CN2606823Y - Guard sheet sealed type piston ring - Google Patents

Abstract

A guard sheet sealed type piston ring is provided, which is a piston ring used on internal combustion engine. An upper semi-crescent groove and a lower semi-crescent groove are arranged on the sides at two ends of the piston ring opening, and crescent guard sheets are arranged in the upper and lower grooves. Due to the existence of the crescent guard sheets, the piston ring is made to form a sealed type. The combination of the guard sheets and the piston ring grooves is arranged at the opening at the radial elasticity distributed tail end of the piston ring, thereby, the radial elasticity of the piston ring cannot be attenuated, and the uniformity of the tangential elasticity of the piston ring is simultaneously ensured. The piston ring effectively resists the attenuation of the radial elasticity, and is good in sealing performance, low in cost, convenient to be installed and used.

Description

The washer sealed ring

Technical field

The utility model relates to a kind of washer sealed ring that uses on the internal-combustion engine.

Technical background

At present, the combined type that is formed by stacking by major and minor ring of reciprocating internal combustion engine use seals piston ring.In course of working, the main ring cross section is processed into "T"-shaped or " L " shape by original rectangle, the radical elasticity of piston ring is weakened.Simultaneously, in the process of piston ring motion, because the existence of frictional force between the associative ring makes this radical elasticity decay become very serious.Also have a kind of fibulae type seal mouth ring, it is taken notch portion and processes on the piston ring substance.Because piston ring substance material fragility is bigger, install and work in easily make and take notch portion and phenomenon of rupture occurs, cause the wearing and tearing of piston ring sideshake to increase, easily form and reveal the gap.

Summary of the invention

The utility model purpose provides a kind of washer sealed ring, resists the radical elasticity decay of piston ring effectively, good seal performance, and cost is low, is convenient to install and use.

The purpose of this utility model is achieved in that

A kind of catch sealed ring, it is characterized in that on the side, two ends of gap-clearance of piston rings place, being provided with thread form and second meniscate groove in first half of the month, meniscate catch is arranged in upper and lower recessed being pickled with grains or in wine, the inside and outside circular arc line of catch is consistent with the upper and lower recessed poor inside and outside circular arc line of piston ring, catch thickness and recessed poor deep equality.

The double side of gap-clearance of piston rings place is provided with symmetrical crescent shaped groove, and crescent shape two washers are separately positioned in the groove of piston ring both sides.

Advantage of the present utility model: the combination of washer and piston ring groove is arranged on the terminal opening of piston ring radical elasticity distribution, can not cause the decay of piston ring radical elasticity thus, has also guaranteed the uniformity of piston ring tangential elastic force simultaneously.

Description of drawings

Fig. 1 is a structural drawing of the present utility model.

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 is the structural representation of another kind of piston ring.

Wherein 1 piston ring, 2 first crescent shaped groove, recessed poor, 4 gap-clearances of piston rings place, 5 of 3 the second half of the month thread forms, 5 ' catch.

Embodiment's explanation

Shown in accompanying drawing 1,2, a kind of catch sealed ring, be provided with opening 4 at piston ring 1, be arranged with thread form groove 2 and second crescent shaped groove 3 in first half of the month in the upper and lower part of a side of open end 4, meniscate catch 5 is arranged in the upper and lower half moon recessed poor 2,3.Because the existence of crescent shape catch 5 makes piston ring 1 form seal type, piston ring is in the state of remaining silent in use.The inside and outside circular arc line of crescent shape catch 5 is consistent with recessed poor 2,3 the inside and outside circular arc line of the upper and lower crescent shape of piston ring 1, the thickness of crescent shape catch 5 and recessed poor 2,3 deep equality.

Also has a kind of catch sealed ring (shown in the accompanying drawing 3).It is the crescent shaped groove up and down 2,3 that is provided with two symmetries in the double side of the opening 4 of piston ring 1, meniscate two washers 5,5 ' be separately positioned on piston ring 1 groove 2,3 in, realize the double seal effect of piston ring 1.Equally, guarantee crescent shape washer 5,5 ' recessed 2,3 the inside and outside circular arc line of being pickled with grains or in wine of the crescent shape of inside and outside circular arc line and piston ring 1 consistent, catch thickness and recessed poor deep equality.

Claims (2)

1, a kind of catch sealed ring, it is characterized in that being provided with first crescent shaped groove and second crescent shaped groove in the side, two ends of gap-clearance of piston rings place, meniscate catch is arranged in upper and lower recessed being pickled with grains or in wine, the inside and outside circular arc line of crescent shape catch is consistent with the upper and lower recessed poor inside and outside circular arc line of piston ring, catch thickness and recessed poor deep equality.

2, piston ring according to claim 1 is characterized in that the double side of gap-clearance of piston rings place is provided with the upper and lower groove of symmetrical crescent shape, and crescent shape two washers are separately positioned in the groove.

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