WO2015072956A1

WO2015072956A1 - Rotary piston internal combustion engine

Info

Publication number: WO2015072956A1
Application number: PCT/UA2014/000086
Authority: WO
Inventors: Александр Федорович МАЛЕНКО
Original assignee: Александр Федорович МАЛЕНКО
Priority date: 2013-11-18
Filing date: 2014-07-28
Publication date: 2015-05-21

Abstract

A rotary piston internal combustion engine containing a stator having an orbital curvilinear path provided on the inner side thereof. A rotor, capable of rotating relative to the stator, is positioned in the stator. Working chambers are positioned symmetrically relative to the axis of rotation of the rotor. Each working chamber is formed by the lateral walls of a rectangular U-shaped channel provided in the rotor, and by an inlet flange and by an outlet flange which are affixed to the stator. The working chambers are provided symmetrically relative to the axis of rotation of the rotor. A piston, connected to a supporting roller which interacts with the orbital curvilinear path, is provided in each working chamber. The working chambers and the pistons are rectangular in shape. The claimed engine has increased efficiency and reliability.

Description

Rotary piston internal combustion engine

FIELD OF TECHNOLOGY

The invention relates to mechanical engineering, in particular to the design of a rotary piston internal combustion engine.

BACKGROUND OF THE INVENTION

A known internal combustion engine comprising a rotatably mounted rim with orbital treadmills in the form of a T-shaped groove of an oval or other, closed and centrally symmetric configuration, a non-rotating block of cylinder radially converging to each other cylinder combustion chambers with pistons installed in them and covered by these treadmills connecting rods pivotally connected to them and with single-arm levers mounted on the cylinder block with connecting rollers at the ends. The pressure rollers are in contact with the treadmills of the T-slot. The rotating cylinder block is installed with the possibility of controlled displacement from the axis of rotation of the rim. To carry out the indicated displacement, the engine is equipped with means for this displacement. The number of engine cylinders is not paired and greater than the number of ridges (see Eurasian patent JN 011059).

The disadvantage of the design of this engine is the low efficiency.

Also known is an internal combustion engine comprising at least two radial cylinders axially located in the same plane and which form a common combustion chamber. A piston is located in each radial cylinder. Each piston interacts with a cam profile. The motor also comprises a rotary rotor connected to the shaft (see international application WO 01/77494).

This engine also has a low efficiency.

Closest to the claimed invention is a rotary internal combustion engine comprising a fixed housing with a rotor located therein, rotor working cylinders. In each of The rotor working cylinders are equipped with a piston equipped with a connecting rod and a supporting roller, which interacts with a curved supporting surface mounted on the housing. The number of cylinders is paired. The rotor working cylinders are offset in the plane of rotation of the rotor from the center of rotation of the rotor by an equal distance. For each working cylinder, the working cylinder opposite to it, relative to the center of rotation of the rotor, is located centrally symmetrically. The axes of the cylinders are parallel. For each pair of opposing cylinders, two levers and one rod are installed. The levers are fixed on the rotor by fixed hinges. Each lever with one fixed hinge is connected to the connecting rod of the corresponding working cylinder, and the second movable hinge is connected to the lever of the opposite working cylinder with a rod. The combustion chamber of the working cylinder and the inlet-outlet channel have a common space (see the patent of the Russian Federation Ν ° 2424473 for an invention).

The design of this rotary engine is selected as a prototype.

The prototype and the claimed invention have the following common features:

- fixed stator (in the prototype it is called "fixed body");

- orbitally curved treadmill (the prototype is called "curved supporting surface");

- a rotor located inside the stator, capable of rotating relative to the stator;

- working chambers (in the prototype - chambers of working cylinders);

- working chambers are located symmetrically relative to the axis of rotation of the rotor;

- a piston is located in each working chamber;

- each piston is connected to a support roller;

- the reference roller interacts with the orbitally curved track.

The prototype has the following disadvantages. 1. The low upper limit of engine speed, due to the fact that the cylinders are located from the axis of rotation at a considerable distance, and the thrust that connects the levers of the support rollers, opposite the cylinders, does not allow placing the working cylinders close to the center of rotation of the rotor.

2. The working stroke of the pistons, opposite cylinders, is not the same, the rotor is very unbalanced due to the fact that the levers of the support rollers and the opposite cylinders are not the same, the shoulders of the levers are different and, as a result, the trajectories of the bearings of the opposite rollers are different. In general, the rotor of the engine has a design that is not symmetrical about the center of rotation, which makes balancing the entire rotor difficult.

3. Low efficiency and engine power, since the inlet-outlet channel and the combustion chamber of the working cylinder have a common space, as a result of which the high pressure that is formed in the combustion chamber during the working stroke is transmitted through the inlet-outlet channel to the locking surface, as a result of which between the contact a surface forms a gap and part of the working gases breaks through it from the combustion chamber to the outside.

SUMMARY OF THE INVENTION

The basis of the claimed invention is the task to create an improved design of a rotary piston internal combustion engine, in which, by another design:

- working chambers;

- channel "inlet-outlet", as well as the geometric shape of the working chambers and pistons to provide an increase in efficiency.

The problem is solved in the design of a rotary piston internal combustion engine containing a stator, on the inside of which an orbitally curved treadmill is made, a rotor located inside the stator capable of rotating relative to the stator, working chambers located symmetrically relative to the axis of rotation of the rotor, in each of which located piston connected to the reference a roller interacting with an orbitally curved treadmill, in that, unlike the prototype, each working chamber is formed by the side walls of a rectangular U-shaped channel made in the rotor and inlet and outlet cheeks mounted on the stator, while in the inlet and outlet cheeks windows are made, and the working chambers and pistons are rectangular.

Increasing the efficiency is provided by facilitating and simplifying the filling of each working chamber with a working fluid (gasoline, diesel fuel, etc.). This ensures reliable operation by eliminating the valves of the gas distribution mechanism and simplifying the design of the rotary piston internal combustion engine. This significantly reduces the cost of the rotary piston engine.

BRIEF DESCRIPTION OF THE DRAWINGS

The rotary piston internal combustion engine is shown in the drawing, where:

FIG. 1 is a cross section;

FIG. 2 - longitudinal section;

FIG. 3 - projection of the inlet and outlet cheeks superimposed on each other;

FIG. 4 — view of the inlet cheek;

FIG. 5 is a view of a discharge cheek.

The rotary piston internal combustion engine contains a stator 1, on the inside of which an orbital running curved track 10 is made. Inside the stator 1 there is a rotor 4 mounted on a shaft 5 and fixed with a key 12. In the body of the rotor 4 there are made U-shaped rectangular channels 7. B each U-shaped rectangular channel 7 has a rectangular piston 2 connected to the rod 3. A support roller 8 is fixed at the other end of the rod 3.

On the shaft 5 with the help of bearings 19, the cheeks are fixed: inlet 14 and outlet 15.

Inlet cheeks 14 have inlet windows 20 with nozzles 16. In the exhaust cheeks 15, the exhaust windows 21 are made with nozzles 17.

The inlet 14 and outlet 15 cheeks are attached to the stator 1 by means of coupling bolts 13, between which a spacer sleeve 22 is placed. The bolts 13 are installed in the through holes 9, which are made in the cheeks 14 and 15.

In each U-shaped rectangular channel 7 fixed thrust-guide sleeve 6.

A flange 18 is fixed to the shaft 5.

The rotary piston internal combustion engine is equipped with working chambers (individual positions not shown), each of which is formed by the side walls of the U-shaped rectangular channel 7 (see Fig. 1) and inlet 14 and outlet 15 cheeks. Stator I is mounted on frame I.

MODE FOR CARRYING OUT THE INVENTION

The rotary piston internal combustion engine operates in the following order.

When the rotor 4 rotates, the roller 8 moves along the orbital treadmill 10, while the movement of the rectangular piston 2 will be in two directions: firstly, the movement radially from R-1 to R-2 and R-2A (see Fig. 3), secondly, in a circle with the rotor 4 relative to the inlet 14 and the outlet 15 cheeks.

With this movement of the rectangular piston 2, the windows 20 on the inlet cheek 14 will coincide with the U-shaped rectangular channel 7 at the moment when the rectangular piston 2 will move from the top dead center (TDC) to the bottom dead center (BDC). This will ensure that the working chamber is filled with the working mixture and will correspond to the angle of rotation of the rotor 4 by the angle φ-1 plus φ-2 (see Fig. 3).

When, when the rotor 4 is rotated through the angle cp-3 plus φ-4, the rectangular piston 2 moves in the rotor 4 from R-2 to R-1 - this is the TDC and with this movement of the rectangular piston 2 the inlet 20 and outlet 21 windows will not be opposite working chamber, this will lead to compression of the working mixture. A similar process occurs in the area of rotation of the rotor 4 at an angle φ-5.

In the zone of rotation of the rotor 4 at an angle of φ-b plus φ-7, the outlet windows 21 of the cheeks 15 will coincide with the working chamber and the gases will exit through the outlet windows 21,

The described cycle is repeated similarly in each working chamber.

INDUSTRIAL APPLICABILITY

The inventive rotary piston internal combustion engine can be manufactured at any plant specializing in the production of internal combustion engines for cars, tractors and other equipment.

Claims

CLAIM

A rotary piston internal combustion engine containing a stator, on the inside of which an orbitally curved treadmill is made, a rotor located inside the stator capable of rotating relative to the stator, working chambers located symmetrically with respect to the axis of rotation of the rotor, in each of which there is a piston connected to supporting roller interacting with an orbitally curved treadmill, characterized in that each working chamber is formed by the side walls of a rectangular U-shape th channel formed in the rotor and the inlet and outlet cheeks, fixed to the stator, wherein in the inlet and exhaust windows cheeks formed, and the working chambers and pistons are of a rectangular shape.