RU2606299C1 - Four-stroke rotary piston engine - Google Patents

Abstract

FIELD: engines.

SUBSTANCE: invention relates to engine construction. Four-stroke rotary piston engine includes, at least, one section. Section consists of housing with end covers and rotor with shaft. End cover is located on pistons position in cylinders upper dead point side and contains, at least, one combustion chamber, at least, one inlet valve and, at least, one exhaust valve. Rotor comprises, at least, one cylinder with piston and, at least, one crankshaft. Crankshaft is connected with cylinders pistons and with fixed gear. Per one rotor revolution in each cylinder passes, at least, one working cycle.

EFFECT: technical result is engine simplified design and reduced material consumption.

1 cl, 2 dwg

Description

FIELD OF TECHNOLOGY

The invention relates to the field of engineering, in particular to engine building, and can be used in transport, in industry and agriculture.

BACKGROUND

Known rotary piston engine Felix Wankel (see patent DE 1137901 B, F01C 19/04, 1962 (1)). The Wankel engine consists of a housing, the inner surface of which is made of an epitrochoid with inlet and outlet windows for gas exchange and a triangular rotor. The rotor itself is located on a shaft containing an eccentric and mounted on bearings located in the side covers of the stator [1].

The disadvantages of the Wankel rotary piston engine are as follows: connecting the rotor to the output shaft through an eccentric mechanism, being a characteristic feature of the Wankel RPD, causes pressure between the rubbing surfaces, which, combined with high temperature, leads to additional wear and heating of the engine. In this regard, there is an increased requirement for periodic oil changes. The resource with proper operation is large enough, but oil that is not replaced on time will inevitably lead to irreversible consequences, and the engine crashes.

Known currently used piston internal combustion engines, which are the most common ICE and the main type of automobile engine. Internal combustion engines convert the chemical energy of fuel into mechanical work, using liquid fuel (gasoline, diesel fuel) or natural gas as an energy source.

Depending on the type of fuel used, the following piston ICEs are distinguished: gasoline and diesel engines.

Alternative fuels used in internal combustion engines are natural gas, alcohol fuels - methanol and ethanol, hydrogen [2].

The technical disadvantages of these internal combustion engines are: a large mass of moving parts and a large number of engine parts; reciprocating movement of the piston, limiting the frequency of rotation and causing the appearance of unbalanced inertia forces and moments from them; low efficiency, since of all piston strokes only one is “working”, the rest are “idle”; high noise level; exhaust gas toxicity.

These technical solutions are taken as a prototype, as they have the maximum combination of essential features common with the invention.

OBJECT OF THE INVENTION AND TECHNICAL RESULT

The objective of the invention is to create an internal combustion engine more efficient and as close as possible to a piston internal combustion engine.

The technical result is a simplification of the design and material consumption of the internal combustion engine, reducing the mass of moving parts, reducing the number of parts.

SUMMARY OF THE INVENTION

The proposed invention, the solution of the above problem, the achievement of the goal and the required technical result is ensured by the fact that in an internal combustion engine containing at least one section consisting of a housing with end caps and a rotor with a shaft, according to the invention

an end cap located on the top dead center side of the position of the pistons in the cylinders comprises at least one combustion chamber, at least one inlet valve and at least one exhaust valve,

the rotor comprises at least one cylinder with a piston and at least one crankshaft connected to the pistons of the cylinders and to the fixed gear.

At the same time, in one revolution of the rotor, at least one working cycle passes in each cylinder.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is illustrated by drawings:

In FIG. 1 and 2 show a diagram of a single-cylinder section with four cylinder valves of a four-stroke rotary piston engine according to the invention, comprising:

building 1; end caps of the housing 2; rotor 3; rotor shaft 4; piston 5; piston pin 6; connecting rod 7; crankshaft 8; crankshaft gear 9; pinion shaft 10; fixed gear 11; intake valves 12; exhaust valves 13; combustion chamber 14.

Below the invention is described in more detail with reference to the drawings attached to the description, which show, by way of example, preferred, but not necessary, options for the possible implementation of the invention, the structural embodiment and operation of the internal combustion engine proposed in the invention.

DETAILED DESCRIPTION OF THE INVENTION

Distinctive features of the claimed internal combustion engines are:

circular rotation of the rotor;

the presence of at least one engine section;

the presence of an end cap containing at least one combustion chamber, at least one inlet valve and at least one exhaust valve;

the presence of a rotor containing at least one cylinder with a piston and at least one crankshaft associated with the pistons of the cylinders and with the fixed gear;

passing in one revolution of the rotor, in each cylinder at least one working cycle.

The operation of the internal combustion engine according to the invention is as follows and will be shown on the example of a four-stroke rotary piston engine (Fig. 1 and 2):

The four-stroke rotary piston engine (Fig. 1 and 2) is as follows. When the rotor 3 moves, the piston 5 begins to move towards the BDC, the volume increases, a vacuum is created. A combustible mixture enters the rarefaction zone through the intake valves 12, and suction begins. The intake valves 12 are closed. The piston 5 moves towards TDC and compresses the working mixture, the volume decreases, compression occurs. The compressed working mixture ignites, combustion occurs. The gases generated during the combustion process, expanding, perform work aimed at the rotation of the rotor 3. The gases create pressure on the piston 5. The piston 5, in turn, rotates the crankshaft through pin 6 and connecting rod 7. Gear 9 located on crankshaft 8 , through the pinion shaft 10 is repelled from the stationary gear 11 and gives a rotational motion to the rotor 3. The piston 5 starts moving towards the BDC, the volume increases, expansion begins. The rotor 3 continues to rotate, the exhaust valves 13 open, through which the removal of combustion products. The piston 5 begins to move towards TDC, the volume begins to decrease. Duty cycle completed.

Thus, the internal combustion engine according to the invention provides the ability to achieve the desired technical result, namely, simplifying the design and material consumption by reducing the number of parts, their mass and increasing its compactness.

Individual parts and components of the inventive internal combustion engine can be manufactured using materials and technologies known in the engineering industry.

Specific dimensions and individual design features of individual parts and assemblies can be selected from standard sizes and standards of industrial engineering.

INFORMATION SOURCES

1. DE 1137901 B, F01C 19/04, 1962 (1).

2.http: //systemsauto.ru/engine/internal_combustion_engine.html

Claims (1)

A four-stroke rotary piston engine containing at least one section consisting of a housing with end caps and a rotor with a shaft, characterized in that the end cap located on the top dead center side of the pistons in the cylinders contains at least one combustion chamber, at least one inlet valve and at least one exhaust valve, the rotor contains at least one cylinder with a piston and at least one crankshaft connected to the pistons of the cylinders and with the fixed gear, for one versa rotor in each cylinder passes through at least one working cycle.

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