CN111441865B - Rotary piston gas turbine engine - Google Patents
Rotary piston gas turbine engine Download PDFInfo
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- CN111441865B CN111441865B CN202010271917.0A CN202010271917A CN111441865B CN 111441865 B CN111441865 B CN 111441865B CN 202010271917 A CN202010271917 A CN 202010271917A CN 111441865 B CN111441865 B CN 111441865B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
- F02C3/055—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor the compressor being of the positive-displacement type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/14—Gas-turbine plants characterised by the use of combustion products as the working fluid characterised by the arrangement of the combustion chamber in the plant
- F02C3/16—Gas-turbine plants characterised by the use of combustion products as the working fluid characterised by the arrangement of the combustion chamber in the plant the combustion chambers being formed at least partly in the turbine rotor or in an other rotating part of the plant
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
A rotary piston gas turbine engine. The device comprises a shell consisting of a cylinder body (1), a front end cover (2) and a rear end cover (3); the air compression rotor (4) and the gas turbine rotor (5) are arranged on a main shaft (6), and the main shaft is arranged in the main bearings of the front end cover and the rear end cover; n combustion chambers (7) which are uniformly distributed are arranged on the gas wheel rotor (5); n uniformly distributed cylinder chambers (8) are arranged on the air compression rotor (4), N pistons (9) are embedded, and two ends of a piston pin (11) extend into piston pin movement rails (18) arranged on the front end cover and the rear end cover; the air compressing rotor and the gas turbine rotor do concentric rotation movement at the same speed; the outer diameters of the gas compressing rotor (4) and the gas turbine rotor (5) are in sliding clearance contact with the cylinder with the same diameter as the inner diameter of the cylinder body (1); in the technology of the present invention; the compressed gas and the combustion gas are completely separated, which is beneficial to full combustion and overcomes the defects of the prior internal combustion engine technology; the invention has the advantages of simple structure, high mechanical efficiency, stable operation and small vibration and noise.
Description
The technical field is as follows:
the invention relates to a rotary piston gas turbine engine, belonging to an internal combustion engine.
Background art:
the principle of the existing reciprocating piston internal combustion engine of the positive displacement crank link mechanism is that after the pressure of mixed combustible gas (or compressed gas) is increased by means of the periodic change of the volume of a sealed working chamber, an ignition system (or oil injection system) ignites expansion work to push the crank link mechanism, and the engine capable of self reciprocating and circulating work is realized; the method for realizing the principle is that the starter drives the crankshaft to rotate, the connecting rod links the crankshaft and the piston to reciprocate periodically in the cylinder, and the high-pressure combustible medium expands after deflagration to push the crank-connecting rod mechanism to realize the reciprocating cycle work of the piston of the engine. The inventor has three patents with patent numbers: the publications authorized in 5/14/2003, 7/4/2007 and 06/05/2018 of ZL00126651.9, ZL200410023372.2 and ZL201610158767.6, respectively, are related to the background art of the present invention. The patent No. ZL00126651.9 discloses a rotor engine with a double-arc curve profile formed by two large and small intersecting arcs on the inner wall surface of a cylinder body, wherein in the working process, a rotor and a blade respectively rotate eccentrically by taking the centers of the two intersecting arcs as rotation centers. The patent number is ZL200410023372.2, it is a cylinder body whose inner wall surface is formed by circular arc shaped line, the rotor and N vanes which are uniformly distributed and installed in the rotor channel and have circular arc top surface with corresponding diameter are surrounded therein; the fixed rotating centers of the rotor and the blades are offset; the rotor drives the blades to do rotating motion with the same rotating speed but without concentricity, and the blades, the rotor and the stator are provided with corresponding connecting structures which can meet the required relative motion and ensure the required sealing; the patent number is ZL201610158767.6, it inlays N pistons and N piston pins on the rotor, along with the rotor does the rotation of the same speed but not concentric, in the rotor rotation process, the piston pin both ends receive the piston pin movement orbit restriction that sets up on the stator left and right ends lid, make the piston do the reciprocating telescopic movement in the cylinder body, rotor, piston pin movement orbit have can satisfy the corresponding movement requirement that they need and guarantee the corresponding connection structure that needs the seal among them; further analysis and research show that the combustion chamber of the patent technology cannot be separated from the top of the piston, deflagration high-pressure fuel gas acts on the top of the piston at the top dead center, deflagration expansion force borne by the top of the piston is transmitted to a force bearing cam on a main shaft through a piston pin, a thrust rod and a thrust head, and the structure can counteract partial energy to block patent popularization. The existing reciprocating piston engine with a positive displacement crank-connecting rod mechanism has the defects of large volume, complex mechanism, high manufacturing cost, more easily damaged parts, low mechanical efficiency and the like.
The invention content is as follows:
the object of the present invention is to overcome the above drawbacks: the invention provides a gas turbine which can meet the original 201610158767.6 patent task of the inventor, but has a correspondingly simplified structure, and a gas rotor and a gas turbine rotor are separated by a cylinder body and a high-pressure sealing ring to respectively form independent sealing units; the gas wheel rotor is provided with N combustion chambers which are uniformly distributed, the number of the combustion chambers corresponds to that of the cylinders, and the gas compressing rotor and the gas wheel rotor do concentric rotation movement at the same speed; when the gas compression rotor rotates, and the piston in the cylinder chamber rotates to the top dead center, the compressed high-pressure gas in the cylinder chamber enters the corresponding combustion chamber on the gas turbine rotor through the high-pressure gas inlet hole to expand and do work, so that the invention task of the rotary piston gas turbine engine is realized.
The technical scheme of the invention is as follows: a rotary piston gas turbine engine comprises a cylinder body (1), a front end cover (2) and a rear end cover (3) which are combined into a shell; piston pin movement tracks (18) which are not concentric with the gas compression rotor (4) and the gas turbine rotor (5) are respectively arranged on the binding surfaces of the front end cover (2) and the rear end cover (3) and the cylinder body, needle bearings (12) are embedded at the two ends of a piston pin (11) and rotate in the piston pin movement tracks (18), and the piston pin (11) pushes a piston (9) to perform suction and compression strokes; the gas compressing rotor (4) and the gas turbine rotor (5) are provided with a channel (19) for limiting the reciprocating motion of the piston pin; an air inlet channel (15), an air outlet channel (16), a spark plug (13), a cooling circulating water channel (14) and an engine oil tank (17) are respectively arranged at proper positions on the cylinder body, and an air inlet delay channel (20) is arranged on the inner wall surface corresponding to the air inlet channel (15); the cooling circulation water channel (14) is provided with a cooling circulation water channel inlet (27) and a cooling circulation water channel outlet (28); the rear end cover (3) is provided with an oil pump (21), a driven gear shaft (22), a driven gear (24) and a rear end cover main bearing (25); the front end cover (2) is provided with a front end cover main bearing (26) and a cooling circulating water channel (14); the air compression rotor (4), the gas wheel rotor (5) and the driving gear (23) are arranged on the main shaft (6) of the engine; the gas compressing rotor (4), the gas turbine rotor (5), N pistons (9), N piston pins (11) and N piston pin reciprocating motion limiting channels (19) are enclosed in a synthesized shell, and the rotary piston gas turbine engine is characterized in that a cylinder with the same diameter as the inner diameter of the cylinder body (1) and the outer diameter of the gas turbine rotor (5) is arranged in the rotary piston gas turbine engine and is in sliding gap contact; n combustion chambers (7) which are uniformly distributed are arranged on the gas wheel rotor (5), and the number of the N cylinders is corresponding to that of the N cylinders arranged on the air compressing rotor; the air compression rotor and the gas turbine rotor do concentric rotary motion at the same speed; when the gas compression rotor (4) rotates, and a piston (9) in a cylinder chamber (8) rotates to an upper dead point, high-pressure gas compressed in the cylinder chamber (8) enters a corresponding combustion chamber (7) arranged on the gas compression rotor (5) through a high-pressure gas inlet (30) to expand and do work; the air compressing rotor (4) and the gas turbine rotor (5) are separated from the inner wall surface of the cylinder body (1) through a high-pressure sealing ring (31) to form independent sealing units respectively.
N combustion chambers (7) are symmetrically and uniformly distributed on the radial surface of the gas turbine rotor (5), the radial surface of the gas turbine rotor and the inner wall surface of the cylinder body (1) form a cavity, and the high-pressure sealing ring (31) and the inner wall surface of the cylinder body (1) form sliding gap contact sealing; a high-pressure gas-isolating block (32) capable of sliding up and down is arranged on the outer wall surface of a cylinder body (1) at the compression end point of a piston, a spring (29) is sleeved at the head of the high-pressure gas-isolating block (32), when a combustion chamber (7) on a gas turbine rotor (5) rotates to pass through the bottom of the high-pressure gas-isolating block (32), the volume of the combustion chamber (7) is gradually increased along with the rotation of the gas turbine rotor (5), and deflagration high-pressure mixed gas pushes the radial surface of the combustion chamber (7) on the gas turbine rotor (5) to rotate.
The gas compressing rotor (4) and the gas turbine rotor (5) are of an integral structure and can also be manufactured into a rigidly connected whole, and for manufacturing large and ultra-large rotary piston gas turbine engines, the gas compressing rotor (4) and the gas turbine rotor (5) can be manufactured and processed respectively and rigidly connected into a whole to be arranged on a main shaft (6) of the engine; the gas compressing rotor (4) and the gas turbine rotor (5) are provided with a channel (19) for limiting the reciprocating motion of the piston pin; the air compression rotor (4) and the gas turbine rotor (5) are provided with channels (19) for limiting piston pins to reciprocate, and the number of the channels is equal.
Cylinder body (1) cylinder internal face that cylinder body (1) cylinder outer wall intake duct (15) correspond, set up time delay channel (20) that admits air to satisfy the quick scavenging of engine.
And an exhaust backflow preventing check valve plate (33) is arranged in the exhaust passage (16) on the outer wall of the cylinder body (1).
The invention relates to a rotary piston gas turbine engine, which works by rotating a gas compression rotor, a gas turbine rotor, N pistons and N piston pins (the two ends of the pins extend into piston pin movement tracks on the inner walls of a front end cover and a rear end cover which are not concentric with the rotor) which are embedded in the gas compression rotor in a stator cylinder body, matching with corresponding gas inlet and exhaust systems, the pistons move in the gas compression rotor cylinder body in a telescopic way, the gas suction and compression of the engine are completed in the rotation, and when the pistons in a cylinder chamber rotate to the upper dead point, the compressed high-pressure gas in the cylinder chamber enters a corresponding combustion chamber arranged on the gas turbine rotor through a high-pressure pore passage to expand, work and exhaust in a working cycle. The air compression rotor and the gas wheel rotor rotate to drive a piston embedded in a cylinder chamber of the air compression rotor to rotate along with the air compression rotor, two ends of a piston pin rotate at the same speed but not in the same center in piston pin movement tracks which are arranged on the binding surfaces of a front end cover and a rear end cover and a cylinder body and are not in the center of the air compression rotor respectively, and the piston slides in the air compression rotor cylinder body in a telescopic manner to meet the requirement on the same-speed movement of the air compression rotor and the gas wheel rotor; the gas compressing rotor and the gas wheel rotor rotate for a circle, N pistons complete gas suction and compression in the gas compressing rotor cylinder body, and compressed high-pressure gas enters a corresponding combustion chamber arranged on the gas wheel rotor through a high-pressure pore passage to expand and do work and perform exhaust work circulation. The gas compression rotor and the gas wheel rotor rotate, continuous mixed combustible high-pressure gas enters a combustion chamber of the gas wheel rotor, and the gas wheel rotor is ignited by a spark plug to push the radial surface of the gas wheel rotor to do work, so that the invention task is well realized.
Has the advantages that: the rotary piston gas turbine engine of the structure form adopts the existing internal combustion engine piston gas sealing structure to solve the problem of difficult gas sealing of the rotor engine, and simultaneously adopts the structure that the gas compressing rotors compress gas at intervals, and high-pressure gas enters the combustion chamber of the gas turbine rotor to do work at intervals, so that the rotary piston gas turbine engine has substantial change on a positive displacement internal combustion engine, the deflagration gas acts on the radial surface of the gas turbine rotor, the force arm (large radius) of the gas turbine rotor is long, the torque force is increased under the same rotating speed, and the novel rotary engine with low rotating speed, large torque, environmental protection and energy-saving effect and obvious distance can be realized. The invention can manufacture power with various displacement levels, is particularly suitable for manufacturing high-power engines, can show the advantages of simplified structure, small vibration and noise, production cost saving and high mechanical efficiency, and can completely meet the market demand.
The rotary piston gas turbine engine has the advantages of reasonable structural design, novel conception, compact and simplified structure, stable operation, small vibration, low production cost, continuous and stable work doing of the engine, long torque force wall (the radius of a rotor is large, the detonation force of compressed mixed gas directly acts on the radial surface of a gas turbine rotor), high mechanical efficiency, capability of greatly reducing fuel consumption and the like; the compressor rotor and the gas turbine rotor can be provided with N cylinder chambers and N corresponding combustion chambers, wherein the N cylinder chambers are arranged within the diameter of 500-2000 mm of the single compressor rotor, the number of the N pistons is equal to that of the cylinder chambers and piston pins; the engine can be used as automobile power, medium and small aviation power, tank power and the like. Can completely meet the market demand and has great economic benefit.
Description of the drawings:
FIG. 1 is a schematic diagram of a cycle of operation of a rotary piston gas turbine engine.
Fig. 2 is a schematic diagram of the operating cycle of the engine after the rotor of fig. 1 has been rotated counterclockwise by 144 degrees.
Fig. 3 is a view of a rotary piston gas turbine engine with the front head cover 2 and its right part removed.
Fig. 4 showsbase:Sub>A viewbase:Sub>A-base:Sub>A of the stator of the engine corresponding to the intake port.
Fig. 5 shows a structural view of the rear end cover 3 attached to the cylinder surface.
Fig. 6 is a structural view of the front end cover 2 attached to the surface of a cylinder body.
FIG. 7 is a view of the integral construction of the displacer and gas turbine rotor.
Figure 8 is anbase:Sub>A-base:Sub>A view ofbase:Sub>A displacer and gas turbine rotor integrated structure.
Fig. 9 is a basic structure diagram of the piston.
In the figure, the structural embodiment of the rotary piston gas turbine engine comprises a cylinder body 1, a front end cover 2, a rear end cover 3, a gas compression rotor 4, a gas turbine rotor 5, a combustion chamber 7, a cylinder chamber 8, a piston 9, a piston ring 10, a piston pin 11, a needle bearing 12, a spark plug 13, a cooling circulation water channel 14, an air inlet channel 15, an exhaust channel 16, an engine oil tank 17, a piston pin movement track 18, a piston pin reciprocating motion limiting channel 19, an air inlet delay channel 20, an oil pump 21, a driven gear shaft 22, a driving gear 23, a driven gear 24, a rear end cover main bearing 25, a front end cover main bearing 26, a cooling circulation water channel inlet 27, a cooling circulation water channel outlet 28, a spring 29, a high-pressure air inlet hole 30, a high-pressure air sealing ring 31, an air isolating stopper 32 and an exhaust backflow preventing check valve plate 33.
The specific implementation mode is as follows:
referring to the figures, the rotary piston gas turbine engine comprises a cylinder body 1, a front end cover 2 and a rear end cover 3 which are combined into a shell; piston pin movement tracks 18 which are not concentric with the air compression rotor 4 and the gas rotor 5 are respectively arranged on the binding surfaces of the front end cover 2 and the rear end cover 3 with the cylinder body; the air compression rotor 4 and the gas turbine rotor are provided with a channel 19 for limiting the reciprocating motion of piston pins; an air inlet channel 15, an air outlet channel 16, a spark plug 13, a cooling circulating water channel 14 and an engine oil tank 17 are respectively arranged at proper positions on the cylinder body, and an air inlet delay channel 20 is arranged on the inner wall surface corresponding to the air inlet channel 15; the cooling circulation water channel 14 is provided with a cooling circulation water channel inlet 27 and a cooling circulation water channel outlet 28; the rear end cover 3 is provided with an oil pump 21, a driven gear shaft 22, a driven gear 24 and a rear end cover main bearing 25; the front end cover 2 is provided with a front end cover main bearing 26 and a cooling circulating water channel 14; the air compression rotor 4, the gas turbine rotor 5 and the driving gear 23 are arranged on the main shaft 6 of the engine; the gas compression rotor 4, the gas turbine rotor 5, the N pistons 9, the N piston pins 11 and the N piston pin movement limiting channels 19 are enclosed in a combined shell, and the gas turbine engine with the rotary pistons is characterized in that a cylinder with the same diameter as the inner diameter of the cylinder body 1 and the outer diameter of the gas turbine rotor 5 is arranged in the gas turbine engine with the rotary pistons, and the cylinder is in sliding gap contact; the gas wheel rotor 5 is provided with N uniformly distributed combustion chambers 7, and the number of the combustion chambers corresponds to the number of N cylinders arranged on the gas compression rotor; the air compressing rotor and the gas turbine rotor do concentric rotation movement at the same speed; when the gas compressing rotor 4 rotates, and the piston 9 in the cylinder chamber 8 rotates to the top dead center, the compressed high-pressure gas in the cylinder chamber 8 enters the corresponding combustion chamber 7 arranged on the gas turbine rotor 5 through the high-pressure gas inlet hole 30 to expand and do work; the compressor rotor 4 and the gas turbine rotor 5 are separated from the inner wall surface of the cylinder 1 by a high-pressure seal ring 31 to form independent seal units.
The gas turbine rotor 5 is provided with N combustion chambers 7 which are symmetrically and uniformly distributed on the radial surface, the radial surface of the combustion chambers and the inner wall surface of the cylinder body 1 form a cavity, and the high-pressure sealing ring 31 and the inner wall surface of the cylinder body 1 form a sliding gap for contact sealing; a high-pressure air isolating block 32 capable of sliding up and down is arranged on the outer wall surface of the cylinder body 1 at the compression end point of the piston, a spring 29 is sleeved at the head of the high-pressure air isolating block 32, when the combustion chamber 7 on the gas turbine rotor 5 rotates to pass through the bottom of the high-pressure air isolating block 32, the volume of the combustion chamber 7 is gradually increased along with the rotation of the gas turbine rotor 5, and the deflagration high-pressure mixed gas pushes the radial surface of the combustion chamber 7 on the gas turbine rotor 5 to rotate.
The gas compressing rotor 4 and the gas turbine rotor 5 are of an integral structure and can also be manufactured into a rigidly connected whole, and for manufacturing large and ultra-large rotary piston gas turbine engines, the gas compressing rotor 4 and the gas turbine rotor 5 can be manufactured and processed respectively and rigidly connected to be integrally arranged on a main shaft 6 of the engine; the air compression rotor 4 and the gas turbine rotor 5 are provided with a channel 19 for limiting the reciprocating motion of piston pins; the number of the piston pin reciprocating motion limiting grooves 19 of the compressor rotor 4 is equal to that of the gas turbine rotor 5.
And an air inlet delay channel 20 is arranged on the inner wall surface of the cylinder body 1 corresponding to the air inlet channel 15 on the outer wall of the cylinder body 1 so as to meet the requirement of quick scavenging of the engine.
And an exhaust backflow preventing check valve plate 33 is arranged in the exhaust passage 16 on the outer wall of the cylinder body 1.
FIG. 1 is a schematic diagram of a working cycle of a rotary piston gas turbine engine according to the present invention, showing the movement of each cylinder of a displacer and each combustion chamber of a gas turbine rotor during the rotation of the rotary piston gas turbine engine; in the figure, the piston No. 1 finishes air suction quickly, the piston No. 2 is in the compression process, the piston No. 3 is in the position to enter ignition after compression, the combustion chamber on the gas wheel rotor corresponding to the piston No. 4 is in the expansion work-doing position, and the combustion chamber on the gas wheel rotor corresponding to the piston No. 5 is communicated with the exhaust channel to carry out exhaust state;
fig. 2 is a schematic diagram of a working cycle of the engine after the displacer in fig. 1 drives the piston to rotate counterclockwise by 144 degrees, in which, the piston 1 is at a position at the end of compression, high-pressure gas is about to enter an ignition position through a high-pressure gas inlet, a combustion chamber on the gas turbine rotor corresponding to the piston 2 is at an expansion work position, a combustion chamber on the gas turbine rotor corresponding to the piston 3 is communicated with an exhaust channel to perform an exhaust state, the piston 4 completes gas suction soon, the displacer and the gas turbine rotor rotate for one circle during the compression process of the piston 5, and each cylinder and each combustion chamber complete a working cycle of gas suction, compression, expansion work and exhaust respectively; the figure shows that the air compressing rotor and the gas turbine rotor are in clearance contact with the stator cylinder body, the rotor and the cylinder body are concentric, the piston pin and the piston rotate at the same speed but not in the same center along with the rotor, and the piston does telescopic reciprocating motion.
FIG. 3 is a diagram showing the arrangement of relevant parts of a rotary piston gas turbine engine, and the working cycle conditions of each cylinder and each combustion chamber of the engine; the cylinder block is shown with cooling circulation water channels 14, oil sump 17, needle bearings 12 mounted in piston pin motion track 18.
Fig. 5 is a view of the rear end cover 3 from the cylinder block side, showing the piston pin movement track 18, the cooling circulation water inlet 27, the cooling circulation water outlet 28, and the cooling circulation water passage 14.
Fig. 6 is a block-side view of the front end cover 2, showing the piston pin movement track 18 and the cooling circulation water passage 14.
Figure 7 is a basic structural view of the integration of the displacer and the gas turbine rotor showing a configuration of the displacer with N evenly spaced, oppositely centered cylinder chambers 8 and the gas turbine rotor with N evenly spaced, oppositely centered combustion chambers 7.
Fig. 8 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of the displacer integrated with the gas turbine rotor.
Figure 9 is a view of the basic structure of the piston. The piston crown is shown as a curved surface which is in the same arc as the cylinder body and has a piston ring groove 10 formed in the upper portion.
In conclusion, the rotary piston gas turbine engine has the characteristics of reasonable structural design, novel concept, unique inventive and created technical scheme, compact and simplified structure, stable operation, small vibration, production cost saving, capability of realizing continuous and stable work of the engine, long torque force arm (large rotor radius, direct action of the explosion force of the compressed mixed gas on the radial surface of a gas turbine rotor), high mechanical efficiency, great reduction of fuel consumption and the like; the engine can be used as automobile power, medium and small aviation power, tank power and the like. According to the scheme, the novel rotary engine with the low rotating speed, the large torque, the environmental protection and the obvious energy-saving effect can completely meet the market demand, bring huge economic benefit to the country and bring benefits to mankind.
Claims (5)
1. A rotary piston gas turbine engine comprises a cylinder body (1), a front end cover (2) and a rear end cover (3) which are combined into a shell; piston pin movement tracks (18) which are not concentric with the gas compression rotor (4) and the gas turbine rotor (5) are respectively arranged on the binding surfaces of the front end cover (2) and the rear end cover (3) and the cylinder body, needle bearings (12) are embedded at the two ends of a piston pin (11) and rotate in the piston pin movement tracks (18), and the piston pin (11) pushes a piston (9) to perform suction and compression strokes; the air compression rotor (4) and the gas turbine rotor (5) are provided with a channel (19) for limiting the reciprocating motion of piston pins; an air inlet channel (15), an air outlet channel (16), a spark plug (13), a cooling circulating water channel (14) and an engine oil tank (17) are respectively arranged at proper positions on the cylinder body, and an air inlet delay channel (20) is arranged on the inner wall surface corresponding to the air inlet channel (15); the cooling circulation water channel (14) is provided with a cooling circulation water channel inlet (27) and a cooling circulation water channel outlet (28); the rear end cover (3) is provided with an oil pump (21), a driven gear shaft (22), a driven gear (24) and a rear end cover main bearing (25); the front end cover (2) is provided with a front end cover main bearing (26) and a cooling circulating water channel (14); the air compression rotor (4), the gas wheel rotor (5) and the driving gear (23) are arranged on the main shaft (6) of the engine; the gas compressing rotor (4), the gas turbine rotor (5), N pistons (9), N piston pins (11) and N piston pin reciprocating motion limiting channels (19) are enclosed in a synthesized shell, and the rotary piston gas turbine engine is characterized in that a cylinder with the same diameter as the inner diameter of the cylinder body (1) and the outer diameter of the gas turbine rotor (5) is arranged in the rotary piston gas turbine engine and is in sliding gap contact; n combustion chambers (7) which are uniformly distributed are arranged on the gas wheel rotor (5), and the number of the N air cylinders which are arranged on the gas compression rotor (4) corresponds to that of the N air cylinders; the air compression rotor and the gas turbine rotor do concentric rotary motion at the same speed; when the gas compressing rotor (4) rotates, and the piston (9) in the cylinder chamber (8) rotates to the top dead center, the compressed high-pressure gas in the cylinder chamber (8) enters the corresponding combustion chamber (7) arranged on the gas turbine rotor (5) through the high-pressure gas inlet hole (30) to expand and do work; the air compressing rotor (4) and the gas turbine rotor (5) are separated from the inner wall surface of the cylinder body (1) through a high-pressure sealing ring (31) to form independent sealing units respectively.
2. The rotary piston gas turbine engine according to claim 1, characterized in that the gas turbine rotor (5) is provided with N combustion chambers (7) which are arranged on a radial surface and are centrosymmetrically and uniformly distributed, the radial surface and the inner wall surface of the cylinder body (1) form a cavity, and the high-pressure sealing ring (31) and the inner wall surface of the cylinder body (1) form a sliding gap contact seal; a high-pressure gas-isolating stop block (32) capable of sliding up and down is arranged on the outer wall surface of a cylinder body (1) at the compression end point of a piston, a spring (29) is sleeved at the head of the high-pressure gas-isolating stop block (32), when a combustion chamber (7) on a gas wheel rotor (5) rotates to pass through the bottom of the high-pressure gas-isolating stop block (32), the volume of the combustion chamber (7) is gradually increased along with the rotation of the gas wheel rotor (5), and deflagrated high-pressure mixed gas pushes the radial surface of the combustion chamber (7) on the gas wheel rotor (5) to rotate.
3. The rotary piston gas turbine engine as claimed in claim 1 or 2, wherein the displacer (4) and the gas turbine rotor (5) are of integral construction or are rigidly connected, and for the manufacture of large and ultra-large rotary piston gas turbine engines, the displacer (4) and the gas turbine rotor (5) can be manufactured separately and rigidly connected to be integrally mounted on the engine main shaft (6); the gas compressing rotor (4) and the gas turbine rotor (5) are provided with a channel (19) for limiting the reciprocating motion of the piston pin; the number of the piston pin reciprocating motion limiting grooves (19) arranged on the air compression rotor (4) and the number of the piston pin reciprocating motion limiting grooves (19) arranged on the gas turbine rotor (5) are equal.
4. A rotary piston gas turbine engine according to claim 1 or 2, characterized in that the inlet duct (20) is provided on the inner wall of the cylinder (1) in correspondence to the inlet duct (15) on the outer wall of the cylinder (1) to allow the engine to be rapidly scavenged.
5. A rotary piston gas turbine engine according to claim 1 or 2, characterized in that in the exhaust duct (16) in the outer wall of the cylinder block (1) there is a check valve plate (33) preventing the reverse flow of exhaust gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010271917.0A CN111441865B (en) | 2020-04-03 | 2020-04-03 | Rotary piston gas turbine engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010271917.0A CN111441865B (en) | 2020-04-03 | 2020-04-03 | Rotary piston gas turbine engine |
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| Publication Number | Publication Date |
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| CN111441865A CN111441865A (en) | 2020-07-24 |
| CN111441865B true CN111441865B (en) | 2022-11-25 |
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| CN202010271917.0A Active CN111441865B (en) | 2020-04-03 | 2020-04-03 | Rotary piston gas turbine engine |
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| US4342295A (en) * | 1979-04-18 | 1982-08-03 | Williams Robert H | Rotary internal combustion engine |
| US4449488A (en) * | 1980-06-09 | 1984-05-22 | Rondal P. Howell | Free piston internal combustion engine |
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| CN1055410A (en) * | 1991-04-15 | 1991-10-16 | 崔汉平 | Gas piston rotor engine |
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2020
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