FIRE TRUCK (VERSIONS) Russian patent published in 2024 - IPC A62C27/00 A62C5/02 A62C31/02 

FIELD: fire-fighting equipment.

SUBSTANCE: group of inventions relates to fire extinguishing, namely to two versions of a fire truck, which can be used for extinguishing and localizing fires. In the first version, the fire truck comprises a base chassis and a reservoir with solutions of components A and B of the foaming agent, channel for release of each solution of components is connected, through the corresponding main hose, to one of the paired high-pressure hoses and through the components mixing device and the single component mixing hose to the foam generator. Tank with solutions of components is made with vertical baffle from stainless material along the whole height for separation of solutions. Mixing device of components A and B is made in the form of a T-joint, two inlet channels of which form angle of 120±10 degrees, common hose for mixing components connected to outlet channel of T-joint forms with foam generator continuous structure, in which length of mixing hose is determined by given formula. Foam generator comprises a cylindrical inlet channel, the outlet of the inlet channel is connected to a cone-shaped chamber with a rigidly connected cylindrical tip at the outlet, on which there is a device for controlled air suction made in the form of a ring arranged with possibility of rotation in the tip groove and equipped with the first row of holes at angle of 45 degrees in direction of flow, the second row of holes is made under the ring, perpendicular to the flow direction, and cylindrical tip is equipped with film-forming meshes at the outlet. In the second version, the tank truck is equipped with two cylinders with solutions of components A and B of the foaming agent, the upper cover of each cylinder is equipped with a quick-release valve for connection to the water main. Each cylinder inside contains a flat horizontal separating membrane, which is fixed with possibility of sliding relative to the cylinder wall and the vertical tube inside the cylinder along the whole height of the tube; the membrane serves to separate the displacing water and the solution of component A or B displaced by it.

EFFECT: higher efficiency of fire truck operation, reduced weight of equipment, reduced time of fire extinguishing by application of special design of foam generator with specially made composition for fire extinguishing.

22 cl, 5 dwg, 3 tbl