Engine multi-oil channel split type machine body structure

A multi-oil circuit and split-type technology, which is applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve the problems of high risk of cylinder seal failure, difficult to arrange gas distribution, and many combination links, etc., to achieve good lubrication and cooling effects , Large material selectivity, good casting process

Inactive Publication Date: 2009-09-30
CHINA NORTH IND GRP NO 70 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of structure, there are many combination links, large hidden dangers of cylinder seal failure, long bolt structure, high flexibility, poor fatigue reliability, and relatively small rigidity of the combined structure.
In addition, the structure of the cylinder block is not easy to arrange complex mechanisms such as gas distribution and single pumps.

Method used

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  • Engine multi-oil channel split type machine body structure
  • Engine multi-oil channel split type machine body structure

Examples

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Embodiment Construction

[0011] The preferred embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0012] like figure 1 As shown, an engine multi-oil circuit split body structure includes a cylinder block 1, a crankcase 2 and a bearing cover 3. The cylinder block 1 and the crankcase 2 are positioned by cylindrical pins and connected by high-strength bolts. The crankcase 2 and the bearing The cover 3 is connected by seam positioning and high-strength bolts. The cylinder block 1 and the crankcase 2 are made of cast iron alloy or aluminum alloy, and the bearing cover 3 is made of QT400 or high-quality alloy steel forged blank. The multi-oil circuit split body structure has all the functions of the integral body, which can bear the working load of the diesel engine and play the role of supporting skeleton of related mechanisms and accessories, and provide corresponding movement space and passages required for coolant and lubricating oil. Cy...

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Abstract

The invention belongs to engines technical field, particularly an engine multi-oil channel split type machine body structure, comprising a cylinder block, a crankshaft case and a bearing cap. The cylinder block and the crankshaft case are positioned by a cylindrical pin and connected by bolts. The crankshaft case and the bearing cap are positioned by a rabbet and connected by bolts. The cylinder block is an integral structure, including a distribution column compartment, a cylinder hole and a water chamber, which are linked by an integral casting mode. The crankshaft case is fastened at the support end A plane under the cylinder hole of the cylinder block. The bearing cap is connected with the crankshaft case. Three longitudinal oil passages including an auxiliary oil passage, a distribution auxiliary oil passage and a cooling jet oil supply passage are arranged on the cylinder block. The structure has small volume, good casting process and large material selectivity. The complete structure is with great stiffness; the cylinder sealing reliability is high; multi-oil channels have good lubrication and cooling effect.

Description

technical field [0001] The invention belongs to the technical field of engines, and in particular relates to an engine multi-oil circuit split body structure. Background technique [0002] The engine block includes two parts, the cylinder block and the crankcase, which are the main load-bearing components and supporting framework of the engine. Another important function is to provide the corresponding movement space and the channels required for coolant and lubricating oil. According to the structural relationship between the cylinder block and the crankcase, the body can be divided into an integral structure body and a split structure body. The body of integral structure has high rigidity, and the arrangement of oil circuit is simple. However, its volume is huge, its structure is complicated, its casting process is difficult, and its manufacturing and maintenance costs are high. The split structure body is based on simple oil circuit requirements and structural features ...

Claims

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Application Information

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IPC IPC(8): F02F1/00F02F1/06
Inventor 狄建兵
Owner CHINA NORTH IND GRP NO 70 RES INST
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