CN2709665Y

CN2709665Y - Piston ring

Info

Publication number: CN2709665Y
Application number: CN 03207415
Authority: CN
Inventors: 李振国
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-08-19
Filing date: 2003-08-19
Publication date: 2005-07-13
Anticipated expiration: 2013-08-19

Abstract

The utility model relates to a piston ring. An upper semi-pressing tongue and a lower semi-pressing tongue which are symmetrical are respectively arranged at the both ends of the opening of the piston ring body of the piston ring. The piston ring presents the opening state in the state of nature. When a clamping piston groove is arranged in a cylinder, the piston ring presents the closed and gapless state under the action of the pinching of the inner wall of the cylinder. The outer wall of the ring close contacts with the inner wall of the cylinder under the action of the tension the outer wall of the ring, as a result reaches the purpose of leak resistance.

Description

Piston ring

Technical field

The utility model relates to a kind of piston and anti-device, the piston ring among the particularly a kind of piston of any internal-combustion engine of packing into and the gap of cylinder let out of cylinder inner wall fluid of internal-combustion engine.

Background technique

Existing internal combustion engine and cylinder inner wall interstitial fluid leakage preventer generally include diesel engine, petrol engine, gas engine, coal gas diesel engine, adopt the opening piston ring to make the fluid leakage preventer invariably, comprising the steel band ring of import interior.

Usually internal-combustion engine is when high speed operation, piston ring is at piston and cylinder surfaces back and forth rubs mutually and cause cylinder bore diameter to enlarge, piston ring is under the effect of self tension force, its open end interdigit crack is widened, when piston stroking upward, under the effect of firing chamber fluid pressure, force inflammable gas rush at the bottom of the machine oil and consume by the piston ring gap that has widened.Conversely, when descent of piston, because the interior pressure effect at the bottom of the machine oil, machine oil uniform particles ground is covered with the inwall of cylinder, machine oil and oil gas just rush at the firing chamber and are burnt from the piston ring gap that has widened.Owing to widening gradually of piston ring gap lost the anti-function that goes up escape of liquid, thereby just caused internal-combustion engine (because underpressure) starting difficulty, exempted from strong point exactly and catch fire, its power also descends significantly.This disadvantage is (the steel band ring that comprises import) ubiquity all in internal-combustion engine, just, because of causing, widening of piston ring gap scurry vapour up and down, not only expend fuel oil but also expend machine oil, incomplete combustion, tail blowdown concentration extremely exceeds standard, and space environment is polluted greatly, hardly imaginable to the harm that ecotope causes, meanwhile also caused internal-combustion engine to descend because of underpressure makes expection power.

Summary of the invention

The purpose of this utility model provides a kind of piston in the internal-combustion engine and piston ring of the anti-escape of liquid among the cylinder inner wall gap of being arranged on.This NZ piston ring device can be packed in the gap of the piston of any internal-combustion engine and cylinder, thereby plays the effect of fluid anti-leak, and it can be used in any environment for a long time.

The purpose of this utility model is achieved in that a kind of piston ring, is respectively equipped with first pressure tongue and second pressure tongue of symmetry at the two ends of a piston ring body opening.

The girth of described piston ring is than the long 10mm of the girth of standard piston ring.

Described first presses tongue and second to press the length of tongue to be respectively 10mm.

It is respectively 1/2 of standard piston ring thickness that described first presses tongue and second to press the thickness of tongue.

Described first presses tongue and second to press the thickness of tongue preferably to be respectively 1.25mm.

This piston ring is the opening form under nature, when pincers are gone into piston groove when inserting in the cylinder, be closed no gap state under the squeezing action of cylinder inner wall, the outer wall of this ring closely contacts with cylinder inner wall under the effect of self tension force, thereby reaches the purpose of leakproof.

The utility model has the advantages that: adopt iron, chromium, manganese material to make piston ring (anti-escape of liquid device); it is with the mutual wear rate of cylinder inner wall, than one times of the long service life of common piston ring; during the equal 5mm of its opening part, it also is equivalent to usually new piston ring and answers role.The experiment proved that, save fuel oil, save machine oil 60%, gaining rate 5%, guaranteed output 100% 20%.Therefore the anti-escape of liquid device-piston ring of the utility model has played the effect of " the two oil of joint are protected power " in internal-combustion engine.

Below in conjunction with accompanying drawing the utility model is elaborated.

Description of drawings

Fig. 1 is a sectional drawing of the present utility model;

Fig. 2 is a user mode schematic representation of the present utility model.

The drawing reference numeral explanation: 1-1 is the piston ring body of iron, chromium, manganese material; First of 1-2 piston ring left end pressed tongue; Second of 1-3 piston ring right-hand member pressed tongue; The 2-1 cylinder; The 2-2 cylinder inner wall; The 2-3 piston; The 2-4 piston ring groove; The 2-5 piston ring; The 2-6 piston ring presses tongue to overlap.

Embodiment

Referring to Fig. 1, piston ring of the present utility model is to constitute like this, and first pressure tongue 1-2 that is respectively equipped with symmetry at the opening two ends of a piston ring body 1-1 presses tongue 1-3 with second.

The girth of described piston ring body 1-1 is than the long 10mm of the girth of standard piston ring.

Described first presses tongue 1-2 and second to press the length of tongue 1-3 to be respectively 10mm.

It is respectively 1/2 of standard piston thickness that described first presses tongue 1-2 and second to press the thickness of tongue 1-3, preferably is respectively 1.25mm.

This piston ring is the opening form under nature, when pincers are gone into piston groove when going in the cylinder, be closed no gap state under the squeezing action of cylinder inner wall, the outer wall of this ring closely contacts with cylinder inner wall under the effect of self tension force, thereby reaches the purpose of leakproof.

Fig. 2 has shown a kind of user mode of the present utility model.First of the two ends at gap-clearance of piston rings position presses tongue 1-2 and second to press tongue 1-3, be opening square dentation under field conditions (factors), insert and then be closed state in the cylinder when this ring clamp being gone into piston ring groove, promptly first presses tongue 1-2 and second to press tongue 1-3 to overlap, thereby forms the piston ring of a sealing.The stroke of described pressure tongue is 10mm (shown in the label 2-6 among Fig. 2), and piston ring is under the effect of self tension force, and the outer wall of piston ring pushes against the inwall of cylinder (shown in the label 2-5 among Fig. 2).When piston stroking upward, the lower plane of piston ring is speeded up the supine plane of piston lower end, and when descent of piston, the ventricumbent plane of piston ring groove upper end is speeded up on the last plane of piston ring.

This shows, go into piston groove when going in the cylinder when ring expander, be closed no gap state under the squeezing action of cylinder inner wall, the outer wall of this ring closely contacts with cylinder inner wall under the effect of self tension force, thereby reaches the purpose of leakproof.

Claims

1, a kind of piston ring is characterized in that: first pressure tongue and second pressure tongue that are respectively equipped with symmetry at the two ends of a piston ring body opening.

3, piston ring according to claim 1 is characterized in that the length of described first pressure tongue and second pressure tongue is respectively 10mm.

5, piston ring according to claim 1 is characterized in that the thickness of described first pressure tongue and second pressure tongue is respectively 1.25mm.