Automobile engine piston ring capable of reducing exhaust emission

Abstract

The invention relates to an automobile engine piston ring capable of reducing exhaust emission. The automobile engine piston ring comprises a ring body, a first joint and a second joint are arranged on the ring body, the first joint is provided with a first connection toothed bar and a second connection toothed bar which extend outwards, and the second joint is provided with a third connection toothed bar and a fourth connection toothed bar; mutually matched wedge-shaped structures are arranged on the lower side of the first connection toothed bar and the upper side of the third connection toothed bar, mutually matched wedge-shaped structures are arranged on the upper side of the second connection toothed bar and the lower side of the fourth connection toothed bar, and the ring body only can do contraction motion under the action of the wedge-shaped structures. A gap is formed between the third connection toothed bar and the fourth connection toothed bar, springs are arranged in the gap, and the third connection toothed bar and the fourth connection toothed bar are tightly attached to the side wall of a clamping groove of a piston. The air tightness in the radial direction of the piston and in the axial direction of the piston, of the joints of the piston ring can be ensured, the blow-by phenomena at the joints are completely eradicated, the engine ignition speed is increased, a fuel combusts more completely, the momentum output efficiency is higher, and the effects of energy conservation and environment protection are achieved.

Description

Technical field [0001] The invention relates to the field of auto parts, in particular to an automobile engine piston ring for reducing exhaust emissions. Background technique [0002] The seal between the piston ring and the piston is very important, which directly affects the ignition speed of the engine, whether the fuel is burned completely, and the output power. When the engine is working, the interface of the piston ring is generally a place that is likely to cause up and down blow-by. At present, there are many improvements to the piston ring interface, but the above-mentioned blow-by problem is still not well solved. Summary of the invention [0003] In summary, in order to overcome the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide an automobile engine piston ring that reduces exhaust emissions. [0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: an...

AI Technical Summary

Problems solved by technology

During the working process of the engine, the interface of the piston ring is generally a place where it is easier to cause up and down air blow-by. At present, there are many improvements to the interface of the piston ring, but the above-mentioned blow-by air problem still cannot be solved well.

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