A piston ring, a method for generating piston ring structural parameters and a related device

Abstract

This application discloses a piston ring, a method for generating piston ring structural parameters, and related devices, relating to the field of piston rings. The piston ring comprises: a ring body and an elastic component. The elastic component is fixedly mounted on the inner side of the ring body, with a portion of the elastic component located inside the ring body and another portion located outside the ring body. When the ring body operates in a cylinder liner, if the pressure on the first piston ring land exceeds a pressure threshold and the minimum clearance between the ring body and the upper end face of the piston ring groove is zero, the other portion of the elastic component contacts the side of the piston ring groove and generates an elastic force, causing the outer side of the ring body to mate with the inner wall of the cylinder liner to form a sealing surface. This application can prevent radial collapse of the piston ring and ensure the sealing effect of the piston ring.

Description

Technical Field

[0001] The present application relates to the technical field of piston rings, and in particular to a piston ring, a method for generating piston ring structural parameters, and related devices. Background Art

[0002] When the gas pressure in the engine cylinder is high, the gas pressure on each piston ring edge will increase. The larger ring edge pressure will cause the piston ring to shrink in the radial direction, resulting in radial collapse, causing the piston ring to separate from the cylinder liner and lose the sealing effect. The gas and oil flow in the gap between the front end of the piston ring and the cylinder liner, causing high gas leakage, high oil consumption and other problems. Summary of the Invention

[0003] In view of the above problems, this application provides a piston ring, a method for generating piston ring structural parameters, and related devices to prevent radial collapse of the piston ring and ensure the sealing effect of the piston ring. The specific solution is as follows:

[0004] A first aspect of the present application provides a piston ring, comprising:

[0005] Gas ring body and elastic component;

[0006] The elastic component is fixedly arranged on the inner side of the air ring body, and a part of the elastic component is located inside the air ring body, and another part of the elastic component is located outside the air ring body;

[0007] When the gas ring body is running in the cylinder liner, if the pressure of the first piston ring bank is greater than the pressure threshold, and the minimum gap between the gas ring body and the upper end face of the piston ring groove is 0, the other part of the elastic component contacts the side face of the piston ring groove and generates elastic force, so that the outer side of the gas ring body fits with the inner wall of the cylinder liner to form a sealing surface; wherein, the pressure threshold is the sum of the pressure of the piston ring groove, the pressure of the second piston ring bank and the pressure formed by the elastic force of the gas ring body itself; the lower end face of the first piston ring bank is the upper end face of the piston ring groove; the upper end face of the second piston ring bank is the lower end face of the piston ring groove.

[0008] In a possible implementation, the distance between the center position of the elastic component and the tail end of the piston ring is not less than half the width of the elastic component; wherein the tail end of the piston ring is the end of the piston ring close to the side of the piston ring groove.

[0009] In a possible implementation, the number of the elastic components is one or more; wherein, if the number of the elastic components is multiple, each elastic component is arranged along the axial direction, and the sum of the heights of all the elastic components is less than the height of the air ring body.

[0010] In a possible implementation, the cross-sectional shape of the elastic component is elliptical or circular; and the elastic component is a rubber component.

[0011] A second aspect of the present application provides a method for generating structural parameters of a piston ring, which is applied to the piston ring of any implementation of the first aspect;

[0012] The method comprises:

[0013] Obtaining piston structural parameters, cylinder liner structural parameters and combustion gas pressure in the engine cylinder;

[0014] Obtaining the structural parameters of the gas ring body according to the piston structural parameters, the cylinder liner structural parameters and the combustion gas pressure in the engine cylinder;

[0015] Determining the center position of the elastic component according to the structural parameters of the gas ring body;

[0016] determining the size of the elastic component according to the center position of the elastic component;

[0017] Determine whether the piston ring obtained according to the piston ring structural parameters meets the ring operation requirements. If it meets the ring operation requirements, obtain the piston ring structural parameters; wherein, the piston ring structural parameters include the ring body structural parameters, the elastic component center position and the elastic component size.

[0018] In a possible implementation, determining the center position of the elastic component according to the structural parameters of the air ring body includes:

[0019] Calculate the ring body width based on the ring body diameter, piston ring groove diameter, and back clearance; wherein the back clearance is the gap between the piston ring tail end and the side of the piston ring groove, and the piston ring tail end is the end of the piston ring closest to the side of the piston ring groove;

[0020] Calculate the ring body height based on the piston ring groove height and side clearance; wherein the side clearance is the gap between the upper end surface of the piston ring and the upper end surface of the piston ring groove, and the upper end surface of the piston ring is the surface of the piston ring close to the upper end surface of the piston ring groove;

[0021] Calculating the distance between the center position of the elastic component and the tail end of the piston gas ring according to the gas ring body width, the gas ring body height, and the gas ring body diameter;

[0022] The distance between the center position of the elastic component and the upper end surface of the piston gas ring is calculated according to the height of the gas ring body.

[0023] In a possible implementation, determining the size of the elastic component according to the center position of the elastic component includes:

[0024] The width of the elastic component is determined according to the distance between the center position of the elastic component and the tail end of the piston ring; wherein half of the width of the elastic component is not greater than the distance between the center position of the elastic component and the tail end of the piston ring;

[0025] The height of the elastic component is calculated according to the width of the elastic component, the diameter of the air ring body and the number of elastic components.

[0026] A third aspect of the present application provides a computer program product comprising computer-readable instructions. When the computer-readable instructions are executed on an electronic device, the electronic device implements the method for generating piston ring structural parameters according to the second aspect or any implementation of the second aspect.

[0027] A fourth aspect of the present application provides an electronic device, comprising at least one processor and a memory connected to the processor, wherein:

[0028] The memory is used to store computer programs;

[0029] The processor is used to execute the computer program so that the electronic device can implement the piston ring structural parameter generation method of the above-mentioned second aspect or any implementation of the second aspect.

[0030] In a fifth aspect, the present application provides a computer storage medium, which carries one or more computer programs. When the one or more computer programs are executed by an electronic device, the electronic device can use the method for generating piston ring structural parameters according to the second aspect or any implementation of the second aspect.

[0031] By means of the above technical solution, the piston gas ring, piston gas ring structural parameter generation method and related devices provided by the present application, by arranging an elastic component on the gas ring body, can generate elastic force by contacting the side of the piston ring groove when the pressure of the first piston ring bank is too large and there is a possibility of radial collapse of the piston gas ring. This elastic force can make the piston gas ring fit with the cylinder liner to form a sealing surface, thereby preventing the piston gas ring from separating from the cylinder liner. In addition, the elastic force increases with the increase of the pressure of the first piston ring bank, thereby realizing the change of the elastic force of the piston gas ring during operation, reducing the risk of radial collapse of the piston gas ring, ensuring the sealing effect of the piston gas ring, and reducing the leakage and oil consumption. At the same time, since the elastic component and the piston ring groove are in elastic contact, wear between the ring and the ring groove can be effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and other features, advantages, and aspects of the various embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. 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 originals and elements are not necessarily drawn to scale.

[0033] Figure 1 A top view of a piston gas ring structure provided in this application;

[0034] FIG2( a ) is a cross-sectional view of a piston gas ring structure in which the cross-sectional shape of an elastic component provided by the present application is elliptical;

[0035] Figure 2 (b) is a cross-sectional view of the piston ring structure of an elastic component having a rectangular cross-sectional shape provided by the present application;

[0036] Figure 2 (c) is a cross-sectional view of a piston gas ring structure having two elastic components provided in the present application;

[0037] FIG3 (a) is a schematic diagram of a piston ring in a positive twist state provided by the present application;

[0038] Figure 3 (b) is a schematic diagram of a piston gas ring negative torque state provided by the present application;

[0039] Figure 4 A flow chart of a method for generating piston ring structural parameters provided in this application;

[0040] FIG5 (a) is a schematic diagram of side clearance and back clearance provided by the present application;

[0041] Figure 5 (b) is a schematic diagram of the size of a piston ring provided in this application;

[0042] FIG5 (c) is a schematic diagram of the dimensions of an elastic component provided in this application;

[0043] Figure 6 This is a schematic diagram of the structure of an electronic device provided in this application. DETAILED DESCRIPTION

[0044] The following describes the embodiments of the present application in conjunction with the accompanying drawings. The terms used in the implementation methods of the present application are only used to explain the specific embodiments of the present application and are not intended to limit the present application.

[0045] The embodiments of the present application are described below in conjunction with the accompanying drawings. Those skilled in the art will appreciate that, with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0046] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, and this is merely a way of distinguishing the objects of the same attributes when describing them in the embodiments of the present application. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, so that the process, method, system, product or equipment comprising a series of units need not be limited to those units, but may include other units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0047] Reference Figure 1 , Figure 1 A top view of a piston gas ring structure provided in an embodiment of the present application is shown as follows: Figure 1 As shown, an embodiment of the present application provides a piston ring, comprising:

[0048] Gas ring body 1 and elastic component 2.

[0049] The elastic component 2 is fixedly arranged on the inner side of the air ring body 1 , with a portion of the elastic component 2 located inside the air ring body 1 and another portion of the elastic component 2 located outside the air ring body 1 .

[0050] Optionally, the elastic component can be secured to the gas ring body by cast-in or mortise and tenon joints with adhesive bonding. A portion of the elastic component is embedded within the gas ring body, while a portion protrudes from the gas ring body, positioned externally to facilitate elastic contact with the piston. The elastic component can be a high-temperature resistant elastic component. The elastic component can be a rubber component, specifically a high-temperature resistant rubber component. The contact between the piston gas ring and the ring groove in this application is elastic contact between rubber and metal, effectively preventing wear between the ring and the ring groove.

[0051] The piston ring described in this application can be either the first or second ring. As the pressure on each ring decreases, the second ring is more susceptible to radial piston collapse than the first ring. The piston ring can seal air, oil, and conduct heat.

[0052] Optionally, the air ring body can be a conical ring, a nose ring, a barrel-shaped ring, a trapezoidal ring, or a twisted ring, and this application does not impose any specific restrictions on this. The cross-sectional shape of the elastic component is elliptical or circular. The cross-sectional shape of the elastic component is elliptical or circular. After the impact of the oil-gas mixed air flow, a tumble flow will be formed due to the existence of the arc, causing the oil-gas mixed air flow to reflux, which can enhance the air and oil sealing effect. Of course, the cross-sectional shape of the elastic component can also be rectangular. Figure 2 (a) is a cross-sectional view of the piston air ring structure with an elliptical cross-sectional shape of the elastic component provided in an embodiment of the present application, and Figure 2 (b) is a cross-sectional view of the piston air ring structure with a rectangular cross-sectional shape of the elastic component provided in an embodiment of the present application.

[0053] Optionally, there are one or more elastic components. If there are multiple elastic components, the components are arranged axially, and the sum of the heights of all the elastic components is less than the height of the gas ring body. Figure 2(c) shows a cross-sectional view of a piston gas ring structure with two elastic components.

[0054] When the gas ring body operates in the cylinder liner, if the pressure on the first piston ring land exceeds the pressure threshold and the minimum clearance between the gas ring body and the upper end surface of the piston ring groove is zero, the other part of the elastic component contacts the side surface of the piston ring groove and generates elastic force, causing the outer side of the gas ring body to fit against the inner wall of the cylinder liner to form a sealing surface. The pressure threshold is the sum of the pressure in the piston ring groove, the pressure on the second piston ring land, and the pressure generated by the gas ring body's own elastic force. The lower end surface of the first piston ring land is the upper end surface of the piston ring groove, and the upper end surface of the second piston ring land is the lower end surface of the piston ring groove.

[0055] Optionally, to ensure the adhesion between the elastic component and the air ring body, the distance between the center position of the elastic component and the tail end of the piston air ring is not less than half the width of the elastic component; wherein the tail end of the piston air ring is the end of the piston air ring close to the side of the piston ring groove.

[0056] Figure 3(a) is a schematic diagram of a piston ring in a positive torque state, provided in an embodiment of the present application, and Figure 3(b) is a schematic diagram of a piston ring in a negative torque state, provided in an embodiment of the present application. A piston ring groove is provided on the piston 3. During operation in the cylinder liner 4, the piston ring undergoes twisting and up-and-down motion due to its own twisting and inertial forces. This results in a minimum clearance between the piston ring and the upper end surface of the piston ring groove of zero, trapping the airflow. When the airflow is trapped, if the pressure P1 of the first piston ring land is high, such that pressure P1 exceeds the sum of the groove pressure P2, the second piston ring land pressure P3, and the surface pressure generated by the elastic force of the ring body itself, a piston ring without an elastic component will contract radially, resulting in increased air leakage. However, in the piston ring provided in the present application, the elastic force generated by the elastic component contacting the side of the piston ring groove increases with the pressure P1 of the first piston ring land, achieving radial force equilibrium. This allows the outer side of the ring body to form a sealing surface with the inner wall of the cylinder liner 4, preventing radial collapse. In Figure 3 (a) and Figure 3 (b), t1 is the vertical distance between the contact point between the gas ring body and the upper end surface of the piston ring groove and the contact point between the gas ring body and the cylinder liner, t2 is the vertical distance between the contact point between the elastic component and the side surface of the piston ring groove and the contact point between the gas ring body and the upper end surface of the piston ring groove, and t3 is the vertical distance between the contact point between the elastic component and the side surface of the piston ring groove and the contact point between the gas ring body and the cylinder liner, t1=t2+t3.

[0057] The piston air ring provided by the present application, by arranging an elastic component on the air ring body, can generate elastic force by contacting the side of the piston ring groove when the pressure of the first piston ring bank is too high and there is a possibility of radial collapse of the piston air ring. This elastic force can make the piston air ring fit with the cylinder liner to form a sealing surface, thereby preventing the piston air ring from separating from the cylinder liner. In addition, the elastic force increases with the increase of the pressure of the first piston ring bank, thereby realizing the change of the elastic force of the piston air ring during operation, reducing the risk of radial collapse of the piston air ring, ensuring the sealing effect of the piston air ring, and reducing the amount of leakage and engine oil consumption. At the same time, since the elastic component and the piston ring groove are in elastic contact, wear between the ring and the ring groove can be effectively avoided.

[0058] Reference Figure 4 , Figure 4 The process diagram of the method for generating piston ring structural parameters provided in the embodiment of the present application is as follows: Figure 4 As shown, a method for generating piston ring structural parameters provided by an embodiment of the present application may include steps 401 to 405, and these steps are described in detail below.

[0059] The present application provides a method for generating structural parameters of a piston ring, which is applied to the above-mentioned piston ring. The structure of the piston ring can refer to the following: Figure 1 To Figure 3. The piston ring structural parameter generation method includes:

[0060] Step 401: Obtain piston structural parameters, cylinder liner structural parameters, and combustion gas pressure in the engine cylinder.

[0061] The piston structural parameters may include the diameter of the first piston land D1, the diameter of the second piston land D2, the diameter of the piston ring groove D3, and the piston ring groove height h0. The lower end surface of the first piston land serves as the upper end surface of the piston ring groove, and the upper end surface of the second piston land serves as the lower end surface of the piston ring groove. The cylinder liner structural parameters may include the cylinder diameter D0. Furthermore, the combustion gas pressure P within the engine cylinder must be obtained.

[0062] Step 402: Obtain the gas ring body structural parameters according to the piston structural parameters, the cylinder liner structural parameters and the combustion gas pressure in the engine cylinder.

[0063] The air ring body structural parameters may include the air ring body diameter D, the air ring body structure type, the air ring initial target elastic force F aim The diameter of the gas ring body can be obtained according to the piston structure parameters and the cylinder liner structure parameters. The gas ring body structure type can be obtained according to the piston structure type. The initial target elastic force F of the gas ring can be obtained according to the piston structure parameters and the combustion gas pressure in the engine cylinder. aim .

[0064] In addition, the side clearance eh and back clearance el must be obtained. Figure 5(a) is a schematic diagram of the side clearance and back clearance. As shown in Figure 5(a), the back clearance el is the gap between the rear end of the piston ring and the side of the piston ring groove. The rear end of the piston ring is the end of the piston ring close to the side of the piston ring groove. The side clearance eh is the gap between the upper end face of the piston ring and the upper end face of the piston ring groove. The upper end face of the piston ring is the side of the piston ring close to the upper end face of the piston ring groove. Among them, the side clearance needs to ensure that the ring can slide without restriction under high temperature and high pressure. The side clearance can be 0.04mm-0.5mm. The back clearance needs to ensure that the ring still retains a certain gap with the ring groove at most times. At the same time, when the ring undergoes significant bending and deformation, it can contact the ring groove to provide elastic force. The back clearance can be 0.03mm-0.25mm.

[0065] Step 403: Determine the center position of the elastic component according to the structural parameters of the gas ring body.

[0066] In an optional embodiment, determining the center position of the elastic component according to the structural parameters of the gas ring body includes:

[0067] Calculate the ring body width based on the ring body diameter, piston ring groove diameter, and back clearance. Back clearance is the gap between the piston ring tail end and the side of the piston ring groove. The piston ring tail end is the end of the piston ring closest to the side of the piston ring groove.

[0068] Calculate the ring body height based on the piston ring groove height and side clearance; the side clearance is the gap between the upper end surface of the piston ring and the upper end surface of the piston ring groove, and the upper end surface of the piston ring is the side of the piston ring close to the upper end surface of the piston ring groove;

[0069] Calculate the distance between the center of the elastic component and the tail end of the piston ring based on the ring body width, ring body height, and ring body diameter;

[0070] According to the height of the gas ring body, the distance between the center position of the elastic component and the upper end surface of the piston gas ring is calculated.

[0071] Figure 5(b) shows the dimensions of a piston ring. As shown in Figure 5(b), the ring body width is l, the ring body height is h, the distance between the center of the elastic component and the tail end of the piston ring is l1, and the distance between the center of the elastic component and the upper end face of the piston ring is h1.

[0072] When calculating the width of the gas ring body based on the gas ring body diameter, piston ring groove diameter and back clearance, the formula that can be used is l= (D-D3-2×el) / 2.

[0073] When calculating the height of the gas ring body based on the piston ring groove height and side clearance, the formula that can be used is h=h0-eh.

[0074] When calculating the distance between the center of the elastic component and the tail end of the piston ring based on the ring body width, ring body height, and ring body diameter, the formula that can be used is:

[0075]

[0076] Where, E1 is the elastic modulus of the gas ring body, which can be determined by the material; S0 is the free open gap of the gas ring body, which can be 2.5l-3.9l; S is the closed gap of the gas ring body, which can be 0.03S0-0.06S0; ɛ is the section coefficient of the gas ring, which can be determined according to the cross-sectional shape; F R is the elastic force of the gas ring body, F R = α×F aim , α can be 0.95-1.

[0077] Step 404: Determine the size of the elastic component according to the center position of the elastic component.

[0078] In an optional embodiment, determining the size of the elastic component according to the center position of the elastic component includes:

[0079] The width of the elastic component is determined according to the distance between the center of the elastic component and the rear end of the piston ring; wherein half of the width of the elastic component is not greater than the distance between the center of the elastic component and the rear end of the piston ring;

[0080] Calculate the height of the elastic component based on the width of the elastic component, the diameter of the gas ring body, and the number of elastic components.

[0081] Figure 5(c) shows the dimensions of the elastic component. As shown in Figure 5(c), a represents the width of the elastic component, and b represents its height. To ensure proper adhesion between the elastic component and the piston ring body, the distance between the center of the elastic component and the rear end of the piston ring should be no less than half the elastic component's width. Half the width a of the elastic component can be between 0.4l1 and 0.5l1.

[0082] According to the width of the elastic component, the diameter of the gas ring body and the number of elastic components, the height b of the elastic component can be calculated using the formula:

[0083]

[0084] Where κ is the elastic coefficient, which is related to the contact mode between the elastic component and the ring groove and the cross-sectional shape; n is the number of elastic components, E2 is the elastic modulus of the elastic component, and F b is the elastic force of the elastic component, F b Can be 0.05F R -0.6F R .

[0085] Step 405: Determine whether the piston ring obtained according to the piston ring structural parameters meets the ring operation requirements. If it meets the ring operation requirements, obtain the piston ring structural parameters; wherein the piston ring structural parameters include the ring body structural parameters, the elastic component center position and the elastic component size.

[0086] The piston rings obtained based on their structural parameters can be simulated and tested to determine whether they meet operating requirements. For example, they can determine whether they have a retaining ring, whether they collapse under normal conditions, whether there is a risk of cylinder scuffing, and whether their lifespan is reduced or whether they increase air leakage and oil consumption. Cylinder scuffing refers to abnormal wear between the piston ring and the cylinder liner.

[0087] If simulation and experimental operations reveal that the requirements are not met, it is necessary to adjust the gas ring body structural parameters, and then recalculate the center position and dimensions of the elastic component until the piston gas ring obtained according to the piston gas ring structural parameters meets the requirements.

[0088] A method for generating piston ring structural parameters provided by an embodiment of the present application has been introduced above. A system for executing the above-mentioned method for generating piston ring structural parameters will be introduced below.

[0089] The piston ring structural parameter generation system includes:

[0090] A parameter acquisition module is used to obtain piston structural parameters, cylinder liner structural parameters and combustion gas pressure in the engine cylinder;

[0091] The gas ring body structural parameter acquisition module is used to obtain the gas ring body structural parameters according to the piston structural parameters, the cylinder liner structural parameters and the combustion gas pressure in the engine cylinder;

[0092] An elastic component center position determination module is used to determine the elastic component center position according to the structural parameters of the gas ring body;

[0093] An elastic component size determination module, used to determine the size of the elastic component according to the center position of the elastic component;

[0094] The piston ring structure generation module is used to determine whether the piston ring obtained according to the piston ring structure parameters meets the ring operation requirements. If it meets the ring operation requirements, the piston ring structure parameters are obtained; among them, the piston ring structure parameters include the ring body structure parameters, the elastic component center position and the elastic component size.

[0095] In a possible implementation, the elastic component center position determination module is specifically configured to:

[0096] Calculate the ring body width based on the ring body diameter, piston ring groove diameter, and back clearance. Back clearance is the gap between the piston ring tail end and the side of the piston ring groove. The piston ring tail end is the end of the piston ring closest to the side of the piston ring groove.

[0097] Calculate the ring body height based on the piston ring groove height and side clearance; the side clearance is the gap between the upper end surface of the piston ring and the upper end surface of the piston ring groove, and the upper end surface of the piston ring is the side of the piston ring close to the upper end surface of the piston ring groove;

[0098] Calculate the distance between the center of the elastic component and the tail end of the piston ring based on the ring body width, ring body height, and ring body diameter;

[0099] According to the height of the gas ring body, the distance between the center position of the elastic component and the upper end surface of the piston gas ring is calculated.

[0100] In another possible implementation, the elastic component size determination module is specifically configured to:

[0101] The width of the elastic component is determined according to the distance between the center of the elastic component and the rear end of the piston ring; wherein half of the width of the elastic component is not greater than the distance between the center of the elastic component and the rear end of the piston ring;

[0102] Calculate the height of the elastic component based on the width of the elastic component, the diameter of the gas ring body, and the number of elastic components.

[0103] An electronic device is also provided in an embodiment of the present application. Figure 6 , which shows a schematic diagram of the structure of an electronic device suitable for implementing the embodiments of the present application. The electronic device in the embodiments of the present application may include, but is not limited to, fixed terminals such as mobile phones, laptops, PDAs (personal digital assistants), PADs (tablet computers), desktop computers, etc. Figure 6 The electronic device shown is merely an example and should not limit the functions and scope of use of the embodiments of the present application.

[0104] like Figure 6 As shown, the electronic device may include a processing device (e.g., a central processing unit, a graphics processing unit, etc.) 601, which can perform various appropriate actions and processes based on programs stored in a read-only memory (ROM) 602 or programs loaded from a storage device 608 into a random access memory (RAM) 603. When the electronic device is powered on, the RAM 603 also stores various programs and data required for the operation of the electronic device. The processing device 601, ROM 602, and RAM 603 are interconnected via a bus 604. An input / output (I / O) interface 605 is also connected to the bus 604.

[0105] Typically, the following devices may be connected to the I / O interface 605: an input device 606 including, for example, a touch screen, a touchpad, a keyboard, a mouse, a camera, a microphone, an accelerometer, a gyroscope, etc.; an output device 607 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; a storage device 608 including, for example, a memory card, a hard disk, etc.; and a communication device 609. The communication device 609 may allow the electronic device to communicate with other devices wirelessly or by wire to exchange data. Figure 6 The electronic device is shown with various devices, but it should be understood that it is not required to implement or possess all of the devices shown. More or fewer devices may be implemented or possessed instead.

[0106] An embodiment of the present application also provides a computer program product including computer-readable instructions. When the computer-readable instructions are executed on an electronic device, the electronic device implements any one of the piston ring structure parameter generation methods provided in the embodiment of the present application.

[0107] A computer-readable storage medium is also provided in an embodiment of the present application. The storage medium carries one or more computer programs. When the one or more computer programs are executed by an electronic device, the electronic device can implement any one of the piston ring structure parameter generation methods provided in the embodiment of the present application.

[0108] It should also be noted that the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed across multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the present embodiment. In addition, in the drawings of the device embodiments provided in this application, the connection relationship between the modules indicates that there is a communication connection between them, which can be specifically implemented as one or more communication buses or signal lines.

[0109] Through the description of the above embodiments, those skilled in the art can clearly understand that the present application can be implemented by means of software plus necessary general hardware, and of course can also be implemented by special hardware including application-specific integrated circuits, special CPUs, special memories, special components, etc. In general, all functions performed by computer programs can be easily implemented with corresponding hardware, and the specific hardware structures used to implement the same function can also be diverse, such as analog circuits, digital circuits or special circuits, etc. However, for the present application, software program implementation is a better implementation method in most cases. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a readable storage medium, such as a computer's floppy disk, USB flash drive, mobile hard disk, ROM, RAM, magnetic disk or optical disk, etc., and includes a number of instructions to enable a computer device (which can be a personal computer, training equipment, or network equipment, etc.) to execute the methods described in each embodiment of the present application.

[0110] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware, or any combination thereof. When implemented by software, all or part of the embodiments may be implemented in the form of a computer program product.

[0111] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website, a computer, a training device or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website, a computer, a training device or a data center. The computer-readable storage medium can be any available medium that a computer can store or a data storage device such as a training device, a data center, etc. that includes one or more available media integrations. The available medium can be a magnetic medium, (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state drive (SSD)).

Claims

1. A piston ring, characterized in that: include: Gas ring body and elastic component; The elastic component is fixedly arranged on the inner side of the air ring body, and a part of the elastic component is located inside the air ring body, and another part of the elastic component is located outside the air ring body; When the gas ring body is running in the cylinder liner, if the pressure of the first piston ring bank is greater than the pressure threshold, and the minimum gap between the gas ring body and the upper end face of the piston ring groove is 0, the other part of the elastic component contacts the side face of the piston ring groove and generates elastic force, so that the outer side of the gas ring body fits with the inner wall of the cylinder liner to form a sealing surface; wherein, the pressure threshold is the sum of the pressure of the piston ring groove, the pressure of the second piston ring bank and the pressure formed by the elastic force of the gas ring body itself; the lower end face of the first piston ring bank is the upper end face of the piston ring groove; the upper end face of the second piston ring bank is the lower end face of the piston ring groove.

2. The piston ring according to claim 1, characterized in that: The distance between the center position of the elastic component and the tail end of the piston ring is not less than half the width of the elastic component; wherein, the tail end of the piston ring is the end of the piston ring close to the side of the piston ring groove.

3. The piston ring according to claim 1, characterized in that: The number of the elastic components is one or more; wherein, if the number of the elastic components is multiple, each elastic component is arranged along the axial direction, and the sum of the heights of all the elastic components is less than the height of the air ring body.

4. The piston ring according to any one of claims 1 to 3, characterized in that: The cross-sectional shape of the elastic component is elliptical or circular; the elastic component is a rubber component.

5. A method for generating piston ring structural parameters, characterized in that: Applicable to the piston ring according to any one of claims 1 to 4; The method comprises: Obtaining piston structural parameters, cylinder liner structural parameters and combustion gas pressure in the engine cylinder; Obtaining the structural parameters of the gas ring body according to the piston structural parameters, the cylinder liner structural parameters and the combustion gas pressure in the engine cylinder; Determining the center position of the elastic component according to the structural parameters of the gas ring body; determining the size of the elastic component according to the center position of the elastic component; Determine whether the piston ring obtained according to the piston ring structural parameters meets the ring operation requirements. If it meets the ring operation requirements, obtain the piston ring structural parameters; wherein, the piston ring structural parameters include the ring body structural parameters, the elastic component center position and the elastic component size.

6. The method for generating piston ring structural parameters according to claim 5, characterized in that: Determining the center position of the elastic component according to the structural parameters of the gas ring body includes: Calculate the ring body width based on the ring body diameter, piston ring groove diameter, and back clearance; wherein the back clearance is the gap between the piston ring tail end and the side of the piston ring groove, and the piston ring tail end is the end of the piston ring closest to the side of the piston ring groove; Calculate the ring body height based on the piston ring groove height and side clearance; wherein the side clearance is the gap between the upper end surface of the piston ring and the upper end surface of the piston ring groove, and the upper end surface of the piston ring is the surface of the piston ring close to the upper end surface of the piston ring groove; Calculating the distance between the center position of the elastic component and the tail end of the piston gas ring according to the gas ring body width, the gas ring body height, and the gas ring body diameter; The distance between the center position of the elastic component and the upper end surface of the piston gas ring is calculated according to the height of the gas ring body.

7. The method for generating piston ring structural parameters according to claim 6, characterized in that: Determining the size of the elastic component according to the center position of the elastic component includes: The width of the elastic component is determined according to the distance between the center position of the elastic component and the tail end of the piston ring; wherein half of the width of the elastic component is not greater than the distance between the center position of the elastic component and the tail end of the piston ring; The height of the elastic component is calculated according to the width of the elastic component, the diameter of the air ring body and the number of elastic components.

8. A computer program product, characterized in that The method comprises computer-readable instructions, which, when executed on an electronic device, enable the electronic device to implement the method for generating piston ring structural parameters as claimed in any one of claims 5 to 7.

9. An electronic device, characterized in that: comprising at least one processor and a memory connected to the processor, wherein: The memory is used to store computer programs; The processor is used to execute the computer program so that the electronic device can implement the method for generating piston ring structural parameters as described in any one of claims 5 to 7.

10. A computer storage medium, characterized in that The storage medium carries one or more computer programs, and when the one or more computer programs are executed by an electronic device, the electronic device can implement the piston ring structural parameter generation method as described in any one of claims 5 to 7.

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