Patent · US Active

Hybrid inflator and vehicle safety system comprising said hybrid inflator as well as method of forming a shock wave

US10173633B2 · kind B2 · utility

2Cited by

26References

20Claims

0Family size

Assignee

TRW AIRBAG SYSTEMS GMBH · DE

Inventors

Detlef Last · Markt Indersdorf, DE
Lorenz Seidl · Waldkraiburg, DE
Rolf Ruckdeschel · Schwangau, DE

Key dates

Filing date	Dec 5, 2016
Grant date	Jan 8, 2019
Priority date	—
Expiry date	Dec 5, 2036

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60R2021/2642
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

The invention relates to a hybrid inflator (10) includes at least one combustion chamber (15) in which propellant charge is arranged and which has a discharge end (20), the propellant charge being formed of at least one propellant element (26), at least one igniting unit (12) by which the propellant charge can be ignited. The hybrid inflator (10) also includes at least one bursting element (14, 14′, 14″) which in the inactivated state of the hybrid inflator (10) delimits the combustion chamber (15) against a gas supply chamber (16) at the discharge end (20). The bursting element (14, 14′, 14″) and a restraint element (18, 18′, 18″) maintain the propellant charge in its position and/or the bursting element (14, 14′, 14″) and the propellant charge delimit a shock gas volume (SGV), wherein in the activated state of the hybrid inflator (10) the shock gas volume (SGV) acts on the bursting element (14, 14′, 14″) like a gas pressure spring.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.