Engine block set used for engine and engine with engine block set

Abstract

The invention discloses an engine block set used for an engine, and the engine with the engine block set. The engine block set comprises a cylinder cover and a cylinder body. The inner wall faces of the cylinder walls of cylinders are cylindrical wall faces. The cross sections of the cylinder walls are annular. Four arc-shaped sections which are sequentially connected are arranged on each annular cross section in the circumferential direction. Each arc-shaped section is further divided into a first section, a second section and a third section. The central angle corresponding to each first section is alpha1. The wall thickness of each first section is h1. The central angle corresponding to each second section is alpha2. The wall thickness of each second section is h2. The central angle corresponding to each third section is alpha3. The wall thickness of each third section is h3. The third section of each arc-shaped section is the farthest from the longitudinal central line of the engine. The first section of each arc-shaped section is the closest to the longitudinal central line. The alpha1, the alpha2 and the alpha 3 meet the relation that the sum of the alpha1, the alpha2 and the alpha 3 is equal to 90 degrees. The h1, the h2 and the h3 meet the relation that the h1 is smaller the h2 and the h2 is smaller than or equal to the h3 or meet the relation that the h1 is smaller than or equal to the h2 and the h2 is smaller than the h3. The engine block set has the beneficial effects that the weight is light, the size is small, and the deformation problem of the cylinders can be effectively solved.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a body group for an engine and an engine with the body group. Background technique [0002] The block group of the engine includes the cylinder head, cylinder head gasket, cylinder block and oil pan. A plurality of cylinders are formed in the cylinder body, and the piston can perform reciprocating linear motion in the cylinders. When the engine works in a cycle, especially for the compression stroke and the power stroke, the piston will exert a large force on the cylinder wall, and the cylinder wall is prone to deformation under the action of this force for a long time, thereby reducing the fuel economy, power and performance of the engine. Emission performance, resulting in poor performance of the engine. [0003] Existing solutions to the problem of cylinder deformation are generally to increase the thickness of the cylinder wall as a whole to make the thickness of the cylinder wal...

AI Technical Summary

Problems solved by technology

For this reason, an object of the present invention is to propose a kind of body group that is used for engine, and this body group has light weight, volume is small, and can effectively improve the deformation problem of cylinder

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