CN2396194Y

CN2396194Y - Chrome-plating seal piston ring

Info

Publication number: CN2396194Y
Application number: CN 99250948
Authority: CN
Inventors: 党新胜; 党新旭; 党新明
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-11-18
Filing date: 1999-11-18
Publication date: 2000-09-13
Anticipated expiration: 2009-11-18

Abstract

The utility model relates to a chrome plating seal piston ring, belonging to the technical field of a piston. The utility model is characterized in that the right end of a ring body interface is provided with a plug, and the left end of the ring body interface is provided with a slot. Since the utility model adopts the technical proposal, namely, a chrome plating piston is arranged in a ring groove of the piston and loaded into an air cylinder, then the plug enters the slot to form a horizontal gap and a circumferential gap which is in a right angle shape, and the two gaps are much smaller than a closed gap S, which forms favorable sealing action, reduces gas leakage and oil leakage and raises the comprehensive performance of a piston ring group.

Description

Piston ring is sealed in chromium plating

The utility model belongs to the piston technical field, is that piston ring is sealed in a kind of chromium plating.

The piston ring that internal-combustion engine is used, form by compression ring and oil ring, in compression ring, the branch that first ring and second and third compression ring are arranged again, first compression ring will bear the back pressure of cylinder 76%, and second and third compression ring only bears 27.6% back pressure, and first compression ring is worked under the High Temperature High Pressure in cylinder, condition is very abominable, must make chrome-faced ring.

The purpose of this utility model is a kind of high plating Lopa Nationality seal mouth ring of group synthetic operation performance that encircles of design.

The technological scheme that the utility model is taked is to have ring body, is provided with plug at ring body jointing right-hand member, is provided with slot at ring body jointing left end.

Because the novel technique scheme of having taked of this usefulness, chrome-plated piston is placed in the annular groove of piston and in the cylinder of packing into, at this moment, plug just enters into slot, constituted the horizontal clearance and the circular gap (can see in the A-A cross section) of right angle type, these two gaps are more much smaller than closed gap S, formed good airtight effect, can reduce the gas leakage leakage of oil, improve the synthetic operation performance of piston ring group.

Below in conjunction with accompanying drawing and example, structure characteristic of the present utility model is described further.

Fig. 1 is a general assembly structural representation of the present utility model.

Fig. 2 is a plan structure schematic representation of the present utility model.

Fig. 3 is the utility model A-A cross section structure schematic representation.

As Fig. 1, Fig. 2, shown in Figure 3, the utlity model has ring body 1, jointing right-hand member at ring body 1 is provided with plug 2, jointing left end at ring body 1 is provided with slot 3, chrome-plated piston is placed in the annular groove of piston and in the cylinder of packing into, at this moment, plug 2 just enters into slot 3, the horizontal clearance and the circular gap (in the A-A cross section, can see) of right angle type have been constituted, these two gaps are more much smaller than closed gap S, form good airtight effect, can reduce the gas leakage leakage of oil, improved the synthetic operation performance of piston ring group.

Claims

1. piston ring is sealed in a chromium plating, has ring body, it is characterized in that being provided with plug at ring body jointing right-hand member, is provided with slot at ring body jointing left end.