CN217354484U

CN217354484U - Elliptical wheel machine

Info

Publication number: CN217354484U
Application number: CN202221402468.XU
Authority: CN
Inventors: 朱建文; 周松芝; 于泉
Original assignee: QINGDAO GAOYUAN THERMAL ENERGY POWER EQUIPMENT CO Ltd
Current assignee: QINGDAO GAOYUAN THERMAL ENERGY POWER EQUIPMENT CO Ltd
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-09-02
Anticipated expiration: 2032-06-07

Abstract

The utility model relates to an elliptical turbine, which comprises a machine body, wherein when the medium is depressurized, the machine body is an engine; when the medium is pressurized, the machine body is a driven machine. When the engine body is an engine, the engine body comprises a front cylinder body and a rear cylinder body communicated with the front cylinder body, and the included angle between the center line of the front cylinder body and the center line of the rear cylinder body is 90 degrees; when the machine body is a driven machine, the machine body comprises a front cylinder body and a rear cylinder body communicated with the front cylinder body. The utility model has the advantages that: the utility model discloses cut apart into four cavities with the stator inner chamber, ingenious utilization oval major and minor axis difference, produce thrust in the pressure differential effect, and then turn into the moment of torsion, realize the function of engine, can do work to the fluid again and pressurize under the input torque effect, realize the function of driven machine.

Description

Elliptical wheel machine

Technical Field

The utility model relates to an elliptical wheel machine belongs to engine and fluid machinery field.

Background

The problems currently existing in the engine field are:

1. the used energy sources are high-end energy sources such as electricity, oil, gas, high-pressure steam and the like, and a volume type engine which is suitable for using low-grade energy sources such as exhaust steam, low-pressure water, gas and the like to do work is lacked.

2. The existing low-pressure blade type steam turbine has low efficiency and high manufacturing cost.

3. The piston engine has a complex structure and has the problems of noise, vibration and the like.

The problems currently existing in the field of fluid machines are:

1. the centrifugal pump is easy to be cavitation-corroded, the single-stage lift is low, the multi-stage structure is complex, and the manufacturing cost is high.

2. The pressure heads of the centrifugal fan and the Roots fan are both low.

3. The air compressor has large vibration noise and low efficiency.

4. The inner leakage problem of the gear worm compressor.

SUMMERY OF THE UTILITY MODEL

For overcoming the defects of the prior art, the utility model provides an elliptical wheel machine, the technical scheme of the utility model is that:

an elliptical turbine comprises a body, when a medium is depressurized, the body is an engine; when the medium is pressurized, the machine body is a driven machine.

When the engine body is an engine, the engine body comprises a front cylinder body and a rear cylinder body communicated with the front cylinder body, the center line of the front cylinder body and the center line of the rear cylinder body are the same, and the planes of the pressurizing units on the front cylinder body and the rear cylinder body form an included angle of 90 degrees.

The cylinder body is characterized in that a partition plate is arranged between the front cylinder body and the rear cylinder body, two sides of the front cylinder body are respectively provided with a pressurizing unit, the two pressurizing units are arranged oppositely, a front cylinder rotor is rotatably arranged in the front cylinder body between the two pressurizing units, the front cylinder rotor divides the front cylinder body into a high-pressure cavity and a low-pressure cavity, each pressurizing unit comprises a pressurizing pipe, a blind plate, an outer seal pressurizing cavity and a first pressurizing port, one end of the pressurizing pipe is provided with the blind plate, the other end of the pressurizing pipe extends into the front cylinder body, the outer seal is slidably arranged in the pressurizing pipe, the outer seal pressurizing cavity is formed in the pressurizing pipe, and the first pressurizing port communicated with the outer seal pressurizing cavity is arranged on the pressurizing pipe; a first circulation port and a fourth circulation port are formed between the pressurizing pipe of one pressurizing unit and the front cylinder body, and the first circulation port is communicated with the first chamber; the fourth circulation port is communicated with a fourth cavity, and the first cavity and the second cavity form the high-pressure cavity or the low-pressure cavity; and a second circulation port and a third circulation port are formed between the pressurizing pipe of the other pressurizing unit and the front cylinder body, the second circulation port is communicated with the second chamber, the third circulation port is communicated with the third chamber, and the second chamber and the third chamber form the low-pressure cavity or the high-pressure cavity.

The front cylinder rotor comprises a rotor main body, inner seals and springs, the two ends of the rotor main body are respectively inserted with the inner seals, and the inner seals are in sliding fit with the rotor main body; the inner part of the rotor main body is provided with a spring mounting hole, blind holes corresponding to the spring mounting holes are arranged on the two inner sealing strips, the spring is mounted in the spring mounting hole, and two ends of the spring are placed in the blind holes; the two inner seals are in sliding fit with the front cylinder body under the action of the spring.

A rear cylinder rotor is arranged in the rear cylinder body, an outer sealing plate is arranged at a port of the rear cylinder body, a front end sealing plate is arranged in the rear cylinder body, an end sealing plate pressurizing cavity is formed in the rear cylinder body between the front end sealing plate and the outer sealing plate, and the end sealing plate pressurizing cavity is communicated with the outside through a second pressurizing port arranged on the rear cylinder body; the partition plate is arranged on one side of the rotor main body, the rear end sealing plate is arranged on the other side of the rotor main body, the front cylinder rotor and the rear cylinder rotor are connected through a connecting shaft, and the connecting shaft penetrates through the partition plate; one end of the transmission shaft is connected to the rear cylinder rotor, and the other end of the transmission shaft penetrates through the outer sealing plate.

When the machine body is a driven machine, the machine body comprises a front cylinder body and a rear cylinder body communicated with the front cylinder body, two sides of the front cylinder body are respectively provided with a pressurizing unit, the two pressurizing units are oppositely arranged, a front cylinder rotor is rotatably arranged in the front cylinder body between the two pressurizing units and is in rolling fit with the two pressurizing units, the front cylinder rotor divides the front cylinder body into a high-pressure cavity and a low-pressure cavity, each pressurizing unit comprises a pressurizing pipe, a blind plate, an outer seal pressurizing cavity and a first pressurizing port, one end of the pressurizing pipe is provided with the blind plate, the other end of the pressurizing pipe extends into the front cylinder body, an outer seal is arranged in the pressurizing pipe in a sliding manner, an outer seal pressurizing cavity is formed in the pressurizing pipe, and a first pressurizing opening communicated with the outer seal pressurizing cavity is formed in the pressurizing pipe; a first circulation port and a fourth circulation port are formed between the pressurizing pipe of one pressurizing unit and the front cylinder body, and the first circulation port is communicated with the first chamber; the fourth circulation port is communicated with a fourth cavity, and the first cavity and the second cavity form the high-pressure cavity or the low-pressure cavity; and a second circulation port and a third circulation port are formed between the pressurizing pipe of the other pressurizing unit and the front cylinder body, the second circulation port is communicated with the second chamber, the third circulation port is communicated with the third chamber, and the second chamber and the third chamber form the low-pressure cavity or the high-pressure cavity.

The back cylinder body including start the pressure cylinder, be provided with the piston in this start the inside of pressure cylinder, this piston will start the inside of pressure cylinder divide into epicoele and cavity of resorption, the epicoele communicate with the external world through the import, the cavity of resorption communicate with the external world through the export, the piston pass through the connecting axle and link together with outer sealing strip rotor body one side be provided with the rear end shrouding, the opposite side is provided with the front end shrouding.

The utility model has the advantages that:

the utility model discloses cut apart into four cavities with the stator inner chamber, ingenious utilization oval major and minor axis difference, produce thrust in the pressure differential effect, and then turn into the moment of torsion, realize the function of engine, can do work to the fluid again and pressurize under the input torque effect, realize the function of driven machine.

The utility model relates to an engine adopts two vertically crossed rotors, assists the other party each other and crosses the dead point.

The utility model discloses a sealed principle of elastic contact has solved the interior problem of leaking of gear worm class compressor.

The utility model discloses a positive displacement engine driven machine is not impulse and reaction formula, therefore is efficient.

Rotors with an elliptical or elliptical-like cross-section are much simpler than turbine blade rotors.

The elliptical turbine of the utility model can be used as an engine and a driven machine, and can also be combined with the engine and the driven machine to form a double-acting turbine, thereby producing wide application.

The engine of the utility model abandons the main flow principle of the prior engine, namely the principle of transition into rotation through reciprocating motion, and directly forms rotation, and has obvious advantages.

The utility model discloses no matter regard as the engine still as the driven machine, still the two double-acting turbine that forms that makes up all has a large amount of application occasions.

Drawings

Fig. 1 is a schematic structural diagram of a main body of a first embodiment of the present invention.

Fig. 2 is a sectional view a-a of fig. 1.

Fig. 3 is a schematic structural diagram of a second embodiment of the present invention.

Fig. 4 is a schematic view of the present invention for exhaust steam recovery.

Fig. 5 is a schematic diagram of the present invention for boosting the steam source.

Fig. 6 is a schematic diagram of the present invention for a fluid engine.

Fig. 7 is a schematic diagram of the air heat source pump of the present invention.

FIG. 8 is a schematic illustration of a drive machine transmitting torque to an elliptical machine.

Fig. 9 is a schematic view of the present invention for central heating system capable of heating high area by low head water lift.

Fig. 10 is a schematic view of the present invention used in agricultural irrigation.

Figure 11 is a schematic view of the present invention for vapor or compressed air drainage.

Fig. 12 is a schematic diagram of the present invention using the differential pressure of any one medium to do work to drive the boosting of another medium.

Detailed Description

The invention will be further described with reference to specific embodiments, the advantages and features of the invention will become more apparent as the description proceeds. These examples are merely illustrative and do not limit the scope of the invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications are intended to be included within the scope of the invention.

Referring to fig. 1 to 12, the present invention relates to an elliptical turbine, which comprises a body, wherein when the medium is depressurized, the body is an engine; when the medium is pressurized, the machine body is a driven machine.

As shown in fig. 1 and fig. 2, when the engine body is an engine, the engine body comprises a front cylinder body and a rear cylinder body communicated with the front cylinder body, the center line of the front cylinder body is the same as that of the rear cylinder body, and the planes of the pressurizing units on the front cylinder body and the rear cylinder body form an included angle of 90 ° (the included angle between the center line P of the front cylinder body and the center line of the rear cylinder body Q is 90 °).

When the engine body is an engine, the engine body comprises a front cylinder body and a rear cylinder body communicated with the front cylinder body, a clapboard 2 is arranged between the front cylinder body and the rear cylinder body, two sides of the front cylinder body are respectively provided with a pressurizing unit, the two pressurizing units are oppositely arranged, a front cylinder rotor is rotatably arranged in the front cylinder body between the two pressurizing units, the front cylinder rotor divides the front cylinder body into a high-pressure cavity and a low-pressure cavity, each pressurizing unit comprises a pressurizing pipe, a blind plate 20, an outer seal 17, an outer seal pressurizing cavity 18 and a first pressurizing port 19, one end of the pressure pipe is provided with a blind plate 20, the other end extends into the front cylinder body, an outer seal 17 is slidably mounted in the pressurizing pipe, an outer seal pressurizing cavity 18 is formed in the pressurizing pipe, and a first pressurizing port 19 communicated with the outer seal pressurizing cavity 18 is formed in the pressurizing pipe; a first circulation port 25 and a fourth circulation port 24 are formed between the pressurizing pipe of one pressurizing unit and the front cylinder body, and the first circulation port 25 is communicated with the first chamber 26; the fourth communication port 24 is communicated with a fourth chamber 23, and the first chamber 26 and the second chamber 23 form a high-pressure chamber or a low-pressure chamber; a second communication port 16 and a third communication port 21 are formed between the pressurizing pipe of the other pressurizing unit and the front cylinder body, the second communication port 16 is communicated with the second chamber 15, the third communication port 21 is communicated with the third chamber 22, and the second chamber 15 and the third chamber 22 form the low-pressure cavity or the high-pressure cavity.

The front cylinder rotor comprises a rotor main body 10, inner seals 14 and springs 13, the two ends of the rotor main body 10 are respectively inserted with the inner seals 14, and the inner seals 14 are in sliding fit with the rotor main body 10; a spring mounting hole 11 is arranged in the rotor body 10, blind holes 12 corresponding to the spring mounting holes 11 are arranged on the two inner seal strips 14, the spring 13 is mounted in the spring mounting hole 11, and two ends of the spring 13 are arranged in the blind holes 12; the two inner seals 14 are in sliding fit with the front cylinder 1 under the action of the spring 13.

A rear cylinder rotor 31 is arranged in the rear cylinder body, an outer sealing plate 7 is arranged at a port of the rear cylinder body, a front end sealing plate 4 is arranged in the rear cylinder body, an end sealing plate pressurizing cavity 6 is formed in the rear cylinder body between the front end sealing plate 4 and the outer sealing plate 7, and the end sealing plate pressurizing cavity 6 is communicated with the outside through a second pressurizing port 5 arranged on the rear cylinder body; the partition plate 2 is arranged on one side of the rotor main body 10, the rear end sealing plate 9 is arranged on the other side of the rotor main body, the front cylinder rotor 3 is connected with the rear cylinder rotor through a connecting shaft, and the connecting shaft penetrates through the partition plate 2; one end of the transmission shaft 8 is connected to the rear cylinder rotor 31, and the other end passes through the outer sealing plate 7.

As shown in fig. 3, when the machine body is a driven machine, the machine body comprises a front cylinder body and a rear cylinder body communicated with the front cylinder body, two sides of the front cylinder body are respectively provided with a pressurizing unit, the two pressurizing units are oppositely arranged, a front cylinder rotor is rotatably arranged in the front cylinder body between the two pressurizing units and is in rolling fit with the two pressurizing units, the front cylinder rotor divides the front cylinder body into a high-pressure cavity and a low-pressure cavity, each pressurizing unit comprises a pressurizing pipe, a blind plate 20, an outer seal 17, an outer seal pressurizing cavity 18 and a first pressurizing port 19, one end of the pressure pipe is provided with a blind plate 20, the other end extends into the front cylinder body, an outer seal 17 is slidably mounted in the pressurizing pipe, an outer seal pressurizing cavity 18 is formed in the pressurizing pipe, and a first pressurizing port 19 communicated with the outer seal pressurizing cavity 18 is formed in the pressurizing pipe; a first circulation port 25 and a fourth circulation port 24 are formed between the pressurizing pipe of one pressurizing unit and the front cylinder body, and the first circulation port 25 is communicated with the first chamber 26; the fourth communication port 24 is communicated with a fourth chamber 23, and the first chamber 26 and the second chamber 23 form a high-pressure chamber or a low-pressure chamber; a second communication port 16 and a third communication port 21 are formed between the pressurizing pipe of the other pressurizing unit and the front cylinder body, the second communication port 16 is communicated with the second chamber 15, the third communication port 21 is communicated with the third chamber 22, and the second chamber 15 and the third chamber 22 form the low-pressure cavity or the high-pressure cavity.

The rear cylinder body comprises a starting pressurizing cylinder 27, a piston 28 is arranged in the starting pressurizing cylinder 27, the piston 28 enables the inside of the starting pressurizing cylinder 27 to form an upper cavity 29 and a lower cavity 30, the upper cavity 29 is communicated with the outside through an inlet 33, the lower cavity 30 is communicated with the outside through an outlet 32, the piston 28 is connected with an outer sealing strip 17 through a connecting shaft 31, a rear end sealing plate 9 is arranged on one side of the rotor main body 10, and a front end sealing plate 4 is arranged on the other side of the rotor main body.

The utility model discloses a theory of operation is:

2.1, the first through-port 25 and the third through-port 21 are taken as high-pressure inlets, and the second through-port 16 and the fourth through-port 24 are taken as low-pressure outlets. (the flow can be reversed and the effect is the same)

2.2, high-pressure fluid (driving fluid) enters the first chamber 26 and the third chamber 22 in the stator from the first through hole 25 and the third through hole 21 respectively, pushes the front cylinder rotor 3 to rotate, and discharges the fluid in the second chamber 15 and the fourth chamber 23 from the second through hole 16 and the fourth through hole 24 respectively. Thereby effecting rotation of the front cylinder rotor.

2.3, in the rotation process of the front cylinder rotor, the inner seal 14 touches the inner wall of the front cylinder body under the action of the spring 13 to keep the sealing effect, and the outer seal 17 touches the front cylinder rotor 3 under the action of the pressure in the pressurizing cavity 18 to keep the sealing effect.

2.4, the pressure in the outer seal pressurizing cavity 18 is from the high-pressure fluid introduced from the pressurizing port 19, namely from the driving fluid.

2.5, when the top of the inner seal 14 of the front cylinder rotor reaches the left and right of the outer seal 17, the generated torque approaches zero (dead point). The torque generated by the rear cylinder rotor positioned in the 90-degree direction reaches the maximum value, and the torque of the rear cylinder rotor reaches the maximum value when the front cylinder rotor reaches the dead point, so that the continuous output of the torque is realized in the circulating process.

And 2.6, outputting torque from the transmission shaft 8 by the rear cylinder rotor in the rotating process, thereby realizing the target function of the engine.

2.7, the high-pressure fluid introduced from the pressurizing port 5 pushes the front end sealing plate 4 and drives the rotor 3 to press the rear end sealing plate 9 and the partition plate 2, so that three sealing plates clamp the rotor 3, and the sealing effect between the rotor 3 and the sealing plates is ensured.

As shown in fig. 4, for dead steam recovery: there are many mill exhaust steam (common 0 ~ 0.5MPa), and nowhere is available, just the evacuation causes huge waste, uses the utility model discloses can make its part step up to usable pressure.

As shown in fig. 5, for steam source boosting: there are many mills because of the vapour source pressure is low, can't produce, use the utility model discloses come the vapour with the vapour source and decompose into high pressure and low pressure two parts, alright solve the problem.

As shown in fig. 6, the engine can be used as a fluid engine to output torque, and can be used for power generation and the like (a generator).

As shown in fig. 7, may be applied to an air heat source pump. A double-acting turbine is adopted, the driven elliptical turbine sucks the atmosphere, the atmosphere is compressed into high-temperature high-pressure air, the high-temperature high-pressure air enters a heat exchanger, and the high-temperature air transfers heat to heating circulating water in the heat exchanger. After the air is cooled, the pressure is still high, the air enters the energy recovery elliptical turbine on the right side, the driven machine can be pushed to do work, and the driven elliptical turbine is driven to compress the air under the combined action of the driven machine and the motor. The cold energy of the discharged low-temperature air is transferred to cooling circulating water through the heat exchanger.

As shown in fig. 8, a main motor (e.g., an electric motor) is used to transmit torque to the elliptical turbine, and then the turbine may be configured as a positive displacement pump, a blower, an air compressor, or a vacuum pump.

As shown in fig. 9, for use in a district heating system, low head water may be used to raise the pressure to supply heat to a higher area.

As shown in figure 10, when the drop height is converted into the lift height in agricultural irrigation, the design of different pressure ratios can realize large lift height, and the device is suitable for places with drop height.

As shown in FIG. 11, the problem of water drainage from a pool is commonly used in industrial production, sometimes, the water temperature is high, and the water cannot be discharged by a centrifugal water pump, so that the turbine of the present invention can be placed under water for water drainage by steam or compressed air.

As shown in fig. 12, work is done by the pressure difference of any one medium to drive the pressure of the other medium to increase.

Application prospect

The utility model discloses no matter regard as the engine or as the driven machine, all be positive displacement principle, be suitable for low parameter medium work.

The utility model discloses abandoned the drawback of traditional steam turbine and reciprocating engine, be a novel excellent performance's engine.

The utility model relates to a driven machine can replace most pump class, fan class and compressor class fluid machinery, and is efficient, and the range of stepping up is big.

Along with the development of the technology of new wear-resistant materials (such as ceramics), the utility model can be widely applied in the industrial fields of electric power, automobiles and the like, and the fields of agriculture and national defense

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An elliptical turbine comprising a body, wherein when the medium is depressurized, the body is an engine; when the medium is pressurized, the machine body is a driven machine.

2. The elliptical turbine according to claim 1, wherein when the engine body is an engine, the engine body comprises a front cylinder and a rear cylinder communicated with the front cylinder, the center line of the front cylinder is the same as that of the rear cylinder, and the planes of the pressurizing units on the front cylinder and the rear cylinder form an included angle of 90 °.

3. The elliptical machine according to claim 2, wherein a partition is provided between the front cylinder and the rear cylinder, the front cylinder is provided with two pressurizing units on both sides thereof, the two pressurizing units are disposed opposite to each other, a front cylinder rotor is rotatably mounted in the front cylinder between the two pressurizing units, the front cylinder rotor divides the front cylinder into a high pressure chamber and a low pressure chamber, each pressurizing unit comprises a pressurizing pipe, a blind plate, an outer seal pressurizing chamber and a first pressurizing port, the blind plate is mounted at one end of the pressurizing pipe, the other end of the pressurizing pipe extends into the front cylinder, an outer seal is slidably mounted in the pressurizing pipe, the outer seal pressurizing chamber is formed in the pressurizing pipe, and the pressurizing pipe is provided with the first pressurizing port communicated with the outer seal pressurizing chamber; a first circulation port and a fourth circulation port are formed between the pressurizing pipe of one pressurizing unit and the front cylinder body, and the first circulation port is communicated with the first chamber; the fourth circulation port is communicated with a fourth cavity, and the first cavity and the second cavity form the high-pressure cavity or the low-pressure cavity; and a second circulation port and a third circulation port are formed between the pressurizing pipe of the other pressurizing unit and the front cylinder body, the second circulation port is communicated with the second chamber, the third circulation port is communicated with the third chamber, and the second chamber and the third chamber form the low-pressure cavity or the high-pressure cavity.

4. The elliptical turbine of claim 3, wherein the front cylinder rotor includes a rotor body, inner seals and springs, one of the inner seals is inserted into each of two ends of the rotor body, and the inner seals are slidably engaged with the rotor body; the inner part of the rotor main body is provided with spring mounting holes, blind holes corresponding to the spring mounting holes are arranged on the two inner sealing strips, the springs are mounted in the spring mounting holes, and two ends of each spring are placed in the blind holes; and the two inner sealing strips are in sliding fit with the front cylinder body under the action of the spring.

5. The elliptical machine according to claim 4, wherein a rear cylinder rotor is mounted in the rear cylinder block, an outer seal plate is provided at a port of the rear cylinder block, a front end seal plate is provided inside the rear cylinder block, an end seal plate pressurizing chamber is formed in the rear cylinder block between the front end seal plate and the outer seal plate, and the end seal plate pressurizing chamber is communicated with the outside through a second pressurizing port provided in the rear cylinder block; the partition plate is arranged on one side of the rotor main body, the rear end sealing plate is arranged on the other side of the rotor main body, the front cylinder rotor and the rear cylinder rotor are connected through a connecting shaft, and the connecting shaft penetrates through the partition plate; one end of the transmission shaft is connected to the rear cylinder rotor, and the other end of the transmission shaft penetrates through the outer sealing plate.

6. The elliptical machine according to claim 1, wherein when the machine body is a driven machine, the machine body comprises a front cylinder body and a rear cylinder body communicated with the front cylinder body, pressurizing units are respectively arranged on two sides of the front cylinder body, the two pressurizing units are oppositely arranged, a front cylinder rotor is rotatably arranged in the front cylinder body between the two pressurizing units, the front cylinder rotor is in rolling fit with the two pressurizing units and divides the front cylinder body into a high-pressure cavity and a low-pressure cavity, each pressurizing unit comprises a pressurizing pipe, a blind plate, an outer seal pressurizing cavity and a first pressurizing port, one end of the pressurizing pipe is provided with the blind plate, the other end of the pressurizing pipe extends into the front cylinder body, the outer seal is slidably arranged in the pressurizing pipe, and the inner part of the pressurizing pipe forms the outer seal pressurizing cavity, the pressurizing pipe is provided with a first pressurizing port communicated with the outer sealing strip pressurizing cavity; a first circulation port and a fourth circulation port are formed between the pressurizing pipe of one pressurizing unit and the front cylinder body, and the first circulation port is communicated with the first chamber; the fourth circulation port is communicated with a fourth cavity, and the first cavity and the second cavity form the high-pressure cavity or the low-pressure cavity; and a second circulation port and a third circulation port are formed between the pressurizing pipe of the other pressurizing unit and the front cylinder body, the second circulation port is communicated with the second chamber, the third circulation port is communicated with the third chamber, and the second chamber and the third chamber form the low-pressure cavity or the high-pressure cavity.

7. The elliptical turbine of claim 5, wherein the front cylinder rotor includes a rotor body, inner seals and springs, one of the inner seals is inserted into each of two ends of the rotor body, and the inner seals are slidably engaged with the rotor body; the inner part of the rotor main body is provided with spring mounting holes, blind holes corresponding to the spring mounting holes are arranged on the two inner sealing strips, the springs are mounted in the spring mounting holes, and two ends of each spring are placed in the blind holes; and the two inner sealing strips are in sliding fit with the front cylinder body under the action of the spring.

8. The elliptical turbine as defined in claim 5, wherein the rear cylinder body includes a starting pressurizing cylinder, a piston is disposed inside the starting pressurizing cylinder, the piston divides the inside of the starting pressurizing cylinder into an upper chamber and a lower chamber, the upper chamber is communicated with the outside through an inlet, the lower chamber is communicated with the outside through an outlet, the piston is connected with the outer sealing strip through a connecting shaft, a rear end sealing plate is disposed on one side of the rotor body, and a front end sealing plate is disposed on the other side of the rotor body.