A cylinder head cover protective structure for a split cylinder head

By designing a split cylinder head cover protective structure, and using an integrally molded protective top plate and side plate to form a structural cavity, the problem of debris falling into the cylinder head cover gap is solved, reducing the risk of fire and maintaining the overall aesthetics.

CN224579406UActive Publication Date: 2026-07-31GUANGXI YUCHAI MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGXI YUCHAI MASCH CO LTD
Filing Date
2025-08-29
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The structural differences in the cylinder head cover of a split cylinder head can cause crop debris to fall into the gap between the cylinder heads, increasing the risk of fire.

Method used

Design a cylinder head cover protection structure for a split cylinder head, including a first cover and a second cover, which are integrally formed with the protective top plate and the protective side plate, respectively, to form a structural cavity. It is fixed to the cylinder head through the connection line and mounting holes, and is equipped with a protective top cover and an information nameplate to prevent the accumulation of debris.

Benefits of technology

It effectively covers the gaps between cylinder head covers, reduces the accumulation of crop debris, lowers the probability of fire accidents, and has an overall stylish appearance and is easy to manufacture.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application provides a cylinder head cover protection structure for a split cylinder head, belonging to the technical field of engine cylinder head cover technology. This split cylinder head cover protection structure includes an engine assembly and a protective assembly. The engine assembly includes a cylinder block, a cylinder head, a cylinder head cover, and a turbocharger. The protective assembly includes a protective top plate and protective side plates. By setting up the cylinder block, cylinder head, cylinder head cover, first cover, second cover, turbocharger, protective top plate, and protective side plates, and arranging the protective top plate and protective side plates at their adjacent ends for the split first and second covers, the protective top plate and protective side plates, together with the two covers, form a structural cavity, effectively shielding the space between the first and second covers. The overall appearance is imposing, providing good protection and effectively preventing crop debris from accumulating in the gaps at the top of the cylinder head cover, thereby reducing the probability of fires caused by crop debris.
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Description

Technical Field

[0001] This application relates to the field of engine cylinder head covers, and more specifically, to a cylinder head cover protection structure for a split cylinder head. Background Technology

[0002] The cylinder head cover is an important structural component of an engine, typically cast and machined from cast iron, cast aluminum, engineering plastics, or composite materials. It protects the valve train within the cylinder head cover and reduces its noise. Currently, due to emission upgrades and market segmentation, a single engine platform model may have multiple sub-series, widely used in engineering machinery, agricultural machinery, and marine machinery. Different emission levels and market demands require fuel systems and injectors from different manufacturers, resulting in variations in injector design.

[0003] Some engines have separate cylinder heads, which are not suitable for use with an integral cylinder head cover. The large distance between the left and right cylinder heads causes structural differences in the cylinder head cover, which can easily lead to the accumulation of crop debris in the gaps on the outside of the cylinder head cover, thus increasing the risk of fire. Summary of the Invention

[0004] To overcome the shortcomings of the existing system, this application provides a cylinder head cover protection structure for a split cylinder head, which can solve the problem that the engine cylinder head is a left and right split cylinder head. Since the left and right separate cylinder heads are not suitable for an integral cylinder head cover, and the large distance between the left and right cylinder heads causes structural differences in the cylinder head cover, it is easy for crop debris to fall into the gaps on the outside of the cylinder head cover, which can lead to a high risk of fire.

[0005] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0006] A cylinder head cover protection structure for a split cylinder head includes an engine assembly and a protective assembly.

[0007] The engine assembly includes a cylinder block, a cylinder head, a cylinder head cover, and a turbocharger. The cylinder head is disposed on top of the cylinder block, the cylinder head cover is disposed on top of the cylinder head, and the turbocharger is located on one side of the cylinder head. The cylinder head cover includes a first cover and a second cover, both of which are fixedly installed on top of the cylinder head.

[0008] The protective assembly includes a protective top plate and a protective side plate. The protective top plate is fixedly connected to the ends of the first cover and the second cover, and the protective side plate is fixedly connected to the sides of the first cover and the second cover. The protective top plate, the protective side plate, and the cylinder head cover side plate form a structural cavity.

[0009] In one specific implementation, the protective top plate, the protective side plate, and the first cover are integrally formed.

[0010] In the above implementation process, by setting the first cover and the second cover to be integrally formed with their respective protective top plate and protective side plate, it is not only easy to manufacture, but also has high structural strength and durability.

[0011] In one specific implementation, the two protective top plates are connected to each other to form a butt joint, and the two protective side plates are also connected to each other.

[0012] In the above implementation process, the two protective top plates between the first cover and the second cover are connected to each other, and the two protective side plates are connected to each other. The gap between the connecting surfaces is small to form a butt joint line, which can effectively block the gap between the first cover and the second cover and prevent broken leaves from falling in.

[0013] In one specific implementation, both the first cover and the second cover are provided with a mating surface, and the mating surface has a mounting hole on its side.

[0014] In the above implementation process, mounting holes are opened to allow bolts to pass through the mounting holes and fix the first cover and the second cover to the cylinder head.

[0015] In one specific implementation, information nameplates are provided on the outer sides of both the first cover and the second cover.

[0016] In the above implementation process, by setting up information nameplates, the information nameplates can display the information of the identification cover, making it convenient for staff to operate.

[0017] In one specific implementation, a protective top cover is provided on the top of the first cover and the second cover.

[0018] In the above implementation process, by setting a protective top cover, most of the crop debris is protected, thus preventing the crop debris from directly contacting the cylinder cover.

[0019] In one specific implementation, both the first cover and the second cover are provided with internally threaded tubes at their tops, and the protective top cover is installed on the first cover and the second cover by screws connected to the internally threaded tubes.

[0020] In the above implementation process, an internally threaded tube is set as a reserved hole for the protective top cover to be tightened and installed by screw connection.

[0021] In one specific implementation, an intake pipe is provided on one side of the cylinder head, and an exhaust pipe is provided on the other side of the cylinder head.

[0022] The advantages of this embodiment are: by setting up a cylinder block, cylinder head, cylinder head cover, first cover, second cover, turbocharger, protective top plate and protective side plate, and for the split first cover and second cover, the protective top plate and protective side plate are arranged at their close ends, and the protective top plate and protective side plate are used in conjunction with the two covers to form a structural cavity, which shields the space between the first cover and the second cover. The overall appearance is grand and the protection is good. It can effectively prevent crop debris from accumulating in the gaps at the top of the cylinder head cover, thereby reducing the probability of fire accidents caused by crop debris. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the cylinder head cover protection structure of the split cylinder head provided in the embodiments of this application;

[0024] Figure 2 A schematic diagram of the cylinder head cover structure provided for an embodiment of this application;

[0025] Figure 3 A schematic diagram of the second cover structure provided for an embodiment of this application;

[0026] Figure 4 A schematic diagram of the protective top plate structure provided for an embodiment of this application;

[0027] Figure 5 A schematic diagram of the structural chamber provided for an embodiment of this application.

[0028] In the diagram: 100-Engine assembly; 110-Cylinder block; 120-Cylinder head; 121-Intake pipe; 122-Exhaust pipe; 130-Cylinder head cover; 131-First cover; 132-Second cover; 133-Mating surface; 134-Mounting hole; 135-Internal threaded pipe; 150-Turbocharger; 160-Information nameplate; 170-Protective top cover; 200-Protective components; 210-Protective top plate; 211-Connecting wire; 220-Protective side plate; 230-Structural chamber. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with embodiments.

[0030] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0031] In the embodiments, unless otherwise specified, all methods used are conventional methods in the art.

[0032] Please see Figures 1-5 This application provides a cylinder head cover protection structure for a split cylinder head, including an engine assembly 100 and a protection assembly 200.

[0033] Please see Figure 1 , 2 3. Engine assembly 100 includes cylinder block 110, cylinder head 120, cylinder head cover 130 and turbocharger 150. Cylinder head 120 is disposed on top of cylinder block 110, cylinder head cover 130 is disposed on top of cylinder head 120, turbocharger 150 is located on one side of cylinder head 120, and cylinder head cover 130 includes a first cover 131 and a second cover 132. The first cover 131 and the second cover 132 are both fixedly installed on top of cylinder head 120.

[0034] The first cover 131 and the second cover 132 are provided with a protective top cover 170. By providing the protective top cover 170, most of the crop fragments are protected and the crop fragments are prevented from directly contacting the cylinder cover 130.

[0035] In this embodiment, the top of the first cover 131 and the second cover 132 are both provided with internal threaded tubes 135. The protective top cover 170 is installed on the first cover 131 and the second cover 132 by screw connection to the internal threaded tubes 135. The internal threaded tubes 135 are provided as reserved holes for the protective top cover 170 to be tightened by screw connection.

[0036] In one specific implementation, an intake pipe 121 is provided on one side of the cylinder head 120, and an exhaust pipe 122 is provided on the other side of the cylinder head 120.

[0037] Please see Figure 1 , 2 3, 4 and 5, the protective assembly 200 includes a protective top plate 210 and a protective side plate 220. The protective top plate 210 is fixedly connected to the ends of the first cover 131 and the second cover 132. The protective side plate 220 is fixedly connected to the sides of the first cover 131 and the second cover 132. The protective top plate 210, the protective side plate 220 and the sides of the cylinder head cover 130 form a structural cavity 230.

[0038] The protective top plate 210, the protective side plate 220 and the first cover 131 are integrally formed. By setting the first cover 131 and the second cover 132 to be integrally formed with their respective protective top plate 210 and protective side plate 220, it is not only easy to manufacture, but also has high structural strength and durability.

[0039] Specifically, the two protective top plates 210 are connected to each other to form a butt joint line 211, and the two protective side plates 220 are also connected to each other. The two protective top plates 210 and the two protective side plates 220 between the first cover 131 and the second cover 132 are connected to each other, and the gap between the mating surfaces is small to form a butt joint line 211, which can effectively block the gap between the first cover 131 and the second cover 132 and prevent broken leaves from falling in.

[0040] Specifically, both the first cover 131 and the second cover 132 are provided with mating surfaces 133, and mounting holes 134 are provided on the side of the mating surfaces 133. By providing mounting holes 134, bolts are used to install and fix the first cover 131 and the second cover 132 onto the cylinder head 120.

[0041] In this embodiment, information nameplates 160 are provided on the outer sides of both the first cover 131 and the second cover 132. By providing information nameplates 160, the information nameplates 160 can display information identifying the cover, making it convenient for staff to operate.

[0042] The working principle of the cylinder head cover protection structure of this split cylinder head is as follows: During installation, the mating surfaces 133 of the first cover 131 and the second cover 132 are aligned with the top of the cylinder head 120, and then bolts are used to install and fix it onto the cylinder head 120 through the mounting holes 134. Simultaneously, during the installation of the first cover 131 and the second cover 132, the two protective top plates 210 are aligned and form a small gap butt joint line 211, and the two protective side plates 220 are also aligned. Then, the protective top cover 170 is placed on top of the first cover 131 and the second cover 132. On the 32, screws are installed into the internal threaded pipe 135 through the holes of the protective top cover 170, so that most of the fallen crop debris slides off due to vibration during engine use. The protective top plate 210 and the protective side plate 220, together with the two covers, form a structural chamber 230, which shields the space between the first cover 131 and the second cover 132. The overall appearance is impressive and the protection is good. It can effectively prevent crop debris from accumulating in the gaps at the top of the cylinder head cover 130, thereby reducing the probability of fire accidents caused by crop debris.

[0043] It should be noted that the specific model and specifications of the turbocharger 150 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0044] The power supply and principle of the booster 150 are clear to those skilled in the art and will not be described in detail here.

[0045] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A cylinder head cover protective structure for a split cylinder head, characterized in that, include An engine assembly (100) includes a cylinder block (110), a cylinder head (120), a cylinder head cover (130), and a turbocharger (150). The cylinder head (120) is disposed on the top of the cylinder block (110), the cylinder head cover (130) is disposed on the top of the cylinder head (120), and the turbocharger (150) is located on one side of the cylinder head (120). The cylinder head cover (130) includes a first cover (131) and a second cover (132), both of which are fixedly installed on the top of the cylinder head (120). The protective assembly (200) includes a protective top plate (210) and a protective side plate (220). The protective top plate (210) is fixedly connected to the ends of the first cover (131) and the second cover (132). The protective side plate (220) is fixedly connected to the sides of the first cover (131) and the second cover (132). The protective top plate (210), the protective side plate (220) and the sides of the cylinder head cover (130) form a structural cavity (230).

2. The cylinder head cover protection structure for a split cylinder head according to claim 1, characterized in that, The protective top plate (210), the protective side plate (220), and the first cover (131) are integrally formed.

3. The cylinder head cover protection structure for a split cylinder head according to claim 1, characterized in that, The two protective top plates (210) are connected to each other and form a butt joint (211), and the two protective side plates (220) are also connected to each other.

4. The cylinder head cover protection structure for a split cylinder head according to claim 1, characterized in that, Both the first cover (131) and the second cover (132) are provided with a mating surface (133), and the mating surface (133) has a mounting hole (134) on its side.

5. The cylinder head cover protective structure for a split cylinder head according to claim 1, characterized in that, Information nameplates (160) are provided on the outer sides of both the first cover (131) and the second cover (132).

6. The cylinder head cover protection structure for a split cylinder head according to claim 1, characterized in that, The first cover (131) and the second cover (132) are provided with protective top covers (170).

7. The cylinder head cover protective structure for a split cylinder head according to claim 1, characterized in that, The top of the first cover (131) and the second cover (132) are both provided with internal threaded tubes (135), and the protective top cover (170) is installed on the first cover (131) and the second cover (132) by screws.

8. The cylinder head cover protective structure for a split cylinder head according to claim 1, characterized in that, An intake pipe (121) is provided on one side of the cylinder head (120), and an exhaust pipe (122) is provided on the other side of the cylinder head (120).