CN201125798Y

CN201125798Y - Point staggered type biplate self-closing complementary energy-saving piston ring

Info

Publication number: CN201125798Y
Application number: CNU2007200619055U
Authority: CN
Inventors: 蹇丰; 刘鑫
Original assignee: DONGGUAN CITY HUALIAN ENVIRONMENTAL PROTECTION ENGINEERING Co Ltd
Current assignee: DONGGUAN CITY HUALIAN ENVIRONMENTAL PROTECTION ENGINEERING Co Ltd
Priority date: 2007-12-18
Filing date: 2007-12-18
Publication date: 2008-10-01
Anticipated expiration: 2017-12-18

Abstract

The utility model relates to a combustion engine piston ring technical field, namely a point staggered form biplate self-sealing complementary energy saving piston ring, composed of two rings folded with an opening, characterized in that, two cuts on the two rings are overlapped in a certain angle, namely two cuts form the well-shaped crossing form on the four projection lines of the axial direction of the two rings. The utility model has the advantages that the openings of the two rings are overlapped in a certain angle, namely the ventilation or the leakage area is only the middle part of the well-shape, which is smaller than that in the background art, which greatly advances the sealing performance of the double-piston ring, and is a point staggered form biplate self-sealing complementary energy saving piston ring. The utility model is convenient for the unit production process, the type sorting and the using management, which is suitable for the piston ring extending use for all types of types and specifications.

Description

A kind of the self-enclosed complementary energy-saving piston ring of staggered form biplate

Technical field:

The utility model relates to the piston ring technical field of internal-combustion engine, refers in particular to a kind of the self-enclosed complementary energy-saving piston ring of staggered form biplate.

Background technique:

Traditional piston ring is a groove one ring structure, in actual application, because wearing and tearing continue to increase the working clearance on the piston ring, so that sealability descends, air leakage increases, power descends, and oil consumption increases, in order to improve sealing, often adopt the multiple tracks compression, but increasing, the annular groove number makes that piston is elongated to be increased the weight of, owing to increased the consumption of material, and inertial force is increased, the one-slot and double ring structure has appearred in recent years, because the opening of ring is a straight cut, easily makes the register of two rings cause gas leakage under the effect of air pressure, so do not reach the purpose that improves sealability.

Name is called No. 00252387.6 Chinese patent of " the complementary energy-conserving and environment-protective piston ring of a kind of selfsealings "; referring to Fig. 1-2: proposed a kind of otch that on dicyclo, is provided with respectively; the otch of a ring 01 is a straight cut 011; the otch of another ring 02 is the technological scheme of angular cut 021; but; no matter be straight cut 011 or angular cut 021; it all is otch radially; owing to reasons such as vibrations; general piston ring at work all can be in relative rotation; when two rings 01; 02 otch 011; 021 turns to when overlapping on the faying surface of two rings; will form a little A to air-flow path; the impact force P that above-mentioned patent document has proposed air-flow at this point is decomposed into P1 and two component of P2; P2 component wherein can promote that piston ring 02 rotates and the theory that reaches self-enclosed gas circuit; deficiency is: when processing the otch 011 that encircles on 01; traditional excision technology is vertically to excise that section arc at otch 011 place; otch 011 on two rings; during 021 complete matching; otch 011 on the two rings; 021 linearly coincidence; make two otch 011; the 021 coincidence area of opening is too big, and sealing effect is not good.

Summary of the invention:

Coincidence area when the purpose of this utility model provides otch on effective minimizing two rings and overlaps, reduce the self-enclosed complementary energy-saving piston ring of a kind of some staggered form biplate of air leakage.

The utility model is achieved in that a kind of the self-enclosed complementary energy-saving piston ring of staggered form biplate, by two folded mutually forming of ring that opening is arranged, it is characterized in that two otch on the two rings overlap is certain angle, and promptly four projection lines of two otch on the axial direction of two rings form well word cross-like.

The otch of a ring of above-mentioned two rings is a straight cut, and the otch of another ring is an angular cut, and angular cut is the 35-55 degree with outer stupefied angle.

Otch on the above-mentioned ring also can be the angular cut of 35-55 degree, and this angular cut is opposite with the cut-out direction of angular cut on another ring.

The rectangular cross-like of cut-out direction of the angular cut on the angular cut on the above-mentioned ring and another ring.

The outstanding compared to existing technology advantage of the utility model is:

1, the opening of two

rings

1,2 of the present utility model overlaps and is certain included angle, i.e. ventilation or gas leakage area only have the intermediate portion of above-mentioned " well " word, meet little many of the ventilation that overlaps or gas leakage area with two in the background technique, having improved the sealability of dual-active plug ring greatly, is a kind of the self-enclosed complementary energy-saving piston ring of staggered form biplate.

2, two

rings

1,2 of the present utility model is if all be made into the angular cut formula, then only need to make a kind of structural type, and when mounted two rings 1,2: one forward installations, another reverse installations are got final product, be convenient to unified production technology, type classification and use and management.

3, the utility model suits to do piston ring on the piston of various models, specification and applies.

Description of drawings:

Fig. 1 is the plan view of background technique;

Fig. 2 is that overlooking of background technique amplified and self-enclosed schematic diagram;

Fig. 3 is the schematic perspective view of ring 1 of the present utility model;

Fig. 4 is the schematic perspective view of ring 2 of the present utility model;

Fig. 5 is the plan view of ring 2 of the present utility model;

Fig. 6 is the schematic top plan view of ring 2 of the present utility model;

Fig. 7 is a schematic perspective view of the present utility model;

Fig. 8 is the A place enlarged view of Fig. 2;

Fig. 9 is the sectional perspective enlarged view of two

incision

11,22 coincidences place of two

rings

1,2 of the present utility model;

Embodiment:

With specific embodiment the utility model is further described below:

Embodiment 1: referring to Fig. 3-9: a kind of the self-enclosed complementary energy-saving piston ring of staggered form biplate, by two folded mutually forming of ring that opening is arranged, it is characterized in that two otch 11,21 on the two

rings

1,2 overlap is certain angle, and promptly four projection lines 111,112,221,222 of two otch 11,21 on the axial direction of two

rings

1,2 form well word cross-like.

The otch of a ring 1 of above-mentioned two

rings

1,2 is a straight cut 11, and the otch of another ring 2 is an angular cut 21, and angular cut 21 is the 35-55 degree with outer stupefied angle C1.

Otch on the above-mentioned ring 1 also can be the angular cut of 35-55 degree, and this angular cut is opposite with the cut-out direction that another encircles the angular cut 21 on 2.

The angular cut on the above-mentioned ring 1 and the rectangular cross-like of cut-out direction of the angular cut 21 on another ring 2.

Angular cut 22 on the above-mentioned ring 2 can be cut sth. askew along the clockwise direction of ring, referring to the angular cut 22 of Fig. 5, also can cut sth. askew along the counterclockwise direction of ring, and referring to the angular cut 22a of Fig. 5, the 221a among the figure, 222a are the scarf or the line of cutting sth. askew.

Working principle: the otch of ring 1 is a straight cut 11, the otch of ring 2 is an angular cut 22, angular cut 22 is the 35-55 degree with outer stupefied angle C1, like this, the one, when two

rings

1,2 is overlapping, ring 2 can 1 move in a circle around ring under the effect of air-flow, reaches the effect of the automatic sealing that two rings staggers mutually; The 2nd, when two

rings

1,2 when overlapping, because two

rings

1,2 opening overlaps and is certain included angle, i.e. ventilation or gas leakage area only have the intermediate portion of above-mentioned " well " word, meet little many of the ventilation that overlaps or gas leakage area with two in the background technique, improved the sealability of dual-active plug ring greatly, but and then the power of hoisting machine, save machine oil, gasoline or diesel oil, reduce user cost, reduce environmental pollution, the 3rd, because the gas leakage area reduces, having reduced piston ring is a kind of the self-enclosed complementary energy-saving piston ring of staggered form biplate in the carbon distribution generation of incision.

The utility model suits to do piston ring on the piston of various models, specification and applies.The foregoing description only is one of preferred embodiment of the present utility model; be not to limit practical range of the present utility model with this; so: all equivalences of doing according to shape of the present utility model, structure, principle change, and all should be covered by within the protection domain of the present utility model.

Claims

1, a kind of self-enclosed complementary energy-saving piston ring of staggered form biplate, by two folded mutually forming of ring that opening is arranged, it is characterized in that two otch (11,21) on the two rings (1,2) overlap is certain angle, and promptly four projection lines (111,112,221,222) of two otch (11,21) on the axial direction of two rings (1,2) form well word cross-like.

2, the self-enclosed complementary energy-saving piston ring of a kind of some staggered form biplate according to claim 1, the otch that it is characterized in that a ring (1) of described two rings (1,2) is straight cut (11), the otch of another ring (2) is angular cut (21), and angular cut (21) is the 35-55 degree with outer stupefied angle (C1).

3, the self-enclosed complementary energy-saving piston ring of a kind of some staggered form biplate according to claim 1, it is characterized in that the otch on the described ring (1) also can be the angular cut of 35-55 degree, the cut-out direction of the angular cut (21) on this angular cut and another ring (2) is opposite.

4,, it is characterized in that the angular cut on the described ring (1) and the rectangular cross-like of cut-out direction of the angular cut (21) on another ring (2) according to claim 2 or the self-enclosed complementary energy-saving piston ring of 3 described a kind of some staggered form biplates.