SU1260547A1 - Rotary internal combustion engine - Google Patents

Description

The invention relates to internal combustion engines, namely rotary engines, and can be used as a power plant for a mobile or stationary system.

A rotary internal combustion engine is known, comprising a housing with a trochoidal working cavity, a three-vertex rotor with combustion chambers made in its faces, and an additional combustion chamber located on the housing and communicating with its working cavity at least by two channels with axes intersecting in the longitudinal plane of the engine 1.

equal to the angle formed by the axes of the channels 12. A zonal candle 14 is placed in the zone of constant burning. A heat-insulating gap is formed between the cylindrical shank of the insert 11 and the bore 15 in the housing.

The device works as follows.

When the rotor b rotates, the fuel-air mixture enters through the engine intake ports 2 and fills the working cavity 4.

In the process of compression, the main part of the charge filling the working cavity, in connection with the reduction of its volume from the periphery, the channels are made divergent, which j is displaced and concentrated

during combustion of the fuel-air mixture and ejecting it from the channels, it provides an extensive flame of the flame dispersed throughout the volume of the working cavity of the engine. This leads to intensive heating of the engine surfaces, heat removal from the charge and a reduction in the combustion efficiency of the fuel-air mixture.

The aim of the invention is to increase the fuel efficiency of the engine by localizing the ignition zone of the fuel-air mixture in the combustion chamber.

To achieve this goal in a rotary internal combustion engine, comprising a housing with a trochoidal working cavity, a three-vertex rotor with combustion chambers formed in its faces, and an additional combustion chamber placed on the housing and communicated with its working cavity through at least two channels with the axes intersecting in the longitudinal plane of the engine, the point of intersection of the axes of the channels is located in the cavity of the rotor's combustion chamber, and the walls of the latter are inclined to its base at an angle equal to the angle emomu axes.

FIG. 1 shows a rotary engine with an additional camera, a longitudinal section; in fig. 2 shows section A-A in FIG. one.

The rotary internal combustion engine includes a housing 1 with suction 2 and exhaust 3 windows and a working cavity 4, combustion chambers 5, made in the edges of the rotor 6, an additional chamber with separate air inlet channels 7 and 8 fuel, and a continuous-flame zone 9 located between the screen 10 and the bottom of the heat-resistant insert 11, through the body of which at least two output channels 12 are intersected, intersecting at a point located in the cavity of the combustion chamber 5. The side walls 13 of the combustion chamber are inclined to its base at an angle.

It is located in the trans-shaped combustion chamber 5 with a depth exceeding the width.

At the same time, from the continuous burning zone 9 of the torch, supported by the aerodynamic recirculation of the fuel / air mixture behind the screen 10, formed by the continuous supply of fuel and air to the additional chamber through the channels 7 and 8, the products of the torch combustion split by the channels 12, flow out in continuous jets intersect Thus, in the cavity of the combustion chamber 5, they form, in the cross-sectional plane of the combustion chamber, a stationary zone of concentration of hot combustion products of the flame. The concentration zone of the charge of the air-fuel mixture is combined with the concentration zone of the products of combustion of the torch.

As a result, as the rotor rotates, the entire charge concentrated in the combustion chamber is burned throughout the trench-shaped combustion chamber and thus the fuel is completely combusted. The location of the intersection point of the axes of the output channels 12 determines the depth of the combustion chamber 5.

The invention eliminates the possibility of the formation of remote areas of air-fuel mixture concentration from the point of exit of the combustion products of the torch. Equivalent conditions are created for the combustion of the charge of the working mixture in the entire volume of the combustion chamber.

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The elimination of local overheating of the engine body in the zone of functioning of the continuous burning torch is achieved by forming between the cylindrical shank and the cylindrical bore 15 in the case of the annular heat insulating gap.

The invention improves engine efficiency by localizing the ignition zone of the air-fuel mixture.

equal to the angle formed by the axes of the channels 12. A zonal candle 14 is placed in the zone of constant burning. A heat-insulating gap is formed between the cylindrical shank of the insert 11 and the bore 15 in the housing.

The device works as follows.

When the rotor b rotates, the fuel-air mixture enters through the engine intake ports 2 and fills the working cavity 4.

In the process of compression, the main part of the charge filling the working cavity, in connection with a decrease in its volume, is displaced from the periphery of the working cavity and concentrates

It is located in the trans-shaped combustion chamber 5 with a depth exceeding the width.

At the same time, the torch continuous combustion zone 9, supported by the aerodynamic recirculation of the fuel-air mixture behind the screen 10, formed by continuously supplying fuel and air to the additional chamber through channels 7 and 8, the combustion products of the torch, split by the channels 12, flow in continuous jets, intersect into the cavities of the combustion chamber 5 and thus form, in the cross-sectional plane of the combustion chamber, a stationary zone of concentration of hot combustion products of the flame. The concentration zone of the charge of the air-fuel mixture is combined with the concentration zone of the products of combustion of the torch.

As a result, as the rotor rotates, the entire charge concentrated in the combustion chamber is burned throughout the trench-shaped combustion chamber and thus the fuel is completely combusted. The location of the point of intersection of the axes of the output channels 12 determines the depth of the combustion chamber 5.

The invention eliminates the possibility of the formation of remote areas of air-fuel mixture concentration from the point of exit of the combustion products of the torch. Equivalent conditions are created for the combustion of the charge of the working mixture in the entire volume of the combustion chamber.

The elimination of local overheating of the engine body in the zone of functioning of the continuous burning torch is achieved by forming between the cylindrical shank and the cylindrical bore 15 in the case of the annular heat insulating gap.

The invention improves engine efficiency by localizing the ignition zone of the air-fuel mixture.

D- / 1

(Rig, 2

Claims (1)

AN INTERNAL COMBUSTION ROTARY ENGINE, comprising a housing with a trochoidal working cavity, three vertex rotors with combustion chambers made in its faces, and an additional combustion chamber placed on the housing and communicated with its working cavity by at least two channels with axes intersecting in the longitudinal plane of the engine, characterized in that, in order to increase efficiency by localizing the ignition zone of the air-fuel mixture, the point of intersection of the axes of the channels is located in the cavity of the combustion chamber otorrhea, and the latter walls are inclined to its base at an angle equal to the angle formed by the axes. (rig. 1