CN1207164A - Combustion gas seal for an internal combustion engine - Google Patents
Combustion gas seal for an internal combustion engine Download PDFInfo
- Publication number
- CN1207164A CN1207164A CN 97191591 CN97191591A CN1207164A CN 1207164 A CN1207164 A CN 1207164A CN 97191591 CN97191591 CN 97191591 CN 97191591 A CN97191591 A CN 97191591A CN 1207164 A CN1207164 A CN 1207164A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- seal arrangement
- groove
- cylinder head
- described seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Gasket Seals (AREA)
Abstract
A combustion seal for sealing high pressure combustion gas within at least one cylinder of an internal combustion engine including a cylinder block (15), a cylinder head (11) having a groove (17) formed in its bottom face, a cylinder liner (13) having a complementary groove (19) formed in its top face, and an O-ring (4) is formed from a ductile material and positioned between and contacting each edge of the groove formed in the cylinder head and the complementary groove formed in the cylinder liner, wherein the O-ring is compressed when the cylinder head is secured on the cylinder such that the O-ring has multiple radial restraint points of contact with the edges.
Description
The application is that the serial number of submitting on September 16th, 1996 is No.714, the part continuation application of 766 U.S. Patent application.
The invention technical field
The present invention relates to a kind of high pressure seal, relate in particular to the gas seal of internal-combustion engine, comprise that is configured in an O type ring that between cylinder head and the cylinder liner high-pressure gas is produced effective sealing.
Background of invention
For economic operating internal-combustion engines effectively, must have various suitable seal devices, overflow to stop the gas or the liquid that can harm engine performance.Especially, the high-pressure gas in the sealing cylinder is for the valid function internal-combustion engine, and especially diesel engine is absolutely necessary.Suitable sealing between cylinder liner and the cylinder head is essential for diesel engine, and for fire fuel, diesel engine is according to being disinclined to optimal pressure and temperature situation.If the sealing of the cylinder head of cylinder liner is inappropriate, may in cylinder, spill in combustion gas during the engine running, cause engine power loss and decrease in efficiency.On cylinder liner and cylinder head interface, attempt to provide aspect the effective seal arrangement, developed various apparatus and method.An example of this trial is from people's such as Tapper U.S. Pat 4,917, can find in 062, this patent disclosure when cylinder head is anchored on the cylinder block, adopt flexible polymer " O " the type ring that seals in the complementary rectangle groove that is pressed in cylinder head and the engine cylinder-body.Yet people's such as Tapper device is not to be used for sealing effectively high-pressure gas in the internal-combustion engine.For example, people such as Tapper adopt a kind of flexible polymer " O " type ring, because the high-pressure gas that produces in the internal-combustion engine, it may destroy.
Another kind of combustion seal structure can be SU1 at the serial number of Butov, 481, to find in the russian patent application of 45/A1, and it discloses the seal arrangement between contact combustion engine cylinder head and the cylinder liner.The sealing device comprises a seal ring of being made by deformable material, and cylinder head and cylinder liner have a succession of locked groove that forms thereon.When cylinder head when fastening, in the ridge indentation sealing ring between each locked groove, thereby is formed a seal arrangement between cylinder head and cylinder liner.Many grooves on cylinder head and cylinder liner, owing to require that accurate position is arranged, and this exact position has guaranteed that corresponding groove correctly cooperates, and therefore, has increased the manufacture cost of sealing engagement.
German patent application No 35 30 372 A1 of Heitjohann disclose the seal arrangement that is used for pressure annular space between two peripheries.The sealing device comprises a ring, and it is maintained at one of two peripheries and goes up in the annular groove that is provided with.This documents claims this ring for " being flexible coupling ", this means that it is made by soft material.With regard to this meaning, disclosed this member has same shortcoming in people's patents such as above-mentioned Topper in the document of Heitjohann.
Another kind of combustion seal structure sees people's such as Wallgren U.S. Pat 2,553,222, and it adopts a seal ring, when cylinder head being installed and fixedly the time, it is pressed in the groove of formation in the cylinder portion.The sealing ring comprises red copper, can be in this cylinder groove internal strain.When removing cylinder head and installing once more subsequently, the sealing ring can be put upside down, like this, this ring is pressed in the groove that forms in the cylinder portion once more.Yet people's such as Wallgren seal ring only forms the sealing at a position between cylinder head and cylinder portion, and this has increased the chance that high-pressure gas is overflowed from cylinder during engine running.As mentioned above, this problem can be damaged engine performance and efficient.
The U.S. Pat 5,275,139 of Rosenqnist discloses a kind of seal arrangement, and it comprises a deep trouth and the complementary deep trouth that forms in cylinder head in cylinder body.One loose fit around anti-fire ring be configured in the groove of cylinder head and cylinder block.This Rosenquist device is complicated, and wherein, the sealing matching requirements has one in cylinder head and the deep trouth in the cylinder block, and this increases manufacture cost.In addition, this device does not adopt cylinder liner, and therefore, many kinds of motors that press fit in the cylinder liner in the cylinder barrel for employing are unpractical.The loose fit guard ring also is undesirable, because it has increased the cost of manufacturing process, and has limited sealability.
Based on the limited explanation of above-mentioned documents, need a kind of gas seal structure, it makes simple, and durable and effective, so that stand at the high gaseous-pressure that acts on during the engine running on the sealing device.Improved seal arrangement has improved the efficient that motor reaches peak performance.Destroyed combustion seal device can cause undesirable shutdown of internal-combustion engine and expensive repairing under high gaseous-pressure.Therefore, must make gas seal can stand motor running day by day, and under high pressure and high temperature, not be damaged.
Summary of the invention
In view of top described, an object of the present invention is to provide a kind of improved gas seal, it makes simple, and durable and effective, so that standing the high combustion-gas pressure that acts on the seal arrangement during the engine running.
Another object of the present invention is to realize above-mentioned purpose, and a kind of improved gas seal also is provided between combustion engine cylinder head and cylinder liner.
Another purpose of the present invention is to realize one or more above-mentioned purposes, and also provide a kind of gas seal structure, it is provided with the radial constraint point, when heating power that produces during bearing engine running and mechanical force, seal ring is fixed between cylinder head and the cylinder liner.
A further object of the present invention provides a kind of gas seal; wherein make the less important power that acts on the O type seal ring reduce to minimum during the engine running; with protection O type seal ring; and between sealing O type seal ring and the cylinder head with O type seal ring, and between sealing O type seal ring and the cylinder head and the interface between O type seal ring and the cylinder liner.
These and other purpose of the present invention is to realize that by a kind of gas seal in order to the high-pressure gas at least one cylinder of sealing internal-combustion engine this internal-combustion engine comprises a cylinder block, is shaped on one or more cylinder barrels in it; One cylinder head has an end face and bottom surface.Cylinder head becomes to be rigidly connected with cylinder block, is shaped on a groove on the bottom surface of cylinder head.In addition, the sealing device comprises a cylinder liner, cylinder is with an end face, and be loaded at least one cylinder barrel of in cylinder block, making, this cylinder liner is shaped on the groove of a complementation on its end face, one O type ring is configured in the groove made on the cylinder head and between the complementary groove of making on the cylinder liner, and contact with each seamed edge of these grooves, wherein, when cylinder head was anchored on cylinder, O type ring made O type ring and these seamed edges form a plurality of radially contiguity constraint points by compression, and the part of O type ring produces flat distortion, abuts on the bottom surface of cylinder head and on the end face of cylinder liner.The groove that forms on cylinder head and cylinder liner can have V-arrangement, rectangle or semicircle.And O type ring comprises a kind of yielding material, such as carbon steel, and alloyed steel and Steel Alloy.In addition, this alloy can adopt known heat treatment process, as annealing, heat-treats.When being fastened to cylinder head on the cylinder block, O type ring is between these grooves on the cylinder head and on the cylinder liner before exerting pressure.One when applying compressive force, and O type ring protrudes in these grooves the part of O type ring just in these groove internal strains, and the part of O type ring is flat distortion, abuts on the surface of cylinder head and cylinder liner.High contact stress appears in the seamed edge position at each groove of O type loop contacts, thereby provides a kind of seal arrangement for the high-pressure gas that is produced by motor.
Best, the gas seal of making by the present invention comprises a cylinder liner, is shaped on a groove on it in the plane, and the plane that the wall portion of this groove extends to cylinder head contacts.When the installation load was applied on the cylinder head, the cross sectional thickness of metal O type ring was compressed to the degree of depth of the groove that forms on cylinder liner.The sealing load that puts on the cylinder head is determined by the degree of depth of the groove that forms on cylinder liner and the load flexural property of metal O type ring.In addition, this radially outer cell wall comprises that one first basic vertical component effect and one are from this first rake that extends radially outwardly.Form a seamed edge betwixt, it constitutes radial constraint to O type ring, and guarantees that combustion gas seals reliably, and during engine running, the thermal walking of cylinder head and cylinder liner has produced and increased contact force between cylinder sleeve and the cylinder cap.Because each wall portion of the groove that forms on cylinder liner extends to cylinder head, therefore, the thermal stress that acts on the O type ring seal arrangement reduces to minimum, thereby has protected this O type ring seal arrangement when assembling.
When reading specification by means of some accompanying drawings, these and other advantage of the present invention is because following detailed illustration meeting becomes obvious.
Brief Description Of Drawings
Fig. 1 is the top view of cylinder head gasket chip architecture of the present invention;
Fig. 2 is the cross-sectional side elevation view of gas seal of the present invention before being compressed;
Fig. 3 is the cross-sectional side elevation view of gas seal of the present invention after by compression;
Fig. 4 is according to an alternate embodiment of the present invention, comprises the amplification cross-sectional side elevation view of gas seal of the O type ring of a band coating;
Fig. 5 is according to the O type ring of an alternate embodiment of the present invention and the cross-sectional side elevation view of half slot structure;
Fig. 6 is according to the O type ring of an alternate embodiment of the present invention and the cross-sectional side elevation view of rectangle groove structure;
Fig. 7 is the cross-sectional side elevation view according to the gas seal of an alternate embodiment of the present invention, wherein the recessed cylinder block of cylinder liner;
Fig. 8 is the cross-sectional side elevation view according to the gas seal of an alternate embodiment of the present invention, and wherein O type ring was placed in before being compressed in the root of cylinder liner;
Fig. 9 is the cross-sectional side elevation view according to the gas seal of an alternate embodiment of the present invention, and wherein, the O type ring of Fig. 8 is placed in after by compression in the groove of cylinder liner;
Figure 10 is the cross-sectional side elevation view according to a preferential embodiment's of the present invention gas seal, and wherein, O type ring is installed in the groove of cylinder liner, and compressed by cylinder head.
Preferential embodiment describes in detail
With reference to each accompanying drawing, now with regard to several alternate embodiment narration the present invention.The present invention is a kind of improved gas seal, overcomes heat and the mechanical stress that acts on during the engine running on the sealing device by produce a plurality of radially contiguity constraint points in seal arrangement, thereby is sealed in the high-pressure gas that produces in the internal-combustion engine.
Fig. 1 represents the top view of gas seal of the present invention.Shown in gas seal 1 pass cylinder head gasket 3, the latter is made up of a body thin slice or plate, a plurality of holes is arranged, as shown in Figure 1 on it.Specifically, cylinder head gasket 3 comprises a cylinder-bore 2, and it defines the profile of cylinder barrel, and during engine running, a piston (not shown) is reciprocating in cylinder barrel.Gland shim 3 also comprises cooling channel 5, bolt hole 7 and oil duct 9.The sealing cooling liquid in these holes is for being fixed in cylinder cap on the motor (not shown) and providing assurance for sealing lubricating oil.This provides sealing as prevent that gas or liquid from leaking during engine running gland shim.
The cross-sectional side elevation view of in Fig. 2, having represented gas seal.The figure shows the state of cylinder each gas sealing parts before the reality sealing, in the hope of clearly illustrating the relation between each parts of the present invention.
Referring now to Fig. 2, gas seal 1 is made by wire loop, and it is known as " anti-fire ring " sometimes.Should have the shape of O type ring 4 by anti-fire ring, this will illustrate in the remaining part of this specification.High-pressure gas between O type ring 4 sealing cylinder cap surfaces and the cylinder liner top end.O type ring will bear high-pressure gas pressure and high temperature.
Except O type ring 4, gas seal 1 comprises a cylinder head 11, cylinder liner 13, cylinder block 15 and cylinder head gasket 3.Cylinder head 11 comprises a sheet metal, and it utilizes the bolt (not shown) to be fixed on the cylinder block 15.Cylinder block 15 is made by metal blank, and comprises one or more cylinder barrels, and cylinder liner 13 is installed on wherein.15 one-tenth frictional engagement relations of cylinder liner 13 and cylinder block make not reciprocating and load that produces or the excessive temperature that is applied to it and pressure of reason piston (not shown) and becoming flexible of cylinder liner within it.For obtaining this friction law, cylinder liner 13 can be pressed fit in the cylinder barrel of cylinder block 15 or and fix with some other method.One when being installed in the cylinder block 15, and the end face of the end face of cylinder liner or plane and cylinder block 15 flushes.This cylinder liner comprises a kind of metallic material, such as steel, and can be made by the material that is different from cylinder block.Though this gas seal structure is represented as the wet liner with no top flange, yet, above-mentioned sealing thought of the present invention also is applicable to the upper flange wet cylinder liner, dry cylinder liner, intermediate support (mid-stop) cylinder sleeve and the original cylinder barrel cylinder block of not having independent cylinder sleeve.
For forming effective gas sealing, to prevent high-pressure gas effusion cylinder during the engine running, cylinder head 11 usefulness bolt (not shown)s are fixed in cylinder block 15.When cylinder head 11 initial installations, O type ring 4 is just wired contact the in the seamed edge place of annular groove 17 and complementary groove 19.Along with the cylinder head construction bolt applies load, O type ring just deforms.
O type 4 is made by the yielding material such as metal.Best, O type ring 4 can comprise carbon steel, alloyed steel or Cuprum alloy.O type ring can be made by one of some kinds of methods, such as, drawing of certain-length dialled wire be configured as ring, its end is welded together, with wire joint smooth treatment, to eliminate not the closely wire segments of contact.In addition, O type ring can be made with machining fully by solid blank, or makes with cold working or with hot working.Best, the alloy of making O type ring is through annealing in process, yet, also can adopt any known suitable heat treatment process.
With reference to Fig. 3, after being fixed to cylinder head 11 on the cylinder block 15, the part of O type ring 4 is come out at annular groove 17 and complementary groove 19 convexes, and the part of O type ring 4 produces flat distortion, abuts on the first cylinder sleeve surface 25 of first cylinder lid surface 23.Same distortion occurs in the opposition side of O type ring 4, as shown in this Fig.Distortion on cylinder cap and cylinder sleeve surface on both is played O type ring is fastening and be sealed in effect between cylinder cap and the cylinder sleeve.The effect that prevents that high-pressure gas from leaking through gas seal 1 is also played in this distortion.
When being fixed to cylinder head on the cylinder block, O type ring produces further distortion, to form a gas seal.This distortion occurs on the seamed edge of annular groove 17 and complementary groove 19.Specifically, Fig. 3 represents that this distortion occurs on first cylinder sleeve seamed edge 27, the first cylinder cap seamed edges, 29, the second cylinder sleeve seamed edges 31 and the second cylinder cap seamed edge 33.This sharp-pointed load is concentrated, and produces contact closely between gas lid 11 and O type ring 4 and between cylinder sleeve 13 and O type ring 4, thereby has formed effective sealing of high-pressure gas.The final compression height of O type ring 4 can be different from the compressed thickness of gland shim 3.The Deformation Height of O type ring 4 depends on the size and the deflection of the part that matches, and can slightly change around O type ring 4.
Fig. 4 represents annular groove 17, complementary groove 19 and an O type ring 4 that amplifies.Cylinder cap and cylinder sleeve groove all have triangle or recessed V-arrangement.This recessed V-shaped groove allows O type ring 4 to be out of shape in some way and enters in the part of these grooves, so that form sealing reliably between cylinder cap and cylinder sleeve.According to the structural relation between O type ring 4, annular groove 17 and the complementary groove 19, the green diameter of O type ring 4 can be in 1.2 to 2 times the scope of gland shim 3 thickness.For example, if the thickness of gland shim body is 0.25 inch, then the diameter of O type ring 4 just is in the scope of 0.3 inch to 0.5 inch.And the width of recessed V-shaped groove (groove seamed edge to the seamed edge on cylinder cap and cylinder sleeve face is measured) can be in 0.3 to 1.2 times of scope of O type ring 4 diameters.For example, if O type ring diameter is 0.5 inch, then the width of recessed V-shaped groove just is in 0.15 to the 0.6 inch scope.In addition, the angle 35 of recessed V-shaped groove can be in 60 ° to the 120 ° scopes.Certainly, along with the increase of recessed V-shaped groove angle, above-mentioned width also increases.The width of the top groove that provides and angular range have just produced a kind of gas seal, and during engine running, it can bear high temperature and the gaseous-pressure that acts on the sealing device.
O type ring among Fig. 4 comprises a coating 37, and such as the coat of metal or materials similar, it can be coated on O type ring, so that be adapted to surface finish part in addition better, and improves its sealability.Coating 37 can comprise zinc coating, as a kind of effective coating material of cheapness, yet, can adopt any material known that comprises silver.The coating of O type ring 4 is alternate embodiments of the present invention, and it can be used to the certain applications that the claimed structure feature has bells and whistles.
In other alternate embodiment, the cylinder cap groove can have different shapes with the cylinder sleeve groove.Fig. 5 and 6 represents circle and rectangle groove respectively, and they can be used among the present invention.Its a little groove can be made in cylinder head and cylinder liner by the mode that is analogous to above-mentioned recessed V-shaped groove.The radius of circular groove 39 shown in Figure 5 can be in 0.3 to 0.8 times of scope of O type 4 diameters, and for example, if O type ring diameter is 0.5 inch, then the radius of circular groove 39 can be in 0.15 inch to the 0.4 inch scope.The width of the circular groove 39 that records at the groove seamed edge place on cylinder cap and cylinder sleeve two planes should be less than the twice of its radius.
With regard to Fig. 6, the width of the rectangle groove 41 that records at the groove seamed edge place on cylinder cap and cylinder sleeve two planes is in 0.3 to 1.0 times of scope of O type ring 4 diameters.For example, if the diameter of O type ring 4 is 0.5 inch, then the width of rectangle groove 41 is in 0.15 inch to the 0.5 inch scope.The degree of depth of rectangle groove 41 can be 0.1 to 0.3 times of O type ring 4 diameters.Therefore, for the O type ring that diameter is 0.5 inch, the degree of depth of rectangle groove 41 will be in 0.05 inch to the 0.15 inch scope.Cylinder head need not be identical with the interior groove of cylinder liner.The chi inch of the shape of these grooves must be selected with respect to O type ring diameter and gland shim thickness, to obtain correct distortion of the present invention and contact performance.
The present invention is shown the table top surface of cylinder sleeve 13 with the end face of cylinder body 15 and flushes substantially, as shown in Figure 2.Fig. 7 represents an alternate embodiment, and its cylinder sleeve 13 is than a cylinder surface prearranging quatity 45 recessed down.In the case, will adopt larger-diameter O type ring 4, to produce different deformation characteristics.Some application type is the recessed cylinder block of cylinder liner greatly.This replacement scheme is used for this class effective high-pressure gas sealing is provided.
Another alternate embodiment of the present invention is shown in Fig. 8 and 9.Fig. 8 has represented this embodiment's original loose assembled components, and Fig. 9 has then represented the O type ring transverse section after the distortion after applying the cylinder bolt preload.This embodiment's of the present invention structure has been cancelled groove on the bottom surface of cylinder head 50, and a groove 51 is only arranged on the end face of cylinder jacket casing 52.The structure of this cylinder jacket casing 52 is different from the structure of preferential embodiment's cylinder liner.This cylinder jacket casing 52 has a structure, comprises groove 51, the first side wall 53 of groove and one second sidewall 55 of groove, and the latter is short and wide than the former.Though the first side wall 53 of groove is at choice in the present embodiment, yet this key element will be discussed as a part of the present invention.
With respect to another characteristics of this alternate embodiment that Fig. 8 discussed is that the recline position cylinder jacket casing 52 of cylinder block 15 of second sidewall 55 at groove departs from cylinder block 15 a little.The relation of cylinder jacket casing 52 end faces and cylinder block 15 end faces depends on the selection of O type ring diameter, the distortion of O type annular groove section, the thickness of cylinder liner groove depth and cylinder head gasket body.Yet the size of groove two side reaches and the relation of cylinder block can change by any way of simplifying gas seal structure and feature of the present invention.
Referring now to Fig. 9, when applying the clamping load, O type annular groove section becomes flat distortion, abuts in interface 63 on the surface of cylinder head 50, abuts on the cylinder grooving 51 with interface 65.Assembling the interface 63 in place and the tight way of contact at 65 places, jointing edge is put the radial constraint at 61 places, for the high-pressure gas in this alternate embodiment provides effective seal.The degree of depth of cylinder grooving 51 can be in 0.4 to 0.9 times of scope of O type ring 4 diameters, and for example, if the diameter of O type 4 is 0.5 inch, then the degree of depth of cylinder grooving 51 just is between 0.2 inch to 0.45 inch.The width of cylinder grooving 51 is slightly larger than the diameter of O type ring 4, does not contact the two side of groove to allow O type ring 4 to be shelved in the cylinder grooving 51.
Referring now to Figure 10, this has represented a preferential gas seal of the present invention, comprises that one is installed in the cylinder liner 102 in the cylinder block 103, is shaped on a groove 104 thereon on the plane 106, extend from diapire 107 two side 108 of groove and 110, contacts with the face 112 of cylinder head 114.The same with aforesaid several embodiments, cylinder head gasket 105 and O type ring 116 are housed, O type ring 116 is installed in the groove 104, constitutes a gas seal around cylinder liner 102 top periphery.When cylinder head 114 being applied an assembling load, the thickness of metal O type ring 116 transverse section is compressed to the degree of depth of the groove 104 that forms in cylinder liner 102.The sealing load that puts on cylinder head 114 is determined by the degree of depth of the groove 104 that forms in cylinder liner 102 and the load flexural property of metal O type ring 116.In addition, radially outward cell wall 110 comprises that one first basic vertical component effect 118 and one are from first rake that extends radially outwardly 120.Form a seamed edge 122 betwixt, it provides radial constraint to O type ring 116, has guaranteed reliable gas sealing.
With regard to structure shown in Figure 10, during engine running, the thermal walking of cylinder head 114 and cylinder liner 102 produces and has increased contact force between cylinder sleeve and the cylinder cap.When assembling, because each side wall portion 108 of the groove 104 that is formed by the extension part 109 and 111 of cylinder sleeve 102 contacts with 110 stretching, extensions and with cylinder head 114, the thermal stress that acts on the O type ring seal arrangement just reduces minimum, thereby prevented the excessive distortion of O type ring seal arrangement, this excessive deformation can cause seal arrangement to leak.
Therefore, provide a kind of effective high-pressure gas seal arrangement with regard to some embodiments gas seal discussed above, its durable being easy to is again made.And with regard to gas seal shown in Figure 10, itself is protected seal arrangement, and avoids during internal combustion engine operation because the excessive stresses that the thermal expansion of cylinder sleeve and cylinder cap causes.Therefore, the present invention has characteristics and the advantage that some be can not find in above-mentioned prior art seal arrangement.
The industry practicality
The wire loop sealing device can be used in any environment of main formation effective sealing. This kind Special gas seal even more be applicable to the high pressure occasion of exist leaking possibility, this mechanism Can be applicable to any environment of preventing that mainly gas or liquid from leaking under excessive temperature and pressure In.
Claims (38)
1. one kind in order to the gas seal of high-pressure gas at least one cylinder of sealing internal-combustion engine, comprising:
A cylinder block forms one or more cylinder barrels therein;
A cylinder head has an end face and a bottom surface, becomes to be rigidly connected with cylinder block, is shaped on a groove on its bottom surface;
Cylinder liner with an end face is installed at least one cylinder barrel that forms in the cylinder block, and described cylinder liner is shaped on a complementary groove on end face;
A yielding metal sealing device has the circular transverse section, is placed on the cylinder head formed groove and between the complementary groove that forms on the cylinder liner, and and each seamed edge of described groove contact;
A cylinder head gasket is placed between cylinder head and the cylinder block;
When cylinder head being fastened on the described cylinder, described seal arrangement by compression, form the radially contiguity constraint point of a plurality of and described seamed edge, the part of described seal arrangement becomes flat distortion, abut on the end face of the bottom surface of cylinder head and cylinder liner, its compression height is different from the compressed thickness of cylinder head gasket.
2. by the described seal arrangement of claim 1, it is characterized in that the described groove that forms is inverted V-arrangement on cylinder head, and the complementary groove that forms is a V-arrangement on cylinder liner.
3. by the described seal arrangement of claim 1, it is characterized in that the described groove that forms is inverted rectangle on cylinder head, and the complementary groove that forms is a rectangle on cylinder liner.
4. by the described seal arrangement of claim 1, it is characterized in that the described groove that on cylinder head, forms for being upside down in semicircle, and the complementary groove that forms is semicircle on cylinder liner.
5. by the described seal arrangement of claim 1, it is characterized in that described cylinder liner installs lowlyer than plane, cylinder block top.
6. by the described seal arrangement of claim 1, it is characterized in that described seal arrangement is by yielding metal O type ring.
7. by the described seal arrangement of claim 6, it is characterized in that described yielding metal comprises at least a in carbon steel, alloyed steel and the Cuprum alloy.
8. by the described seal arrangement of claim 7, it is characterized in that described yielding metal is through heat treatment.
9. by the described seal arrangement of claim 6, it is characterized in that also comprising a cylinder head gasket that is installed between cylinder head and the cylinder block.
10. by the described seal arrangement of claim 9, it is characterized in that the diameter of described seal arrangement is in 1.2 to 2.0 times the scope of cylinder head gasket thickness.
11., it is characterized in that described V-shaped groove and inverted V-shaped groove comprise one 60 ° to 120 ° angle by the described seal arrangement of claim 2.
12., it is characterized in that the shape of described groove on cylinder head is different from the shape of the groove on cylinder liner by the described seal arrangement of claim 1.
13., it is characterized in that described O type ring comprises the inner core of a band external coating by the described seal arrangement of claim 6.
14., it is characterized in that described external coating is a kind of coat of metal by the described seal arrangement of claim 13.
15. the gas seal in order to the high-pressure gas at least one cylinder of sealing internal-combustion engine comprises:
A cylinder block forms one or more cylinder barrels therein;
A cylinder head has an end face and a bottom surface, becomes to be rigidly connected with cylinder block;
A cylinder head gasket is installed between the cylinder block and head, to strengthen sealing therebetween;
Cylinder liner with an end face, press fit at least one cylinder barrel that in cylinder block, forms, described cylinder liner has the bar groove on its end face, described groove has a first side wall and one second sidewall, the latter's height is greater than the latter's height, second sidewall cylinder body that reclines, and deviate from cylinder body;
One is placed in metal O type ring in the groove that forms and second sidewall of groove reclines on cylinder liner;
When cylinder head being fastened on the described cylinder, O type ring forms at least three dot encapsulations by compression.
16., it is characterized in that described O type ring comprises a yielding metal by the described seal arrangement of claim 15.
17. by the described seal arrangement of claim 16, it is characterized in that described yielding metal comprises at least a in carbon steel, alloyed steel and the Cuprum alloy.
18., it is characterized in that described yielding metal is through heat treatment by the described seal arrangement of claim 16.
19. by the described seal arrangement of claim 15, the diameter that it is characterized in that described O type ring is 1.2 to 2.0 times of cylinder head gasket thickness.
20., it is characterized in that described O type ring comprises the inner core of a band external coating by the described seal arrangement of claim 15.
21., it is characterized in that described external coating is the coat of metal by the described seal arrangement of claim 20.
22. the gas seal in order to the high-pressure gas at least one cylinder of sealing internal-combustion engine comprises:
A cylinder block forms one or more cylinder barrels therein;
A cylinder head has an end face and a bottom surface, becomes to be rigidly connected with cylinder block;
A cylinder head gasket that is installed between the cylinder block and head is in order to strengthen sealing therebetween;
Cylinder liner with an end face, press fit at least one cylinder barrel that in cylinder block, forms, described cylinder liner has a groove on its end face, described groove has one second sidewall of a first side wall, second sidewall be positioned at the first side wall radially outside, and have one first roughly vertical component effect and one second rake;
A metal O type ring that is placed in the groove that forms on the cylinder liner, at least one in described O type ring and the described groove two side reclines;
When cylinder head being fastened on the described cylinder, described O type ring forms at least three dot encapsulations by compression.
23., it is characterized in that described O type ring comprises a kind of yielding metal by the described seal arrangement of claim 21.
24. by the described seal arrangement of claim 23, it is characterized in that described yielding metal comprises at least a just and in the Cuprum alloy of carbon steel, alloy.
25., it is characterized in that described yielding metal is through heat treatment by the described seal arrangement of claim 24.
26. by the described seal arrangement of claim 22, the diameter that it is characterized in that described O type ring is 1.2 to 2.0 times of cylinder head gasket thickness.
27., it is characterized in that described O type ring comprises the inner core of a band external coating by the described seal arrangement of claim 22.
28., it is characterized in that described external coating is the coat of metal by the described seal arrangement of claim 27.
29., it is characterized in that also comprising one at first section of second sidewall and the circumference seamed edge between second section by the described seal arrangement of claim 22.
30. by the described seal arrangement of claim 22, it is characterized in that a point in described 3 contacts is the contact between described O type ring and the described seamed edge.
31., it is characterized in that the end face of cylinder sleeve and the bottom surface of cylinder cap contact by the described seal arrangement of claim 22.
32., it is characterized in that described groove is divided into first and second part with the end face of cylinder liner by the described seal arrangement of claim 31.
33., it is characterized in that first and second part of described end face contacts with cylinder head by the described seal arrangement of claim 32.
34., it is characterized in that described second portion tilts with respect to first portion's radially outward by the described seal arrangement of claim 22.
35. in internal-combustion engine, a kind of gas seal in order to the sealed high pressure combustion gas comprises:
One has the inner core of circular section roughly, and described inner core is made by the first yielding metallic material;
An external coating is made by the material that is different from inner core;
The part of described external coating and internal-combustion engine adapts, with the sealing combustion gas.
36. by the described seal arrangement of claim 35, it is characterized in that described yielding metal comprises at least a in carbon steel, alloyed steel and the Cuprum alloy.
37., it is characterized in that described yielding metal is through heat treatment by the described seal arrangement of claim 36.
38., it is characterized in that described external coating is the coat of metal by the described seal arrangement of claim 35.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97191591 CN1207164A (en) | 1996-09-16 | 1997-09-11 | Combustion gas seal for an internal combustion engine |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/714,766 | 1996-09-16 | ||
| US08/922,569 | 1997-09-03 | ||
| CN 97191591 CN1207164A (en) | 1996-09-16 | 1997-09-11 | Combustion gas seal for an internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1207164A true CN1207164A (en) | 1999-02-03 |
Family
ID=5179046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97191591 Pending CN1207164A (en) | 1996-09-16 | 1997-09-11 | Combustion gas seal for an internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1207164A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257934A (en) * | 2015-11-04 | 2016-01-20 | 江苏贝特管件有限公司 | End face sealing structure used for rotary compensator and rotary compensator |
| CN106461082A (en) * | 2014-05-08 | 2017-02-22 | Nok株式会社 | Gasket and sealing structure |
| CN109139910A (en) * | 2018-10-16 | 2019-01-04 | 中国航发南方工业有限公司 | High temperature position big end face seals and method |
| CN111720567A (en) * | 2020-06-10 | 2020-09-29 | 肯卓自控工程(江苏)有限公司 | Pressure balance type sleeve regulating valve core seat sealing structure |
| CN112879386A (en) * | 2021-02-25 | 2021-06-01 | 包头钢铁（集团）有限责任公司 | Method for blocking oil leakage on joint surface of oil cylinder |
-
1997
- 1997-09-11 CN CN 97191591 patent/CN1207164A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106461082A (en) * | 2014-05-08 | 2017-02-22 | Nok株式会社 | Gasket and sealing structure |
| CN106461082B (en) * | 2014-05-08 | 2019-11-22 | Nok株式会社 | Sealing ring and sealing structure |
| CN105257934A (en) * | 2015-11-04 | 2016-01-20 | 江苏贝特管件有限公司 | End face sealing structure used for rotary compensator and rotary compensator |
| CN109139910A (en) * | 2018-10-16 | 2019-01-04 | 中国航发南方工业有限公司 | High temperature position big end face seals and method |
| CN111720567A (en) * | 2020-06-10 | 2020-09-29 | 肯卓自控工程(江苏)有限公司 | Pressure balance type sleeve regulating valve core seat sealing structure |
| CN112879386A (en) * | 2021-02-25 | 2021-06-01 | 包头钢铁（集团）有限责任公司 | Method for blocking oil leakage on joint surface of oil cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6036194A (en) | Combustion gas seal for an internal combustion engine | |
| WO1998011365A9 (en) | Combustion gas seal for an internal combustion engine | |
| CN1106518C (en) | Stamped sealing arrangement for flat flanged joint | |
| EP0531076B1 (en) | Metal gasket and production method therefor | |
| US7261246B2 (en) | Sealing element and holding-down clamp for a fuel injector | |
| JP2844501B2 (en) | Metal gasket and manufacturing method thereof | |
| CN1081306C (en) | Metallilc gasket | |
| GB2189853A (en) | Reciprocating engine | |
| US20030151210A1 (en) | Metal gasket | |
| JP2520352Y2 (en) | Head gasket | |
| KR20090035413A (en) | Piston ring of reciprocating engine | |
| JPS59131748A (en) | Piston for internal combustion engine | |
| US5794943A (en) | Piston rings particularly suited for use with ceramic matrix composite pistons and cylinders | |
| US5010853A (en) | Cylinder head sealing element for reciprocating piston engines | |
| EP0494801A1 (en) | Internal combustion engine and metallic gasket for use therein | |
| EP1387113A3 (en) | Metal gasket with a seal ring | |
| CN1207164A (en) | Combustion gas seal for an internal combustion engine | |
| US10094331B2 (en) | Cylinder head gasket | |
| US5752480A (en) | Device for sealing a combustion chamber of a combustion engine | |
| CN1071407C (en) | Sealing sheet of cylinder cover | |
| US5934682A (en) | Head gasket with preflattened wire rings and method of making and using same | |
| CA2067393A1 (en) | Cylinder head/cylinder sealing device for a reciprocating pressurized gas machine | |
| US20130082444A1 (en) | Service Gasket For Internal Combustion Engine And Method | |
| EP0695897B1 (en) | Metal gasket for swirl chamber type engines | |
| RU2156905C1 (en) | Piston ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |