Gas generator

Details Gas generator Gas generator

2006-08-29

2009-08-25

Ilan, Ruth (Department: 3616)

Land vehicles

Wheeled

Attachment

C280S736000, C280S741000, C280S742000, C102S531000

Reexamination Certificate

active

07578522

ABSTRACT:
The present invention provides a gas generator including a housing formed by a closure shell and a diffuser shell having a gas discharge port,a combustion chamber provided inside the housing and charged with a gas generating agent,an ignition device to ignite and burn the gas generating agent inside the combustion chamber,a cylindrical filter disposed to face the gas discharge port and having an annular upper surface press-contacting a ceiling surface of the housing,a retainer disposed inside the combustion chamber to support the cylindrical filter,the retainer being substantially a cylinder, having a larger diameter portion and a smaller diameter portion, that is provided with a vent hole, as well as an annular surface portion provided between the larger diameter portion and the smaller diameter portion,an outer peripheral surface of the larger diameter portion abutting against an inner wall surface of the housing before activation and press-contacting the inner wall surface of the housing in activation, the annular surface portion press-contacting an annular lower surface of the cylindrical filter and an outer peripheral surface of the smaller diameter portion abutting against an inner peripheral surface of the cylindrical filter,a lower end portion of the larger diameter portion press-contacting the inner peripheral surface of the housing.

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