Charging structure suitable for low-temperature ignition

• Main Authors: YANG LIBO, SHU HUIMING, MI YANGLI, HE HAIMIN, HAO BIYING, ZHANG JUN, WANG ZHONG, ZHU JIAJIA
• Format: Patent
• Language: Chinese; English
• Published: 28.05.2021
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; GAS-TURBINE PLANTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; JET-PROPULSION PLANTS; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

The invention provides a charging structure suitable for low-temperature ignition. The charging structure comprises a propellant grain, and a center hole with the two ends being through is formed in the center of the propellant grain in the axial direction; an inner conical opening which is coaxial with the center hole and communicates with the center hole is formed in one end of the propellant grain; an ignition powder ring mounting groove is formed in the end face of the other end of the propellant grain, an ignition powder ring is mounted in the ignition powder ring mounting groove in an embedded mode, and the ignition powder ring and the center hole are coaxially arranged; the end face of one end of the ignition powder ring and the bottom of the ignition powder ring mounting groove are bonded through a nitrocotton solution bonding layer; and a coating layer is arranged on the side wall of the propellant grain. According to the charging structure, on the premise that the internal ballistic property is met,