Single-column type automobile engine body

An automobile engine, single-row technology, applied in the direction of engine components, machines/engines, cylinders, etc., can solve the problems of cylinder liner hole ellipticity increase, cylinder liner hole out of round, affecting engine performance and reliability, etc., to achieve processing Easier, prevents blow-by, and improves cooling performance

Inactive Publication Date: 2007-07-04
张庆义
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, for the engine block with dry cylinder liners, due to the temperature rise when the engine is working, the cylinder liner is heated and expanded, which causes the ellipticity of the cylinder liner hole to increase, causing the cylinder liner hole to be out of round, which affects the performance and reliability of the engine.

Method used

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  • Single-column type automobile engine body
  • Single-column type automobile engine body
  • Single-column type automobile engine body

Examples

Experimental program
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Embodiment Construction

[0013] In conjunction with Fig. 1 and Fig. 2, a single-row automobile engine body is composed of a cast crankcase 2 and a cylinder block 1. There is a water trap outside the hole wall, and the centerlines of the cylinder bores are located in the same plane. The distance between the walls of the cylinder 3 provided on the cylinder block 1 is 8 mm, and the distance between the cylinder centers / bore diameter is L 0 / D=1.11. In this embodiment, the design of the water jacket between two adjacent cylinders is abandoned. In the water interlayer, within 60mm below the top surface of the body, support columns are symmetrically arranged on both sides of the plane where the center line of the cylinder liner hole is located. ; For the convenience of casting production, a mud core support 4 is provided in the interval between two adjacent cylinders 3 (refer to Figure 2). In order to solve the problem of enhanced cooling of the engine, intersecting cooling water holes 6 (refer to FIG. 2 )...

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Abstract

The invention relates to a single-inline automobile engine block, belonging to engine block technological area, comprising crankcase cast together, cylinder block and cylinder trepanning bore. Clipping water layer is set outside of bore wall and central lines of all cylinder trepanning bores are located in the same face. Supporting column is set in said clipping water layer, which is apart from the block top with 60mm and is bisymmetric in the face of the central line of cylinder trepanning bore. Cylinder centre distance L0 to cylinder diameter D of the cylinder barrel on said cylinder block is 1.11-1.15 and chaplet is set in the interval of cylinder barrel. Compared with homogeneous engine, the engine fabricated in the invention is provided with decreased figure dimension, decreased weight. Its usage has a positive meaning to decrease the noise pollution for engine; meanwhile the invention can control the uniform thermal deformation of cylinder trepanning bore, decrease circle loss and prevent phenomenon of gas leakage, burning lube oil and deadlocking of piston ring. It is machined easily and expediently.

Description

technical field [0001] The technical field related to the technical solution of the present invention is engine block. Background technique [0002] In the production of automobiles, the engine generally adopts multi-cylinders. This multi-cylinder engine body is composed of a crankcase and a cylinder block cast as one. In the design of the body, especially the body of the automobile engine, in order to solve the compactness of the engine, reduce the overall size of the engine, reduce the weight of the engine, try to use a smaller cylinder center distance, and the current cylinder center distance / bore of the single-row machine body is generally L 0 / D (distance between two adjacent cylinders / bore diameter) = 1.20 to 1.25. The body is the frame of the engine, which vibrates under the excitation of gas force and mechanical force, and is the main noise source of the engine. In addition, for the engine block with dry cylinder liners, due to the temperature rise of the engine w...

Claims

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Application Information

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IPC IPC(8): F02F1/10F02F7/00
Inventor 张庆义
Owner 张庆义
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