A cylinder head cover integrating a camshaft bearing cap
By integrating camshaft bearing caps into the cylinder head cover design, multiple camshaft bearing caps are integrated into the inner side of the cylinder head cover, solving the problems of complex cylinder head assembly structure and insufficient rigidity, and achieving reduced parts, lower costs, and improved NVH performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIUZHOU WULING LIUJI POWER
- Filing Date
- 2025-08-05
- Publication Date
- 2026-08-04
AI Technical Summary
The existing cylinder head assembly has a large number of parts, insufficient overall rigidity, which affects the engine's NVH performance and results in high cost.
The cylinder head cover design adopts an integrated camshaft bearing cover, which integrates the front camshaft bearing cover, intake camshaft bearing cover and exhaust camshaft bearing cover inside the cylinder head cover and simplifies the structure through a gel seal.
Reduce the number of parts, lower the overall weight and cost, shorten the development cycle, and improve overall rigidity and engine NVH performance.
Smart Images

Figure CN224592238U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cylinder head cover technology, specifically a cylinder head cover with an integrated camshaft bearing cover. Background Technology
[0002] The cylinder head cover is a cover that covers the engine block, preventing external impurities from entering the engine and providing a seal. Existing cylinder head assemblies consist of the cylinder head and the cylinder head cover. The camshaft is mounted on the cylinder head, and its axial position is fixed by a camshaft bearing cap. The cylinder head cover is mounted on the top surface of the cylinder head, sealing the camshaft chamber with a cylinder head cover gasket.
[0003] The shortcomings of the existing cylinder head cover are as follows: First, the camshaft bearing cover is a split type, that is, there is one intake camshaft bearing cover and one exhaust camshaft bearing cover for each combustion chamber, and there is also a front camshaft bearing cover at the front end of the cylinder head. The cylinder head cover is then installed on the cylinder head for sealing, resulting in a large number of parts and high overall cost. Second, the overall rigidity of the cylinder head assembly is insufficient, which affects the engine's NVH performance. Utility Model Content
[0004] To address the shortcomings of existing technologies, this application provides a cylinder head cover with an integrated camshaft bearing cover, which has the advantage of improving the performance of the cylinder head cover and solves the problem of complex overall structure and insufficient rigidity of the cylinder head cover.
[0005] To achieve the above objectives, this application provides the following technical solution: a cylinder head cover with an integrated camshaft bearing cover, comprising a cylinder head body and a cylinder head cover body, wherein the cylinder head cover body is mounted on the top of the cylinder head body, and a front camshaft bearing cover, an intake camshaft bearing cover, and an exhaust camshaft bearing cover are disposed on the inner side of the cylinder head cover body, with two sets of the front camshaft bearing covers located symmetrically on the inner side of the cylinder head cover body, and several sets of the intake camshaft bearing covers and exhaust camshaft bearing covers located linearly distributed on the inner side of the cylinder head body.
[0006] The improved cylinder head cover design adopts an integrated camshaft bearing cover solution, which is simple and compact in structure, easy to install, reduces the overall weight, lowers costs, and shortens the development cycle. It also facilitates the layout of the vehicle's engine compartment.
[0007] Preferably, the cylinder head body and the cylinder head cover body are sealed with an adhesive.
[0008] In summary, this application includes at least one of the following beneficial effects:
[0009] 1. The cylinder head cover with integrated camshaft bearing cover: The improved cylinder head cover design adopts an integrated camshaft bearing cover solution, which has a simple and compact structure and is easy to install.
[0010] 2. The cylinder head cover with integrated camshaft bearing cover: The improved integrated camshaft bearing cover design can reduce the number of engine parts such as the front camshaft bearing cover, intake camshaft bearing cover, exhaust camshaft bearing cover, and cylinder head cover gasket, resulting in reduced overall weight, lower costs, and a shorter development cycle. It also facilitates the layout of the vehicle's engine compartment.
[0011] 3. The cylinder head cover with integrated camshaft bearing cover, the improved integrated camshaft bearing cover design can enhance the overall rigidity of the cylinder head assembly and improve the engine NVH performance. Attached Figure Description
[0012] Figure 1 This is a structural diagram of the cylinder head body and cylinder head cover of this application;
[0013] Figure 2 This is a diagram showing the internal structure of the cylinder head cover in this application.
[0014] The components include: 1. Cylinder head body; 2. Cylinder head cover body; 3. Front camshaft bearing cover; 4. Intake camshaft bearing cover; 5. Exhaust camshaft bearing cover. Detailed Implementation
[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0016] Please see Figure 1-2 A cylinder head cover with integrated camshaft bearing caps includes a cylinder head body 1 and a cylinder head cover body 2. The cylinder head cover body 2 is installed on the top of the cylinder head body 1. The cylinder head body 1 and the cylinder head cover body 2 are sealed with a glue. A front camshaft bearing cap 3, an intake camshaft bearing cap 4, and an exhaust camshaft bearing cap 5 are provided on the inner side of the cylinder head cover body 2. Two sets of front camshaft bearing caps 3 are located symmetrically on the inner side of the cylinder head cover body 2. Several sets of intake camshaft bearing caps 4 and exhaust camshaft bearing caps 5 are linearly distributed on the inner side of the cylinder head body 1.
[0017] In use, the front camshaft bearing cover 3, intake camshaft bearing cover 4, and exhaust camshaft bearing cover 5 are assembled inside the cylinder head cover body 2. The cylinder head cover body 2 is sealed to the top of the cylinder head body 1 with a rubber sealant. The cylinder head cover adopts an integrated camshaft bearing cover solution, which has a simple and compact structure. It can reduce the number of parts in the engine, such as the front camshaft bearing cover 3, intake camshaft bearing cover 4, exhaust camshaft bearing cover 5, and cylinder head cover gasket, thereby reducing the overall weight, lowering the cost, and shortening the development cycle. This is beneficial for the layout of the engine compartment and improves the engine's NVH performance.
[0018] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A cylinder head cover with an integrated camshaft bearing cover, comprising a cylinder head body (1) and a cylinder head cover body (2), characterized in that: The cylinder head cover body (2) is installed on the top of the cylinder head body (1). The cylinder head cover body (2) is provided with a front camshaft bearing cover (3), an intake camshaft bearing cover (4) and an exhaust camshaft bearing cover (5). The two sets of front camshaft bearing covers (3) are located symmetrically inside the cylinder head cover body (2). Several sets of intake camshaft bearing covers (4) and exhaust camshaft bearing covers (5) are linearly distributed inside the cylinder head body (1).
2. The cylinder head cover with an integrated camshaft bearing cover according to claim 1, characterized in that: The cylinder head body (1) and the cylinder head cover body (2) are sealed together by an adhesive.