CN112128013A - T-shaped joint surface sealing structure - Google Patents
T-shaped joint surface sealing structure Download PDFInfo
- Publication number
- CN112128013A CN112128013A CN202010995523.XA CN202010995523A CN112128013A CN 112128013 A CN112128013 A CN 112128013A CN 202010995523 A CN202010995523 A CN 202010995523A CN 112128013 A CN112128013 A CN 112128013A
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- Prior art keywords
- end surface
- joint
- cylinder
- face
- combination
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- 238000007789 sealing Methods 0.000 title claims abstract description 37
- 239000003292 glue Substances 0.000 claims description 23
- 238000003860 storage Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 abstract description 11
- 230000013011 mating Effects 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 22
- 239000000741 silica gel Substances 0.000 description 22
- 229910002027 silica gel Inorganic materials 0.000 description 22
- 239000003921 oil Substances 0.000 description 12
- 230000008878 coupling Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 9
- 229910001018 Cast iron Inorganic materials 0.000 description 5
- 229920002379 silicone rubber Polymers 0.000 description 5
- 239000004945 silicone rubber Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 239000000565 sealant Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Images
Classifications
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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
-
- 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
- F02F1/00—Cylinders; Cylinder heads
- F02F1/18—Other cylinders
-
- 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
- F02F11/002—Arrangements of sealings in combustion engines involving cylinder heads
-
- 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
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0043—Arrangements of mechanical drive elements
Landscapes
- 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 T-shaped joint surface sealing structure, which relates to the technical field of engine sealing and comprises a gear chamber cover, a cylinder body, a cylinder cover and a cylinder gasket, wherein the same side of the cylinder body and the cylinder cover and the gear chamber cover enclose a gear chamber; the third combination end surface and the fifth combination end surface are respectively vertical to the first combination end surface; the gasket is located between the third and fifth mating end surfaces. The device provided by the invention effectively solves the problem of oil leakage of the T-shaped joint surface of the cylinder body and the cylinder cover due to different thermal expansion coefficients of materials in the existing structure.
Description
Technical Field
The invention relates to the technical field of engine sealing, in particular to a T-shaped joint surface sealing structure.
Background
In an automobile engine structure, a plurality of T-shaped joint surface sealing structures exist, such as T-shaped joint surfaces formed by a cylinder body, a cylinder cover end surface and a gear chamber cover end surface. Due to the problem of structural design, the problem of oil leakage of the T-shaped joint surface is always a difficult problem which puzzles various engine products.
At present, a silicon-coated instant sealing mode is generally adopted for plane sealing, and the principle of silicon sealing is to absorb moisture in air and form a sealing rubber strip by curing at room temperature, so that the sealing effect is achieved. In order to ensure the strength of the adhesive tape and avoid the falling off of the cured adhesive tape, a long rectangular adhesive containing structure is usually added in the middle of the sealing surface during design. This is true even for the T-shaped joint surface sealing structure. The structure usually leaks under extreme working conditions, and the method for solving the leakage is to glue the area for multiple times, so that the operation wastes silica gel, the consistency and durability of the product are poor, and the production organization and the quality control of the product are not facilitated. The existing T-junction faces also face the following problems:
1. the flatness of the end face of the T-shaped joint face is usually controlled according to the requirement of +/-0.15 mm, the inconsistency of materials of various parts of the T-shaped joint face is not fully considered, the thermal expansion coefficients of the materials are different, the control requirements of the distance between the end faces are different, when the engine works, the part with the large thermal expansion coefficient greatly extends to polish silica gel coated on the end face of the part, after the engine is cooled, the T-shaped joint face is not sealed by the silica gel, oil seepage is prone to happen, and finally the reworking workload and cost waste of the engine are huge.
2. The sealing surface of the gear chamber cover is usually designed to be a smooth surface or the middle part of the sealing surface is provided with a glue containing groove. The sealing surface of the gear chamber cover is designed to be a smooth surface, the smeared silica gel is almost completely extruded along with the silica gel on the fastening sealing surface of the fastening bolt of the gear chamber cover, and the oil leakage is hardly ensured because the silica gel is not sealed. The design of sealed face middle part has the appearance gluey groove, and such design is also not good, should lean on moisture solidification for silica gel, and the appearance gluey groove at middle part will hardly solidify owing to hardly absorb the moisture, keeps liquid for a long time, can't play effective seal.
3. Generally, the higher the machining roughness of the sealing surfaces of the gear chamber cover and the cylinder cover, the better, and meanwhile, because the aluminum product is better in machining, the surface machining roughness easily reaches Ra0.8 or even Ra0.4. But the surface of the part is too smooth, so that the adhesion of silica gel is not facilitated, the silica gel cannot be adhered, and oil leakage is inevitable.
4. The cylinder body and the cylinder cover are usually sealed through cylinder gaskets, and the cylinder gaskets are usually flush with the end faces of the cylinder body and the cylinder cover. Because the aluminum cylinder cover has large thermal expansion coefficient and the steel cylinder cushion, the aluminum cylinder cover deforms far away from the steel cylinder cushion when the engine works, so that silica gel coated on the end face of the cylinder cushion is greatly pulled loose or broken and cannot be firmly attached to the end face of the cylinder cushion, and the oil of the engine leaks from the position.
5. The joint surface of the cylinder body and the cylinder cover is generally designed to flatly press the cylinder gasket, the end surface of the T-shaped joint surface needs to be coated with silica gel for sealing, the cylinder gasket is originally designed to be thin, and when an engine works, the aluminum cylinder cover is thermally expanded, the silica gel in a gap between the end surface of the cylinder body and the end surface of the cylinder cover without the cylinder gasket is further extruded to be thin, so that the repeated sealant is easily broken and separated, and oil seepage is caused.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a T-shaped joint surface sealing structure which effectively solves the problem of oil leakage of a T-shaped joint surface caused by different thermal expansion coefficients of materials of a cylinder body and a cylinder cover in the prior structure.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a T-shaped joint surface sealing structure is characterized by comprising a gear chamber cover, a cylinder body, a cylinder cover and a cylinder gasket, wherein the same side of the cylinder body and the cylinder cover and the gear chamber cover enclose a gear chamber, the gear chamber cover comprises a first joint end surface, the cylinder body comprises a second joint end surface and a third joint end surface, the cylinder cover comprises a fourth joint end surface and a fifth joint end surface, wherein,
the second combination end face and the fourth combination end face are respectively parallel to the first combination end face, and the distance between the fourth combination end face and the first combination end face is larger than that between the second combination end face and the first combination end face;
the third combination end surface and the fifth combination end surface are respectively vertical to the first combination end surface;
the gasket is located between the third and fifth mating end surfaces.
Furthermore, an inner slope glue storage groove is formed in the intersection of the first combination end face and the inner wall of the gear chamber cover.
Furthermore, the first combining end surface and the fourth combining end surface are provided with first cross reticulate patterns at corresponding positions.
Further, a glue storage groove is further formed in the inner side of the middle of the first combining end face, and the glue storage groove is opposite to the third combining end face and the fifth combining end face.
Further, a chamfer is arranged at the intersection of the third combination end surface and the side wall of the gear chamber.
Further, the fourth joint end face is provided with a second cross reticulate pattern.
Further, a distance between one end of the gasket facing the first coupling end surface and the first coupling end surface is larger than a distance between the fourth coupling end surface and the first coupling end surface.
Further, the gasket is provided in a zigzag shape at an end facing the first coupling end surface.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the T-shaped joint surface sealing structure provided by the invention, the distance between the joint end surfaces of the T-shaped joint surface cylinder body and the cylinder cover and the gear chamber cover is controlled according to the thermal expansion coefficients of the cylinder body and the cylinder cover material, so that oil leakage caused by the fact that glue smeared on the end surfaces is squeezed or pulled to be loosened by the thermal expansion of the cylinder cover when an engine works is avoided;
2. an inner slope glue storage groove is formed at the intersection of the first combination end face and the inner wall of the gear chamber cover, so that after the bolt between the gear chamber cover and the cylinder body and the cylinder cover is tightened, the silica gel coated on the first combination end face of the gear chamber cover is extruded, and a circle of continuously closed glue line is formed on the first combination end face of the gear chamber cover, the second combination end face of the cylinder body and the fourth combination end face of the cylinder cover to play a role in sealing;
3. the first cross reticulate pattern is arranged on the corresponding part of the first combination end surface and the fourth combination end surface, so that the silica gel is firmly attached to the first combination end surface of the gear chamber cover and is not easy to fall off;
4. the glue storage groove is arranged on the inner side of the middle part of the first combination end face and is over against the third combination end face and the fifth combination end face, and because the thermal expansion coefficient of the aluminum cylinder cover is larger than that of the cylinder body made of cast iron material, the deformation of the fifth combination end face of the cylinder cover is larger than that of the third combination end face of the cylinder body when the engine works, and the glue storage groove can prevent the sealant of the T-shaped combination face, which is positioned on the fourth combination end face and the fifth combination end face of the cylinder cover, from being extruded or sheared off to cause oil leakage;
5. a chamfer is arranged at the intersection of the third combination end surface and the side wall of the gear chamber, so that silica gel coated on the T-shaped combination part is extruded, and a circle of sealed gel line is formed among the cylinder body, the cylinder gasket and the cylinder cover to play a role in sealing;
6. the fourth combination end face is provided with second cross reticulate patterns, so that the silica gel is firmly attached to the fourth combination end face of the cylinder cover and is not easy to fall off;
7. the distance between one end of the cylinder pad facing the first combination end face and the first combination end face is larger than the distance between the fourth combination end face and the first combination end face, so that the silica gel is more firmly attached between the cylinder cover and the cylinder body corresponding to the cylinder pad horn and is not easy to fall off;
8. one end of the cylinder pad, which faces the first combination end face, is arranged in a zigzag manner, so that the attachment of silica gel to the horn end face of the cylinder pad can be effectively improved.
Drawings
FIG. 1 is a schematic perspective view of a gear chamber cover, a cylinder body, a cylinder cover and a cylinder gasket structure according to an embodiment of the invention;
FIG. 2 is a schematic structural view of a T-shaped junction surface sealing structure according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion M of FIG. 2;
FIG. 4 is a schematic structural diagram of a gear chamber cover according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view taken along line D of FIG. 4;
FIG. 6 is a schematic structural view of a cylinder according to an embodiment of the present invention;
FIG. 7 is a sectional view taken along line B of FIG. 6;
FIG. 8 is a schematic structural view of a cylinder head according to an embodiment of the present invention;
FIG. 9 is a cross-sectional view taken along line C of FIG. 8;
FIG. 10 is a schematic view of a gasket structure according to an embodiment of the present invention.
In the figure, 1-gear chamber cover, 11-first combined end face, 111-first cross reticulate pattern, 12-inner slope glue storage groove, 13-rectangular glue storage groove, 2-cylinder body, 21-second combined end face, 22-third combined end face, 23-chamfer, 3-cylinder cover, 31-fourth combined end face, 32-fifth combined end face, 311-second cross reticulate pattern, 4-cylinder cushion, 41-claw, 5-positioning pin and 6-gear chamber.
Detailed Description
In order to explain the technical content, the achieved objects and the effects of the present invention in detail, the following description is made in conjunction with the embodiments and the accompanying drawings.
As shown in fig. 1 to 3, a T-shaped joint surface sealing structure includes a gear chamber cover 1, a cylinder body 2, a cylinder cover 3 and a cylinder gasket 4, wherein bosses are respectively arranged on two sides of the same side of the cylinder body 2 and the cylinder cover 3, the same side of the cylinder body 2 and the same side of the cylinder cover 3, a gear chamber is defined by the corresponding bosses and the gear chamber cover 1, the cylinder body 2 is made of cast iron material, and the cylinder cover 3 is made of aluminum material. The gear chamber cover 1 comprises a first combination end surface 11, the cylinder body 2 comprises a second combination end surface 21 and a third combination end surface 22, the cylinder cover 3 comprises a fourth combination end surface 31 and a fifth combination end surface 32, wherein,
the third joint end surface 22 and the fifth joint end surface 32 are respectively perpendicular to the first joint end surface 11;
the second combination end surface 21 and the fourth combination end surface 31 are respectively parallel to the first combination end surface 11, and the first combination end surface 11, the second combination end surface 21, the third combination end surface 22, the fourth combination end surface 31 and the fifth combination end surface 32 form a T-shaped combination surface. The cylinder body 2 and the cylinder cover 3 are respectively sealed and combined through the second combination end face 21, the fourth combination end face 31 and the first combination end face 11 of the gear chamber cover 1 by adopting silica gel; the cylinder body 2 and the cylinder cover 3 are respectively sealed and combined by silica gel through the third combination end surface 22 and the fifth combination end surface 32.
The distance between the fourth joint end face 31 and the first joint end face 11 is greater than the distance between the second joint end face 21 and the first joint end face 11, the difference is H0, and the value of H0 is set according to the thermal expansion coefficients of the cast iron and the aluminum and the actual test results, which are not described herein. Because the thermal expansion coefficient of the aluminum cylinder cover is larger than that of the cylinder body made of cast iron, due to the arrangement of H0, when the engine works, the silicone rubber between the fourth combination end face 31 and the first combination end face 11 is not squeezed or pulled to be loosened to cause oil leakage. In other embodiments, the distance difference H0 between parts made of different materials on the sealing end face in the same direction of the T-shaped joint face can be controlled according to the thermal expansion coefficients of the different materials and the actual test result, so that oil leakage caused by burnishing or pulling and loosening of silica gel coated on the end face due to thermal expansion of the parts when an engine works is avoided.
The cylinder gasket 4 is positioned between the third combination end surface 22 and the fifth combination end surface 32, and a claw 41 is arranged at the corresponding position of the bosses of the cylinder body 2 and the cylinder cover 3.
The positioning among the cylinder cover 3, the cylinder cushion 4 and the cylinder body 2 is realized by controlling the machining size of parts and the positioning pin 5.
Preferably, as shown in fig. 4 and 5, an inner slope glue storage groove 12 is provided at the intersection of the first combining end surface 11 and the inner wall of the gear chamber cover 1, so that after the bolt between the gear chamber cover 1 and the cylinder body 2 and the cylinder cover 3 is tightened, the silica gel coated on the first combining end surface 11 of the gear chamber cover 1 is squeezed, and a circle of continuously closed glue line is formed on the first combining end surface 11 of the gear chamber cover 1, the second combining end surface 21 of the cylinder body 2 and the fourth combining end surface 31 of the cylinder cover 3, thereby achieving a sealing effect.
Preferably, the first cross-hatching 111 is disposed on the first combining end surface 11 and the corresponding portion of the fourth combining end surface 31, so that the silicone rubber is more firmly attached to the first combining end surface 11 of the gear chamber cover 1 and is not easy to fall off.
Preferably, two glue storage grooves 13 are further arranged on the inner side of the middle part of the first combination end surface 11, the length L2 of each glue storage groove 13 is 30mm, the width L1 of each glue storage groove is 5mm, and the depth H2 of each glue storage groove is 3 mm. The glue storage groove 13 is opposite to the third combination end surface 22 and the fifth combination end surface 32, because the thermal expansion coefficient of the aluminum cylinder cover 3 is larger than that of the cylinder body 2 made of cast iron material, the deformation of the fifth combination end surface 32 of the cylinder cover 3 is larger than that of the third combination end surface 22 of the cylinder body 2 when the engine works, and the glue storage groove can prevent the sealant of the T-shaped combination surface positioned on the fourth combination end surface 31 and the fifth combination end surface 32 of the cylinder cover 3 from being extruded or sheared off to cause oil leakage.
Preferably, as shown in fig. 6 and 7, a chamfer 23 is provided at the intersection of the third joint end surface 22 and the side wall of the gear chamber 6, so that the silicone applied to the T-shaped joint is squeezed to form a circle of sealing rubber lines between the cylinder block 2, the cylinder gasket 4 and the cylinder head 3, thereby achieving a sealing effect.
Preferably, as shown in fig. 8 and 9, the fourth joint end surface 31 is provided with a second cross-hatch 311, so that the silicone rubber is more firmly attached to the fourth joint end surface 31 of the cylinder head 3 and is less likely to fall off.
Preferably, the distance between the first coupling end surface 11 and one end of the gasket 4 facing the first coupling end surface 11 (i.e., the end surfaces of the two fillets 41) is greater than the distance between the fourth coupling end surface 31 and the first coupling end surface 11 by a difference of H1, so that the silicone rubber is more firmly attached between the cylinder head 3 and the cylinder block 2 corresponding to the gasket 4 and is less likely to fall off.
Preferably, as shown in fig. 10, the end of the pad 4 facing the first coupling end surface 11 (i.e., the end surfaces of the two horns 41) is zigzag, which can effectively improve the adhesion of the silicone rubber to the end surfaces of the horns 41 of the pad 4.
Although the invention has been described in detail above with reference to specific embodiments, it will be apparent to one skilled in the art that modifications or improvements may be made based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (8)
1. A T-shaped joint surface sealing structure is characterized by comprising a gear chamber cover (1), a cylinder body (2), a cylinder cover (3) and a cylinder cushion (4), wherein the same side of the cylinder body (2) and the cylinder cover (3) and the gear chamber cover (1) enclose a gear chamber (6), the gear chamber cover (1) comprises a first joint end surface (11), the cylinder body (2) comprises a second joint end surface (21) and a third joint end surface (22), the cylinder cover (3) comprises a fourth joint end surface (31) and a fifth joint end surface (32), wherein,
the second combination end surface (21) and the fourth combination end surface (31) are respectively parallel to the first combination end surface (11), and the distance between the fourth combination end surface (31) and the first combination end surface (11) is larger than the distance between the second combination end surface (21) and the first combination end surface (11);
the third combination end surface (22) and the fifth combination end surface (32) are respectively vertical to the first combination end surface (11);
the gasket (4) is located between the third joint end surface (22) and the fifth joint end surface (32).
2. The T-shaped joint surface sealing structure according to claim 1, wherein an inner slope glue storage groove (12) is arranged at the intersection of the first joint end surface (11) and the inner wall of the gear chamber cover (1).
3. The T-shaped joint face seal structure according to claim 1, wherein a first cross-hatch (111) is provided on the first joint end face (11) at a position corresponding to the fourth joint end face (31).
4. The T-shaped joint surface sealing structure according to claim 1, wherein a glue storage groove (13) is further formed in the inner side of the middle of the first joint end surface (11), and the glue storage groove (13) is opposite to the third joint end surface (22) and the fifth joint end surface (32).
5. The T-shaped joint face sealing structure according to claim 1, wherein a chamfer (23) is provided at the intersection of the third joint end face (22) and the side wall of the gear chamber (6).
6. The T-shaped faying surface sealing structure according to claim 1, characterized in that the fourth faying end surface (31) is provided with a second cross-hatch (311).
7. The T-shaped joint surface sealing structure according to claim 1, wherein a distance between the gasket (4) and the first joint end surface (11) at an end facing the first joint end surface (11) is larger than a distance between the fourth joint end surface (31) and the first joint end surface (11).
8. The T-shaped joint face seal structure according to claim 5, wherein the gasket (4) is provided in a zigzag shape at an end facing the first joint end face (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010995523.XA CN112128013A (en) | 2020-09-21 | 2020-09-21 | T-shaped joint surface sealing structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010995523.XA CN112128013A (en) | 2020-09-21 | 2020-09-21 | T-shaped joint surface sealing structure |
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| Publication Number | Publication Date |
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| CN112128013A true CN112128013A (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010995523.XA Pending CN112128013A (en) | 2020-09-21 | 2020-09-21 | T-shaped joint surface sealing structure |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009299735A (en) * | 2008-06-11 | 2009-12-24 | Nok Corp | Sealing device |
| CN203584604U (en) * | 2013-10-09 | 2014-05-07 | 奇瑞汽车股份有限公司 | Three junction surface sealing structure of engine cylinder block |
| JP2014228056A (en) * | 2013-05-22 | 2014-12-08 | トヨタ自動車株式会社 | Head gasket |
| CN110284989A (en) * | 2019-07-19 | 2019-09-27 | 重庆小康工业集团股份有限公司 | The sealing structure and automobile of engine |
| CN213478518U (en) * | 2020-09-21 | 2021-06-18 | 广西玉柴机器股份有限公司 | T-shaped joint surface sealing structure |
-
2020
- 2020-09-21 CN CN202010995523.XA patent/CN112128013A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009299735A (en) * | 2008-06-11 | 2009-12-24 | Nok Corp | Sealing device |
| JP2014228056A (en) * | 2013-05-22 | 2014-12-08 | トヨタ自動車株式会社 | Head gasket |
| CN203584604U (en) * | 2013-10-09 | 2014-05-07 | 奇瑞汽车股份有限公司 | Three junction surface sealing structure of engine cylinder block |
| CN110284989A (en) * | 2019-07-19 | 2019-09-27 | 重庆小康工业集团股份有限公司 | The sealing structure and automobile of engine |
| CN213478518U (en) * | 2020-09-21 | 2021-06-18 | 广西玉柴机器股份有限公司 | T-shaped joint surface sealing structure |
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