Cylinder cover assembly

Abstract

The invention discloses a cylinder cover assembly. The cylinder cover assembly comprises a cylinder cover body and an air inlet pipe hood, wherein a first open long cavity is integrally cast on the air inlet side of the cylinder cover body, and the first long cavity forms part of an air inlet pipe of an air inlet manifold; and the air inlet pipe hood is provided with a second open long cavity, and the first long cavity and the second long cavity are buckled to form an air inlet cavity of the air inlet manifold. According to the cylinder cover assembly, part of the structure of the air inlet manifold is integrated on a cylinder cover, and the independent air inlet pipe hood serves as the other part of the structure of the air inlet manifold so that integrated design can be guaranteed, system weight can be reduced, and the manufacturability of cylinder covers is optimized.

Description

technical field [0001] The invention relates to the field of internal combustion engines, in particular to a cylinder head assembly. Background technique [0002] In the field of internal combustion engines today, the market places various demands on the engines. Especially in terms of cost and weight, the lower and lower engine prices and engine weight are a test for all OEMs. [0003] With the existing engine cylinder head, as more and more parts are integrated, the layout of the cylinder head becomes more and more complicated. The more complicated form of the cylinder head has resulted in poor casting process, difficult manufacture and high cost. The more common one is the integrated design of the cylinder head and the intake manifold. The cylinder head parts of this integrated design are large in size, complex in structure, heavy in casting weight, and poor in casting process. In addition, in order to clean the sand of the integrated casting cylinder head and shot pee...

AI Technical Summary

Problems solved by technology

[0003] The existing engine cylinder head, with more and more parts integrated design, the layout of the cylinder head becomes more and more complicated

The more complicated form of the cylinder head leads to poor casting process, difficult manufacturing and high cost

The more common one is the integrated design of the cylinder head and the intake manifold. The cylinder head parts of this integrated design are large in size, complex in structure, heavy in casting weight, and poor in casting process

In addition, in order to clean the sand of the integrated casting cylinder head and shot peen the surface of the intake port, some sand cleaning holes must be processed, which also increases the cost in disguise.

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