COLD-LAUNCH METHOD AND APPARATUS THEREOF

摘要

A cold-launch method and apparatus are provided. The present invention follows the formula of "accumulated energy quick releasing + effective transmission = launching movement". A gas-liquid combined cylinder (1) is used as the catapult mainbody and is cooperated with a gas tank (6) and a control valve (1-1). In the cold launch condition of the catapult being closed, the high energy gas stored in the gas tank of the catapult gets into a gas-access end of the gas-liquid combined cylinder through the control valve and is quickly released. Synchronously multistage pistons (10-12) in the liquid-access end of the gas-liquid combined cylinder are thrust to launch the load. An energy recovering device for the cold launch is provided. In one solution, an energy recovering pump (2-4) and a take-off cylinder (2-2) are installed on a shuttle carriage (2), and a position limiting cylinder (3-1) is mounted on a guide rail (2-5). Alternatively, a movable slide rail (2-6) is hinged to the front portion of the guide rail, and the energy recovering pump and the take-off cylinder are installed on said movable slide rail.