CN102817742A - Three-layer cylinder gasket for engine - Google Patents
Three-layer cylinder gasket for engine Download PDFInfo
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- CN102817742A CN102817742A CN2012103222599A CN201210322259A CN102817742A CN 102817742 A CN102817742 A CN 102817742A CN 2012103222599 A CN2012103222599 A CN 2012103222599A CN 201210322259 A CN201210322259 A CN 201210322259A CN 102817742 A CN102817742 A CN 102817742A
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- guard ring
- cylinder hole
- cylinder
- sheet metal
- height
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- 239000002184 metal Substances 0.000 claims abstract description 66
- 210000003205 muscle Anatomy 0.000 claims description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 7
- 238000005452 bending Methods 0.000 abstract description 5
- 238000004880 explosion Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention relates to a cylinder gasket of an engine. The three-layer cylinder gasket comprises an upper layer metal plate, a support layer metal plate and a lower layer metal plate; circular cylinder hole sealing ribs are arranged at the circumference of the upper layer metal plate and the lower layer metal plate; the upper surface and lower surface of the support layer metal plate form a cylinder hole retainer at the circumference of a cylinder hole; and the front end area and rear end area of the support layer metal plate form a front end retainer and a rear end retainer respectively. The height of the cylinder hole retainer is changeable, so the contact pressure between the sealing ribs of the cylinder gasket and a cylinder cover as well as a cylinder body is uniform; and the front end retainer and the rear end retainer can counteract a part of the upward bending deformation of the cylinder cover resulted from the explosion of pressure, namely, the longitudinal bending deformation of the cylinder cover can be reduced, thus the sealing reliability of the cylinder gasket and the flexible life of the cylinder cover can be improved conveniently.
Description
Technical field
The invention belongs to technical field of internal combustion engines, be specifically related to a kind of head gasket structure of motor.
Background technique
The effect of head gasket is the reliable sealing that in internal-combustion engine normal operation process, guarantees gas, oil, water.Its working mechanism is the axial force of tightening formation through cylinder bolt, makes cylinder cap clamping cylinder pad.The sealed muscle of arranging on the head gasket produces resiliently deformable, and forms contact pressure between the cylinder block and head when receiving the compressing of cylinder cap, thereby realizes the reliable sealing to media such as gas, oil, water.In engine working process, particularly around the cylinder hole, for realizing the head gasket reliable sealing, contact pressure must reach certain numerical value, and contact pressure everywhere should be evenly continuous at sealed muscle.Higher because of gaseous-pressure in the cylinder-bore, sealed muscle and the contact pressure between cylinder block and head around the cylinder-bore are bigger, so the sealed muscle elastic deformation amount around it is relatively large.And receive high temperature action in the cylinder, sealed muscle is prone to produce plastic deformation, thereby loses sealability.For fear of this situation, need sealed muscle is carried out protection, the sealed muscle place around promptly in the cylinder hole arranges the guard ring of certain altitude, with the amount of deformation of sealed muscle around control, the adjustment cylinder hole in certain scope.Traditional guard ring design is to adopt flange, riveted joint, welding etc., all can not realize the variability of guard ring height.
Along with the development of engine technology level, engine flare pressure is increasingly high, and the sealing problem of the high-temperature high-pressure fuel gas of in-cylinder combustion is increasingly serious.Although the raising of cylinder bolt pretightening force can improve the contact pressure of head gasket sealed muscle and cylinder block and head, but can't guarantee contact pressure around the cylinder hole continuously evenly.The raising of pressure of explosion simultaneously, the longitudinal deformation amount of cylinder cap also can strengthen thereupon.The distortion of cylinder cap not only can influence the reliability of itself, the more important thing is can cause for compressing of head gasket unreal, thereby cause seal failure.
Summary of the invention
In order to adapt to more and more harsher seal request, the motor of band front end guard ring and rear end guard ring that the purpose of this invention is to provide a kind of cylinder hole guard ring alterable height is with three layers of head gasket; To guarantee that under the less situation of the head gasket number of plies sealed muscle around the cylinder-bore and the contact pressure of cylinder block and head are evenly continuous, and reduce the cylinder cap bending deformation quantity in the engine working process.
Motor is with three layers of head gasket; Comprise three layers of head gasket forming by upper strata sheet metal, supporting layer sheet metal and lower metal plate; Upper strata sheet metal, supporting layer sheet metal and lower metal plate are in the same place through riveted fixing; Offer plural cylinder-bore, oilhole, water hole, oil gas through hole and bolt hole on said three layers of head gasket; Be respectively equipped with the cylinder hole sealed muscle of circular arc on the upper and lower layer of each the cylinder-bore circumference place corresponding upper strata sheet metal sheet metal; Be respectively equipped with cylinder hole guard ring on the inboard corresponding supporting layer sheet metal of the cylinder hole sealed muscle at each cylinder-bore circumference place, be respectively equipped with front end guard ring and rear end guard ring on the corresponding supporting layer sheet metal in the front-end and back-end of head gasket; It is characterized in that:
The bottom of the cylinder hole sealed muscle on the sheet metal of upper strata and the spacing between the sheet metal lower surface of upper strata, or the top of the cylinder hole sealed muscle on the lower metal plate and the spacing between the lower metal plate upper surface be the height of cylinder hole sealed muscle, is H1;
Be respectively equipped with bulge loop and lower convex ring on the upper surface of the inboard corresponding supporting layer sheet metal of each cylinder hole sealed muscle and the lower surface; Said going up evenly arranged the above groove of two circles respectively on bulge loop and the lower convex ring; Groove on last bulge loop and the last bulge loop forms the cylinder hole guard ring of upper surface, and the groove on lower convex ring and the lower convex ring forms the cylinder hole guard ring of lower surface.Spacing between the lower surface of the spacing between the upper surface of the end face of last bulge loop and supporting layer sheet metal or the bottom surface of lower convex ring and supporting layer sheet metal is the height of cylinder hole guard ring, and cylinder hole guard ring height is H2;
Cylinder hole guard ring can change at the height number of the different circumferential positions in cylinder hole;
Outer bulge loop before being respectively equipped with on the upper and lower surface of the upper surface of the front end of said supporting layer sheet metal; Be respectively equipped with the outer bulge loop in back on the upper and lower surface of the upper surface of rear end; Arrange evenly respectively on the outer bulge loop of outer bulge loop and back before said that two enclose above groove; Groove on preceding outer bulge loop and the preceding outer bulge loop forms the upper surface guard ring and the lower surface guard ring of front end respectively, and both are highly identical, and is referred to as the front end guard ring; Groove on the outer bulge loop of outer bulge loop in back and back forms the upper surface guard ring and the lower surface guard ring of rear end respectively, and both are highly identical, and is referred to as the rear end guard ring; The height of said front end guard ring and rear end guard ring is H3.
Certainly, as the case may be, the height of front end guard ring and rear end guard ring also can be different;
Cylinder hole guard ring is 0.7 * H2～1.3 * H2 in the height number excursion of the different circumferential positions in cylinder hole, and wherein H2 is 0.09mm; And the maximum height of cylinder hole guard ring is less than the circular arc sealed muscle height H 1 at cylinder hole circle week place, i.e. (1.3 * H2)＜H1;
The height H 3 of front end guard ring and rear end guard ring is less than the minimum constructive height of cylinder hole guard ring, i.e. H3＜(0.7 * H2).
The cylinder hole guard ring that forms around the cylinder of the present invention hole can be implemented in different circumferential position around the cylinder hole through the structural adjustment of mould, has different height.But guarantee the height of guard ring height less than cylinder hole sealed muscle.The variation of the concrete height of cylinder hole guard ring can be decided with the situation that contacts of head gasket sealed muscle according to cylinder cap, cylinder body.Such as in the zone of the bad connection of cylinder cap, cylinder body and head gasket sealed muscle, through the height of guard ring around the adjustment cylinder hole, to strengthen the contact pressure of regional area head gasket sealed muscle and cylinder cap, cylinder body.And in the stronger zone of contact pressure of cylinder cap, cylinder body and head gasket sealed muscle, through the height of guard ring around the adjustment cylinder hole, with the contact pressure of weaken regional area head gasket sealed muscle and cylinder cap, cylinder body.The cylinder hole guard ring height of variable height like this, the contact pressure of even effectively head gasket sealed muscle and cylinder cap, cylinder body.And impact briquetting has realized the variability of cylinder hole guard ring height from technology.In addition, stamping forming guard ring has the manufacturing efficiency height, produces advantages such as dimensional uniformity is good.
The front end guard ring of head gasket of the present invention and rear end guard ring, under assembling condition, cylinder cap can produce compression predeformation at the guard ring place of front end and back end, and this predeformation is resiliently deformable.
When engine operation, the pressure of explosion in the cylinder makes cylinder cap produce bending deflection upwards.If the amount of deformation that makes progress that cylinder cap produces is excessive, can make the cylinder cap fatigue failure on the one hand, effective clamping cylinder pad on the other hand, thus cause the seal failure of head gasket.If guard ring is arranged in the front end and back end at head gasket, the cylinder cap predeformation that the front end and back end produces under assembling condition can be offset a part of cylinder cap because of the bending deflection that makes progress that pressure of explosion produces, and has promptly reduced the buckling deformation amount of cylinder cap.
Description of drawings
Fig. 1 is the head gasket schematic top plan view.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is an X place partial enlarged drawing among Fig. 2.
Fig. 4 is a Y place partial enlarged drawing among Fig. 2.
Fig. 5 is the D-D sectional view of Fig. 1.
Sequence number among the last figure: upper strata sheet metal 1, supporting layer sheet metal 2, lower metal plate 3, cylinder hole sealed muscle 4, water hole sealed muscle 5, cylinder hole guard ring 6, upper surface cylinder hole guard ring 61, lower surface cylinder hole guard ring 62, front end guard ring 7, front end upper surface guard ring 71, front end lower surface guard ring 72, rear end guard ring 8, rear end upper surface guard ring 81, rear end lower surface guard ring 82, front end guard ring region 9, rear end guard ring region 10.
Embodiment
Below in conjunction with accompanying drawing, the present invention is done explanation further through embodiment.
Embodiment
Referring to Fig. 1 and Fig. 2, three layers of head gasket that the head gasket of motor is made up of upper strata sheet metal 1, supporting layer sheet metal 2 and lower metal plate 3, upper strata sheet metal 1, supporting layer sheet metal 2 and lower metal plate 3 are in the same place through riveted fixing.Offer plural cylinder-bore, oilhole, water hole, oil gas through hole and bolt hole on three layers of head gasket, be respectively equipped with cylinder hole sealed muscle 4, the water hole sealed muscle 5 of circular arc on the upper and lower layer of the corresponding upper strata sheet metal at each the cylinder-bore circumference place sheet metal.Sealed muscle circular arc bottom, cylinder hole on the sheet metal of upper strata and the spacing between the sheet metal lower surface of upper strata or the sealed muscle circular arc top, cylinder hole on the lower metal plate and the spacing between the lower metal plate upper surface are cylinder hole sealed muscle height, are H1.Be respectively equipped with bulge loop and lower convex ring on the upper surface of each cylinder-bore circumference place supporting layer sheet metal 2 and the lower surface, last lower convex ring is positioned at the inboard of cylinder hole sealed muscle 4, sees Fig. 2.Evenly arrange the above groove of two circles on last bulge loop and the lower convex ring respectively; Form cylinder hole guard ring 6; Specifically go up bulge loop and the groove on it and form upper surface cylinder hole guard ring 61; Lower convex ring and the groove on it form lower surface cylinder hole guard ring 62, and upper surface cylinder hole guard ring 61 on the supporting layer sheet metal 2 and the lower surface cylinder hole guard ring 62 on the supporting layer sheet metal 2 are at the same circumferential position in cylinder hole, and be highly identical.The base altitude of upper surface cylinder hole guard ring 61 and lower surface cylinder hole guard ring 62 is H2, sees Fig. 3.
Cylinder hole guard ring 6 is at the different circumferential positions in cylinder hole, and height number can change, and excursion is 0.7 * H2～1.3 * H2, and wherein H2 is 0.09mm.And the maximum height of cylinder hole guard ring 6 is less than cylinder hole sealed muscle 4 height H 1, i.e. (1.3 * the H2)＜H1 at cylinder hole circle week place.
Outer bulge loop before being respectively equipped with on the upper and lower surface of the upper surface of the front end of supporting layer sheet metal 2, outer bulge loop after being respectively equipped with on the upper and lower surface of the upper surface of rear end, even respectively layout two is enclosed above groove on said preceding outer bulge loop and the outer bulge loop in back.Preceding outer bulge loop and the groove on it form front end guard ring 7; Outer bulge loop in back and the groove on it form rear end guard ring 8; The upper surface bulge loop of the front end on the supporting layer sheet metal 2 and the groove on it form front end upper surface guard ring 71 specifically; The lower surface bulge loop of the front end on the supporting layer sheet metal 2 and the groove on it form front end lower surface guard ring 72; The upper surface bulge loop of the rear end on the supporting layer sheet metal 2 and the groove on it form rear end upper surface guard ring 81; The lower surface bulge loop of the rear end on the supporting layer sheet metal 2 and the groove on it form rear end lower surface guard ring 82, and the height of the height of the height of front end upper surface guard ring 71, front end lower surface guard ring 72, the height of rear end upper surface guard ring 81 and rear end lower surface guard ring 82 is H3, sees Fig. 4, Fig. 5.
The height H 3 of front end guard ring 7 and rear end guard ring 8 is less than the minimum constructive height of cylinder hole guard ring 6, i.e. H3＜(0.7 * H2).
Cylinder hole sealed muscle 4, water hole sealed muscle 5, cylinder hole guard ring 6, front end guard ring 7, rear end guard ring 8 are all through the stamping process moulding.
Below specify cylinder hole guard ring in the cylinder hole around different positions have different height.
As shown in Figure 1, at the B-B place of deciding what is right and what is wrong in cylinder hole with the C-C place that decides what is right and what is wrong.The height of the cylinder hole guard ring 6 at the B-B place of deciding what is right and what is wrong is the upper limit of guard ring height number, i.e. 1.3 * H2.The height of the cylinder hole guard ring 6 at the C-C place of deciding what is right and what is wrong is the lower limit of guard ring height number, i.e. 0.7 * H2.Certainly, at other local location in this cylinder hole or some local location in other cylinder hole, the height of cylinder hole guard ring 6 can be different from its base altitude H2; The upper limit or lower limit for height number; Also can be between upper and lower, i.e. 0.7 * H2～1.3 * H2, wherein H2 is 0.09 ㎜.And the maximum height of cylinder hole guard ring is less than the circular arc sealed muscle height H 1 at cylinder hole circle week place, i.e. (1.3 * H2)＜H1; The height H 3 of front end guard ring and rear end guard ring is less than the minimum constructive height of cylinder hole guard ring, i.e. H3＜(0.7 * H2).
Claims (3)
1. motor is with three layers of head gasket; Comprise three layers of head gasket forming by upper strata sheet metal, supporting layer sheet metal and lower metal plate; Upper strata sheet metal, supporting layer sheet metal and lower metal plate are in the same place through riveted fixing; Offer plural cylinder-bore, oilhole, water hole, oil gas through hole and bolt hole on said three layers of head gasket; Be respectively equipped with the cylinder hole sealed muscle of circular arc on the upper and lower layer of each the cylinder-bore circumference place corresponding upper strata sheet metal sheet metal; Be respectively equipped with cylinder hole guard ring on the inboard corresponding supporting layer sheet metal of the cylinder hole sealed muscle at each cylinder-bore circumference place, be respectively equipped with front end guard ring and rear end guard ring on the corresponding supporting layer sheet metal in the front-end and back-end of head gasket; It is characterized in that:
The bottom of the cylinder hole sealed muscle on the sheet metal of upper strata and the spacing between the sheet metal lower surface of upper strata, or the top of the cylinder hole sealed muscle on the lower metal plate and the spacing between the lower metal plate upper surface be the height of cylinder hole sealed muscle, is H1;
Be respectively equipped with bulge loop and lower convex ring on the upper surface of the inboard corresponding supporting layer sheet metal of each cylinder hole sealed muscle and the lower surface; Said going up evenly arranged the above groove of two circles respectively on bulge loop and the lower convex ring; Groove on last bulge loop and the last bulge loop forms the cylinder hole guard ring of upper surface, and the groove on lower convex ring and the lower convex ring forms the cylinder hole guard ring of lower surface;
Spacing between the lower surface of the spacing between the upper surface of the end face of last bulge loop and supporting layer sheet metal or the bottom surface of lower convex ring and supporting layer sheet metal is the height of cylinder hole guard ring, and cylinder hole guard ring height is H2;
Cylinder hole guard ring can change at the height number of the different circumferential positions in cylinder hole;
Outer bulge loop before being respectively equipped with on the upper and lower surface of the upper surface of the front end of said supporting layer sheet metal; Be respectively equipped with the outer bulge loop in back on the upper and lower surface of the upper surface of rear end; Arrange evenly respectively on the outer bulge loop of outer bulge loop and back before said that two enclose above groove; Groove on preceding outer bulge loop and the preceding outer bulge loop forms the upper surface guard ring and the lower surface guard ring of front end respectively, and both are highly identical, and is referred to as the front end guard ring; Groove on the outer bulge loop of outer bulge loop in back and back forms the upper surface guard ring and the lower surface guard ring of rear end respectively, and both are highly identical, and is referred to as the rear end guard ring; The height of said front end guard ring and rear end guard ring is H3;
Certainly, the height of front end guard ring and rear end guard ring also can be different.
2. motor according to claim 1 is characterized in that with three layers of head gasket: cylinder hole guard ring is 0.7 * H2～1.3 * H2 in the height number excursion of the different circumferential positions in cylinder hole, and wherein H2 is 0.09mm; And the maximum height of cylinder hole guard ring is less than the circular arc sealed muscle height H 1 at cylinder hole circle week place, i.e. 1.3 * H2＜H1.
3. motor according to claim 1 is characterized in that with three layers of head gasket: the height H 3 of front end guard ring and rear end guard ring is less than the minimum constructive height of cylinder hole guard ring, i.e. H3＜0.7 * H2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103222599A CN102817742A (en) | 2012-09-04 | 2012-09-04 | Three-layer cylinder gasket for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103222599A CN102817742A (en) | 2012-09-04 | 2012-09-04 | Three-layer cylinder gasket for engine |
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| Publication Number | Publication Date |
|---|---|
| CN102817742A true CN102817742A (en) | 2012-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103222599A Pending CN102817742A (en) | 2012-09-04 | 2012-09-04 | Three-layer cylinder gasket for engine |
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| CN (1) | CN102817742A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956595A (en) * | 2016-10-14 | 2018-04-24 | 上汽通用汽车有限公司 | Engine and its cylinder gasket |
| CN108474474A (en) * | 2016-01-05 | 2018-08-31 | 费德罗-莫格尔有限责任公司 | Multi-layer gasket component |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10217526A1 (en) * | 2001-09-29 | 2003-04-10 | Elringklinger Ag | Cylinder head gasket has inner and outer metal layers with grooves surrounding ports which enclose central steel sheet with stopper consisting of pattern of cup shaped depressions separated by raised areas |
| EP1298364B1 (en) * | 2001-09-29 | 2005-06-22 | ElringKlinger AG | Metallic cylinder head gasket |
| JP2005299686A (en) * | 2002-07-12 | 2005-10-27 | Uchiyama Mfg Corp | Gasket |
| US20080174075A1 (en) * | 2004-07-14 | 2008-07-24 | Elringklinger Ag | Cylinder Head Gasket |
| CN101360937A (en) * | 2006-07-27 | 2009-02-04 | 莱茵兹密封垫有限公司 | Multi-layer metallic flat gasket, in particular cylinder head gasket |
| CN202732149U (en) * | 2012-09-04 | 2013-02-13 | 安徽江淮汽车股份有限公司 | Three-layer cylinder gasket for engine |
-
2012
- 2012-09-04 CN CN2012103222599A patent/CN102817742A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10217526A1 (en) * | 2001-09-29 | 2003-04-10 | Elringklinger Ag | Cylinder head gasket has inner and outer metal layers with grooves surrounding ports which enclose central steel sheet with stopper consisting of pattern of cup shaped depressions separated by raised areas |
| EP1298364B1 (en) * | 2001-09-29 | 2005-06-22 | ElringKlinger AG | Metallic cylinder head gasket |
| JP2005299686A (en) * | 2002-07-12 | 2005-10-27 | Uchiyama Mfg Corp | Gasket |
| US20080174075A1 (en) * | 2004-07-14 | 2008-07-24 | Elringklinger Ag | Cylinder Head Gasket |
| CN101360937A (en) * | 2006-07-27 | 2009-02-04 | 莱茵兹密封垫有限公司 | Multi-layer metallic flat gasket, in particular cylinder head gasket |
| CN202732149U (en) * | 2012-09-04 | 2013-02-13 | 安徽江淮汽车股份有限公司 | Three-layer cylinder gasket for engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108474474A (en) * | 2016-01-05 | 2018-08-31 | 费德罗-莫格尔有限责任公司 | Multi-layer gasket component |
| CN107956595A (en) * | 2016-10-14 | 2018-04-24 | 上汽通用汽车有限公司 | Engine and its cylinder gasket |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20121212 |