B - Operations – Transporting – 60 – R
Patent
B - Operations, Transporting
60
R
B60R 21/26 (2006.01) B60R 21/20 (2006.01) F16K 17/40 (2006.01) B60R 21/01 (2006.01)
Patent
CA 2221799
A valve mechanism (40) for controlling the release of gas (52) from a pressure vessel (50) into an airbag system is disclosed. When a collision occurs, gas (52) is initially released from a pressure vessel (50). The gas (52) travels through a valve mechanism (40) which regulates the volume of the gas (52) flowing through the valve from the pressure vessel (50) into an inflatable vehicle occupant restraint (30). When inflated, the vehicle occupant restraint (30) restrains an occupant of a vehicule during a collision. By controlling the gas flow into the airbag (30) at the appropriate times, the valve achieves the desired bag energy absorbing characteristics for each unique crash situation. The valve uses pilot pressure and actuating means (86) to control the flow by controlling the cross-sectional area of the gas flow path through the valve system (40).
L'invention concerne un mécanisme de valve (40) pour réguler la libération de gaz (52), depuis un récipient (50) sous pression, dans un système d'air-bag. Quand il se produit une collision, le gaz (52) est libéré initialement d'un récipient (50) sous pression. Le gaz (52) traverse le mécanisme de valve (40) qui ajuste le volume de gaz (52) traversant la valve depuis le récipient (50) sous pression dans un système gonflable (30) restreignant les mouvements de l'occupant. Quand il est gonflé, le système (30) immobilise l'occupant du véhicule durant une collision. En ajustant le débit du gaz dans l'air-bag (30), à des moments appropriés, la valve permet d'avoir les caractéristiques d'absorption de l'énergie adaptées à chaque situation de collision particulière. La valve utilise une pression pilote et un moyen d'actionnement (86) pour adapter le débit, par l'ajustement de la section transversale offerte au flux de gaz dans le système de valve (40).
Airbelt Systems Llc
Macrae & Co.
LandOfFree
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