CN2205471Y

CN2205471Y - Sealing piston ring

Info

Publication number: CN2205471Y
Application number: CN 94221161
Authority: CN
Inventors: 姚栓成
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-09-06
Filing date: 1994-09-06
Publication date: 1995-08-16
Anticipated expiration: 2004-09-06

Abstract

The utility model relates to a sealing piston ring. The utility model is characterized in that two cut ends of a piston ring are respectively provided with sealing grooves. Sealing blocks are all arranged in the two sealing grooves. When a piston is worn and a cutting mouth of the piston ring is enlarged, the sealing blocks can make up a gap of the cutting mouth. Compared with the prior art, the utility model has the advantages of fuel oil and machine oil saving, no machine oil pollution, power increase, the prolonged service life of fittings, etc.

Description

Sealing piston ring

The utility model belongs to mechanical engineering technical field, is a kind of piston ring that seals.

The existing piston ring in the piston running, rubs mutually with cylinder sleeve, the compressed gap of piston ring constantly progressively enlarges, and after surpassing 0.8 millimeter, fuel vapor enters the quantity showed increased of crankcase, cause serious gas leakage, skewered machine oil on the machine oil obviously reduces the power of internal-combustion engine.

The purpose of this utility model is a kind of piston ring that can remedy the ring gap of design, and the path of crankcase is avoided serious gas leakage, burn oil thereby cut-out cylinder fuel oil bleeds.

Technical solution adopted in the utility model is improved the existing piston ring, in two cut ends of piston ring, offers seal groove respectively, establishes a sealing block in two seal grooves altogether, thereby constitutes a kind of piston ring that seals.

Because the utility model at the newly-increased sealing block of incision, has remedied the gap of piston ring otch, compared with prior art, have the fuel oil of saving, machine oil, machine oil and do not pollute, the corresponding raising of power prolongs advantages such as accessory life-span.

Below in conjunction with accompanying drawing and example the specific structural features that the utility model seals piston ring is described further.

Accompanying drawing 1 expression the utility model seals the plan view of piston ring.

Accompanying drawing 2 expression the utility model seal the plan view of piston ring.

As shown in Figure 1 and Figure 2, the utlity model has ring body 1, cut ends 2, seal groove 3 and sealing block 4.Angle on two cut ends 2 outer respectively offers the seal groove 3 of a platform-like respectively, establishes a sealing block 4 in two seal grooves 3 altogether.

Sealing block 4 and seal groove 3 profilings.The thickness of sealing block 4 is identical with the degree of depth of seal groove 3, and the outer peripheral surface of the lateral surface of sealing block 4 and ring body 1 is on same arc surface.The length of sealing block 4, to guarantee piston ring when expanding with heat and contract with cold and when moving up and down, the gap that can cover cut ends 2 fully is as the criterion.Seal groove 3 length radially is greater than piston ring and exposes annular groove width in addition, and sealing block 4 radial lengths are consistent with seal groove 3, has guaranteed that ring body 1 and sealing block 4 do not misplace when operation.

Be implemented on the pneumatic hammer piston, can be respectively the outer Shang Jiao of piston ring two cut ends and outside inferior horn all offer seal groove, and a sealing block respectively is set in its groove is good.Leave ring body between two sealings as the interval.

Claims

1, a kind of piston ring that seals has ring body, otch, it is characterized in that being respectively arranged with seal groove in piston ring two cut ends, establishes sealing block in seal groove altogether.