Cylinder sleeve supporting structure
By increasing the support shoulder height and reducing the cooling water channel cross-section, combined with the guide plate to form a spiral vortex, the problems of cylinder liner vibration and heat dissipation efficiency in the wet cylinder block are solved, and the stability of the cylinder liner and the heat dissipation effect are improved.
Patent Information
- Application Number
- CN202422939930.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-11-29
AI Technical Summary
In a wet cylinder block, the cooling water channel occupies the space outside the cylinder liner, resulting in a reduction in the contact area between the support shoulder and the cylinder liner, increased vibration of the cylinder liner, and an increase in the coolant flow rate, affecting the heat dissipation effect.
By increasing the height of the support shoulder and reducing the cross-sectional size of the cooling water channel, and setting a guide plate in the cooling water channel to form a spiral vortex, cavitation collapse is prevented, the vibration of the cylinder liner is reduced and the heat dissipation efficiency is improved.
It effectively reduces the vibration of the cylinder liner, increases the flow rate of the coolant and the ability to remove heat, prevents the occurrence of cavitation, and maintains a good heat dissipation effect.
Smart Images
Figure CN223317932U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of engine cooling, and in particular to a cylinder liner support structure. Background Art
[0002] In a wet cylinder block, cooling water flows through the gap between the cylinder liner and the cylinder block, allowing the coolant to directly contact the cylinder liner, thereby achieving better heat dissipation. However, the cooling water channel occupies space outside the cylinder liner, reducing the contact area between the support shoulder and the cylinder liner, and increasing cylinder liner vibration.
[0003] To reduce cylinder liner vibration, the support shoulder height can be increased and the cross-sectional dimensions of the cooling water channel can be reduced. At the same time, as the coolant flows from the larger-diameter external pipe into the smaller-diameter cooling water channel, the coolant velocity increases as it passes through the cylinder liner, thereby removing more heat.
[0004] Therefore, in order to reduce the vibration of the cylinder liner without affecting the cooling effect, the present application provides a cylinder liner support structure. Utility Model Content
[0005] In order to overcome the problems existing in the related art, the present application provides a cylinder liner support structure, comprising: a cylinder block and a cylinder liner;
[0006] The cylinder body is provided with a cylinder groove for mounting the cylinder liner; a first supporting shoulder and a second supporting shoulder are provided on the groove wall of the cylinder groove;
[0007] The first supporting shoulder and the second supporting shoulder are used to abut against the side wall of the cylinder liner;
[0008] The cylinder block, the first support shoulder, the second support shoulder and the cavity surrounded by the cylinder liner form a cooling water channel;
[0009] The top surface and bottom surface of the cooling water channel are respectively provided with a water channel outlet and a water channel inlet;
[0010] The height of the interval between the first supporting shoulder and the second supporting shoulder is 20-30 mm.
[0011] In one embodiment, N guide plates are provided above the cooling water inlet in the cooling water channel, where N is an integer greater than or equal to 2.
[0012] In one embodiment, the N guide plates are symmetrically arranged around the circumferential center of the cylinder liner.
[0013] In one embodiment, the top of the guide plate is inclined toward one side in the height direction.
[0014] In one embodiment, the surface of the guide plate is a curved surface.
[0015] In one embodiment, the height directions of the first support shoulder and the second support shoulder are perpendicular to the groove wall of the cylinder groove, the first support shoulder and the second support shoulder surround the circumference of the cylinder groove, and the first support shoulder and the second support shoulder are used to abut the cylinder liner.
[0016] In one embodiment, the cylinder liner is made of compacted graphite iron.
[0017] In one embodiment, a sealing ring is provided between the first supporting shoulder and the cylinder liner, and between the second supporting shoulder and the cylinder liner.
[0018] The technical solution provided by this application may have the following beneficial effects:
[0019] To reduce cylinder liner vibration, the present application increases the support height of the support shoulder and reduces the cross-sectional dimensions of the cooling water channel. When coolant flows from the larger diameter external pipe into the smaller diameter cooling water channel, the coolant velocity increases in the area passing through the cylinder liner, thereby removing more heat.
[0020] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.
[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the cylinder liner support structure shown in an embodiment of the present application;
[0023] Figure 2 for Figure 1 A BB cross-sectional view of the A region of the cylinder liner support structure shown;
[0024] Figure 3 for Figure 1 A schematic diagram of the guide plate structure of the cylinder liner support structure is shown;
[0025] Figure 4 for Figure 1 A schematic diagram of the cylinder liner structure of the cylinder liner support structure shown;
[0026] Description of the accompanying drawings: cylinder block 1, cylinder groove 101, first support shoulder 102, second support shoulder 103, cooling water channel 104, guide plate 105, cylinder liner 2, sealing ring 201. DETAILED DESCRIPTION
[0027] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred 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 limited by the embodiments described herein. Instead, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.
[0028] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. As used in this application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
[0029] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0030] In a wet cylinder block 1, cooling channel 104 forms the gap between the cylinder liner 2 and the cylinder block 1, allowing coolant to directly contact the cylinder liner 2, thereby achieving better heat dissipation. However, the obstruction of cooling channel 104 also reduces the support area of the support shoulder on the cylinder liner 2, increasing the vibration of the cylinder liner 2.
[0031] To reduce the vibration of the cylinder liner 2, the support height of the support shoulder can be increased and the cross-sectional dimensions of the cooling water channel 104 can be reduced. When the coolant flows from the larger diameter external pipe into the smaller diameter cooling water channel 104, the coolant flow rate in the area of the cylinder liner 2 is accelerated, thereby removing more heat.
[0032] An embodiment of the present application provides a cylinder liner support structure, including: a cylinder block 1 and a cylinder liner 2.
[0033] like Figure 1 As shown, the cylinder body 1 and the cylinder liner 2 of the cylinder liner support structure shown in the embodiment of the present application are assembled to form a cylinder with a cooling water channel.
[0034] like Figure 2As shown, the cylinder block 1 is provided with a cylinder groove 101 for mounting the cylinder liner 2; a first supporting shoulder 102 and a second supporting shoulder 103 are provided on the groove wall of the cylinder groove 101. The first supporting shoulder 102 and the second supporting shoulder 103 are used to abut against the side wall of the cylinder liner 2.
[0035] Specifically, the height directions of the first supporting shoulder 102 and the second supporting shoulder 103 are perpendicular to the groove wall of the cylinder groove 101 , and the first supporting shoulder 102 and the second supporting shoulder 103 surround the circumference of the cylinder groove 101 .
[0036] In the embodiment of the present application, the cavity surrounded by the cylinder block 1, the first support shoulder 102, the second support shoulder 103, and the cylinder liner 2 forms a cooling water channel 104. A water channel outlet and a water channel inlet are respectively provided on the top and bottom surfaces of the cooling water channel 104.
[0037] Specifically, the water channel outlet and the water channel inlet are openings on the cylinder block 1 , which are connected to the cold water channel inside the cylinder block 1 .
[0038] In the embodiment of the present application, the coolant flows in from the water channel inlet, contacts and exchanges heat with the cylinder liner 2 in the cooling water channel 104, and flows out from the water channel outlet with the increased temperature.
[0039] In order to improve the support of the supporting shoulder to the cylinder liner 2, the embodiment of the present application increases the height of the second supporting shoulder 103, and the spacing height between the second supporting shoulder 103 and the first supporting shoulder 102 is 20-30 mm.
[0040] As the height between the two supporting shoulders decreases, the cross-sectional size of the cooling water channel 104 becomes smaller, and the flow rate of the coolant in the cooling water channel 104 increases.
[0041] Specifically, such as Figure 2 In the cylinder liner support structure shown, a sealing ring 201 is provided between the first supporting shoulder 102 and the cylinder liner 2 , and between the second supporting shoulder 103 and the cylinder liner 2 . The sealing ring is provided on the cylinder liner 2 .
[0042] It can be understood that the sealing ring 201 and the cylinder liner 2 are coaxial and interference fit to prevent the coolant from leaking from the cooling water channel 104 .
[0043] Preferably, the cylinder liner 2 is made of compacted graphite iron.
[0044] However, the diameter of the cooling water channel 104 at the junction with the external pipe changes, and the flow rate in the cooling water channel 104 is accelerated due to the reduction in the diameter, so the pressure in the cooling water channel 104 is reduced, which will cause the generation of a large number of cavitations.
[0045] Cavitation is a type of damage caused by liquid cavitation on the surface of a machine part. It is characterized by clusters of small holes on the metal surface of the machine part, which appear as peak-shaped or dispersed holes.
[0046] Furthermore, in order to prevent cavitation from corroding the cylinder, N guide plates 105 are provided above the cooling water inlet in the cooling water channel 104. Figure 3 As shown, N guide plates 105 are symmetrically arranged around the cross-sectional center of the cylinder liner 2 .
[0047] Specifically, the top of the guide plate 105 is inclined toward one side in the height direction. The guide plate 105 is a curved surface.
[0048] In the embodiment of the present application, the coolant flows in from the water channel inlet and first washes over the guide plate 105. The curved surfaces of the N guide plates 105 are inclined in the same circumferential direction, so that the coolant forms a spiral vortex when passing through the guide plates 105. The vortex flows around the cylinder liner 2 in the height direction and then flows out from the water channel outlet. Through the guiding effect of the guide plates 105, the embodiment of the present application allows cavitation bubbles generated by the pressure difference in the coolant to flow through the cylinder liner along the vortex, preventing the cavitation bubbles from bursting on the surface of the cylinder liner, thereby preventing cavitation from occurring in the cylinder liner.
[0049] The embodiments of the present application have been described above. The above description is illustrative and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.
Claims
1. A cylinder liner support structure, characterized in that: include: Cylinder block (1) and cylinder liner (2); The cylinder body (1) is provided with a cylinder groove (101) for mounting the cylinder liner (2); a first supporting shoulder (102) and a second supporting shoulder (103) are provided on the groove wall of the cylinder groove (101); The first supporting shoulder (102) and the second supporting shoulder (103) are used to abut against the side wall of the cylinder liner (2); The enclosed cavity between the cylinder block (1), the first supporting shoulder (102), the second supporting shoulder (103) and the cylinder liner (2) forms a cooling water channel (104); The top surface and bottom surface of the cooling water channel (104) are respectively provided with a water channel outlet and a water channel inlet; The height of the interval between the first supporting shoulder (102) and the second supporting shoulder (103) is 20-30 mm.
2. The cylinder liner support structure according to claim 1, characterized in that: N guide plates (105) are provided above the cooling water inlet in the cooling water channel (104), where N is an integer greater than or equal to 2.
3. The cylinder liner support structure according to claim 2, characterized in that: The N guide plates (105) are symmetrically arranged around the circumferential center of the cylinder liner (2).
4. The cylinder liner support structure according to claim 3, characterized in that: The top of the guide plate (105) is inclined toward one side in the height direction.
5. The cylinder liner support structure according to claim 4, characterized in that: The plate surface of the guide plate (105) is a curved surface.
6. The cylinder liner support structure according to claim 1, characterized in that: The height directions of the first supporting shoulder (102) and the second supporting shoulder (103) are perpendicular to the groove wall of the cylinder groove (101); the first supporting shoulder (102) and the second supporting shoulder (103) surround the circumference of the cylinder groove (101); and the first supporting shoulder (102) and the second supporting shoulder (103) are used to abut the cylinder liner (2).
7. The cylinder liner support structure according to claim 1, characterized in that: The material of the cylinder sleeve (2) is vermicular cast iron.
8. The cylinder liner support structure according to claim 1, characterized in that: A sealing ring (201) is provided between the first supporting shoulder (102) and the cylinder liner (2), and between the second supporting shoulder (103) and the cylinder liner (2).