UA71925U - Brozinskyi's propulsion device - Google Patents

Abstract

A Brozinskyi’s propulsion device comprises a frame and two propellers made ​​for rotation in opposite directions, each of the propellers is permanently connected to an annular channel embracing it, with possibility of free rotation on its axle, which is attached in a fork of a frame, and the annular channel is connected by an element of flexible transmission of rotation with its shaft being common to both screws of a drive equipped with a mechanism of rotation of the shafts in opposite directions.

Description

The utility model belongs to rotorcraft engines with two or more main rotors.

A known pusher, containing two propellers installed on the frame, made with the possibility of rotation in opposite directions (Patent of the Russian Federation for the invention

MO 2010743, publ. 04/15/1994, Mo application 4930421/23 dated 03/26/1991|.

The thruster, according to a known technical solution, has a relatively low aerodynamic efficiency of the ends of the propeller blades, which thus limits the thrust force of the thruster and the carrying capacity of the aircraft.

The basis of the proposed technical solution is the task of creating a motor that would not have the above-mentioned disadvantages.

The task is solved by the technical development of the Brozinsky engine, the essence of which is explained by the schematic images in figures 1-3.

The Brozinsky actuator, which contains a frame (1) and two air propellers (2), made with the possibility of rotation in opposite directions, differs in that each of the air propellers is inseparably connected to the annular channel (3) covering it, with the possibility of of free rotation on its axis (4), which is fixed in the fork of the frame (5), and the ring channel is connected by an element of flexible transmission of rotation (b) to its shaft (7), which is common to both drive screws (See footnote 8 in Fig. 1 ), equipped with a shaft rotation mechanism (9) in opposite directions.

The element of flexible transmission of rotation from the drive shafts of the engine can be made in the form of a toothed belt or chain.

Transmitted rotation of air propellers in opposite directions can be carried out using a shaft rotation mechanism built on the basis of gear, friction or other transmission.

Each of the propellers is inseparably connected with the annular channel covering it to limit the marginal flow of the air flow from the high pressure zone to the low pressure zone, which allows to increase the useful area of the ends of the blades, for the possibility of rejecting a larger mass of air with the blades.

The propeller rotation drive has a flexible kinematic connection with the annular channel,

Which, in turn, provides a simplified kinematic connection between the engine and propellers, and the transmission of the force of rotation of the propeller not to the axis of rotation, where the torque is the largest and, accordingly, requires the use of high-strength and heavy (massive) structural elements and transmission of rotation , and in the zone of the occurrence of the greatest aerodynamic forces, thus relieving the propeller blade from the rotational moment.

Therefore, the relatively low weight of the thruster, according to the stated technical solution, and the relatively simpler design of its rotation drive, require significantly less energy consumption for the thruster to work, which allows the thruster to be used on aircraft with a larger payload without increasing the material capacity.

The Brozinsky thruster fixed on the aircraft frame can be powered by any suitable engine (internal combustion, electric, etc.). The engine (10) rotates the drive shafts, which, in turn, with the help of a flexible transmission, rotate the annular channels with air propellers in different directions, thus providing the aircraft with motion.

Drawing:

Fig. 1. Schematic side view of the Brozinsky engine.

Fig. 2. Schematic top view of the Brozinsky engine.

Fig. 3. Technical drawing of an aircraft equipped with a Brozinsky engine 1 - frame; 2 - propellers; C - ring channel; 4 - axis; 5 - frame fork; b - element of flexible transmission of rotation; 7 - shaft; 8 - drive; 9 - shaft rotation mechanism; 10 - engine.

The Brozinsky thruster can be used in various aircraft designs, including airplanes, helicopters, lifting platforms, etc. The general view of a possible light aircraft equipped with a Brozinsky thruster is shown in Fig. 3.

Brozinsky's pusher can be manufactured at any machine-building factory equipped with welding equipment, devices and mechanisms for performing operations related to mechanical processing, and adapted for metalwork and assembly work with aircraft-sized products.

Claims (1)

UTILITY MODEL FORMULA A motor comprising a frame and two propellers designed to rotate in opposite directions, characterized by the fact that each propeller is inseparably connected to an annular channel enclosing it, with the possibility of free rotation on its axis, which is fixed in the fork of the frame, and the annular channel is connected by an element of flexible transmission of rotation to its shaft, which is common to both screws of the drive equipped with a mechanism for rotating the shafts in opposite directions. not zhk y Met ' chi 2 45 ,// 1 5 2 Z A V nitya a /LY I rrobosi Nav V I KK yy y y nyy sh.shiy NN YSLYNE sncfnoo rennya BO nn y in MY BASKET I write a trig. 1 2 B b 7 106 Z BchR22 X a: I sya 8 and i horn. 2