Unlock instant, AI-driven research and patent intelligence for your innovation.

Engine body of air-cooled diesel engine or gasoline engine with detachable cylinder jacket

A gasoline engine and diesel engine technology, applied in the direction of machines/engines, cylinders, cylinder heads, etc., can solve the problems of high use and maintenance costs, high material and environmental costs, and easy wear and tear of the body, and achieve direct use costs. Reduced, the effect is obvious, The effect of solving the problem of heat conduction

Inactive Publication Date: 2012-02-01
谢秀岳
View PDF7 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, more than ten million air-cooled diesel engines or gasoline engine bodies have been used in China, and more than one million new ones are used every year. The operating conditions and environmental conditions of agricultural, forestry and fishing machinery and equipment are relatively poor. The existing air-cooled diesel engines Or the gasoline engine body is a whole piece and is formed by heat sealing by die-casting. It has cooling fins on its periphery, and the inner cavity is a piston-type working cavity. When working, the piston reciprocates at high speed in the working cavity. , the lubricating effect is relatively poor, so that the inner wall of the body is easily worn during the working process, so the whole body needs to be replaced or repaired after about one year of use at most. Due to the defects of this integral structure, only the whole Replacement, resulting in a great waste of materials, relatively high cost of use and maintenance, high material and environmental costs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Engine body of air-cooled diesel engine or gasoline engine with detachable cylinder jacket
  • Engine body of air-cooled diesel engine or gasoline engine with detachable cylinder jacket
  • Engine body of air-cooled diesel engine or gasoline engine with detachable cylinder jacket

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as image 3 As shown, the cylinder liner 3 manufacturing process includes the following steps:

[0030] Step 1, batching and blank casting: pour the molten iron after batching into the mold of the casting machine, the batching of step 1 here is to select 60% of 18# pig iron and 40% of scrap iron to smelt the molten iron, and add alloy elements, after 10 Seconds, when the temperature of the blank drops below 830°C, push the blank out of the mold;

[0031] The chemical composition of the ingredients is controlled at 2.7-3.5% C. Here, because the cylinder liner 3 cools quickly during casting, when the C content is low, the overall hardness is high. When the C content is high, severe splitting will occur, and the strength and hardness are high. Low, C is controlled at 2.7-3.5% in the best range, 1.6-2.3% Si, the effect of Si makes the eutectic of Fe-C alloy shift to the left, which is beneficial to the diffusion and aggregation of C atoms in the molten metal, improvin...

Embodiment 2

[0039] Step 1, batching and blank casting: pour the molten iron after batching into the mold of the casting machine, the batching of step 1 here is to select 70% of 18# pig iron and 30% of scrap iron to smelt the molten iron, and add alloy elements, after 35 Seconds, when the temperature of the blank drops below 830°C, push the blank out of the mold;

[0040] The chemical composition of the ingredients is controlled at 2.7-3.5% of C, 1.6-2.3% of Si, S≤0.13%, P≤0.15%, and the composition of alloy elements is controlled at 0.3-0.5% of Ni, 0.6-0.9% of Mo, Mn ≤0.7%, Cu+Ni≥1.0%;

[0041]Step 2. Cooling and rough machining: put the blank on the cooler, air-cool or air-cool for 10 minutes to reduce the temperature of the blank to 500°C, and then rough-process the blank after air cooling;

[0042] Step 3, Tempering: put the roughly processed blank in a heat treatment furnace for tempering, the tempering temperature is controlled at 520°C, and after 4 hours of heat preservation, carry...

Embodiment 3

[0047] Step 1, batching and blank casting: pour the molten iron after batching into the mold of the casting machine, the batching of step 1 here is to select 65% of 18# pig iron and 35% of scrap iron to smelt the molten iron, and add alloy elements, after 25 Seconds, when the temperature of the blank drops below 830°C, push the blank out of the mold;

[0048] The chemical composition of the ingredients is controlled at 2.7-3.5% of C, 1.6-2.3% of Si, S≤0.13%, P≤0.15%, and the composition of alloy elements is controlled at 0.3-0.5% of Ni, 0.6-0.9% of Mo, Mn ≤0.7%, Cu+Ni≥1.0%;

[0049] Step 2. Cooling and rough machining: put the blank on the cooler, air-cool or air-cool for 7 minutes to reduce the temperature of the blank to 450°C, and then rough-process the blank after air cooling;

[0050] Step 3, Tempering: put the roughly processed blank in a heat treatment furnace for tempering, the tempering temperature is controlled at 510°C, and after 2.5 hours of heat preservation, car...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of engines, and provides an engine body of an air-cooled diesel engine or a gasoline engine with a detachable cylinder jacket. The engine body of the air-cooled diesel engine or the gasoline engine comprises the engine body which is internally provided with a cavity; the cavity in the engine body is internally provided with the cylinder jacket; the cylinder jacket and the inner wall of the cavity of the engine body are tightly fit; the cylinder jacket and the engine body are detachable and replaceable split components, and are assembled and manufactured through the steps of material distribution, blank casting, tempering, cooling rough manufacturing, inner surface hardening of the cylinder jacket, fine manufacturing and the like. The engine body provided by the invention has the advantages that as the cylinder jacket and the engine body are detachable and replaceable split components, in practical applications, when the engine body is abraded to a certain extent, only the cylinder jacket is required to be replaced, while the engine body with a heat radiation fin can still be used, therefore, the problem of heat conduction is solved, the economic burden is relieved, the defect that the whole original engine body is required to be replaced is overcome, and the manufactured cylinder jacket has high abrasion resistance and good intensity.

Description

technical field [0001] The invention belongs to the technical field of engines, relates to an air-cooled diesel engine or gasoline engine body, in particular to an air-cooled diesel engine or gasoline engine body with detachable cylinder liners. Background technique [0002] At present, more than ten million air-cooled diesel engines or gasoline engine bodies have been used in China, and more than one million new ones are added every year. The operating conditions and environmental conditions of agricultural, forestry and fishing machinery and equipment are relatively poor. The existing air-cooled diesel engines Or the gasoline engine body is a whole piece and is heat-bonded by die-casting. Its periphery has cooling fins, and the inner cavity is a piston-type working cavity. When working, the piston reciprocates at high speed in the working cavity. , the lubricating effect is relatively poor, so that the inner wall of the body is easy to be worn during the working process, s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F02F1/06F02F1/00C23F17/00C22C37/00C22C33/08
Inventor 谢秀岳
Owner 谢秀岳