Steering wheel mounted aspirated airbag system

摘要

Aspirator for an airbag deploying into a vehicle passenger compartment in order to protect a driver of the vehicle during an accident, includes a housing having an innermost and an outermost wall and defining an outlet at a distal end leading to an airbag and coaxial flow passages between the innermost and outermost walls into which air from a passenger compartment flows to inflate the airbag. An aspiration system is coupled to the housing and configured to direct gas into the flow passages to mix with the air from the passenger compartment in the flow passages. The aspiration system includes openings on an inner side of the outermost wall and on an outer side of the innermost wall. These openings are configured such that the gas is directed therefrom into the flow passages in a direction substantially parallel to a flow direction of air into the flow passages.

主权项

1. An aspirator for an airbag deploying into a vehicle passenger compartment, comprising:
a housing comprising an innermost and an outermost wall, said housing defining an inlet at a proximal end and an outlet at a distal end leading to the airbag and a plurality of coaxial flow passages between said innermost and outermost walls into which air from a passenger compartment flows to inflate the airbag; and an aspiration system for directing gas into said flow passages to mix with the air from the passenger compartment in said flow passages, said aspiration system including openings on an inner side of said outermost wall and on an outer side of said innermost wall.