Rotary engine rd-t/3"

IPC classes for russian patent Rotary engine rd-t/3" (RU 2170836):

F02B59 - Internal-combustion aspects of other reciprocating-piston engines with movable, e.g. oscillating, cylinders (with yieldable walls F02B0075380000)

F02B57/06 - Two-stroke engines or other engines with working-piston-controlled cylinder-charge admission or exhaust (with combustion space in centre of star F02B0057100000)

F02B53/12 - Ignition

F01C1/30 - ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES (combustion engines F02; internal-combustion aspects F02B0053000000, F02B0055000000; machines for liquids F03, F04)

F01C1/24 - ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES (combustion engines F02; internal-combustion aspects F02B0053000000, F02B0055000000; machines for liquids F03, F04)

F01C1/22 - ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES (combustion engines F02; internal-combustion aspects F02B0053000000, F02B0055000000; machines for liquids F03, F04)

F01C1/113 - ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES (combustion engines F02; internal-combustion aspects F02B0053000000, F02B0055000000; machines for liquids F03, F04)

F01C1/08 - ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES (combustion engines F02; internal-combustion aspects F02B0053000000, F02B0055000000; machines for liquids F03, F04)

F01C1/077 - ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES (combustion engines F02; internal-combustion aspects F02B0053000000, F02B0055000000; machines for liquids F03, F04)

F01C1/067 - ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES (combustion engines F02; internal-combustion aspects F02B0053000000, F02B0055000000; machines for liquids F03, F04)

F01C1/02 - ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES (combustion engines F02; internal-combustion aspects F02B0053000000, F02B0055000000; machines for liquids F03, F04)

F01C1 - ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES (combustion engines F02; internal-combustion aspects F02B0053000000, F02B0055000000; machines for liquids F03, F04)

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(57) Abstract:

The invention relates to engine, in particular for internal combustion engines, with the adjustment of the displacer in the working cavity. The invention allows to increase durability, reduce costs, improve the compactness and efficiency of the engine. A rotary engine includes a housing with side covers, made of the working chamber, triangular displacer, the drive mechanism with an eccentric offset and the shaft, a valveless system gas exchange, internal gear and external gear. The displacer is suspended on the eccentric offset through support rotation, is rigidly connected to the transverse beam and the output shaft and placed in the chamber ellipse form. Supports rotation interact with ellipsanime surfaces of the working chambers. The eccentric offset through support rotation is suspended on the crankshaft with the possibility of counter-rotating with gear ratio 1:1. The displacer has a rotation relative to the crankshaft with gear ratio 1: 3. 2 C.p. f-crystals, 6 ill.

The invention relates to engine, in particular for internal combustion engines, with the adjustment of the displacer in the early displacer, moving on epitrochoidal trajectory through the clock gear with internal toothing and with the simultaneous exercise of the functions of the oil pump (see and.with. The USSR 179118).

Known rotary piston machine with epitrochoidal surface of the displacer having a structural element of the rotor in contact with evenly fixed on the circumference of the body rollers (see and.with. USSR N 1315624).

The main disadvantage of a rotary piston internal combustion engine with multi-faceted rotor-displacer and gear, providing the movement of the faces on the tensile epitrochoid, in addition to low workability in the manufacturing process of the shell with a cavity epitrochoidal configuration is no seal between the parts of the combustion chamber containing the combustion products mix with the higher pressure of the gas in the part of the camera, which is removed from release to release, and with less pressure in the surrounding to release part of the combustion chamber. Inevitable when the bypass gases from areas of high pressure to an area of low and later release them into the atmosphere reduces the conversion efficiency of fuel combustion and leads to the loss of fuel due to premature wibree high temperature, exacerbating the impacts of seals on the surface of epitrochoid, which is associated with reduced resource rotary-piston internal combustion engines.

Known engine, comprising a housing having an oval cavity for triangular displacer and improve manufacturability, but do not have a significant impact on others, in this case, the inherent disadvantages not resolved since the invention of the engine (see and.with. N 131592).

The closest in technical essence to the claimed solution device is a rotary internal combustion engine described in the patent of the Russian Federation 2032809 and comprising a housing with side covers, made of the working chamber, triangular displacer, the drive mechanism with an eccentric offset and the shaft, a valveless system gas exchange, internal gear and external gear. However, the known engine has a high speed in comparison with the piston, which requires complexity and increase transmission vehicles because of the small ratio of the synchronizing mechanism and the need to reduce speed before the main gear. In addition, in the known solution complicated PTO drive wspomaganie move in contacting seal displacer, working in conditions of high thermal stress. This calls for making the engine more durable and expensive materials.

The invention solves the problem of increasing the durability, reduce costs, improve the compactness and efficiency of the engine.

The execution engine provides obtaining the claimed effects by placing heavily loaded structural elements outside of the zone of high thermal load and the reduction of contact stresses in contact in the cavity of the displacer elements with the exception of the bypass neotrabotannykh products of combustion and to improve the completeness of combustion of the mixture.

The problem is solved due to the fact that in a rotary engine, comprising a housing with side covers, made of the working chamber, triangular displacer, the drive mechanism with an eccentric offset and the shaft, a valveless system gas exchange, internal gear and external gear, the displacer is suspended on the eccentric offset through support rotation, is rigidly connected to the transverse beam and the output shaft and placed in the chamber ellipse shape, and the support rotation interact with ellipsanime surfaces of the working chambers.

Ego rotation with gear ratio 1: 1.

The displacer may have rotation relative to the crankshaft with gear ratio 1:3.

In Fig. 1 shows a General view of the engine, a longitudinal section; Fig. 2 - section plane a-a in Fig. 1; Fig. 3, 4 - scheme of the gas exchange and the provisions of the displacer in ellipses working cavity through the 30^orotation of the displacer of Fig. 5-6 - kinematic scheme of the device of the engine.

Rotary engine of Fig. 1 consists of a body with ellipses surface 2, in which the circumferential wall 3 and diametrically 4 with channels 5, form a working cavity 6 of the displacer 7, which is mounted on the neck 8 of the crankshaft by means of the eccentric bushing 9.

This sleeve is installed on the neck 8 in position, ensuring its rotation in the direction opposite to the direction of rotation of the crankshaft 10, and has a gear 11 external gearing. This gear interacts with the gear 12 of the gear train, the gear 13 which rolls on the gear 14 rigidly mounted on the crankshaft 10 and having engagement with the intermediate gear 15 (see scheme in Fig. 5), with the displacer 7 is rigidly connected to yoke 16 with rollers 17 in contact with ellipses surface 18 of the working cavity. The other end of the bar 16 is connected through the of lanval. At the end of the shaft 20 has a counterweight 22.

The engine works as follows.

In depicted in Fig. 2 the position of the displacer in sectors K, l, m, formed by faces of the displacer and the corresponding plot ellipses surface 2, both known gas-dynamic processes in the sector to the ignition and power stroke, in sector l - products of combustion and scavenging sector and in the sector m - intake of the combustible mixture and compress it.

After turning face database displacer to overlap the top of the B box 23 volume of the sector m is reduced, the mixture is compressed before passing the node B of the lower point with ellipses surface 2. In this position faces the database in a compressed mixture is spark plug mounted in the bore 24, the mixture is ignited, increase the pressure, the temperature of the mixture with the combustion products. Volume sector begins to increase upon further rotation of the displacer, is an extension of the mixture of combustion products and the first stroke of the rotor to offset the vertex D to the hole 25, after which it is opened past its peak D and the spent combustion gases go into the atmosphere at first due to pressure them, and then pushed out of priblizavanja. The top of the D to this moment opens a window 23 and repeat the operation cycle in the manner described. The work cycle of the engine, respectively, is repeated in other facets of the displacer. The intermediate position of the displacer when it is shown on Fig. 3, POS. I-IV, Fig, 4, POS. V-XII.

The coolant in the channels 5 of the walls 3, 4 reduces heat elliptic surfaces 2, 18, rollers 17 of the bar 16 and the gear transmission of the offset, and thermal tension of the material of the displacer.

The filling is completely purged of sectors of the new charge mixture without mixing it with the remnants of combustion products improves the efficiency of conversion of fuel energy into mechanical work.

The counterweight 22 improves the smoothness of rotation of the rotor, as in the known solutions.

In Fig. 6 of the drawing shows a kinematic diagram of a private form of execution of the claimed solution with rotation of the second end of the crankshaft 8, 10 in the bearing housing (not shown conventionally).

Not shown in Fig. 5 position details eccentrico-gear offset these positions Fig. 6.

1. Rotary engine, comprising a housing with side covers, made of the working chamber, trihedral the expulsion of the domestic and external gear, characterized in that the displacer is suspended on the eccentric offset through support rotation, is rigidly connected to the transverse beam and the output shaft and placed in the chamber ellipse shape, and the support rotation interact with ellipsanime surfaces of the working chambers.

2. Rotary engine under item 1, characterized in that the eccentric offset through support rotation is suspended on the crankshaft with the possibility of counter-rotating with gear ratio 1:1.

3. Rotary engine under item 1, characterized in that the displacer has rotation relative to the crankshaft with gear ratio 1:3.