An elliptical wheel machine

Abstract

The application relates to an elliptical wheel machine, which comprises a machine body, the machine body being a driving machine when medium pressure is reduced, and the machine body being a driven machine when medium pressure is increased. When the machine body is the driving machine, the machine body comprises a front cylinder body and a rear cylinder body communicated with the front cylinder body, the included angle between the center line of the front cylinder body and the center line of the rear cylinder body being 90 DEG; when the machine body is the driven machine, the machine body comprises a front cylinder body and a rear cylinder body communicated with the front cylinder body. The application has the advantages that the inner cavity of the stator is divided into four chambers, the difference between the long axis and the short axis of the ellipse is ingeniously utilized, thrust is generated under the action of pressure difference, and then the thrust is converted into torque, the function of the engine is realized, and the function of the driven machine is realized under the action of input torque.

Description

TECHNICAL FIELD

[0001] The present application relates to an elliptical wheel machine, belonging to the field of engine and fluid machinery. BACKGROUND

[0002] The current problems in the field of engine are:

[0003] 1. The commonly used energy sources are electricity, oil, gas, high-pressure steam and other high-end energy sources, and there is a lack of a suitable volumetric engine that uses low-grade energy sources such as exhaust steam, low-pressure water, and gas.

[0004] 2. The existing low-pressure blade turbine has low efficiency and high cost.

[0005] 3. The piston engine has a complex structure and problems such as noise and vibration.

[0006] The current problems in the field of fluid machinery are:

[0007] 1. The centrifugal pump is prone to cavitation, has low single-stage lift, and has a complex multi-stage structure and high cost.

[0008] 2. The pressure head of the centrifugal fan and the Roots blower is low.

[0009] 3. The air compressor has high vibration and noise and low efficiency.

[0010] 4. The gear and worm type compressor has internal leakage problems. SUMMARY

[0011] In order to overcome the defects of the prior art, the present application provides an elliptical wheel machine, and the technical scheme of the present application is:

[0012] An elliptical wheel machine, comprising a body, when the medium is depressurized, the body is an engine; when the medium is pressurized, the body is a driven machine.

[0013] When the body is an engine, the body comprises a front cylinder body and a rear cylinder body in communication with the front cylinder body, the center line of the front cylinder body is the same as the center line of the rear cylinder body, and the plane where the pressurizing units on the front cylinder body and the rear cylinder body are located forms a 90° angle.

[0014] The front cylinder body is provided with a partition plate between the front cylinder body and the rear cylinder body, and is provided with a pressurizing unit on both 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 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 sealing strip, an outer sealing strip 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 sealing strip is slidably arranged in the pressurizing pipe, the inner part of the pressurizing pipe forms the outer sealing strip pressurizing cavity, and the pressurizing pipe is provided with the first pressurizing port in communication with the outer sealing strip pressurizing cavity; the pressurizing pipe of one pressurizing unit and the front cylinder body form a first flow port and a fourth flow port, the first flow port is in communication with a first chamber, the fourth flow port is in communication with a fourth chamber, and the first chamber and the fourth chamber form the high-pressure cavity or the low-pressure cavity; the pressurizing pipe of the other pressurizing unit and the front cylinder body form a second flow port and a third flow port, the second flow port is in communication with a second chamber, the third flow port is in communication with a third chamber, and the second chamber and the third chamber form the low-pressure cavity or the high-pressure cavity.

[0015] The front cylinder rotor comprises a rotor body, an inner sealing strip and a spring, one inner sealing strip is inserted into each end of the rotor body and is in sliding fit with the rotor body, a spring mounting hole is arranged in the inner part of the rotor body, blind holes corresponding to the spring mounting hole are arranged on the two inner sealing strips, the spring is arranged in the spring mounting hole, and both ends of the spring are arranged in the blind holes; the two inner sealing strips are in sliding fit with the front cylinder body under the action of the spring.

[0016] A rear cylinder rotor is arranged in the rear cylinder body, an outer sealing plate is arranged at the port of the rear cylinder body, a front end sealing plate is arranged in the inner part of 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, the end sealing plate pressurizing cavity is in communication with the outside through a second pressurizing port arranged on the rear cylinder body; one side of the rotor body is provided with the partition plate, and the other side is provided with a rear end sealing plate, 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 a transmission shaft is connected to the rear cylinder rotor, and the other end penetrates through the outer sealing plate.

[0017] When the machine body is a driven machine, the machine body comprises a front cylinder body and a rear cylinder body in communication with the front cylinder body, a pressurizing unit is arranged on each side 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, 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 sealing strip, an outer sealing strip 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 sealing strip is slidably arranged in the pressurizing pipe, the inner part of the pressurizing pipe forms the outer sealing strip pressurizing cavity, and the pressurizing pipe is provided with the first pressurizing port in communication with the outer sealing strip pressurizing cavity; the pressurizing pipe of one pressurizing unit and the front cylinder body form a first flow port and a fourth flow port, the first flow port is in communication with a first cavity, the fourth flow port is in communication with a fourth cavity, and the first cavity and the fourth cavity form the high-pressure cavity or the low-pressure cavity; the pressurizing pipe of the other pressurizing unit and the front cylinder body form a second flow port and a third flow port, the second flow port is in communication with a second cavity, the third flow port is in communication with a third cavity, and the second cavity and the third cavity form the low-pressure cavity or the high-pressure cavity.

[0018] The front cylinder rotor comprises a rotor body, inner sealing strips and springs, one inner sealing strip is inserted into each end of the rotor body and in sliding fit with the rotor body, spring mounting holes are arranged in the inner part of the rotor body, blind holes corresponding to the spring mounting holes are arranged on the two inner sealing strips, the springs are arranged in the spring mounting holes, and the two ends of the springs are arranged in the blind holes; the two inner sealing strips are in sliding fit with the front cylinder body under the action of the springs.

[0019] The rear cylinder body comprises a starting pressurizing cylinder, a piston is arranged in the starting pressurizing cylinder, the piston divides the inside of the starting pressurizing cylinder into an upper cavity and a lower cavity, the upper cavity is in communication with the outside through an inlet, the lower cavity is in communication 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 arranged on one side of the rotor body, and a front end sealing plate is arranged on the other side.

[0020] The advantages of the present application are as follows:

[0021] The inner cavity of the stator is divided into four cavities, the difference between the major axis and the minor axis of the ellipse is ingeniously utilized, the thrust is generated under the action of the pressure difference, and then the torque is converted, the function of the engine is realized, and the fluid can be driven to work under the action of the input torque, and the function of the driven machine is realized.

[0022] The present application adopts two vertical intersecting rotors as an engine, and one assists the other to cross the dead point.

[0023] The present application adopts the principle of elastic contact sealing to solve the internal leakage problem of gear worm type compressor.

[0024] The present application is a positive displacement engine driven machine, not impulse and reaction type, so it has high efficiency. The rotor with elliptical or similar elliptical cross section is much simpler than turbine blade rotor. The present application can be used as engine, driven machine or combined engine and driven machine to form double acting rotor machine, which has wide application.

[0025] The present application engine abandons the mainstream principle of existing engine, i.e. transition from reciprocating motion to rotation, but directly forms rotation, which has obvious advantages.

[0026] The present application can be used as engine, driven machine or combined engine and driven machine to form double acting rotor machine, which has wide application. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the schematic diagram of the main structure of the first embodiment of the present application.

[0028] Figure 2 is the A-A sectional view of Figure 1 .

[0029] Figure 3 is the schematic diagram of the main structure of the second embodiment of the present application.

[0030] Figure 4 is the schematic diagram of the present application for exhaust steam recovery.

[0031] Figure 5 is the schematic diagram of the present application for steam source pressure boosting.

[0032] Figure 6 is the schematic diagram of the present application for fluid engine.

[0033] Figure 7 is the schematic diagram of the present application for air heat source pump.

[0034] Figure 8 is the schematic diagram of the present application for transmitting torque from prime mover to elliptical rotor machine.

[0035] Figure 9 is the schematic diagram of the present application for boosting low pressure head water to high area for heating in central heating system.

[0036] Figure 10 is the schematic diagram of the present application for use in agricultural irrigation.

[0037] Figure 11 is the schematic diagram of the present application for steam or compressed air drainage.

[0038] Figure 12 is a schematic diagram of the present application using differential pressure of any medium to drive another medium to step up pressure. DETAILED DESCRIPTION

[0039] The present application will be further described by the following specific examples. The advantages and features of the present application will become more apparent with the description. However, these examples are only exemplary and do not constitute any limitation to the scope of the present application. Those skilled in the art should understand that the details and forms of the technical solutions of the present application can be modified or replaced without departing from the spirit and scope of the present application, and such modifications and replacements fall within the protection scope of the present application.

[0040] Referring to Figures 1 to 12 , the present application relates to an elliptical wheel machine, comprising a machine body, which is a driving machine when the medium is depressurized, and a driven machine when the medium is pressurized.

[0041] As shown in Figure 1 and Figure 2 , when the machine body is a driving machine, the machine body comprises a front cylinder body and a rear cylinder body in communication with the front cylinder body, the center line of the front cylinder body is the same as the center line of the rear cylinder body, and the plane where the pressurizing units on the front cylinder body and the rear cylinder body are located forms a 90° angle (the angle between the center line P of the front cylinder body and the center line Q of the rear cylinder body is 90°).

[0042] When the body is an engine, the body comprises a front cylinder body and a rear cylinder body in communication with the front cylinder body, a partition plate 2 is arranged between the front cylinder body and the rear cylinder body, a pressurizing unit is arranged on each side 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 separates 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 sealing strip 17, an outer sealing strip pressurizing cavity 18 and a first pressurizing port 19, one end of the pressurizing pipe is provided with the blind plate 20, the other end of the pressurizing pipe extends into the front cylinder body, the outer sealing strip 17 is slidably arranged in the pressurizing pipe, the inner part of the pressurizing pipe forms the outer sealing strip pressurizing cavity 18, and the pressurizing pipe is provided with the first pressurizing port 19 in communication with the outer sealing strip pressurizing cavity 18; a first flow port 25 and a fourth flow port 24 are formed between the pressurizing pipe of one pressurizing unit and the front cylinder body, the first flow port 25 is in communication with a first cavity 26; the fourth flow port 24 is in communication with a fourth cavity 23, and the first cavity 26 and the fourth cavity 23 form the high-pressure cavity or the low-pressure cavity; a second flow port 16 and a third flow port 21 are formed between the pressurizing pipe of the other pressurizing unit and the front cylinder body, the second flow port 16 is in communication with a second cavity 15, the third flow port 21 is in communication with a third cavity 22, and the second cavity 15 and the third cavity 22 form the low-pressure cavity or the high-pressure cavity.

[0043] The front cylinder rotor comprises a rotor body 10, inner sealing strips 14 and springs 13, one inner sealing strip 14 is inserted into each end of the rotor body 10 and is in sliding fit with the rotor body 10, spring mounting holes 11 are arranged in the inner part of the rotor body 10, blind holes 12 corresponding to the spring mounting holes 11 are arranged on the two inner sealing strips 14, the springs 13 are arranged in the spring mounting holes 11 and the two ends of the springs 13 are arranged in the blind holes 12, and the two inner sealing strips 14 are in sliding fit with the front cylinder body 1 under the action of the springs 13.

[0044] A rear cylinder rotor 31 is arranged in the rear cylinder body, an outer sealing plate 7 is arranged at the port of the rear cylinder body, a front end sealing plate 4 is arranged in the inner part of 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, the end sealing plate pressurizing cavity 6 is in communication with the outside through a second pressurizing port 5 arranged on the rear cylinder body, one side of the rotor body 10 is provided with the partition plate 2, the other side of the rotor body 10 is provided with a rear end sealing plate 9, the front cylinder rotor 3 and the rear cylinder rotor are connected through a connecting shaft, and the connecting shaft penetrates through the partition plate 2, one end of a transmission shaft 8 is connected to the rear cylinder rotor 31, and the other end of the transmission shaft 8 penetrates through the outer sealing plate 7.

[0045] As Figure 3As shown, when the machine body is a driven machine, the machine body comprises a front cylinder body and a rear cylinder body in communication with the front cylinder body, a pressurizing unit is arranged on each side 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, 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 sealing strip 17, an outer sealing strip pressurizing cavity 18 and a first pressurizing port 19, one end of the pressurizing pipe is provided with the blind plate 20, the other end of the pressurizing pipe extends into the front cylinder body, the outer sealing strip 17 is slidably arranged in the pressurizing pipe, the inner part of the pressurizing pipe forms the outer sealing strip pressurizing cavity 18, and the pressurizing pipe is provided with the first pressurizing port 19 in communication with the outer sealing strip pressurizing cavity 18; the pressurizing pipe of one pressurizing unit and the front cylinder body form a first flow port 25 and a fourth flow port 24, the first flow port 25 is in communication with a first cavity 26, the fourth flow port 24 is in communication with a fourth cavity 23, and the first cavity 26 and the fourth cavity 23 form the high-pressure cavity or the low-pressure cavity; the pressurizing pipe of the other pressurizing unit and the front cylinder body form a second flow port 16 and a third flow port 21, the second flow port 16 is in communication with a second cavity 15, the third flow port 21 is in communication with a third cavity 22, and the second cavity 15 and the third cavity 22 form the low-pressure cavity or the high-pressure cavity.

[0046] The front cylinder rotor comprises a rotor body 10, inner sealing strips 14 and springs 13, one inner sealing strip 14 is inserted into each end of the rotor body 10 and is in sliding fit with the rotor body 10, the spring mounting hole 11 is arranged in the inner part of the rotor body 10, the blind hole 12 corresponding to the spring mounting hole 11 is arranged on each inner sealing strip 14, the spring 13 is arranged in the spring mounting hole 11 and the two ends of the spring 13 are arranged in the blind hole 12, and the two inner sealing strips 14 are in sliding fit with the front cylinder body 1 under the action of the spring 13.

[0047] The rear cylinder body comprises a starting pressurizing cylinder 27, the piston 28 is arranged in the starting pressurizing cylinder 27, the piston 28 divides the inside of the starting pressurizing cylinder 27 into an upper cavity 29 and a lower cavity 30, the upper cavity 29 is in communication with the outside through the inlet 33, the lower cavity 30 is in communication with the outside through the outlet 32, the piston 28 is connected with the outer sealing strip 17 through the connecting shaft 31', the rear end sealing plate 9 is arranged on one side of the rotor body 10, and the front end sealing plate 4 is arranged on the other side.

[0048] The working principle of the application is as follows:

[0049] 2.1, Take the first flow port 25 and the third flow port 21 as high pressure inlet, the second flow port 16 and the fourth flow port 24 as low pressure exhaust port as an example.(Also can flow in reverse, the same effect)

[0050] 2.2, High pressure fluid (driving fluid) from the first flow port 25 and the third flow port 21 into the first chamber 26 and the third chamber 22 in the stator, respectively, push the front cylinder rotor 3 rotation, and the second chamber 15 and the fourth chamber 23 fluid, respectively, by the second flow port 16 and the fourth flow port 24 exhaust. Thus realize the rotation of the front cylinder rotor.

[0051] 2.3, the front cylinder rotor in the process of rotation, the inner seal 14 under the action of spring 13 touches the inner wall of the front cylinder body, keep the sealing effect, the outer seal 17 under the action of pressure in the pressurized chamber 18, touch the front cylinder rotor 3, keep the sealing effect.

[0052] 2.4, the pressure in the outer seal pressurized chamber 18 comes from the high pressure fluid introduced by the pressurizing port 19, that is, from the driving fluid.

[0053] 2.5, when the front cylinder rotor inner seal 14 vertex reaches the left and right of the outer seal 17, respectively, the torque generated is close to zero (dead point). At this time, the rear cylinder rotor located in its 90° direction produces the maximum torque, and when the front cylinder rotor reaches the dead point, the rear cylinder rotor reaches the maximum torque, so the cycle process realizes the continuous output of torque.

[0054] 2.6, the rear cylinder rotor in the process of rotation, from the transmission shaft 8 output torque, so as to realize the target function of the engine.

[0055] 2.7, the high pressure fluid introduced from the pressurizing port 5, push the front end seal plate 4, and drive the rotor 3 to press the rear end seal plate 9 and the partition plate 2, so that the three sealing plates clamp the rotor 3, guarantee the sealing effect between the rotor 3 and the sealing plate.

[0056] As shown in Figure 4 , for steam recovery: there are many factories of steam (common 0~0.5MPa), no place to use, empty, causing huge waste, can make it part of the pressure to the available pressure.

[0057] As shown in Figure 5 , for steam source pressure: there are many factories because of low steam pressure, can not produce, use the invention to decompose the steam into high pressure and low pressure two parts, can solve the problem.

[0058] As shown in Figure 6 , can be used as a fluid engine, output torque, can be used for power generation, etc. (generator).

[0059] As shown in Figure 7As shown, it can be applied to an air heat source pump. Using a double-acting turbine, the driven elliptical turbine draws in atmospheric air, compresses it into high-temperature, high-pressure air, and then enters the heat exchanger. Inside the heat exchanger, the high-temperature air transfers heat to the heating circulating water. After the air cools, the pressure remains high and enters the energy recovery elliptical turbine on the right side. This drives the driven motor to produce work, which, in conjunction with the electric motor, drives the driven elliptical turbine to compress the air. The discharged low-temperature air then passes through the heat exchanger, transferring its cooling capacity to the cooling circulating water.

[0060] like Figure 8 As shown, a driving machine (such as an electric motor) is used to transmit torque to the elliptical turbine, so the turbine can be made into a positive displacement water pump, a fan, an air compressor or a vacuum pump.

[0061] like Figure 9 As shown, in a centralized heating system, low-pressure head water can be used to increase the pressure to supply heat to high areas.

[0062] like Figure 10 As shown, it is used in agricultural irrigation to convert the drop into lift. Different pressure ratios can be designed to achieve a large lift, and it is applicable to places with a drop.

[0063] like Figure 11 As shown, the problem of draining water from a water pool is often encountered in industrial production. Sometimes, due to the high temperature of the water, it is impossible to drain it with a centrifugal water pump. The turbine of the present invention can be placed underwater and drained with steam or compressed air.

[0064] like Figure 12 As shown, the pressure difference of any medium is used to do work to increase the pressure of another medium.

[0065] Application Prospects

[0066] No matter the present invention is used as an engine or a driven machine, it is based on the volumetric principle and is suitable for working with low-parameter media.

[0067] The present invention abandons the disadvantages of traditional steam turbines and reciprocating engines and is a new engine with excellent performance.

[0068] As a driven machine, the present invention can replace most pump, fan and compressor fluid machinery with high efficiency and large pressure-boosting range.

[0069] With the development of new wear-resistant materials (such as ceramics, etc.), this invention will be widely used in industrial fields such as electricity, automobiles, agriculture, and national defense.

[0070] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An elliptical wheel machine comprising a machine body, characterized in that, When the medium is depressurized, the machine body is a motor; when the medium is pressurized, the machine body is a driven machine; When the machine body is a motor, the machine body comprises a front cylinder body and a rear cylinder body in communication with the front cylinder body, a center line of the front cylinder body is the same as a center line of the rear cylinder body, and a plane where a pressurizing unit on the front cylinder body and the rear cylinder body is located forms an angle of 90° with the center line of the front cylinder body and the center line of the rear cylinder body; A partition plate is arranged between the front cylinder body and the rear cylinder body, pressurizing units are arranged on both sides of the front cylinder body, the pressurizing units are oppositely arranged, a front cylinder rotor is rotatably arranged in the front cylinder body between the pressurizing units, the front cylinder rotor separates 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 sealing strip, an outer sealing strip 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 sealing strip is slidably arranged in the pressurizing pipe, the inner part of the pressurizing pipe forms the outer sealing strip pressurizing cavity, and the pressurizing pipe is provided with the first pressurizing port in communication with the outer sealing strip pressurizing cavity; a first flow port and a fourth flow port are formed between the pressurizing pipe of one pressurizing unit and the front cylinder body, the first flow port is in communication with a first cavity, the fourth flow port is in communication with a fourth cavity, the first cavity and the fourth cavity form the high-pressure cavity or the low-pressure cavity, a second flow port and a third flow port are formed between the pressurizing pipe of the other pressurizing unit and the front cylinder body, the second flow port is in communication with a second cavity, the third flow port is in communication with a third cavity, and the second cavity and the third cavity form the low-pressure cavity or the high-pressure cavity; The front cylinder rotor comprises a rotor main body, inner sealing strips and springs, the inner sealing strips are respectively inserted into both ends of the rotor main body and are in sliding fit with the rotor main body, the spring mounting holes are arranged in the inner part of the rotor main body, the blind holes corresponding to the spring mounting holes are arranged on the inner sealing strips, the springs are arranged in the spring mounting holes, and both ends of the springs are arranged in the blind holes; the inner sealing strips are in sliding fit with the front cylinder body under the action of the springs.

2. An elliptical wheel machine according to claim 1, wherein, A rear cylinder rotor is arranged in the rear cylinder body, an outer sealing plate is arranged at the port of the rear cylinder body, a front end sealing plate is arranged in the inner part of 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, the end sealing plate pressurizing cavity is in communication with the outside through a second pressurizing port arranged on the rear cylinder body, one side of the rotor main body is provided with the partition plate, the other side of the rotor main body is provided with a rear end sealing plate, 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 a transmission shaft is connected to the rear cylinder rotor, and the other end of the transmission shaft penetrates through the outer sealing plate.

3. An elliptical wheel 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 in communication with the front cylinder body, a pressurizing unit is arranged on each side of the front cylinder body, 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 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, 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 slidably arranged in the pressurizing pipe, the inner part of the pressurizing pipe forms the outer seal pressurizing cavity, and the pressurizing pipe is provided with the first pressurizing port in communication with the outer seal pressurizing cavity; the pressurizing pipe of one pressurizing unit and the front cylinder body form a first flow port and a fourth flow port, the first flow port is in communication with a first chamber, the fourth flow port is in communication with a fourth chamber, and the first chamber and the fourth chamber form the high-pressure cavity or the low-pressure cavity; the pressurizing pipe of the other pressurizing unit and the front cylinder body form a second flow port and a third flow port, the second flow port is in communication with a second chamber, the third flow port is in communication with a third chamber, and the second chamber and the third chamber form the low-pressure cavity or the high-pressure cavity.

4. An elliptical wheel machine according to claim 3, wherein, The front cylinder rotor comprises a rotor body, an inner seal and a spring, one inner seal is inserted into each end of the rotor body and in sliding fit with the rotor body, a spring mounting hole is arranged in the inner part of the rotor body, a blind hole corresponding to the spring mounting hole is arranged on each inner seal, the spring is arranged in the spring mounting hole and the two ends of the spring are arranged in the blind holes, and the two inner seals are in sliding fit with the front cylinder body under the action of the spring.

5. An elliptical wheel machine according to claim 2 or 3, wherein, The rear cylinder body comprises a starting pressurizing cylinder, a piston is arranged in 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 in communication with the outside through an inlet, the lower chamber is in communication with the outside through an outlet, the piston and the outer seal are connected together through a connecting shaft, a rear end sealing plate is arranged on one side of the rotor body, and a front end sealing plate is arranged on the other side.

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