CN201170139Y

CN201170139Y - Novel aluminium piston durable inlaid ring

Info

Publication number: CN201170139Y
Application number: CNU2008200178729U
Authority: CN
Inventors: 苏道胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-02-05
Filing date: 2008-02-05
Publication date: 2008-12-24
Anticipated expiration: 2018-02-05

Abstract

The utility model provides a novel aluminum piston abrasion proof inlay ring which belongs to an abrasion proof inlay ring for an aluminum piston. The inlay ring comprises an inlay ring body, wherein an internal cold oil duct ring is arranged on the inside of the inlay ring body, and heat dissipation grooves are arranged on the inner surface of the inlay ring body. Due to the heat dissipation grooves, the abrasion proof inlay ring enlarges the heat absorption area of cooling oil during the use of the piston, thereby improving cooling effect and reducing the temperature of a piston head. As the temperature of a first annular groove is greatly reduced, the annual groove can be effectively prevented against adhesion, and a top gas ring of the piston of a high-load engine is enabled to adopt a rectangular ring with an ideal sealing effect, thereby improving the working conditions of gas rings and oil rings, consequently reducing machine oil consumption, and improving the service performance and service life of the piston.

Description

A kind of novel aluminum piston durable inlaid ring

Technical field

The utility model provides a kind of durable inlaid ring that the aluminium piston is made that is used for.

Background technique

Piston is the vitals of motor.Along with the development of motor to high-power, low oil consumption, low noise and low emission, traditional single all-aluminium piston is difficult to meet the demands, piston first groove wear is fast, thermal fatigue cracking takes place in piston combustion bowl mouth wall under high heat load and high mechanical load effect, cause gas blowby, pull-cylinder phenomena, influence the usability and the working life of piston.At the head castingin durable inlaid ring of piston, can play the effect that improves the first annular groove wear resistance and piston-piston ring friction pair functional reliability.Have now a kind of at the inboard fixedly durable inlaid ring of inner cooling path ring of edge ring body, make finish after, can form inner cooling path at piston crown, cold oil is flowed in this passage, play the effect of reduction piston crown temperature.But it is a plane that the edge ring body on this durable inlaid ring is positioned at the face of inner cooling path ring, and heat absorption area is little, causes cooling effect relatively poor.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of novel aluminum piston durable inlaid ring, to enlarge heat absorption area, the raising cooling effect.

The utility model is achieved in that a kind of novel aluminum piston durable inlaid ring, and it has the edge ring body, and there is interior cold oil road ring edge ring body inboard, at described edge ring body internal surface the heat radiation groove is arranged.

Adopt the durable inlaid ring of said structure, because the existence of heat radiation groove is arranged, enlarged the heat absorption area of cold oil in the piston using process, thereby improved cooling effect, reduced the temperature of piston crown, because the temperature of first annular groove reduces significantly, can effectively prevent the adhesion of annular groove, make high load engine piston top compression ring can adopt the desirable rectangular ring of sealing effect, improved the operating conditions of each compression ring, oil ring, thereby reduced consumption of lubricating oil, improved the usability and the working life of piston.

Description of drawings

Fig. 1 is the schematic representation of a kind of example structure of the present utility model.

Fig. 2 is the schematic representation of another kind of example structure of the present utility model.

Fig. 3 is the schematic representation of the third example structure of the present utility model.

Fig. 4 is the schematic representation of the 4th kind of example structure of the present utility model.

Fig. 5 is the schematic representation of the 5th kind of example structure of the present utility model.

Fig. 6 is the schematic representation of the 6th kind of example structure of the present utility model.

Fig. 7 is the partial enlarged drawing after the utility model is used on the aluminium piston.

Fig. 8 is the schematic representation after the utility model is used on the aluminium piston.

Embodiment

The embodiment who provides below in conjunction with accompanying drawing further specifies concrete structure of the present utility model.

As shown in drawings, a kind of novel aluminum piston durable inlaid ring of the utility model, it has edge ring body 1, and there is interior cold oil road ring 3 edge ring body inboard, at described edge ring body 1 internal surface heat radiation groove 2 is arranged.

The cross section of inner cooling path ring is c-shaped, and the internal surface of edge ring body is the part of inner cooling path ring inner chamber.The internal surface of edge ring body is exactly the face that is positioned at the inner cooling path ring.

The heat radiation degree of depth of groove and width are principle with the intensity that not only helps dispelling the heat but also do not influence durable inlaid ring.The sectional shape of heat radiation groove can be rectangle, trapezoidal, semicircle, V-arrangement, perhaps is the combination of two or more shape in the above-mentioned shape.

Described heat radiation groove 2 has more than 1 or 1.The most frequently used is 1 or 2.A groove can increase inner cooling path inner chamber heat absorption area more than 6%.

Described edge ring body 1 is fixed by welding in interior cold oil road ring 3.

Described edge ring body 1 is cast as one with heat radiation groove 2.After finishing, casting can carry out turning processing again.

Edge ring body outer surface can be plane as shown in Figure 1 and Figure 4, also can be as Fig. 2 and shown in Figure 5 boss 4 is arranged, also can be as Fig. 3 and shown in Figure 6 fluted 5.Boss and groove can be not yet middle and amesiality, the sectional shape of boss or groove can be rectangle, trapezoidal, semicircle, V-arrangement, perhaps is the combination of two or more shape in the above-mentioned shape.

As Fig. 7, shown in Figure 8, during use, the durable inlaid ring of the utility model is positioned at the head of aluminium piston, the edge ring body constitutes first annular groove of piston, cold oil road in interior cold oil road ring constitutes, the heat radiation groove of edge ring body internal surface has effectively increased the surface area of interior cold oil road inner chamber, thereby has enlarged heat absorption area.

Claims

1, a kind of novel aluminum piston durable inlaid ring, it has edge ring body (1), and there is interior cold oil road ring (3) edge ring body inboard, it is characterized in that at described edge ring body (1) internal surface heat radiation groove (2) being arranged.

2, novel aluminum piston durable inlaid ring as claimed in claim 1 is characterized in that, described heat radiation groove (2) has more than 1 or 1.

3, novel aluminum piston durable inlaid ring as claimed in claim 1 or 2 is characterized in that, described edge ring body (1) is fixed by welding in interior cold oil road ring (3).

4, novel aluminum piston durable inlaid ring as claimed in claim 1 or 2 is characterized in that, described edge ring body (1) is cast as one with interior cold oil road ring (3).