CN2375772Y

CN2375772Y - Combined sealed piston ring

Info

Publication number: CN2375772Y
Application number: CN 99214152
Authority: CN
Inventors: 曹相宾; 高剑锋
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-10
Filing date: 1999-06-10
Publication date: 2000-04-26
Anticipated expiration: 2009-06-10

Abstract

The utility model relates to a combined sealed piston ring which is composed of a main ring (1) and an auxiliary ring (2). The utility model is characterized in that an opening (3) and a step (5) are arranged on the main ring (1), an opening (4) is arranged on the auxiliary ring (2) which is sheathed on the step (5) of the main ring (1), and the opening (3) of the main ring (1) and the opening (4) of the auxiliary ring (2) are mutually misplaced. The utility model has the advantages of novel design, simple structure, reasonable combination, strong sealing performance, long service life and energy conservation. Consumption of fuel and environmental pollution are decreased, service life of an engine is prolonged, operating maintenance cost is reduced, and phenomena of air leakage and oil pumping caused by poor enclosing performance of a piston ring are overcome.

Description

Combination seal formula piston ring

The utility model relates to a kind of combination seal formula piston ring, relates to a kind of inner loop that is set with outside main ring specifically, and two ring openings interlace the piston ring of good seal performance.

At present, the open type piston ring that in the Reciprocating engine cylinder, uses, because its structural reason, the gap that is the opening of open type piston ring does not have any stopping, so by piston ring end gap clearance and ring bank cylinder prepareding gap, ubiquity constitutes to crankcase blow-by, " section of living " to the piston head lubricating oil carry-over, the area of this " section of living " is accompanied by the increase of wearing and tearing in the motor using process and increases, its air leakage and oil consumption are aggravated thereupon, cause the engine pressure deficiency, power descends, and fuel consumption increases, and exhaust pollution is serious etc.Cause the mechanical part premature wear simultaneously and increased operating cost, reduce the working life of motor.In a word, available engine is poor because of the piston ring closed performance, and causes " oil is scurried in gas leakage " to await improving.

The purpose of this utility model just is to design a kind of inner loop that is set with, combination seal formula piston ring that two ring openings interlace outside main ring.

The purpose of this utility model is achieved in that it is made up of main ring (1) and inner loop (2), it is characterized in that: main ring (1) is provided with opening (3) and step (5), inner loop (2) is provided with opening (4), inner loop (2) is sleeved on the step (5) of main ring (1), and the opening (3) of main ring (1) and the opening (4) of inner loop (2) misplace mutually.

The utility model is compared with prior art: its modern design, and simple in structure, combination is rationally, sealability is strong, long service life has shortened the break-in cycle, can reduce the pressure of motor, improve power, energy saving reduces the consumption and the environmental pollution of fuel, prolongs the working life of motor, reduce the operating maintenance expense, overcome the phenomenon that oil is scurried in the gas leakage that causes because of piston ring closed performance difference.

Below in conjunction with drawings and Examples the utility model is further specified:

Accompanying drawing 1 is the utility model overall structure schematic representation.

Accompanying drawing 2 is the overall structure schematic representation of parts main ring.

Accompanying drawing 3 is the overall structure schematic representation of parts inner loop.

Among the figure: 1, main ring, 2, inner loop, 3, opening, 4, opening, 5, step.

As can be seen from the figure, it is made up of the utility model main ring 1, inner loop 2, and main ring 1 is provided with opening 3 and step 5, forms an opening stepped shaft cylinder ring; Inner loop 2 is provided with opening 4, the section of inner loop 2 is square or rectangular, match with the step 5 that main ring 1 is provided with, inner loop 2 is sleeved on the step 5 of main ring 1, be drive fit, section configuration of the present utility model is rectangle or square behind the suit, and the opening 3 of main ring 1 misplaces mutually with the opening 4 of inner loop 2, and purpose is to overcome piston ring (opening) closed performance difference and the gas leakage or the gas-blowing phenomenon that cause.

Claims

1, a kind of combination seal formula piston ring, it is made up of main ring (1) and inner loop (2), it is characterized in that: main ring (1) is provided with opening (3) and step (5), inner loop (2) is provided with opening (4), inner loop (2) is sleeved on the step (5) of main ring (1), and the opening (3) of main ring (1) and the opening (4) of inner loop (2) misplace mutually.