CN114604196A - Gas generator for an airbag - Google Patents

Gas generator for an airbag Download PDF

Info

Publication number
CN114604196A
CN114604196A CN202210292683.7A CN202210292683A CN114604196A CN 114604196 A CN114604196 A CN 114604196A CN 202210292683 A CN202210292683 A CN 202210292683A CN 114604196 A CN114604196 A CN 114604196A
Authority
CN
China
Prior art keywords
tubular body
cover
booster
gas generator
annular
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202210292683.7A
Other languages
Chinese (zh)
Other versions
CN114604196B (en
Inventor
王海洋
郭超波
刘建斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Bonded Area Arc Automotive Co ltd
Original Assignee
Ningbo Bonded Area Arc Automotive Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Bonded Area Arc Automotive Co ltd filed Critical Ningbo Bonded Area Arc Automotive Co ltd
Priority to CN202210292683.7A priority Critical patent/CN114604196B/en
Publication of CN114604196A publication Critical patent/CN114604196A/en
Application granted granted Critical
Publication of CN114604196B publication Critical patent/CN114604196B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/264—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic
    • B60R21/2644—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic using only solid reacting substances, e.g. pellets, powder
    • B60R21/2646—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic using only solid reacting substances, e.g. pellets, powder the reacting substances being supported by the inflatable member walls, or by a flexible support within it
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/261—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow with means other than bag structure to diffuse or guide inflation fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/264—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic
    • B60R21/2644—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic using only solid reacting substances, e.g. pellets, powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R2021/26029—Ignitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R2021/26076—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow characterised by casing

Abstract

The invention discloses a gas generator for an airbag, which has the technical scheme that the gas generator comprises an ignition tube, a shell and a flow guide cover, wherein the ignition tube and the flow guide cover are positioned at two ends of the shell; the booster explosive support assembly is fixed in the shell and located at the upper end of the ignition tube, the booster explosive support assembly is provided with an annular space for placing booster explosive, the center of the booster explosive support assembly is an open central opening, a central opening hole faces the air guide sleeve, and the center of the booster explosive support assembly is an open central opening, so that the area of the booster explosive support center is open without blocking pressure waves. Meanwhile, the booster explosive is continuously combusted to reduce variability, and the optimized ignition reduces the pressure inside the shell, so that the design meets the requirement of higher safety factor.

Description

Gas generator for an airbag
Technical Field
The present invention relates to the field of gas generators, and more particularly, to a gas generator for an airbag.
Background
The automobile can protect the safety of personnel in the automobile as far as possible when an accident happens, and the safety airbag is arranged in the automobile and used for buffering the impact force.
Now, a chinese patent document with an authorization publication number CN209938522U is retrieved, and the name of the chinese patent document is a hybrid gas generator for a side airbag, and the description in this specification states that "the first diversion cup 4 and the second diversion cup 7 cooperate to effectively perform diversion buffering", that is, 2 diversion are adopted to have a diversion function, and also have a function of blocking pressure waves.
As in the above technical documents, most of the existing airbag generators include a structure for blocking pressure waves, such as a diversion cup, etc., and create a curved path for the pressure waves, and the pressure waves squeeze the inert gas to the diversion cover along the curved path, which requires a large internal pressure; therefore, the airbag generator must add its own structural strength to counteract the higher internal pressure (iop), which is a design requirement for the tortuous path design.
Therefore, the market needs a structure which does not increase the structure of the air bag generator and can lead the pressure wave in the air bag generator to walk stably.
Disclosure of Invention
The present invention provides a gas generator for an airbag, in which the center of a booster bracket assembly is an open center opening, which allows the center area of a booster seat to be open without obstructing a pressure wave. While continuing to burn booster to reduce variability; the optimized ignition mode reduces the pressure inside the shell, so that the design meets the requirement of higher safety factor.
The technical purpose of the invention is realized by the following technical scheme:
a gas generator for an airbag comprises an ignition tube, a shell and a flow guide cover, wherein the ignition tube and the flow guide cover are positioned at two ends of the shell; the booster explosive bracket component is fixed in the shell and is located at the upper end of the ignition tube, the booster explosive bracket component is provided with an annular space for placing booster explosive, the center of the booster explosive bracket component is an open central opening, and the central opening faces the flow guide cover.
Preferably, the booster explosive bracket assembly comprises a booster explosive support and an explosive cover; the booster explosive support comprises a tubular body, wherein one end of the tubular body is provided with an annular cover, the inner diameter edge of the annular cover is arranged on the tubular body in a matching way, and the outer diameter edge of the annular cover is arranged on the inner wall of the shell in a matching way; the other end of the tubular body is provided with a medicine cover which is a hollow annular body, the inner diameter edge of the medicine cover is sleeved on the outer side of the tubular body, and the outer diameter edge of the medicine cover is arranged on the inner wall of the shell in a matching way; the annular space is a space enclosed by the outer wall of the tubular body, the inner wall of the shell, the annular cover and the medicine cover.
Preferably, the inner diameter edge and the outer diameter edge of the medicine cover are turned over towards the same direction to form a flanging; the cross section of the medicine cover is U-shaped, and the bottom of the U-shaped structure in the medicine cover is abutted against the booster in the annular space.
Preferably, the tubular body is provided with a plurality of openings communicating the central opening with the annular space, the openings are distributed in a row along the circumferential direction of the tubular body, and at least 1 row of the openings are distributed on the tubular body.
Preferably, the tubular body comprises 2 rows of openings.
Preferably, the tubular body is sleeved with a sleeve for shielding the opening.
Preferably, the sleeve is a paper tube.
Preferably, the sleeve is located between the annular cap and the cap, the sleeve being frictionally secured to the tubular body.
Preferably, the annular cover is U-shaped in cross section, and the tubular body and the inner diameter edge of the annular cover are integrally connected.
Preferably, the pod includes a plurality of pod apertures.
In conclusion, the invention has the following beneficial effects:
an improved booster seat having an annular cover which receives a booster in the annular space between the booster seat and the wall of the housing, the cover serving to hold the booster in place.
The center of the booster bracket component is an open center opening, which enables the central area of the booster support to be open without blocking pressure waves.
The opening in the booster support is used for controlling the combustion of the propellant and enabling the inert gas to be heated continuously, and the inert gas flows out of the air guide sleeve and enters the air bag. When the booster is combusted in the annular space, the size of the open hole affects the amount of inert gas transferred to the housing by the heat of the booster during combustion.
The inflator is operated by activating the squib, which passes through the squib sleeve. This action serves to ignite the booster charge and propagate a pressure wave to the outlet burst disk to open the disk. An inert gas in the housing flows through the pod to inflate the bladder.
Drawings
FIG. 1 is a cross-sectional view of an embodiment;
FIG. 2 is a schematic structural view of an explosive-propagating support in the embodiment;
FIG. 3 is a sectional view of an explosive charge holder in the embodiment;
FIG. 4 is a schematic structural view of the cap of the embodiment;
FIG. 5 is a side sectional view of the cap of the embodiment;
FIG. 6 is a sectional view showing the mounting of the sleeve to the booster seat in the embodiment;
FIG. 7 is a schematic structural view showing the installation of the sleeve in the booster seat in the embodiment;
FIG. 8 is a sectional view of the pod in an embodiment.
In the figure:
10. a gas generator main body;
12. a housing;
13. a gas mixture;
14. an ignition tube assembly;
16. a pod; 38. blasting a disc; 40. a flow guide hole;
20. an igniter tube;
18. an igniter tube sleeve;
22. an explosive transfer cartridge assembly; 32. a medicine cover; 33. a central opening;
24. an explosive propagation support; 26. a tubular body; 28. an annular cover; 34. opening a hole;
30. an annular space;
36. booster;
37. a sleeve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
An embodiment, a gas generator for an airbag, referring to fig. 1, includes a gas generator body 10, the gas generator body 10 including a case 12 containing a gas mixture 13, a squib assembly 14 fixed to one end of the case 12, and a pod 16 fixed to the opposite end of the case 12.
The fire tube assembly 14 receives the fire signal and activates the airbag inflation. The squib assembly 14 includes a squib sleeve 18 for receiving a squib 20. The igniter tube assembly 14 is known and is similar to the starter assembly of prior gas generators and further details will not be described.
The ignition tube 20 and the air guide sleeve 16 are positioned at two ends of the shell 12, an explosion transfer powder support assembly 22 is fixed in the shell 12, the explosion transfer powder support assembly 22 is positioned at the upper end of the ignition tube 20, the explosion transfer powder support assembly 22 is provided with an annular space 30 for placing explosion transfer powder 36, the center of the explosion transfer powder support assembly 22 is an open center opening 33, and the center opening 33 faces the air guide sleeve 16.
Booster bracket assembly 22 includes booster seat 24 and cover 32.
See fig. 1, 2 and 3. A gap exists between booster seat 24 and squib sleeve 18 to allow gas flow.
The booster explosive support 24 comprises a tubular body 26, the tubular body 26 is a metal round tube, one end of the tubular body 26 is provided with an annular cover 28, the inner diameter edge of the annular cover 28 is matched and arranged on the tubular body 26, the through center of the annular cover 28 and the tubular body 26 after being connected is a central opening 33, in the embodiment, the cross section of the annular cover 28 is U-shaped and is integrally connected with the tubular body 26; in other embodiments, the inner diameter of the annular cover 28 may be larger than the outer diameter of the tubular body 26, the annular cover 28 being disposed within the tubular body 26, the outer diameter of the annular cover 28 remaining fixed to the inner wall of the housing 12.
The outer diameter edge of the annular cover 28 resiliently engages the inner wall of the housing 12.
A medicine cover 32 is arranged at the other end of the tubular body 26, the medicine cover 32 is a hollow annular body, the inner diameter edge of the medicine cover 32 is sleeved on the outer side of the tubular body 26, and the outer diameter edge of the medicine cover 32 is arranged on the inner wall of the shell 12 in a matching manner;
the annular space 30 is the space enclosed by the outer wall of the tubular body 26, the inner wall of the housing 12, the annular cap 28 and the drug cap 32.
The inner diameter edge and the outer diameter edge of the medicine cover 32 are turned over in the same direction to form a turned edge;
referring to fig. 1, 4 and 5, the inner diameter edge of the cap 32 is in elastic contact with the outer wall of the tubular body 26, the outer diameter edge of the cap 32 is in elastic contact with the inner wall of the housing 12, and the cap 32 can slide relative to the tubular body 26 to adjust the size of the annular space 30 in order to accommodate the amount of booster 36 in the annular space 30.
The cap 32 is U-shaped in cross-section, and the bottom of the U-shaped structure in the cap 32 abuts the booster charge 36 in the annular space 30, i.e. the bottom of the U faces the annular space 30 and the annular cap 28.
Referring to fig. 1, 2 and 3, the tubular body 26 is provided with a plurality of openings 34 communicating the central opening 33 and the annular space 30, the openings 34 are arranged in a row along the circumferential direction of the tubular body 26, and the openings 34 distributed on the tubular body 26 have 2 rows, each row having 10 openings 34.
The openings 34 are used to control the combustion of the booster charge and to keep the inert gas heated. The opening 34 is sized to receive the booster charge within the annular space.
Booster charge 36 is located in annular space 30 and engages annular cover 28. Booster charge 36 fills loosely into annular space 30, and unlike some prior designs, does not require bagging of the booster charge.
Referring to fig. 1, 6 and 7, a sleeve 37 for covering the opening 34 is sleeved on the tubular body 26, and the sleeve 37 is a paper tube. A sleeve 37 is located between the annular cap 28 and the cap 32, the sleeve 37 being frictionally secured to the tubular body 26. The sleeve 37 serves to prevent the passage of booster particles through the opening 34 without affecting the function or operation of the airbag inflator 10. The sleeve 37 may be held in place by the cap 32.
Referring to fig. 1 and 8, the pod 16 includes a plurality of flow holes 40. In this embodiment, the number of the flow guide holes 40 is 6, and in other embodiments, the number of the flow guide holes 40 is 7, 8 or 9. The burst disk 38 is located at the inner mouth of the pod 16. In some embodiments, the rupture disc 38 is a cross-shaped disc that includes a pair of linear score lines that intersect at the center of the disc 38 to form a cruciform score pattern. The cross score line controls the manner in which the burst disk 38 bursts, thereby preventing fragments of the burst disk 38 from plugging the pilot holes 40 in the pod 16.
The working principle is as follows: the squib assembly 14 receives an electronic activation signal to activate the squib 10. Activating the squib assembly 14 will break the squib sleeve 18, thereby igniting the booster charge 36 and causing a pressure wave to propagate to the outlet burst disk 38, thereby opening the disk 38.
The apertures 34 are used to control combustion and provide for continuous heating of the inert gas in the housing 12 as the booster charge 36 burns. The orifices 34 control the flow rate of the gas from the combustion of booster charge 36. The baffle 16 inhibits the flow of gas, thereby controlling the time and pressure of the gas in the bladder. The number of baffle holes 40 and the size of the openings in the baffle 16 are specifically configured to prevent gas from entering the bladder too quickly, which could otherwise cause the bladder to inflate, or enter the bladder too slowly.
The open center in booster charge holder assembly 22 provides a clear path for the pressure wave generated by squib 20 assembly 14. Thus, the gas generator body 10 can be operated using a lower internal operating pressure, which increases the safety factor. The opening 34 in booster seat 24 controls the combustion of booster 36 and provides for the continued heating of the inert gas in housing 12, which further increases the safety factor. This design also reduces the time to first fill, which is an advantage over previous curved path designs.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and all technical solutions that belong to the idea of the present invention belong to the scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims (10)

1. A gas generator for an airbag, characterized by: the ignition device comprises an ignition tube (20), a shell (12) and a flow guide cover (16), wherein the ignition tube (20) and the flow guide cover (16) are positioned at two ends of the shell (12);
a booster explosive support assembly (22) is fixed in the shell (12), the booster explosive support assembly (22) is located at the upper end of the ignition tube (20), an annular space (30) for placing booster explosive (36) is formed in the booster explosive support assembly (22), the center of the booster explosive support assembly (22) is an open center opening (33), and the center opening (33) faces the flow guide cover (16).
2. The gas generator for an airbag according to claim 1, wherein: the booster bracket assembly (22) comprises a booster support (24) and a explosive cover (32);
the booster seat (24) comprises a tubular body (26),
an annular cover (28) is arranged at one end of the tubular body (26), the inner diameter edge of the annular cover (28) is arranged on the tubular body (26) in a matching way, and the outer diameter edge of the annular cover (28) is arranged on the inner wall of the shell (12) in a matching way;
a medicine cover (32) is arranged at the other end of the tubular body (26), the medicine cover (32) is a hollow annular body, the inner diameter edge of the medicine cover (32) is sleeved on the outer side of the tubular body (26), and the outer diameter edge of the medicine cover (32) is arranged on the inner wall of the shell (12) in a matching manner;
the annular space (30) is a space surrounded by the outer wall of the tubular body (26), the inner wall of the shell (12), the annular cover (28) and the medicine cover (32).
3. The gas generator for an airbag according to claim 2, wherein: the inner diameter edge and the outer diameter edge of the medicine cover (32) are turned over in the same direction to form a turned edge;
the cross section of the medicine cover (32) is U-shaped, and the bottom of the U-shaped structure in the medicine cover (32) is abutted to the booster (36) in the annular space (30).
4. The gas generator for an airbag according to claim 2, wherein: the tubular body (26) is provided with a plurality of open pores (34) communicated with the central opening (33) and the annular space (30), the open pores (34) are distributed in a row along the circumferential direction of the tubular body, and at least 1 row of the open pores (34) distributed on the tubular body (26) is provided.
5. The gas generator for an airbag according to claim 4, wherein: the tubular body (26) includes 2 rows of apertures (34).
6. The gas generator for an airbag according to claim 4, wherein: the tubular body (26) is sleeved with a sleeve (37) for shielding the opening (34).
7. The gas generator for an airbag according to claim 6, wherein: the sleeve (37) is a paper tube.
8. The gas generator for an airbag according to claim 6, wherein: a sleeve (37) is located between the annular cap (28) and the cap (32), the sleeve (37) being frictionally secured to the tubular body (26).
9. The gas generator for an airbag according to claim 2, wherein: the cross section of the annular cover (28) is U-shaped, and the inner diameter edges of the tubular body (26) and the annular cover (28) are integrally connected.
10. The gas generator for an airbag according to claim 1, wherein: the pod (16) includes a plurality of flow holes (40).
CN202210292683.7A 2022-03-23 2022-03-23 Gas generator for an airbag Active CN114604196B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210292683.7A CN114604196B (en) 2022-03-23 2022-03-23 Gas generator for an airbag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210292683.7A CN114604196B (en) 2022-03-23 2022-03-23 Gas generator for an airbag

Publications (2)

Publication Number Publication Date
CN114604196A true CN114604196A (en) 2022-06-10
CN114604196B CN114604196B (en) 2024-02-09

Family

ID=81864557

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210292683.7A Active CN114604196B (en) 2022-03-23 2022-03-23 Gas generator for an airbag

Country Status (1)

Country Link
CN (1) CN114604196B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102414057A (en) * 2009-04-30 2012-04-11 日本化药株式会社 Gas generator
US20150239425A1 (en) * 2014-02-21 2015-08-27 Takata AG Gas Generator Assembly For An Airbag Module
CN105270316A (en) * 2014-07-21 2016-01-27 天合安全气囊系统有限责任公司 Blow-out device, mixing aerator, the airbag module and vehicle safety systems
CN206344786U (en) * 2016-12-12 2017-07-21 比亚迪股份有限公司 A kind of gas generator of air bag
CN110497876A (en) * 2018-05-18 2019-11-26 天合安全气囊系统有限责任公司 Propellant cage, inflator, inflator operating method and guide shock wave method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102414057A (en) * 2009-04-30 2012-04-11 日本化药株式会社 Gas generator
US20150239425A1 (en) * 2014-02-21 2015-08-27 Takata AG Gas Generator Assembly For An Airbag Module
CN105270316A (en) * 2014-07-21 2016-01-27 天合安全气囊系统有限责任公司 Blow-out device, mixing aerator, the airbag module and vehicle safety systems
CN206344786U (en) * 2016-12-12 2017-07-21 比亚迪股份有限公司 A kind of gas generator of air bag
CN110497876A (en) * 2018-05-18 2019-11-26 天合安全气囊系统有限责任公司 Propellant cage, inflator, inflator operating method and guide shock wave method

Also Published As

Publication number Publication date
CN114604196B (en) 2024-02-09

Similar Documents

Publication Publication Date Title
KR100386755B1 (en) Hybrid Inflator
US6199906B1 (en) Dual stage pyrotechnic inflator
US5368329A (en) Dual stage inflator
US6338500B1 (en) Hybrid gas generator provided with an initiator with shaped explosive charge
US5628528A (en) Dual chamber nonazide gas generator
JP3315686B2 (en) Gas generator and airbag device for multistage airbag
US7044502B2 (en) Dual stage pyrotechnic driver inflator
US6237950B1 (en) Staged air bag inflator
EP1361971B1 (en) Dual chamber inflator
EP0776800A2 (en) Inflators which store premixed fluid fuel and oxidizer in a porous matrix
WO1996018527A9 (en) Hybrid inflator
JP2007099266A (en) Hybrid airbag inflator
CN109641567B (en) Gas generator
CZ162395A3 (en) Device for inflation of personal inflatable protection in a vehicle
JP2017197170A (en) Hybrid inflator, airbag unit and vehicle safety system that comprise such hybrid inflator, and method of forming shock wave
EP0616927B1 (en) Inflator assembly
JP2001354105A (en) Gas generator for multistage air bag
JPH11263185A (en) Air bag inflator
EP3992037B1 (en) Inflator with annular center generant holder
WO1994001307A1 (en) A gas generator arrangement
CN114604196A (en) Gas generator for an airbag
US6089597A (en) Gas generator and method for operating a gas generator
JP2002337655A (en) Gas generator for air bag
JP5242228B2 (en) Gas generator for personnel restraint system
JP3279550B6 (en) Multistage airbag gas generator and airbag device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant