CN114233509B - Crankshaft front oil seal assembly for automobile - Google Patents
Crankshaft front oil seal assembly for automobile Download PDFInfo
- Publication number
- CN114233509B CN114233509B CN202111562890.1A CN202111562890A CN114233509B CN 114233509 B CN114233509 B CN 114233509B CN 202111562890 A CN202111562890 A CN 202111562890A CN 114233509 B CN114233509 B CN 114233509B
- Authority
- CN
- China
- Prior art keywords
- oil seal
- oil
- ring
- mounting seat
- blanket
- 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.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 238000009434 installation Methods 0.000 abstract description 10
- 230000003139 buffering effect Effects 0.000 abstract description 6
- 230000032683 aging Effects 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 146
- 239000000428 dust Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000004026 adhesive bonding Methods 0.000 description 4
- 239000002991 molded plastic Substances 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000010425 asbestos Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The invention relates to a front crankshaft oil seal assembly for an automobile, belongs to the technical field of engines, and solves the problem of oil seepage after oil seal aging in the prior art. This oil blanket assembly before bent axle for car contains oil blanket and oil blanket lid, and the oil blanket is covered and is equipped with the mount pad of fixing the oil blanket installation on the oil blanket, and the mount pad is equipped with the buffering face in the one side with the oil blanket contact, and the buffering face makes the mount pad be close to the height that the height of one side of oil blanket lid center was less than the height of one side of mount pad oil blanket lid center. The buffer surface is formed into a space for yielding, when the oil seal is installed, the outer side of the oil seal and the outer side of the installation seat are mutually abutted to form an assembly relation, and the inner side of the oil seal is connected with a sealing lip crankshaft to form a seal.
Description
Technical Field
The invention belongs to the technical field of sealing, and particularly relates to a front crankshaft oil seal assembly for an automobile.
Background
In order to prevent oil leakage, the front oil seal assembly of the engine crankshaft generally adopts an asbestos packing, an oil thrower and an oil return thread structure. One reason is that the asbestos packing is relatively low in cost and convenient to disassemble and assemble. But his performance is not stable enough, not elastic, has high requirements for repair and assembly techniques, and cannot effectively absorb shock when the crankshaft rotates at high speed.
The invention patent with the publication number of CN106246404B discloses a crankshaft oil seal cover plate, which comprises an oil seal support and an oil seal piece, wherein the oil seal support comprises a support side surface and a support bottom surface, the support side surface is in contact with an engine cylinder body, the support bottom surface is in contact with an oil pan, a mounting hole is formed in the oil seal support, the oil seal piece is arranged in the mounting hole, the oil seal support is integrally injection-molded by glass fiber reinforced plastic, bolt holes are formed in the support side surface and the support bottom surface, and hollow metal pins are integrated in the bolt holes.
Among the above-mentioned prior art, realized the lightweight, easy manufacturing, with low costs of oil blanket lid, but the oil blanket still can be because of wearing and tearing, hardening, deformation, inefficacy under impact load and the effect of time, can make bent axle elasticity variation, the bent axle leads to the surface abrasion with the poor contact of oil blanket lid, does not have the problem of oil return groove, terminal surface blade structure and finally leads to the oil seepage.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a front crankshaft oil seal assembly with a buffer surface for prolonging the deformation life of an oil seal after aging.
The aim of the invention can be achieved by the following technical scheme: the utility model provides an oil blanket assembly before bent axle for car, contains oil blanket and oil blanket lid, the bent axle pass the center of oil blanket lid, the oil blanket be used for sealed oil blanket lid and bent axle, the oil blanket cover and be equipped with the mount pad that fixes the oil blanket installation on the oil blanket, the mount pad be equipped with the buffering face in the one side with the oil blanket contact, the buffering face make the mount pad be close to the height that the height of one side of oil blanket lid center one side is less than the mount pad oil blanket lid center.
The buffer surface is formed into a space for giving way, when the oil seal is installed on the installation seat, the outer side of the oil seal and the outer side of the installation seat are mutually abutted to form an assembly relation, the inner side of the oil seal is provided with a sealing lip, the sealing lip is tightly connected with the crankshaft to form a seal, and after the installation of the oil seal, even if shaking, aging and the like are generated, the sealing lip forms extrusion with the installation seat, the sealing lip can be ensured to have enough space, and the sealing lip and the installation seat are prevented from forming interference to influence the sealing effect of the sealing lip.
In the front crankshaft oil seal assembly for the automobile, the buffer surface is a chamfer with a straight section. The right angle is changed into an obtuse angle by the chamfer, so that the oil seal is not damaged due to the sharp right angle after losing elasticity and deforming after aging and hardening and contacting with the inner diameter edge of the mounting seat; and the internal diameter of the buffer surface is smaller than the internal diameter of the contact part between the mounting seat and the oil seal, namely the oil seal is completely mounted in the mounting seat, and the contact between the oil seal and the circumferential direction of the mounting seat at the first time after the strain is effectively avoided on the premise that the contact between the oil seal and the crankshaft is not influenced.
In the front crankshaft oil seal assembly for the automobile, the buffer surface is a round angle with an arc-shaped section.
In the front crankshaft oil seal assembly for the automobile, the section of the buffer surface is in a concave arc shape.
In the front crankshaft oil seal assembly for the automobile, the buffer surface is a buffer step lower than the mounting seat. The step-shaped buffer surface is still right-angled, and is stepped on the premise of forming a yielding space, so that the processing is convenient.
In the front crankshaft oil seal assembly for the automobile, the mounting seat is further provided with a small jump stage outside the buffer surface.
In the front crankshaft oil seal assembly for the automobile, the inner wall, close to the center, of the mounting seat is provided with the pouring gate abdication part. The design of this portion of stepping down is used for regard as the mouth of gluing when the mould is moulded plastics, and the position of the mouth of gluing after the product shaping is located the portion of stepping down, so the runner fracture department that produces after the product is moulded plastics is hidden in the mount pad and is close to the center inboard, does not influence product aesthetic property, and the runner trace also can not bring the influence to bent axle and oil blanket assembly simultaneously.
In the front crankshaft oil seal assembly for the automobile, the oil seal comprises an outer ring and an inner ring, the inner diameter of the smallest part of the inner ring is smaller than the inner diameter of the mounting seat, and the inner ring and the outer ring are connected through the bottom of the oil seal and hollow in the middle. The crankshaft is divided into an inner ring and an outer ring, and the inner ring has the function of a sealing lip, in particular to extend the space.
In the front crankshaft oil seal assembly for the automobile, the outer side of the outer ring is also provided with a sealing ring. The outside of the outer ring is in direct contact with the oil seal cover, and the sealing ring is used for preventing the lubricating oil in the outer ring from leaking out of the oil seal.
In the crankshaft front oil seal assembly for the automobile, the outer side of the outer ring is also provided with the positioning ring, the positioning ring is arranged on one side of the sealing ring, which is close to the mounting seat, and the positioning ring is also provided with the positioning groove in the axial direction. The quantity of constant head tank is 6, along holding ring circumference evenly distributed, and the fluting direction is axial, six axial constant head tanks are used for preventing the circumferential rotation of oil blanket.
In the front oil seal assembly of the automobile crankshaft, the inner ring gradually contracts from inside to outside in the axial direction. The inner ring gradually contracts and gradually clings to the crankshaft so as to realize the sealing effect.
In the front oil seal assembly of the automobile crankshaft, the inner side of the inner ring is provided with the threaded ring, and the threaded ring is used for reducing deformation generated by direct contact between the inner side of the inner ring and the crankshaft.
In the front crankshaft oil seal assembly for the automobile, a corrugated oil return line is arranged on the inner side of the inner ring. The oil return line has the function of oil return on one hand and improving the axial ductility of the inner ring on the other hand, so that the sealing performance is not affected when the inner ring slightly deforms.
In the front crankshaft oil seal assembly for the automobile, the framework is further arranged at one side of the installation seat at the bottom of the oil seal, and the framework is a metal framework and plays a role in supporting and qualitative.
In the front crankshaft oil seal assembly for the automobile, the dust-proof lip is arranged at the bottom of the oil seal at the other side opposite to the mounting seat. The dustproof lip is used for preventing dust outside the oil seal from entering the oil seal and affecting the precision of the crankshaft.
In the front crankshaft oil seal assembly for the automobile, the mounting seat is provided with the outer ring mounting groove for fixing the outer ring.
In the front crankshaft oil seal assembly for the automobile, the mounting seat is also provided with grooves in the circumferential direction. The inner diameter of the groove corresponds to a hollow groove formed by hollowness between the outer ring and the inner ring of the oil seal.
In the front crankshaft oil seal assembly for the automobile, the oil seal cover is provided with the dismounting hole, and the dismounting hole is used for dismounting the oil seal.
In the front crankshaft oil seal assembly for the automobile, the oil seal cover is further provided with the I-shaped bushing used for installing the oil seal cover on the crankshaft oil seal assembly.
In the front crankshaft oil seal assembly for the automobile, the oil seal cover further comprises an O-shaped ring used for sealing the outer ring of the oil seal cover and the crankshaft oil seal assembly, and the oil seal cover is provided with an O-shaped ring mounting groove used for mounting the O-shaped ring.
Compared with the prior art, the invention has the following advantages:
1. The buffer surface is arranged on one surface of the oil seal cover mounting seat, which is in contact with the oil seal, so that the buffer surface is utilized to avoid direct contact between the mounting seat and the oil seal, and the oil seal has longer service life.
2. The inner wall of the mounting seat is provided with the pouring gate abdication part, so that the injection molding process is considered, interference with the crankshaft is avoided, and better working benefit is achieved.
3. The oil seal is arranged as an inner ring and an outer ring, has better expansion space and ductility on the premise of playing a sealing role, and has longer service life.
4. The crankshaft front oil seal assembly is formed by integrally injection molding a body and an I-shaped bushing and then is pressed together with an oil seal; the I-shaped bushing prevents the body from being broken under a small force, and has longer service life and economy.
Drawings
FIG. 1 is a schematic cross-sectional view of the assembled structure of the present invention;
FIG. 2 is a schematic view of an oil seal according to the present invention;
FIG. 3 is a schematic view of the oil seal cover of the present invention;
Fig. 4 is a schematic view of the assembled structure of the present invention.
In the figure, 1, an oil seal; 11. an outer ring; 111. a seal ring; 112. a positioning ring; 113. a positioning groove; 12. an inner ring; 121. an oil return line; 13. a dust lip; 2. an oil seal cover; 3. a mounting base; 31. a buffer surface; 32. gate abdication part.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Specific example 1 is shown in fig. 1-4: the utility model provides an oil blanket 1 assembly before bent axle for car, contains oil blanket 1 and oil blanket lid 2, the bent axle pass the center of oil blanket lid 2, oil blanket 1 be used for sealed oil blanket lid 2 and bent axle, oil blanket lid 2 on be equipped with the mount pad 3 of fixing oil blanket 1 on oil blanket lid 2, mount pad 3 be equipped with buffering face 31 in the one side that contacts with oil blanket 1, buffering face 31 make the mount pad 3 be close to the height that the height of the one side of oil blanket lid 2 center was less than the one side of mount pad 3 oil blanket lid 2 center. The buffer surface 31 forms the space of stepping down for when the oil blanket 1 is installed on mount pad 3, the oil blanket 1 outside and the mount pad 3 outside are mutually supported and are formed the assembly relation, and the oil blanket 1 inboard is the seal lip, and the seal lip hugs closely the bent axle and connects and form sealedly, because the space of stepping down exists, the seal lip is after the installation, even if produce to rock, ageing etc. influence makes and forms the extrusion between oil blanket 1 and the mount pad 3, also can guarantee that the seal lip has sufficient space, avoid seal lip and mount pad 3 to form the sealed effect of interference and influence seal lip. The buffer surface 31 is a chamfer having a straight section. The right angle is changed into an obtuse angle by the chamfer, so that the oil seal 1 is not damaged by the sharp right angle after the oil seal 1 loses elasticity to deform and contacts with the inner diameter edge of the mounting seat 3 even if aged and hardened; and the internal diameter of the buffer surface 31 is smaller than the internal diameter of the contact part between the mounting seat 3 and the oil seal 1, namely, the oil seal 1 is completely mounted in the mounting seat 3, and the contact between the oil seal 1 and the circumferential direction of the mounting seat 3 at the first time after the strain is effectively avoided on the premise that the contact between the oil seal 1 and the crankshaft is not influenced.
As shown in fig. 3: the inner wall of the mounting seat 3 near the center is provided with a gate relief portion 32. The design of this portion of stepping down is used for regard as the mouth of gluing when the mould is moulded plastics, and the position of the mouth of gluing is located the portion of stepping down after the product shaping, so the runner fracture department that produces after the product is moulded plastics is hidden in mount pad 3 and is close to the center inboard, does not influence product aesthetic property, and the runner trace also can not bring the influence to bent axle and the assembly of oil blanket 1 simultaneously. The oil seal cover 2 is provided with a disassembly hole which is used for disassembling the oil seal 1. An I-shaped bushing for mounting the oil seal cover 2 to the crankshaft oil seal 1 assembly is also provided. The crankshaft oil seal assembly further comprises an O-shaped ring used for sealing the assembly of the outer ring of the oil seal cover 2 and the crankshaft oil seal 1, and the oil seal cover 2 is provided with an O-shaped ring mounting groove used for mounting the O-shaped ring.
As shown in fig. 2: the oil seal 1 comprises an outer ring 11 and an inner ring 12, wherein the inner diameter of the smallest part of the inner ring 12 is smaller than the inner diameter of the mounting seat 3, and the inner ring 12 and the outer ring 11 are connected through the bottom of the oil seal 1 and hollow in the middle. The crankshaft is divided into an inner ring 11 and an outer ring 12 which, in particular, has the function of an expanded space under the function of a sealing lip. The outer side of the outer ring 11 is also provided with a sealing ring 111. The outer ring 11 is in direct contact with the oil seal cover 2 at the outside, and the seal ring 111 serves to prevent the inside lubricating oil from leaking out of the oil seal 1. The outer side of the outer ring 11 is also provided with a positioning ring 112, the positioning ring 112 is arranged on one side of the sealing ring 111 close to the mounting seat 3, and the positioning ring 112 is also provided with a positioning groove 113 in the axial direction. The number of the positioning grooves 113 is 6, the positioning grooves 113 are uniformly distributed along the circumferential direction of the positioning ring 112, the slotting direction is axial, and the six axial positioning grooves 113 are used for preventing the circumferential rotation of the oil seal 1. The inner ring 12 gradually tapers from the inside to the outside in the axial direction. The inner ring 12 gradually contracts and gradually sticks to the crankshaft to achieve the sealing effect. The inner side of the inner ring 12 is provided with a corrugated oil return line 121. The oil return line 121 has the function of oil return on one hand, and on the other hand, the function of improving the axial ductility of the inner ring 12, so that the sealing performance is not affected when the inner ring 12 is slightly deformed, and the oil return line 121 is used for returning the engine oil in the oil seal 1 assembly to the inside, so that the engine oil cannot overflow. The sealing bottom is also provided with a framework at one side of the mounting seat 3, and the framework is a metal framework and plays a role in supporting and qualitative. The bottom of the oil seal 1 is provided with a dust lip 13 at the other side opposite to the mounting seat 3. Dust outside the oil seal 1 is prevented from entering the oil seal 1 so as to influence the precision of the crankshaft.
In embodiment 2, the buffer surface 31 may be a rounded corner with an arc shape, or may be a concave arc shape, or may even be a buffer step lower than the mounting seat.
The installation process of the invention is as follows: the oil seal cover 2 and the oil seal 1 which are formed by injection molding are pressed by a tool, the positioning groove 113 on the outer ring 11 is embedded into the mounting seat 3 to play a role in positioning, the oil seal cover 2 and the oil seal 1 are assembled together and then inserted into the crankshaft, the inner wall of the inner ring 12 of the oil seal 1 is attached to the crankshaft, the dust lip 13 is attached to the crankshaft, and the outer wall of the outer ring 11 is attached to the mounting seat 3 of the oil seal cover 2 to finish sealing.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (3)
1. The utility model provides an oil blanket assembly before bent axle for car, contains oil blanket (1) and oil blanket lid (2), the bent axle pass the center of oil blanket lid (2), oil blanket (1) be used for sealed oil blanket lid (2) and bent axle, its characterized in that: the oil seal cover (2) is provided with a mounting seat (3) for mounting and fixing the oil seal (1) on the oil seal cover (2), one surface of the mounting seat (3) contacted with the oil seal (1) is provided with a buffer surface (31), and the buffer surface (31) enables the height of the mounting seat (3) close to the center of the oil seal cover (2) to be lower than the height of the mounting seat (3) away from the center of the oil seal cover (2);
The buffer surface (31) is a chamfer with a straight section or a round corner with an arc section of the buffer surface (31) or an arc section of the buffer surface (31) with a concave section;
Or the buffer surface (31) is a buffer step lower than the mounting seat;
the oil seal (1) comprises an outer ring (11) and an inner ring (12), the inner diameter of the smallest part of the inner ring (12) is smaller than the inner diameter of the mounting seat (3), and the inner ring (12) is connected with the outer ring (11) through the bottom of the oil seal (1) and is hollow in the middle;
The bottom of the oil seal (1) is provided with a dustproof lip (13) at the other side opposite to the mounting seat (3);
The outer side of the outer ring (11) is also provided with a sealing ring (111);
the inner diameter of the inner ring (12) gradually contracts from inside to outside in the axial direction;
The inner side of the inner ring (12) is provided with a corrugated oil return line (121).
2. The automotive crankshaft front oil seal assembly according to claim 1, wherein: the inner wall of the mounting seat (3) close to the center is provided with a pouring gate abdication part (32).
3. The automotive crankshaft front oil seal assembly according to claim 1, wherein: the outer side of the outer ring (11) is also provided with a positioning ring (112), the positioning ring (112) is arranged on one side of the sealing ring (111) close to the mounting seat (3), and the positioning ring (112) is also provided with a positioning groove (113) in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111562890.1A CN114233509B (en) | 2021-12-20 | 2021-12-20 | Crankshaft front oil seal assembly for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111562890.1A CN114233509B (en) | 2021-12-20 | 2021-12-20 | Crankshaft front oil seal assembly for automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114233509A CN114233509A (en) | 2022-03-25 |
| CN114233509B true CN114233509B (en) | 2024-04-23 |
Family
ID=80759281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111562890.1A Active CN114233509B (en) | 2021-12-20 | 2021-12-20 | Crankshaft front oil seal assembly for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114233509B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201963416U (en) * | 2011-03-18 | 2011-09-07 | 芜湖市中天密封件有限公司 | Engine crankshaft oil seal |
| CN202451297U (en) * | 2012-01-16 | 2012-09-26 | 浙江吉利汽车研究院有限公司 | Automobile crankshaft oil seal positioning structure |
| CN203257896U (en) * | 2013-04-28 | 2013-10-30 | 艾志（南京）环保管接技术股份有限公司 | Split oil seal in staggered wedge-shaped interface form |
| CN105736705A (en) * | 2016-05-05 | 2016-07-06 | 青岛开世密封工业有限公司 | High-horsepower engine crankshaft polytetrafluoroethylene (PTFE) combined oil seal |
| CN106246404A (en) * | 2016-08-16 | 2016-12-21 | 上汽通用汽车有限公司 | Crankshaft oil seal cover plate |
| CN110529282A (en) * | 2019-08-27 | 2019-12-03 | 安徽全柴动力股份有限公司 | A kind of crankshaft after oil seal seat |
| JP2020046044A (en) * | 2018-09-21 | 2020-03-26 | Ntn株式会社 | Hydraulic auto tensioner |
| CN212615065U (en) * | 2020-06-16 | 2021-02-26 | 安徽中鼎橡塑制品有限公司 | Crankshaft front oil seal assembly for automobile |
| CN212839392U (en) * | 2020-08-14 | 2021-03-30 | 浙江欧福密封件有限公司 | Crankshaft oil seal |
-
2021
- 2021-12-20 CN CN202111562890.1A patent/CN114233509B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201963416U (en) * | 2011-03-18 | 2011-09-07 | 芜湖市中天密封件有限公司 | Engine crankshaft oil seal |
| CN202451297U (en) * | 2012-01-16 | 2012-09-26 | 浙江吉利汽车研究院有限公司 | Automobile crankshaft oil seal positioning structure |
| CN203257896U (en) * | 2013-04-28 | 2013-10-30 | 艾志（南京）环保管接技术股份有限公司 | Split oil seal in staggered wedge-shaped interface form |
| CN105736705A (en) * | 2016-05-05 | 2016-07-06 | 青岛开世密封工业有限公司 | High-horsepower engine crankshaft polytetrafluoroethylene (PTFE) combined oil seal |
| CN106246404A (en) * | 2016-08-16 | 2016-12-21 | 上汽通用汽车有限公司 | Crankshaft oil seal cover plate |
| JP2020046044A (en) * | 2018-09-21 | 2020-03-26 | Ntn株式会社 | Hydraulic auto tensioner |
| CN110529282A (en) * | 2019-08-27 | 2019-12-03 | 安徽全柴动力股份有限公司 | A kind of crankshaft after oil seal seat |
| CN212615065U (en) * | 2020-06-16 | 2021-02-26 | 安徽中鼎橡塑制品有限公司 | Crankshaft front oil seal assembly for automobile |
| CN212839392U (en) * | 2020-08-14 | 2021-03-30 | 浙江欧福密封件有限公司 | Crankshaft oil seal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114233509A (en) | 2022-03-25 |
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