Passive closing device for thermal self-protection of high pressure gas vessels

US8794254B2 · kind B2 · utility

Assignee

• GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

• Oliver Maier · Worms, DE
• Jurgen Thyroff · Harxheim, DE

Key dates

• Filing date: Jan 5, 2012
• Grant date: Aug 5, 2014
• Expiry date: Apr 1, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/7737
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

High pressure gas vessels can have a sensitivity to temperature of the compressed gas. Over-temperature conditions in particular may cause decreased durability and/or vessel damage, including gas leakage to the environment. Articles of manufacture, methods, and systems are provided for over-temperature protection using a passive device. The passive closing device does not require electrical power and no controller, sensors, or wiring is needed. This affords cost savings in comparison to other systems. Pressure vessels using the passive closing device can protect themselves, independent of the compressed gas fueling station configuration.