V-type engines cylinder

Abstract

The invention discloses a V-shaped engine cylinder body, which consists of an upper cylinder body with a V angle, a sleeve, a lower framework and a main bearing cover, wherein a positioning pin and a main bearing cover bolt are arranged on the main bearing cover. The V-shaped engine cylinder body has the advantages that a V angle structure of 90 degree is adopted for the cylinder body. The distortion or deformation of the sleeve and the oil consumption can be reduced because the structure of an upper cylinder body provided with a lower framework is adopted for the cylinder body, wherein the upper cylinder body is molded by aluminum alloy; the cylinder body is directly cast in the sleeve in the process of casting; gray iron is adopted as the material for the sleeve. The lower framework body is cast by aluminum alloy; ductile cast iron main bearing cover is adopted to be cast in the aluminum alloy. In the assemblies of the upper cylinder body and the lower framework, five positioning pins are arranged on four main bearing covers for positioning, so that the assembling positions among the main bearing cover, the framework and the cylinder body can be precise in the assembling process. The cylinder body is tightly connected with the left and the right rows of fastening bolts, so that the intensity of the main bearing cover is greatly improved, thus avoiding loosening and distortion or deformation of the main bearing cover in the process of high-speed operation of the engine.

Description

technical field [0001] The invention relates to an engine part, more specifically to a structural design of a V-type 6-cylinder block of an automobile engine. Background technique [0002] The engine block is the main part of the engine, and the V-type engine has 6 cylinders, 8 cylinders, 12 cylinders and even 16 cylinders. Its cylinders are arranged in two rows, and the angle between the two rows of cylinders is 60-90 degrees, which is named after the V shape. Two rows of cylinders are arranged on a body and share a crankshaft, each with a cylinder head (that is, there are two cylinder heads). The advantage of the V-type engine is that the height is smaller than that of the in-line type, and the front of the car can be made lower, which improves the aerodynamic properties of the car, and at the same time shortens the length of the engine and the length of the crankshaft, which not only reduces the occupied space of the engine, but also makes The compactness of the engine ...

AI Technical Summary

Problems solved by technology

When the main bearing cap is running at high speed, the main bearing cap is prone to twist, and the strength cannot be guaranteed

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