High-adaptability scraping ring

Abstract

The invention relates to a high-adaptability scraping ring, which belongs to the technical field of piston rings. The high-adaptability scraping ring is mainly characterized in that an internal stay spring is placed into a groove formed on the inner circle of a scraping ring main body, so that the elasticity of the scraping ring is increased; after the elasticity is increased, the deformation capability of an oil scraping joint cylinder sleeve can be increased; the adaptability to the cylinder sleeve is 2-4 times that of an original scraping ring; the oil scraping capability of the scraping ring is increased, the air tightness of the scraping ring is enhanced, the adaptability of the scraping ring can be enhanced greatly and is 2-4 times that of an ordinary scraping ring, the engine oil consumption is lowered and can be lowered possibly by over 50 percent in maximum, and the air tightness of the scraping ring is enhanced, so that the air leaking amount is lowered and can be lowered by over 10 percent in maximum, and the economic efficiency of an engine is increased; simultaneously, particle emission of the engine can be reduced, and the environment is improved; and the high-adaptability scraping ring has a very good economic benefit, and is suitable for reciprocating piston type diesel engine piston rings, reciprocating piston type air compressor piston rings and reciprocating piston ring type brake pump piston rings of which the air cylinder diameters are smaller than or equal to 200 millimeters.

Description

technical field [0001] The invention relates to a scraping ring with high compliance, which belongs to the technical field of piston rings. Background technique [0002] The main function of the scraper ring is not only to distribute oil when the piston goes up and to scrape oil when the piston goes down, but also to assist the first air ring to seal. With the continuous upgrading of national emission regulations, it is required to consider high power performance and low oil consumption in the engine design process. Therefore, the power per liter, torque per liter and burst pressure of the engine are constantly increasing, and the deformation of the cylinder bore is increasing. The ability of the oil ring to conform to the deformation of the cylinder bore is insufficient, and the oil scraping ability and sealing performance are reduced, resulting in an increase in oil consumption and air leakage. Contents of the invention [0003] The purpose of the present invention is t...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a scraper ring with high compliance, which solves the defects that the existing oil scraper ring has insufficient ability to conform to the deformation of the cylinder bore, and the oil scraping ability and sealing performance decrease, resulting in increased oil consumption and air leakage. Reduced air leakage and reduced engine oil consumption are achieved by the invention, so that the emission of particulate matter is reduced

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