CN2388361Y

CN2388361Y - Combined oil ring for gasoline vehicle

Info

Publication number: CN2388361Y
Application number: CN 99212828
Authority: CN
Inventors: 潘一新
Original assignee: JOINT-VENTURE DIBOGECI PISTON RINGS Co Ltd ANQING CITY
Current assignee: JOINT-VENTURE DIBOGECI PISTON RINGS Co Ltd ANQING CITY
Priority date: 1999-06-04
Filing date: 1999-06-04
Publication date: 2000-07-19
Anticipated expiration: 2009-06-04

Abstract

The utility model discloses a combined oil ring in a ring set of a gasoline vehicle piston ring, which comprises an upper and a lower scraping sheets (1). An S-shaped steel belt bushing ring (2) is arranged between the two scraping sheets, and the cross section of the combined oil ring is an 'H' shape. The elastic force distribution of the bushing ring of the combined oil ring is even, the free opening quantity is zero, and the combined oil ring has no stretching opening or no overlapping opening, no flexing and no butterfly shape. The combined oil ring has the excellent capabilities of oil scraping and oil return. The utility model can improve fuel economy as well as can prolong the life time of a rubbing pair, and the utility model is only suitable for the gasoline engines of EQ 140 vehicles, CA141 vehicles, and BJ212 vehicles.

Description

The gasoline car combined oil ring

The utility model relates to a kind of piston ring, relates in particular to the combined oil ring in a kind of gasoline vehicle engine piston ring ring group.

Gasoline car piston ring ring group comprises compression ring and oil ring.At present, the oil ring that domestic piston ring manufacturing firm generally produces is divided into two kinds basically, and a kind of is cast iron inner support spring-loaded oil control ring, and another kind is the oil ring that is combined into by two scraping blades and middle U steel band of model grommet up and down.The oil ring of mentioned kind in use comes with some shortcomings: 1, free open is and dehisces or take mouth, deflection, dish; 2, the grommet oil return of " enclosed " design is bad relatively.Above-mentioned deficiency causes elastic force inhomogeneous, and frictional loss is big, thereby causes fuel consumption unusual, the heel and toe wear of friction pair.

The purpose of this utility model is to provide a kind of can reduce oil consumption, has both improved fuel economy, can prolong the novel combined oil ring in friction pair life-span again.

The purpose of this utility model is achieved in that this gasoline car combined oil ring comprises upper and lower two scraping blades, is provided with the steel band grommet of serpentine shape between two scraping blades, and the cross section of described combined oil ring is " H " shape.

Technique scheme has adopted the steel band grommet of serpentine shape, because this grommet itself has certain width, therefore, elastic force is evenly distributed, and the free open amount is zero, and nothing is dehisced or taken mouth, and no deflection does not have dish.Again because grommet is the serpentine shape, its space becomes bigger, therefore, have frizing, oil return ability preferably, cylinder body (inboard wall of cylinder liner) is had than better adaptability of other kind oil ring and stickiness, and especially bad to roundness, abrasion is big or the uneven cylinder body of abrasion (cylinder sleeve) effect is more obvious.In addition, this kind combined oil ring also have in light weight, friction power loss is little, advantage such as easy for installation.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is the schematic representation of the utility model combined oil ring;

Fig. 2 is the worm's eye view of combined oil ring shown in Figure 1;

Fig. 3 is the sectional view of A-A line among Fig. 1;

Fig. 4 is a serpentine grommet partial schematic diagram in the combined oil ring shown in Figure 1.

By Fig. 1, Fig. 2 as seen, combined oil ring of the present utility model comprises the steel band grommet 2 that is provided with the serpentine shape between two scraping blades, 1, two scraping blade 1, and the width of the width of this steel band grommet 2 and two scraping blades 1 is suitable.With reference to Fig. 3, the cross section of this combined oil ring is " H " shape.

Again as seen by Fig. 3, Fig. 4, be equipped with crowned 3 in serpentine steel band grommet 2 upper and lower faces inboards, this crowned 3 can block two scraping blades 1 up and down, makes the external diameter of two scraping blades 1 up and down be slightly larger than the external diameter of serpentine steel band grommet 2, like this, this combined oil ring installs more convenient.Serpentine steel band grommet described in the utility model combined oil ring can be selected the import stainless steel material for use, and described scraping blade is selected the import heat-resistant and wear-resistant material for use.The utility model combined oil ring is only applicable to the petrol engine of EQ140 automobile, CA141 automobile, these three kinds of gasoline cars of BJ212 automobile.

Claims

1, a kind of gasoline car combined oil ring comprises upper and lower two scraping blades, it is characterized in that: be provided with the steel band grommet (2) of serpentine shape between upper and lower two scraping blades (1), the cross section of described combined oil ring is " H " shape.

2, combined oil ring according to claim 1 is characterized in that: the inboard at described serpentine steel band grommet (2) upper and lower faces is equipped with crowned (3).