AIRBAG INFLATOR SYSTEM

摘要

A vehicle airbag inflator (10) utilizing gas-generating propellant elements (1) containing a central aperture (18). The propellant elements are aligned adjacent to each other in a column so that their central apertures form an axially symmetrical ignition channel (18) extending through the propellant column. The size of the ignition channel formed by the central apertures of the propellant elements is such that an initiating explosion resulting from the activation of an associated initiator propagates substantially instantaneously along the ignition channel, igniting the propellant. A preferred ignition channel diameter is from about 1-5 millimeters. Applicant's novel inflation system eliminates the need for a propellant ignition cord or other ignition enhancer, while simultaneously enhancing the time to first pressure parameter for the system, reducing manufacturing costs and reducing the size of the system.