RU199412U1 - ROTARY FOUR-STROKE INTERNAL COMBUSTION ENGINE "ROLAN" - Google Patents

Abstract

This utility model relates to mechanical engineering, in particular to rotary internal combustion engines, and is intended for use in land and air transport engineering. A rotary four-stroke internal combustion engine containing an oval rotor mounted centrally in a cylindrical stator housing, which is divided into A, B, C and D combustion chambers, the rotor is mounted on a shaft inside the stator, while in bearings located in the centers of the stator end caps, along the periphery of the body there are four equally spaced cylindrical recesses, coaxial with the central axis of the body, the cavity of which partially enters the cavity of the body; cylindrical gates with shafts are installed in the recesses, which divide the stator housing into chambers A, B, C and D; the ends of the shafts of the valves enter the bearings installed in the end covers of the stator; the bodies of the gates are segmentally truncated, while the gates are pressed against the outer surface of the rotor by means of spring devices; the inlet of the working fluid and the outlet of the exhaust gases occur through the holes in the end caps of the stator. The utility model is aimed at simplifying the design, increasing the reliability and power density of the engine. 2 fig.

Description

TECHNICAL FIELD OF USEFUL MODEL

This utility model relates to mechanical engineering, in particular to rotary internal combustion engines, and is intended for use in land and air transport engineering.

LEVEL OF TECHNOLOGY

From the existing prior art known rotary internal combustion engine "Eureka" containing a housing with a three-vertex epitrochoidal cavity, a shaft with an eccentric, an oval rotor consisting of a semi-shaft piston and a semi-shaft gas distributor, two cylindrical synchronizing gears, end caps, radial seal. Oil scraper rings are installed on the ends of the rotor, and on the periphery there are mechanical seals consisting of oval rings, equidistant to the radial surface of the rotor, and corrugated springs. The rings are made tapering in the radial direction and moving apart by means of corrugated springs to the periphery of the rotor. The radial seal has end crushers with corrugated springs that press the croutons against the end caps. The shaft is eccentric-crankshaft, the synchronizing gears have a diameter ratio of 2: 3, the smaller synchronizing gear is made with a gear hub and with a welded sleeve bearing and is installed on the crankshaft journal. (Description of the invention to the patent of the Russian Federation No. 2311548, IPC F02B 53/00, Published: 27.11.2007).

The difference lies in the many details that complicate the operation of the engine, which prevents its widespread use in practice.

Known is a rotary internal combustion engine containing a housing 1 with a two-vertex cavity, a rotor 2 made one-piece mainly in the form of a conchoid of a circle and freely mounted on the eccentric of the eccentric-crankshaft 3, passing through the center of the housing 1, through bearings 4, the front end cover 5 of the housing 1 and the rear end cover 6 of the housing 1 with outlet ports 7 and inlet ports 8 and two cylindrical synchronizing gears 9 and 10. The large synchronizing gear 9 is rigidly connected to the front end cover 5 of the housing, and the smaller synchronizing gear 10 is rigidly connected to the rotor 2. Diameter ratio synchronizing gears 9 and 10 - 2: 1. The rotary internal combustion engine also contains spark plugs 11 and 18, radial seals 12 made in the form of radial rectangular sealing plates 2, spring-loaded towards the rotor 2 installed in the cavity of the housing 1, rounded at one edge, end seals 13, 14, which can be made in in the form of rectangular plates bent in the form of semi-rings and installed with abutment of their ends in the radial seals 12. The rotary internal combustion engine can be equipped with seals 20 and 21 located between the radial seals 12 and end seals 16, 17 and rigidly attached to them. In addition, the rotary internal combustion engine is equipped with mechanical seals-partitions 15 and 20 of chambers A and B and an external supercharger (not shown). (Description of the utility model to RF patent No. 172052, IPC F02B 53/00, Published: 28.06.2017).

The difference lies in the many details that complicate the operation of the engine, which prevents its widespread use in practice.

The closest solution to the problem is a rotary engine with an oval rotor (12) mounted centrally in a cylindrical chamber (11). The cylindrical chamber (11) is divided into several combustion chambers (40-47) using sliding blades (48-53B). The rotor (12) is mounted on a partially hollow shaft (21), the shaft (21) passing through the corresponding side walls of the cylindrical chamber (11). The rotor (12) is provided with internal passages to allow the exhaust from the combustion chamber (40-47) through the internal passage and out through the partially hollow shaft (21) and to allow the incoming air to flow into the hollow part (19). ) inside the rotor (12) and through a suitable passage to an opening located on the outer periphery of the rotor (12). Thus, air and exhaust gases can pass into and out of the combustion chamber (40-47) through openings in the rotor (12), and the engine does not require external valves. The shaft (21) has a solid end that can be used as an output shaft to drive a flywheel or the like. (US Patent No. 5,372,107, published December 13, 1994, MKI F02B 53/00).

The difference between this technical solution is the complexity of the design, which reduces the reliability of the engine. Sliding blades experience significant variable lateral loads during the entire working process, which entails increased wear, misalignment, jamming, breakage. The work processes occurring in the engines themselves are also complex, which also negatively affects reliability.

USEFUL MODEL DISCLOSURE

The task to be solved by the claimed utility model is the creation of a rotary four-stroke engine, which makes it possible to increase the reliability of the internal combustion engine, improve the efficiency of the engine.

This problem is solved due to the fact that the claimed rotary four-stroke internal combustion engine contains an oval rotor mounted centrally in the cylindrical stator housing, which is divided into A, B, C and D combustion chambers, the rotor is mounted on a shaft inside the stator.

Differs from the prototype in that inside the stator in bearings 13 and 14, located in the centers of the end caps 11 12; along the periphery of the housing 1, there are four equally spaced cylindrical recesses, coaxial with the central axis of the housing 1, the cavity of which partially enters the cavity of the housing 1; cylindrical gates 6 with shafts 10 are installed in the recesses, which divide the stator housing into chambers A, B, C and D; the ends of the shafts 10 of the gates are included in the bearings 15 and 16 installed in the end caps 11 and 12 of the stator; the bodies of the gates b are segmentally truncated, while the gates 6 are pressed against the outer surface of the rotor 2 by means of spring devices 7; the inlet of the working fluid and the outlet of the exhaust gases occurs through holes 3 and 19 in the end caps 11 and 12 of the stator; the inner ribs 20 of the rotor 2 act as a working fluid blower, performing the functions of "pressurizing" and "blowing", cooling the rotor 2, heating the working fluid.

According to the conducted patent information research, the combination of known and new features of the proposed utility model was not found in the Sources of patent and scientific and technical information, which allows us to classify the feature as having novelty.

These features are essential and are interconnected with the formation of a stable set of essential features, sufficient to obtain the required technical result.

The present utility model is illustrated by a specific example of execution, which, however, is not the only possible one, but clearly demonstrates the possibility of achieving the required technical result.

BRIEF DESCRIPTION OF DRAWINGS

The essence of the utility model is illustrated by drawings, which show:

FIG. 1 is a diagram of a ROLAN four-stroke rotary internal combustion engine.

FIG. 2 - a diagram of a rotary engine in profile.

IMPLEMENTATION OF THE USEFUL MODEL

Rotary four-stroke internal combustion engine "ROLAN" includes the following parts:

1.stator casing with cylindrical inner cavity

2.hollow oval rotor

3.hole in the stator end cover

4. hole of the rotor 2 for exhaust gases through the annular collector 18

5.rotor hole 2 for the inlet of the working fluid into the working cavities

6.locks installed in cylindrical recesses of body 1

7.spring devices

8.spark plugs

9. rotor shaft

10.Shafts of valves

11 and 12 stator end caps

13 and 14 shaft bearings 9 in the stator end covers 15 and 16 shaft bearings 10 in the stator end covers

17. Lines of contact "gate-rotor"

18. ring manifold

19. hole in the stator end cover 12

20.fins in the inner cavity of the rotor 2

The essence of the technical solution lies in the fact that the rotary four-stroke internal combustion engine "ROLAN" contains a stator consisting of a housing 1 with a cylindrical inner cavity and end caps 11 and 12 (the front cover 11 is not conventionally shown in the diagram), a hollow oval rotor 2 with a shaft 9, rotating inside the stator in bearings 13 and 14 located in the centers of the end caps 11 and 12. Along the periphery of the housing 1, four cylindrical recesses are equidistant, coaxial with the central axis of the housing 1, the cavity of which partially enters the cavity of the housing 1. In the recesses, cylindrical gates are installed 6 with shafts 10. The ends of the shafts of the valves enter the bearings 15 and 16 installed in the end covers 11 and 12 of the stator. The bodies of the valves 6 are segmentally truncated. The gates 6 with the help of spring devices 7 are pressed by one of the edges to the outer surface of the rotor 2, creating a "gate-rotor" contact line 17. The gates 6, when the rotor 2 rotates, perform reciprocating movements, forming four independent working cavities of variable volume A, B, C, D. In the rotor 2, an opening 4 is made for exhausting exhaust gases through an annular collector 18 and an opening 19 in the stator end cover 12; there is an opening 5 for the inlet of the working fluid (working mixture). The ribs (radial partitions) 20 in the inner cavity of the rotor 2, being a blower of the working fluid, perform the functions of "pressurizing" and "blowing", cooling the rotor 2 and heating the working fluid.

The rotary engine works as follows. The working mixture or clean air (when fuel is injected directly into the combustion chamber), getting through hole 3 in the stator end cover 11 into the inner cavity of the rotor 2, and then through hole 5 of the rotor 2 into the working cavities (in the diagram, into cavity A), is exposed to when the rotor 2 rotates, it is compressed, then ignited from the spark plug 8 and the "working stroke" is made. With further rotation of the rotor 2, the exhaust gases are released through the hole 4 of the rotor 2, then the annular collector 18 and the hole 19 in the end cover 12 of the stator.

The utility model is aimed at simplifying the design, increasing the reliability and power density of the engine.

Ease of installation and commissioning without large financial and labor costs for design, installation and construction work.

Ease of maintenance, small dimensions, large motor resource, which significantly exceeds the resource of the best Russian and foreign engines.

Claims (1)

A rotary four-stroke internal combustion engine containing an oval rotor mounted centrally in a cylindrical stator housing, which is divided into A, B, C and D combustion chambers, the rotor is mounted on a shaft inside the stator, characterized in that bearings located in the centers of the end caps stator, along the periphery of the housing, four cylindrical recesses are equidistantly coaxial with the central axis of the housing, the cavity of which partially enters the cavity of the housing; cylindrical gates with shafts are installed in the grooves, which divide the stator housing into chambers A, B, C and D; the ends of the shafts of the valves enter the bearings installed in the end covers of the stator; the bodies of the gates are segmentally truncated, while the gates are pressed by one of the edges against the outer surface of the rotor with the help of spring devices; the inlet of the working fluid and the outlet of the exhaust gases occur through the holes in the end caps of the stator.

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