CN111120500B - Engine crankshaft, engine and vehicle - Google Patents
Engine crankshaft, engine and vehicle Download PDFInfo
- Publication number
- CN111120500B CN111120500B CN202010028113.8A CN202010028113A CN111120500B CN 111120500 B CN111120500 B CN 111120500B CN 202010028113 A CN202010028113 A CN 202010028113A CN 111120500 B CN111120500 B CN 111120500B
- Authority
- CN
- China
- Prior art keywords
- crankshaft
- flywheel
- gear
- engine
- hole
- 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 description 18
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 12
- 238000009434 installation Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 12
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/06—Crankshafts
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/06—Crankshafts
- F16C3/10—Crankshafts assembled of several parts, e.g. by welding by crimping
- F16C3/12—Crankshafts assembled of several parts, e.g. by welding by crimping releasably connected
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/06—Crankshafts
- F16C3/14—Features relating to lubrication
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/30—Flywheels
- F16F15/315—Flywheels characterised by their supporting arrangement, e.g. mountings, cages, securing inertia member to shaft
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- 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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses an engine crankshaft, an engine and a vehicle. The engine crankshaft comprises a crankshaft body, a crankshaft gear and a flywheel which are sequentially arranged along the axial direction; the crankshaft body, the crankshaft gear and the flywheel are fixed into a whole through flywheel bolts; one end of the crankshaft body in the axial direction is provided with a crankshaft positioning boss, one end of the flywheel in the axial direction is provided with a flywheel positioning boss, a middle positioning through hole is axially penetrated through by the crankshaft gear, and the crankshaft positioning boss and the flywheel positioning boss are inserted into the middle positioning through hole. Through the setting of middle location through-hole, can make crank gear effectively be applied to the assembly process of engine crankshaft, the pore wall of middle location through-hole constitutes the installation respectively and fixes a position the guide surface at axial both ends to cooperate respectively with bent axle body and flywheel grafting, this installation location guide surface plays the guide effect for bent axle body and flywheel assembly are more accurate, easy, can control crank gear and flywheel and other pair gear's tooth side clearance and with the dynamic balance of flywheel well.
Description
Technical Field
The invention relates to the technical field of vehicle engineering, in particular to an engine crankshaft, an engine and a vehicle.
Background
The crank gear of an engine is a key component of the torque output of the engine. The crankshaft body rotates, other gears are driven through the crankshaft gear, and then the whole gear train is driven to rotate, and accessories are driven. However, in the prior art, the crank gear mainly plays a driving role, and is not effectively applied to the assembly process of the engine crank shaft.
Therefore, how to improve the utilization rate of the crank gear in the assembly process of the engine crank is a technical problem that needs to be solved by the person skilled in the art.
Disclosure of Invention
In view of the above, it is an object of the present invention to provide an engine crankshaft which is effectively utilized in an engine crankshaft assembly process. It is another object of the present invention to provide an engine and a vehicle including the engine crankshaft described above, the engine crankshaft of which is effectively utilized in the engine crankshaft assembly process.
In order to achieve the above purpose, the present invention provides the following technical solutions:
an engine crankshaft comprises a crankshaft body, a crankshaft gear and a flywheel which are sequentially arranged along the axial direction; the crankshaft body, the crankshaft gear and the flywheel are fixed into a whole through flywheel bolts; the crankshaft positioning boss is inserted into the middle positioning through hole, and the flywheel positioning boss is inserted into the middle positioning through hole.
Preferably, the crankshaft gear is provided with an annular sealing surface which is axially pressed with the crankshaft body to be in sealing connection.
Preferably, an oil seal mounting surface is arranged on the outer peripheral surface of the crankshaft gear, and a crankshaft rear oil seal is sleeved on the oil seal mounting surface in an interference mode.
Preferably, the flywheel and the crank gear are positioned in time by a first timing positioning pin, and the crank gear and the crank body are positioned in time by a second timing positioning pin.
Preferably, the crankshaft gear is axially penetrated with a pre-assembly hole, and a pre-assembly bolt is connected with the crankshaft gear through the pre-assembly hole to the crankshaft body.
An engine comprising an engine crankshaft as claimed in any one of the preceding claims.
A vehicle comprising an engine as described above.
The invention provides an engine crankshaft which comprises a crankshaft body, a crankshaft gear and a flywheel, wherein the crankshaft body, the crankshaft gear and the flywheel are sequentially arranged along the axial direction; the crankshaft body, the crankshaft gear and the flywheel are fixed into a whole through flywheel bolts; one end of the crankshaft body in the axial direction is provided with a crankshaft positioning boss, one end of the flywheel in the axial direction is provided with a flywheel positioning boss, a middle positioning through hole is axially penetrated through by the crankshaft gear, and the crankshaft positioning boss and the flywheel positioning boss are inserted into the middle positioning through hole.
Through the setting of middle location through-hole, can make crank gear effectively be applied to the assembly process of engine crankshaft, the pore wall of middle location through-hole constitutes the installation respectively and fixes a position the guide surface at axial both ends to cooperate respectively with bent axle body and flywheel grafting, this installation location guide surface plays the guide effect for bent axle body and flywheel assembly are more accurate, easy, can control crank gear and flywheel and other pair gear's tooth side clearance and with the dynamic balance of flywheel well.
The engine comprising the engine crankshaft provided by the invention has the advantage that the engine crankshaft is effectively utilized in the assembly process of the engine crankshaft.
The vehicle comprising the engine provided by the invention has the advantage that the engine crankshaft is effectively utilized in the assembly process of the engine crankshaft.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a left side view of an assembled section of a crankshaft gear and flywheel and a crankshaft body of an engine crankshaft according to the present invention;
FIG. 2 is an assembled rear view of a crankshaft gear and flywheel of an engine crankshaft, and a crankshaft body according to the present invention;
FIG. 3 is an assembled top view of a crankshaft gear and flywheel of an engine crankshaft, and a crankshaft body according to the present invention;
FIG. 4 is a perspective view of the assembly of a crankshaft gear and flywheel of an engine crankshaft and a crankshaft body in accordance with the present invention;
FIG. 5 is a left side view of the assembly of the crankshaft gear and locating pin of the engine crankshaft, the preassembled bolts of the present invention;
FIG. 6 is a rear view of an assembled crank gear and locating pin, preassembled bolts of an engine crankshaft according to the present invention;
FIG. 7 is a left side view of an assembled cross-section of a crankshaft gear and preassembled bolts of an engine crankshaft according to the present invention;
FIG. 8 is a cross-sectional left side view of a crank gear of an engine crankshaft provided in accordance with the present invention prior to assembly of a preassembled bolt;
FIG. 9 is a left side view of a cross-section of a crankshaft gear of an engine according to the present invention;
FIG. 10 is an enlarged view at A of FIG. 9;
fig. 11 is a front view of a crank gear of an engine crankshaft provided by the present invention.
Reference numerals:
The crankshaft rear oil seal 1, the crankshaft gear 2, the oil seal mounting surface 21, the timing positioning pin hole 22, the mounting positioning guide surface 23, the annular sealing surface 24, the middle positioning through hole 25, the pre-assembly hole 26, the first timing positioning pin 3, the crankshaft body 4, the crankshaft positioning boss 41, the flywheel bolt 5, the flywheel 6, the flywheel positioning boss 61, the pre-assembly bolt 7 and the second timing positioning pin 8.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The core of the invention is to provide an engine crankshaft which is effectively utilized during the assembly of the engine crankshaft. Another core of the present invention is to provide an engine and a vehicle including the above engine crankshaft, the engine crankshaft of which is effectively utilized in the engine crankshaft assembling process.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
In one embodiment of the engine crankshaft provided by the present invention, please refer to fig. 1 to 11, which include a crankshaft body 4, a crankshaft gear 2 and a flywheel 6 sequentially disposed along an axial direction. The crank body 4, the crank gear 2 and the flywheel 6 are fixed together through the flywheel bolt 5, and as shown in fig. 1, the flywheel 6, the crank gear 2 and the crank body 4 are fastened together through the flywheel bolt 5. The crankshaft body 4 is provided with a crankshaft positioning boss 41 at one axial end, the flywheel 6 is provided with a flywheel positioning boss 61 at one axial end, the crankshaft gear 2 is provided with a middle positioning through hole 25 in an axial penetrating way, and the crankshaft positioning boss 41 and the flywheel positioning boss 61 are inserted into the middle positioning through hole 25.
By providing the intermediate positioning through-hole 25, the crank gear 2 can be effectively applied to the assembly process of the engine crankshaft. As shown in fig. 1 and 9, two ends of the hole wall of the middle positioning through hole 25 in the axial direction respectively form a mounting positioning guide surface 23 so as to be respectively matched and spliced with the crankshaft body 4 and the flywheel 6, and the mounting positioning guide surface 23 plays a guiding role, so that the assembly of the crankshaft body 4 and the flywheel 6 is more accurate and easier, and the backlash between the crankshaft gear 2 and the flywheel 6 and other paired gears and the dynamic balance between the flywheel 6 can be well controlled.
Further, the ring-shaped sealing surface 24 axially pressed and connected with the crankshaft body 4 is arranged on the crankshaft gear 2, specifically as shown in fig. 10, the flywheel bolt 5 axially presses the crankshaft gear 2 on the crankshaft body 4, and the size of the ring-shaped sealing surface 24 on the crankshaft gear 2 and connected with the crankshaft body 4 can be adaptively set according to the corresponding joint surface on the crankshaft body 4, so as to ensure the sealing effect, thereby effectively preventing the lubricating oil from exuding. Specifically, the annular sealing surface 24 of the crank gear 2 is in snug fit with the annular surface on the crank body 4 for sealing connection. In order to prevent oil leakage, preferably, when the engine is running, the joint surface between the crank gear 2 and the crank body 4 is slightly deformed, and the joint surface pressure is increased by reducing the annular sealing surface 24 under the condition that the moment of the flywheel bolt 5 is unchanged, so that the joint surface is prevented from being slightly deformed, and the lubricating oil is effectively prevented from being leaked. In fig. 9 to 11, the radial width s of the annular sealing surface 24 is s, and the size of the annular sealing surface can be adjusted according to the oil seepage condition by adjusting R1; x is the sealing surface 24 edge depth and this dimension must not be too deep to ensure gear strength.
Further, referring to fig. 1 and 9, an oil seal mounting surface 21 is provided on the outer peripheral surface of the crank gear 2, the oil seal mounting surface 21 is provided with a crank rear oil seal 1 in an interference fit manner, the structure is simple, the assembly is easy, the crank rear oil seal 1 does not need to be mounted on the crank body 4, and the tool is convenient to control the mounting position.
Further, as shown in fig. 1 and 5, the flywheel 6 and the crank gear 2 are positioned in timing by the first timing positioning pin 3, and the crank gear 2 and the crank body 4 are positioned in timing by the second timing positioning pin 8. Through setting up the locating pin hole 22 in timing respectively at crank gear 2 axial both ends, respectively correspond on each locating pin hole 22 in timing and set up first locating pin 3 or second locating pin 8 in timing respectively, can accurate location engine timing, and then accomplish the transmission in timing of crank body 4, crank gear 2 and flywheel 6, can improve assembly efficiency.
Further, referring to fig. 5 to 8, the pre-assembly hole 26 is axially penetrated through the crank gear 2, and the pre-assembly bolt 7 connects the crank gear 2 to the crank body 4 through the pre-assembly hole 26, so that the crank gear 2 is pre-assembled to the crank body 4 in advance through the pre-assembly bolt 7, and then the flywheel bolt 5 is installed, so that the assembly difficulty between the crank body 4 and the crank gear 2 can be further reduced, the crank gear 2 can be prevented from falling off when the flywheel 6 is installed, the assembly process is safer and more reliable, and the operability is better.
The engine crankshaft provided by the embodiment is assembled by sealing and oil sealing at the rear end of the crankshaft, the guiding assembly of the crankshaft body 4 and the flywheel 6 and the timing positioning of the crankshaft gear 2, the pre-assembly of the crank gear 2 and the crank body 4 is integrated on the crank gear 2, so that the structural space of the crank gear 2 is fully utilized, the engine structure is simplified, and the assembly of the engine is facilitated.
In addition to the engine crankshaft, the invention also provides an engine, which comprises the engine crankshaft, and particularly can be the engine crankshaft provided in any embodiment, and the beneficial effects can be correspondingly referred to the above embodiments. The structure of other parts of the engine is referred to in the prior art, and will not be described herein.
In addition to the engine crankshaft and the engine, the invention also provides a vehicle which comprises the engine, and the engine can be provided in any embodiment, and the beneficial effects can be correspondingly referred to the above embodiments. The structure of other parts of the vehicle is referred to in the prior art, and will not be described herein.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The engine crankshaft, the engine and the vehicle provided by the invention are described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (5)
1. An engine crankshaft is characterized by comprising a crankshaft body (4), a crankshaft gear (2) and a flywheel (6) which are sequentially arranged along the axial direction; the crankshaft body (4), the crankshaft gear (2) and the flywheel (6) are fixed into a whole through a flywheel bolt (5); a crankshaft positioning boss (41) is arranged at one axial end of the crankshaft body (4), a flywheel positioning boss (61) is arranged at one axial end of the flywheel (6), a middle positioning through hole (25) is axially formed in the crankshaft gear (2) in a penetrating mode, and the crankshaft positioning boss (41) and the flywheel positioning boss (61) are inserted into the middle positioning through hole (25);
An annular sealing surface (24) which is axially pressed with the crankshaft body (4) to be in sealing connection is arranged on the crankshaft gear (2), the annular sealing surface (24) is matched with the annular surface on the crankshaft body (4) in a fitting manner to be in sealing connection, and when an engine runs, the joint surface of the crankshaft gear (2) and the crankshaft body (4) can slightly deform;
The crankshaft gear (2) is axially penetrated with a pre-assembly hole (26), and a pre-assembly bolt (7) is connected with the crankshaft gear (2) and the crankshaft body (4) through the pre-assembly hole (26) so as to pre-assemble the crankshaft gear (2) into the crankshaft body (4) in advance through the pre-assembly bolt (7)
And then installing the flywheel bolts (5), wherein the crankshaft gear (2) is provided with the preassembly bolts (7) on two sides of the middle positioning through hole (25) respectively.
2. The engine crankshaft according to claim 1, wherein an oil seal mounting surface (21) is arranged on the outer peripheral surface of the crankshaft gear (2), and a crankshaft rear oil seal (1) is sleeved on the oil seal mounting surface (21) in an interference manner.
3. An engine crankshaft according to claim 1, characterized in that the flywheel (6) and the crank gear (2) are positioned in time by a first timing positioning pin (3), and the crank gear (2) and the crank body (4) are positioned in time by a second timing positioning pin (8).
4. An engine comprising the engine crankshaft of any one of claims 1 to 3.
5. A vehicle comprising the engine of claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010028113.8A CN111120500B (en) | 2020-01-10 | 2020-01-10 | Engine crankshaft, engine and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010028113.8A CN111120500B (en) | 2020-01-10 | 2020-01-10 | Engine crankshaft, engine and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111120500A CN111120500A (en) | 2020-05-08 |
| CN111120500B true CN111120500B (en) | 2024-05-24 |
Family
ID=70488599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010028113.8A Active CN111120500B (en) | 2020-01-10 | 2020-01-10 | Engine crankshaft, engine and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111120500B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022226781A1 (en) * | 2021-04-27 | 2022-11-03 | 浙江吉利控股集团有限公司 | Connecting structure for crankshaft and crankshaft gear, assembly method, engine, and vehicle |
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|---|---|---|---|---|
| JP2001037160A (en) * | 1999-07-16 | 2001-02-09 | Kokusan Denki Co Ltd | Generator for driving internal combustion engine |
| CN203670603U (en) * | 2013-12-27 | 2014-06-25 | 中国第一汽车股份有限公司 | Connecting device for crankshaft and flywheel of engine |
| CN104279299A (en) * | 2014-09-22 | 2015-01-14 | 广西玉柴机器股份有限公司 | Multifunctional timing gear |
| CN105387062A (en) * | 2015-12-30 | 2016-03-09 | 广西玉柴机器股份有限公司 | Power transmission shaft of diesel engine |
| CN109983262A (en) * | 2016-11-28 | 2019-07-05 | 斯堪尼亚商用车有限公司 | Rotatable shaft seal for combustion engine |
| CN110578745A (en) * | 2019-10-09 | 2019-12-17 | 河南柴油机重工有限责任公司 | Engine crankshaft thrust device and application |
| CN211474649U (en) * | 2020-01-10 | 2020-09-11 | 安徽华菱汽车有限公司 | Engine crankshaft, engine and vehicle |
-
2020
- 2020-01-10 CN CN202010028113.8A patent/CN111120500B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001037160A (en) * | 1999-07-16 | 2001-02-09 | Kokusan Denki Co Ltd | Generator for driving internal combustion engine |
| CN203670603U (en) * | 2013-12-27 | 2014-06-25 | 中国第一汽车股份有限公司 | Connecting device for crankshaft and flywheel of engine |
| CN104279299A (en) * | 2014-09-22 | 2015-01-14 | 广西玉柴机器股份有限公司 | Multifunctional timing gear |
| CN105387062A (en) * | 2015-12-30 | 2016-03-09 | 广西玉柴机器股份有限公司 | Power transmission shaft of diesel engine |
| CN109983262A (en) * | 2016-11-28 | 2019-07-05 | 斯堪尼亚商用车有限公司 | Rotatable shaft seal for combustion engine |
| CN110578745A (en) * | 2019-10-09 | 2019-12-17 | 河南柴油机重工有限责任公司 | Engine crankshaft thrust device and application |
| CN211474649U (en) * | 2020-01-10 | 2020-09-11 | 安徽华菱汽车有限公司 | Engine crankshaft, engine and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111120500A (en) | 2020-05-08 |
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