摘要:
According to the invention, in order to lift said safety detent, use is made of a multi-vane fan (5), which is arranged inside the fuselage (2) of the projectile, but the vanes (4) of which pass through said fuselage (2) via a lateral opening (3).
摘要:
A method and apparatus for protecting and arming fuses in a projectile to satisfy safety requirements and to initiate ignition with only minimal delay. In accordance with the method, after launch of a projectile, behind a cap having a central inlet opening a safety device of a turbine/ignition pin unit is released and the impeller thereof is subjected to ram pressure. The ram pressure displaces the turbine/ignition pin unit into a front position, to act as impact detector. In a device constructed in accordance with the invention, the turbine/ignition pin unit has a screw thread on its shank and is screwed into a threaded bushing so that the ram pressure displaces the unit, against the direction of flow into the front position. On impact, the rear end of the unit acts as a percussion needle and initiates an ignition chain.
摘要:
A method and apparatus for protecting and arming fuses in a projectile to satisfy safety requirements and to initiate ignition with only minimal delay. In accordance with the method, after launch of a projectile, behind a cap having a central inlet opening a safety device of a turbine/ignition pin unit is released and the impeller thereof is subjected to ram pressure. The ram pressure displaces the turbine/ignition pin unit into a front position, to act as impact detector. In a device constructed in accordance with the invention, the turbine/ignition pin unit has a screw thread on its shank and is screwed into a threaded bushing so that the ram pressure displaces the unit, against the direction of flow into the front position. On impact, the rear end of the unit acts as a percussion needle and initiates an ignition chain.
摘要:
A grenade device for use with and for ejection from an artillery shell is ovided. The device includes a stabilizing propeller and a grenade body. The propeller has two opposite blades disposed on opposite sides of a rotation axis. Each blade has an upper tilted portion and a lower substantially flat portion and a connecting return bend tip portion. Each such portion has a leading edge and a trailing edge. Each upper tilted portion has a transverse angle of attack. The upper tilted portions have a common longitudinal upper projected axis. The lower flat portions also have a common longitudinal lower projected axis. The common longitudinal upper projected axis and the common longitudinal lower projected axis form a projected displacement angle therebetween. The propeller is made from a flexible metal or fabric ribbon. The blades are folded in a nested arrangement before descent. During descent, the blades unfold to their overall aerodynamic shape. The propeller has a windmill type of rotation during descent. The grenade body may have an alternator as part of an electronic fuze, which is connected to a shaft, that is connected to the propeller coaxially therewith along the rotation axis for energizing the alternator.
摘要:
An arming arrangement with rotatable airfoils or blades of a propeller constituting the deliverants for an arming criterium. The blades of the driving propeller for a drone, have the rotational movement thereof determined from the tail end of the drone towards one side of the propeller hub through a beam or radiation coupling and is then conducted to a counting evaluating circuit for the derivation of a release signal for the arming device.
摘要:
The nose portion of a missile having a ram air turbine for driving an electric generator for supplying electric power to the electric circuits of the missile, especially of its fuse, is designed in a special manner in order to provide, at high missile speeds, a throttling of the air flow, whereby the speed of rotation of the turbine may be kept within reasonable limits. Thus, the air inlet is divided in a plurality of inlet ducts arranged as a wreath around the foward end of the missile. Further, the outlet openings are forwardly directed and co-operate with the shock waves from the acute forward end of the missile and from an annular edge surrounding the wreath of inlets but lying radially inside the outlet openings.
摘要:
A centrifugal clutch for transmitting rotary motion from a first rotating shaft to a second rotatable member, only when the first rotating shaft has an angular speed of a value between predetermined upper and lower angular speeds, including a first circular plate fixed to the rotating shaft. A pair of spring biased members having shoulders formed on the outer edges thereof are pivoted to the circular plate and are adapted to move outwardly during rotation at a sufficient angular speed. The first circular plate is received by four arcuate shoes radially slidably mounted on a second circular plate and include inwardly extending projections formed thereon adapted to engage the shoulders. After rotational speed increases beyond a predetermined upper limit, the shoes move outwardly relative to the plate and disengage the clutch.
摘要:
1. In a fuze for a bomb adapted to be dropped from an aircraft and armed in free fall flight, A CASING, AN ARMING ROTOR ROTATABLY MOUNTED IN SAId casing for movement from an initial safe position to an armed position in incremental distances, A TIME DELAY MECHANISM CONNECTED TO THE ROTOR FOR PREVENTING MOVEMENT OF THE ROTOR FOR A PREDETERMINED TIME INTERVAL, SAID TIME DELAY MECHANISM INCLUDING A STORED ENERGY SPRING MEANS FOR MOVING THE ROTOR THROUGH A FIRST INCREMENTAL DISTANCE PRIOR TO SAID TIME INTERVAL AND FOR MOVING THE ROTOR THROUGH A SECOND INCREMENTAL DISTANCE AT THE EXPIRATION OF SAID TIME INTERVAL, A ROTOR LOCKING MEANS CONNECTED TO SAID ROTOR FOR RELEASING SAID ROTOR FOR MOVEMENT THROUGH SAID FIRST INCREMENTAL DISTANCE BY SAID STORED ENERGY MEANS WHEN THE BOMB IS SUBJECTED TO A PREDETERMINED MINIMUM AIR VELOCITY AND FOR STARTING SAID TIME DELAY MECHANISM, AND AN ENVIRONMENTALLY POWERED DRIVING MEANS MOUNTED UPON SAID CASING AND POSITIONED FOR DRIVING ENGAGEMENT WITH THE ROTOR WHEN THE ROTOR HAS BEEN MOVED THROUGH SAID SECOND INCREMENTAL DISTANCE FOR DRIVING THE ROTOR TO SAID ARMED POSITION, WHEREBY SAID BOMB IS ARMED AFTER THE EXPIRATION OF A PREDETERMINED TIME INTERVAL SUBSEQUENT TO RELEASE OF THE BOMB BY THE AIRCRAFT AT NORMAL LAUNCHING AIR SPEEDS.
摘要翻译:1.在一枚适用于从飞机上坠落并在自由落体飞行中装备的炸弹的引信中,A CASING,AN ARMING ROTOR ROTATABLY安装在SAId套管中,用于从初始安全位置向增量距离的武装位置运动,A TIME 延迟机构连接到转子,用于防止转子在预定的时间间隔中的运动,具体的时间延迟机制包括存储能量弹簧装置,用于在通过第二个时间间隔移动转子之前通过第一个增量距离移动转子 在达到时间间隔期间的增加距离,转向器的连接方式连接到转子上,用于通过按照存储的能量方式通过第一次增加的距离来释放转向器,当物料清单受到预定的最低空速和启动时间时 延迟机制和环境驱动装置安装在外壳上并定位用于与ROTO的驱动接合 R当转子已经通过确定驱动转子以确定武装位置的第二次增加距离时,由于飞机在正常启动空速下发布预定的时间间隔后才能装载BOMB。
摘要:
A proximity type bomb fuse provided with means designed to ensure that the full arming of the fuse is delayed sufficiently for the bomb to have become separated from its point of release or propulsion by a safe distance.
摘要:
An arming mechanism for a spinning projectile, whereby said mechanism is responsive only to the simultaneous existence of both a predetermined centrifugal force and a predetermined force caused by the airflow passing the projectile as it travels through the air. First means responding to the force caused by the airflow and second means responding to the centrifugal force unite to produce a driving force within the arming mechanism due to relative motion between the first means and the second means. The driving force is transmitted through the second means for moving a detonator from a safety position to an armed position.