Pulse rotary spraying assembly of pulse rotary cleaning device for cleaning deposited carbon in air cylinder

Abstract

The invention discloses a self-rotating cleaning nozzle for cleaning carbon deposits in an air cylinder and a piston ring of a fuel engine, and belongs to the field of engine carbon deposit cleaning. One end of the pulse rotary spraying assembly is connected with an electromagnetic valve seat, and the other end of the pulse rotary cleaning assembly can be directly installed on a spark plug hole to be connected with a combustion chamber, so that a hollow gas conveying cavity is formed. When the piston is located at the top dead center of the air inlet stroke, compressed air is injected into the air cylinder to push the piston to do work, and therefore the engine works continuously. The engine cleaning device has the beneficial effects that an engine is cleaned in the moving process, residues are discharged from the air inlet cavity channel, and the residues cannot cause secondary pollution to the space of a combustion chamber and three-way catalysis; compressed air of the sector pushes the spraying nozzle to rotate and spray out along the center shaft, 360-degree surrounding type cleaning can be conducted on the space of the combustion chamber, and no cleaning blind area is left.

Description

Technical Field

[0001] The present application relates to the field of engine carbon deposit cleaning, and in particular to a pulse rotary jet assembly of a pulse rotary cleaning device for cleaning carbon deposits in a cylinder. Background Art

[0002] During the operation of the engine, the carbon deposits produced by incomplete combustion of fuel will be deposited on the cylinder, piston, valve and other parts, which will cause difficulty in starting the engine, idle jitter, power reduction, increased noise, increased fuel consumption, and excessive exhaust emissions. Severe carbon deposits will cause engine failures, such as valve jamming leading to leakage and burning of valves, and carbon deposits that fall and deposit between the piston and the cylinder wall will cause excessive wear of the cylinder wall and piston. Some models will also form a carbon deposit and oil sludge colloid mixture in the piston ring groove due to carbon deposits and the oil on the crankcase, causing piston ring jamming, poor sealing and burning oil, affecting the working efficiency and life of the engine and increasing exhaust emissions. Cleaning the carbon deposits and colloids in the combustion chamber and piston rings can restore the power output of the engine, improve the combustion efficiency of fuel, reduce fuel consumption, and reduce harmful exhaust emissions.

[0003] In the relevant technical field, there are four major types of carbon cleaning methods:

[0004] 1. Soaking method: Inject foam or liquid cleaning agent into the combustion chamber through the spark plug hole to soak and decompose carbon deposits and colloids. The disadvantage is that the soaking time is long. Due to the effects of physics and gravity, the foam will gradually disappear, and the cleaning liquid will flow to the crankcase through the piston gap, resulting in poor cleaning effect of carbon deposits on the top of the combustion chamber, and carbon deposits will be deposited in the piston ring groove, causing secondary pollution. At the same time, the residue after soaking is difficult to clean up, and it will also pollute the intake manifold and three-way catalytic converter for the second time when using compressed air to clean it. The residue entering the intake manifold will be sucked into the combustion chamber when the engine is started again and block the three-way catalytic converter, resulting in tertiary pollution of the combustion chamber and the three-way catalytic converter.

[0005] 2. Carbon deposit removal fuel additive: Its characteristic is to add additives to the fuel tank, and the cleaning agent and fuel are burned together during driving, and carbon deposits are eliminated during the combustion process. Its disadvantage is that the cleaning process is long. One bottle of additive is added to a tank of fuel, and it takes hundreds of kilometers to run a tank of fuel. Generally, manufacturers and service providers require 2-6 bottles to be added for one cleaning process, and 2-6 tanks of fuel are added to complete the cleaning, so the entire cleaning process requires driving hundreds to thousands of kilometers. And the residues washed away will clog the three-way catalytic converter, and the residues after combustion are discharged into the air, causing secondary pollution to the environment.

[0006] 3. Piston ring releaser: Adding piston ring releaser to the engine lubricating oil will take thousands of kilometers to take effect. The releaser changes the performance of the lubricating oil. Long-term high-load operation of the engine will cause certain wear and tear on the parts that rely on lubricating oil.

[0007] 4. Reciprocating suction cleaning machine (known in the market as pulse carbon removal cleaning machine or in-cylinder pulse cycle carbon removal cleaning machine): that is, the cleaning liquid is injected into the cylinder through the spark plug hole and repeatedly The carbon deposits in the cylinder are peeled off and dissolved in the cleaning fluid, and the residual liquid is finally sucked out and blown clean with high-pressure air. The disadvantages are: ① The dissolved residue will be deposited in the gap between the cylinder wall and the piston and the gap between the piston ring; ② Some of the open valves will cause the residue to flow into the intake manifold and exhaust manifold during the suction process, polluting the intake cavity and the exhaust cavity, and further dissolving the carbon deposits in the intake cavity. It is difficult for compressed air to remove the residue in the intake cavity, which causes difficulty in starting for the first time. After starting, the residue in the intake manifold is sucked into the cylinder to cause secondary pollution, and contaminates and blocks the three-way catalytic converter through the exhaust chamber.

[0008] 5. Use walnut sand or dry ice to clean carbon deposits on the intake manifold: The intake manifold needs to be removed, and the carbon deposits on the intake manifold and the back of the valves need to be sprayed with a dry ice machine or walnut sand cleaning machine. The disassembly and assembly workload is large and the cleaning process takes a long time.

[0009] 6. Repair method: Dismantle the engine to remove carbon: It is necessary to dismantle most parts of the engine. The disadvantages are that it takes a long time, uses a lot of consumables, has a large workload, is expensive, and the disassembly process may change the original vehicle assembly requirements and affect the engine performance and life.

[0010] Invention patent content

[0011] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the specific implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed, nor is it intended to limit the scope of the technical solution claimed.

[0012] In order to solve the technical problems mentioned in the above background technology section, some implementation cases of the present application provide a pulse rotation cleaning method for cleaning carbon deposits in the cylinder, which comprehensively flushes and decomposes the combustion chamber space, intake manifold chamber and exhaust manifold chamber formed in the cylinder, piston ring groove, and carbon deposits and colloid substances attached to the piston, piston ring, and valve arranged in the cylinder when the engine is static or running; the pulse rotation cleaning component is installed in the spark plug mounting hole or the injector mounting hole;

[0013] Said Pulse rotary cleaning deviceIncluding: 1. Multifunctional solenoid valve assembly, 2. Pulse rotary cleaning assembly; 3. Control system assembly, 4. Liquid storage tank assembly, etc.

[0014] 1. The multifunctional solenoid valve assembly includes: a liquid adding solenoid valve, a main control solenoid valve, a high pressure closed normally open exhaust valve, and a valve seat;

[0015] The liquid adding solenoid valve is used to add liquid cleaning agent into the flowing compressed air; the main electronically controlled solenoid valve is used to inject compressed air or two-fluid mixed compressed air in different cylinder strokes; the "high-pressure closing exhaust valve" is used to close when compressed air is injected into the combustion chamber (normal pressure state and the cylinder is open during the compression stroke); the valve seat combines or connects the above functions together.

[0016] 2. The pulse rotary cleaning assembly includes: a flow guide, a locking nut, a spray pipe housing, a spray pipe, and an elastomer; one end of the flow guide is connected to the valve seat, and the other end is connected to the spray pipe housing to form a hollow flow guide chamber; the connection between the flow guide and the sprayer housing is locked with a locking nut to prevent the flow guide from detaching from the spray pipe housing when the pulse rotary cleaning assembly is removed from the cylinder.

[0017] In the present application, the compressed air includes pure compressed air or a two-fluid mixed gas with a cleaning agent added; the two-fluid mixed gas can also use solid particles instead of liquid cleaning agents; the solid particles refer to particles with cleaning functions such as dry ice or walnut sand.

[0018] One or more eccentric injection ports or injection holes are formed on the side of the injection pipe head; the eccentric angle depends on the required rotation speed and injection direction, and the injection pipe head is a receiving surface formed by a closed or semi-closed structure; the rebound effect of the receiving surface causes the compressed air entering the injection pipe to be ejected in the side and rear direction, and the eccentric injection port forms an eccentric guide cavity, and the compressed air ejected from the water nozzle guide cavity causes the injection pipe to rotate relative to the water nozzle housing; the injection direction intersects with the top of the combustion chamber, so that the compressed air performs high-pressure flushing on the top of the combustion chamber and rebounds to the top of the piston and the cylinder wall, and the eccentric compressed air forms a vortex airflow in the cylinder, and the residue in the cylinder is discharged from the open valve along with the compressed air.

[0019] Furthermore, the eccentric injection guide cavity forms an angle of about 35° backward with the injection pipe; the guide cavity allows the compressed air to be ejected in a fan-shaped direction to the right or left rear, thereby flushing the carbon deposits on the top of the cylinder;

[0020] Furthermore, the injection pipe is installed with an elastic body. When compressed air enters, the injection pipe overcomes the spring pressure and pushes into the cylinder to the first abutment surface. When the compressed air is turned off, the injection pipe returns to the second abutment surface under the rebound force of the elastic body. Each time the injection is performed, the injection pipe rotates a certain angle along the axis.

[0021] Furthermore, the injection pipe is advanced 10-15 mm into the cylinder during injection, so that the injected compressed air can completely cover a fan-shaped area at the top, and the advancement distance is less than the distance between the piston and the top of the combustion chamber to avoid the injection nozzle head from colliding with the top of the piston.

[0022] Furthermore, when the injection port rotates to the valve position, the ejected compressed air washes the carbon deposits on the back of the opened valve and the intake manifold.

[0023] Furthermore, each time the injection is performed, the injection pipe rotates about 1-30° to complete the cleaning of a sector surface; the next sector surface overlaps part of the previous sector surface; so as to achieve the effect of cleaning without blind spots on the top of the cylinder; in the automatic cleaning mode, each injection time is 4-10 milliseconds, which can be set as needed. It takes about 30 seconds to complete a 360-degree rotation cleaning, and the number of injections or time can be set according to the severity of carbon deposits in the combustion chamber.

[0024] Furthermore, one end of the pulse rotary cleaning component is connected to the solenoid valve or the manual air source trigger, and the other end is installed on the spark plug hole of the engine; the pulse rotary cleaning component is connected to the solenoid valve seat by a quick connector.

[0025] Furthermore, the two-fluid compressed air is a mixture of cleaning fluid or dry ice particles added to compressed air. Pure compressed air can be used during the power stroke, and cleaning fluid or dry ice particles can be added during the intake stroke.

[0026] The beneficial effects of this application are:

[0027] 1. The engine is cleaned during movement, and the residue is discharged from the intake cavity. The residue will not cause secondary pollution to the combustion chamber space and the three-way catalytic converter.

[0028] 2. The compressed air on the fan surface drives the jet nozzle to rotate along the central axis and spray out, which can cover 360° of the combustion chamber space.

[0029] Surround cleaning leaves no blind spots.

[0030] 3. The vortex airflow generated by the eccentric compressed air flow can blow away the residue in the combustion chamber in all directions.

[0031] 4. When the intake valve is opened, compressed air directly flushes the back of the valve and the intake manifold cavity, eliminating the tedious and time-consuming disassembly and assembly of the intake manifold.

[0032] 5. Use the four stroke signals of the engine to control the injection timing of the liquid adding solenoid valve and the main solenoid valve, accurately control the cleaning during continuous operation of the engine, realize simultaneous cleaning of multiple cylinders, and improve cleaning efficiency.

[0033] 6. The piston continuously reciprocates, pushing the residue in the piston ring groove and on the cylinder wall to the top of the cylinder wall so that the residue can be thoroughly flushed and discharged.

[0034] 7. The telescopic function of the injection pipe enables the compressed air to be injected into the top of the cylinder without causing the injection pipe to collide with the top of the piston.

[0035] 8. The cleaning process is carried out in a closed environment inside the equipment and is recovered through a vacuum cleaner, which will not cause leakage to pollute the external parts of the engine. The cleaning residues can be collected by a vacuum cleaner for harmless treatment, and harmful substances generated during the cleaning process will not be discharged into the ground and sewers.

[0036] 9. Compared with fuel additives, the use of this application will not discharge carbon deposit decomposition products into the road and the atmosphere during driving, and the cleaning time only takes a few minutes to tens of minutes.

[0037] 10. Compared with the immersion method that takes several hours to more than 12 hours to solve the oil burning phenomenon caused by piston ring sticking, the use of this application only requires adding piston ring solvent when cleaning carbon deposits in the cylinder, which improves the efficiency by dozens of times.

[0038] 11. Compared with the method of adding piston ring slow-release agent to the engine lubricating oil to solve the oil burning problem caused by piston ring sticking, this application has a short cleaning time and a small load, and will hardly cause wear to engine parts during the cleaning process.

[0039] 12. Compared with the reciprocating suction cleaning method, the present application always uses pure two-fluid compressed air for flushing, and collects the residues in the cylinder in real time through a vacuum cleaner. The concentration of residues in the cylinder will not increase, and the dissolved carbon decomposition products will not be deposited between the cylinder wall and the piston and piston ring.

[0040] 13. Compared with the traditional method of disassembling the engine to clean carbon deposits, the use of this application takes a short time to clean, has low cost, and is easy to operate. It will not change the original vehicle assembly requirements and affect the engine performance and life.

[0041] 14. Using the dry ice cleaning function of this application can achieve better cleaning effect on cylinders with serious carbon deposits, and it is more convenient to recover the carbon deposits after cleaning.

[0042] 15. One end of the pulse rotary cleaning assembly is connected to the solenoid valve through a quick connector, and the other end is installed in the mounting hole of the spark plug, making the installation process convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0044] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0045] In the attached picture:

[0046] Figure 1 It is the name of the relevant parts and components of the combustion chamber, and the state of this application installed in the spark plug hole.

[0047] Figure 2 It is the front view of the present application (with a box marking the reserved position of the controller);

[0048] Figure 3 It is the left view of this application (with a box marking the reserved position of the controller);

[0049] Figure 4 It is a top view of the present application (with a box marking the reserved position of the controller);

[0050] Figure 5 yes Figure 2 A first cross-sectional view mainly shows the structure of the compressed air intake channel in the valve seat of the main solenoid valve;

[0051] Figure 6 yes Figure 2 The second cross-sectional view mainly shows the structural position of the main control solenoid valve chamber and the pulse rotary cleaning component chamber;

[0052] Figure 7 yes Figure 2 The third sectional view mainly shows the structure of the high pressure closed exhaust valve in the exhaust cavity of the valve seat;

[0053] Figure 8 yes Figure 3 A first cross-sectional view mainly shows the position between the air intake chamber in the main control solenoid valve and the high pressure closing solenoid valve;

[0054] Fig. 9 yes Figure 3 The second cross-sectional view mainly shows the internal structure of the main control solenoid valve and the valve seat;

[0055] Fig.10 yes Figure 7 The enlarged view of the A part of the high pressure shut-off valve core in the open and closed positions mainly shows the working principle of the high pressure shut-off exhaust valve core;

[0056] Fig.11 yes Figure 6 The enlarged view of part B mainly shows two positions of the injection pipe at the second abutment surface and the first abutment surface in the pulse rotary cleaning assembly;

[0057] Fig.12 It is an embodiment Figure 6 A schematic structural diagram of a part of the structure of the second abutting surface and the first abutting surface is mainly shown.

[0058] Reference numerals:

[0059] 1. Pulse rotary cleaning component; 2. Exhaust manifold; 2-1. Exhaust manifold chamber; 3. Intake manifold; 3-1. Intake manifold chamber; 4. Exhaust valve; 4-1. Back of exhaust valve; 5. Intake valve; 5-1. Back of intake valve; 6. Top of piston; 7. Top of combustion chamber; 8. Cylinder wall; 9. Combustion chamber; 10. Piston ring; 11. Piston; 21. Guide tube; 21-1. Guide tube chamber; 21-2. First abutment surface; 21-3. Quick-connect male head; 22. Two-way thread locking nut; 22-1; Two-way thread; 25. Injection pipe housing; 25-1. Second abutment surface; 26. Elastic member; 27. Injection pipe; 27-1. Injection port; 27-2. Injection direction; 27-3. Diffusion cavity; 27-4. Injection chamber; 27-5. Receiving surface; 28. Solenoid valve seat. DETAILED DESCRIPTION

[0060] Embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present application. It should be understood that the drawings and embodiments of the present application are only for exemplary purposes and are not intended to limit the scope of protection of the present application.

[0061] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other.

[0062] It should be noted that the concepts such as "first" and "second" mentioned in this application are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0063] It should be noted that the modifications of "one" and "plurality" mentioned in the present application are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0064] The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0065] Reference Figure 1-12 ;

[0066] A pulse rotary jet assembly of a pulse rotary cleaning device for cleaning carbon deposits in a cylinder, wherein a combustion chamber space, a spark plug mounting hole or a fuel injector mounting hole, an intake manifold chamber, and an exhaust manifold chamber are formed in the cylinder. The cylinder contains a piston located in the combustion chamber space, a piston ring, and a valve for controlling the opening and closing of an intake cavity and an exhaust cavity; the cylinder is a cylinder inside an engine. Note: When the engine is running normally, the piston will move back and forth in the combustion chamber space. The intake cavity sucks in air and discharges the exhaust gas after combustion through the exhaust cavity. The pulse rotary cleaning assembly is installed in the spark plug mounting hole or the fuel injector mounting hole.

[0067] The pulse rotary cleaning assembly comprises: a guide tube, a two-way threaded locking nut, a jet tube housing, an elastomer, and a jet tube; a guide chamber for compressed air is formed in the pulse rotary cleaning assembly; one or more jet ports deviated from the center line of the jet tube are formed on the wall of the jet tube; the angle between the jet port and the center line forms a guiding slope, so that when the compressed air is ejected outward along the jet port, the jet tube can rotate relative to the guide tube; the ejection direction intersects with the top of the combustion chamber, the compressed air is ejected at the top of the combustion chamber space and rebounds to the cylinder wall and the top of the piston, so as to achieve the purpose of flushing carbon deposits, and the compressed air deviating from the center forms a vortex airflow, which is discharged through the valve and the residue is collected and separated by an external vacuum cleaner.

[0068] There are two cleaning methods, manual cleaning and automatic cycle cleaning:

[0069] The working principle of automatic cycle cleaning in this application:

[0070] Corresponding to the four strokes of the engine itself, the automatic control device of the present application is provided with the function of automatically collecting the cylinder working signals, and can set the opening timing and delay time of the solenoid valve according to the signals obtained from the cylinder operation, automatically control the injection timing, and can automatically complete the cleaning work of all engine cylinders at the same time.

[0071] The following are the cleaning processes corresponding to the four trips:

[0072] Intake stroke--intake valve opens--compressed air is injected;

[0073] Compression stroke--intake and exhaust valves close--automatic exhaust valve opens;

[0074] Power stroke - intake and exhaust valves closed - compressed air injected;

[0075] Exhaust stroke - exhaust valve opens - exhaust gas is discharged.

[0076] 1. The manual cleaning process is: by turning the crankshaft, the intake valve or exhaust valve is placed in an open state to facilitate the discharge of residues from the valve and the intake manifold cavity; manually operate the external manual air source trigger to intermittently spray the mixed gas into the combustion chamber in a point-by-point manner, which has a similar effect to automatic cleaning, but can only clean one cylinder at a time.

[0077] 2. The process of automatic cleaning is: the control system collects the top dead center signal of the piston in the engine cylinder stroke, and starts the opening time and delay time of the liquid filling solenoid valve and the main control solenoid valve. It should be noted that before starting this embodiment, it is necessary to cut off the fuel pipeline and stop supplying fuel to the fuel injector. After all preparations are ready, it is necessary to use a key or a one-button starter to make the crankshaft move more than half a circle (about one second) to drive the piston in the engine cylinder to make four strokes of reciprocating motion.

[0078] The embodiment of the present application begins with: using a key or a one-button starter to allow the crankshaft to move for more than half a turn (about one second), and after the solenoid valve starts working, the start key or the one-button starter button can be released, and the present application will keep the engine running under the impetus of compressed air;

[0079] ①. At this time, the piston of a cylinder enters the piston top dead center of the working stroke. After the controller receives the top dead center signal, the main solenoid valve opens to inject compressed air into the cylinder. At this time, the valve core and elastic body of the high-pressure closed exhaust valve are under the pressure of the compressed air, the valve core closes, and at the same time pushes the piston downward to do work. At the same time, the crankshaft and the pistons of other cylinders enter the motion state and perform their respective working strokes. When the piston of this cylinder moves downward to the bottom dead center under the action of compressed air, the solenoid valve closes the air intake and ends the compression stroke. At the same time, the "high-pressure closed exhaust valve" returns to the normally open position after losing pressure;

[0080] ②. Further, when the cylinder ends the compression stroke and enters the exhaust stroke, the engine's own exhaust valve opens, and the piston moves upward to discharge the remaining gas in the cylinder into the exhaust manifold chamber;

[0081] ③. When the cylinder finishes the exhaust stroke, the exhaust valve closes, the piston moves upward to the top dead center of the intake stroke, and the intake valve opens. At this time, the control system sends a cleaning signal, and the main control solenoid valve and the liquid filling solenoid valve are opened at the same time. The incoming cleaning liquid (or dry ice) and compressed air are mixed into a two-fluid compressed gas and injected into the cylinder. The injection pipe is pressurized to overcome the pressure of the elastic body and advance into the cylinder to the first abutment surface and rotate an angle. At the same time, the two-fluid compressed air is sprayed in a fan shape to the top of the combustion chamber through the eccentric diffusion cavity of the injection pipe. After flushing the carbon deposits, it is rebounded to the cylinder wall and the bottom of the piston in the combustion chamber, flushing the cylinder wall and the top of the piston, and the pressure penetrates into the gap between the piston and the cylinder wall to clean the carbon deposits. The detergent soaks and dissolves the carbon deposits in the piston ring and the piston ring groove. The dissolved residual liquid of the deposits is pushed to the top of the cylinder and the crankcase by the piston ring when the piston moves up and down. The vortex airflow generated by the second fluid injected during the intake stroke flushes the cleaned carbon deposits through the opened intake valve of the combustion chamber into the intake manifold chamber and is collected by the vacuum cleaner. Before the piston of this cylinder moves downward to the bottom dead center, the main control solenoid valve and the liquid addition solenoid valve are closed at the same time, and the injection of the second fluid compressed air into the combustion chamber is stopped. Then, the high-pressure closed exhaust valve loses the high-pressure pressure, and the valve core is opened by the elastic body, and the combustion chamber is open to the outside. The intake valve of the combustion chamber itself is also closed, ending the intake stroke and entering the compression stroke.

[0082] ④. Further, when the cylinder enters the compression stroke, the piston moves upward, and the residual gas in the cylinder is compressed upward by the piston and discharged to the outside of the combustion chamber through the opened high-pressure closed exhaust valve;

[0083] All cylinders of the engine are cleaned in a continuous cycle following the above four processes to complete the cleaning requirements of the combustion chamber designed in this application. If a cleaning fluid with a piston ring release agent is selected, the oil burning phenomenon caused by the piston ring sticking due to carbon deposits can be completely eliminated.

[0084] When the operating time or number set by the control system is completed, the device will stop automatically. The device can also be stopped by pressing the stop button in the middle.

[0085] Jet pipe working characteristics:

[0086] When the compressed air enters the injection pipe, the injection pipe overcomes the pressure of the elastic body and pushes forward to the first abutment surface. The compressed air is ejected outward from the injection port set on the side of the injection pipe. Due to the reaction force of the eccentric injection port, the injection pipe is pushed to rotate a certain angle in the opposite direction of the cutout. At the same time, the compressed air is ejected to the top of the combustion chamber at the rear side under the force of the arc-shaped receiving surface of the injection pipe head, and reflected to the cylinder wall and the top of the piston. Under the force of the eccentric direction, the compressed air forms a vortex airflow inside the cylinder, which cleans and drives the residue to be discharged in the direction of the open intake valve or exhaust valve and is recovered by an external vacuum cleaner. In the manual operation state, the intake valve or exhaust valve is always in the open state, and the above process is repeated continuously by manual point shooting to achieve the purpose of rotating the nozzle for cleaning.

[0087] Actions in the automatic cleaning state: When the engine fuel injector is in the oil-free state, start the ignition switch; after the piston enters the reciprocating motion, the control system receives the signal that the piston has reached the top dead center and starts the cleaning process;

[0088] 1. Intake stroke: The control system receives a signal that the piston has reached the top dead center. At this time, the intake valve is open. The injection pipe injects compressed air into the combustion chamber and discharges it through the intake valve. When the piston reaches the bottom dead center, the injection stops.

[0089] 2. Compression stroke: After the intake stroke, the intake valve is closed; the piston moves upward to compress the remaining gas upward; it is discharged from the automatic exhaust valve connected to the cavity through the injection pipe cavity and the guide pipe cavity to eliminate the resistance when the piston moves upward.

[0090] 3. Power stroke: After the compression stroke, the piston is at the top dead center, and the intake and exhaust valves are closed; the control signal receives the power signal, and the injection pipe injects compressed air into the combustion chamber; the piston is pushed downward to do work, making the engine run; before the piston reaches the bottom dead center, the injection stops.

[0091] 4. Exhaust stroke: After the power stroke, the exhaust valve opens; the piston moves upward to compress the remaining gas; and it is discharged through the exhaust manifold cavity.

[0092] Specifically, a spray chamber connected to the spray port is formed in the spray pipe, and the compressed air can be ejected out of the spray port through the guide chamber and the spray chamber in turn. A receiving surface is formed in the spray chamber. The receiving surface is a closed or partially open head surface at one end of the spray port. When the compressed air enters the spray chamber, it will first contact the receiving surface. When blocked by the receiving surface, the compressed air will be ejected out of the spray port on the spray pipe. Specifically, the receiving surface is an arc-shaped end surface. Among them, the compressed air enters the spray chamber from the guide chamber along the guide direction. The receiving surface is perpendicular to the guide direction, and the force point of the compressed air when contacting the receiving surface is more concentrated, so that the flow rate of the compressed air discharged through multiple spray ports is consistent. An elastic member is arranged between the spray pipe shell and the spray pipe. A first abutment surface is formed at the end of the guide member; a second abutment surface is formed in the spray pipe shell. The elastic member is installed between the spray pipe shell and the spray pipe, and the guide member is installed on the upper part of the spray pipe shell. The first abutment surface and the second abutment surface limit the spray pipe. After the compressed air enters the guide chamber, it pushes the injection tube to move in the direction of the injection tube chamber. When the compressed air stops being ejected outward, the injection tube is returned to the first abutment surface by the return thrust of the elastic body. After the compressed air enters the injection chamber from the guide chamber, it will be blocked by the receiving surface, which will exert a force on the receiving surface to move in the direction of the flow guide, thereby causing the elastic member between the injection tube and the guide to deform, and the injection tube will move in the direction of the flow guide. When the compressed air stops being discharged, the receiving surface is not subjected to the force in the direction of the flow guide, and the elastic member returns to its initial state. Such a setting can prevent the piston from colliding with the injection tube when it moves upward.

[0093] Specifically, when the injection port is injecting and stopping injection, at least half of the injection port is arranged in the combustion chamber space, so as to discharge the residual gas during the compression stroke.

[0094] Specifically, when the injection port ejects compressed air outward, the guide slope causes the injection pipe to rotate to a preset angle. The preset angle is determined by the pressure and flow rate of the compressed air when it enters the injection chamber. The preferred preset angle is 15-30 degrees. After the injection pipe rotates to a preset angle, the fan-shaped area of ​​the compressed air ejected outward by the injection pipe intersects with the fan-shaped area of ​​the compressed air ejected outward by the injection pipe before the injection pipe rotates to a preset angle. When cleaning the inside of the cylinder, the fan-shaped area of ​​the compressed air ejected after the rotation will overlap with part of the fan-shaped area of ​​the compressed air ejected before the rotation for secondary cleaning, thereby ensuring the cleanliness after cleaning. The carbon deposits in the combustion chamber space are discharged through the intake valve with the vortex airflow, and the back of the intake valve and the intake manifold are also cleaned. When the injection port rotates to the valve position, the compressed air strongly flushes the front and back of the open valve and the intake duct chamber, and the vacuum cleaner connected to the outside of the intake duct sucks out the carbon deposits after cleaning.

[0095] The flow guide chamber is externally connected to compressed air through a high-pressure air valve, and the flow guide piece and the high-pressure air valve can be quickly disassembled and connected.

[0096] When using the manual mode of this application for cleaning, the intake valve or exhaust valve must always be in the open state, and the above process is repeated continuously by manual point-and-shooting to achieve an effect similar to automatic continuous cleaning.

[0097] The above description is only some preferred embodiments of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present application is not limited to the technical solutions formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above invention concept. For example, the above features are replaced with the technical features with similar functions applied in the embodiments of the present application to form a technical solution.

Claims

1. A pulse rotary spray assembly of a pulse rotary spray assembly of a pulse rotary cleaning device for cleaning carbon deposits in a cylinder, characterized in that: The pulse rotary cleaning assembly has one end connected to the solenoid valve seat and the other end can be directly installed on the spark plug hole and connected to the combustion chamber to form a hollow air delivery chamber, which is used to inject compressed air into the cylinder when the piston is at the top dead center of the intake stroke, pushing the piston to do work, thereby allowing the engine to work continuously.

2. The pulse rotary spray assembly of the pulse rotary spray assembly of the pulse rotary cleaning device for cleaning carbon deposits in a cylinder according to claim 1, characterized in that: The exhaust valve is set at any position in the pulse rotary cleaning component chamber. When the cylinder is in the compression stroke, it automatically releases pressure to reduce the resistance of the piston when it moves upward. When the cylinder is in the power stroke, it automatically closes to prevent high-pressure air leakage. The present invention does not require the assistance of external electronic or mechanical devices, and automatically closes and opens according to the pressure. The high-pressure closed exhaust valve can also be used in other scenarios with similar needs.

3. The pulse rotary spray assembly of the pulse rotary spray assembly of the pulse rotary cleaning device for cleaning carbon deposits in a cylinder according to claim 1, characterized in that: The pulse rotary jet assembly is installed in the spark plug hole. The jet nozzle in the pulse rotary jet assembly has a different installation size of the spark plug hole, so the jet tube housing and the jet tube are replaced. Therefore, the guide piece is connected to the water nozzle housing with a thread. Furthermore, the thread is in the spark plug installation cavity. When the cleaning work is completed and the connected thread is easy to fall off when it is removed, the guide tube housing cannot be taken out. Therefore, the upper end of the guide piece thread is designed as a two-way thread, and the lower end is designed as the same thread as the spark plug hole. Specific usage method: First, screw the two-way thread nut right-handed into the inner side of the two-way thread of the guide piece, and then screw it right-handed into the two-way thread of the guide piece. After the water nozzle housing is connected to the guide piece, the two-way thread nut is right-handed to compress the water nozzle housing. After that, when the pulse rotary cleaning assembly is removed from the spark plug hole by left-hand rotation, the guide piece and the jet nozzle housing will be tightened by the reaction force of the two-way thread nut to prevent the guide piece from being separated from the jet nozzle housing.

4. The pulse rotary spray assembly of the pulse rotary spray assembly of the pulse rotary cleaning device for cleaning carbon deposits in a cylinder according to claim 1, characterized in that: The injection pipe installed on the injection nozzle housing is provided with one or more eccentric guide ports on the top side, and the top of the injection pipe is provided with a closed or semi-closed structure to form a receiving surface. When the compressed air enters the injection nozzle and encounters the receiving surface, the compressed air is ejected eccentrically to the side and rear by the rebound force and the guide port, and rotates a certain angle along the axis. When the pulse rotary cleaning assembly is installed on the cylinder for use, a combustion chamber space, an intake manifold chamber, and an exhaust chamber are formed in the cylinder; a valve located in the combustion chamber space for controlling the opening and closing of the intake cavity and the exhaust cavity, as well as a piston and a piston ring are provided in the cylinder; the injection direction intersects with the top of the combustion chamber space. When the pulse optional cleaning device is used to automatically and continuously clean the cylinder, the compressed air is injected at the top of the combustion chamber space. Each time the injection is performed, the injection port rotates once, and the previous injection position partially overlaps with the next injection position. The valve is on the same parallel plane as the valve seat at the top of the combustion chamber. When the injection port rotates to the valve position, the valve is open at this time, and the compressed air flushes the back of the intake valve and the intake duct chamber; further, the top of the injection pipe is a closed or semi-closed structure, and an elastomer is installed between the injection nozzle and the water nozzle housing, forming a first abutment surface and a second abutment surface on the guide member injector housing to prevent the injection pipe from colliding with the top of the piston.

5. The pulse rotary spray assembly of the pulse rotary spray assembly of the pulse rotary cleaning device for cleaning carbon deposits in a cylinder according to claim 1, characterized in that PLC uses the engine's four-stroke working signal to open the solenoid valve at different cylinder strokes to promote the engine to run continuously and automatically, and adds cleaning agent to the compressed air in a timely manner to clean the combustion chamber space and related parts. Working conditions at different cylinder working strokes: ① During the intake stroke, the control system receives a signal that the piston has reached the top dead center. At this time, the intake valve is open. The injection pipe injects compressed air into the combustion chamber and discharges it through the intake valve. When the piston reaches the bottom dead center, the injection stops. ② During the compression stroke, the intake valve is closed; As the piston moves upward, the gas in the combustion chamber is compressed upward; The gas is discharged from the automatic exhaust valve installed on the cavity formed by the valve seat of the main control solenoid valve and the guide piece to eliminate the resistance when the piston moves upward. ③ When in the power stroke; after the compression stroke, the piston is at the top dead center, and the intake and exhaust valves are both in the closed state; the control signal receives the power signal, and the injection pipe injects compressed air into the combustion chamber; Push the piston downward to do work and make the engine run; stop spraying before the piston reaches the bottom dead center. ④ During the exhaust stroke, the exhaust valve opens; The upward movement of the piston compresses the remaining gas upward and discharges it through the exhaust manifold cavity. The compressed gas pushes the pistons to work in turn during the power strokes of the engine's many cylinders, and is ejected during the intake stroke, allowing each cylinder to circulate continuously for cleaning work.

6. The pulse rotary spray assembly of the pulse rotary spray assembly of the pulse rotary cleaning device for cleaning carbon deposits in a cylinder according to claim 1, characterized in that: An injection pipe is arranged in the injection pipe housing, and one or more elongated openings or circular holes at about 35 degrees from the center of the injection pipe are arranged on the side of the injection pipe head for injecting compressed air into the combustion chamber.

7. The pulse rotary spray assembly of the pulse rotary spray assembly of the pulse rotary cleaning device for cleaning carbon deposits in a cylinder according to claim 1, characterized in that: The pulse rotary cleaning device includes: a flow guide, a double-threaded locking nut, a cleaning nozzle housing, an elastomer, and a spray pipe; an elastomer is arranged between the spray pipe and the spray pipe housing, a second abutment surface is formed at the top of the flow guide, and an abutment surface is formed inside the spray pipe housing. When compressed air enters the chamber through the flow guide, the spray pipe overcomes the spring pressure and is pushed toward the combustion chamber to the second abutment surface. When the compressed air stops spraying, the spray pipe rebounds to the second abutment surface due to the pressure of the elastic body.

8. The pulse rotary spray assembly of the pulse rotary spray assembly of the pulse rotary cleaning device for cleaning carbon deposits in a cylinder according to claim 1, characterized in that: The two ends of the injection nozzle opening form a trumpet mouth that spreads outward at 90 degrees, so that the ejected compressed air can rotate in a fan-shaped area for cleaning, thereby completing the cleaning of the top of the combustion chamber.

9. The pulse rotary spray assembly of the pulse rotary spray assembly of the pulse rotary cleaning device for cleaning carbon deposits in a cylinder according to claim 1, characterized in that: When using the pulse rotary cleaning device for cleaning in manual mode, the intake valve or exhaust valve must be kept in an open state, and the above process is repeated continuously by manual point-and-shooting to achieve an effect similar to automatic continuous cleaning.

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