CN103790665A - Camshaft bearing bracket, engine and VVT (variable valve timing) oil supply way structure of engine - Google Patents
Camshaft bearing bracket, engine and VVT (variable valve timing) oil supply way structure of engine Download PDFInfo
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- CN103790665A CN103790665A CN201210431755.8A CN201210431755A CN103790665A CN 103790665 A CN103790665 A CN 103790665A CN 201210431755 A CN201210431755 A CN 201210431755A CN 103790665 A CN103790665 A CN 103790665A
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- camshaft bearing
- bearing support
- camshaft
- engine cylinder
- oil
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Abstract
The invention discloses a camshaft bearing bracket, an engine and a VVT (variable valve timing) oil supply way structure of the engine. Camshaft bearing supporting portions (31) and oil holes (32) which are constituent parts of a VVT oil supply way are formed on the camshaft bearing bracket (3), the oil holes penetrate through the upper and lower surfaces of the camshaft bearing bracket (3) and are spaced with the camshaft bearing supporting portions (31). The camshaft bearing bracket (3) is mounted on an engine cylinder head (1) and positioned between the engine cylinder head and a camshaft cover cap (4), and two internal oil ways are connected through the oil holes (32) and connected to a VVT oil way control valve (6). The camshaft bearing support has functions of supporting a camshaft and serving as an oil guide way, an internal oil way of the engine cylinder head can be led onto the camshaft cover cap, the VVT oil supply oil structure is simple and clear, the engine cylinder head or the camshaft cover cap is convenient to process and manufacture, and cost is reduced.
Description
Technical field
The present invention relates to engine structure field, particularly, relate to the camshaft bearing support on a kind of motor and draw oily VVT oil feeding line structure by this camshaft bearing support.
Background technique
VVT(Variable Valve Time) technology is widely applied in current engine art.Adopt the motor of VVT technology, its fuel supply path normally designs in the fore-end of engine cylinder cover or engine front cover lid, but this all can cause the wall thickness of cylinder cap or front cover to increase, internal oil passages winding complex, make processing technology difficulty large, and can cause the increase of weight and the length of motor, thereby bring larger manufacture cost.In addition, the support of the camshaft in existing motor is to process bearing structure and realize by covering at engine cylinder, has increased thickness and the difficulty of processing of engine cylinder cover.
Summary of the invention
The object of this invention is to provide a kind of camshaft bearing support, draw oily VVT oil feeding line structure and motor by this camshaft bearing support, to make the VVT oil feeding line of motor simple in structure, be convenient to the manufacturing of parts.
To achieve these goals, the invention provides a kind of camshaft bearing support, on this camshaft bearing support, be formed with camshaft bearing support and for forming the oilhole of VVT oil feeding line constituent element, described oilhole run through the upper and lower surface of described camshaft bearing support and with described camshaft bearing support separately.
Preferably, this camshaft bearing support is elongate in shape, and the surface part running through corresponding to described oilhole on the upper and lower surface of described camshaft bearing support is formed as respectively plane.
Preferably, on this camshaft bearing support, be also formed with multiple attachment holes, the axis of this attachment hole is parallel to the axis of described oilhole.
Preferably, above-mentioned camshaft bearing support and described oilhole are two, and these two camshaft bearing supports interval on described camshaft bearing support arranges, and described two oilholes are formed between described two camshaft bearing supports.
In addition, the present invention also provides a kind of VVT oil feeding line structure of motor, this oil feeding line structure comprises engine cylinder cover, camshaft cover cap, VVT oil passage control valve and the above-mentioned camshaft bearing support according to the present invention, this camshaft bearing support is arranged on that described engine cylinder covers and between this engine cylinder cover and camshaft cover cap, described camshaft bearing support connects the internal oil passages of described engine cylinder cover and the internal oil passages of described camshaft cover cap by described oilhole, and the internal oil passages of this camshaft cover cap is connected to described VVT oil passage control valve.
Preferably, this oil feeding line structure also comprises one-way valve, and described one-way valve is installed in the oilhole of described camshaft bearing support, and the forward hydraulic fluid port of this one-way valve is communicated with the internal oil passages of described engine cylinder cover.
Preferably, the upper surface of described camshaft bearing support and described camshaft cover cap is lower along face laminating, so that the first hydraulic fluid port that the internal oil passages of described camshaft cover cap forms on described lower edge face is engaged with the described oilhole of described camshaft bearing support; The inner side of described engine cylinder cover is formed with step surface, the internal oil passages of described engine cylinder cover is formed with the second hydraulic fluid port on described step surface, the lower surface of described camshaft bearing support and the laminating of the step surface of described engine cylinder cover, to make described the second hydraulic fluid port engage with the described oilhole of described camshaft bearing support.
Preferably, described oil feeding line structure also comprises draws oily support, this draws on the outer surface that oily support is installed to described engine cylinder cover, described drawing on the interior edge face relative with outer surface described engine cylinder cover oily support is formed with and draws oil groove, the internal oil passages of described engine cylinder cover is formed with oil outlet and filler opening on described outer surface, and this oil outlet is connected by the described oil groove that draws with filler opening.
Preferably, described the second hydraulic fluid port on the step surface of the described filler opening on the outer surface of described engine cylinder cover and described engine cylinder cover is connected.
In addition, the present invention also provides a kind of motor, and this motor comprises the VVT oil feeding line structure of the motor above-mentioned according to the present invention.
Pass through technique scheme, according in the VVT oil feeding line structure of camshaft bearing support of the present invention and motor, camshaft bearing support has supporting cam wheel axle and doubles as the function of drawing oil circuit, the interior oil circuit of engine cylinder cover can be incorporated into camshaft cover covers, thereby by camshaft cover cap, pressure oil is supplied with to VVT oil passage control valve, realize the unimpeded of VVT oil circuit, can also supply with oil lubrication to camshaft by VVT oil passage control valve.Oil channel structures is simply clear, and the convenient processing and manufacture of engine cylinder cover or camshaft cover cap, has reduced manufacture cost.
Other features and advantages of the present invention are described in detail the embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms a part for specification, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Fig. 1 is according to the stereogram of the main perspective degree of the camshaft bearing support of the preferred embodiment of the present invention;
Fig. 2 is the stereogram of the depression angle of the camshaft bearing support in Fig. 1;
Fig. 3 is the inner side view of drawing oily support according to the preferred embodiment of the present invention;
Fig. 4 is the outer side view of drawing oily support in Fig. 3;
Fig. 5 is according to the structure principle chart of the VVT oil feeding line structure of the motor of the preferred embodiment of the present invention.
description of reference numerals
1 engine cylinder cover 2 draws oily support
3 camshaft bearing support 4 camshaft cover caps
5 one-way valve 6 VVT oil passage control valves
7 oil outlet 8 filler openings
9 the 3rd hydraulic fluid port 10 camshafts
11 step surfaces 12 the 4th hydraulic fluid port
13 the 5th hydraulic fluid port 21 interior edge faces
22 draw the fastening mounting hole of oil groove 23
31 camshaft bearing support 32 oilholes
The upper surface of 33 attachment hole 34 camshaft bearing supports
The lower surface 41 camshaft cover caps of 35 camshaft bearing supports lower to face
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, embodiment described herein only, for description and interpretation the present invention, is not limited to the present invention.
In the present invention, in the situation that not doing contrary explanation, the noun of locality of use as " upper and lower, top, the end " normally for direction shown in the drawings or for the each parts mutual alignment relationship description word vertically, on vertical or gravitational direction.
As depicted in figs. 1 and 2, shown respectively roughly main look with depression angle under a kind of three-dimensional diagram of camshaft bearing support.On diagram camshaft bearing support 3 provided by the invention, be formed with camshaft bearing support 31 and for forming the oilhole 32 of VVT oil feeding line constituent element, oilhole 32 run through the upper and lower surface of camshaft bearing support 3 and with camshaft bearing support 31 separately.Camshaft bearing support Design of the present invention becomes to have the effect of supporting engines camshaft and can double as the constituent element of VVT oil feeding line.In prior art, cover and process camshaft bearing support at engine cylinder, the present invention adopts independent structure member, be camshaft bearing support 3, can facilitate the processing of engine cylinder cover, reduce the technology difficulty of engine cylinder cover in casting or mould-forming.
Wherein, this camshaft bearing support 3 is formed as elongate in shape, joins along its length engine cylinder to and covers.The surface part running through corresponding to oilhole 32 on camshaft bearing support 3 upper and lower surfaces is preferably formed as respectively plane, and plane engagement mode makes laminating closely, is convenient to being connected between oilhole 32 and other oil circuit.In addition, also can be formed with multiple attachment holes 33 to connect on engine cylinder cover 1 and camshaft cover cap 4 as shown in Figure 5 on camshaft bearing support 3, the axis of this attachment hole 33 is preferably the axis that is parallel to oilhole 32.
Above-mentioned camshaft bearing support 3 is in the time being installed on motor, because the camshaft 10(on engine cylinder cover 1 is shown in Fig. 5) be generally two, thereby camshaft bearing support 31 and oilhole 32 be two, respectively each camshaft is provided support and to be lubricated.These two camshaft bearing supports 31 interval on camshaft bearing support 3 arranges, and two 32 of oilholes are formed between two camshaft bearing supports 31.
Adopt after above-mentioned camshaft bearing support 3, on engine cylinder cover 1, can form a kind of new motor VVT oil feeding line structure.As shown in Figure 5, this oil feeding line structure can comprise engine cylinder cover 1, camshaft cover cap 4, VVT oil passage control valve 6 and above-mentioned camshaft bearing support 3, this camshaft bearing support 3 is arranged on engine cylinder cover 1 and between this engine cylinder cover 1 and camshaft cover cap 4, camshaft bearing support 3 is by the internal oil passages of oilhole 32 connecting engine cylinder caps 1 and the internal oil passages of camshaft cover cap 4, and the internal oil passages of this camshaft cover cap 4 is connected to VVT oil passage control valve 6.In this VVT oil feeding line structure, be communicated with the internal oil passages between engine cylinder cover 1 and camshaft cover cap 4 and be connected on VVT oil circuit control by camshaft bearing support 3, to provide hydraulic oil to VVT.And well known to a person skilled in the art to be, in VVT oil circuit control, can provide lubricant oil to be lubricated to camshaft 10 by VVT oil passage control valve 6, thereby not shown among Fig. 5 to lubricating oil path between camshaft 10 from VVT oil passage control valve 6.As previously mentioned, independent camshaft bearing support 3 supporting cam wheel axle 10 is easily set, the inner side of engine cylinder cover 1 can be formed with step surface 11, step surface 11 can design or be processed into simple plane and can engage with camshaft bearing support 3, and the attachment hole 33 and the fastening piece that pass through camshaft bearing support 3 two ends are as shown in Figure 1 fastenedly connected.Thereby can facilitate the processing of engine cylinder cover 1, and reducing the technology difficulty of engine cylinder cover 1 in casting or mould-forming, the wall thickness of engine cylinder cover 1 can design thinner lighter.
Be communicated with the internal oil passages between engine cylinder cover 1 and camshaft cover cap 4 for realizing by camshaft bearing support 3, as shown in Figure 5, the lower of the upper surface 34 of camshaft bearing support 3 and camshaft cover cap 4 is the mating face between the upper surface of engine cylinder cover 1 and the lower surface of camshaft cover cap 4 along face 41() be designed to laminating, so that the first hydraulic fluid port (not shown) that the internal oil passages of camshaft cover lid 4 forms on lower edge face 41 is engaged with the oilhole 32 of camshaft bearing support 3.Similarly, the internal oil passages of engine cylinder cover 1 is also designed with the second hydraulic fluid port (not shown) at the step surface 11 of engine cylinder cover 1, the lower surface 35 of camshaft bearing support 3 is fitted with the step surface 11 of engine cylinder cover 1, so that the second hydraulic fluid port is engaged with the oilhole 32 of camshaft bearing support 3.Can make hydraulic circuit connection unimpeded by making hydraulic fluid port docking and the Sealings such as seal oil ring being installed near the hydraulic fluid port of interface.
It should be noted that, in common VVT oil circuit control, need to install one-way valve 5, often need to increase mounting structure.In the VVT of the motor shown in Fig. 5 oil feeding line structure, in the oilhole 32 of camshaft bearing support 3, can hold one-way valve 5 is installed, the forward hydraulic fluid port of this one-way valve 5 is communicated with the internal oil passages of engine cylinder cover 1, make hydraulic oil can only flow to from the internal oil passages of engine cylinder cover 1 internal oil passages of camshaft cover cap 4, to give VVT fuel feeding.Therefore, adopt VVT oil feeding line structure of the present invention to facilitate the installation of the one-way valve 5 of VVT oil circuit.
In addition, as shown in Figure 3 and Figure 4, for further reducing the wall thickness of engine cylinder cover 1, reduce motor axial dimension and engine weight, also introduce one and drawn oily support 2, this draws oily support 2 and can be installed on the outer surface of engine cylinder cover 1, draws on the interior edge face 21 that the outer surface with engine cylinder cover 1 of oily support 2 is relative and can be formed with and draw oil groove 22.Wherein, the internal oil passages of engine cylinder cover 1 is correspondingly designed to have oil outlet 7 and two filler openings 8 on the outer surface, and this oil outlet 7 is connected by drawing oil groove 22 with filler opening 8.So just avoid also needing to process at the wall thickness weakness of engine cylinder cover 1 problem of internal oil passages.Wherein, draw oily support 2 and can form multiple fastening mounting holes 23, be installed on engine cylinder cover 1 by fastening piece is fastening.
In application, the working connection of engine cylinder cover 1 can be incorporated in oily support 2 by oil outlet 7, and turns back to engine cylinder cover 1 by filler opening 8, and the 3rd hydraulic fluid port 9 of the oil circuit required with other parts of motor is connected.Wherein, filler opening 8 on the outer surface of engine cylinder cover 1 is connected with the second hydraulic fluid port on the step surface 11 of engine cylinder cover 1, by drawing oily support 2, the working connection of engine cylinder cover 1 is incorporated into the internal oil passages of camshaft cover cap 4, then is communicated to respectively on VVT oil circuit control by the 4th hydraulic fluid port 12 and the 5th hydraulic fluid port 13 of camshaft cover cap 4 internal oil passages.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned mode of execution; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technological scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristics described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode, for fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible compound modes.
In addition, also can carry out combination in any between various mode of execution of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. camshaft bearing support, it is characterized in that, on this camshaft bearing support (3), be formed with camshaft bearing support (31) and for forming the oilhole (32) of VVT oil feeding line constituent element, described oilhole (32) run through the upper and lower surface of described camshaft bearing support (3) and with described camshaft bearing support (31) separately.
2. camshaft bearing support according to claim 1, it is characterized in that, this camshaft bearing support (3) is elongate in shape, and the surface part running through corresponding to described oilhole (32) on the upper and lower surface of described camshaft bearing support (3) is formed as respectively plane.
3. camshaft bearing support according to claim 1, is characterized in that, on this camshaft bearing support (3), is also formed with multiple attachment holes (33), and the axis of this attachment hole (33) is parallel to the axis of described oilhole (32).
4. according to the camshaft bearing support described in any one in claims 1 to 3, it is characterized in that, described camshaft bearing support (31) and described oilhole (32) are two, these two camshaft bearing supports (31) arrange at the upper interval of described camshaft bearing support (3), and described two oilholes (32) are formed between described two camshaft bearing supports (31).
5. the VVT oil feeding line structure of motor, it is characterized in that, this oil feeding line structure comprises engine cylinder cover (1), camshaft cover cap (4), VVT oil passage control valve (6) and according to the camshaft bearing support (3) described in any one in claim 1-4, this camshaft bearing support (3) is arranged on described engine cylinder cover (1) and goes up and be positioned between this engine cylinder cover (1) and camshaft cover cap (4), described camshaft bearing support (3) connects the internal oil passages of described engine cylinder cover (1) and the internal oil passages of described camshaft cover cap (4) by described oilhole (32), the internal oil passages of this camshaft cover cap (4) is connected to described VVT oil passage control valve (6).
6. the VVT oil feeding line structure of motor according to claim 5, it is characterized in that, this oil feeding line structure also comprises one-way valve (5), in the oilhole (32) of described camshaft bearing support (3), described one-way valve (5) is installed, the forward hydraulic fluid port of this one-way valve (5) is communicated with the internal oil passages of described engine cylinder cover (1).
7. the VVT oil feeding line structure of motor according to claim 5, it is characterized in that, the upper surface (34) of described camshaft bearing support (3) is lower to face (41) laminating with described camshaft cover cap (4), engages at upper the first hydraulic fluid port forming of described lower edge face (41) with the internal oil passages that makes described camshaft cover cap (4) with the described oilhole (32) of described camshaft bearing support (3); The inner side of described engine cylinder cover (1) is formed with step surface (11), the internal oil passages of described engine cylinder cover (1) is formed with the second hydraulic fluid port on described step surface (11), the lower surface (35) of described camshaft bearing support (3) and the laminating of the step surface (11) of described engine cylinder cover (1), to make described the second hydraulic fluid port engage with the described oilhole (32) of described camshaft bearing support (3).
8. according to the VVT oil feeding line structure of the motor described in any one in claim 5-7, it is characterized in that, described oil feeding line structure also comprises draws oily support (2), this draws oily support (2) and is installed on the outer surface of described engine cylinder cover (1), on the relative interior edge face (21) of the described outer surface with described engine cylinder cover (1) that draws oily support (2), be formed with and draw oil groove (22), the internal oil passages of described engine cylinder cover (1) is formed with oil outlet (7) and filler opening (8) on described outer surface, this oil outlet (7) is connected by the described oil groove (22) that draws with filler opening (8).
9. the VVT oil feeding line structure of motor according to claim 8, it is characterized in that, the described filler opening (8) on the outer surface of described engine cylinder cover (1) is connected with described the second hydraulic fluid port on the step surface (11) of described engine cylinder cover (1).
10. motor, is characterized in that, this motor comprises the VVT oil feeding line structure according to the motor described in any one in claim 5 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210431755.8A CN103790665B (en) | 2012-11-01 | 2012-11-01 | Camshaft bearing support, the VVT oil feeding line structure of engine and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210431755.8A CN103790665B (en) | 2012-11-01 | 2012-11-01 | Camshaft bearing support, the VVT oil feeding line structure of engine and engine |
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| Publication Number | Publication Date |
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| CN103790665A true CN103790665A (en) | 2014-05-14 |
| CN103790665B CN103790665B (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210431755.8A Active CN103790665B (en) | 2012-11-01 | 2012-11-01 | Camshaft bearing support, the VVT oil feeding line structure of engine and engine |
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Citations (7)
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| US5161495A (en) * | 1989-07-14 | 1992-11-10 | Yamaha Hatsudoki Kabushiki Kaisha | Lubrication arrangement for engine |
| JP2004092567A (en) * | 2002-09-02 | 2004-03-25 | Mazda Motor Corp | Variable valve system of engine |
| CN101482044A (en) * | 2008-12-22 | 2009-07-15 | 奇瑞汽车股份有限公司 | Engine camshaft bearing cover |
| CN101749064A (en) * | 2009-12-29 | 2010-06-23 | 奇瑞汽车股份有限公司 | Camshaft bearing structure for engine |
| CN101975096A (en) * | 2010-10-20 | 2011-02-16 | 奇瑞汽车股份有限公司 | First bearing cover of engine camshaft |
| CN102052118A (en) * | 2009-10-26 | 2011-05-11 | 通用汽车环球科技运作公司 | Engine assembly including secondary oil pump and pump mounting structure |
| CN202023603U (en) * | 2011-02-18 | 2011-11-02 | 广州汽车集团股份有限公司 | Camshaft front bearing cap of motor |
-
2012
- 2012-11-01 CN CN201210431755.8A patent/CN103790665B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5161495A (en) * | 1989-07-14 | 1992-11-10 | Yamaha Hatsudoki Kabushiki Kaisha | Lubrication arrangement for engine |
| JP2004092567A (en) * | 2002-09-02 | 2004-03-25 | Mazda Motor Corp | Variable valve system of engine |
| CN101482044A (en) * | 2008-12-22 | 2009-07-15 | 奇瑞汽车股份有限公司 | Engine camshaft bearing cover |
| CN102052118A (en) * | 2009-10-26 | 2011-05-11 | 通用汽车环球科技运作公司 | Engine assembly including secondary oil pump and pump mounting structure |
| CN101749064A (en) * | 2009-12-29 | 2010-06-23 | 奇瑞汽车股份有限公司 | Camshaft bearing structure for engine |
| CN101975096A (en) * | 2010-10-20 | 2011-02-16 | 奇瑞汽车股份有限公司 | First bearing cover of engine camshaft |
| CN202023603U (en) * | 2011-02-18 | 2011-11-02 | 广州汽车集团股份有限公司 | Camshaft front bearing cap of motor |
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| CN103790665B (en) | 2016-09-07 |
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Effective date of registration: 20180508 Address after: No. 188, Miyun District, Miyun District, Beijing, Beijing Patentee after: Beijing treasure Car Co., Ltd. Address before: 102206, Beijing, Shahe Town, Changping District Road, sand Yang Patentee before: Beiqi Futian Automobile Co., Ltd. |
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Address after: No. 188, Miyun District, Miyun District, Beijing, Beijing Patentee after: Beijing baowo Automobile Co., Ltd Address before: No. 188, Miyun District, Miyun District, Beijing, Beijing Patentee before: Beijing treasure Car Co., Ltd. |
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Effective date of registration: 20210419 Address after: 102206, Beijing, Shahe, Changping District Town, Sha Yang Road, Lao Wan Village North Patentee after: BEIQI FOTON MOTOR Co.,Ltd. Address before: No. 188, Miyun District, Miyun District, Beijing, Beijing Patentee before: Beijing baowo Automobile Co.,Ltd. |