CN105114201A - Integrated camshaft bearing cover assembly of diesel engine - Google Patents
Integrated camshaft bearing cover assembly of diesel engine Download PDFInfo
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- CN105114201A CN105114201A CN201510466800.7A CN201510466800A CN105114201A CN 105114201 A CN105114201 A CN 105114201A CN 201510466800 A CN201510466800 A CN 201510466800A CN 105114201 A CN105114201 A CN 105114201A
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- camshaft
- bearing cap
- valve chamber
- chamber cover
- diesel engine
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Abstract
The invention discloses an integrated camshaft bearing cover assembly of a diesel engine, and belongs to the field of vehicle engines. The assembly at least comprises a cylinder cover, a valve chamber cover type camshaft bearing cover, hexagonal flange surface bolts and a first camshaft bearing cover, wherein the valve chamber cover type camshaft bearing cover is to optimize and integrate a diesel engine valve chamber cover and the camshaft bearing cover as a whole; the periphery of the valve chamber cover type camshaft bearing cover is fixedly connected to the upper surface of a cylinder cover through the hexagonal flange surface bolts; and the first camshaft bearing cover is mounted on the upper surface of the valve chamber cover type camshaft bearing cover through bolts to integrate a diesel engine camshaft bearing cover assembly so as to realize functions of a camshaft support base and a valve chamber cover. As the bearing cover part integration of the diesel engine and the mechanical optimization of associated parts are performed, the lightweight of the diesel engine is realized, and the oil consumption and the manufacturing cost are reduced.
Description
Technical field
The present invention relates to automotive engine applications, particularly a kind of diesel engine integrated form camshaft bearing cap assembly.
Background technique
In order to meet day by day harsh engine consumption standard, reduce the discharge of poisonous waste of vehicle exhaust, automobile lightweight has become one of focus that Ge great main engine factory pay close attention to, research shows, automobile gross mass often reduces 100Kg, and fuel consumption per hundred kilometers can reduce 0.3L-0.6L, in addition, automotive light weight technology can also improve the power character of automobile, saves material, reduces integral vehicle cost.
Motor is the power resources of car load, is also that the quality of car load shares rich and influential family, and the lightweight of motor can improve front-wheel loading share rate, improves the control stability of automobile, can also reduce noise and vibrations, creates conditions for realizing high-power.
The lightweight of motor can alleviate component weight by substitution material, and can also optimize the structure composition of component and system, in addition to assembly mould blocking and the Mechanism Optimization associating component, the Integrated design of component also can reach light-weighted object.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem:
Component choose the rising of negative effect that substitution material brings and cost, and engine pack modular design often strengthens design difficulty and the manufacturing difficulty of component, thus also can cause the rising of cost.
Component Integrated design is as the term suggests be integrated into a part by two or more part, under this kind of design concept is based upon the prerequisite not reducing engine component usability, engine camshaft bearing cap mainly plays a supporting effect, and valve chamber cover mainly plays a seal action to cylinder cap top, in order to the labyrinth of triton system is often integrated in valve chamber cover inside by the utilization ratio improving valve chamber cover space, this kind of design adds the height of whole motor.
Along with new diseases, present stage, most of main engine factory all adopted plastic valve chamber cover to reduce the weight of motor, but this scheme cannot reduce the whole height of motor, labyrinthine system is integrated in the inner restriction due to structure of valve chamber cover in addition, and oil-gas separation efficiency also will certainly have a certain impact.
Reduce the major subjects that vehicular engine oil consumption has become present stage car enterprise, the impact of engine weight on oil consumption also can not be ignored, due to the structural limitations of diesel engine, bearing cap many employings frame type of diesel engine, framework top seals with valve chamber cover again, this kind of design weight weight, and manufacture cost is high, and many layer sealing surfaces, add risk of leakage.
Summary of the invention
In order to solve the problem of prior art, embodiments provide a kind of diesel engine integrated form camshaft bearing cap assembly.By the integrated of the bearing cap component to diesel engine and the Mechanism Optimization associating component, realize the lightweight of diesel engine, reduce oil consumption and manufacture cost.Described technological scheme is as follows:
A kind of diesel engine integrated form camshaft bearing cap assembly, at least comprises: cylinder head, valve chamber cover formula camshaft-bearing cap, hexagon flange bolt, the first camshaft-bearing cap; Described valve chamber cover formula camshaft-bearing cap is become one at diesel engine spiracle room cover cap and camshaft-bearing cap structure optimization; Described valve chamber cover formula camshaft-bearing cap surrounding connects firmly on cylinder head by hexagon flange bolt, first camshaft-bearing cap is arranged on above valve chamber cover formula camshaft-bearing cap by bolt, be integrated into diesel engine camshaft bearing cap assembly, jointly realize the function that the supporting base of camshaft and valve chamber cover have.
Described valve chamber cover formula camshaft bearing covers integrated being laid with: camshaft phase sensor mounting hole, camshaft bearing shelves, oil injector clip briquetting mountion plate, lubricating oil outlet, mounting hole of oil sprayer, lubricating oil inlet, oil groove related organization and relevant hole position and slot.
Described valve chamber cover formula camshaft-bearing cap adopts low density aluminum alloy die cast global formation, and wall thickness is 2.5mm-3mm.
The cross section of described camshaft bearing shelves is half " work " font structure.
Described camshaft bearing shelves are along valve chamber cover formula camshaft-bearing cap length direction symmetric arrays, and each camshaft bearing shelves both sides connect firmly on cylinder head by hexagon flange bolt, jointly form camshaft support with the bearing guard of cylinder head.
Described camshaft phase sensor mounting hole is disposed between row's camshaft bearing shelves.
Described oil injector clip briquetting mountion plate, mounting hole of oil sprayer are disposed between two row's camshaft bearing shelves, are positioned on the length direction center line of valve chamber cover formula camshaft-bearing cap; Described oil injector clip briquetting mountion plate has additional large-area steel briquetting.
Described oil groove is integrated in the inner face of valve chamber cover formula camshaft-bearing cap, is positioned at the first axle journal anterior; One end of described oil groove is communicated with the lubricating oil inlet that valve chamber cover formula camshaft bearing covers, and the other end is communicated with the lubricating oil outlet that valve chamber cover formula camshaft bearing covers.
Described cylinder head air inlet is surveyed main oil gallery lubricant oil and is entered oil groove (2.7) by lubricating oil inlet, lubricant oil is introduced lubricating oil outlet by the guiding through oil groove, enter the oil leab of cylinder head exhaust side again, the distribution device assembly of lubrication exhaust side.
Described valve chamber cover formula camshaft-bearing cap and engine cylinder cap adopt joins lead plug form and is connected; Described valve chamber cover formula camshaft-bearing cap and cylinder head attach together processing simultaneously; Silicone rubber seal is adopted between described valve chamber cover formula camshaft-bearing cap and diesel motor valve bonnet lid.
The beneficial effect that the technological scheme that the embodiment of the present invention provides is brought is:
By when the Mechanism Optimization of the integrated of the bearing cap component to diesel engine and association component, valve chamber cover and camshaft-bearing cap structure optimization are become one, reduces the whole height of diesel engine, be easy to complete machine and arrange; Integrated form camshaft bearing cap assembly can realize the function that the supporting base of camshaft and valve chamber cover have jointly, owing to decreasing a layer sealing surface on diesel engine bearing cap framework top, thus reduces risk of leakage; Camshaft bearing cap assembly after integrated reduces weight and the manufacture cost of motor, reduces oil consumption.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of diesel engine integrated form camshaft-bearing cap assembly structure schematic diagram that the embodiment of the present invention provides;
Fig. 2 is the plan view of the valve chamber cover formula camshaft-bearing cap structural representation in Fig. 1 of providing of the embodiment of the present invention;
Fig. 3 is the worm's eye view of Fig. 2 that the embodiment of the present invention provides.
In figure, each symbol represents that implication is as follows:
1 cylinder head;
2 valve chamber cover formula camshaft-bearing caps, 2.1 camshaft phase sensor mounting holes, 2.2 camshaft bearing shelves, 2.3 oil injector clip briquetting mountion plates, 2.4 lubricating oil outlets, 2.5 mounting hole of oil sprayer, 2.6 lubricating oil inlets, 2.7 oil grooves;
3 hexagon flange bolts;
4 first camshaft-bearing caps.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail.
Shown in Figure 1, embodiments provide a kind of diesel engine integrated form camshaft bearing cap assembly, at least comprise: the component such as cylinder head 1, valve chamber cover formula camshaft-bearing cap 2, hexagon flange bolt 3, first camshaft-bearing cap 4; Particularly, described valve chamber cover formula camshaft-bearing cap 2 is become one at diesel engine spiracle room cover cap and camshaft-bearing cap structure optimization; Described valve chamber cover formula camshaft-bearing cap 2 surrounding connects firmly on cylinder head 1 by 25 M6 hexagon flange bolts 3, described first camshaft-bearing cap 4 is arranged on above valve chamber cover formula camshaft-bearing cap 2 by four M6 bolts, is integrated into diesel engine camshaft bearing cap assembly; Because engine camshaft bearing cap is mainly played a supporting role, and valve chamber cover mainly plays the seal action to cylinder cap top, by valve chamber cover and camshaft-bearing cap are become one, make Mechanism Optimization, camshaft bearing cap assembly after integrated achieves the function that the supporting base of camshaft and valve chamber cover have jointly, decrease quantity and the sealing surface of component, make integrated after the lightweight more of camshaft bearing cap assembly.
Described valve chamber cover formula camshaft-bearing cap 2 adopts with the connection of engine cylinder cap 1 joins lead plug form, and this kind of Placement can reduce the magnitude of misalignment between bearing cap and cylinder cap to greatest extent, thus the quality of guarantee motor, reduce unnecessary wearing and tearing.For ensureing the coaxality of cam shaft bearing bore, described valve chamber cover formula camshaft-bearing cap 2 need attach together processing with cylinder head 1 simultaneously.
Adopt silicone rubber to seal between valve chamber cover formula camshaft-bearing cap 2 after integrated and diesel motor valve bonnet lid, the gap that can make up is comparatively large, thus reduces risk of leakage.
Simultaneously see shown in Fig. 2, Fig. 3, integratedly on described valve chamber cover formula camshaft-bearing cap 2 to be laid with: the related organization such as camshaft phase sensor mounting hole 2.1, camshaft bearing shelves 2.2, oil injector clip briquetting mountion plate 2.3, lubricating oil outlet 2.4, mounting hole of oil sprayer 2.5, lubricating oil inlet 2.6, oil groove 2.7 and relevant hole position and slot, whole employing small―gap suture is arranged, valve chamber cover formula camshaft-bearing cap 2 after integrated adopts low density aluminum alloy die cast global formation, and wall thickness is 2.5mm-3mm.
Further, the cross section of described camshaft bearing shelves 2.2 is half " work " font structure, gets final product proof strength, can play loss of weight effect again; The multiple camshaft bearing shelves 2.2 of two rows are along valve chamber cover formula camshaft-bearing cap 2 length direction symmetric arrays, each camshaft bearing shelves 2.2 both sides connect firmly on cylinder head 1 by two M6 hexagon flange bolts 3, jointly form camshaft support with the bearing guard of cylinder head 1.
Described camshaft phase sensor mounting hole 2.1 is two, is disposed between row's camshaft bearing shelves 2.2, and layout is simple, for the installation of camshaft phase sensor.
Described oil injector clip briquetting mountion plate 2.3 is two, mounting hole of oil sprayer 2.5 is three, be disposed between two row's camshaft bearing shelves 2.2, be positioned on the length direction center line of valve chamber cover formula camshaft-bearing cap 2, mounting hole of oil sprayer 2.5 is in order to install oil sprayer; This kind of structure can alleviate impact force in oil sprayer working procedure to the destruction of valve chamber cover formula camshaft-bearing cap 2, described oil injector clip briquetting mountion plate 2.3 has been set up the steel briquetting of larger area, can play the effect increasing bearing area.
Described oil groove 2.7 is integrated in the inner face of valve chamber cover formula camshaft-bearing cap 2, and be positioned at the first axle journal anterior, oil groove 2.7 mainly contains two effects, and one is to provide the lubrication to the first camshaft bearing journal; Two is that cylinder head 1 air inlet side main oil gallery lubricant oil is imported exhaust side lubricating oil duct, to provide the lubrication of distribution device.
One end of described oil groove 2.7 is communicated with the lubricating oil inlet 2.6 on valve chamber cover formula camshaft-bearing cap 2, and the other end is communicated with the lubricating oil outlet 2.4 on valve chamber cover formula camshaft-bearing cap 2; In work, cylinder head 1 air inlet is surveyed main oil gallery lubricant oil and is entered oil groove 2.7 by lubricating oil inlet 2.6, lubricant oil is introduced lubricating oil outlet 2.4 by the guiding through oil groove 2.7, then enters the oil leab of cylinder head 1 exhaust side, the distribution device assembly of lubrication exhaust side.
In addition, the deaerator of the embodiment of the present invention can adopt independent module integration, is conducive to improving oil-gas separation efficiency; Also plastic oil gas separating device can be selected to be integrated in other positions of cylinder head 1 or motor.
In addition, the advantage that the embodiment of the present invention also has, valve chamber cover formula camshaft-bearing cap after integrated adopts density lower aluminum alloy casting global formation, rare casting defect, and wall thickness reduces, weight reduces, be provided with position, hole and slot, can be used for the related organizations such as camshaft phase sensor, oil sprayer and lubricating oil path being installed, compact structure, decrease the usage quantity of bolt, make mechanism's lightweight more.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a diesel engine integrated form camshaft bearing cap assembly, it is characterized in that, at least comprise: cylinder head (1), valve chamber cover formula camshaft-bearing cap (2), hexagon flange bolt (3), the first camshaft-bearing cap (4); Described valve chamber cover formula camshaft-bearing cap (2) is become one at diesel engine spiracle room cover cap and camshaft-bearing cap structure optimization; Described valve chamber cover formula camshaft-bearing cap (2) surrounding connects firmly on cylinder head (1) by hexagon flange bolt (3), first camshaft-bearing cap (4) is arranged on above valve chamber cover formula camshaft-bearing cap (2) by bolt, be integrated into diesel engine camshaft bearing cap assembly, jointly realize the function that the supporting base of camshaft and valve chamber cover have.
2. diesel engine integrated form camshaft bearing cap assembly according to claim 1, it is characterized in that, described valve chamber cover formula camshaft-bearing cap (2) is above integrated to be laid with: camshaft phase sensor mounting hole (2.1), camshaft bearing shelves (2.2), oil injector clip briquetting mountion plate (2.3), lubricating oil outlet (2.4), mounting hole of oil sprayer (2.5), lubricating oil inlet (2.6), oil groove (2.7) related organization and relevant hole position and slot.
3. diesel engine integrated form camshaft bearing cap assembly according to claim 1, is characterized in that, described valve chamber cover formula camshaft-bearing cap (2) adopts low density aluminum alloy die cast global formation, and wall thickness is 2.5mm-3mm.
4. diesel engine integrated form camshaft bearing cap assembly according to claim 2, is characterized in that, the cross section of described camshaft bearing shelves (2.2) is half " work " font structure.
5. diesel engine integrated form camshaft bearing cap assembly according to claim 2, it is characterized in that, described camshaft bearing shelves (2.2) are along valve chamber cover formula camshaft-bearing cap (2) length direction symmetric arrays, each camshaft bearing shelves (2.2) both sides connect firmly on cylinder head (1) by hexagon flange bolt (3), jointly form camshaft support with the bearing guard of cylinder head (1).
6. diesel engine integrated form camshaft bearing cap assembly according to claim 2, is characterized in that, described camshaft phase sensor mounting hole (2.1) is disposed between row's camshaft bearing shelves (2.2).
7. diesel engine integrated form camshaft bearing cap assembly according to claim 2, it is characterized in that, described oil injector clip briquetting mountion plate (2.3), mounting hole of oil sprayer (2.5) are disposed between two row's camshaft bearing shelves (2.2), are positioned on the length direction center line of valve chamber cover formula camshaft-bearing cap (2); Described oil injector clip briquetting mountion plate (2.3) has additional large-area steel briquetting.
8. diesel engine integrated form camshaft bearing cap assembly according to claim 2, it is characterized in that, described oil groove (2.7) is integrated in the inner face of valve chamber cover formula camshaft-bearing cap (2), is positioned at the first axle journal anterior; One end of described oil groove (2.7) is communicated with the lubricating oil inlet (2.6) on valve chamber cover formula camshaft-bearing cap (2), and the other end is communicated with the lubricating oil outlet (2.4) on valve chamber cover formula camshaft-bearing cap (2).
9. the diesel engine integrated form camshaft bearing cap assembly according to claim 1 or 8, it is characterized in that, described cylinder head (1) air inlet is surveyed main oil gallery lubricant oil and is entered oil groove (2.7) by lubricating oil inlet (2.6), lubricant oil is introduced lubricating oil outlet (2.4) by the guiding through oil groove (2.7), enter the oil leab of cylinder head (1) exhaust side again, the distribution device assembly of lubrication exhaust side.
10. diesel engine integrated form camshaft bearing cap assembly according to claim 1, is characterized in that, described valve chamber cover formula camshaft-bearing cap (2) and engine cylinder cap (1) adopt joins lead plug form and be connected; Described valve chamber cover formula camshaft-bearing cap (2) and cylinder head (1) attach together processing simultaneously; Silicone rubber seal is adopted between described valve chamber cover formula camshaft-bearing cap (2) and diesel motor valve bonnet lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510466800.7A CN105114201B (en) | 2015-07-31 | 2015-07-31 | A kind of diesel engine integrated form camshaft bearing cap assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510466800.7A CN105114201B (en) | 2015-07-31 | 2015-07-31 | A kind of diesel engine integrated form camshaft bearing cap assembly |
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| Publication Number | Publication Date |
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| CN105114201A true CN105114201A (en) | 2015-12-02 |
| CN105114201B CN105114201B (en) | 2017-11-14 |
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| CN201510466800.7A Active CN105114201B (en) | 2015-07-31 | 2015-07-31 | A kind of diesel engine integrated form camshaft bearing cap assembly |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704027A (en) * | 2016-12-27 | 2017-05-24 | 清华大学 | Cylinder cover sealing cover cap for four-valve electronic injection internal combustion engine |
| CN106930858A (en) * | 2017-04-21 | 2017-07-07 | 江阴中玮动力机械有限公司 | Covered on engine |
| CN112664290A (en) * | 2020-12-21 | 2021-04-16 | 中国北方发动机研究所(天津) | Box camshaft support frame of engine |
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| JP2011112007A (en) * | 2009-11-30 | 2011-06-09 | Honda Motor Co Ltd | Lubrication structure of valve gear |
| CN201972805U (en) * | 2010-10-27 | 2011-09-14 | 江苏大学 | Light-weight equal-rigidity aluminum diesel engine body |
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| CN2866865Y (en) * | 2006-01-24 | 2007-02-07 | 沈阳华晨金杯汽车有限公司 | Turbine booster engine cylinder head upper body structure |
| JP2010229830A (en) * | 2009-03-26 | 2010-10-14 | Honda Motor Co Ltd | Four-stroke cycle internal combustion engine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106704027A (en) * | 2016-12-27 | 2017-05-24 | 清华大学 | Cylinder cover sealing cover cap for four-valve electronic injection internal combustion engine |
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| CN106930858A (en) * | 2017-04-21 | 2017-07-07 | 江阴中玮动力机械有限公司 | Covered on engine |
| CN112664290A (en) * | 2020-12-21 | 2021-04-16 | 中国北方发动机研究所(天津) | Box camshaft support frame of engine |
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| Publication number | Publication date |
|---|---|
| CN105114201B (en) | 2017-11-14 |
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