Air cylinder and cylinder head matching body

A matching body and cylinder head technology, applied in the direction of cylinder head, cylinder, liquid displacement machinery, etc., can solve the problems of cost increase, easy damage of cylinder gasket, reduction of cylinder head's bearing capacity of cylinder implosion pressure, etc., to increase The gas pressure in the cylinder, the structure is simple, and the effect of eliminating the bending moment

Inactive Publication Date: 2012-11-21
ZEROQ SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The cylinder head and the cylinder of the valve train of the traditional piston engine and piston gas compressor are usually connected by the cylinder gasket and the cylinder head bolts. This structure has been widely used, but because the cylinder gasket is easy to damage, and for To ensure the tightness, the pre-tightening force of the cylinder head bolts must be at a high level, so the cost of effective sealing between the cylinder and the cylinder head is greatly increased
Not only that, with the continuous increase of the explosion pressure of the engine and the increase of the pressure of the piston gas compressor, the connection method of the traditional cylinder head gasket and cylinder head bolts can no longer meet the requirements
One of the main reasons is that when the pre-tightening force of the cylinder head bolts is high, the cylinder head is also subjected to a large bending moment, and the direction of the force exerted by the bending moment on the cylinder head is related to the gas pressure in the cylinder. The force generated by the cylinder head is consistent. In other words, in this structure, the cylinder head not only bears the action of the gas pressure in the cylinder, but also bears the action of the bending moment generated when the cylinder head bolts are pre-tightened. It greatly reduces the cylinder head's ability to withstand the explosion pressure in the cylinder

Method used

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  • Air cylinder and cylinder head matching body
  • Air cylinder and cylinder head matching body
  • Air cylinder and cylinder head matching body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] like figure 1 The cylinder head matching body shown includes a body 1, a cylinder liner 2, a cylinder head 3 and a sealing ring 4. The cylinder liner 2 is arranged in the cylinder hole 61 of the body 1, and the cylinder head 3 passes through the cylinder head Bolts are fixedly connected with the body 1, and the sealing ring 4 is arranged in the cylinder liner 2 and sealingly fits with the inner edge 23 of the mating surface of the cylinder liner 2 and the cylinder head 3. In the cylinder head 3 A gas distribution port 5 is arranged on the top, and a gas distribution valve is arranged at the gas distribution port 5 .

[0045] The high-pressure gas in the cylinder exerts force on the sealing ring 4 arranged in the cylinder, thereby realizing the sealing effect of the sealing ring 4 on the cylinder head 3 and the cylinder liner 2, and further strengthening the cylinder head 3 The seal between the cylinder liner 2 and the cylinder liner 2 greatly reduces the high pre-tigh...

Embodiment 2

[0047] like figure 2 The difference between the shown cylinder head matching body and the first embodiment is that the body 1 and the cylinder liner 2 are integrated into a body-cover integrated body 6 .

[0048] The high-pressure gas in the cylinder exerts force on the sealing ring 4 arranged in the cylinder, thereby realizing the sealing effect of the sealing ring 4 on the cylinder head 3 and the body-cover integrated body 6, further strengthening the The seal between the cylinder head 3 and the integrated body 6 of the body cover.

Embodiment 3

[0050] like image 3 The difference between the illustrated cylinder head matching body and Embodiment 1 is that a sealing load-bearing closing structure 41 is provided at the upper opening of the cylinder bore 61 of the body 1 and at the upper opening of the cylinder liner 2 , so that The sealing and bearing closing structure 41 plays the role of bearing and sealing cooperation.

[0051] The so-called load-bearing sealing fit refers to the fit that plays a sealing role and a load-bearing role at the same time. The purpose of the sealing fit is to prevent the high-temperature and high-pressure gas in the cylinder from leaking between the cylinder head 3 and the sealed load-bearing closing structure 41. The load-bearing is It means that the seal bearing closing structure 41 can withstand the force of the high temperature and high pressure gas in the cylinder on the cylinder head 3 and the sealing bearing closing structure 41 .

[0052] Optionally, a sealing bearing closing mec...

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Abstract

The invention discloses an air cylinder and cylinder head matching body which comprises a cylinder block, an air cylinder liner, an air cylinder head and a seal ring, wherein the air cylinder liner is arranged in an air cylinder hole of the cylinder block; the air cylinder head is fixedly connected with the cylinder block through cylinder head bolts; and the seal ring is arranged in the air cylinder liner and matched with an inner side line of a matching surface of the air cylinder liner and the air cylinder head in a sealed manner. The air cylinder and cylinder head matching body is simple in structure, greatly eliminates a bending moment of pre-tightening forces of the cylinder head bolts on the air cylinder head, and greatly increases the capability of the air cylinder head of bearing the pressure of gas in a cylinder.

Description

technical field [0001] The invention relates to the field of engines and gas compressors, in particular to a cylinder head matching body. Background technique [0002] The cylinder head and the cylinder of the valve train of the traditional piston engine and piston gas compressor are usually connected by the cylinder gasket and the cylinder head bolts. This structure has been widely used, but because the cylinder gasket is easy to damage, and for To ensure the tightness, the pre-tightening force of the cylinder head bolts must be at a high level, so the cost of effective sealing between the cylinder and the cylinder head is greatly increased. Not only that, but with the continuous increase of the explosion pressure of the engine and the increase of the pressure of the piston gas compressor, the connection method of the traditional cylinder head gasket and cylinder head bolts can no longer meet the requirements. One of the main reasons is that when the pre-tightening force o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F11/00F02F1/00F04B39/12
CPCF02F1/004F02F11/00F02F1/166F02F2001/006
Inventor 靳北彪
Owner ZEROQ SCI & TECH
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