High detonation pressure resistant cylinder block assembly

Abstract

The utility model discloses a high detonation pressure resistant cylinder block assembly which comprises an open groove, a first round corner and a second round corner. The open groove is formed in the joint of a main bearing hole of the air cylinder body and an outlet of the lubricating pipeline, and the open groove and the inner wall of the main bearing hole are in stable and smooth transition. The first fillet is arranged at the joint transition part between the main bearing seat and the cylinder body skirt part; and the second fillet is arranged at the joint transition part of the bolt mounting plane of the main bearing seat and the blank surface. According to the high detonation pressure resistant cylinder block assembly, the strength of the cylinder block assembly can be integrally improved by arranging the open grooves and the round corners, so that the cylinder block assembly can meet the requirement for high detonation pressure, and then an engine can be supported to meet the requirement for high detonation pressure design under the requirement for low carbon emission.

Description

Technical Field

[0001] This utility model relates to the field of engine design and manufacturing, and in particular to a cylinder block assembly resistant to high explosion pressure. Background Technology

[0002] The main bearing bore of the existing engine cylinder block is not drilled, there are sharp corners in the main bearing housing and cylinder skirt, there are no grooves in the main bearing bore, and the radius of the connection between the main bearing cap bolt mounting surface and the blank surface is small. As a result, the anti-knock performance of the diesel engine is low and cannot meet the design requirements of the diesel engine for high explosion pressure due to low carbon emissions.

[0003] There is an urgent need to find new design solutions to address the aforementioned technical problems in existing technologies.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a cylinder block assembly resistant to high explosion pressure. By setting slots and rounded corners, the overall strength of the cylinder block assembly can be improved, enabling it to meet the requirements of high explosion pressure, thereby supporting the engine to meet the requirements of high explosion pressure design under the condition of low carbon emissions.

[0006] To achieve the above objectives, this utility model provides a cylinder block assembly resistant to high explosion pressure, including a slot, a first fillet, and a second fillet; the slot is located at the junction of the main bearing hole and the outlet of the lubrication pipe in the cylinder block, and the slot smoothly transitions to the inner wall of the main bearing hole; the first fillet is located at the junction between the main bearing seat and the cylinder block skirt; the second fillet is located at the junction between the bolt mounting plane of the main bearing seat and the blank surface.

[0007] In a preferred embodiment, the groove is circular, elliptical, or elongated when viewed along the axial direction of the lubrication conduit.

[0008] In a preferred embodiment, the groove formed on the inner wall of the main bearing hole is a spherical surface, an arc surface, or a cylindrical surface.

[0009] In a preferred embodiment, the minimum size of the slot is not less than 1.5 to 3 times the inner diameter of the lubrication pipe.

[0010] In a preferred embodiment, the radii of the first fillet and the second fillet are not less than 1 / 3 to 1 / 2 of the radius of the main bearing hole.

[0011] In a preferred embodiment, the first rounded corner is a single rounded corner or a multi-rounded corner structure.

[0012] Compared with the prior art, the cylinder block assembly with high explosion pressure resistance of this utility model has the following beneficial effects: This application features grooves at the main bearing bore and lubrication pipe opening, with smooth and even transitions between the grooves, reducing the sharpness of the connections and improving explosion resistance; simultaneously, large radius angles are designed in both the main bearing seat and the cylinder block skirt, and a large radius angle is also designed at the connection between the mounting surface of the main bearing cap bolts and the blank surface, increasing the strength of the cylinder block to meet high explosion pressure requirements; through the synergistic effect of the above designs, the overall strength of the cylinder block assembly is improved, enabling it to meet the requirements of high explosion pressure, thereby supporting the engine to meet the requirements of low carbon emissions while maintaining high explosion pressure design, allowing the cylinder block's explosion pressure resistance to reach over 250 bar. Attached Figure Description

[0013] Figure 1 This is an axial cross-sectional view of a cylinder block assembly according to an embodiment of the present invention.

[0014] Figure 2 This is a schematic diagram of the axial structure of the slot according to an embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram of the axial structure of the slot according to another embodiment of the present invention;

[0016] Figure 4 This is a schematic diagram of the axial structure of the slot according to another embodiment of the present invention;

[0017] Figure 5 This is a schematic diagram of the axial structure of the slot according to another embodiment of the present invention;

[0018] Figure 6 This is a radial cross-sectional view of the slotted structure according to an embodiment of the present invention;

[0019] Figures 7 to 8 This is a three-dimensional structural diagram of a slotted structure according to an embodiment of the present invention;

[0020] Figures 9 to 10 This is a structural schematic diagram of a single rounded corner or multiple rounded corners according to an embodiment of the present invention. Detailed Implementation

[0021] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.

[0022] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0023] like Figures 1 to 6 As shown, a cylinder block assembly resistant to high explosion pressure according to a preferred embodiment of the present invention includes a slot, a first fillet, and a second fillet; the slot is provided at the junction of the main bearing hole and the outlet of the lubrication pipe in the cylinder block, and the slot smoothly transitions to the inner wall of the main bearing hole; the first fillet is provided at the junction between the main bearing seat and the cylinder block skirt; the second fillet is provided at the junction between the bolt mounting plane of the main bearing seat and the blank surface.

[0024] Please see Figures 2 to 5 In some embodiments, when viewed along the axial direction of the lubrication pipe or perpendicular to the outlet direction of the lubrication pipe, the groove can be circular, elliptical or elongated, but this invention is not limited thereto.

[0025] like Figures 6 to 8 As shown, in some embodiments, the groove formed on the inner wall of the main bearing hole is a spherical surface, an arc surface, or a cylindrical surface. That is to say, when the groove is a spherical surface, the front shape of the groove is generally circular or elliptical. When the groove is an arc surface or a cylindrical surface, the shape of the groove is generally an oblong or rectangular strip.

[0026] In some implementations, the minimum dimension of the slot (radius of a circle or ellipse, width of a strip) is not less than 1.5 to 3 times the inner diameter of the lubrication pipe.

[0027] In some implementations, the radii of the first fillet and the second fillet are generally not less than 1 / 3 to 1 / 2 of the radius of the main bearing hole.

[0028] like Figures 9 to 10 As shown, in some embodiments, the first rounded corner is generally a single rounded corner or a multi-rounded corner structure. That is, a rounded corner can be set at the first rounded corner for transition connection, or two or more rounded corners can be set for transition connection. The number of rounded corners can be determined according to the specific structure.

[0029] In summary, the high-explosion-pressure resistant cylinder block assembly of this utility model has the following advantages: The application incorporates grooves at the main bearing bore and lubrication pipe opening, with smooth and even transitions to reduce the sharpness of the connections and improve anti-explosion performance. Simultaneously, large radius angles are designed at both the main bearing seat and the cylinder block skirt, and at the connection between the mounting surface of the main bearing cap bolts and the blank surface, enhancing the cylinder block's strength to meet high explosion pressure requirements. Through the synergistic effect of these designs, the overall strength of the cylinder block assembly is improved, enabling it to meet the demands of high explosion pressure. This, in turn, supports the engine's ability to meet high explosion pressure design requirements while maintaining low carbon emissions, allowing the cylinder block's explosion pressure resistance to reach over 250 bar.

[0030] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A cylinder block assembly resistant to high explosion pressure, characterized in that, include: A groove is provided at the junction of the main bearing hole of the cylinder block and the outlet of the lubrication pipe, and the groove smoothly transitions to the inner wall of the main bearing hole. The first fillet is located at the transition point between the main bearing housing and the cylinder skirt. as well as The second fillet is located at the transition point between the bolt mounting plane and the blank surface of the main bearing housing.

2. The cylinder block assembly resistant to high explosion pressure as described in claim 1, characterized in that, Viewed along the axial direction of the lubrication conduit, the groove is circular, elliptical, or elongated.

3. The cylinder block assembly resistant to high explosion pressure as described in claim 1, characterized in that, The groove forms a spherical, arc-shaped, or cylindrical mark on the inner wall of the main bearing hole.

4. The cylinder block assembly resistant to high explosion pressure as described in claim 1, characterized in that, The minimum size of the slot is not less than 1.5 to 3 times the inner diameter of the lubrication pipe.

5. The cylinder block assembly resistant to high explosion pressure as described in claim 1, characterized in that, The radii of the first fillet and the second fillet are not less than 1 / 3 to 1 / 2 of the radius of the main bearing hole.

6. The cylinder block assembly resistant to high explosion pressure as described in claim 1, characterized in that, The first rounded corner is a single rounded corner or a multi-rounded corner structure.

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