CN202596909U

CN202596909U - Engine piston

Info

Publication number: CN202596909U
Application number: CN 201120579190
Authority: CN
Inventors: 任飞; 黄德斌
Original assignee: Mianyang Xinchen Power Machinery Co Ltd
Current assignee: Mianyang Xinchen Power Machinery Co Ltd
Priority date: 2011-12-31
Filing date: 2011-12-31
Publication date: 2012-12-12
Anticipated expiration: 2021-12-31

Abstract

Provided is an engine piston, which comprises a swirl combustion chamber, a cooling oil path, a piston junk and a piston provided with a first ring groove. The engine piston is characterized in that: a cast iron ring is lined in the first ring groove of the piston; the piston junk is provided with one or two carbon deposition grooves; and the top edge of the piston is in an arc shape. With the application of the engine piston, high temperature resistance performance and wear resistant performance of the piston can be improved, the capacity of resisting external severe conditions of the piston is improved, the probability of cylinder scoring is reduced, reliability and economy of an engine are improved, and discharge level is improved; and the engine piston is mainly used for assorted power of light-weight off-road vehicles, light-weight passenger cars, light-weight lorries and light-weight station wagons, meets requirements of Europe III and Europe discharge standards for low-pollution and low-fuel-consumption diesel engines, etc.

Description

A kind of piston of engine

Technical field

The utility model belongs to piston, relates to a kind of piston of engine, is the improvement of existing technology.Be specially adapted at a high speed, the piston of turbulence chamber, the low pollution of satisfying the above emission standard of Europe III, low fuel oil consumption, low noise diesel machine adopts.

Background technique

Along with the highway in China transportation is hanged down the pollutionization development towards high speed, economic, comfortable reaching; And the deflation day by day of national energy policy; For satisfying the fuel limit rules of all kinds of light buses, light duty cross-country car, light-duty notchback, light truck; Economy to motor is had higher requirement, and realize that these requirements will carry out architecture advances by this type of countercylinder body important spare part, to satisfy the engine performance requirement.

Summary of the invention

The purpose of the utility model is intended to overcome deficiency of the prior art, and a kind of piston of engine simple in structure, well behaved is provided.Adopt in the piston that be specially adapted to high speed, turbine firing chamber, satisfy the low pollution of Europe III emission standard, low fuel oil consumes petrol engine.

The content of the utility model is: a kind of piston of engine; Comprise: the piston that turbulence chamber, cooling oil duct, firepower bank is arranged and be provided with first annular groove; It is characterized in that: stud with cast iron ring (7) in first annular groove (1) of said piston, on the firepower bank (2) of said piston 1-2 carbon distribution groove (3) arranged.

In the content of the utility model: the edge at the top of said piston is circular arc (4), and promptly the edge at the top of piston is that fillet is handled.

Said piston main body is preferably for adopting aluminum alloy material (alloy cast aluminium) manufacturing, and carbon distribution groove (3) is carried out anodizing with the piston on top.

Compared with prior art, the utlity model has following characteristics and beneficial effect:

(1) adopts the utility model; In first annular groove of piston, stud with the cast iron ring, the firepower of said piston is provided with the carbon distribution groove on the bank, can guarantee the resistance to heat of piston; Alleviate top piston ring to wearing for piston; Improve the reliability of piston and the adaptability of bad working environments greatly, reduce the scuffing of cylinder bore probability, improve the Economy and the reliability of motor;

(2) processing mode is ripe; Processing cost is low; Make easily, easy to use, be mainly used in the mating power of light duty cross-country car, light bus, light truck and light-duty notchback; Can satisfy the needs of the low pollution of Europe III emission standard, low fuel oil consumption petrol engine etc., practical.

Description of drawings

Fig. 1 is the utility model embodiment 1 perspective view;

Fig. 2 is the utility model embodiment 1 structural representation;

Fig. 3 is the structure for amplifying schematic representation of I part among Fig. 2.

Among the figure: 1-first annular groove, 2-firepower bank, 3-carbon distribution groove, 4-circular arc, 5-turbulence chamber, 6-cooling oil duct, 7-cast iron ring.

Embodiment

The utility model is described further through embodiment below in conjunction with accompanying drawing.

Embodiment 1: referring to each accompanying drawing.

A kind of piston of engine comprises: the piston that turbulence chamber 5, cooling oil duct 6, firepower bank 2 is arranged and be provided with first annular groove 1; Stud with cast iron ring 7 in first annular groove 1 of said piston, 2 carbon distribution grooves 3 are arranged on the firepower bank 2 of said piston; The edge at the top of said piston is a circular arc 4, and promptly the edge at the top of piston is that fillet is handled.

This piston main body hydromining is preferably made with aluminum alloy material (alloy cast aluminium), and carbon distribution groove 3 is carried out anodizing with the piston on top.

This embodiment's piston piston junk partly increases twice carbon distribution groove, through the control to the carbon distribution groove, makes the carbon distribution groove as the spacing position of the technology of top anode oxidation; The part of synchronous firepower bank of modified piston and piston head handing-over makes its round-corner transition, has avoided the generation of piston head local superheating like this, also piston head anodic oxidation quality is provided safeguard.

Adopt the diesel engine of the piston after the utility model improves; Emission performance reaches the EUR0III rules; Satisfy GB18352.3-2005 " light-duty vehicle pollutant emission limit and method of testing (the III) " mandatory standard that country is about to enforcement, satisfy the local emission standard in DB11/105-1998 and DB11/044-1999 Beijing simultaneously.

The utility model is not limited to the foregoing description, and the utility model content is said all can implement and have said good result.

Claims

1. piston of engine; Comprise: the piston that turbulence chamber, cooling oil duct, firepower bank is arranged and be provided with first annular groove; It is characterized in that: stud with cast iron ring (7) in first annular groove (1) of said piston, on the firepower bank (2) of said piston 1-2 carbon distribution groove (3) arranged.

2. by the described piston of engine of claim 1, it is characterized in that: the edge at the top of said piston is circular arc (4).