A power device with pump function and a power structure with internal combustion engine function

Abstract

The present invention relates to the technical field of internal combustion engines, and more specifically, to a power device with a pump function and a power structure with an internal combustion engine function, comprising a housing, a fixed block, a plunger as an active component, and a groove wheel that cooperates with the plunger and serves as a driven component; the fixed block and the groove wheel are both arranged in the housing; the inner side wall of the housing and the outer peripheral side of the fixed block form an annular cavity; the plunger performs a circular motion in the annular cavity, and a plurality of radial grooves are provided on the groove wheel; a first through hole and a second through hole are provided on the housing; two adjacent radial grooves are respectively connected to the annular cavity to form a new cavity; the plunger divides the cavity into a first cavity and a second cavity; the first through hole is located on the first cavity and is connected thereto, and the second through hole is located in the second cavity and is connected thereto; and the device has the function of a pump. In addition, a spark plug and an oil injection port are provided on the housing between the first through hole and the second through hole, forming a combustion chamber with the radial groove; and the device has the function of an internal combustion engine. The plunger of the device can perform a complete circular motion without reciprocating motion, thus avoiding energy waste.

Description

Technical Field

[0001] The present invention relates to the technical field of internal combustion engines, and more particularly to a power device with a pump function and a power structure with an internal combustion engine function. Background Art

[0002] A pump is a device that transports liquids and increases their kinetic energy. Pumps are widely used across various economic sectors. According to incomplete statistics, pump fuel consumption accounts for approximately 5% of my country's total fuel consumption, and pump electricity consumption accounts for approximately 20% of national electricity consumption. Pumps play a vital role in the nation's economic development. Existing pumps, such as plunger pumps, are prone to strong pulse fluctuations when transporting fluids. Rotary and gear pumps struggle to adapt to high pressures and high flow rates. Centrifugal pumps also present significant challenges with quantitative control and liquid leakage and backflow.

[0003] Internal combustion engines are ubiquitous in every aspect of life and a crucial source of power for social development. Existing plunger-type internal combustion engines have long suffered from numerous drawbacks in speed, efficiency, noise, and vibration. While the emergence of rotary internal combustion engines, such as the most practical triangular rotor engine, has significantly improved speed, noise, and vibration, structural flaws have led to incomplete fuel combustion and severe rotor seal wear, resulting in increased fuel consumption, severe emissions, and increased engine maintenance. Summary of the Invention

[0004] The present invention aims to overcome the technical problems that the pumps in the above-mentioned prior art cannot simultaneously have the functions of small pulse, high delivery pressure, high energy utilization efficiency and quantitative delivery, and that the internal combustion engines in the prior art have poor stability, high noise, complex structure and high energy consumption. A power device with pump function and a power structure with internal combustion engine function are provided.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: a power device with a pump function, comprising a housing, a fixed block, a plunger assembly as an active member and performing circular motion, and a groove wheel cooperating with the plunger assembly and serving as a driven member; the fixed block is installed in the housing; the groove wheel is rotatably installed in the housing, and a plurality of radial grooves are provided on the groove wheel along its outer circumferential surface; a first arcuate surface is formed on the fixed block for contacting the outer circumferential surface of the groove wheel; the inner side wall of the housing and the outer circumferential side surface of the fixed block form an annular cavity for rotation of the plunger assembly; the plunger assembly is partially movably installed in the annular cavity, and the outer side wall of the plunger assembly contacts the inner wall of the annular cavity; a first through hole and a second through hole are provided on the housing; when the plunger assembly moves in the annular cavity and the first arcuate surface contacts the outer circumferential surface of the groove wheel, two adjacent radial grooves are respectively connected to the annular cavity and the first through hole and the second through hole are respectively connected to two adjacent radial grooves.

[0006] In this technical solution: the center distance between the fixed block and the groove wheel remains unchanged, so that the first arc surface can always contact the outer peripheral surface of the groove wheel during the movement of the plunger assembly; the two adjacent radial grooves can be connected to the annular cavity respectively to form a new cavity; the plunger assembly 3 divides the cavity into a first cavity and a second cavity; the first through hole is located in the first cavity and is connected to it, and the second through hole is located in the second cavity and is connected to it. The movement process is as follows: the plunger assembly performs circular motion driven by external power, moves from one of the radial grooves to the annular cavity, and then moves to the other radial groove, and then drives the groove wheel to rotate. In the process of pushing the groove wheel to move, the area of the first through hole exposed to the first cavity first gradually decreases and then gradually increases. Similarly, the area of the second through hole exposed to the second cavity first gradually decreases and then gradually increases until the plunger is reset to its original movement position, and the plunger assembly rotates periodically again; since the plunger assembly is constantly performing circular motion in the shell, the volume of the first cavity continues to increase, forming a negative pressure, so that the fluid continuously flows from the first through hole into the first cavity, while the volume of the second cavity continuously decreases, the pressure increases, and the fluid continuously flows out from the second through hole; wherein, the groove wheel plays the role of separating the first through hole and the second through hole, and the plunger assembly divides the cavity into two cavities, realizing the function of the first cavity sucking in fluid and the second cavity discharging fluid. This device utilizes the rotation of a grooved wheel to ensure continuous operation of the plunger without changing the direction of rotation of the plunger assembly. This avoids energy waste, provides high delivery pressure, eliminates liquid backflow, and provides minimal pulses for very stable output. Because the volume of fluid delivered per revolution is constant, it boasts the same pumping accuracy as a metering pump. This device requires no redundant structure or operation, and can instantly switch between forward and reverse inputs.

[0007] Preferably, the plunger assembly includes an active disk, a plunger and a transmission shaft installed in the housing, the plunger is installed on the active disk and located in the annular cavity, the transmission shaft is provided on the active disk and connected thereto, a mounting hole is provided on the fixed block, and the transmission shaft is clearance-matched with the mounting hole.

[0008] Preferably, there are two active disks, the fixed block is clamped between the two active disks, and both ends of the plunger are respectively connected to the two active disks.

[0009] Preferably, it further comprises a locking mechanism for adjusting the intermittent motion of the sheave; the locking mechanism is mounted outside the housing and connected to the sheave.

[0010] Preferably, the locking mechanism includes a position sensor, an electric actuator, an electromagnetic relay and a controller; the position sensor and the electromagnetic relay are electrically connected to the controller respectively, the electromagnetic relay is connected to the electric actuator, and the electric actuator is connected to the sheave to lock the sheave.

[0011] Preferably, the locking mechanism includes a telescopic device and a limit turntable provided on the shell, a driven shaft is provided on the sheave, the driven shaft is movably mounted on the shell and partially extends out of the shell, and the limit turntable is installed on the driven shaft; the limit turntable is provided with a plurality of limit grooves along the circumferential direction, and the limit turntable rotates to cooperate with the telescopic end of the telescopic device to movably abut against the outer circumferential surface of the limit turntable or the limit groove.

[0012] Preferably, the telescopic device includes a mounting block provided on the shell, a telescopic rod movably installed in the mounting block, an elastic member provided on the telescopic rod and a pushing plate, one end of the elastic member is fixed to the telescopic rod, and the other end is connected to the mounting block; a second arc surface recessed toward the center is provided on the pushing plate; when one end of the telescopic rod movably abuts against the outer circumferential surface of the pushing plate, the other end movably abuts in the limiting groove; when one end of the telescopic rod movably abuts against the second arc surface of the pushing plate, the other end movably abuts against the outer circumferential surface of the limiting turntable; the transmission shaft is movably installed on the shell and partially extends outside the shell, and the pushing plate is installed on the transmission shaft.

[0013] Preferably, one end of the elastic member is fixedly connected to the end of the telescopic rod away from the limiting turntable, and the other end is connected to the mounting block.

[0014] Preferably, the connection between the second arc-shaped surface and the side surface of the push disk is an arc structure; and the wave surface has at least one crest and one trough.

[0015] Furthermore, a power structure with internal combustion engine function includes a power device with pump function as described above, and a spark plug and a fuel injector are also provided on the shell, and the spark plug and the fuel injector are located between the first through hole and the second through hole; when the plunger assembly pushes the groove wheel to move so that a radial groove moves so that the spark plug and the fuel injector are located in the radial groove, the plunger assembly, the shell and the radial groove form a combustion chamber.

[0016] In this technical solution, a device with internal combustion engine functionality has four strokes: the first stroke includes the process of inhaling air and expelling exhaust gases; the second stroke includes the process of compressing air and inhaling air; the third stroke includes the process of expansion and compressing air; and the fourth stroke includes the process of expansion and expelling exhaust gases. The plunger movement in this device is similar to that of the aforementioned device with pump functionality, with the plunger continuously performing circular motion. The difference is that during the third and fourth strokes, when a radial groove moves to the position where the spark plug and the fuel injection port are located, the spark plug ignites, the fuel injection port sprays fuel, and the sprayed fuel burns in the combustion chamber. At this time, the gas in the combustion chamber expands, performing work on the plunger. Unlike conventional reciprocating plunger internal combustion engines, this device operates twice per cycle, resulting in high power density. The meshing rotation of the sheave and plunger allows for switching of the media on both sides of the plunger without changing the direction of rotation, thus avoiding energy waste. The lack of a complex crankshaft-connecting rod mechanism results in a simple structure and low cost. The device operates smoothly and with low noise.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This power device with pump function utilizes the rotation of the groove wheel to achieve continuous operation of the plunger without changing the direction of rotation of the plunger; thus, it avoids energy waste; has high delivery pressure and no liquid backflow; has small pulses and very stable output; and because the volume of fluid output per revolution is constant, it has the same pumping accuracy as a metering pump.

[0019] 2. This power structure with the function of an internal combustion engine has the advantages of a rotor internal combustion engine, such as good stability, low noise, simple structure, and no energy-consuming reciprocating motion. At the same time, it has a longer and larger combustion chamber than a plunger internal combustion engine, so that the fuel can be fully burned in the combustion chamber, further increasing the utilization efficiency of the fuel. At the same time, compared with an internal combustion engine of the same power, this device will have greater torque, smaller size, simpler structure and cheaper cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the power device with pump function of the present invention;

[0021] Figure 2This is a structural diagram of the locking mechanism of the power device with pump function of the present invention;

[0022] Figure 3 This is an overall diagram of the power device with pump function of the present invention;

[0023] Figure 4 It is a structural diagram of the power structure of the present invention having the function of an internal combustion engine;

[0024] Figure 5 This is a structural diagram of a power structure with internal combustion engine functions provided with double plungers according to the present invention;

[0025] Figure 6 This is a schematic diagram of the motion state of the power device with pump function of the present invention;

[0026] Figure 7 This is a schematic diagram of the motion state of the power structure with internal combustion engine function of the present invention;

[0027] Figure 8 It is a structural diagram of embodiment 4 of the present invention.

[0028] In the accompanying drawings: 1. Shell; 11. First through hole; 12. Second through hole; 13. First shell; 14. Second shell; 15. First cavity; 16. Second cavity; 2. Fixed block; 21. First arcuate surface; 22. Annular cavity; 23. Mounting hole; 3. Plunger assembly; 31. Active disk; 32. Plunger; 33. Transmission shaft; 4. Grooved wheel; 41. Radial groove; 42. Driven shaft; 5. Locking mechanism; 6. Telescopic device; 61. Mounting block; 62. Telescopic rod; 63. Elastic member; 64. Pushing disk; 65. Second arcuate surface; 651. Wave crest; 652. Wave trough; 7. Limiting turntable; 71. Limiting groove; 8. Spark plug; 9. Fuel injection port; 10. Combustion chamber. DETAILED DESCRIPTION

[0029] The drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate the embodiments, some components in the drawings may be omitted, enlarged, or reduced in size, and do not represent actual product dimensions. Those skilled in the art will understand that some well-known structures and their descriptions may be omitted from the drawings. The positional relationships depicted in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0030] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0032] Example 1

[0033] like Figure 1 and Figure 4 As shown, a power device with pump function includes a housing 1, a fixed block 2, a plunger assembly 3 as an active member and performing circular motion, and a sheave 4 cooperating with the plunger assembly 3 and serving as a driven member; the fixed block 2 is mounted in the housing 1; the sheave 4 is rotatably mounted in the housing 1, and a plurality of radial grooves 41 are provided on the sheave 4 along its outer circumference; a first arcuate surface 21 for contacting the outer circumference of the sheave 4 is formed on the fixed block 2; and a first arcuate surface 21 for contacting the outer circumference of the sheave 4 is formed on the inner side wall of the housing 1 and the outer circumferential side surface of the fixed block 2. The annular cavity 22 in which the plunger assembly 3 rotates; the plunger assembly 3 is partially movably installed in the annular cavity 22, and the outer wall of the plunger assembly 3 contacts the inner wall of the annular cavity 22; a first through hole 11 and a second through hole 12 are provided on the housing 1; when the plunger assembly 3 moves in the annular cavity 22 and the first arcuate surface 21 contacts the outer peripheral surface of the groove wheel 4, two adjacent radial grooves 41 are respectively connected to the annular cavity 22 and the first through hole 11 and the second through hole 12 are respectively connected to the two adjacent radial grooves 41.

[0034] like Figure 6As shown, in this embodiment, the center distance between the fixed block 2 and the groove wheel 4 remains unchanged, so that the first arc surface 21 can always be in contact with the outer peripheral surface of the groove wheel 4 during the movement of the plunger assembly 3; the two adjacent radial grooves 41 can be respectively connected to the annular cavity 33 to form a new cavity; the plunger assembly 3 divides the cavity into a first cavity 15 and a second cavity 16; the first through hole 11 is located in the first cavity 15 and is connected thereto, and the second through hole 12 is located in the second cavity 16 and is connected thereto. The movement process is as follows: the plunger assembly 3 performs circular motion driven by external power, moves from one of the radial grooves 41 to the annular cavity 22, and then moves to the other radial groove 41, and then drives the groove wheel 4 to rotate. In the process of pushing the groove wheel 4 to move, the area of the first through hole 11 exposed to the first cavity first gradually decreases and then gradually increases. Similarly, the area of the second through hole 12 exposed to the second cavity 16 first gradually decreases and then gradually increases until the plunger 32 returns to its original movement position, and the plunger assembly 3 performs periodic rotation again; since the plunger assembly 3 is constantly performing circular motion in the shell 1, the volume of the first cavity 15 is constantly increasing, forming a negative pressure, so that the fluid continuously flows from the first through hole 11 into the first cavity 15, and at the same time, the volume of the second cavity 16 is constantly shrinking, the pressure increases, and the fluid continuously flows out from the second through hole 12. The groove wheel 4 serves to separate the first through hole 11 from the second through hole 12 , and the plunger assembly 3 divides the cavity into two cavities, so that the first cavity 15 continuously absorbs fluid and the second cavity 16 continuously discharges fluid.

[0035] This device utilizes the rotation of the sheave 4 to ensure continuous operation of the plunger assembly 3 without changing the direction of rotation of the plunger assembly 3. Compared to reciprocating piston pumps, this device avoids the energy waste associated with reciprocating motion, resulting in high delivery pressure and no liquid backflow. When the plunger assembly 3 enters the sheave 4 tangentially, the sheave 4 rotates at zero speed, and when it exits, the speed is also zero, resulting in virtually no energy loss other than friction. The kinetic energy transferred by the plunger assembly 3 to the sheave 4 in the first half is fully returned to the plunger assembly 3 in the second half. This results in low resistance, small pulses, and very smooth output. The volume of fluid delivered per revolution of the plunger assembly 3 is constant, resulting in the same pumping accuracy as a metering pump. The plunger assembly 3 of this device performs circular motion within the annular cavity, instantly switching its rotational direction, thereby alternating the functions of the first and second through-holes 12. This device has a simple structure, requiring no additional structure or operation to switch the direction of the plunger assembly 3's movement, and enabling instantaneous switching between forward and reverse inputs. It should be noted that the fluid can be a liquid, gas, or other fluidic substance.

[0036] In addition, the device can also be used as a compressor with a high compression ratio and high energy utilization rate. When high-pressure air or high-pressure steam is connected to the first through hole 11, the device can also be used as a compressed air engine or steam engine. Compared with the mainstream steam engines and compressed air engines in the prior art, this pump has higher efficiency, simpler structure, lower cost and greater adaptability.

[0037] The device is used as a compressed air engine, and the ventilation process is as follows: the first through hole 11 is opened, and the second through hole 12 is opened; the plunger assembly 3 rotates, so that the volume of the first cavity 15 gradually increases, and air or steam enters the first cavity 15 from the first through hole 11; the volume of the second cavity 16 gradually decreases, and the air in the second cavity 16 is discharged through the second through hole 12, and the plunger assembly 3 rotates from one radial groove 41 to another radial groove 41, and then the plunger assembly 3 pushes the groove wheel 4 to rotate, and the plunger assembly 3 rotates one circle to return to the original position, and the compression process begins. Compression process: the first through hole 11 is opened and the second through hole 12 is closed, and the first through hole 11 continues to ventilate and enter the first cavity 15; the plunger assembly 3 continues to rotate and compresses the air or steam in the second cavity 16; after the plunger assembly 3 rotates to a certain position, the second through hole 12 can be opened to discharge the compressed air or steam. After the discharge, the second through hole 12 continues to be closed, and the plunger assembly 3 rotates to the initial position and starts to compress the air or steam in the second cavity 16; repeat the above actions and continue to compress. The plunger assembly 3 can complete a compression once it rotates one circle. Compared with the mainstream steam engines and compressed air engines in the existing technology, it has higher working efficiency and a simpler structure. It should be noted that if the compressed gas is not a special gas, the above ventilation process can be omitted and the compression process can be directly entered, which saves working time and is more efficient.

[0038] The working process of the steam engine is opposite to that of the compressed air engine described above. High-pressure gas enters the first cavity 15 from the first through-hole 11, performing work on the plunger assembly 3, causing it to rotate within the annular cavity 22. This causes the volume of the first cavity 15 to continuously increase, while the volume of the second cavity 16 to continuously decrease, thereby discharging the gas within the second cavity 16. As the plunger assembly 3 pushes the sheave 4 to rotate, causing the first through-hole 11 to transition from communicating with one radial groove 41 to communicating with the adjacent radial groove 41, the volume of the first cavity 41 decreases from a maximum value to zero. When the first through-hole 11 begins to communicate with the next radial groove 41, high-pressure gas continues to enter from the first through-hole 11. Due to the high pressure, this gas continuously pushes the plunger assembly 3 to perform work, thereby discharging the exhaust gas within the second cavity 12.

[0039] like Figure 1As shown, the plunger assembly 3 includes a driving disk 31, a plunger 32, and a transmission shaft 33 mounted within the housing 1. The plunger 32 is mounted on the driving disk 31 and positioned within the annular cavity 22. The transmission shaft 33 is disposed on and connected to the driving disk 31. The fixed block 2 is provided with a mounting hole 23, and the transmission shaft 33 is loosely fitted within the mounting hole 23. In this embodiment, the transmission shaft 33 rotates, driving the driving disk 31, thereby driving the plunger 3 to perform circular motion within the annular cavity 22. Furthermore, the plunger 3 is fixedly mounted on the driving disk 31 to maintain the stability of its movement.

[0040] This embodiment has two active disks 31, with the fixed block 2 sandwiched between them. The two ends of the plunger 32 are connected to the two active disks 31, respectively. During the rotation of the transmission shaft 33, active disks 31, and plunger 32, the two active disks 31 restrict the fixed block 2's axial rotational freedom along the transmission shaft 33. The first arcuate surface 21 is in constant contact with the outer circumference of the sheave 4, thereby limiting the fixed block 2's circumferential freedom. This allows the two active disks 31 and the outer circumference of the fixed block 2 to stably form the aforementioned annular cavity 22. Furthermore, the inner sidewall of the housing 1, the side surfaces of the active disks 31, and the outer surface of the fixed block 2 in this embodiment form the aforementioned annular cavity 22.

[0041] like Figure 2 and Figure 3 As shown, the housing 1 further includes a locking mechanism 5 for regulating the intermittent movement of the sheave 4; the locking mechanism 5 is mounted outside the housing 1 and connected to the sheave 4. As the plunger 32 moves sequentially through a radial groove 41, the annular cavity 22, and then another radial groove 41, the locking mechanism 5 and the first arcuate surface 21 can lock the sheave 4, preventing it from deflecting, which would make it difficult for the piston 32 to enter the other radial groove 41 and prevent it from returning to its original position.

[0042] In this embodiment, the locking mechanism 5 includes a position sensor, an electric actuator, an electromagnetic relay, and a controller. The position sensor and electromagnetic relay are electrically connected to the controller, which in turn is connected to the electric actuator, which in turn is connected to the sheave to lock the sheave. The position sensor detects the position of the plunger 32. When the plunger 32 leaves the sheave 4, the position sensor transmits a signal to the controller. Upon receiving this signal, the controller closes the electromagnetic relay, activating the electric actuator and locking the sheave. Specifically, the electric actuator can be an electromagnetic clutch, electromagnetic brake, or other actuator.

[0043] Example 2

[0044] This embodiment is similar to the above embodiment, except that Figure 2As shown, the locking mechanism 5 includes a telescopic device 6 and a limiting disc 7 mounted on the housing 1. A driven shaft 42 is provided on the sheave 4, which is movably mounted on the housing 1 and partially extends out of the housing 1. The limiting disc 7 is mounted on the driven shaft 42. The limiting disc 7 is provided with a plurality of limiting grooves 71 along the circumferential direction. The limiting disc 7 rotates to accommodate the telescopic end of the telescopic device 6, which movably abuts against the outer circumferential surface of the limiting disc 7 or the limiting grooves 71. The limiting disc 7 and the sheave 4 are both mounted on the driven shaft 42 to restrict the rotation of the sheave 4. Specifically, as the piston 32 moves within the radial groove 41 or the annular cavity 22, the telescopic end of the telescopic device 6 abuts against the limiting groove 71. As the piston 32 pushes the sheave 4 to move, the telescopic end of the telescopic device 6 retracts, and the limiting disc 7 rotates with the sheave 4. This process can be completed instantly.

[0045] like Figure 2 As shown, the telescopic device 6 includes a mounting block 61 provided on the shell 1, a telescopic rod 62 movably installed in the mounting block 61, an elastic member 63 provided on the telescopic rod 62 and a pushing plate 64, one end of the elastic member 63 is fixed on the telescopic rod 62, and the other end is connected to the mounting block 61; a second arc-shaped surface 65 recessed toward the center is provided on the pushing plate 64; when one end of the telescopic rod 62 movably abuts against the outer peripheral surface of the pushing plate 64, the other end movably abuts in the limiting groove 71; when one end of the telescopic rod 62 movably abuts against the second arc-shaped surface 65 of the pushing plate 64, the other end movably abuts against the outer peripheral surface of the limiting turntable 7; the transmission shaft 33 is movably mounted on the shell 1 and partially extends outside the shell 1, and the pushing plate 64 is mounted on the transmission shaft 33. In this embodiment, the push plate 64 rotates with the transmission shaft 33. When the piston 32 pushes the sheave 4 to rotate, the limit disc 7 also rotates. One end of the telescopic rod 62 abuts the second curved surface 65, and the other end abuts the outer circumference of the limit disc 7, with the elastic member 63 in a compressed state. When the piston 32 completes its push, the elastic member 63 pushes the telescopic rod 62 into the limit groove 71, so that one end of the telescopic rod 62 abuts the outer circumference of the push plate 64 and the other end abuts within the limit groove 71. As the plunger 32 moves within the radial groove and annular cavity 22, the elastic member 63 remains in a neutral state. This structure allows the telescopic rod 62 to continuously reciprocate, periodically locking the limit disc 7. The elastic member 63 in this embodiment allows the telescopic rod 62 to instantly pop out, ensuring that it can smoothly enter the limit groove 71.

[0046] like Figure 2 As shown, one end of the elastic member 63 is fixedly connected to the end of the telescopic rod 62 away from the limiting turntable 7, and the other end is connected to the mounting block 61 to prevent the elastic member 63 from obstructing the telescopic rod 62 from entering the limiting groove 71. Specifically, the elastic member 63 can be a spring.

[0047] like Figure 2As shown, the connection between the second arc surface 65 and the side surface of the push plate 64 is an arc structure, so that one end of the telescopic rod 62 can smoothly switch the abutment surface to reduce pulses.

[0048] like Figure 2 As shown, the second curved surface 65 is wavy, having at least one crest 651 and one trough 652. When the plunger 32 pushes the sheave 4 to move, and the telescopic rod 62 retracts from the limiting groove 71, the limiting turntable 7 rotates, causing the side of the limiting groove 72 to apply lateral pressure to the telescopic rod 62. As the other end of the telescopic rod 62 moves from a trough 652 to a crest 651, it is also subjected to a reaction force in the opposite direction of the pressure, maintaining the stability of the telescopic rod 62 and allowing it to smoothly exit the limiting groove 72.

[0049] Example 3

[0050] This embodiment is similar to any of the above embodiments, except that Figure 4 As shown, a power structure with internal combustion engine function includes a power device with pump function as in any of the above embodiments, and a spark plug 8 and a fuel injection port 9 are also provided on the housing 1, and the spark plug 8 and the fuel injection port 9 are located between the first through hole 11 and the second through hole 12; when the plunger assembly 3 pushes the groove wheel 4 to move so that a radial groove 41 moves so that the spark plug 8 and the fuel injection port 9 are located in the radial groove 41, the plunger assembly 3, the housing 1 and the radial groove 41 form a combustion chamber 10.

[0051] The device of this embodiment is to take four strokes as a cycle, and one rotation of the plunger 32 is one stroke. The four strokes are: the first stroke includes the process of inhaling air and discharging exhaust gas, the second stroke includes the process of compressing air and inhaling air, the third stroke includes the process of expansion and compressing air, and the fourth stroke includes the process of expansion and discharging exhaust gas.

[0052] In the initial state, the sheave 4 is locked by the locking mechanism 5 outside the housing 1 to prevent the sheave 4 from deviating; in the movement stage, the locking mechanism 5 is opened, and the plunger 32 drives the sheave 4 to rotate.

[0053] Specifically, the motion process of the first stroke is as follows: the first through hole 11 and the second through hole 12 are both open, the plunger 32 makes a circular motion, discharges the exhaust gas in the second cavity 16, and at the same time the first cavity 15 takes in air. When the plunger 32 rotates to the position where the spark plug 6 and the fuel injection port 7 are located (i.e., in the combustion chamber 10, as shown in FIG. Figure 7 a), close the second through hole 12 and enter the second stroke.

[0054] The motion process of the second stroke is as follows: the first through hole 11 is in the open state, and the second through hole 12 is in the closed state; the plunger 32 rotates one circle, compressing the air in the second cavity 16, and the first cavity 15 expands, sucking air from the first through hole 11; when the plunger 32 moves back to the position where the spark plug 6 and the fuel injection port 7 are located (i.e., in the combustion chamber 10, as shown in FIG. Figure 7 a), close the first through hole 11; at this time, the fuel injection port 7 sprays fuel, the spark plug 6 ignites, and enters the third stroke.

[0055] The motion process of the third stroke is as follows: the first through hole 11 and the second through hole 12 are both in the closed state; the air in the first cavity 15 expands, pushing the plunger 3 to rotate and compressing the air in the second cavity 16; when the plunger 3 moves to the position where the spark plug 6 and the fuel injection port 7 are located (i.e., in the combustion chamber 10, as shown in FIG. Figure 7 a), the second through hole 12 is opened, the fuel injection port 7 sprays fuel, the spark plug 6 ignites, and enters the fourth stroke.

[0056] The fourth stroke is as follows: During the fourth stroke, the air in the first chamber 15 expands, driving the plunger 32 to rotate and expelling the exhaust gas from the second chamber 16, thus completing a cycle. In this cycle, the plunger 32 rotates four times, and the device performs a total of two operations, resulting in high power density.

[0057] This device is different from an ordinary reciprocating piston internal combustion engine. This device works twice in one cycle and has a high power density. This device utilizes the meshing rotation of the groove wheel 4 and the plunger 32 to realize the switching of the medium in the first cavity 15 and the medium in the second cavity 16 without changing the direction of rotation. There is no reciprocating motion of the connecting rod and the plunger, which avoids energy waste. This device does not have a complex crankshaft connecting rod mechanism, has a simple structure, is cheap to manufacture, and runs smoothly with low noise. This device has a large air compression ratio, high fuel utilization, and can be directly compression-ignited like a diesel engine. Compared with the internal combustion engine of the prior art, the torque of this device will be greater and will have greater advantages in heavy loads. In addition, according to actual needs, the plunger 32 of this device can be rotated in both forward and reverse directions, and the functions of the first through hole 11 and the second through hole 12 can be interchangeable.

[0058] Further, such as Figure 5 As shown, multiple plunger assemblies 3 can be provided to divide the annular cavity 22 into multiple cavities, and multiple first arcuate surfaces 21 can be provided on the fixed block 2. Alternatively, two sheaves 4 can be provided to increase the volume of the annular cavity 22 and achieve more functions. Furthermore, multiple locking mechanisms 5 can be provided to prevent the sheaves 4 from shifting, and multiple second arcuate surfaces 65 can be provided on the push plate.

[0059] Example 4

[0060] This embodiment is similar to Example 1, except that Figure 8As shown, this embodiment has two annular cavities 22, which are respectively arranged on both sides of the groove wheel 4; two plunger assemblies 3 are arranged to move in the two annular cavities 22 respectively. Specifically, the two plunger assemblies 3 move in the two annular cavities 22 respectively, one forward and one backward.

[0061] In some other embodiments, the piston assembly 3 can also move inward to reduce the impact force of the piston assembly 3 on the groove wheel 4.

[0062] Three annular cavities 22 are provided and evenly distributed along the circumference of the groove wheel 4 , and five plunger assemblies 3 are correspondingly provided in each annular cavity 22 .

[0063] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to explain all the above embodiments here.

[0064] Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A power device with pump function, characterized in that: The invention comprises a housing (1), a fixed block (2), a plunger assembly (3) as an active part and performing circular motion, and a groove wheel (4) cooperating with the plunger assembly (3) and serving as a driven part; the fixed block (2) is installed in the housing (1); the groove wheel (4) is rotatably installed in the housing (1), and the groove wheel (4) is provided with a plurality of radial grooves (41) along its outer peripheral surface; the fixed block (2) is formed with a first arcuate surface (21) for contacting the outer peripheral surface of the groove wheel (4); the inner side wall of the housing (1) and the outer peripheral side surface of the fixed block (2) are formed with a ring for the rotation of the plunger assembly (3); The annular cavity (22) is provided with a piston assembly (3) and a piston rod (4). The piston assembly (3) is partially movably installed in the annular cavity (22), and the outer wall of the piston assembly (3) contacts the inner wall of the annular cavity (22); a first through hole (11) and a second through hole (12) are provided on the housing (1); when the piston assembly (3) moves in the annular cavity (22) and the first arc surface (21) contacts the outer peripheral surface of the groove wheel (4), two adjacent radial grooves (41) are respectively connected to the annular cavity (22) and the first through hole (11) and the second through hole (12) are respectively connected to the two adjacent radial grooves (41); The plunger assembly (3) comprises a driving disk (31), a plunger (32), and a transmission shaft (33) installed in the housing (1); the plunger (32) is installed on the driving disk (31) and located in the annular cavity (22); the transmission shaft (33) is provided on the driving disk (31) and connected thereto; a mounting hole (23) is provided on the fixed block (2); and the transmission shaft (33) is clearance-fitted with the mounting hole (23); It also includes a locking mechanism (5) for adjusting the intermittent movement of the sheave (4); the locking mechanism (5) is installed outside the housing (1) and is connected to the sheave (4); The locking mechanism (5) includes a position sensor, an electric actuator, an electromagnetic relay, and a controller; the position sensor and the electromagnetic relay are electrically connected to the controller respectively, the electromagnetic relay is connected to the electric actuator, and the electric actuator is connected to the sheave (4) to lock the sheave (4).

2. The power device with pump function according to claim 1, characterized in that: There are two active disks (31), the fixed block (2) is clamped between the two active disks (31), and both ends of the plunger (32) are respectively connected to the two active disks (31).

3. A power device with pump function, characterized in that: The invention comprises a housing (1), a fixed block (2), a plunger assembly (3) as an active part and performing circular motion, and a groove wheel (4) cooperating with the plunger assembly (3) and serving as a driven part; the fixed block (2) is installed in the housing (1); the groove wheel (4) is rotatably installed in the housing (1), and the groove wheel (4) is provided with a plurality of radial grooves (41) along its outer peripheral surface; the fixed block (2) is formed with a first arcuate surface (21) for contacting the outer peripheral surface of the groove wheel (4); the inner side wall of the housing (1) and the outer peripheral side surface of the fixed block (2) are formed with a ring for the rotation of the plunger assembly (3); The annular cavity (22) is provided with a piston assembly (3) and a piston rod (4). The piston assembly (3) is partially movably installed in the annular cavity (22), and the outer wall of the piston assembly (3) contacts the inner wall of the annular cavity (22); a first through hole (11) and a second through hole (12) are provided on the housing (1); when the piston assembly (3) moves in the annular cavity (22) and the first arc surface (21) contacts the outer peripheral surface of the groove wheel (4), two adjacent radial grooves (41) are respectively connected to the annular cavity (22) and the first through hole (11) and the second through hole (12) are respectively connected to the two adjacent radial grooves (41); The plunger assembly (3) comprises a driving disk (31), a plunger (32), and a transmission shaft (33) installed in the housing (1); the plunger (32) is installed on the driving disk (31) and located in the annular cavity (22); the transmission shaft (33) is provided on the driving disk (31) and connected thereto; a mounting hole (23) is provided on the fixed block (2); and the transmission shaft (33) is clearance-fitted with the mounting hole (23); It also includes a locking mechanism (5) for adjusting the intermittent movement of the sheave (4); the locking mechanism (5) is installed outside the housing (1) and is connected to the sheave (4); The locking mechanism comprises a telescopic device (6) and a limiting turntable (7) provided on the housing (1); a driven shaft (42) is provided on the sheave (4); the driven shaft (42) is movably mounted on the housing (1) and partially extends out of the housing (1); the limiting turntable (7) is mounted on the driven shaft (42); the limiting turntable (7) is provided with a plurality of limiting grooves (71) along a circumferential direction; the limiting turntable (7) rotates to cooperate with the telescopic end of the telescopic device (6) to movably abut against the outer peripheral surface of the limiting turntable (7) or the limiting grooves (71); The telescopic device (6) comprises a mounting block (61) provided on the housing (1), a telescopic rod (62) movably mounted in the mounting block (61), an elastic member (63) provided on the telescopic rod (62), and a pushing disk (64); one end of the elastic member (63) is fixed to the telescopic rod (63), and the other end is connected to the mounting block (61); a second arcuate surface (65) recessed toward the center is provided on the pushing disk (64); when one end of the telescopic rod (62) movably abuts against the outer peripheral surface of the pushing disk (64), the other end movably abuts against the limiting groove (71); when one end of the telescopic rod (62) movably abuts against the second arcuate surface (65) of the pushing disk (64), the other end movably abuts against the outer peripheral surface of the limiting rotating disk (7); the transmission shaft (33) is movably mounted on the housing (1) and partially extends outside the housing (1); the pushing disk (64) is mounted on the transmission shaft (33).

4. The power device with pump function according to claim 3, characterized in that: One end of the elastic member (63) is fixedly connected to the end of the telescopic rod (62) away from the limiting turntable (7), and the other end is connected to the mounting block (61).

5. The power device with pump function according to claim 3, characterized in that: The connection between the second arc-shaped surface (65) and the side surface of the pushing plate (64) is an arc structure; and the second arc-shaped surface (65) is wavy, having at least one crest (651) and one trough (652).

6. The power device with pump function according to claim 3, characterized in that: There are two active disks (31), the fixed block (2) is clamped between the two active disks (31), and both ends of the plunger (32) are respectively connected to the two active disks (31).

7. A power structure with internal combustion engine function, characterized in that: The invention comprises a power device with a pump function as described in any one of claims 1 to 6, wherein a spark plug (8) and a fuel injection port (9) are further provided on the housing (1), and the spark plug (8) and the fuel injection port (9) are located between the first through hole (11) and the second through hole (12); when the plunger assembly (3) pushes the groove wheel (4) to move so that a radial groove (41) moves so that the spark plug (8) and the fuel injection port (9) are located in the radial groove (41), the plunger assembly (3), the housing (1) and the radial groove (41) form a combustion chamber (10).

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