Topological rotary engine

Patent metadata

Field	Value
Publication number	US-11713710-B2
Application number	US-202017603588-A
Country	US
Kind code	B2
Filing date	Aug 5, 2020
Priority date	Jul 29, 2020
Publication date	Aug 1, 2023
Grant date	Aug 1, 2023

Abstract

A topological rotary engine includes a first transmission mechanism, a second transmission mechanism, a valve mechanism, a rotor, and a cylinder. The rotor is arranged in an inner chamber of the cylinder. A cross section of the rotor is a curved-side topological polygon having n sides. A cross section of the inner chamber of cylinder is a curved-side topological polygon having n+1 sides, and n is an even number greater than or equal to 4. An outer topological curved surface of the rotor is meshed with an inner topological curved surface of the cylinder. The rotor reversely revolves around an axis of the cylinder with an eccentricity as a radius while rotating, and divides the cylinder into n+1 independent chambers. The cylinder is provided with n+1 fuel injection nozzles and n+1 spark plugs, which cooperate with the rotor and the valve mechanism.

First claim

What is claimed is:

1. A topological rotary engine, comprising a first transmission mechanism, a second transmission mechanism, a valve mechanism, a rotor, and a cylinder arranged in the topological rotary engine, wherein the rotor is arranged in an inner chamber of the cylinder, a cross section of the rotor is a curved-side topological polygon having n sides, a cross section of the inner chamber of the cylinder is a curved-side topological polygon having n+1 sides, and n is an even number greater than or equal to 4;
an outer topological curved surface of the rotor is meshed with an inner topological curved surface of the cylinder;
the rotor reversely revolves around an axis of the cylinder with an eccentricity as a radius while rotating, and divides the cylinder into n+1 independent chambers; when the rotor rotates for one cycle, each of the n+1 chambers successively completes n/2 times of air intake, compression, work and air exhaust, a revolution speed of the rotor is n times a rotation speed of the rotor, and the revolution speed of the rotor is identical to an engine output speed;
the cylinder has n+1 fuel injection nozzles and n+1 spark plugs, the fuel injection nozzles and the spark plugs cooperate with the rotor and the valve mechanism to keep a fuel to combust and work in the chamber, and output power externally through the first transmission mechanism and the second transmission mechanism,
wherein a radius of a round chamfer of the cross section of the rotor is equal to a radius of a round chamfer of the cross section of the inner chamber of the cylinder,
wherein the first transmission mechanism comprises a rotor transmission shaft, a first bearing, a second bearing, a third bearing, a fourth bearing, a first output shaft, a second output shaft, a first counterweight plate, a second counterweight plate, a first output shaft support base, and a second output shaft support base, both ends of the rotor transmission shaft are respectively connected to the first bearing and the third bearing, the first bearing is arranged in the first counterweight plate, and the third bearing is provided in the second counterweight plate; one end of the first counterweight plate is provided with the first output shaft, and the first output shaft sequentially passes through the second bearing and a first bearing positioning cover that are arranged in the first output shaft support base; one end of the second counterweight plate is provided with the second output shaft, and the second output shaft sequentially passes through the fourth bearing and a second bearing positioning cover that are arranged in the second output shaft support base;
the second transmission mechanism comprises a first internal gear, a first external gear, a first internal gear support base, a second internal gear, a second external gear, and a second internal gear support base; the first external gear and the second external gear are respectively fastened and assembled on the both ends of the rotor transmission shaft; the first external gear is meshed with the first internal gear, and the first internal gear is disposed on the first internal gear support base; the second external gear is meshed with the second internal gear, and the second internal gear is disposed on the second internal gear support base;
the valve mechanism comprises a first valve plate, a second valve plate, and a valve chamber; the first valve plate and the second valve plate are symmetrically arranged on both sides of the cylinder, and respectively slidably cooperate with the both end surfaces of the rotor.

2. The topological rotary engine according to claim 1 , wherein a radius of a circumscribed circle of the inner chamber of the cylinder is a difference between a radius of a circumscribed circle of the rotor and the eccentricity.

3. The topological rotary engine according to claim 1 , wherein a gear ratio of the first internal gear to the first external gear is (n+1):n; and a gear ratio of the second internal gear to the second external gear is (n+1):n.

4. The topological rotary engine according to claim 1 , wherein the first valve plate and the second valve plate have a same structure, and each of the first valve plate and the second valve plate is provided with the valve chamber therein; the second valve plate is provided with a plurality of valve grooves in an elongated-hole shape along a circumferential direction, a number of the valve grooves corresponds to a number of the chamber in the cylinder; the valve chamber communicates with the chamber in the cylinder through the valve groove and the intake and exhaust channel.

5. The topological rotary engine according to claim 4 , wherein the first valve plate is provided with a first vent hole, and the first vent hole is configured for the valve chamber in the first valve plate to communicate with an external environment; the second valve plate is provided with a second vent hole, and the second vent hole is configured for the valve chamber in the second valve plate to communicate with the external environment.

6. The topological rotary engine according to claim 1 , wherein the rotor is provided with n/2 pairs of intake and exhaust channels, and a number of pairs of the intake and exhaust channels is ½ of a number of topological sides of the cross section of the rotor.

7. The topological rotary engine according to claim 6 , wherein the rotor comprises a first intake and exhaust channel, a second intake and exhaust channel, a third intake and exhaust channel, and a fourth intake and exhaust channel; each of the first intake and exhaust channel, the second intake and exhaust channel, the third intake and exhaust channel, and the fourth intake and exhaust channel is L-shaped structures, and has two ends respectively arranged on an end surface of the rotor and a top surface of a round chamfer of the rotor.

8. The topological rotary engine according to claim 7 , wherein the first intake and exhaust channel and the second intake and exhaust channel are symmetrically arranged along an axis of rotor; the third intake and exhaust channel and the fourth intake and exhaust channel are symmetrically arranged along the axis of rotor, the first intake and exhaust channel and the fourth intake and exhaust channel are symmetrically arranged at both ends of the rotor; and the second intake and exhaust channel and the third intake and exhaust channel are symmetrically arranged at the both ends of the rotor.

Assignees

• Univ Huazhong Science Tech

Inventors

• Qu Jinping

Classifications

• F02B55/02 Primary

  Pistons · CPC title

• F01C1/22

  of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth- equivalents than the outer member · CPC title

• F01C21/18

  Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet · CPC title

• F02B53/10

  Fuel supply; Introducing fuel to combustion space · CPC title

• F02B53/12

  Ignition · CPC title