CN111219225A - Oil circuit structure of engine, engine and vehicle - Google Patents
Oil circuit structure of engine, engine and vehicle Download PDFInfo
- Publication number
- CN111219225A CN111219225A CN201811420411.0A CN201811420411A CN111219225A CN 111219225 A CN111219225 A CN 111219225A CN 201811420411 A CN201811420411 A CN 201811420411A CN 111219225 A CN111219225 A CN 111219225A
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- Prior art keywords
- inclined hole
- oil
- thrust bearing
- engine
- bearing seat
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/10—Lubrication of valve gear or auxiliaries
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/10—Lubrication of valve gear or auxiliaries
- F01M9/102—Lubrication of valve gear or auxiliaries of camshaft bearings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention discloses an oil circuit structure of an engine, the engine and a vehicle, wherein the oil circuit structure of the engine comprises: the cylinder cover main oil gallery is arranged in a cylinder cover of the engine; the first inclined hole is formed in the cylinder cover and communicated with the cylinder cover main oil duct; the valve chamber cover is arranged on the cylinder cover, the first inclined hole and the second inclined hole are spaced at intervals, and the first inclined hole inclines towards the second inclined hole so as to spray oil to the second inclined hole. Therefore, the first inclined hole is formed in the oil way structure of the engine, the second inclined hole corresponding to the first inclined hole is formed in the thrust bearing seat, lubricating oil can be sprayed to the second inclined hole from the first inclined hole, the thrust bearing seat and the shaft neck are lubricated, and accordingly NVH performance of the engine can be improved.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to an oil way structure of an engine, the engine and a vehicle.
Background
Among the correlation technique, also be responsible for driving high-pressure oil pump when the camshaft drive valve of engine, the camshaft of drive high-pressure oil pump often can be bigger than the axial impact load that does not driven bear, to the condition (the camshaft is installed on the valve chamber shroud in the cylinder cap, the valve chamber shroud is installed again on the cylinder cap) of camshaft not adorning on the cylinder cap, the footstep bearing of camshaft end generally does not have the supporting role, also generally set up lubricated oil circuit to the journal, so it is big to drive impact wear between high-pressure oil pump's the camshaft and the thrust bearing frame, easy noise generation, reduce the whole NVH performance of engine.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide an oil path structure of an engine having a good lubricating effect.
The invention also provides a vehicle which comprises the oil circuit structure of the engine.
According to the oil passage structure of the engine of the embodiment of the first aspect of the invention, the structure includes: the cylinder cover main oil gallery is arranged in a cylinder cover of the engine; the first inclined hole is formed in the cylinder cover and communicated with the cylinder cover main oil duct; the valve chamber cover is arranged on the cylinder cover, the first inclined hole and the second inclined hole are spaced at intervals, and the first inclined hole inclines towards the second inclined hole so as to spray oil to the second inclined hole.
According to the oil way structure of the engine, the first inclined hole is formed in the oil way structure of the engine, the second inclined hole corresponding to the first inclined hole is formed in the thrust bearing seat, lubricating oil can be sprayed to the second inclined hole from the first inclined hole and can lubricate the thrust bearing seat, and therefore NVH performance of the engine can be improved.
According to some embodiments of the invention, the axes of the first angled bore and the second angled bore are collinear.
According to some embodiments of the invention, a cavity is formed between the cylinder head, the valve chamber cover and the thrust bearing block, the cavity communicating the first angled bore and the second angled bore.
According to some embodiments of the invention, an inner diameter of the first angled bore is smaller than an inner diameter of the second angled bore.
According to some embodiments of the invention, the first angled bore has an inner diameter of 0.5-1.3mm and the second angled bore has an inner diameter of less than 4 mm.
According to some embodiments of the invention, the cylinder head main oil gallery comprises an intake side oil inlet passage and an exhaust side oil inlet passage, the intake side oil inlet passage and the exhaust side oil inlet passage are both connected with a first inclined hole, the valve chamber cover is provided with an intake side thrust bearing block and an exhaust side thrust bearing block, and the intake side thrust bearing block and the exhaust side thrust bearing block are both provided with a second inclined hole.
According to some embodiments of the invention, the inner surface of the thrust bearing block is distributed with oil grooves.
According to some embodiments of the invention, the thrust bearing block is an upwardly open arc, the valve chamber cover is integrally formed with a downwardly open upper seat body, and the journal of the camshaft is disposed between the thrust bearing block and the upper seat body.
According to some embodiments of the invention, the thrust bearing block is secured to the valve chamber cover by fasteners.
A vehicle according to an embodiment of the second aspect of the invention includes the oil passage structure of the engine described above.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of an oil passage structure according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an oil circuit of a lubricating oil according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a thrust bearing block and a camshaft according to an embodiment of the present invention.
Reference numerals:
an oil path structure 100,
A cylinder cover 10, a cylinder cover main oil duct 11, a first inclined hole 12,
A valve chamber cover 20,
A camshaft 30, a journal 31,
A thrust bearing seat 40, a second inclined hole 41, an oil groove 42, a chamfer 43,
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
An oil passage structure 100 of an engine according to an embodiment of the present invention is described below with reference to fig. 1 to 3.
The oil passage structure 100 of the engine according to the embodiment of the present invention includes: the cylinder head main oil gallery 11, the first inclined hole 12, and the second inclined hole 41.
Specifically, a cylinder head main oil gallery 11 is provided in a cylinder head 10 of the engine, a first inclined hole 12 is provided in the cylinder head 10, and the first inclined hole 12 communicates with the cylinder head main oil gallery 11. The second inclined hole 41 is provided on the thrust bearing seat 40 of the valve chamber cover 20, the valve chamber cover 20 is provided on the cylinder head 10, the first inclined hole 12 is spaced apart from the second inclined hole 41 and the first inclined hole 12 is inclined toward the second inclined hole 41 to spray oil to the second inclined hole 41.
It will be appreciated that the thrust bearing block 40 is typically snapped onto the journal 31 on the valve chamber cover 20.
As shown in fig. 2, further, during the operation of the engine, the lubricant oil flows from the main oil gallery to the first inclined hole 12 and is sprayed out from the first inclined hole 12, the lubricant oil sprayed out from the first inclined hole 12 is sprayed out to the second inclined hole 41, the lubricant oil enters the thrust bearing block 40 from the second inclined hole 41, and along with the high-speed operation of the camshaft 30 in the engine, the lubricant oil can flow to the position where the journal 31 and the thrust bearing block 40 are engaged through the gap between the journal 31 and the thrust bearing block 40, so that the lubricant oil can provide a good lubricating effect on the thrust bearing block 40, can effectively prevent the large wear due to the impact force between the camshaft 30 and the thrust bearing block 40, and can reduce the Noise, thereby improving the NVH (Noise, Vibration and harness) performance of the engine.
It should be noted that the arrows in fig. 2 and 3 show the flow direction of the lubricating oil in the engine, so as to more clearly understand this scheme.
It can be understood that the camshaft 30 is not mounted on the cylinder head 10, and the thrust bearing has no supporting function, so that the lubrication effect of the injection lubrication mode is better, and the arrangement can also save a plurality of lubricating oil channels arranged on the cylinder head 10 or the valve chamber cover 20, so that the structures of the cylinder head 10 and the valve chamber cover 20 are simpler, and the production and the manufacture are convenient.
According to the oil path structure 100 of the engine of the embodiment of the invention, by arranging the first inclined hole 12 in the oil path structure 100 of the engine and arranging the second inclined hole 41 corresponding to the first inclined hole 12 in the thrust bearing block 40, lubricating oil can be injected from the first inclined hole 12 to the second inclined hole 41 and lubricate the thrust bearing block 40, so that the NVH performance of the engine can be improved.
As shown in FIG. 1, in some embodiments of the present invention, the axes of first angled bore 12 and second angled bore 41 are collinear. Since the axis of the first inclined hole 12 and the axis of the second inclined hole 41 are arranged in a collinear manner, the lubricating oil can be injected into the second inclined hole 41 more accurately after being injected from the first inclined hole 12.
In the embodiment of the present invention, a cavity 60 is formed between the first inclined hole 12 and the second inclined hole 41, and the cavity 60 is defined by the cylinder head 10, the valve chamber cover 20, and the thrust bearing housing 40. The arrangement enables lubricating oil to flow through the cavity 60 and directly flow into the second inclined hole 41 after the lubricating oil is sprayed out of the first inclined hole 12, and the lubricating oil can conveniently flow to the thrust bearing seat 40 and lubricate the thrust bearing seat, the cavity 60 also has the function of storing the lubricating oil, and the arrangement enables the structure of the oil path structure 100 to be simple, and facilitates the arrangement of the cylinder cover 10, the valve chamber cover 20 and the thrust bearing seat 40.
As shown in FIG. 1, in some embodiments of the present invention, the inner diameter of first angled bore 12 is less than the inner diameter of second angled bore 41. This arrangement makes the diameter of the oil column formed by the lubricating oil ejected from the first inclined hole 12 smaller than the inner diameter of the second inclined hole 41, thereby facilitating the entry of the lubricating oil into the second inclined hole 41.
In a further embodiment of the invention, the first angled bore 12 has an inner diameter of 0.5mm to 1.3mm and the second angled bore 41 has an inner diameter of less than 4 mm. When the inner diameter of the first inclined hole 12 is within this range, the diameter of the oil column of the lubricating oil ejected from the first inclined hole 12 is small, so that the lubricating oil can enter the second inclined hole 41 conveniently, and the amount of the lubricating oil entering the second inclined hole 41 can satisfy the lubricating requirement.
Further, when the inner diameter of the first inclined hole 12 is within the above range, the oil pressure of the oil supply in the oil path structure 100 is most reasonable, and when the size of the second inclined hole 41 is within the above range, the structural strength of the thrust bearing housing 40 can be effectively ensured. Of course, the specific dimensions of the first inclined hole 12 and the second inclined hole 41 can be adjusted according to design requirements. Under the condition that the machining process allows, the smaller the first inclined hole 12 is, on the premise that the structural strength of the thrust bearing block 40 is not affected, the larger the second inclined hole 41 is, the better the lubricating effect is.
In some embodiments of the present invention, the side of the second inclined hole 41 facing the first inclined hole 12 is provided with a chamfer 43, the provision of the chamfer 43 facilitates the processing of the second inclined hole 41, and the structural strength at the second inclined hole 41 can be ensured.
As shown in fig. 1, in some embodiments of the present invention, the cylinder head main oil gallery 11 includes an intake side oil inlet gallery and an exhaust side oil inlet gallery, both of which are connected to a first inclined hole 12, the valve chamber cover 20 is provided with an intake side thrust bearing housing and an exhaust side thrust bearing housing, both of which are provided with a second inclined hole 41.
It can be understood that an air inlet side oil inlet channel and an air outlet side oil inlet channel are correspondingly arranged on an air inlet side and an air outlet side in the engine, an air inlet side thrust bearing seat is correspondingly arranged on the air inlet side oil inlet channel, an air outlet side thrust bearing seat is correspondingly arranged on the air outlet side, and lubricating oil can enter the matching part of the air inlet side thrust bearing seat of the engine and the camshaft 30 corresponding to the air inlet side thrust bearing seat through the air inlet side oil inlet channel and lubricate the air inlet side thrust bearing seat and the camshaft 30 corresponding to; lubricating oil can also enter the matching part of the exhaust-side thrust bearing block of the engine and the corresponding camshaft 30 through the exhaust-side oil inlet passage and lubricate the engine. Such an arrangement may provide more complete lubrication of the engine and may protect various components within the engine.
According to the engine provided by the embodiment of the invention, the engine comprises the oil path structure 100, and the arrangement of the oil path structure 100 can fully exert the lubricating performance of lubricating oil at the position of the thrust bearing seat 40, so that a good lubricating effect is realized in the engine.
As shown in fig. 3, in some embodiments of the invention, the inner surface of the thrust bearing block 40 is distributed with oil grooves 42. The oil groove 42 has a good guiding function for the flowing direction of the lubricating oil, and can guide the lubricating oil to the thrust surface of the thrust bearing seat 40 to be lubricated, so that the lubricating oil is lubricated and has a good lubricating effect.
In some embodiments of the invention, as shown in fig. 3, the thrust bearing seat 40 is an upwardly open arc, the valve chamber cover 20 is integrally formed with a downwardly open upper seat body, and the journal 31 of the camshaft 30 is disposed between the thrust bearing seat 40 and the upper seat body. Such a structure facilitates the matching of the thrust bearing block 40 and the camshaft 30, and if the wheel axle is not arranged on the cylinder cover 10, the thrust bearing block 40 and the upper seat body can be arranged at intervals, and the arrangement enables the lubricating oil to have a good lubricating effect on the thrust bearing block 40.
In a further embodiment of the invention, the thrust bearing block 40 is secured to the valve chamber cover 20 by fasteners 50. Therefore, the thrust bearing block 40 and the valve chamber cover 20 can be reliably connected and matched, the camshaft 30 is not arranged on the cylinder cover 10 due to the arrangement, the design requirement is met, and lubrication is better realized.
The vehicle according to the embodiment of the invention includes the oil passage structure 100 of the engine described above. Through setting up foretell oil circuit structure 100, can realize lubricating to the cooperation department of camshaft 30 and thrust bearing frame 40 better to can prevent to take place owing to the great problem of wearing and tearing that the impact leads to between camshaft 30 and the thrust bearing frame 40, can reduce the noise moreover, promote the NVH performance of engine, and then promote the NVH performance of vehicle.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. An oil passage structure of an engine, characterized by comprising:
a cylinder head main oil gallery (11) provided in a cylinder head (10) of an engine;
the first inclined hole (12) is formed in the cylinder cover (10) and communicated with the cylinder cover main oil duct (11);
a second inclined hole (41) provided on a thrust bearing seat (40) of a valve chamber cover (20), the valve chamber cover (20) being provided on the cylinder head (10); the first inclined hole (12) and the second inclined hole (41) are spaced apart and the first inclined hole (12) is inclined toward the second inclined hole (41) to inject oil to the second inclined hole (41).
2. The oil passage structure of the engine according to claim 1, characterized in that the axes of the first angled hole (12) and the second angled hole (41) are collinear.
3. The oil passage structure of the engine according to claim 1, wherein a cavity (60) is provided between the first angled hole (12) and the second angled hole (41), the cavity (60) being defined by the cylinder head (10), the valve chamber cover (20), and the thrust bearing seat (40).
4. The oil passage structure of the engine according to claim 1, wherein an inner diameter of the first angled hole (12) is smaller than an inner diameter of the second angled hole (41).
5. The oil passage structure of the engine according to claim 4, wherein the inner diameter of the first angled hole (12) is 0.5mm to 1.3mm, and the inner diameter of the second angled hole (41) is less than 4 mm.
6. The oil passage structure of the engine according to claim 1, wherein the head main oil gallery (11) includes: the air inlet side oil inlet channel and the air outlet side oil inlet channel are both connected with first inclined holes (12), an air inlet side thrust bearing seat and an air outlet side thrust bearing seat are arranged on the valve chamber cover (20), and second inclined holes (41) are arranged on the air inlet side thrust bearing seat and the air outlet side thrust bearing seat.
7. An engine characterized by comprising the oil passage structure of the engine according to any one of claims 1 to 6.
8. An engine according to claim 7, characterized in that the inner surface of the thrust bearing block (40) is distributed with oil grooves (42).
9. The engine according to claim 7, characterized in that the thrust bearing seat (40) is an upwardly open arc, the valve chamber cover (20) is integrally formed with a downwardly open upper seat, and the journal (31) of the camshaft (30) is disposed between the thrust bearing seat (40) and the upper seat.
10. A vehicle characterized by comprising an engine according to any one of claims 7-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811420411.0A CN111219225A (en) | 2018-11-26 | 2018-11-26 | Oil circuit structure of engine, engine and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811420411.0A CN111219225A (en) | 2018-11-26 | 2018-11-26 | Oil circuit structure of engine, engine and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111219225A true CN111219225A (en) | 2020-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811420411.0A Pending CN111219225A (en) | 2018-11-26 | 2018-11-26 | Oil circuit structure of engine, engine and vehicle |
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| Country | Link |
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| CN (1) | CN111219225A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4957079A (en) * | 1988-12-03 | 1990-09-18 | Mazda Motor Corporation | Camshaft structure for double overhead camshaft engine |
| CN201090261Y (en) * | 2007-08-30 | 2008-07-23 | 奇瑞汽车股份有限公司 | Bearing support of cam shaft |
| CN103670585A (en) * | 2012-09-20 | 2014-03-26 | 铃木株式会社 | Oiling structure for engine |
| CN103775166A (en) * | 2012-10-25 | 2014-05-07 | 重庆长安汽车股份有限公司 | Oil way structure of engine |
| CN104653244A (en) * | 2013-11-20 | 2015-05-27 | 北汽福田汽车股份有限公司 | Anti-thrust structure for engine cam shaft, engine with anti-thrust structure and vehicle |
| CN108223047A (en) * | 2017-06-09 | 2018-06-29 | 长城汽车股份有限公司 | Valve actuating mechanism, engine and vehicle |
-
2018
- 2018-11-26 CN CN201811420411.0A patent/CN111219225A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4957079A (en) * | 1988-12-03 | 1990-09-18 | Mazda Motor Corporation | Camshaft structure for double overhead camshaft engine |
| CN201090261Y (en) * | 2007-08-30 | 2008-07-23 | 奇瑞汽车股份有限公司 | Bearing support of cam shaft |
| CN103670585A (en) * | 2012-09-20 | 2014-03-26 | 铃木株式会社 | Oiling structure for engine |
| CN103775166A (en) * | 2012-10-25 | 2014-05-07 | 重庆长安汽车股份有限公司 | Oil way structure of engine |
| CN104653244A (en) * | 2013-11-20 | 2015-05-27 | 北汽福田汽车股份有限公司 | Anti-thrust structure for engine cam shaft, engine with anti-thrust structure and vehicle |
| CN108223047A (en) * | 2017-06-09 | 2018-06-29 | 长城汽车股份有限公司 | Valve actuating mechanism, engine and vehicle |
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Application publication date: 20200602 |