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cylinder block

A technology of cylinder block and cylinder hole, applied in the direction of cylinder, cylinder head, engine components, etc., can solve the problems of low circumferential positioning strength of cylinder liner, easy vibration of cylinder liner, aggravated cavitation of cylinder liner, etc. Corrosion probability, compact design, improved reliability effect

Active Publication Date: 2018-08-10
GUANGXI YUCHAI MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a cylinder block, so as to overcome the defects of low circumferential positioning strength of the cylinder liner, easy vibration of the cylinder liner, and aggravated cavitation of the cylinder liner by the cooling liquid

Method used

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Embodiment Construction

[0027] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0028] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0029] Such as Figure 7-9 As shown, the cylinder block according to the specific embodiment of the present invention includes a plurality of cylinder liners 310 and the same number of cylinder bores 320 .

[0030] Such as Figure 7 As shown, the outer wall of the cylinder liner 310 is provided with a first circumferential positioning section 311, an axial positioning section, and a second circumferential positioning sect...

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Abstract

The invention discloses a cylinder body which comprises a plurality of cylinder sleeves and cylinder holes.The outer wall of each cylinder sleeve is provided with a first circumference positioning section, an axial positioning section and a second circumference positioning section with the diameters sequentially decreased.The number of the cylinder holes is the same as that of the cylinder sleeves.The inner wall of each cylinder hole is provided with a step face, the diameter of a large-diameter hole of each step face is the same as the diameter of the first circumference positioning section, so water sleeves are formed by the axial positioning section; the diameter of a small-diameter section of each step face is the same as that of the second circumference positioning section; the step face between the axial positioning section and the second circumference positioning section abuts against the step faces of the cylinder holes; and beams are arranged between the water sleeves of every two adjacent cylinder holes.The installation strength of the cylinder holes is improved, the height positioning reliability of the cylinder sleeves is improved, circumferential vibration of the cylinder sleeves can be effectively reduced, the cavitation erosion probability of the cylinder sleeves is reduced, and the reliability of an engine is improved; the cylinder diameter can be increased to the maximum extent on the basis of a limited cylinder distance, and the compact design of the whole machine is achieved.

Description

technical field [0001] The invention relates to the field of engines, in particular to a cylinder block. Background technique [0002] The wet cylinder liner used for piston engine is generally cylindrical structure, which is installed in the cylinder bore of the cylinder block, and the outside of the cylinder liner is surrounded by coolant, which is called a water jacket. The wet cylinder liner needs axial positioning and circumferential positioning structure, so that it can be accurately installed in the cylinder bore, ensure that there is an appropriate height difference between the sealing end surface of the cylinder liner and the top surface of the cylinder block, and ensure the relative positional relationship between the cylinder liner and the crankshaft , so as to ensure the precise position of the piston and the sealing of the cylinder gasket. Among them, the axial positioning structure of the cylinder liner is also called the support structure, which generally act...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02F1/00F02F1/14F02F1/18
CPCF02F1/004F02F1/14F02F1/18
Inventor 覃文覃壮革廖升友田书平郑直
Owner GUANGXI YUCHAI MASCH CO LTD
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