A diesel engine cylinder head cover
Patent Information
- Application Number
- CN202522545957.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-11-28
AI Technical Summary
[0003]本实用新型的目的在于提供一种柴油机缸盖罩,以解决上述背景技术提出的目前市场上的柴油机缸盖罩在进行安装的时候,密封橡胶垫直接暴露在缸盖罩与柴油机之间的接触面上,容易受到外界环境因素影响的问题
[0008]Compared with the prior art, the beneficial effects of this utility model are as follows: The diesel engine cylinder head cover has a reserved groove at the top of the cylinder head cover body. The sealing rubber gasket is engaged in the reserved groove, and with the positioning of the fixing pin, the sealing gasket is more stable during installation and less prone to displacement. During the operation of the diesel engine, even if there are factors such as vibration, the sealing gasket can be well kept in the groove, thereby effectively preventing the leakage of oil and gas and improving the reliability of the seal. Secondly, due to the setting of the fixing pin, the size of which is less than half the depth of the reserved groove, it will not affect the sealing performance of the sealing rubber strip, and can also ensure the tightness of the sealing rubber strip engagement, preventing incomplete engagement and thus facilitating the operation of the operator. In addition, the setting of the boss can enhance the local rigidity and strength of the cylinder head cover.
Smart Images

Figure CN224770313U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of diesel engine cylinder head covers, specifically a diesel engine cylinder head cover. Background Technology
[0002] Diesel engine cylinder head covers are typically thin-walled structures, shaped to match the cylinder head, to cover the cylinder head and related components. They are generally installed using bolts and screws. During installation, to ensure sealing, rubber gaskets are usually installed to prevent oil leakage and the entry of external impurities. Currently, cylinder head covers on the market are in direct contact with the rubber gaskets, achieving sealing through compression. However, due to factors such as vibration and thermal expansion and contraction during diesel engine operation, the directly covering rubber gaskets are prone to displacement or deformation, leading to decreased sealing performance and problems such as oil and air leaks. Utility Model Content
[0003] The purpose of this utility model is to provide a diesel engine cylinder head cover to solve the problem mentioned in the background art that, during the installation of existing diesel engine cylinder head covers on the market, the sealing rubber gasket is directly exposed on the contact surface between the cylinder head cover and the diesel engine, making it susceptible to the influence of external environmental factors.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a diesel engine cylinder head cover, comprising a cylinder head cover body having an open rectangular internal structure, a boss integrally mounted on the top of the cylinder head cover body, and ribs evenly distributed inside the cylinder head cover body, ignition coil mounting holes equally spaced on the top of the cylinder head cover body, and a mounting plate integrally mounted on the open top of the cylinder head cover body, with threaded holes around the mounting plate for screw or bolt fixing.
[0005] Preferably, the top opening of the cylinder head cover body is inlaid with a reserved groove, and the interior of the reserved groove is provided with fixing pins at equal intervals.
[0006] Preferably, the fixing pin and the interior of the reserved groove are connected by either adhesive bonding or threaded connection, and the top of the fixing pin is set in a conical structure.
[0007] Preferably, the size of the fixing pin is less than half the depth of the reserved groove.
[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: The diesel engine cylinder head cover has a reserved groove at the top of the cylinder head cover body. The sealing rubber gasket is engaged in the reserved groove, and with the positioning of the fixing pin, the sealing gasket is more stable during installation and less prone to displacement. During the operation of the diesel engine, even if there are factors such as vibration, the sealing gasket can be well kept in the groove, thereby effectively preventing the leakage of oil and gas and improving the reliability of the seal. Secondly, due to the setting of the fixing pin, the size of which is less than half the depth of the reserved groove, it will not affect the sealing performance of the sealing rubber strip, and can also ensure the tightness of the sealing rubber strip engagement, preventing incomplete engagement and thus facilitating the operation of the operator. In addition, the setting of the boss can enhance the local rigidity and strength of the cylinder head cover. Attached Figure Description
[0009] Figure 1 This is a top view of the structure of this utility model;
[0010] Figure 2 This is a schematic diagram of the main structure of this utility model;
[0011] Figure 3 This is a schematic diagram of the structure of this utility model from below;
[0012] Figure 4 This is a schematic diagram of the half-section structure of this utility model;
[0013] Figure 5 This is an enlarged schematic diagram of the internal structure of the reserved slot in this utility model.
[0014] In the diagram: 1. Cylinder head cover body; 2. Mounting plate; 3. Boss; 4. Ignition coil mounting hole; 5. Rib; 6. Reserved groove; 7. Fixing pin. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] Please see Figure 1-5This utility model provides a technical solution: a diesel engine cylinder head cover, including a cylinder head cover body 1, which has an open rectangular structure inside. A boss 3 is integrally installed on the top of the cylinder head cover body 1, and ribs 5 are evenly distributed inside the cylinder head cover body 1. Ignition coil mounting holes 4 are provided at equal intervals on the top of the cylinder head cover body 1. An mounting plate 2 is integrally installed on the top of the opening of the cylinder head cover body 1, and threaded holes are provided around the mounting plate 2 for screw or bolt fixing.
[0017] The top opening of the cylinder head cover body 1 is inlaid with a reserved groove 6, and the interior of the reserved groove 6 is provided with fixing pins 7 at equal intervals.
[0018] The fixing pin 7 and the reserved groove 6 are connected by either adhesive bonding or threaded connection. The top of the fixing pin 7 is set with a conical structure. By using adhesive bonding or threaded connection, it is convenient to assemble the fixing pin 7, so as to facilitate production.
[0019] The size of the fixing pin 7 is less than half the depth of the reserved groove 6.
[0020] Specifically: When using this diesel engine cylinder head cover, firstly, the operator takes the external sealing rubber gasket and engages it with the reserved groove 6. During engagement, because the reserved groove 6 has a truncated cone-shaped fixing pin 7, the fixing pin 7 will insert into the inside of the sealing rubber gasket to position it and prevent it from twisting or deforming. After engagement, the cylinder head cover body 1 is installed in the appropriate position on the diesel engine, and then the installation and fixing work is completed by passing external bolts or screws through the threaded holes on the mounting plate 2. The contents not described in detail in this manual are existing technologies known to those skilled in the art.
[0021] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A diesel engine cylinder head cover, comprising a cylinder head cover body (1) having an open rectangular internal structure, characterized in that, The top of the cylinder head cover body (1) is integrally mounted with a boss (3), and ribs (5) are evenly distributed inside the cylinder head cover body (1). Ignition coil mounting holes (4) are provided at equal intervals on the top of the cylinder head cover body (1). A mounting plate (2) is integrally mounted on the top of the opening of the cylinder head cover body (1), and threaded holes are provided around the mounting plate (2) for screw or bolt fixing.
2. A diesel cylinder head cover as claimed in claim 1, characterised in that: The top opening of the cylinder head cover body (1) is inlaid with a reserved groove (6), and the interior of the reserved groove (6) is provided with fixing pins (7) at equal intervals.
3. A diesel cylinder head cover as claimed in claim 2, characterised in that: The fixing pin (7) and the reserved groove (6) are connected by either adhesive bonding or threaded connection, and the top of the fixing pin (7) is set in a conical structure.
4. A diesel cylinder head cover as claimed in claim 2, characterised in that: The size of the fixing pin (7) is less than half the depth of the reserved groove (6).