BG113154A - Diesel rotary internal combustion engine - Google Patents

Abstract

The engine can be made in either diesel or petrol variant. It has an extended operating speed of up to 360 degrees from the rotation of the rotor and presupposes maximum combustion when using heavy fuels, such as diesel, its mixtures with fuel oil, marine fuel. It comprises coaxially connected motor block and compressor block by means of a partition plate (20), in which are formed a discharge outlet (22) and an arc channel (21). The motor block consists of two stators (1 and 2), a partition plate (3) in between, with a connecting opening (4), eccentrically housed and coaxially connected rotors (7 and 11), in which are mounted an n number of hinged blades (8 and 14) having a specific shape, whereby n> 1. In the motor rotor (7), behind the forehead of the blades (8) with sealing elements (9 and 10) are formed combustion chambers (16), and in the body of the second rotor (11), under the blades (14) with sealing elements (15) are formed chambers (12) for secondary air are connected to the compressor.

Description

DIESEL ROTARY COMBUSTION ENGINE

Field of technique

The engine is designed to drive relatively low-speed machines at a relatively constant operating mode, such as agricultural and construction machines, ship engines, etc.

Prior art

A rotor plate engine with internal combustion is known, consisting of a housing with a special profile on its inner surface and an eccentrically located rotor divided into engine and compressor sections [1]. One plate is mounted diametrically in the body of the rotors.

The engine is characterized by a long stroke, but the compaction between the separated volumes of the working space in the compressor and the engine section is insufficient to create the necessary degree of compression in the combustion prechamber, which is outside the casing, for diesel fuel operation. The turbulent movement of the fuel mixture through the combustion prechamber to the main combustion chamber creates difficult-to-solve ignition problems and.

A diesel rotor engine is known, developed on the principle of the Wankel engine, consisting of a coaxially connected engine and compressor block with a partition plate between them, in which there is an opening connecting the two blocks [2]. The engine can work with different types of fuel, which is supplied by two places.

The disadvantages of this diesel rotor engine stem from the established disadvantages of the Wankel engine: poor contact between the rotor and the stator, increased fuel consumption with increased toxicity of exhaust gases, short duration of the working stroke with insufficient time for the complete combustion process.

A useful model of an internal combustion rotor engine is known, consisting of a compressor block and an engine block with a partition plate between them [3]. In the coaxially connected rotors, articulated blades of a specific shape are installed, and behind their faces, in the engine rotor, are formed Combustion chambers. A disadvantage of this rotary engine is that the area around the combustion chambers is not compacted enough to create a higher degree of compression, as well as a relatively insufficient duration of the working stroke necessary for the complete combustion of diesel fuel.

Technical essence of the invention

The task of the invention is to create a diesel rotor engine with internal combustion, which has improved sealing of the working elements of the rotor to the stator, has an increased degree of compression, with a long and optimal combustion process, leading to an increase in the efficiency of the engine at working with heavy fuels (diesel, its mixtures with fuel oil, marine fuel).

The task is solved by a diesel rotor engine with internal combustion composed of an engine block and a compressor block consisting of epitrochoid-shaped stators, between them a partition plate with an opening and an arcuate channel, and inside them eccentrically located and coaxially connected rotors. In the body of the rotors are mounted hingedly connected η number of blades with a specific shape, where η > 1. In the compressor rotor they dissolve in the direction of rotation, in the engine rotor in the opposite direction of rotation, and in its body, behind the front of the blades, fuel are formed chambers. The invention is characterized by the fact that the engine block consists of a main stator and a second stator with an eccentrically located and coaxially connected motor rotor with combustion chambers and a second rotor, respectively. Between them is placed a partition plate with a cut segment forming an opening that connects the working volumes of the two stators and the burning gases in the second half of the working cycle pass from the main stator in which it started lo the combustion, in the second stator, where the process of afterburning of the fuel continues, with which it is extended up to 360° of the rotation of the rotor. The second stator has a round shape, an exhaust opening and an opening connected to the compressor, and in its rotor are installed hinged connected blades with sealing elements and dissolving in the opposite direction of rotation. Below them, in the body of the rotor, secondary air chambers are formed, cyclically contacting the opening connected to the compressor. This air goes to the afterburning of the fuel, especially when using diesel, its mixtures with fuel oil, marine fuel. During the rotation of the engine rotor, the side openings of the combustion chambers cyclically contact the arc-shaped channel connected to the compressor and made in the partition plate below the level of the blades relative to the shaft, and sealing elements are mounted on their convex surface at both ends.

The advantages of the engine are improved compaction of the working volume, more uniform and increased torque, extended to 360° of rotation of the rotor working stroke, with the addition of secondary air, which leads to more complete combustion of heavy fuels, such as diesel, its blends with fuel oil, marine fuel and increasing engine efficiency.

Description of attached figures

Figure 1 is a longitudinal section of the motor along the axis of the motor along sections A-A: from fig.2, fig.3, fig.4. Figure 2 is a cross-section of the motor stator with the rotor in the starting position of f : ·.. I * ·;··. ' ^: • · · · ···· · · · ·· ·· ·· ·· ···· ·· stroke expansion. Figure 3 - cross section of a compressor block. Fig.4 - cross section of the second stator is a rotor.

Example of implementation of the invention

An exemplary embodiment of a diesel rotor engine with internal combustion with three blades is presented. The engine block consists of an engine stator 1 with a coaxially connected stator 2, a partition plate 3 between them with a connecting hole 4, an exhaust hole 5, a shaft 6, an engine rotor 7, vanes 8, sealing elements 9 and 10, rotor lie air chambers 12, opening 13, vanes 14 with sealing elements 15, combustion chambers 16, side opening 17 electric ignition (electrical heating) plug 18 diesel fuel injected 19. Partition plate 20 , arc channel 21, discharge port 22, fuel injector 23. The compressor consists of a stator 24, a rotor 25, vanes 26 with sealing elements 29, a pressure plate with a spring 27, a suction port with a channel 28.

Application of the invention

The action of the diesel rotor engine with internal combustion begins with forced rotation of the shaft 6 with the three rotors 7 11 and 25, during which the compressed air from the compressor passes through the discharge hole 22, where fuel (petrol gas,) is supplied through an injector 23 and the formed fuel -air mixture enters the arched channel 21. When the engine rotor 7 rotates, the combustion chamber 16 through the side opening 17 comes into contact with the arched channel 21 and its filling begins. The compression of the fuel-air mixture or only air continues until the combustion chamber 16 exits its contact with the arc-shaped channel 21. This is followed by ignition with an electric spark plug 18 or injection with an injector 19 of diesel fuel. In another variant of a diesel engine, as well as when working with heavier fuels, in order to achieve a higher degree of compression and self-ignition, part of the fuel (gas, gasoline) is pre-supplied by injector 23 and before diesel injection is ignited by electrolysis the spark plug 18. The combustion stroke follows with the expansion of the burning gases, which exerting pressure on the vanes 8, the rotor 7 rotates. During the second half of the expansion stroke, the burning gases enter the second stator 2 through the opening 4 in the partition plate 3, where they are mixed with secondary air that is carried from the chambers 12. Thus, especially when heavy fuels are used, such as mixtures of diesel with other heavier fuels, their afterburning takes place in the second stator 2, where the burning gases continue to give off the kinetic and thermal their energy on the rotor 11, during which they go out into the atmosphere with a lower temperature. For one revolution of the shaft 6, as many working cycles as the number of blades are performed.

Claims (1)

1. Diesel rotor engine with internal combustion composed of an engine block and a compressor block consisting of stators in the shape of an epitrochoid, between them a partition plate with an opening and an arcuate channel, inside them eccentrically located and coaxially connected rotors, with mounted in their body hinged connected blades of a specific shape, which in the compressor rotor dissolve in the direction of rotation, in the engine rotor in the opposite direction of rotation, as in its body, behind the faces of the blades combustion chambers, characterized in that the engine block consists of a main stator (1) and second stator (2) with eccentrically located and coaxially connected engine rotor (7) and second rotor (11), between them a partition plate (3) with a cut segment forming an opening (4) connecting the working volumes of the two stators ( 1 and 2 ), in which the second stator ( 2 ) is circular in shape, a discharge opening ( 5 ), an opening ( 13 ) connected to the compressor, and in the body of the second rotor ( 11 ) a hinged connection is installed blades ( 14 ) of a specific shape and sealing elements ( 15 ), dissolving in the opposite direction of rotation, under them in the body of the rotor ( 11 ) are formed chambers ( 12 ) cyclically in contact with an opening ( 13 ), at the same time, the arc-shaped channel ( 21 ), with which the side openings ( 17 ) of combustion chambers ( 16 ) in the body of the engine rotor ( 7 ) cyclically contact, is made below the level of the vanes ( 8 ) relative to the shaft ( 6 ), at both ends of which are installed sealing elements (9 and 10).