CN202732139U

CN202732139U - Automobile engine piston oil ring

Info

Publication number: CN202732139U
Application number: CN 201220316417
Authority: CN
Inventors: 林传信
Original assignee: MASTER PARTS SUPPLY (ZHEJIANG) CO Ltd
Current assignee: MASTER PARTS SUPPLY (ZHEJIANG) CO Ltd
Priority date: 2012-07-03
Filing date: 2012-07-03
Publication date: 2013-02-13
Anticipated expiration: 2022-07-03

Abstract

The utility model relates to an automobile engine piston oil ring, comprising a ring body, wherein a nitride layer is formed on the surface of the ring body; an oil scraping hole is formed at the middle of the ring body; the piston oil ring is integrally nitrided so that the performance of the piston oil ring can be improved; the nitride layer can be formed on the outer surface of the piston oil ring nitrided previously; and the nitride layer is capable of improving the hardness of the engine piston oil ring, thereby reducing abrasion and damage of the engine piston oil ring in the use process; moreover, the automobile engine piston oil ring is made of steel and omits the chromium plating process, thereby reducing pollution and improving the quality of products.

Description

A kind of piston of automobile engine oil ring

Technical field

The utility model relates to a kind of piston ring, relates in particular to a kind of piston of automobile engine oil ring.

Background technique

Piston ring is generally made by cast iron, and certain elasticity is arranged, and there is various shape in the cross section, and there is coating on the surface to increase running-in characteristic.Piston can expanded by heating when engine running, so piston ring has opened gap, in order to keep sealing, be staggered in the opened gap position of each piston ring during installation.A piston often has three to four piston rings, and they are divided into compression ring and oil ring two large classes according to the difference of effect.Compression ring is contained in the annular groove of piston crown upper end, is used for preventing gas leakage, and the heat of piston crown is delivered to cylinder wall, evacuates the heat of piston.The effect of oil ring is to prevent that lubricant oil from scurrying into the firing chamber, lubricant oil excessive on the cylinder wall is scraped got back to oil sump, and it is installed in the below annular groove of compression ring.As long as guarantee the requirement of sealing function, much better the piston ring number is few than number, the piston ring number had both kept minimum friction area less, reduce power loss, shortened again the height of piston, the corresponding height that has also just reduced motor, the high speed petrol engine generally is that the twice compression ring is with oil ring at present.

But the processing of cast iron oil ring is loaded down with trivial details, and Performance Ratio is relatively poor, and the in use easily wearing and tearing of traditional cast iron oil ring.

Be in the model utility of 03272486.1 1 kinds of oil piston rings at application number, this oil piston ring can have preferably frizing, oil return ability, can reduce the engine oil consumption of motor, improve the working life of motor, but also exist defective, this oil piston ring is the cast iron casting oil ring, and it is loaded down with trivial details that its procedure can compare.

Summary of the invention

For problems such as the easy wearing and tearing of conventional piston oil ring, provide a kind of steel piston oil ring.

In order to solve technique scheme, the utility model is solved by following technical proposals:

A kind of piston of automobile engine oil ring comprises ring body, is provided with in the ring body and scrapes oilhole, and ring body surface is provided with nitride layer.Nitride layer can improve the wear resistance of ring side, improves the hardness of piston ring of automobile engine, reduces its deterioration in use.

As preferably, described nitride layer thickness is 0.05mm-0.3mm.

As preferably, described piston of automobile engine oil ring adopts steel material, replaces traditional cast iron oil ring, does not need chromium plating, has reduced procedure and pollution, improves the quality of products.

The utility model adopts technique scheme, has significant technique effect: the utility model adopts steel material to substitute traditional cast iron materials, can remove the necessary chromium plating program of cast iron oil ring, has reduced pollution, has improved quality of product; Carry out nitriding treatment by integral body, outer surface at oil piston ring forms nitride layer, can improve the hardness of piston of automobile engine oil ring, reduces its deterioration in use, nitride layer can also improve the wear resistance of ring side, the working life of having strengthened oil piston ring.

Description of drawings

Fig. 1 is the utility model embodiment 1 structural representation;

Fig. 2 is the left view of Fig. 1;

The toponym that each number designation refers in the above accompanying drawing is as follows: 1-ring body, 2-nitride layer, 3-scrape oilhole wherein.

Embodiment

Below in conjunction with figure and embodiment the utility model is further elaborated:

Embodiment 1

The utility model comprises ring body 1, is provided with in the ring body to scrape oilhole 3, and ring body 1 surface is provided with nitride layer 2.The thickness of nitride layer 2 is 0.05mm-0.3mm.The utility model adopts steel material, with traditional cast iron oil ring relatively, has removed the chrome-plated process program, has reduced pollution, has improved quality of product.

Oil piston ring integral body is carried out nitriding treatment, and at the outer surface formation nitride layer of oil piston ring, nitride layer can improve the hardness of oil piston ring, reduces its deterioration in use, has greatly increased the working life of oil piston ring.

Technical requirements of the present utility model is:

1. material: Ma Shi alms bowl stainless steel.

2. tangential elastic force: measured value 46.4

20%N.

3. metallographic structure is carried out by JB/T6290-92 requirement.

4. other require to press the execution of GB/T1149.14 regulation.

5. surface treatment comprises: nitrogenize, inside groove sandblast, water jacket polishing.

In a word, the above only is preferred embodiment of the present utility model, and all equalizations of doing according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.

Claims

1. a piston of automobile engine oil ring comprises ring body (1), is provided with in the ring body (1) and scrapes oilhole (3), it is characterized in that, described ring body (1) surface is provided with nitride layer (2).

2. a kind of piston of automobile engine oil ring according to claim 1 is characterized in that, described nitride layer (2) thickness is 0.05mm-0.3mm.