CN202628307U

CN202628307U - Combined piston ring

Info

Publication number: CN202628307U
Application number: CN 201220305115
Authority: CN
Inventors: 高静; 袁代华; 邓金智; 斯明玉
Original assignee: Chengdu Fanxinjia Technology Co Ltd
Current assignee: Chengdu Fanxinjia Technology Co Ltd
Priority date: 2012-06-28
Filing date: 2012-06-28
Publication date: 2012-12-26
Anticipated expiration: 2022-06-28

Abstract

The utility model provides a combined piston ring, aiming to solve the phenomena of gas channeling and oil channeling in the conventional piston ring. The piston ring comprises a first piston ring and a second piston ring which are used in the same annular groove in a combined manner; clearances are arranged on the first piston ring and the second piston ring; an included angle of the clearances and the end face is 45 degrees; the thickness of the outer ring side of the first piston ring is one fifth of the inner ring side of the first piston ring; the thickness of the outer ring side of the second piston ring is five times as much as that of the inner ring side of the second piston ring; and the first piston ring and the second piston ring have equal inner circle radius and outer circle radius. The combined piston ring provided by the utility model is widely used for an air cylinder of an automobile engine.

Description

A kind of compound piston ring

Technical field

The utility model relates to a kind of piston ring, and particularly a kind of built-up piston that is installed in the car combustion engine piston is bad.

Background technique

Internal-combustion engine is as a kind of machinery powered by conventional energy, and oneself obtains promotion and application in daily life widely.Because internal-combustion engine is through making fuel (like gasoline, oil etc.) produce heat energy in the cylinder interior burning; Again this heat energy is directly converted into the motor of power and heating power; Therefore, the piston ring that is used to seal, control oil and heat transfer effect is just to the operational efficiency of internal-combustion engine and whether can critical effect be arranged stable operation.

At present, the internal-combustion engine piston ring that adopts on the market is because the needs of assembling all are made into a metal cirque with fracture.Yet in long-term using process, the fracture slit of this metal cirque can be increasing, and then can influence sealing, control oil and the heat-transfer effect of internal-combustion engine, and inner cylinder pressure is reduced, and increased gas blowby, scurries oil, and amount has a strong impact on the stable of engine performance.

The model utility content

The purpose of the utility model is to provide a kind of compound piston ring that can improve the motor sealability.

For realizing that above-mentioned purpose the utility model adopts following technological scheme:

A kind of compound piston ring; Comprise and be arranged on the first piston ring and second piston ring that combination is used in the same annular groove; Be provided with the gap on the first piston ring and second piston ring, it is characterized in that: said gap and end face angle are 45 °, and said first piston ring outer rim side thickness is 1/5th of interior ring side; The said second piston ring outer rim side thickness is 5 times of interior ring side, and its interior circle radius of the first piston ring and second piston ring, exradius all equate.

The 180 ° of settings of staggering each other of the said first piston ring and second piston ring gap.

The utlity model has following beneficial effect:

Because the utility model adopts above technological scheme, the said first piston ring and second piston ring can effectively carry out shutoff to its opened gap each other, have effectively reduced air leak amount and have scurried oil mass.

Description of drawings

Fig. 1 is the first piston loops composition of the utility model;

Fig. 2 is the second piston ring structure figure of the utility model;

Fig. 3 is the first piston ring and the second piston ring assembled state figure of the utility model.

Embodiment

Referring to Fig. 1, Fig. 2, Fig. 3, this compound piston ring; Comprise and be arranged on the first piston ring and second piston ring that combination is used in the same annular groove; Be provided with the gap on the first piston ring and second piston ring, it is characterized in that: said gap and end face angle are 45 °, and said first piston ring outer rim side thickness is 1/5th of interior ring side; The said second piston ring outer rim side thickness is 5 times of interior ring side, and its interior circle radius of the first piston ring and second piston ring, exradius all equate.The 180 ° of settings of staggering each other of the said first piston ring and second piston ring gap.

Claims

1. compound piston ring; Comprise and be arranged on the first piston ring and second piston ring that combination is used in the same annular groove; Be provided with the gap on the first piston ring and second piston ring, it is characterized in that: said gap and end face angle are 45 °, and said first piston ring outer rim side thickness is 1/5th of interior ring side; The said second piston ring outer rim side thickness is 5 times of interior ring side, and its interior circle radius of the first piston ring and second piston ring, exradius all equate.

2. a kind of compound piston ring according to claim 1, and it is characterized in that: the said first piston ring and the second piston ring gap 180 ° of settings of staggering each other.