US-12624656-B1 - Self-cooled rotary engine and pump

US12624656B1US 12624656 B1US12624656 B1US 12624656B1US-12624656-B1

Abstract

A rotary combustion engine includes a cylindrical housing with a plurality of internal cavities. Each of the internal cavities is a cylindrical segment of the housing, and a plurality of stationary blades are attached to its inner wall. The stationary blades extend inward to ride along the surface of a central shaft, contacting the shaft with a seal. Each cavity contains a rotor blade attached to the shaft and configured to drive the shaft. Each rotor blade extends outwardly to an inner curve of the housing with a sealing means. Each of the plurality of rotor blades has a reciprocating circular motion inside each of the cavities along the shaft between each of the stationary blades, thereby generating rotational power, delivering compressed rotational force, and provides cooling for the cavity.

Inventors

Ned M Ahdoot

Assignees

Ned M Ahdoot

Dates

Publication Date: 20260512
Application Date: 20250730

Claims (20)

1 . A rotary combustion engine comprising: a cylindrical housing comprising a curved inner wall, a first end plate, and a second end plate; a plurality of internal cavities within the housing; wherein each of the internal cavities comprises a cylindrical segment of the housing; a plurality of stationary blades attached to the inner wall, the stationary blades dividing an inner volume of the housing in pie-shaped divisions around 360-degrees of the housing; the stationary blades connected to the inner wall of the housing and extending inward to ride along the surface of a central shaft, the stationary blades forming a plurality of sealed cavities; wherein the central shaft is centered along a longitudinal axis of the housing along a longitudinal line of rotation of the housing; the outside surface of the shaft is sealed, and the shaft extends to a gear box outside of the housing; wherein the stationary blades contact the shaft with a seal configured to prevent fluid leakage between each of the cavities, and wherein multiple cavities are formed in the housing such that each cavity is formed and bounded by the inner curved walls of the housing, the shaft, and at least one of the stationary blades; wherein each cavity contains a rotor blade attached to the shaft and configured to drive the shaft, wherein each rotor blade extends outwardly to an inner curve of the housing; and wherein each of the plurality of rotor blades has a reciprocating circular motion inside each cavity along the shaft, thereby generating rotational power, delivering compressed rotational force, and provides cooling for the cavity; and wherein the shaft extends to a gear plate outside the housing, the gear plate comprising a gear cutout for engaging a back-and-forth transfer apparatus comprising a roller that travels along the gear plate.
2 . The rotary combustion engine of claim 1 wherein the shaft provides rotational power to a vehicle, wherein compression from rotational force of the rotor blade in a single cycle comprises bi-directional semi-rotation and retraction of the rotor blade, and wherein the shaft is connected to a gear box outside of the housing, with the gear box configured to deliver bidirectional force to each rotor blade.
3 . The rotary combustion engine of claim 2 wherein the gear box is configured to provide a reciprocating arc motion which drives each rotor blade back to its original position after combustion, compression, or cooling cycles.
4 . The rotary combustion engine of claim 3 wherein the shaft is turned in one direction by a semi-circular gear connecting a rotor blade handle to the shaft, and wherein an outer surface of the shaft includes semi-circular segments of gears alternating with smooth semi-circular segments.
5 . The rotary combustion engine of claim 4 wherein the teeth on the roller blade handle are configured to engage a semi-circular segment of gears to rotate it the shaft when the rotor blade begins a cycle, and engages a smooth semi-circular segment as the rotor blade returns to its original position.
6 . The rotary combustion engine of claim 5 further comprising a pair of circular rings configured to rotate around the shaft, the circular rings connected to one of the rotor blades to guide the circular rotation of the rotor blade within the cavity, and a gear box stationed outside the cavity to return the rotor blade to its original position after combustion.
7 . The rotary combustion engine of claim 1 wherein each rotor blade inside a cavity forms two sealed chambers with respect to the rotational direction of the inner shaft, the front of the stationary blade and the back of each rotor blade, and wherein the housing is provided with insertion ports from an outer surface to the curved inner walls, a pressured air valve, a fuel injection valve, and a multiplicity of spark plugs.
8 . The rotary combustion engine of claim 1 further comprising an exhaust gas diode valve, and wherein each rotor blade is configured such that forward motion urges in cool ambient air by forward motion of the rotor blade while the exhaust valve is closed.
9 . The rotary combustion engine of claim 1 wherein warmed air from a cavity is pushed out of the housing by each of the rotor blades before reaching the second stationary blade.
10 . The rotary combustion engine of claim 1 wherein ambient air from outside the housing fills the expanding space between the front of each rotor blade and the back of a stationary blade, thereby cooling the housing.
11 . The rotary combustion engine of claim 1 wherein multiple combustion cycles are active simultaneously in a 360-degree period of shaft rotation, and wherein each rotor blade gets pushed forward by ignition and is returned to its original position by the gear box.
12 . The rotary combustion engine of claim 1 wherein at the start of a suction/compression cycle, ambient air enters into the chamber, through a diode valve in between a stationary blade and a rotor blade by vacuum action, and wherein each rotor blade moves to its original start position, a diode valve opens allowing combustion products into the cavity to fill the space between a rotor blade and a stationary blade, and wherein pressurized combustion products are pushed out of opening.
13 . The rotary combustion engine of claim 1 wherein each of the cavities are configured to allow the engine to be cooled while a combustion cycle is in progress, wherein at the beginning of a cycle a vacuum is generated to move ambient air into an opening behind a rotor blade, wherein the ambient air is gets warmed up by the heat of the engine, and upon the return of a rotor blade, warmed air is pushed out through the same opening to cool the engine.
14 . The rotary engine of claim 1 wherein oil is injected from outside of the cavity into a small segment of the inner wall of the housing, and a brush like substance capable of absorbing oil is disposed on the inner wall.
15 . The rotary engine of claim 1 wherein timing is performed by a system of gears and an electromechanical device synchronized to the rotation of the shaft.
16 . The rotary engine of claim 15 wherein a circular plate is attached to the shaft, wherein edges of the plate having multiple small openings for timed divisions of a cycle related to the rotation of the shaft and a small opening along the circular plate to establish an arbitrary time to designate the beginning of a cycle.
17 . The rotary combustion engine of claim 1 wherein a 3-combustion engine housing completes a combustion cycle three times in every 120 degrees of rotation.
18 . The rotary combustion engine of claim 1 wherein each of the rotor blades is returned in a cavity to its original position within a 360-degree revolution of the shaft.
19 . The rotary combustion engine of claim 1 wherein a plurality of cavities is provided for a plurality of combustion cycles, and wherein multiple combustion cycles occur during a single 360 degree rotation of the shaft.
20 . The rotary combustion engine of claim 19 wherein the engine is configured to change the number of combustion cycles while the engine is in operation.

Description

FIELD OF THE INVENTION The present invention relates to rotary engines, and more particularly to a rotary engine having an improved housing, rotor blades, stationary blades, and 360 degree compression cycle BACKGROUND Rotary engines are known in the art, being internal combustion engines usually designed with a number of cylinders provided in a radial configuration. In their initial configuration, an engine's crankshaft remained stationary in operation, while the entire crankcase and its attached cylinders rotated about it as a unit. Rotary engines currently known in the art present several drawbacks, including inefficient combustion cavities, air and exhaust management and oiling systems. For these reasons it is an object of the present invention to provide a rotary combustion engine that has multiple internal cavities capable being configured in various shapes and which derive their power from a common shaft for compressing air and injecting compressed air into combustion cavities in a single cycle 360 degree rotation of the shaft. Another object of the invention is to provide a mechanism for addressing partial turning of the shaft by each rotor blade to achieve the 360 rotation by selective gearing, These and other objects are more fully described in the following specification and drawings. SUMMARY A rotary combustion engine includes a cylindrical housing comprising a curved inner wall, a first end plate, and a second end plate. A plurality of internal cavities is formed within the housing, wherein each of the internal cavities comprises a cylindrical segment of the housing. A plurality of stationary blades is attached to the inner wall. The stationary blades divide an inner volume of the housing in pie-shaped divisions around 360-degrees of the housing. The stationary blades connect to the inner wall of the housing and extend inward to ride along the surface of a central shaft. The stationary blades thereby forming a plurality of sealed cavities. The central shaft is centered along a longitudinal axis of the housing along a longitudinal line of rotation of the housing, and the outside surface of the shaft is sealed by sealing means. The stationary blades contact the shaft with a seal configured to prevent fluid leakage between each of the cavities, and wherein multiple cavities are formed in the housing such that each cavity is formed and bounded by the inner curved walls of the housing, the shaft, and at least one of the stationary blades. Each cavity contains a rotor blade attached to the shaft and configured to drive the shaft, wherein each rotor blade extends outwardly to an inner curve of the housing with a sealing means. And each of the plurality of rotor blades has a reciprocating circular motion inside each cavity along the shaft, thereby generating rotational power, delivering compressed rotational force, and provides cooling for the cavity. The shaft preferably provides rotational power to a vehicle, wherein compression from rotational force of the rotor blade in a single cycle comprises bi-directional semi-rotation and retraction of the rotor blade, and wherein the shaft is connected to a gear box outside of the housing, with the gear box configured to deliver bidirectional force to each rotor blade. The gear box may be configured to provide a reciprocating arc motion which drives each rotor blade back to its original position after combustion, compression, or cooling cycles. The shaft may be turned in one direction by a semi-circular gear connecting a rotor blade handle to the shaft, wherein an outer surface of the shaft includes semi-circular segments of gears alternating with smooth semi-circular segments. The teeth on the roller blade handle are configured to engage a semi-circular segment of gears to rotate it the shaft when the rotor blade begins a cycle, and engages a smooth semi-circular segment as the rotor blade returns to its original position. A pair of circular rings is configured to rotate around the shaft, and the circular rings are connected to one of the rotor blades to guide the circular rotation of the rotor blade within the cavity. A gear box stationed outside the cavity is provided to return the rotor blade to its original position after combustion. Each rotor blade inside a cavity forms two sealed chambers with respect to the rotational direction of the inner shaft, the front of the stationary blade, and the back of each rotor blade. The housing is provided with insertion ports from an outer surface to the curved inner walls, a pressured air valve, a fuel injection valve, and a multiplicity of spark plugs. An exhaust gas diode valve is preferably included, wherein each rotor blade is configured such that forward motion urges in cool ambient air by forward motion of the rotor blade while the exhaust valve is closed. Warmed air from a cavity is pushed out of the housing by each of the rotor blades before reaching the second stationary blade, and ambient air from outside t