Air bag inflator with pressure regulation

Details Air bag inflator with pressure regulation Air bag inflator with pressure regulation

1997-03-19

1999-09-14

Culbreth, Eric

Land vehicles

Wheeled

Attachment

280737, 280741, 280742, B60R 2126

Patent

active

059510404

ABSTRACT:
An air bag inflator (10) includes a housing (20) and an inflation fluid source (140) in the housing actuatable to provide inflation fluid under pressure. The housing (20) is deformable due to the pressure of inflation fluid in the housing upon actuation of the inflation fluid source (140). The housing (20) has a fluid outlet (52) for directing flow of inflation fluid out of the housing. A control passage (160) is located between the inflation fluid source (140) and the fluid outlet (52). The control passage (160) has a smaller flow area than the fluid outlet (52). The inflator (10) further includes portions (84, 82, 110, 42) for causing substantially all inflation fluid flowing between the inflation fluid source (140) and the fluid outlet (52) to flow through the control passage (160). The flow area of the control passage (160) increases due to deformation of the housing (20). The flow area of the control passage (160) varies in accordance with the pressure of inflation fluid in the housing (20) upon actuation of the inflation fluid source (140).

REFERENCES:
patent: 3960390 (1976-06-01), Goetz
patent: 5236675 (1993-08-01), Swain et al.
patent: 5437472 (1995-08-01), Kuretake et al.

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