Oil ring of piston ring set of internal combustion engine

A technology for piston rings and internal combustion engines, applied to piston rings, mechanical equipment, engine components, etc., can solve the problems of poor oil scraping performance, achieve the effects of preventing oil leakage, good specific pressure distribution uniformity, and reducing oil consumption

Inactive Publication Date: 2014-12-17
仪征威龙发动机零部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a piston ring group oil ring with good oil scraping effect of the diesel engine, and to overcome the problems of the traditional diesel engine piston ring group oil ring and the piston groove with a certain side clearance and poor oil scraping performance. defect

Method used

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  • Oil ring of piston ring set of internal combustion engine
  • Oil ring of piston ring set of internal combustion engine
  • Oil ring of piston ring set of internal combustion engine

Examples

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Embodiment Construction

[0013] like figure 1 , 2 As shown, the present invention consists of an upper scraper ring 1 with an opening 1-1, a lower scraper ring 2 with an opening 2-1, and a wave-shaped support spring 3.

[0014] The upper oil scraper ring 1 and the lower oil scraper ring 2 made of alloy cast iron have the same height, and the upper oil scraper ring 1 or the lower oil scraper ring 2 accounts for 1 / 2 of the total height of the piston ring group oil ring.

[0015] The upper oil scraper ring 1 and the lower oil scraper ring 2 are stacked relative to each other, and the openings of the upper oil scraper ring 1 and the lower oil scraper ring 2 are staggered by 60° to 120°, and in this example, they are staggered by 90°. A wave-shaped support spring 3 is arranged on the inner circular surfaces of the two scraper rings 1 and 2 .

[0016] like figure 2 , 3 , 4, eight upper oil discharge grooves 1-2 are evenly distributed in the circumferential direction of the upper oil scraper ring 1, and...

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Abstract

The invention provides an oil ring of a piston ring set of an internal combustion engine, and relates to the technical field of a structure of a combined oil ring of a piston ring set of a diesel engine. The oil ring comprises an upper oil scraper ring and a lower oil scraper ring, wherein the upper oil scraper ring is provided with an opening, the lower oil scraper ring is provided with an opening, and the upper oil scraper ring and the lower oil scraper ring are mutually overlapped. The oil ring is characterized in that the openings of the upper oil scraper ring and the lower oil scraper ring are staggered by 60-120 degrees, the circumference of the upper oil scraper ring is uniformly provided with 6-12 oil drain grooves, the circumference of the lower oil scraper ring is uniformly provided with 6-12 oil drain grooves, the oil drain grooves of the upper oil scraper ring and the oil drain grooves of the oil drain grooves of the lower oil scraper ring are the same in number, correspond with each other one by one, and are also oppositely arranged to form oil drain holes, and the inner circular surfaces of the oil scraper rings are provided with a wavy support spring. The oil ring has the advantages that the defect of poor oil scraping property and certain side gap between an oil ring and a piston groove of the traditional oil piston assembly of the diesel engine are overcome, and the condition of oil mixing of the engine during idling is effectively prevented.

Description

technical field [0001] The invention relates to the technical field of a piston ring structure, in particular to a combined oil ring in a diesel engine piston ring set. Background technique [0002] Piston ring is one of the key parts of internal combustion engine. With the development of modern automobile industry, the engine has higher and higher requirements in terms of emission, fuel consumption and service life. Traditional diesel engine piston ring oil rings usually use spiral spring oil rings (spring and ring body combination), there is a certain side clearance between the piston ring and the piston groove, and the side clearance increases with the wear of the outer circle of the piston ring, resulting in oil leakage , especially heavy-duty diesel engine oil channeling phenomenon is more serious when the engine is idling. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a piston rin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F5/00
Inventor 陈文明孙康和铁守荣谢锦田
Owner 仪征威龙发动机零部件有限公司
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