Low-cost lightweight protective top cover for an engine

By designing a low-cost, lightweight protective top cover for the engine, and utilizing a composite steel plate structure of the protective main board, sides, and reinforcements, the problem of debris accumulation on the top of the cylinder head cover was solved, reducing the risk of vehicle fire and improving the durability and ease of installation of the protective top cover.

CN224679594UActive Publication Date: 2026-08-25GUANGXI YUCHAI MASCH CO LTD
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Patent Information

Application Number
CN202521852818.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-29
Publication Date
2026-08-25
Estimated Expiration
2035-08-29

AI Technical Summary

Technical Problem

The top of the engine cylinder head cover can easily accumulate crop debris, increasing the risk of a vehicle fire.

Method used

Design a low-cost, lightweight protective top cover for an engine, including a protective main board, first and second protective sides and reinforcements, inclined side arrangement and composite steel plate structure, which removes debris through vibration, and the design of fixing plates and holes improves robustness and enhances structural strength.

Benefits of technology

It effectively prevents the accumulation of crop debris, reduces the risk of vehicle fire, and improves the durability and ease of installation of the protective cover.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides an engine low-cost lightweight protective top cover and belongs to the technical field of engine protective covers. The engine low-cost lightweight protective top cover comprises an engine assembly and a protective assembly. The engine assembly comprises a cylinder block, a cylinder head, a cylinder head cover and a supercharger. The protective assembly comprises a protective main plate, a first protective side edge, a second protective side edge and a reinforcing piece. The protective top cover composed of the protective main plate, the first protective side edge and the second protective side edge is installed between the supercharger and the cylinder head cover. The lighter protective top cover covers the oil pipe and other components to avoid the contact of crop leaves. The inclined side edge makes the leaves falling on the top fall down along with the vibration of the engine, which can effectively avoid the accumulation of crop leaves and reduce the risk of vehicle fire accidents caused by crop leaves.
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Description

Technical Field

[0001] This application relates to the field of engine protective covers, and more specifically, to a low-cost, lightweight protective top cover for engines. 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 often has multiple sub-series, widely used in engineering machinery, agricultural machinery, and marine machinery. Different emission levels and market demands result in different fuel systems and injectors from various manufacturers. The differences in injector shapes lead to variations in cylinder head cover structures, particularly for agricultural machines such as wheat and corn harvesters.

[0003] Currently, crop debris tends to accumulate on the top of the engine cylinder head cover of some agricultural machinery, posing a risk of causing the entire vehicle to catch fire. A fireproof top cover for the cylinder head is designed to prevent the accumulation of crops. Summary of the Invention

[0004] To overcome existing shortcomings, this application provides a low-cost, lightweight protective cover for engines, which can solve the problem that crop debris easily accumulates on the top of the engine cylinder head cover on some agricultural machinery, leading to the risk of the entire vehicle catching fire. A fireproof cover for the cylinder head is designed to avoid the problem of crop accumulation.

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

[0006] A low-cost, lightweight protective cover for an engine 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 located on top of the cylinder block, the cylinder head cover is located on top of the cylinder head, and the turbocharger is located on one side of the cylinder block.

[0008] The protective assembly includes a protective main board, a first protective side, a second protective side, and a reinforcing member. The protective main board is installed on the top of the cylinder head cover. The first protective side is provided at both ends of the protective main board. The second protective side is provided at the edge of the protective main board. The reinforcing member is provided on the top of the protective main board.

[0009] In one specific implementation, a vent pipe is provided on one side of the cylinder body, and a clearance port is provided at one end of the protective main plate.

[0010] In the above implementation process, a clearance opening is made for the air pipe on the cylinder block to pass through. The air pipe passes through to the bottom of the protective main plate to avoid being blocked by the first protective side and the second protective side.

[0011] In one specific implementation, both the first protective side and the second protective side are arranged at an angle.

[0012] In the above implementation process, the inclined arrangement of the first and second protective sides can cause the broken leaves that fall to the top to fall down with the vibration of the engine.

[0013] In one specific implementation, a fixing plate is provided on the outer side of the second protective side, and the fixing plate has a through hole.

[0014] In the above implementation process, a fixing plate is set and through holes are opened for further fixing with screws or bolts to improve the firmness.

[0015] In one specific implementation, both the fixing plate and the protective main plate are provided with clearance grooves.

[0016] In the above implementation process, multiple clearance slots are opened to make room for the booster pipes and other pipes.

[0017] In one specific implementation, the protective motherboard has mounting holes, and multiple mounting holes are provided.

[0018] In the above implementation process, multiple fixing holes are opened to accommodate screws or bolts that pass through the fixing holes and are fixed to the reserved holes on the cylinder head cover.

[0019] In one specific implementation, the reinforcing member includes a first square rib and a second square rib, the first square rib and the second square rib being located at both ends of the protective mainboard, respectively.

[0020] In the above implementation process, by setting the first square rib and the second square rib, the structural strength of the entire protective top cover can be increased and its durability improved.

[0021] In one specific implementation, the protective motherboard, the first protective side, and the second protective side are all composite steel plates.

[0022] In the above process, composite steel plates have advantages such as light weight, good formability, and easy cutting, which facilitates production.

[0023] The advantages of this embodiment are: by setting up a cylinder block, cylinder head, cylinder head cover, turbocharger, protective main board, first protective side, second protective side and reinforcing member, and using a protective top cover composed of the protective main board, first protective side and second protective side, which is installed between the turbocharger and cylinder head cover, the lighter protective top cover covers the oil pipe or injector components to prevent contact with crop debris, and the inclined side will cause the debris that falls to the top to fall off with the vibration of the engine, which can effectively prevent the accumulation of crop debris in the gaps on the top of the engine and reduce the risk of vehicle fire caused by crop debris. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the low-cost, lightweight protective top cover structure for engines provided in the embodiments of this application;

[0025] Figure 2 A schematic diagram of the protective component structure provided for an embodiment of this application;

[0026] Figure 3 A schematic diagram of the first protective side structure provided for an embodiment of this application;

[0027] Figure 4 A schematic diagram of the reinforcing member structure provided for an embodiment of this application.

[0028] In the diagram: 100-Engine assembly; 110-Cylinder block; 120-Cylinder head; 130-Cylinder head cover; 140-Turbocharger; 150-Suffix pipe; 200-Protective assembly; 210-Protective main plate; 211-Lean-out port; 212-Fixing hole; 220-First protective side; 240-Second protective side; 241-Fixing plate; 242-Through hole; 260-Reinforcing member; 261-First square rib; 262-Second square rib; 270-Lean-out groove. 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 1-4 This application provides a low-cost, lightweight protective cover for an engine, including an engine assembly 100 and a protective assembly 200.

[0033] Please see Figure 1The engine assembly 100 includes a cylinder block 110, a cylinder head 120, a cylinder head cover 130, and a turbocharger 140. The cylinder head 120 is located on top of the cylinder block 110, the cylinder head cover 130 is located on top of the cylinder head 120, and the turbocharger 140 is located on one side of the cylinder block 110.

[0034] Please see Figure 1 , 2 3 and 4, the protective component 200 includes a protective main board 210, a first protective side 220, a second protective side 240 and a reinforcing member 260. The protective main board 210 is installed on the top of the cylinder head cover 130. The first protective side 220 is provided at both ends of the protective main board 210. The second protective side 240 is provided at the edge of the protective main board 210. The reinforcing member 260 is provided on the top of the protective main board 210.

[0035] The cylinder body 110 has a vent pipe 150 on one side, and the protective main plate 210 has a clearance port 211 at one end. The clearance port 211 is used to allow the vent pipe 150 on the cylinder body 110 to pass through. The vent pipe 150 passes through to the bottom of the protective main plate 210 to avoid being blocked by the first protective side 220 and the second protective side 240.

[0036] Specifically, both the first protective side 220 and the second protective side 240 are arranged at an angle. The angled arrangement of the first protective side 220 and the second protective side 240 can cause the broken leaves that fall to the top to fall down with the vibration of the engine.

[0037] In this embodiment, a fixing plate 241 is provided on the outer side of the second protective side 240. The fixing plate 241 has a through hole 242. By setting the fixing plate 241 and having a through hole 242, screws or bolts are used to further fix it and improve its firmness.

[0038] It should be noted that both the fixed plate 241 and the protective main plate 210 are provided with clearance slots 270. The clearance slots 270 are provided to make way for the booster 140 pipe and other pipes.

[0039] In one specific implementation, the protective main board 210 has a fixing hole 212, and multiple fixing holes 212 are provided. By providing multiple fixing holes 212, screws or bolts are used to pass through the fixing holes 212 and be fixed to the reserved holes on the cylinder head cover 130.

[0040] In this embodiment, the reinforcing member 260 includes a first square rib 261 and a second square rib 262. The first square rib 261 and the second square rib 262 are located at both ends of the protective main board 210, respectively. By setting the first square rib 261 and the second square rib 262, the structural strength of the entire protective top cover can be increased and its durability can be improved.

[0041] In one specific implementation, the protective main board 210, the first protective side 220, and the second protective side 240 are all composite steel plates. Composite steel plates have advantages such as light weight, good formability, and easy cutting, which facilitates production.

[0042] The working principle of this low-cost, lightweight protective top cover for engines is as follows: During installation, the protective main plate 210 is horizontally inserted between the cylinder head cover 130 and the turbocharger 140. The protective main plate 210 is positioned so that its fixing hole 212 aligns with the reserved hole on the cylinder head cover 130. Then, it is fixed in place by bolts passing through the fixing hole 212. The lightweight protective top cover can cover the high-pressure oil pipe, injector, and gaps in the cylinder head cover 130. During engine operation, vibrations will be generated, causing the protective main plate 210, the first protective side 220, and the second protective side 240 to vibrate synchronously. The tilted first protective side 220 and second protective side 240 will cause fallen leaves to fall off with the engine vibration, which can effectively prevent crop leaves from accumulating in the gaps on the top of the engine and reduce the risk of vehicle fire caused by crop leaves.

[0043] It should be noted that the specific model and specifications of the turbocharger 140 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 140 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 low-cost, lightweight protective top cover for an engine, 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 (140), wherein the cylinder head (120) is located on top of the cylinder block (110), the cylinder head cover (130) is located on top of the cylinder head (120), and the turbocharger (140) is located on one side of the cylinder block (110). The protective component (200) includes a protective main board (210), a first protective side (220), a second protective side (240), and a reinforcing member (260). The protective main board (210) is mounted on the top of the cylinder head cover (130). The first protective side (220) is provided at both ends of the protective main board (210). The second protective side (240) is provided at the edge of the protective main board (210). The reinforcing member (260) is provided on the top of the protective main board (210).

2. The low-cost, lightweight protective top cover for an engine according to claim 1, characterized in that, The cylinder body (110) is provided with a vent pipe (150) on one side, and the protective main plate (210) is provided with a clearance port (211) at one end.

3. The low-cost, lightweight protective top cover for an engine according to claim 1, characterized in that, Both the first protective side (220) and the second protective side (240) are arranged at an angle.

4. The low-cost, lightweight protective top cover for an engine according to claim 1, characterized in that, A fixing plate (241) is provided on the outer side of the second protective side (240), and the fixing plate (241) has a through hole (242).

5. The low-cost, lightweight protective top cover for an engine according to claim 4, characterized in that, Both the fixing plate (241) and the protective main plate (210) are provided with clearance grooves (270).

6. The low-cost, lightweight protective top cover for an engine according to claim 1, characterized in that, The protective motherboard (210) has a fixing hole (212), and there are multiple fixing holes (212).

7. The low-cost, lightweight protective top cover for an engine according to claim 1, characterized in that, The reinforcing member (260) includes a first square rib (261) and a second square rib (262), which are located at both ends of the protective main board (210).

8. The low-cost, lightweight protective top cover for an engine according to claim 1, characterized in that, The protective main board (210), the first protective side (220), and the second protective side (240) are all composite steel plates.