CN105971764A - Sealing cushion structure for water-cooled engine cylinder head of motorcycle - Google Patents
Sealing cushion structure for water-cooled engine cylinder head of motorcycle Download PDFInfo
- Publication number
- CN105971764A CN105971764A CN201610593345.1A CN201610593345A CN105971764A CN 105971764 A CN105971764 A CN 105971764A CN 201610593345 A CN201610593345 A CN 201610593345A CN 105971764 A CN105971764 A CN 105971764A
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- Prior art keywords
- steel pad
- upper strata
- lower floor
- layer
- pad
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a sealing cushion structure for a water-cooled engine cylinder head of a motorcycle. The sealing cushion structure comprises an upper-layer steel cushion, a middle-layer steel cushion and a lower-layer steel cushion; the inner ring portion of the middle-layer steel cushion is of a double-layer structure, the upper-layer steel cushion and the lower-layer steel cushion form opposite protruding structures at the positions of inner sealing lines, and the upper-layer steel cushion and the lower-layer steel cushion form protruding structures in the reverse direction at the positions of outer sealing lines. The double-layer structure of the middle-layer steel cushion is formed by inner ring flanges. The flanged parts of the middle layers are arranged in the middles of protrusions of the inner sealing lines of the upper steel cushion and the lower steel cushion; after the sealing cushion is pressed, though the inner sealing lines and the outer sealing lines are the same in height, the middle layer at the positions of the inner sealing lines is of a double-layer structure, the middle layer at the position of the outer sealing lines is of a single-layer structure, the pressing degrees at the two positions are different, attachment of the inner ring is tighter than that of an outer ring, the pressure borne by the inner ring is larger, and thus sealing capacity is better.
Description
Technical field
The present invention relates to water-cooled engine, be specifically related to a kind of cooling engine for motor cycle water head seal mat structure, belong to engine gasket technical field.
Background technology
Cylinder head sealing gasket is a kind of potted component, and the medium of sealing is gases at high pressure, cooling water and lubricating oil.In engine working process, in-cylinder pressure change is the fiercest, reaches as high as 1300N/cm2；Delivery temperature is the highest, reaches as high as 1000 DEG C, and thermal stress and compressive stress are fierce and frequent, and condition is very severe.Meanwhile, cylinder head and cylinder block along with these changes compressing, stretch, vibration etc., everything is all to be born by cylinder head sealing gasket, adjust, compensate, to ensure that combustion gas does not leaks.
The head seal mat structure that cooling engine for motor cycle water is conventional at present is Multi-layer composite (seeing Fig. 1, Fig. 2), and Fig. 2 show upper, middle and lower compound steel mat structure, and threeply degree is identical, is 0.2mm.For improving sealing effectiveness, a good appetite suddenly appearing in a serious disease interbed steel pad 2 is outside planar structure, upper strata steel pad 1 and lower floor's steel pad 3 all form identical opposing outer male structure 7 at outer ring and inner ring, respectively constitute external seal line 6 and interior seal line 5, outer male structure 7 can be compressed towards direction, intermediate layer, thus improves sealing effectiveness.The gas pressure that sealing gasket bears is bigger, heat resisting temperature is up to more than 870 °, but along with the change of cylinder block cylinder diameter is big, fastening bolt from cylinder-bore center increasingly away from, owing to water-cooled engine is widely used on tricycle, the severe use environment (road conditions are poor, heavily loaded) of tricycle makes cylinder head have slight beating on the engine, and this is that cylinder head attempts to separate the result caused from cylinder body under compression and combustion pressure effect.These pressure have elongated cylinder head connecting bolt, cause cylinder head opposing cylinder to have slight beating, this slightly beating cylinder head sealing gasket can be made to occur loosening and compressing phenomenon, thus accelerate the damage of cylinder head gasket, affect sealing property.Under normal circumstances, this slight beating is the most small (almost nil), and therefore the impact on cylinder seal performance is also the most small (almost nil).But under abnormal condition, this impact on cylinder seal performance of beating just seems clearly.Jolting or during dither state as motorcycle is in, the pretension bolt of electromotor occurs to loosen, and can produce step microgap and cause seepage between sealing member and motorcycle engine sealing surface.So, try not to allow motorcycle exercise on rugged road for a long time, reduce the probability that cylinder head is slightly beated.On the other hand, between cylinder block, cylinder head, plane roughness and flatness are poor, and the compression ratio of sealing gasket cannot fill up the rough of sealing surface, also result in cylinder and are lined with the phenomenon such as scaling loss, aging viscous cylinder.
Summary of the invention
For deficiencies of the prior art, it is an object of the invention to provide a kind of sealing property more preferable cooling engine for motor cycle water head seal mat structure.
To achieve these goals, the technical solution used in the present invention is as follows:
Cooling engine for motor cycle water head seal mat structure, including ring-type upper strata steel pad, intermediate layer steel pad and lower floor's steel pad；Described intermediate layer steel pad inner round portion is double-decker, and upper strata steel pad and lower floor's steel pad are formed at interior seal line and form opposing raised structures at raised structures in opposite directions, upper strata steel pad and lower floor's steel pad seal line outside；Double-decker is partially disposed in the centre of seal line raised structures in upper strata steel pad and lower floor's steel pad.
The double-decker of described intermediate layer steel pad is formed by inner ring flanging.
Described upper strata steel pad is identical with lower floor steel mat thickness, and intermediate layer steel pad is the half of upper strata steel mat thickness, and after such flange, just to catch up with layer steel mat thickness the same for thickness.
Described upper strata steel pad and lower floor's steel mat thickness are 0.2mm, and intermediate layer steel mat thickness is 0.1mm.
The raised structures height that described upper strata steel pad and lower floor's steel pad are formed at interior seal line is 0.17-0.27mm, and the raised structures height formed at upper strata steel pad and lower floor's steel pad seal line outside is 0.17-0.27mm.
Hinge structure, there is advantages that
Flange rear section, this structure intermediate layer is placed in the centre of seal line projection in upper and lower steel pad, after sealing gasket is compacted, although inside and outside seal line height is the same, but owing to intermediate layer, interior seal line position is double-decker, external seal line position intermediate layer is single layer structure, therefore two positions compress degree difference, and the laminating of inner ring relatively outer ring is tighter, the pressure born is bigger, thus sealability is more preferable.
Accompanying drawing explanation
Fig. 1-existing cylinder head sealing gasket structural representation.
The cross-sectional view of Fig. 2-Figure 1A-location A.
Fig. 3-cylinder head sealing gasket structural representation of the present invention.
Fig. 4-B-B position profile structural representation of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is described in further detail.
See Fig. 3 and Fig. 4, it can be seen that cooling engine for motor cycle water head seal mat structure of the present invention from figure, be similarly three-decker, the most ring-type upper strata steel pad 1, intermediate layer steel pad 2 and lower floor's steel pad 3.Described intermediate layer steel pad 2 inner round portion is double-decker 4, and this double-decker 4 reality is formed by inner ring flanging.Upper strata steel pad 1 and lower floor's steel pad 3 form raised structures 7 in opposite directions at inner ring and constitute interior seal line 5, upper strata steel pad and lower floor's steel pad and enclose the opposing raised structures 7 of formation outside and constitute external seal line 6.Double-decker is partially disposed in the centre of seal line raised structures in upper strata steel pad and lower floor's steel pad.
The most in its natural state, the compound steel pad at interior seal line fits together, and in addition, remaining position compound steel pad forms gap each other, and at seal line because projection gap is maximum outside.Owing to intermediate layer steel is lined with flange, if interior seal line projection is contrary, there may be projection after compression and cannot contact situation.In opposite directions, after being to ensure that compression, high spot pressure is basically identical for interior seal line projection.
Described upper strata steel pad 1 is identical with lower floor steel pad 3 thickness, is 0.2mm, and intermediate layer steel pad 2 is the half of upper strata steel pad 1 thickness, and for 0.1mm, after such flange, just to catch up with layer steel mat thickness the same for thickness.
Raised structures 7 height that described upper strata steel pad and lower floor's steel pad are formed at interior seal line 5 is 0.17-0.27mm, and raised structures 7 height formed at upper strata steel pad and lower floor's steel pad seal line 6 outside is 0.17-0.27mm.
Flange rear section, this structure intermediate layer is placed in the centre of seal line projection in upper and lower steel pad, after sealing gasket is compacted, the total height of interior seal line position is bilayer thickness 0.2mm+ lower thickness 0.2mm after the flange of 0.6mm(upper thickness 0.2mm+ intermediate layer), external seal line position total height 0.6mm=0.5(upper thickness 0.2mm+ lower thickness 0.2mm+ intermediate layer thickness in monolayer 0.1mm) the uncompressed complete total height of+0.1mm(two seal line), this shows: the laminating of inner ring relatively outer ring is tighter, the pressure born is bigger, thus sealability is more preferable.
The above embodiment of the present invention is only for example of the present invention is described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, change and the variation of other multi-forms can also be made on the basis of the above description.Here cannot all of embodiment be given exhaustive.Every belong to obvious change that technical scheme amplified out or the variation row still in protection scope of the present invention.
Claims (5)
1. cooling engine for motor cycle water head seal mat structure, including ring-type upper strata steel pad, intermediate layer steel pad and lower floor's steel pad；It is characterized in that: described intermediate layer steel pad inner round portion is double-decker, upper strata steel pad and lower floor's steel pad form seal line in raised structures in opposite directions is constituted at inner ring, and upper strata steel pad and lower floor's steel pad enclose outside and form opposing raised structures composition external seal line；Double-decker is partially disposed in the centre of seal line raised structures in upper strata steel pad and lower floor's steel pad.
Cooling engine for motor cycle water head seal mat structure the most according to claim 1, it is characterised in that: the double-decker of described intermediate layer steel pad is formed by inner ring flanging.
Cooling engine for motor cycle water head seal mat structure the most according to claim 1, it is characterised in that: described upper strata steel pad is identical with lower floor steel mat thickness, and intermediate layer steel pad is the half of upper strata steel mat thickness.
Cooling engine for motor cycle water head seal mat structure the most according to claim 3, it is characterised in that: described upper strata steel pad and lower floor's steel mat thickness are 0.2mm, and intermediate layer steel mat thickness is 0.1mm.
Cooling engine for motor cycle water head seal mat structure the most according to claim 4, it is characterized in that: the raised structures height that described upper strata steel pad and lower floor's steel pad are formed at interior seal line is 0.17-0.27mm, the raised structures height formed at upper strata steel pad and lower floor's steel pad seal line outside is 0.17-0.27mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610593345.1A CN105971764A (en) | 2016-07-26 | 2016-07-26 | Sealing cushion structure for water-cooled engine cylinder head of motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610593345.1A CN105971764A (en) | 2016-07-26 | 2016-07-26 | Sealing cushion structure for water-cooled engine cylinder head of motorcycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105971764A true CN105971764A (en) | 2016-09-28 |
Family
ID=56950774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610593345.1A Pending CN105971764A (en) | 2016-07-26 | 2016-07-26 | Sealing cushion structure for water-cooled engine cylinder head of motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105971764A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1124830A (en) * | 1995-01-25 | 1996-06-19 | 日本金属密封片株式会社 | Metallilc gasket |
| CN102265070A (en) * | 2008-12-26 | 2011-11-30 | 日本密封垫株式会社 | Seal structure for oil drop hole in cylinder head gasket |
| CN203067120U (en) * | 2013-02-18 | 2013-07-17 | 上海兴盛密封垫有限公司 | Cylinder head gasket composite structure |
| CN103758656A (en) * | 2013-10-18 | 2014-04-30 | 力帆实业(集团)股份有限公司 | Cylinder head sealing gasket and engine comprising cylinder head sealing gasket |
| CN204024848U (en) * | 2014-08-06 | 2014-12-17 | 烟台石川密封垫板有限公司 | A kind of metal laminate formula cylinder gasket |
| CN103154487B (en) * | 2010-10-07 | 2015-11-25 | 日本密封垫株式会社 | cylinder head gasket |
| CN103562603B (en) * | 2011-05-26 | 2015-12-23 | 日本利克雷斯工业株式会社 | Metallic packing |
| CN205876539U (en) * | 2016-07-26 | 2017-01-11 | 力帆实业(集团)股份有限公司 | First sealing pad structure of motorcycle water -cooling engine cylinder |
-
2016
- 2016-07-26 CN CN201610593345.1A patent/CN105971764A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1124830A (en) * | 1995-01-25 | 1996-06-19 | 日本金属密封片株式会社 | Metallilc gasket |
| CN102265070A (en) * | 2008-12-26 | 2011-11-30 | 日本密封垫株式会社 | Seal structure for oil drop hole in cylinder head gasket |
| CN103154487B (en) * | 2010-10-07 | 2015-11-25 | 日本密封垫株式会社 | cylinder head gasket |
| CN103562603B (en) * | 2011-05-26 | 2015-12-23 | 日本利克雷斯工业株式会社 | Metallic packing |
| CN203067120U (en) * | 2013-02-18 | 2013-07-17 | 上海兴盛密封垫有限公司 | Cylinder head gasket composite structure |
| CN103758656A (en) * | 2013-10-18 | 2014-04-30 | 力帆实业(集团)股份有限公司 | Cylinder head sealing gasket and engine comprising cylinder head sealing gasket |
| CN204024848U (en) * | 2014-08-06 | 2014-12-17 | 烟台石川密封垫板有限公司 | A kind of metal laminate formula cylinder gasket |
| CN205876539U (en) * | 2016-07-26 | 2017-01-11 | 力帆实业(集团)股份有限公司 | First sealing pad structure of motorcycle water -cooling engine cylinder |
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Application publication date: 20160928 |
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| RJ01 | Rejection of invention patent application after publication |