JPH10196384A - Gate valve combustion chamber type rotary engine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an internal combustion engine to generate smooth rotational motive power by forming an annular ring-shaped combustion space by a stator to cover a rotor, and partitioning this combustion space by operation of gate valves. SOLUTION: A stator 3 is assembled so as to cover the circumference of a rotor, and an annular ring-shaped or wheel-shaped combustion space is formed. Gate valves 4 to periodically open-close the combustion space according to a rotational phase of the passing timing of pistons 2 attached to the rotor 1, are installed in its stator 3, and the combustion space is partitioned by operation of these gate valves 4. Air injection valves 8 are also arranged to inject compressed air into an operation position just after passing through the gate valves 4 of the stator 3, and exhaust valves 7 to exhaust gas after an expansion stroke are arranged in positions just before the gate valves 4 of the stator 3. Therefore, an engine to directly generate smooth rotational motive power can be provided with a simple mechanism-structure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple rotary internal combustion engine that generates smooth rotational power.

[0002]

2. Description of the Related Art Conventional vane motors and Wankel engines generate rotational power by applying a volume change caused by eccentric rotation.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to realize an internal combustion engine that generates smooth rotational power with a simple structure.

[0004]

According to the present invention, in order to solve the above-mentioned problems, an annular or wheel-shaped combustion space is formed by a rotor and a stator covering the rotor, and a partition for periodically opening and closing the combustion space is provided. A cylinder (chamber) is created periodically by the operation of the valve, and a thrust is applied to a piston (or a blade) of a rotor by pressure generated in an expansion process by combustion to generate rotational power.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, the rotation of a rotor and a piston (or a blade) is linked to the opening and closing of a gate valve.
On the circumference line where the rotor rotates, expansion and exhaust are simultaneously performed on the front and back sides of the combustion chamber side and the back side of the piston, (A) air injection, fuel injection, (B) expansion by ignition, (C) exhaust preparation, (D) In the process of repeating the exhaust stroke, the pressure due to the expansion of (B) is transmitted as thrust to the piston (or blade) of the rotor to directly generate rotational power.

[0006]

【Example】

1 As shown in FIG. 2A, the stator 3 is assembled so as to cover the circumference of the rotor 1. A gate valve 4 that opens and closes in accordance with the rotation phase of a timing at which a piston (or blade) 2 attached to the rotor 1 passes is provided on the stator 3.
Attached. 2. An air injection valve 8 for injecting compressed air from an air compressor that operates coaxially with the above engine
At the operating position immediately after passing through the gate valve. 3. Attach a fuel injector and an ignition device that injects fuel following air injection to the stator or rotor piston. When these are mounted on the stator, the rotor piston can be a simple blade. 4 The exhaust valve 7 for discharging gas after the expansion stroke is connected to the stator 3
Installed immediately before the gate valve. 5 The gate valve 4, the air injection valve, the fuel injection valve 8, and the exhaust valve 7 are operated in the order of FIGS. 3 (A) to 3 (F), and the air compression stroke by another air compressor is included in the previous stage. It operates in conjunction with 4, as shown in FIG. 6 Fig. 2 showing two cylinders (chambers) on the circumference
In addition to the case of the two-chamber type gate valve arrangement as in (A), there are FIG. 2 (C) which constitutes only one cylinder, FIG. 2 (B) which constitutes three cylinders, etc. By reducing the ratio of the radius to the rotor radius, the expansion rate is set to an appropriate value such as 24. In conjunction with the number of cylinders, the number of combustion chambers, pistons and blades may be one or more. 7. If the structure is made to have a symmetry by smooth rotation with one cylinder type one chamber configuration, as shown in FIG.
By arranging a plurality of rotors and a stator (casing) with an appropriate phase difference, stable and powerful rotational power is generated. In FIG. 5, (A) shows two rotors 1 and two pistons 2 attached to one shaft.
The rotor 1 as shown in (A) is wrapped from below and above by dividing the stator 3 into (B) and (C), and connected by the mounting portion 14. As a result, the space between the stator 3 and the rotor 1 becomes a cylinder space. In the space where the hub that connects the rotor and the shaft rotates, the fins attached to the rotor rotate for heat radiation of the rotor. Or install a turbofan air compressor. FIGS. 6 and 7 show examples of the structure of a gate valve that opens and closes in synchronization with the rotor piston.

[0007]

The present invention has the effect of realizing an engine that directly produces smooth rotational power with a simple mechanism and structure.

[Brief description of the drawings]

FIG. 1 Engine stroke diagram

FIG. 2 is a structural diagram of an engine.

Fig. 3 Diagram of valve activity transition

FIG. 4 is a stroke diagram including an air compression pump.

FIG. 5 Concept of engine structure

FIG. 6: Example of gate valve structure: direct compression pressure push-up method

FIG. 7: Example of gate valve structure: cam drive system

[Explanation of symbols]

 1. Rotor 2. 2. rotor piston Stator 4. Gate valve 5. Opening state of gate valve 6. 6. Gate valve closed state 7. Exhaust valve operating state 8. Fuel injection valve and air injection valve or mixture injection valve Shaft 10. Gate valve case 11. Cam 12. Seal 13. Bearing mounting part 14. Stator mounting part 15. Air compression fan 16. Air intake 17. Compressed air outlet

Claims (13)

[Claims] 1. A cylinder formed by partitioning a toroidal or wheel-shaped closed space with a gate valve, wherein a rotor outer wall is covered in a U-shape with a tire-shaped stator inner wall. 2. An expansion / exhaust cycle rotary engine, wherein a gate valve attached to a stator is opened and closed in synchronization with a piston of a rotor. 3. A rotary engine having a simple expansion / exhaust stroke characterized by compressed air injection and fuel injection having an independent air compression stroke. 4. A gate valve characterized by a wedge-shaped cross-section which largely releases the expansion pressure in the circumferential direction by the principle of leverage and smoothly opens and closes the valve by the compression pressure of gas caused by the movement of the piston. 5. A piston having a built-in ignition device or a sub-combustion chamber and an ignition device characterized by combustion forming a flame front at a stable distance from the piston. 6. A gate valve having a cavity inside and a heat radiating fin, characterized in that temperature rise is suppressed. 7. A gate valve partially or entirely made of ceramics, characterized by improved heat resistance and wear resistance. 8. A piston made of ceramics, in part or in whole, characterized by improved heat resistance and wear resistance. 9. A rotor provided with fins or an air compressor for radiating heat to a space in which a hub connecting a shaft and a rotor rotates, characterized by suppressing a rise in temperature. 10. A concave rotor outer wall cross section and / or a concave stator inner wall cross section, wherein the cylinder cross section is circular, elliptical or convex. 11. A stator for wrapping a rotor in an annular shape, characterized by dividing and assembling a cylinder into a plurality of arcs. 12. An arrangement of a stator having a constant phase difference between gate valves of a plurality of parallel stators characterized by stabilization of rotational power, and a shaft having a phase difference between pistons of a plurality of rotors. 13. When the rotary engines are arranged in parallel, the opening rotation of the gate valve is characterized by an idling operation mechanism for operating a part of the engines.