of the airbag cushion, connected to the other side of the plurality of tethers, and selectively releasing the tether from among the plurality of tethers when operated; and a control unit that variably controls the deployment shape of the airbag cushion by operating the release mechanism based on the collision direction, seat state or seating posture of the vehicle.

Patent JPS4821456B1

Gas generator

본 발명은 제1 가스 배출구군(16a)과 제2 가스 배출구군(16b)이 모두 시일 부재(17)로 폐색되고, 상기 제2 가스 배출구군(16b)은 상기 제1 가스 배출구군(16a)으로부터 축 방향으로 떨어져 있는 것인 가스 배출구군(16a, 16b)을 적어도 2개 둘레면에 갖는 관형 하우징(12), 각각 관형 하우징(12)의 한쪽 단부 및 다른쪽 단부를 폐색하고 있는, 점화 장치(25)를 갖는 제1 폐색 부재(30), 및 제2 폐색 부재(14)를 포함하고, 제1 및 제2 가스 배출구군(16a, 16b)을 개방시키기 위한 개구 압력 P 1 및 P 2 가 P 1 < P 2 의 관계를 만족시키고, 각각 제1 가스 배출구군(16a)은 관형 하우징(12)의 축 방향 중간부 또는 그 근방에 위치하고 있고, 제2 가스 배출구군(16b)은 제1 가스 배출구군(16a)과 제2 폐색 부재(14) 사이의 중간부 또는 그 근방에 위치하고 있는 것인 가스 발생기(10)을 제공한다. The present invention The first gas discharge port group 16a and the second gas discharge port group 16b are both closed by the seal member 17 and the second gas discharge port group 16b is closed from the first gas discharge port group 16a in the axial direction A tubular housing 12 having at least two gas discharge ports 16a, 16b on its circumferential surface, A first closing member (30) having an ignition device (25) and a second closing member (14), each of which closes one end and the other end of the tubular housing (12) The opening pressures P 1 and P 2 for opening the first and second gas discharge port groups 16a and 16b satisfy a relationship of P 1 <P 2 , The first gas discharge port group 16a and the second gas discharge port group 16b are located in the axial middle portion or the vicinity of the axial center of the tubular housing 12, 14, or in the vicinity thereof. And provides a gas generator (10).

Air bag gas generator and air bag apparatus

Occupant restraint system

A vehicle subject to high level and low level impact conditions includes an occupant restraint cushion which is inflated at a relatively high rate under high impact conditions and at a relatively low rate under low level impact conditions. The inflator for the cushion includes a pressure vessel containing pressurized stored gas and a combustion chamber containing a propellant. Under low level impact conditions, the propellant is ignited and the resultant gases flow through a fluted orifice into the pressure vessel and then flow with the stored gas to the cushion. The area of the orifice controls the flow rate of the resultant gases out of the combustion chamber to control the pressure within the chamber and the burn rate. Under high level impact conditions, a ball within the combustion chamber is explosively fired into the orifice to restrict the flow area of the orifice. This increases the pressure within the combustion chamber to increase the burn rate and the flow rate to the cushion.

GAS GENERATOR

MULTI-STAGE IGNITION TYPE GAS GENERATOR

Patent FR2217186A1

PERSONAL AND PROPERTY PROTECTION SYSTEM INCLUDING A LONG-TERM INFLATABLE STRUCTURE

L'invention concerne un système de protection comprenant au moins une structure gonflable (1) de sécurité associée chacune à un générateur de gaz activable par une commande extérieure caractérisé en ce que ladite commande extérieure comprend un signal électrique provenant d'un système automatisé chargé des fonctions critiques de sécurité d'un véhicule (50), correspondant à une information prédictive d'un choc, en ce que le générateur de gaz est configuré pour générer un gaz sur une durée telle que la durée totale de gonflement de la structure gonflable (1) est supérieure à 50 millisecondes et en ce que la structure gonflable est étanche. The invention relates to a protection system comprising at least one inflatable safety structure (1) each associated with a gas generator which can be activated by an external control, characterized in that said external control comprises an electrical signal originating from an automated system in charge of critical safety functions of a vehicle (50), corresponding to information predictive of an impact, in that the gas generator is configured to generate gas over a period of time such as the total duration of inflation of the inflatable structure ( 1) is greater than 50 milliseconds and in that the inflatable structure is waterproof.

Restoration of defective through hole

(57)【要約】 【課題】 バッグの展開形態を平面方向に広く展開させ るようにするとともに、乗員の着座状態が正常で無い場 合には、第二段目以降のガス発生を抑え、乗員が受ける 傷害を少なくする。 【解決手段】 バッグ１内にストラップ状の、あるいは 線状の部材からなる展開状態検出手段２を設ける。この 展開状態検出手段２の一端側に、当該展開状態検出手段 ２に生ずる張力が所定の値以上になったか否かを検出す る張力検出手段３を設ける。この張力検出手段３をもっ て第二段目のガス発生のためのスイッチング機構とす る。ガス発生手段５を第一段目のガス発生手段５１と第 二段目のガス発生手段５２とからなるようにする。ガス 発生手段５の作動手順等を制御する制御手段４を設け る。車両の衝突状態を検出するセンサ７を設ける。

ELECTRO-PYROTECHNIC IGNITER WITH TWO IGNITION HEADS AND USE IN AUTOMOTIVE SAFETY

ELECTRO-PYROTECHNIC IGNITER WITH TWO IGNITION HEADS AND USE IN AUTOMOTIVE SAFETY

L'allumeur (1) électro-pyrotechnique contient deux têtes d'allumage (2, 3) qui possèdent chacune un corps renfermant un élément résistif chauffant (20) et une composition pyrotechnique d'allumage (16). Ces deux têtes d'allumage comprennent également un moyen de dialogue et de déclenchement (49) d'une information codée ainsi qu'un moyen de stockage d'énergie électrique (46). L'allumeur comporte des rnoyens de liaison (54 à 56) externes destinés à être électriquement reliés à un boîtier électronique de commande. Cet allumeur est plus spécialement destiné à être utilisé en sécurité automobile, notamment pour constituer le dispositif d'allumage d'un générateur de gaz associé à un coussin de protection. The electro-pyrotechnic igniter (2) contains two ignition heads (2, 3) which each have a body containing a resistive heating element (20) and a pyrotechnic ignition composition (16). These two ignition heads also include a dialogue and trigger means (49) for coded information as well as an electrical energy storage means (46). The igniter comprises external connecting means (54 to 56) intended to be electrically connected to an electronic control unit. This igniter is more specifically intended for use in motor vehicle safety, in particular for constituting the ignition device of a gas generator associated with a protective cushion.

PYROTECHNIC GAS GENERATOR, VARIABLE FLOW RATE, FOR PROTECTIVE CUSHIONS

Driver's airbag with two pockets

L’invention concerne un coussin gonflable de sécurité pour conducteur de véhicule automobile prévu pour être logé dans sa configuration non déployé à l’intérieur du moyeu (5) du volant (3) dudit véhicule, ledit coussin gonflable comportant un sac gonflable replié (11) ainsi qu’un générateur de gaz pour assurer le gonflage et le déploiement dudit sac (11), ledit sac gonflable (11) comprenant au moins une première poche (111) apte à se déployer contre et à l’arrière dudit volant (3) ; caractérisé en ce que ledit sac gonflable (11) comprend également une seconde poche (112) apte à se déployer en périphérie externe de ladite première poche (111) entre cette dernière et le buste du conducteur, ladite seconde poche (112) présentant une pression de gonflage inférieure à celle de ladite première poche (111). Figure à publier avec l’abrégé : Fig. 4

DEVICE FOR PROTECTING A DRIVER FOR RETRACTABLE WHEEL

L'invention porte sur un dispositif de protection (10) d'un conducteur de véhicule, ledit véhicule comprenant un volant (2) configuré pour évoluer entre une position déployée et une position rétractée, ledit dispositif de protection (10) comprenant un premier coussin gonflable frontal (11), configuré pour être intégré audit volant (2) du véhicule et pour se déployer en cas de choc, quelle que soit la position du volant (2), ledit dispositif de protection (10) étant remarquable en ce qu'il comprend un deuxième coussin gonflable télescopique (12), configuré pour être intégré à ladite jante (21) du volant (2) et pour se déployer en cas de choc uniquement lorsque le volant (2) est en position rétractée, de manière à réduire la distance entre ledit conducteur et le premier coussin gonflable frontal (11). The invention relates to a protection device (10) for a vehicle driver, said vehicle comprising a steering wheel (2) configured to move between an extended position and a retracted position, said protective device (10) comprising a first cushion inflatable frontal (11), configured to be integrated with said steering wheel (2) of the vehicle and to deploy in the event of impact, regardless of the position of the steering wheel (2), said protection device (10) being remarkable in that it comprises a second telescopic airbag (12), configured to be integrated with said rim (21) of the steering wheel (2) and to deploy in the event of impact only when the steering wheel (2) is in the retracted position, so as to reduce the distance between said conductor and the first frontal airbag (11).

PYROTECHNIC GAS GENERATOR FOR MOTOR VEHICLE SAFETY

Ce générateur comporte une enveloppe tubulaire (1) subdivisée intérieurement par une paire de cloisons qui délimitent deux chambres de combustion situées aux extrémités de l'enveloppe (1) et communiquant via des orifices formant tuyère avec une chambre de tranquillisation centrale (40), laquelle communique elle même avec au moins une ouverture de décharge (400), la cloison (5A) de l'une au moins (30A) des chambres de combustion étant munie d'un organe protecteur qui empêche l'allumage intempestif de la charge pyrotechnique (3A) qu'elle contient par les gaz de combustion issus de l'autre chambre; cet organe protecteur est une plaquette mince et frangible (7) appliquée contre la cloison (5A) de la chambre (30A) et en obturant normalement l'orifice (50A), qui présente des zones de moindre résistance, telles que des rainures, aptes à se rompre sous la pression des gaz de combustion produits dans la chambre (30A) de sorte que les parties (70') bordant ces zones de moindre résistance se déploient en pétales vers la chambre de tranquillisation (40), autorisant ainsi le passage (F) des gaz dans cette dernière.Equipement de sécurité pour véhicules automobiles, notamment pour le gonflage d'un coussin de protection gonflable. This generator comprises a tubular casing (1) internally divided by a pair of partitions which delimit two combustion chambers located at the ends of the casing (1) and communicating via nozzle orifices with a central plenum (40), which communicates itself with at least one discharge opening (400), the partition (5A) of at least one (30A) of the combustion chambers being provided with a protective member which prevents inadvertent ignition of the pyrotechnic charge ( 3A) that it contains by the combustion gases from the other chamber; this protective member is a thin and frangible plate (7) applied against the partition (5A) of the chamber (30A) and normally closing the orifice (50A), which has zones of lesser ...

GAS GENERATOR FOR INFLATABLE CAR SAFETY CUSHION

L'invention concerne un générateur de gaz pyrotechnique (10) pour coussin gonflable de sécurité automobile (12), comportant une charge pyrotechnique, un premier système de détection (30) destiné à détecter un état de collision imminente, un second système de détection (32) destiné à détecter un état de collision avérée, et un initiateur pyrotechnique (28) situé dans une chambre de combustion (14) et apte à être actionné par le premier système de détection (30) et/ou par le second système de détection (32). Le générateur de gaz pyrotechnique selon l'invention comporte en outre un passage d'écoulement des gaz (16, 18) entre ladite chambre de combustion (14) et ledit coussin gonflable (12), et au moins un clapet (34) apte à être déplacé d'une première position dans laquelle il définit une première section d'écoulement vers une seconde position dans laquelle il définit une seconde section d'écoulement supérieure à ladite première section d'écoulement, ou inversement. En particulier, le clapet (34) est agencé de manière à définir la plus grande section d'écoulement lorsque l'initiateur pyrotechnique (28) est actionné par le premier système de détection (30).

Gas generator for motor vehicles air bag, has two combustion chambers, each with igniter to ignite gas production agent, and third combustion chamber where sequence of activation of igniters can be adjusted

The generator has a case (3) with a combustion chamber (10) traversed by gas produced in one of two combustion chambers (6, 7). Each one of walls (4, 5) defining the chambers is arranged with a band (16) to open a communication orifice (14, 15) only under gas pressure. The chambers (6, 7) have igniters (12, 13) to ignite gas production agents (8, 9). A sequence of activation of the igniters can be adjusted. The orifices allow communication between the chambers (6, 7) and the chamber (10).

PYROTECHNICAL GENERATOR WITH ADAPTABLE FLOW AND VOLUME OF GAS FOR PROTECTION CUSHIONS

PERSONAL SAFETY DEVICE IN THE EVENT OF A FALL

Patent FR2194594B1

Apparatus and method for inflating an occupant restraint of a vehicle

L'invention concerne un appareil destiné à gonfler un dispositif de retenue d'un occupant d'un véhicule. Il comprend un conteneur (16) destiné à recevoir des gaz pour produire un mélange combustible (18) de ces gaz qui peuvent être un gaz combustible et un gaz comburant. Un allumeur (24) est mis en action pour mettre à feu le mélange en réponse à une brusque décélération du véhicule. L'écoulement des gaz de combustion passe du conteneur (16) dans le dispositif (12) de retenue par l'intermédiaire d'un élément dirigeant ces gaz. Domaine d'application: gonflage de coussins de sécurité pour véhicules, de radeaux et de toboggans de secours, etc.

Safety device used for protecting pedestrians comprises an air bag device, a gas generator and a sensor coordinated so that the gas generator blows different volumes of gas in the direction

Safety device used for protecting pedestrians comprises an air bag device at least partly covering the outer side of a vehicle windscreen (1) when inflated, at least one gas generator (13) for inflating the air bag, and a sensor (17) for determining vehicle- and accident-specific data. The air bag device, the gas generator and the sensor are coordinated with each other so that the gas generator blows different volumes of gas in the direction of the air bag device depending on the data collected to cover the windscreen to different extents. Preferred Features: The sensor has a speed sensor (19) and is programmed so that as speed increases it instructs the gas generator to inflate an increasingly greater part of the air bag device.

SYSTEM FOR PROTECTING PEOPLE AND PROPERTY COMPRISING A LONG-TERM ACTION INFLATABLE STRUCTURE

L'invention concerne un système de protection comprenant au moins une structure gonflable (1) de sécurité associée chacune à un générateur de gaz activable par une commande extérieure caractérisé en ce que ladite commande extérieure comprend un signal électrique provenant d'un système automatisé chargé des fonctions critiques de sécurité d'un véhicule (50), correspondant à une information prédictive d'un choc, en ce que le générateur de gaz est configuré pour générer un gaz sur une durée telle que la durée totale de gonflement de la structure gonflable (1) est supérieure à 50 millisecondes et en ce que la structure gonflable est étanche. The invention relates to a protection system comprising at least one inflatable safety structure (1), each associated with a gas generator that can be activated by an external control, characterized in that said external control comprises an electrical signal coming from an automated system responsible for controlling critical safety functions of a vehicle (50), corresponding to a predictive information of a shock, in that the gas generator is configured to generate a gas over a period such that the total duration of inflation of the inflatable structure ( 1) is greater than 50 milliseconds and in that the inflatable structure is sealed.

Patent FR2224704A1

PYROTECHNIC GAS GENERATOR, VARIABLE FLOW RATE, FOR PROTECTIVE CUSHIONS

A generator (10) comprising a hollow body in which a sealing partition (9) defines two separate combustion chambers (1a, 1b) each containing a different gas-generating pyrotechnic charge (2a, 2b). An initiator (3) with two heads (4, 5) and a single power supply ignites each of the two charges at different times. The two heads (4, 5) may be provided with separate different resistors (R1, R2) or incorporated into a switching bridge comprising four switches combined with a diode circuit. Said generator (10) is useful for making a gradual generator for an air bag for protecting the driver of a motor vehicle.

GAS GENERATOR EQUIPPED WITH A VARIABLE VOLUME COMBUSTION CHAMBER

Multistage gas generator for airbag apparatus, has gas generating chambers with gas discharge ports where airbags are attached

Airbag inflators are accommodated in the gas generating chambers (13,14), which are provided with gas discharge ports (21-23). The gas discharge ports are used for attachment to the airbags. An independent claim is also included for an airbag apparatus.

PYROTECHNIC ADAPTIVE GAS GENERATOR WITH TUBULAR CHAMBERS FOR PROTECTIVE CUSHION

Le générateur (1) comporte un boîtier (2) cylindrique qui présente une paroi latérale (3) fermée à ses deux extrémités. Une plaque (6) transversale divise ledit boîtier (2) en une partie amont (9) et une partie aval (10). La partie amont (9) contient un tube (16) qui sépare de façon étanche deux chambres de combustion (17, 18) munies chacune d'un chargement pyrotechnique (19, 20). Un dispositif électrique d'allumage (5) est constitué par un initiateur à double tête (21, 22) ne comportant qu'une seule alimentation électrique. Les deux têtes (21, 22) peuvent être incorporées à un pont de commutation comportant quatre interrupteurs combinés à un circuit à diodes. Ainsi, il est possible, soit de n'initier qu'une seule tête (21, 22) au choix, soit d'initier les deux selon un décalage programmé dans le temps. Le générateur selon l'invention permet de constituer un générateur progressif destiné à gonfler un coussin de protection. The generator (1) comprises a cylindrical housing (2) which has a side wall (3) closed at both ends. A transverse plate (6) divides said housing (2) into an upstream part (9) and a downstream part (10). The upstream part (9) contains a tube (16) which sealingly separates two combustion chambers (17, 18) each provided with a pyrotechnic charge (19, 20). An electric ignition device (5) consists of a double-headed initiator (21, 22) comprising only one electric power supply. The two heads (21, 22) can be incorporated in a switching bridge comprising four switches combined with a diode circuit. Thus, it is possible either to initiate only one head (21, 22) as desired, or to initiate both according to a programmed offset in time. The generator according to the invention makes it possible to constitute a progressive generator intended to inflate a protective cushion.

Driver's airbag with two pockets

L’invention concerne un coussin gonflable de sécurité pour conducteur de véhicule automobile prévu pour être logé dans sa configuration non déployé à l’intérieur du moyeu (5) du volant (3) dudit véhicule, ledit coussin gonflable comportant un sac gonflable replié (11) ainsi qu’un générateur de gaz pour assurer le gonflage et le déploiement dudit sac (11), ledit sac gonflable (11) comprenant au moins une première poche (111) apte à se déployer contre et à l’arrière dudit volant (3) ; caractérisé en ce que ledit sac gonflable (11) comprend également une seconde poche (112) apte à se déployer en périphérie externe de ladite première poche (111) entre cette dernière et le buste du conducteur, ladite seconde poche (112) présentant une pression de gonflage inférieure à celle de ladite première poche (111). Figure à publier avec l’abrégé : Fig. 4 The invention relates to an airbag for driver of a motor vehicle intended to be housed in its undeployed configuration inside the hub (5) of the steering wheel (3) of said vehicle, said airbag comprising a folded airbag (11). ) as well as a gas generator for inflating and deploying said bag (11), said inflatable bag (11) comprising at least a first pocket (111) capable of being deployed against and behind said steering wheel (3 ); characterized in that said inflatable bag (11) also comprises a second pocket (112) capable of being deployed at the outer periphery of said first pocket (111) between the latter and the driver's chest, said second pocket (112) having a pressure inflation lower than that of said first pocket (111). Figure to be published with the abstract: Fig. 4

PYROTECHNIC GAS GENERATOR FOR MOTOR VEHICLE SAFETY

Multi-stage gas generator

Patent FR2184370A5

Low onset dual stage hybrid inflator

A low onset dual stage hybrid inflator comprising a diffuser subassembly, a gas generator subassembly, and a pressure vessel. The dual stage inflator offers a variety of different output levels of inflation gas. The four main deployment scenarios for the dual stage inflator are primary output, staged output, full output, and secondary only. For primary output, only the stored gas is released from the inflator. For staged output, the stored gas is released and after a short period of time (i.e. 30 ms), the gas generant is ignited. For the full output, the stored gas is released from the dual stage inflator at the same time the gas generant is ignited. For secondary output, only the gas generant subassembly is fired, and the hot gases from the gas generant subassembly mix with the stored gas. The combination of the hot gas and the stored gas has sufficient pressure to rupture the burst disk.

Airbag inflation system for motorcyclist, has a two stage gas generation arrangement with pyrotechnic charge triggered via radio code emitter on the motorcycle and a receiver on the motorcyclist

The air-bag inflation structure (10) is ensured by the generation of gas triggered by a pyrotechnic charge (7), and ensures a two stage generation of gas, one a rapid generation to inflate the device, and then a slower gas generation to maintain the pressure. The triggering of the pyrotechnic charge is controlled by two electronic devices, one placed on the motorbike and comprising principally of a deceleration sensor (1) and a detection and treatment module (2), and on the other located on the motorcyclist and comprising of a unit to trigger gas generation (8). The connection between the treatment and discrimination module and the gas generation triggering unit is constituted by a radio code emitter (3a) on the motorcycle and a receiver (3b) on the motorcyclist.

Air bag module for motor car, has generator filling gas bag with gas, and gas generating agent activating function in gas bag, projecting by aperture of gas bag casing into inner chamber of gas bag and opening vent hole of gas bag

The module (2) has a gas bag (15) comprising a gas bag casing (16) that limits an inner chamber of the gas bag. A gas generator fills the gas bag with gas, which is projected by an aperture (18) in the gas bag casing into the inner camber of the gas bag. A gas generating agent (6) activates a function in the gas bag and projects by another aperture of the gas bag casing into the inner chamber of the gas bag. The gas generating agent opens a vent hole of the gas bag and releases a catch tape or fills the gas bag with gas and/or coolant. An independent claim is also included for a method for manufacturing an air bag module.

Safety apparatus for inflating a vehicle safety device

1381083 Inflatable bags ALLIED CHEMICAL CORP 3 Jan 1973 [11 Jan 1972] 437/73 Heading B7B Vehicle safety apparatus comprises a gas source 34 having a gas containing portion 36 and a gas generating portion 32, a plurality of gas generating charges 28, 30 disposed within the gas generating portion, means 24, 26 for igniting the charges 28, 30 upon receipt of an electrical current and means for permitting gas developed from the charges 28, 30 to flow into the gas containing portion 36 with gas releasing means 40 connected to the portion 36 for permitting the pressurized gas and the generated gas to flow into an inflatable bag 31. In operation, forces resulting on vehicle impact displace a roller 87, Fig. 2, of an impact detector 14 against a first preselected resisting force determined by an electroconductive band 90 of stainless steel or gold plated copper until the band 90 contacts conductive element 92. An electric current is then transmitted from power source 12 to heat a bridge wire 84 which actuates detonator 82 to dislodge plug 80. Pressurized gas 38 then flows into bag 31. With a greater vehicle impact force roller 96, Fig. 3, of control element 16 is displaced against a greater resisting force determined by band 100 which contacts switch means 46 and resistance element 102 for electric current to be transmitted during a controlled time interval from source 12 via a transmission circuit 20 to bridge wire 60. Squib 54 then ignites a gas generating charge 28, the barrier 50 ruptures and gas flows through diffuser 76, portion 36 and into bag 31. Input forces of greater magnitude will similarly actuate control element 18 so that current is transmitted during a controlled time interval for actuating charge 30. As the roller 96 is displaced the band 100 is brought into contact with a variable portion of resistance element 102 so that the time interval of travel of current varies inversely with the vehicle impact force. The bag 31 preferably has a porous portion 144 ...

Gas generator

Patent FR2194594A1

Inflator for vehicle protection apparatus

A pressurized container includes a vessel defining a chamber therein. A housing that is connected to the vessel defines an outlet that is fluidly separated from the chamber by a closure member. A moveable member may be seated within and form a seal with the housing and abut the closure member. Activation of an initiator propels the moveable member through the closure member, thereby fluidly connecting the chamber and the outlet. The pressurized container might include an obstruction partially blocking an outlet path and another initiator that breaks the obstruction when activated, thereby further opening the outlet path. The pressurized container might include a main path fluidly connected to the outlet, a first secondary path that connects the main path to the chamber, and a second secondary path that also connects the main path to the chamber. If the pressurized container includes two secondary paths, a first closure member can fluidly separate the outlet from the chamber of the vessel along the first secondary path, and a second closure member can fluidly separate the outlet from the chamber of the vessel along the second secondary path. Also, the chamber might include a first portion and a second portion, wherein an isolator member substantially fluidly separates the first portion and the second portion.

Gas generator for air bag and air bag apparatus

A gas generator small in size and which can be produced easily with a simple structure is provided. The output of a gas generator is equalized so that an occupant can be safely restrained, and the combustion performance can be stably adjusted. The gas generator comprises a housing forming an outer shell container and accommodating two or more ignition units to ignite upon an impact and two or more gas generating agents which are independently ignited and burnt by the ignition units to generate a combustion gas for inflating an air bag, and a plurality of gas discharge ports which are formed in the housing, wherein the gas discharge ports are closed by sealing units for maintaining an internal pressure of the housing to the given pressure, a breaking pressure for breaking the sealing units is adjusted in multiple stages by controlling gas discharge ports and/or sealing units, and a difference of the maximum internal pressures in the housing at activation of the respective igniters is suppressed.

Airbag system and operating method for the same

The invention relates to an airbag system comprising an airbag and gas generating devices. The inventive system is also provided with deployment control devices which enable the airbag to be at least partially deployed before it is inflated with gas from the gas generating devices. The invention also relates to an operating method for one such airbag device.

Safety device for installation in a means of transport

Sicherheitsgerät zur Installation in einem Verkehrsmittel, mit einer aufblasbaren Hülle, die eine Einlassöffnung für die Aufnahme eines Gases aufweist, das die Hülle bis zum Bereitschaftszustand füllt, einem eine Gasquelle und einen Auslöseblock aufweisenden System zum Zuführen des Gases in Form von mehreren aufeinander folgenden Gasstromimpulsen zu der Hülle, und einer Ventileinrichtung, die ein vor den Eingang der Einlassöffnung der Hülle geschaltetes Hauptventil aufweist, das zwischen einer stabilen Offenstellung, in der das Gas aus der Gasquelle in die Hülle durch deren Einlassöffnung eintritt, und einer stabilen Geschlossenstellung, in der der Gasstrom durch die Einlassöffnung der Hülle unterbrochen ist, während der Überführung der Hülle in den Bereitschaftszustand umschaltbar ist, dadurch gekennzeichnet, dass das Hauptventil (14, 53) ein pneumatisch betätigbares Ventil ist und von einem elektropneumatischen Steuerventil (15, 54) mit Gas von der Gasquelle (3, 42) pneumatisch ansteuerbar ist, und das Steuerventil (15, 54) zwischen zwei stabilen Stellungen umschaltbar ist und auf elektrische Steuersignale von dem Auslöseblock (7, 44) anspricht. A safety device for installation in a vehicle, comprising an inflatable casing having an inlet for receiving a gas that fills the casing to a standby state, a system having a gas source and a trigger block for supplying the gas in the form of a plurality of successive gas flow pulses the sheath, and valve means having a main valve connected in front of the entrance of the inlet opening of the sheath, between a stable open position in which the gas from the gas source enters the sheath through its inlet opening and a stable closed position in which the gas flow is interrupted by the inlet opening of the shell, while the transfer of the shell is switched to the standby state, characterized in that the main valve (14, 53) is a pneumatically actuated valve and by an electro-pneumatic control valve (15, 54) with gas from the ...

Patent JPS4948034A

Controll system and method for airbag with active-vent

순차적인 작동을 통하여 에어백 쿠션을 2 단계로 나누어 팽창시키는 제1인플레이터 및 제2인플레이터; 작동부의 동작에 따라 선택적으로 벤트를 형성하는 액티브벤트; 및 제1전개조건의 만족시 제1인플레이터를 작동시키고, 제1시간동안 제2전개조건을 만족하면 제2인플레이터를 작동시키며 만족하지 못할 경우 액티브벤트를 작동시키고, 제2인플레이터가 작동된 경우에는 제2시간 후 액티브벤트를 작동시키는 제어부;를 포함하는 액티브벤트 에어백 제어시스템 및 그 제어방법이 소개된다. A first inflator and a second inflator configured to expand the airbag cushion in two stages through sequential operation; An active vent selectively forming a vent according to an operation of the operating unit; And operating the first inflator when the first development condition is satisfied, operating the second inflator if the second development condition is satisfied during the first time period, and if the second inflator is operated, operating the active vent if not satisfied. An active vent airbag control system including a control unit for operating an active vent after a second time and a control method thereof are introduced.

Airbag gas generator and airbag system

Gas generator with automatic ignition

Dual stage airbag inflator

2단계식 에어백 팽창기(30)는 제 1 및 제 2 연소 챔버와, 양 연소 챔버내의 연소 압력을 제어하기 위한 공동의 가스 배출 포트(7)를 구비한다. 이러한 팽창기는 사용된 점화 시퀀스에 따라 좌우되는 상이한 속도에서 에어백을 팽창시킨다. 제 1 단계만 전개되는 경우 저출력 성능 레벨이 발생한다. 제 1 및 제 2 단계 양자의 동시 점화는 보다 높은 성능 한계를 구성하는 반면에 다단화는 제 1 단계의 사용으로부터 약간의 시간 후에 제 2 단계가 전개된다. 단계는 가변 속도 형태로 팽창 가스를 공급하는 수단을 제공한다. The two-stage airbag inflator 30 has a first and a second combustion chamber and a common gas discharge port 7 for controlling the combustion pressure in both combustion chambers. This inflator inflates the airbag at different speeds depending on the ignition sequence used. Low power performance levels occur when only the first stage is deployed. Simultaneous ignition of both the first and second stages constitutes a higher performance limit, while multistage develops a second stage after some time from the use of the first stage. The step provides a means for supplying the inflation gas in a variable speed form.

Gas generator for generating a gas mixture

The invention relates to a gas generator for producing a gas mixture from a storage gas and a propellant gas. Said generator has a preferably cylindrical, longitudinal storage chamber holding the storage gas substantially at room temperature. When the gas generator is not activated the exit port of said storage chamber is sealed by a bursting device. It is intended to preferably produce in a pyrotechnic manner the hot propellant gas, which can flow via vent openings into the storage chamber, in a combustion chamber which is surrounded by the storage chamber. Said vent openings are positioned to be remote from the exit port, in particular on one side opposite the exit port and inside the gas generator and are not pressure-tight in relation to the storage gas in the storage chamber. The gas generator is structured in a simple manner to have the smallest possible number of components. The arrangement of the storage chamber and the combustion chamber ensures as constant as possible a mixture of storage gas and propellant and as constant as possible an increase in internal pressure inside the storage chamber.

Inflator device having modular construction and radial inflation gas flow

A modular inflator device for inflating an inflatable cushion of an inflatable cushion restraint system. The inflator device has an elongated cylindrical configuration and includes a supply of gas generant material to produce inflation gas upon reaction initiation. The inflator device includes a reaction housing defining a reaction chamber containing the supply of gas generant material. An initiator device is connected to the reaction housing and in reaction initiating communication with the supply of gas generant material. The reaction housing includes a plurality of radially oriented chamber discharge openings. Upon reaction initiation of the supply of gas generant material, the inflation gas discharges from the reaction chamber through the discharge openings. An initiator diffuser is disposed between the initiator device and the supply of gas generant material. The initiator diffuser includes a plurality of radially oriented diffuser discharge openings disposed in discharge orientation toward the reaction housing side wall. The reaction housing is connected to a filter housing, and a filter element is disposed within the filter housing and external of the reaction chamber.

Gas generator

본 발명은 금속제의 하우징(3)과, 상기 하우징(3) 내에 형성되고 가스 발생제가 장전(裝塡)된 연소실(5)과, 상기 연소실(5)의 주위에 배치된 필터 부재(6)와, 상기 하우징(3)에 장착되는 점화 수단(7)과, 상기 하우징(3)에 형성되는 다수의 가스 방출 구멍(8)을 갖게 이루어진 가스 발생기로서, 상기 하우징(3)을 형성하는 이니시에이터 쉘(1)과 클로저 쉘(2) 중 어느 한쪽 또는 양쪽이 반구 형상 또는 반타원 구 형상의 경판부(14, 10)와 직경(D)의 통부(13, 9)를 갖고, 상기 직경(D)과 각 상기 경판부(14, 10)의 바닥부간 거리(H)와의 비(H/D)의 범위가 0.4~1.3인 것에 관한 것이다. The present invention provides a metal housing (3), a combustion chamber (5) formed in the housing (3) and loaded with a gas generating agent, and a filter member (6) disposed around the combustion chamber (5); And a gas generator having an ignition means 7 mounted to the housing 3 and a plurality of gas discharge holes 8 formed in the housing 3, the initiator shell forming the housing 3 Either or both of 1) and the closure shell 2 have hemispherical or semi-elliptical spherical hard plate portions 14 and 10 and cylinder portions 13 and 9 having a diameter D, and the diameter D and The range of ratio (H / D) with the distance (H) between the bottom parts of each said hard board part 14 and 10 is 0.4-1.3.

Gas generator

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.

Apparatus for inflating a vehicle occupant restraint

Method for controlling the inflation of an airbag and airbag accident protection device

The invention relates to a method for controlling a gas bag (18) in a motor vehicle accident protection device, whereby a gas generator (21,22) is activated by an ignition signal and inflates the gas bag. The invention is characterised in that the temperature and/or pressure of the gas generator (21,22) is measured and inflation occurs in such a way that the required amount of pressure is obtained.

Drive device for restraining means in automobile

Air bag system for automotive passenger seat

An air bag system for protecting a passenger seated on the front passenger seat of a vehicle. In an initial stage, the air bag is inflated mildly. In the subsequent stage, the bag is inflated also mildly. The directivity of produced gas can be reduced. The air bag can be inflated mildly while maintaining a large area. The air bag system comprises an air bag case having an opening on its top side, an inflator disposed inside the air bag case, the aforementioned air bag folded in the air bag case, and a diffuser mounted between the inflator and the opening in the case. The air bag is placed in a side-by-side relation to the inflator and located behind the inflator inside the case. The diffuser is provided with numerous holes for supplying the gas. The diffuser acts to regulate flow of the gas from the inflator. At least when the gas is produced from the inflator, a space is created between the outer surface of the inflator and the diffuser.

Airbag system for vehicles

The airbag system for vehicles includes an airbag housing, a sliding door and a connection member. The airbag housing has a gas injection hole, through which inflation gas is injected into an airbag cushion when a vehicle collision occurs. The sliding door moves over the gas injection hole to control the amount of inflation gas injected into the airbag cushion. The connection member is connected between the airbag cushion and the sliding door such that the sliding door is moved by the inflation of the airbag cushion.

Gas generator for air bag system of vehicle, has pipe with ignition region whose middle diameter is larger than middle diameter of transmission region, where area of holes in ignition region is less than area of holes in transmission region

The generator has a flame transmission pipe (30) arranged in an axial direction of a tubular shaped housing within a combustion chamber and equipped with a set of communications holes The pipe has a ignition region (31) and a flames transmission region (32), and the middle inner diameter of the region (31) is larger than the middle inner diameter of the region (32). The overall openings surface area of the holes in the region (31) is less than the overall openings surface area of the holes in the region (32).

AIRBACK GAS GENERATOR AND AIR BAG DEVICE

Device for individual protection, comprising an airbag

The invention concerns a protective device comprising an airbag worn by a person, a pyrotechnic gas generator for inflating the airbag, and an actuator for the gas generator. The invention is such that the gas generator has a dual state combustion. Preferably, the generator is single-piece with single ignition. The invention device enables to provide a first inflating phase lasting about 60 ms at most, preferably between 30 and 50 ms; then a second phase maintaining inflation lasting at least a few seconds, preferably at least 4 s, more preferably still between 5 and 8 s.

Inflator

Low aggressive variable volume variable inflatable airbag system

(57)【要約】 エアーバッグ（１１）は、可変の寸法の膨張可能な容積（１０）と膨張レベルを制御する制御手段（２５）とを提供する、分離可能な縫い目線を備えている。

Inflator with directional flow separation disc

An inflator ( 40 ) for inflating an inflatable vehicle occupant protection device includes a primary stage ( 50 ) actuatable to produce a primary flow of inflation fluid, a secondary stage ( 100 ) actuatable to produce a secondary flow of inflation fluid, and a filter chamber ( 150 ) into which the primary and secondary flows of inflation fluid are directed. The inflator ( 40 ) also includes a secondary filter assembly ( 120 ) that permits the secondary flow of inflation fluid to flow into the filter chamber ( 150 ) and blocks particulates from flowing from the filter chamber into the secondary stage ( 100 ).

GAS GENERATOR AND INFLATABLE AIRBAG MODULE

L'invention concerne un générateur de gaz, en particulier pour un système de protection sur un véhicule, comprenant un diffuseur (10), qui forme de préférence avec un corps de fermeture (12) un boîtier extérieur, sensiblement symétrique en rotation, du générateur de gaz. Le diffuseur (10) présente plus de 12, de préférence plus de 14, plus préférentiellement 23 orifices d'évacuation (78), qui sont disposés dans une rangée. Le générateur de gaz présente d'autre part une pluralité d'autres particularités The invention relates to a gas generator, in particular for a protection system on a vehicle, comprising a diffuser (10), which preferably forms with a closure body (12) an outer casing, substantially symmetrical in rotation, of the generator gas. The diffuser (10) has more than 12, preferably more than 14, more preferably 23 discharge ports (78), which are arranged in a row. The gas generator on the other hand has a plurality of other features

Airbag with chambers

The invention relates to an airbag (10) for impact protection of the occupants of a motor vehicle, which airbag (10) has an outer shell (15) that can be inflated with gas through a gas inlet opening (19). The airbag (10) has an internal flow-inhibiting separating wall (21) which is provided inside the outer shell (15) and separates the inner volume of the outer shell (15) into at least one first chamber (11) and one second chamber (13), in such a way that the first chamber (11) is first inflatable through the gas inlet opening (19) to form a base volume, and the second chamber (13) is inflatable intentionally delayed in time by the inner separating wall (21) for the subsequent inhibited enlargement of the airbag volume in the direction of an impact zone.

Inflator for vehicle protection apparatus

A pressurized container (10) includes a vessel (12) defining a chamber (38) therein. A housing (16) that is connected to the vessel (12) defines an outlet (18) that is fluidly separated from the chamber by a closure member (14). A moveable member (22) may be seated within and form a seal with the housing (16) and abut the closure member (14). Activation of an initiator (20) propels the moveable member through the closure member, thereby fluidly connecting the chamber (38) and the outlet (18).

Multiple chamber dual stage inflator

A dual stage inflator 10 utilizes a housing 12 having two supplemental propellant combustion chambers 16 and 26, both symmetrically oriented within a primary propellant combustion chamber 34. Chambers 16 and 26 are formed to be substantially equivalent in dimensions and volume thereby simplifying the assembly and manufacturing process.

Method for controlling a gas bag and a gas bag accident protection device

The invention relates to a method for controlling a gas bag (18) in a motor vehicle accident protection device, whereby a gas generator (21,22) is activated by an ignition signal and inflates the gas bag. The invention is characterised in that the temperature and/or pressure of the gas generator (21,22) is measured and inflation occurs in such a way that the required amount of pressure is obtained.

A seat belt system with protraction speed detection

A seat belt retractor has an electric motor 10 with driving means 11 to retract and protract the seat belt, an air bag 57, a pretensioner 58, means for detecting the speed of protraction of the belt, and control means to control the belt, pretensioner or air bag, based on the protraction speed.