CN2603246Y

CN2603246Y - Piston ring

Info

Publication number: CN2603246Y
Application number: CN 03223029
Authority: CN
Inventors: 伍天星
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-14
Filing date: 2003-01-14
Publication date: 2004-02-11
Anticipated expiration: 2013-01-14

Abstract

A piston ring is provided. The utility model is characterized in that a convex stage is positioned at one side of a fracture surface of a piston ring outside of a piston groove in the piston, while a concave stage is positioned at the other side opposite to the convex stage. Compared with the existing technology, the utility model has the advantage of extending the leakage time of the compressed gas from the piston ring fracture surface, so as to improve the output power of the generator.

Description

A kind of piston ring

Technical field:

The utility model relates to a kind of engine fittings, particularly a kind of piston ring.

Background technique:

The existing piston ring is one to have the ring of fracture, the fracture of ring is a plane, during use, ring set is connected on the piston ring groove on the piston outer wall, the piston that will have piston ring is then filled in the cylinder of motor, utilize the open elastic force of piston ring self, piston ring is abutted against on the engine cylinder inwall, like this, the sealability of piston ring just depends on the gap of cylinder inner carrier ring fracture, but owing to be subjected to the restriction of engine operation environment and the material of piston ring own, the piston ring fracture must leave certain clearance, avoiding because of the high temperature in the engine working process causes the piston ring thermal expansion, make the external diameter of the piston ring after the expansion stuck in cylinder greater than cylinder bore, make the motor cisco unity malfunction, but excesssive gap, the pressurized gas physical efficiency is revealed from the piston ring fracture rapidly, influenced the raising of the compression ratio of motor, thereby influence engine output power.

Summary of the invention:

Goal of the invention of the present utility model is to provide a kind of can reveal the time from the piston ring fracture with prolonging pressurized gas, to improve the piston ring of engine output power.

The utility model is achieved in that it mainly is the step that a side that a side at the fracture of piston ring is being positioned at the fracture of the piston ring outside the piston ring groove of piston at least is provided with protrusion, and the opposite side of the corresponding step that protrudes is provided with the step of depression.During use, the step that protrudes on the piston ring fracture is embedded on the step of opposite side depression, piston ring groove with piston, with the block of piston ring fracture, thereby lowered the speed that pressurized gas is revealed from fracture significantly, improve the compression ratio of motor, thereby improved the outputting power of motor.

Compared with the prior art the utility model has the prolongation pressurized gas is revealed the time from the piston ring fracture, to improve the advantage of engine output power.

Fig. 1 is the structural representation of prior art piston ring fracture;

Fig. 2 is the structural representation of the utility model embodiment 1 piston ring fracture;

Fig. 3 is the structural representation of the utility model embodiment 2 piston ring fractures;

Fig. 4 is the structural representation of the utility model embodiment 3 piston ring fractures.

Embodiment:

Now in conjunction with the accompanying drawings and embodiments the utility model is described in further detail:

Embodiment 1: as shown in Figure 2, the utility model mainly is the step 3 that a side 2 of the fracture of the piston ring outside being positioned at the piston ring groove 1 of piston is provided with protrusion, and the opposite side 4 of the corresponding step 3 that protrudes is provided with the step 5 of depression.

Embodiment 2: as shown in Figure 3, the utility model mainly is the step 3 that a side 2 of the fracture of piston ring is provided with the protrusion of skew back, and the opposite side 4 of the corresponding step 3 that protrudes is provided with the step 5 of skew back of the depression of skew back.

Embodiment 3: as shown in Figure 4, the utility model mainly is the step 5 that the side 4 that is positioned at the fracture of the outer piston ring of the piston ring groove 1 of piston is provided with protrusion, and the opposite side 2 of the corresponding step 5 that protrudes is provided with the step 5 of depression.

Claims

1, a kind of piston ring is characterized in that it mainly being the step that a side that a side at the fracture of piston ring is being positioned at the fracture of the piston ring outside the piston ring groove of piston at least is provided with protrusion, and the opposite side of the corresponding step that protrudes is provided with the step of depression.