CN203809137U - Cylinder sleeve with carbon-proof protection sleeve and for engine - Google Patents

Cylinder sleeve with carbon-proof protection sleeve and for engine Download PDF

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Publication number
CN203809137U
CN203809137U CN201420134284.9U CN201420134284U CN203809137U CN 203809137 U CN203809137 U CN 203809137U CN 201420134284 U CN201420134284 U CN 201420134284U CN 203809137 U CN203809137 U CN 203809137U
Authority
CN
China
Prior art keywords
carbon
carbon sheath
sleeve
cylinder liner
sheath
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN201420134284.9U
Other languages
Chinese (zh)
Inventor
徐志富
臧权同
王克宇
徐帅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yangzhou Huatie Railway fittings Co Ltd
Original Assignee
Yangzhou Huatie Railway fittings Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yangzhou Huatie Railway fittings Co Ltd filed Critical Yangzhou Huatie Railway fittings Co Ltd
Priority to CN201420134284.9U priority Critical patent/CN203809137U/en
Application granted granted Critical
Publication of CN203809137U publication Critical patent/CN203809137U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

A cylinder sleeve with a carbon-proof protection sleeve and for an engine relates to the technical field of production of cylinder sleeves of engines. The cylinder sleeve is composed of a sleeve body and the carbon-proof protection sleeve, and the carbon-proof protection sleeve made of an abrasion-resistant cast iron material is connected onto the upper portion of the sleeve body through a taper recessed platform. The carbon-proof protection sleeve can be utilized to prevent deposited carbon in a combustion chamber from falling into a gap between a piston and a piston ring, abrasive materials between the piston, the cylinder sleeve and the piston ring are greatly reduced, and abrasion of the cylinder sleeve body and the piston ring can be reduced. The abrasion resistance of the cylinder sleeve body and the piston ring is improved, a large amount of raw materials are saved, resource and energy are saved, and the environment protection quality is improved on the whole.

Description

Cylinder liner with anti-carbon sheath for motor
Technical field
The utility model relates to the production technical field of the cylinder liner of motor.
Background technique
In the prior art, the cylinder liner of motor is normally formed by overall cylinder liner.In internal-combustion engine industry, mill cylinder (particularly cylinder liner end mill) is an outstanding generally acknowledged problem, and it finally will cause oil consumption excessive (energy waste) and shorten the life-span of motor.
No matter be that overall interior surface of cylinder liner is taked to chromium plating, laser hardening, nitrocarburizing, the measures such as plateau honing cross hatches, or in material, add boron element, P elements, chromium, molybdenum, copper, nickel, titanium alloy etc., thereby form various hard phases and (contain boron compound, steadite, titanium eutectic ...) are all the wear resistancies in order to improve cylinder liner.The former is for improving interior surface of cylinder liner wear resistance, not only pay expensive cost, and case hardening is only at 0.01-0.03mm, some chromium coating and nitrocarburizing layer also exist makes a concerted effort inadequate or inhomogeneous with bulk junction, and cause peeling off, nitrocarburizing is made up of chemical combination layer (tapetum and nitride layer, white layer), its thickness is 0.012-0.030 millimeter, tapetum accounts for 60%-90%, nitride layer, white layer accounts for 40%-10%, and this tissue is very fragile, therefore be easy to cracked in grinding process, produce on the contrary abrasive particle, expanded abrasive wear.The latter increases various elements in material, some or rare metal, thus cause the waste of resource.Therefore, domestic and international internal-combustion engine expert and manufacturer are all still at the more suitable high-abrasive material of seeking to manufacture cylinder liner.The important meaning of this product research is except improving the quality of products, also fill up the blank of domestic and international cylinder liner technology, the cylinder liner of employing with anti-carbon sheath, can stop that the carbon distribution in firing chamber falls into the space between piston and piston ring by anti-carbon sheath, greatly reduce thus the abrasive material between piston, cylinder liner and piston ring, obviously, can reduce the wearing and tearing of cylinder liner body and piston ring.So not only increased the rub proofness of cylinder liner body and piston ring, main is to have saved a large amount of raw material, has saved resource and the energy, has improved on the whole environmental protection quality.
Model utility content
The utility model object is to design a kind of cylinder liner with anti-carbon sheath that can overcome prior art defect.
The utility model feature is: be made up of body and anti-carbon sheath, connect an anti-carbon sheath of being made up of wear-resistant cast iron material on body top by tapering concave station.
This cylinder liner with anti-carbon sheath, can stop that the carbon distribution in firing chamber falls into the space between piston and piston ring by anti-carbon sheath, greatly reduces thus the abrasive material between piston, cylinder liner and piston ring, can reduce the wearing and tearing of cylinder liner body and piston ring.So not only increased the rub proofness of cylinder liner body and piston ring, main is to have saved a large amount of raw material, has saved resource and the energy, has improved on the whole environmental protection quality.
Further, the utility model is provided with a concave step more than the position of body top first piston ring, the internal surface of described concave step is the conical ring bodily form, described anti-carbon jacket outer surface is provided with the conical ring external surface cooperatively interacting with the internal surface of described concave step, and described anti-carbon sheath is bumped in the concave step of described body.
Adopt above design, can realize between anti-carbon sheath and body and form axial and circumferential location, connect more stable, reliable.
More reliable scheme is: the tapering of the conical ring bodily form of described concave step is 3~7 °.
Thickness bottom of described anti-carbon sheath and anti-carbon the sheath bottom Thickness Ratio of the described body in outside are 0.25~0.27 ︰ 1.If the minimum thickness of anti-carbon sheath is too large, the strength and stiffness of body present deficiency; If the minimum thickness of anti-carbon sheath is too little, the strength and stiffness of anti-carbon sheath also can produce the impact of weak tendency.
The total height ratio with anti-carbon sheath cylinder liner that motor after described anti-carbon sheath height forms with described body and anti-carbon sheath is used is 5~7 ︰ 100.Secondly first first anti-carbon sheath height depends on the position of body top first piston ring, and anti-carbon sheath height can not be lower than 5 ︰ 100 of the total height of cylinder liner, because now the unnecessary gap of piston and first piston interannular increases, can cause anti-carbon effect to reduce.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1, the utility model is made up of body 1 and an anti-carbon sheath 2 of being made up of wear-resistant cast iron material.
More than the position of the position of body 1 top first piston ring, be provided with a concave step 11, the internal surface of concave step 11 is the conical ring bodily form, the angle between two buses of this conical ring bodily form shaft section be 1 ° 30 '-3 ° 30 ' (in this illustration C angle be 2 ° 30 ').
Anti-carbon sheath 2 outer surfaces are provided with the conical ring external surface identical with the internal surface of above concave step 11, the angle (being cone angle) between two buses of this conical ring bodily form shaft section be 3~7 ° (in this illustration C angle be 2 ° 30 ', C angle=cone angle/2).
Anti-carbon sheath 2 is bumped in the concave step of body 1, and after assembling, the upper end of anti-carbon sheath 2 is a little more than the upper-end surface of body 1.
Thickness bottom of anti-carbon sheath 2 and anti-carbon the sheath 2 bottom Thickness Ratio herein of body 1 in outside are 0.25~0.27 ︰ 1.
The height A of anti-carbon sheath 1 and the total height B(with anti-carbon sheath cylinder liner that uses of assembling rear engine be: the total height with anti-carbon sheath cylinder liner that the motor after body 1 and anti-carbon sheath 2 compositions is used) ratio be 5~7 ︰ 100.

Claims (4)

1. what motor was used is with anti-carbon sheath cylinder liner, is made up of body and anti-carbon sheath, connects an anti-carbon sheath of being made up of wear-resistant cast iron material on body top by tapering concave station; It is characterized in that being provided with a concave step more than the position of body top first piston ring, the internal surface of described concave step is the conical ring bodily form, described anti-carbon jacket outer surface is provided with the conical ring external surface cooperatively interacting with the internal surface of described concave step, and described anti-carbon sheath is bumped in the concave step of described body.
According to claim 1 motor use be with anti-carbon sheath cylinder liner, the tapering that it is characterized in that the conical ring bodily form of described concave step is 3~7 °.
3. that uses according to motor described in claim 1 or 2 is with anti-carbon sheath cylinder liner, it is characterized in that thickness bottom of described anti-carbon sheath and anti-carbon sheath bottom the Thickness Ratio of the described body in outside be 0.25~0.27 ︰ 1.
According to claim 1 motor use be with anti-carbon sheath cylinder liner, it is characterized in that the total height ratio with anti-carbon sheath cylinder liner that the motor after described anti-carbon sheath height and described body and anti-carbon sheath composition is used is 5~7 ︰ 100.
CN201420134284.9U 2014-03-25 2014-03-25 Cylinder sleeve with carbon-proof protection sleeve and for engine Expired - Lifetime CN203809137U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420134284.9U CN203809137U (en) 2014-03-25 2014-03-25 Cylinder sleeve with carbon-proof protection sleeve and for engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420134284.9U CN203809137U (en) 2014-03-25 2014-03-25 Cylinder sleeve with carbon-proof protection sleeve and for engine

Publications (1)

Publication Number Publication Date
CN203809137U true CN203809137U (en) 2014-09-03

Family

ID=51447903

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420134284.9U Expired - Lifetime CN203809137U (en) 2014-03-25 2014-03-25 Cylinder sleeve with carbon-proof protection sleeve and for engine

Country Status (1)

Country Link
CN (1) CN203809137U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108699967A (en) * 2016-03-04 2018-10-23 瓦锡兰芬兰有限公司 Cylinder jacket and wear ring

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108699967A (en) * 2016-03-04 2018-10-23 瓦锡兰芬兰有限公司 Cylinder jacket and wear ring
CN108699967B (en) * 2016-03-04 2023-04-25 瓦锡兰芬兰有限公司 Piston engine

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CX01 Expiry of patent term

Granted publication date: 20140903

CX01 Expiry of patent term