Safety device for ignition circuit of fuel gas generator

• Main Authors: CHI KEGANG, QIN HUIGUO, LU XIAOXIONG
• Format: Patent
• Language: English
• Published: 25.03.2015
• Subjects: BLASTING; COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; JET-PROPULSION PLANTS; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

The invention discloses a safety device for an ignition circuit of a fuel gas generator. The safety device comprises a supporting seat, a partition plate (2), a spring (6), a location pin (4), an unlocking grain (7), an unlocking igniter, a fuel gas generator igniter (9), a rotary shaft, a torsional spring and a double-bridge detection circuit. The supporting seat, the partition plate (2), the rotary shaft and the locating pin (4) are made of metal materials, the supporting seat is in a cylindrical shape, the rotary shaft is arranged on the supporting seat and fixed by threads, and the partition plate (2) is arranged on the upper surface of the supporting seat, rotate around the rotary shaft and is locked by the location pin (4) to cut off a fire line of the fuel gas generator igniter (9). When the safety device works, the fuel gas generator igniter (9) is unlocked to ignite the unlocking grain (7), locking of the partition plate (2) by the location pin (4) is removed, and the ignition circuit of the gas generator is disconnected. The safety device is simple in structure, small in size and capable of reliably protecting the ignition circuit of the gas generator.