Patent Number: 7,784,827

Title: Variable output using piezo valve technology

Abstract: An airbag inflator that contains a first quantity of inflation gas. This gas may be housed in a chamber. A quantity of liquid fuel may also be added. This fuel may be housed within a liquid fuel chamber. The quantity of inflation gas may operate to pressurize the liquid fuel chamber. A piezo-valve is also added. The piezo-valve seals the liquid fuel chamber. The piezo-valve is capable of variably releasing liquid fuel from the chamber such that when this secondary liquid is ignited, the airbag inflation gas can be augmented as desired.

Inventors: Smith; Bradley W. (Plain City, UT), Parks; Brent A. (Englewood, CO)

Assignee: Autoliv ASP, Inc.

International Classification: B60R 21/272 (20060101)

Expiration Date: 8/31/12018