RU2421621C1 - Internal combustion engine - Google Patents

Abstract

FIELD: engines and pumps.

SUBSTANCE: engine rotor section mechanism transmits forces between running power shaft and rotor making sun-and-plane motion via reliable and efficient pin-wheel gearing.

EFFECT: higher reliability and efficiency of positive displacement ICE.

2 dwg

Description

The invention relates to the field of engineering, to internal combustion engines of volume displacement.

The Wankel volumetric displacement internal combustion engine rotary piston internal combustion engine [1] is known, in each section of which the forces between the eccentric shaft rotating relative to its own main axis and the trihedral rotor also planetary moving relative to the main shaft axis are transmitted through the shaft eccentric power bearing. The eccentric eccentricity is the only lever of the shaft, the number of revolutions of which is equal to the number of revolutions of the shaft.

In a rotary piston engine, the number of strokes of the stroke is equal to the shaft revolutions per unit time. This is better than in the section of a reciprocating internal combustion engine, in which one working stroke of the heated charge of the working fluid occurs in two turns of the eccentric, also rigidly mounted on the power shaft. Thus, in comparison with a section of a piston engine of the same volume of the working cavity, a rotary piston internal combustion engine is more efficient, since in one revolution of the shaft it is able to place twice as much working fluid in its combustion chamber and bring it into it twice as much heat and therefore generate twice as much mechanical energy.

From this point of view, the section of a rotary internal combustion engine of volume displacement [2], in which the eccentric is mechanically separated from the power shaft and rotatably relative to the main axis of the shaft mounted on an independent stator bearing, is even more effective. The transfer of forces between a rotating shaft and a planetary moving multifaceted rotor is carried out through a power gear transmission of internal gearing of the disks of the gears of the rotor and shaft. Such a scheme of the engine section mechanism allows for one revolution of its power shaft, depending on the ratio of the diameters of the program and power gears of the mechanism, to reproduce from 5 to 28 clock strokes, thereby significantly increasing the efficiency of the internal combustion engine.

In the section of this rotary engine, the forces are transmitted through the levers of four pairs of teeth at the same time, each of which with one side is rigidly fixed to the cylindrical generatrix of the drive of its power gear. However, there is still a small probability that the engine mechanism will produce adverse critical forces from the side of the gear disk, which is unprotected or insufficiently protected from vibrations of a structural element, for example, a shaft on which the gear is rigidly fixed, which can lead to the destruction of small gear teeth the side of the gear rigidly fixed on the cylindrical surface of the disk. This may cause engine damage. Therefore, when critical forces are likely to occur that destroy the teeth of power gears, the use of a power unit with gearing in the section of a rotary engine does not meet the requirements of a high degree of reliability of the engine mechanism.

In this case, the continuous mutual sliding of the gear teeth also creates increased friction resistance, which increases the energy loss in the power transmission.

The aim of the invention is to increase the reliability and efficiency of the internal combustion engine.

This goal is achieved by the fact that, according to the invention, when transmitting forces between the rotor and the shaft, a mechanical transmission is used that has greater than the gear transmission reliability of structural elements rigidly mounted on the monolithic shaft and monolithic rotor, which, like in the mechanisms of the piston and rotor - a piston engine, capable of reliably, without the risk of breakdown, transmit significant forces in both directions: both between the shaft and the rotor, and between the rotor and the shaft. Like the eccentrics of the eccentric shaft of the mechanisms of a piston and rotary piston engine, this mechanical transmission has a larger spatial value and mass of its elements than gear teeth. It also has a high degree of reliability of fixing these elements on the shaft and rotor of the section of the internal combustion engine.

The invention is illustrated in figure 1 and figure 2.

The section of the internal combustion engine consists of a stator 1, in the bearings of which rotatably relative to its own main axis a cylindrical shaft of the power shaft 2 of the section is installed. Also, in the stator bearing bearings, irrespective of the shaft 1, an eccentric 3 is mounted with the possibility of rotation relative to the main axis of the shaft in the own bearing support 3. On the outer cylindrical surface of the eccentric 3, a multifaceted prism of the rotor 4 is mounted coaxially and rotationally. Inside the rotor 4 coaxially and rigidly fixed program gear 5 with internal teeth, which is located outside and meshed with gear 6 with external teeth, coaxially with the main shaft axis rigidly fixed to e 1.

Also, on the rotor 4, a cylindrical ring of the disk 7 is coaxially and rigidly fixed, along the circumference of the plane of which through holes 8 are made, with axes parallel to the root axis of the shaft 2. On the shaft 2, a cylindrical ring of the disk 9 is coaxially and rigidly fixed, in which exactly the same number is made holes, as in the disk 7, in each of which one end of the cylindrical roller of the finger 10 is rigidly fixed.

Moreover, each roller of the finger 10 projects along the root axis of the shaft 2 in the direction of the larger diameter of the disk 7 of the rotor 4 and is freely placed one at a time in each hole 8 of the disk 7 of the rotor, the diameter of each of which exceeds the diameter of the cylinder of the roller of the finger 10. To reduce the friction of each roller finger 10 when rolling along the edge of the hole of the disk 7 with power transmission on each roller 10 with the possibility of rotation coaxially mounted cylindrical ring of the sleeve 11 of the rolling bearing. With their outer cylindrical surface, each sleeve 11 of the pin 10 is supported by the cylindrical surface of the edge of the hole 8 of the disk 7 of the rotor 4. Continuous and movable mechanical contact between the disks 7 and 9 is constantly maintained in each pair of the hole 8 of the disk 7 and the sleeve 11 of the pin of the pin 10 a disk 9, in which, during movement, the circumference of each hole 8 of the disk 7 rolls around the circular profile of the sleeve 11 of the roller 10 of the disk 9 synchronously with the rotational speed of the rotor 4 and the shaft 2.

Under the action of the expanding charge of the working fluid in the cycle stroke of its cycle in the engine section, the active planetary motion of the rotor 4 relative to the main axis of the power shaft 2 creates pushing forces with the cylindrical edges of the holes 8 of the disk 7 of the rotor 4 simultaneously on the cylindrical surfaces of several rollers of the fingers 10 (in FIG. 2 - three left rollers - when the rotor rotates clockwise) on the large lever of the disk 9 of the power shaft 2, forcing the shaft 2 to rotate in the same direction and at the same angular speed as the rotor 4. In other cycles the cycle of the working fluid in the section, with mechanical passivity of the rotor 3, the reverse transfer of forces from the shaft 2 through the disks 9 and 7 to the rotor 4 is provided by another group of rollers 10 (in figure 2, three right rollers).

In this embodiment, the mechanism of the section of the internal combustion engine of volume displacement in one revolution of the rotor, the shaft also makes one full revolution in the same direction. And with a seven-sided rotor (figure 1 and figure 2) for one revolution of the rotor in the section of the rotary engine there are seven full revolutions of the eccentric and seven clock strokes.

In the proposed technical solution in the mechanism of the section of a rotary internal combustion engine, the gear transmission is replaced by a more reliable pin drive, the degree of reliability of which is not significantly affected by factors whose action could lead to the destruction of the teeth of the power gears.

The reliability of this chain drive power transmission is ensured by the solidity and simplicity of the design of each of the disks 7 and 9, as well as the significant thickness of the diameter and the reliability of the fastening of the rollers of the fingers 10, which in the proposed technical solution due to the additional disk 9 have two supports on the parallel disks 9 of the shaft 2, along the axis of the shaft 2 located on both sides of the disk 7 of the rotor 4. Moreover, several rollers (up to 40% of the total number of rollers) are simultaneously involved in the transmission of forces, which ensures smooth running of the shaft and rotor. At the same time, the manufacture and assembly of the section mechanism is simpler and cheaper than using a pair of power gears.

In addition, compared to the gear transmission, the pin drive has a significantly low friction, high efficiency (up to 95%), high load capacity, low noise, operates in a wide range of rotational speeds, and has the ability to repeatedly start and stop.

Information sources

1. S. N. Bogdanov, M. M. Burenkov, I. E. Ivanov “Automotive engines”, Moscow, Engineering, 1987, pp. 356-358.

2. RF patent RU 2338883 C1 dated 03.05.2007, F01C 1/22, F01C 17/02, F02C 17/06, F16H 1/32.

Claims (1)

An internal combustion engine comprising at least one section consisting of a stator, inside of which a cylindrical shaft of the power shaft is mounted in bearing bearings rotatably relative to its root axis, and also installed in its own bearing support of the stator rotationally relative to the shaft main axis an eccentric, on the outer circumferential surface of which in the bearing support rotatably relative to the axis of the eccentric, a multifaceted prism of the rotor is installed, while With its volume on the rotor coaxially with it, the program gear of the rotor with internal teeth is rigidly fixed, which is located outside and meshed with the program gear of the stator with external teeth, coaxially and rigidly fixed to the stator coaxially with the main shaft axis, also coaxially and rigidly fixed to the rotor a circular annular disk of the rotor, and a circular annular disk of the shaft coaxially and rigidly fixed to the shaft, characterized in that, in order to increase reliability and efficiency, it is additionally equipped with cylindrical circular rollers fingers and an additional rigidly mounted shaft disk along the root axis of the shaft, the rotor disk is located between the shaft disks, in the planes of the shaft and rotor disks installed parallel to each other along the circumferences of the rings of these disks, the same number of through holes are made, the axes of which are parallel to the main axis, and in each hole of the shaft disk, one end of the finger is coaxially and rigidly fixed at one end, each of which protrudes parallel to the root axis of the plane of the shaft disk in the direction of the disk torus, freely placed in one hole of the rotor disk and its cylindrical surface rests on the circumference of the hole, the diameter of each hole of the rotor disk is larger than the diameter of each cylinder of the finger roller.

Images