RU102967U1 - ROTARY INTERNAL COMBUSTION ENGINE - Google Patents

Abstract

1. Rotary internal combustion engine containing a housing with inlet and outlet ports, a rotor with a retractable blade that follows the contour of the inner surface of the housing, a chamber of variable volume, limited by the inner surface of the housing and the outer surface of the rotor, characterized in that it contains a combustion chamber having a variable volume separated by valves from the chamber of variable volume, while the volume of the combustion chamber is changed by the piston through the screw connection in the fixed body; the body contains windows overlapped by flaps and valves; the dampers are controlled by traction under the influence of the camshaft; the combustion chamber inlet valve is controlled by the compressed mixture, and the exhaust valve is controlled by the camshaft cam, the rotor blade is controlled by a system of rollers that describe the contour of the variable volume chamber, the rotor is made in the form of a hollow cylinder with longitudinal slots for the entry of the blades at the time of passing under the concavity of the housing. ! 2. The engine according to claim 1, characterized in that the number of assemblies, including the variable volume chamber, blade, dampers, valves, can be any, depending on the required power.

Description

The utility model relates to engine building, in particular to rotary internal combustion engines. This technical solution allows to increase efficiency, power, speed and a lot of work from thermal energy. It can also be used as hydraulic vacuum pneumatic pumps.

The prior art rotary engine according to patent RU 2374464 C2 dated 10/15/2007 "Direct-acting rotary internal combustion engine", which contains a rotor in the form of two displaced relative to each other in diameter or several pairs of cams with a profile in the form of an arc of a circle from one and the plane on the other hand, a cylindrical body with guide holes for sliders of rectangular cross-section, covers of the motor housing, sliders with a rotary shoe and slide return springs. Four cavities of variable displacement of the engine are located between the sliders, the cams of the rotor and the motor housing. Sliders with a rotary shoe separate the compression cavity and the working stroke. The sliders are pressed against the rotor by springs through the rocker arms. In four cavities of variable engine volume, all four cycles of the cycle occur simultaneously. The disadvantage of this movement is the friction between the sliders and the rotor, the wear of the surfaces, a small working stroke, loss of displacement at high speeds due to the late fit of the sliders, which reduces the efficiency.

Also known is a rotary engine according to patent RU 2351779 C2 dated April 26, 2007, “Method of operation of a heat engine and its device”, which has sealed chambers of variable volume and an actuating element acting as a piston, includes four clock cycles of operation of an internal combustion engine, plus a cycle of injection into a chamber working stroke - combustion chamber - water. Water is injected after completion of the combustion process of the main part of the fuel mixture. The engine chambers are insulated from the external environment. Thermal insulation of sealed chambers is carried out by the method of a Duar vessel. The temperature differences of the inner surfaces of the chambers are equalized, for example, by coating their inner surfaces with the material having the highest thermal conductivity, for example, copper-based material. The temperature differences of the inner surfaces of the chambers are leveled using the “heat pipe” method. In the combustion chamber of a thermal rotary engine, nozzles for injecting water are installed. The engine consists of a fixed housing with an internal curved closed surface with inlet and outlet windows and a rotor. The rotor is mounted on the shaft and is made in the form of a frame with pistons, which are in constant contact with the rotor frame and with the inner curved surface of the housing. Between the inner curved surface of the housing and the surfaces of the pistons are formed chambers of variable volume. The inner closed surface of the body is made of arcs of conjugate circles of different radii. The engine is additionally equipped with sectors, bearings and end sealing caps. The sectors are fixed links controlling the movement of pistons. The pistons are fixed to the sectors and are in constant contact with the surface of the cage. The disadvantage of this movement is that a small stroke of not more than 90 degrees increases fuel consumption and reduces power.

The closest technical solution to the claimed utility model is a ROTARY INTERNAL COMBUSTION ENGINE according to patent RU 2386823 C1 of 02.09.2008., Which contains a housing with inlet and outlet windows and an oval inner working surface, a rotor with retractable working blades, a source of compressed air connected to it , fuel injector and turbocharger. The working blades form four compartments in the housing and sub-bladed chambers. The engine is equipped with an electro-pneumatic system for extending and fixing the blades in the grooves of the rotor, made of an electro-pneumatic spool. The spool valve communicates with the ducts a source of compressed air with rotor bladder chambers. On the lateral surfaces of the grooves of the rotor, recesses are made in which spring-loaded pads are mounted. The pads form chambers, which in turn are connected by ducts with a spool. The blades are made in the form of a package of plates moving relative to each other. There are at least three layers of plates in a packet. The middle plate is made with bilateral rectangular protrusions in the middle. On both sides of the middle plate there are two profiled plates made of a U-shaped shape spring-loaded relative to the protrusions. An additional window with a removable cover is made on the housing between the inlet and outlet windows. The main characteristics of this technical solution are: fixed body, offset to the rotor with inlet and outlet windows; rotor with a sliding blade;

chambers of variable volume, which are limited by the inner surface of the housing, the outer surface of the rotor and the blades. However, the prototype has the following disadvantages: a small stroke increases fuel consumption and reduces power, constant contact of the blade increases friction, which reduces the durability of the engine, and also reduces efficiency.

The claimed technical solution eliminates the above disadvantages, that is, it offers the creation of a rotary engine with an increase in stroke. Blade control and reduction of the number of blades, compression control, for the implementation of work from detonation. The technical problem of the claimed utility model:

heat energy to be maximally converted into mechanical, reduce friction, increase fuel economy, increase engine power, increase durability, and also obtain higher efficiency.

The problem is achieved by the following technical solution: increase the working stroke by reducing the number of blades to one; the use of a gas distribution mechanism, usually used in piston engines, the presence of a combustion chamber in the engine structure, which is separated from the variable chamber by valves, while one valve is controlled by a cam and the other is controlled by a compressed mixture.

The technical result is achieved due to the fact that the rotary internal combustion engine comprising a housing with inlet and outlet windows, a rotor with a retractable blade repeating the contour of the inner surface of the housing, a chamber of variable volume, limited by the inner surface of the housing and the outer surface of the rotor, contains a combustion chamber having a variable volume, separated by valves from the chamber of variable volume, while the volume of the combustion chamber is changed by the piston through a screw connection in a fixed housing; the housing contains windows overlapping by dampers and valves; shutters are controlled by traction under the influence of a camshaft; the inlet valve of the combustion chamber is controlled by a compressed mixture, and the exhaust valve is controlled by a camshaft cam; the rotor blade is controlled by a system of rollers describing the contour of a variable volume chamber; the rotor is made in the form of a hollow cylinder with longitudinal slots for the blades to enter at the moment of passage under the concavity of the body. The number of nodes, including a variable volume chamber, a blade, shutters, valves, can be any, depending on the required power.

The solution to the technical problem is achieved by the fact that, compared with the design of the prototype, reducing the number of blades increases the stroke. The blade is controlled outside the chamber of variable volume due to the fact that the thrust acts on the blade under the action of rollers describing the contour of the variable-volume chamber of the stationary body, which limits the gap with the walls of the body. The camera body of variable volume is characterized by the presence of a concave wall, the depth of concavity of which is determined by the course, size and location of the rotor. The engine design has a combustion chamber, separated by valves from the chamber of variable volume, having a variable volume, which is changed by the piston through a screw connection in a fixed housing. The use of detonation for engine operation will increase the efficiency and engine power due to the use of depleted fuel-air mixture in detonation.

The inventive internal combustion engine is characterized by the following features: a stationary body, offset to the rotor with inlet and outlet windows; rotor with a sliding blade; flaps; camshafts; a variable volume chamber is limited by the inner surface of the housing, the outer surface of the rotor and the shutters; combustion chamber with valves, piston controlling compression; spark plug.

The differences from the prototype are:

- additional windows: the case has four windows (the prototype has two);

- a combustion chamber, separated by valves from the chamber of variable volume (the prototype does not have a combustion chamber) having a variable volume, which is changed by the piston through a screw connection in a fixed housing;

- the body has two shutters and two valves (the prototype has no shutters, no valves);

- shutters are controlled through traction under the influence of a camshaft;

- the rotor blade is controlled by a system of rollers describing the contour of the variable volume chamber (in the prototype, the blade is pressed against the wall under the influence of an electro-pneumatic system);

- the rotor has a hollow cylinder design with longitudinal slots - for the blades to enter at the moment of passage under the concavity of the body.

The essence of the claimed utility model is explained by the images in figures 1, 2, 3, 4, 5, where:

1 - fixed body;

2 - contour of a variable chamber volume described by a roller;

3 - rotor;

4 - blade;

5 - thrust;

6 - roller;

7 - an inlet damper;

8 - inlet window;

9 - an inlet camshaft;

10 - exhaust window;

11 - exhaust valve;

12 - exhaust camshaft.

13 - inlet valve;

14 - exhaust valve;

15 - a piston;

16 - a spark plug;

17 - a combustion chamber;

18 - camera variable volume;

19 - traction.

Description of the operation of the claimed engine. The engine is started by a starter. The rotor (3), rotating, moves the blade (4), which draws the fuel-air mixture through the window (8). Approaching the displacement of the body, the blade (4) is pulled into the rotor (3), under the influence of the roller (6) communicating blades (4) through the rod (5) circuit (2) of the variable volume chamber (18), avoiding direct contact of the blade with the inner housing surface. Having passed under the displacement of the housing, the blade (4) extends, the camshaft (9) closes the inlet window (8) with a shutter (7), the air-fuel mixture is compressed. Under the influence of the blade (4), the compressed mixture opens the valve (13) into the combustion chamber (17), the valve closes under the influence of the compressed mixture and the spring. During the passage of the blade (4) under the combustion chamber (17), the mixture is ignited by the spark plug (16). The thrust of the blade opens the exhaust valve (14), starting a working cycle. Approaching the displacement of the housing, the camshaft (12) pushes the shutter (11), opening the outlet window (10). The inlet window (8) opens, and the valve (14) of the combustion chamber (17) closes after the passage of the blade (5) pushing the exhaust gases. The piston (15) increases compression, leading to detonation.

Effect: reduction of friction between the blade and the body, an increase in the duration of the stroke, work on detonation, which allows the claimed model of the engine to convert thermal energy as much as possible into mechanical;

reduce friction, increase fuel economy, engine power, increase durability, and also obtain higher efficiency.

Claims (2)

1. A rotary internal combustion engine comprising a housing with inlet and outlet windows, a rotor with a retractable blade that repeats the contour of the inner surface of the housing, a chamber of variable volume limited by the inner surface of the housing and the outer surface of the rotor, characterized in that it contains a combustion chamber having a variable volume separated by valves from the chamber of variable volume, while the volume of the combustion chamber is changed by the piston through a screw connection in a fixed housing; the housing contains windows overlapping by dampers and valves; shutters are controlled by traction under the influence of a camshaft; the inlet valve of the combustion chamber is controlled by a compressed mixture, and the exhaust valve is controlled by a camshaft cam, the rotor blade is controlled by a system of rollers describing the contour of the variable volume chamber, the rotor is made in the form of a hollow cylinder with longitudinal slots for the blades to enter when passing under the concavity of the housing. 2. The engine according to claim 1, characterized in that the number of nodes including a variable volume chamber, a blade, shutters, valves, can be any, depending on the required power.