RU133202U1 - ROTARY-VEINED INTERNAL COMBUSTION ENGINE - Google Patents

Abstract

1. A rotary vane internal combustion engine containing a hollow split cylindrical body, inside which there are two interacting rotor blocks with blades, forming four working chambers with a variable volume, and a synchronization mechanism, which is a synchronizing disk eccentrically located relative to the axis of rotation of the rotors, interacting with rollers of rotor blocks, characterized in that the disk has profiled counter curved cutouts for the rollers. 2. The engine according to claim 1, characterized in that a mechanism for correcting the eccentricity of the synchronizing disk is installed in the end cover of the housing, which has a support with an eccentrically offset hole for the disk shaft.

Description

The utility model relates to mechanical engineering, in particular to volumetric rotary machines, and can be used as pneumatic and hydraulic machines, internal and external combustion engines, the basis for jet engines, as well as devices for converting uniform rotational motion into uneven rotational.

Known rotary machine volumetric type (USSR author's certificate No. 973878, 1982), containing a hollow cylindrical body, inside which there are two pairs of blades, rigidly connected to two coaxial shafts and a mechanism for synchronizing the movement of the blades, allowing you to change the minimum volume. The disadvantage of such rotary machines is the insufficient perception of uneven loads by the synchronization mechanism due to the presence of uneven pulsating, reciprocating motion of its elements relative to each other. In addition, the synchronizers of these machines are complex, bulky, have a small resource and are unreliable.

Closest to the technical nature of the claimed device is a rotary vane machine (RF patent for IZ No. 2103519, 1998) with a cross-shaped synchronization mechanism containing a hollow cylindrical body with end caps, inside which two blades with rollers are installed, dividing the body cavity into four closed volumes , and eccentrically their axis of rotation, the synchronization mechanism in the form of a shaft with a monolithic spider The disadvantage of this machine is the insufficient perception of large shock loads in the synchronization mechanism and poor coordination of rotation of the two rotors, which reduces the efficiency of the engine due to increased friction forces and large shock loads caused by the lack of smooth synchronization of the working elements.

The objective of the utility model is to reduce frictional forces and shock loads by improving the synchronization of movement of the working elements when transmitting torque from the blades to the output shaft.

The problem is solved by a rotary-vane internal combustion engine containing a hollow detachable cylindrical body, inside which two interacting rotor blocks with blades are installed, forming four working chambers with a varying volume, and a synchronization mechanism, which is an eccentrically located synchronizing disk interacting with the rollers of the rotor blocks characterized in that the disk has a profile response curved cutouts for the rollers.

At the same time, a mechanism for correcting the eccentricity of the synchronizing disk, which has a support with an eccentrically offset hole for the disk shaft, is installed in the end cover of the housing.

Figure 1 shows a diagram of the device of a rotary vane engine, figure 2 is a section aa, and figure 3 is a section bb, where:

1. The blades

2. The side of the housing

3. The central part of the body

4. Rotors

5. Support shaft

6. Two-way lever

7. Cut out of a synchronizing disk

8. End cover

9. Caliper for eccentricity correction mechanism

10. Side cover

11. Gear Synchronizer

12. Output shaft

13. Sync disk

14. Finger

15. Roller

16. Spring

The cylindrical body consists of two parts. The lateral part of the housing 2 has a working cavity, inlet and outlet windows, and a fixed shaft. The central part of the housing 3 has a working cavity, inlet and outlet windows, a seat for the rotor shaft bearing, a cavity for the synchronizing mechanism and a seat for the end cover 8. Each rotor block consists of a single rotor shaft 4 with grooves for mounting the blades 1 and splines for mounting a double-sided lever 6 with rollers 15. On the one hand, two oppositely located blades 1. are mounted on the rotor. The blades are made in the form of spherical segments. On the other hand, a two-way lever with two oppositely spaced rollers is mounted on the shaft. Each roller in the two-sided lever is mounted using a finger 14 located in the eye of the lever.

Rotor blocks interact with a motion conversion mechanism. This mechanism synchronizes the movements of the rotors and converts their vibrational-rotational motion into a uniform rotation of the output shaft. The synchronization mechanism is a synchronizing disk 13 eccentrically located relative to the axis of rotation of the rotors with an eccentricity correction mechanism. The synchronizing disk has profile cutouts 7 for moving the rollers 15 and the shaft with the gear. The eccentricity correction mechanism consists of: a support 9 with an eccentric hole for the synchronizing disk and a lever for the drive; output shaft with gear 11 and a support cylinder; side cover 10. The synchronizing disk is installed in a support. The entire synchronization mechanism is located in the end cover of the motor housing 8.

The configuration of the cutouts of the synchronizing disk provides a constant linear contact of the rollers with the disk in the working area of the cutout, with minimal gaps with the currently inactive opposite zone. This leads to less wear of parts under alternating loads and increases reliability. The most favorable mutual arrangement of the rotor blocks and the synchronizing disk allows to achieve a larger change in the distance between the blades, i.e. greater degree of compression and expansion of gases. Which leads to an increase in engine efficiency. The reduction of peak and shock loads in the expansion stroke of the working gases is ensured by the curved profile of the cuts in the disk, while ensuring smooth synchronization.

The engine has a fuel nozzle, an electric spark plug and an oil system for lubricating sliding bearings and a synchronization mechanism.

The principle of the engine is as follows:

In the motor housing, the rotor blocks rotate in the same direction at a variable speed. They oscillate relative to each other and change the volume in the working chambers. These movements depend on their position in the case and are set by the synchronizing disk. The rotor rollers, moving in the housing, engage with the synchronizing disk and out of it in the middle part of the housing. Moving in the upper part of the body, in the cutouts of the disk, they move back and forth. The movement of the roller in the cutout of the disk from the outer radius of the disk to the center of its rotation corresponds to the compression stroke in the adjacent working chambers. The movement of the roller in the cutout of the disk from the center of rotation of the disk to its outer radius corresponds to the expansion cycle of the working gases in the adjacent working chambers. When located in the lower part of the housing, the rollers with a synchronizing disk do not have a connection. In this part of the housing, the exhaust gas and fresh air inlet successively pass through the appropriate windows. In the working chambers of the engine, a four-stroke cycle of the internal combustion engine occurs in a single revolution of the rotor. The mechanism for adjusting the eccentricity of the synchronizing disk eliminates the gap between the cutout of the disk and the roller located at top dead center. The gap occurs during operation during thermal expansions, as well as the wear of parts. Clearance is eliminated by turning the caliper in the end cap. In this case, the distance between the axis of rotation of the rotor blocks and the axis of rotation of the synchronizing disk changes.

The technical result is to increase the efficiency of the engine.

Claims (2)

1. Rotary-vane internal combustion engine containing a hollow detachable cylindrical body, inside which there are two interacting rotor blocks with blades, forming four working chambers with a variable volume, and a synchronization mechanism, which is a synchronizing disk eccentrically located relative to the axis of rotation of the rotors, interacting with rollers of rotor blocks, characterized in that the disk has profile reciprocal curved cutouts for the rollers. 2. The engine according to claim 1, characterized in that in the end cover of the housing there is a mechanism for adjusting the eccentricity of the synchronizing disk, having a caliper with an eccentrically offset hole for the disk shaft.

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