CN201025156Y - Gas cylinder cushion - Google Patents
Gas cylinder cushion Download PDFInfo
- Publication number
- CN201025156Y CN201025156Y CNU2007201538676U CN200720153867U CN201025156Y CN 201025156 Y CN201025156 Y CN 201025156Y CN U2007201538676 U CNU2007201538676 U CN U2007201538676U CN 200720153867 U CN200720153867 U CN 200720153867U CN 201025156 Y CN201025156 Y CN 201025156Y
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- Prior art keywords
- head gasket
- hole
- head
- elastic material
- cylinder block
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Abstract
The utility model relates to a cylinder mat which can seal the water hole, the oil hole, the pole hole and the helix hole of the open water passage and a sealing water passage and is not easy to be damaged and aged, and has a low making and maintaining cost. The utility model comprises a water hole for the cooling liquid, an oil hole for the lubricant oil, a pore to return the oil and the helix hole to connect the cylinder mat with other components through screw; wherein a springy material sealing line is provided surround the water hole, the oil hole, the pole hole and the helix hole.
Description
Technical field
The utility model relates to a kind of head gasket that is used for internal-combustion engine, relates in particular to the sealing configuration of water hole on the head gasket, oilhole, tappet bore, bolt hole.
Background technique
On the head gasket of prior art, generally all can seal water hole, oilhole, tappet bore and bolt hole.For example, disclose a kind of head gasket in the China ZL01261643.5 utility model patent, the positive periphery in its cutout hole at the cylinder pad (combustion chamber hole) and water hole is provided with the seal ring of a circle projection, and mention the sealing circle and can form with the pad integrated punching, also can adopt special copper-clad mode to form.When head gasket and cylinder block and cylinder head are press fit into a time-out, cylinder head only contacts with seal ring, and area of contact is less, thereby has significantly improved the sealability of head gasket.
Yet this head gasket but has following shortcoming: metal material hardness is required too high, processing back stress is difficult for eliminating, and easily twist on the plane, and is actually and improves its sealability, preferably sprays glue more in addition to help auxiliary seal.In addition because the metallic material body does not have the compression rebound characteristic, and the contact segment of cylinder cap and head gasket only be the seal ring part, and therefore projection is played meeting generation plastic deformation behind the muscle seal ring pressurized, causes seal failure, the sealing effect instability.In addition, especially for the seal ring of punching press formation,, then can cause the entire cylinder pad to scrap and can't continue and keep in repair use, so on long-range angle, be unfavorable for reducing user cost in case breakage takes place for it.And with regard to the seal ring of copper-clad mode, copper product manufacturing process complexity, sealing effect are relatively poor.
In addition, the head gasket sealing configuration is cast structures such as glue and edge glue ring in addition in the prior art.Wherein cast plastic structure and be in the water hole, oilhole, tappet bore, bolt hole inboard, cast out seal ring with the mode of casting glue Cheng Huan.Edge glue ring structure is the glue ring of having made on the other insert in the hole of water hole, oilhole, tappet bore, bolt hole.Wherein when making the casting plastic structure, the porose position of institute need once cast gum forming, in case there have a hole to cast the glue ring to be defective, will cause the entire cylinder pad to be scrapped, so manufacture cost is too high, and inefficiency, does not meet production in enormous quantities.Edge glue ring structure then only is suitable for the covered conduit sealing, and is just powerless to the sealing of open channel motor, promptly can only do independent sealed and can't do the wire sealing.Thereby its sealing range is little, does not benefit extensive use.
Summary of the invention
At the problems referred to above, through concentrating on studies and testing, the utility model is now proposed, its purpose is, providing a kind of can effectively seal the water hole on motor open channel and the covered conduit, oilhole, tappet bore and tapped hole, and not fragile or aging, make and maintenance maintenance head gasket with low cost.
Head gasket in technological scheme 1, it is disposed between the cylinder cap and cylinder body of internal-combustion engine, has: the water hole that supplies cooling liquid to pass through; The oilhole that supplies lubricant oil to pass through; The tappet bore that is used for oil return; And tapped hole, thereby be used for described head gasket and other parts being installed to cooperations such as bolts, wherein, be provided with the elastic material potted line round the circumferential edges of described water hole, oilhole, tappet bore or tapped hole.
Adopt the technical program, with cylinder head, cylinder block and head gasket install compress after, utilize the compressing of the elastic material that is arranged at water hole, oilhole, tappet bore, tapped hole periphery, can implement effective seal to described each hole between cylinder head and cylinder block.
On the head gasket in technological scheme 2, described elastic material potted line can be coated with accordingly annotate in described head gasket respectively on two faces of cylinder block and head.
Adopt the technical program,, can improve sealing reliability effectively, and technology is simple by on the bi-side of described head gasket, elastic material being set, with low cost, form a reliable sealing configuration in better simply mode.
On the head gasket in technological scheme 3, described elastic material can be organosilicon or fluorine rubber.
Adopt the technical program,, can implement good sealing described each hole between cylinder head and cylinder block by organosilicon or the fluorine rubber that employing has following characteristic.Organosilicon has high and low temperature stability preferably, and still can keep intensity and elasticity constant under the high and low temperature state.In addition, its hardness range broad, no burn into is water-fast, weather-resistant and compressive strain, to have low surface tension and chemical property stable.In addition, compare with conventional organic elastomer, organosilicon is easily manufacturing also.Fluorine rubber has high-temperature stability preferably, and oil resistant, performance are more comprehensive.
On the head gasket in technological scheme 4, described elastic material can be an Organic fluoride silica gel.
Adopt the technical program, can adopt Organic fluoride silica gel, good sealing is implemented in described each hole between cylinder head and cylinder block with better characteristic.This Organic fluoride silica gel has superior oil resistance, and processibility is good.
On the head gasket in technological scheme 5, described elastic material can be highly to be 0.1mm～2mm, and width is 1mm～10mm.
Adopting the technical program, is 0.1mm～2mm by the height setting with described elastic material, and width is set at 1mm～10mm, can be on the basis that can reach abundant sealing effect, and save material to greatest extent and cut down finished cost.And can guarantee under the impaction state after cylinder head, cylinder block and head gasket install that described elastic material part can possess good resilience.
On the head gasket in technological scheme 6 or 7, described water hole is corresponding to the free-standing water channel between the cylinder block and head.
On the head gasket in technological scheme 8 or 9, be provided with open channel between cylinder block and head, described water hole is connected with this open channel, in the circumferential edges of this whole water channel described potted line is set.
Adopt the technical program, by open channel is set, the water hole is connected with this water channel and described elastic material potted line is set in the circumferential edges of this whole water channel, can make cooling liquid free-flow and non-leakage in the water channel zone that potted line impaled, thereby reach effective sealing the open channel motor.Because what adopt between cylinder body and cylinder cap in this case is open channel, therefore can guarantees that the cooling liquid process is arranged on the large size of cylinder block, thereby can carry out good cooling cylinder block.
On the head gasket in technological scheme 10, described head gasket can be single-layer metal plate head gasket.
The sealing configuration that elastic material is set on head gasket is particularly useful for single-layer metal plate head gasket, helps improving sealing effect and reduces manufacture cost.
Adopt head gasket of the present utility model, make potted line, can carry out sealing effectively and reliably the water hole on motor open channel and the covered conduit, oilhole, tappet bore and tapped hole by using elastic material, and not fragile or aging.And of the present utility model simple in structure, easily manufactured, it is not only applicable to the covered conduit sealing, also applicable to open water channel sealing.In addition, even under the situation that seal ring is damaged, also since its be provided with the split of liner main body and processing simple, therefore be convenient to keep in repair and maintenance cost lower.
Description of drawings
The plan view of the head gasket that Fig. 1 is.
Fig. 2 is under the situation of mode of execution 1, along the sectional view of A-A line among Fig. 1.
Fig. 3 is the plan view of the head gasket of mode of execution 2.
Embodiment
Head gasket with the in-line four cylinder explosive motor is that example is introduced the utility model.
(mode of execution 1)
Fig. 1 is the plan view of the head gasket of mode of execution 1 of the present utility model, and Fig. 2 is under the situation of mode of execution 1, along the sectional view of A-A line among Fig. 1.
As shown in Figure 1, head gasket 1 has a plurality of combustion chamber holes 2, water hole 3, oilhole 4, tapped hole 5 and tappet bore 6.This head gasket 1 has the structure of individual layer.Be relatively independent setting between each water hole 3, when head gasket 1 is arranged between cylinder block (not shown) and the cylinder head (not shown), the position of combustion chamber hole 2 is corresponding with the burner port (not shown) on the cylinder block; Water hole 3 is corresponding with water channel (not shown) position on described cylinder block and the described cylinder head; Oilhole 4 is corresponding with the supply oil duct (not shown) on described cylinder block and the described cylinder head; Tapped hole 5 is corresponding with the screw mouth on described cylinder block and the described cylinder head, can be for inserting bolt in addition fastening between described cylinder block and described cylinder head; Tappet bore 6 is corresponding with the oil return oil duct (not shown) on described cylinder block and the described cylinder head.
On head gasket 1, be formed with the sealed department of making by elastic material 10 round the circumferential edges of each water hole 3, oilhole 4, tapped hole 5 and tappet bore 6.As shown in Figure 2, sealing portion 10 be coated with accordingly annotate in described head gasket 1 respectively on two faces of described cylinder block and cylinder head.
Show that through experimental result under the cylinder normal working, the machine oil that flows through the cooling liquid in water hole 3 and flow through oilhole 4 all can not surpass 100 ℃, general elastic material all can not burnt out under this temperature.In experiment, reaching under 300 ℃ the temperature, the Organic fluoride silica gel that is adopted is not still burnt out, and has still kept good performance.
This elastic material is preferably with organosilicon or fluorine rubber, and organosilicon has high and low temperature stability preferably, and still can keep intensity and elasticity constant under the high and low temperature state.In addition, its hardness range broad, no burn into is water-fast, weather-resistant and compressive strain, to have low surface tension and chemical property stable.In addition, compare with conventional organic elastomer, organosilicon is easily manufacturing also.Fluorine rubber has high-temperature stability preferably, and oil resistant, performance are more comprehensive.
The height of described sealed department 10 on the head gasket thickness direction is preferably 0.1mm～2mm, and is preferably 1mm～10mm at the width in the radial direction in the hole that it sealed.Experimental result shows, considers that it just can guarantee sealing effect after the impacting force on the cylinder block above-below direction will reach certain value, so the thickness of sealing portion 10 can not be too thin when deforming behind the elastic material pressurized.Be unfavorable for guaranteeing the installation precision between head gasket and cylinder block, the cylinder head if its thickness (i.e. height) is excessive, and the elastic material consumption that can cause making sealed department 10 is too much, have influence on Economics of Processing, and reach at thickness under the situation of certain value, difficulty of processing also can increase because of the increase of thickness.In addition, if the width of sealed department is too small, then be unfavorable for guaranteeing sealability, if its width is excessive, the elastic material consumption that then also can cause making sealed department 10 is too much, has influence on Economics of Processing.Therefore, be 0.1mm～2mm by height setting with sealed department 10, width is set at 1mm～10mm, can reach on the basis of abundant sealing effect, saves material to greatest extent and cuts down finished cost.And can guarantee under the impaction state after cylinder head, cylinder block and head gasket install that described elastic material can provide reliable sealing to described each hole.
Thus, when this head gasket 1 is in running order, utilization compresses the sealed department 10 that is arranged at each water hole 3, oilhole 4, tapped hole 5 or tappet bore 6 peripheries, makes it distortion and is close to each surface of contact, thereby can implement good sealing to described each hole between cylinder head and cylinder block.
In addition, even under the situation that sealed department 10 is damaged, also because it is simple with head gasket 1 split setting and processing, therefore be convenient to keep in repair and maintenance cost lower.
(mode of execution 2)
Fig. 3 is the plan view of the head gasket of mode of execution 2.In the present embodiment, to a last mode of execution in identical parts adopt same numeral and omit explanation it.
On head gasket 1, the water hole both comprised with mode of execution 1 in identical a plurality of independent water hole 3, comprise the water hole 30 of a plurality of " Y " font again.Cylinder block and head is provided with open channel, and when head gasket 1 was arranged between cylinder block (adopting diagram) and the cylinder head (not shown), this each water hole 30 was connected with this open channel.Circumferential edges along this whole water channel is formed with the sealed department of being made by elastic material 10.The structure at its concrete sealing position is identical with the structure of above-mentioned mode of execution 1.When cylinder operation, cooling liquid can free-flow in the water channel zone that described potted line impaled.The employing of this open channel can guarantee that the cooling liquid process is arranged on the large size of cylinder block and head, thereby can carry out good cooling to cylinder block and head.
In the present embodiment, if adopt the injecting glue mode on head gasket 1, to form described sealed department 10, then especially can bring into play simple, the with low cost and high advantage of processing degrees of freedom of its operation.
With above-mentioned two kinds of mode of executions is that example is introduced the utility model, but the utility model is only for the situation that is used for the respective embodiments described above, and it can carry out various changes in the scope that does not break away from purport of the present utility model.For example emphatically to cast interface shape be that semicircular sealed department is that example is illustrated qualification to be coated with in the utility model, but the sectional shape of sealing portion is not limited to this, also can be circular, trapezoidal, rectangle, triangle etc., so long as can provide the shape of effective sealing all can.In addition, though present embodiment is that example is illustrated with the head gasket of four cylinder engine only, be not limited to this, the structure of head gasket of the present utility model can also be used at V font motor, or uses on the flat opposed motor.And so long as between the cylinder head and cylinder block of internal-combustion engine, the internal-combustion engine that uses head gasket to seal all can use the utility model.
Claims (10)
1. head gasket, it is disposed between the cylinder cap and cylinder body of internal-combustion engine, has: the water hole of passing through for cooling liquid; The oilhole that supplies lubricant oil to pass through; The tappet bore that is used for oil return; And tapped hole, thereby be used for described head gasket and other parts being installed to cooperations such as bolts,
It is characterized in that, be provided with the elastic material potted line round the circumferential edges of described oilhole, water hole, tappet bore or tapped hole.
2. head gasket as claimed in claim 1 is characterized in that,
Described elastic material potted line be coated with accordingly annotate in described head gasket respectively on two faces of cylinder block and head.
3. head gasket as claimed in claim 2 is characterized in that,
Described elastic material is organosilicon or fluorine rubber.
4. head gasket as claimed in claim 3 is characterized in that,
Described elastic material is an Organic fluoride silica gel.
5. as each described head gasket in the claim 1～4, it is characterized in that,
The height of described elastic material is 0.1mm～2mm, and width is 1mm～10mm.
6. as each described head gasket in the claim 1～4, it is characterized in that,
Described water hole is corresponding to the free-standing water channel between the cylinder block and head.
7. head gasket as claimed in claim 5 is characterized in that,
Described water hole is corresponding to the free-standing water channel between the cylinder block and head.
8. as each described head gasket in the claim 1～4, it is characterized in that,
Be provided with open channel between cylinder block and head, described water hole is connected with this open channel, in the circumferential edges of this whole water channel described potted line is set.
9. head gasket as claimed in claim 5 is characterized in that,
Be provided with open channel between cylinder block and head, described water hole is connected with this open channel, in the circumferential edges of this whole water channel described elastic material potted line is set.
10. head gasket as claimed in claim 1 is characterized in that,
Described head gasket is a single-layer metal plate head gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201538676U CN201025156Y (en) | 2007-05-28 | 2007-05-28 | Gas cylinder cushion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201538676U CN201025156Y (en) | 2007-05-28 | 2007-05-28 | Gas cylinder cushion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201025156Y true CN201025156Y (en) | 2008-02-20 |
Family
ID=39099017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201538676U Expired - Fee Related CN201025156Y (en) | 2007-05-28 | 2007-05-28 | Gas cylinder cushion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201025156Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629531B (en) * | 2009-08-22 | 2011-04-13 | 崔玉春 | Internal combustion engine cylinder cover spacer |
| CN103401202A (en) * | 2013-07-15 | 2013-11-20 | 苍南县永盛电力工程有限公司 | Water leakage prevention sealing strip for cable pit cover plate |
-
2007
- 2007-05-28 CN CNU2007201538676U patent/CN201025156Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629531B (en) * | 2009-08-22 | 2011-04-13 | 崔玉春 | Internal combustion engine cylinder cover spacer |
| CN103401202A (en) * | 2013-07-15 | 2013-11-20 | 苍南县永盛电力工程有限公司 | Water leakage prevention sealing strip for cable pit cover plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080220 |