CN101144439A - Main shaft holder structure for gasoline engine cylinder - Google Patents
Main shaft holder structure for gasoline engine cylinder Download PDFInfo
- Publication number
- CN101144439A CN101144439A CNA2007101661232A CN200710166123A CN101144439A CN 101144439 A CN101144439 A CN 101144439A CN A2007101661232 A CNA2007101661232 A CN A2007101661232A CN 200710166123 A CN200710166123 A CN 200710166123A CN 101144439 A CN101144439 A CN 101144439A
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- CN
- China
- Prior art keywords
- main bearing
- cylinder body
- upper cylinder
- engine
- main
- 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.)
- Pending
Links
- 238000005461 lubrication Methods 0.000 claims abstract description 4
- 238000005266 casting Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000003014 reinforcing effect Effects 0.000 abstract 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses an engine main bearing seat structure used for a vehicle, and the engine main bearing seat structure comprises an upper cylinder body, a lower cylinder body and a main bearing cap bolt, wherein, the upper cylinder body and the cylinder body form a main bearing hole, two mutually connected reinforcing ribs are arranged on the upper cylinder in an integrated way, one reinforcing rib of the two reinforcing ribs is provided with a main bearing lubrication slanting oil gallery and a main bearing cap bolt hole, and the other reinforcing rib is only provided with a main bearing cap bolt hole. The upper cylinder body adopts the reinforcing rib and undercutting design, the casting and the processing technology are optimized, simultaneously the severeness of the engine is improved, the weight of the engine is greatly improved, and the overall economics of the engine is improved.
Description
Technical field
The present invention relates to the petrol engine main bearing seat structure.
Background technique
At present, in engine of motor vehicle cylinder block manufacturing technology field, particularly in the manufacturing technology field of engine for automobile cylinder block, the crankcase main bearing seat of cylinder block bottom all adopts following design, because the cylinder detonation pressure is bigger, all adopts the form of sealing in the main bearing upper end or add that stiffening rib strengthens the intensity of crankshaft main bearing pedestal.And adopt this structure what not to have improve to bearing support intensity, and increased the weight of complete machine on the contrary, influenced machine performance; Also retrained simultaneously compact integral structure, processing cost also improves greatly.
In the prior art, the crankcase main bearing seat of cylinder block bottom adopts closed pattern, and attached then plurality of strengthening ribs plays reinforing function to main bearing seat.But in the moment of cylinder fuel air Mixture blast, cylinder is not that all part is all stressed.In addition, in existing design,, do like this and can't satisfy,, increased difficulty but give in casting and the processing even satisfied designing requirement reluctantly if cylinder core distance is very little.At first want the thickness of strict control intermediate portion on casting, its less important mismatch that prevents is responsible for causing cylinder body to scrap, even the situation of complete machine inefficacy.In the processing, increase instead angle operation of cylinder hole, the phenomenon of avoiding honing to interfere.
Summary of the invention
Technical problem to be solved by this invention is, proposes a kind of petrol engine cylinder main bearing seat, both solved the strength problem of crankshaft main bearing pedestal, alleviated the weight of complete machine simultaneously again, and casting and technology capability have also obtained very big improvement.
The technological scheme that the present invention will provide is, a kind of gasoline engine cylinder main bearing seat, comprise upper cylinder body, lower cylinder body and main bonnet bolt, upper cylinder body and lower cylinder body form main bearing hole, it is characterized in that: its upper cylinder body has two interconnective stiffening ribs integrally formed, wherein be provided with main bearing lubrication oil duct and main bonnet bolt hole in the stiffening rib, only be provided with main bonnet bolt hole in another stiffening rib.
Technological scheme of the present invention comprises that further this oil leab adopts oblique oil duct.
Main bonnet bolt hole and oblique oil duct and the integrated mode of stiffening rib have been adopted in described upper cylinder body and cylinder main bearing hole attachment portion, remove the subjective part that does not stress of thinking, pass through cae analysis, also confirmed to coincide as design, remove region of interest, more help ventilating in the crankcase and alleviating complete machine weight, be easy to casting and processing simultaneously.
Technological scheme provided by the present invention compared with prior art, by emptying the bottom of upper cylinder body main bearing seat unit, can satisfy the requirement of modern engine design compactness like this, simultaneously, because the main bearing bottom is empty, processing technology etc. is also simplified, reduced cylinder block processing, improved motor and made Economy.Also as preceding described, in casting, also obtained optimization simultaneously.So the cost of complete machine has also obtained very big control.
Description of drawings
Below in conjunction with drawings and Examples, the present invention is further illustrated.
Fig. 1 is an exploded perspective view of the present invention;
Fig. 2 is a main bearing seat of the present invention unit cut away view;
Fig. 3 is the schematic representation of the main bearing seat unit of current design;
Wherein: 1 is main bonnet bolt, and 2 is lower cylinder body, and 3 is main box, and 4 is upper cylinder body, and 5,6 is the upper cylinder body stiffening rib, and 7,8 empty part for upper cylinder body.
Embodiment
Shown in Fig. 1-2, a kind of gasoline engine cylinder main bearing seat, comprise upper cylinder body, main bonnet bolt and lower cylinder body, described engine spindle bearing comprises the upper cylinder body 4 and the lower cylinder body 2 that is connected with described upper cylinder body 4, again by upper cylinder body 4 and lower cylinder body 2 formed main bearing holes 3, empty a part of join domain between described main bearing hole 3 and the described upper cylinder body 4 simultaneously.Described upper cylinder body 4 and described lower cylinder body 2 forms main bearing holes, and described upper cylinder body 4 will be emptied with described spindle hole attachment portion, is designed to one and only interconnected by two stiffening ribs 5,6 with described main bearing seat and upper cylinder body.Described stiffening rib 5 is together integrated and form by the Main bearing bolt hole, described stiffening rib 6 is together integrated and form by main bearing seat oilhole and Main bearing bolt hole, and be connected with enlargement of crankcase is to lean on the part that contacts with lower cylinder body 1, also be the horizontal stiffening rib of main bearing simultaneously, the other parts part all adopts the mode of emptying, and emptying part is respectively 7 and 8.
Target of the present invention is to utilize minimum material, by structural design, the intensity of cylinder-block skirt and main bearing is improved, meanwhile, and simplified structure design, the difficulty that reduces the cylinder block casting and process, the manufacturing Economy of raising motor.
Claims (2)
1. petrol engine main bearing seat structure, comprise upper cylinder body (4), lower cylinder body (2) and main bonnet bolt (1), upper cylinder body (4) and lower cylinder body (2) form main bearing hole, it is characterized in that: its upper cylinder body (4) is provided with two interconnective stiffening ribs (5,6) and integrally formed, wherein be provided with main bearing lubrication oil duct and main bonnet bolt hole in the stiffening rib (6), only be provided with main bonnet bolt hole in another stiffening rib (5).
2. according to the petrol engine main bearing seat structure of claim 1, it is characterized in that: the main bearing lubrication oil duct adopts oblique oil duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101661232A CN101144439A (en) | 2007-11-09 | 2007-11-09 | Main shaft holder structure for gasoline engine cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101661232A CN101144439A (en) | 2007-11-09 | 2007-11-09 | Main shaft holder structure for gasoline engine cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101144439A true CN101144439A (en) | 2008-03-19 |
Family
ID=39207134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101661232A Pending CN101144439A (en) | 2007-11-09 | 2007-11-09 | Main shaft holder structure for gasoline engine cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101144439A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192043A (en) * | 2011-04-29 | 2011-09-21 | 奇瑞汽车股份有限公司 | Main bearing pedestal of engine and manufacturing method thereof |
| CN102297204A (en) * | 2011-07-26 | 2011-12-28 | 奇瑞汽车股份有限公司 | Main bearing cover and main bearing seat fitting structure of engine |
| CN102297038A (en) * | 2011-09-09 | 2011-12-28 | 奇瑞汽车股份有限公司 | Main bearing seat of engine |
-
2007
- 2007-11-09 CN CNA2007101661232A patent/CN101144439A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192043A (en) * | 2011-04-29 | 2011-09-21 | 奇瑞汽车股份有限公司 | Main bearing pedestal of engine and manufacturing method thereof |
| CN102297204A (en) * | 2011-07-26 | 2011-12-28 | 奇瑞汽车股份有限公司 | Main bearing cover and main bearing seat fitting structure of engine |
| CN102297038A (en) * | 2011-09-09 | 2011-12-28 | 奇瑞汽车股份有限公司 | Main bearing seat of engine |
| CN102297038B (en) * | 2011-09-09 | 2013-05-22 | 奇瑞汽车股份有限公司 | Main bearing seat of engine |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080319 |