CN202391580U - Automobile cylinder body capable of avoiding fatigue crack - Google Patents
Automobile cylinder body capable of avoiding fatigue crack Download PDFInfo
- Publication number
- CN202391580U CN202391580U CN2011204233271U CN201120423327U CN202391580U CN 202391580 U CN202391580 U CN 202391580U CN 2011204233271 U CN2011204233271 U CN 2011204233271U CN 201120423327 U CN201120423327 U CN 201120423327U CN 202391580 U CN202391580 U CN 202391580U
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- CN
- China
- Prior art keywords
- cylinder
- water jacket
- cylinder body
- cylinder barrel
- fatigue crack
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- 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.)
- Expired - Fee Related
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a cylinder body structure, in particular to an automobile cylinder body capable of avoiding a fatigue crack. The automobile cylinder body capable of avoiding a fatigue crack comprises a cylinder barrel (3) and a water jacket (5) arranged near the cylinder barrel (3); a bolt hole (1) connected with a cylinder cover is arranged above the water jacket (5); and the inner wall of the cylinder barrel (3) between the bolt hole (1) and the water jacket (5) is provided with a reinforcing rib (2) which carries out directional decomposition to vertical acting force borne by the cylinder barrel (3). After the above technical scheme is adopted, because the reinforcing rib arranged on the inner wall of the cylinder barrel between the bolt hole and the water jacket can carry out directional decomposition to vertical acting force borne by the cylinder barrel, the upward tensile force of the cylinder cover and the downward tensile force of the main baring cover are prevented from converging in one direction, the stressed points are dispersed on the outer wall of the water jacket of the cylinder body, and the part of the main bearing pedestal on the cylinder body, where a cam axle hole is arranged, is protected from fatigue crack. The cylinder body structure has simple structure.
Description
Technical field
The utility model relates to the block structure in a kind of automobile, relates in particular to a kind of Automobile air cylinder body of avoiding fatigue crack.
Background technique
Cylinder block is the main body of motor, and it fuses each cylinder and crankcase, is the support framework that piston, bent axle and other part and accessories are installed.Cylinder block is generally cast with gray cast iron, and the cylindrical cavity on cylinder block top is called cylinder barrel, combines to form jointly the firing chamber with the cylinder head bottom surface.The cylinder block lower end links to each other with main bearing cap, the common main bearing seat that holds crankshaft main journal that forms.Between bent axle cylinder block and the cylinder head, all be connected between cylinder block and the main bearing cap with bolt; Because in the firing chamber is fuel combustion and exergonic place; Acute variation is all taking place in pressure and temperature constantly; The rapid change of this pressure and temperature all is applied on the parts such as cylinder body, cylinder cap, piston, and it finally is to make main bearing cap that the trend of downward motion arranged that the power of piston is applied to connecting rod, bent axle again indirectly, and cylinder head has the upwards trend of motion.Therefore cylinder body, cylinder cap and main bearing cap all should have enough strength and stiffness, and the structure of the attachment portion between cylinder body and cylinder cap, cylinder body and the main bearing cap also should be reasonable, bears the huge pulling force of exergonic moment.And cylinder body should have good cooling performance, around cylinder barrel, arranges cooling jacket, so that let cooling water take away the heat of barrel at any time.
Be furnished with stiffening rib between cylinder bolt hole lower end and the cylinder barrel cooling jacket, bear jointly with cylinder barrel because the fuel combustion expansion stroke to the power of chamber wall, prevents that cylinder barrel is because of stressed excessive the distortion.Stiffening rib lower end, cylinder head bolt place connects place, cylinder barrel cooling jacket outer wall water hole; Along reaching water-jacket outer wall and camshaft hole wall connecting part under the straight line, be a force bearing point, stressed concentrating; The downward pulling force of adding main bearing cap also reaches here, causes fatigue fracture through regular meeting.
Summary of the invention
Be to solve the deficiency that exists in the existing technology, the utility model provides the Automobile air cylinder body of the fatigue crack avoided that a kind of pressure of explosion during to engine operation decomposes, and when removing stress concentration point, has avoided the cylinder block cracking effectively.
For realizing above-mentioned purpose; The Automobile air cylinder body of the fatigue crack avoided of the utility model; Comprise cylinder barrel, be arranged on the water jacket in the cylinder barrel; Above water jacket, be provided with the bolt hole that connects cylinder cap, on the cylinder barrel outer wall between bolt hole and the water jacket, be provided with the stiffening rib that the suffered vertical direction active force of cylinder barrel travel direction is decomposed.
As the qualification to aforesaid way, second body that described stiffening rib is connected by first body of vertical setting, with first body is formed described second body and the setting of the first body non-rectilinear.
As the further qualification to aforesaid way, described second body is to gather around two branch support arms pulling outside the water hole of water jacket to form.
As the further qualification to aforesaid way, described minute support arm is symmetrical set with respect to the water hole of water jacket.
Adopt technique scheme; Because the stiffening rib that on the inner wall of cylinder between bolt hole and the water jacket, is provided with can decompose the suffered vertical direction active force of cylinder barrel travel direction; The pulling force of having avoided cylinder head to make progress overlaps in one direction with the downward pulling force of main bearing cap; Force bearing point is dispersed on the water-jacket outer wall of cylinder body, has avoided on the cylinder body main bearing seat to open the camshaft hole place and fatigue fracture occurred, it is simple in structure.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further to specify:
Fig. 1 is the plan view of the utility model;
Fig. 2 is that A-A among Fig. 1 is to view;
Fig. 3 is that B-B among Fig. 2 is to view.
Among the figure:
1, bolt hole; 2, stiffening rib; 21, first body; 22, divide support arm; 3, cylinder barrel; 4, water hole; 5, water jacket.
Embodiment
By Fig. 1, shown in Figure 2; The Automobile air cylinder body of the fatigue crack avoided of the utility model; Comprise cylinder barrel 3, be arranged on the other water jacket 5 of cylinder barrel 3; On the cylinder barrel above the water jacket 53, be provided with the bolt hole 1 that connects cylinder cap, said structure is existing structure, and the utility model is on cylinder barrel 3 outer walls between bolt hole 1 and the water jacket 5, to be provided with the stiffening rib 2 that cylinder barrel 3 suffered vertical direction active force travel directions are decomposed to the improvements of said structure.
Can clearly find out by shown in Figure 3; Second body that stiffening rib 2 in the present embodiment is connected by first body 21 of vertical setting, with first body 21 is formed; Second body is gathered around two branch support arms 22 of pulling outside the water hole 4 of water jacket 5 for symmetry and is formed; Through this structure Design, make 21 one-tenth non-rectilinear settings of second body and first body.Like this, when first body 21 is accepted the pressure of vertical direction, can this power be decomposed to both sides, concentrate to prevent stress point through two branch support arms 22.
Claims (4)
1. the Automobile air cylinder body that can avoid fatigue crack; Comprise cylinder barrel (3), be arranged on the other water jacket (5) of cylinder barrel (3); Be provided with the bolt hole (1) that connects cylinder cap in water jacket (5) top, it is characterized in that: on cylinder barrel (3) inwall between bolt hole (1) and the water jacket (5), be provided with the stiffening rib (2) that the suffered vertical direction active force of cylinder barrel (3) travel direction is decomposed.
2. the Automobile air cylinder body of avoiding fatigue crack according to claim 1; It is characterized in that: second body that described stiffening rib (2) is connected by first body (21) of vertical setting, with first body (21) is formed described second body and first body (21) non-rectilinear setting.
3. the Automobile air cylinder body of avoiding fatigue crack according to claim 2 is characterized in that: described second body is formed for gathering around two branch support arms (22) of pulling outside the water hole (4) of water jacket (5).
4. the Automobile air cylinder body of avoiding fatigue crack according to claim 3 is characterized in that: described minute support arm (22) be symmetrical set with respect to the water hole (4) of water jacket (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204233271U CN202391580U (en) | 2011-10-31 | 2011-10-31 | Automobile cylinder body capable of avoiding fatigue crack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204233271U CN202391580U (en) | 2011-10-31 | 2011-10-31 | Automobile cylinder body capable of avoiding fatigue crack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202391580U true CN202391580U (en) | 2012-08-22 |
Family
ID=46666510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204233271U Expired - Fee Related CN202391580U (en) | 2011-10-31 | 2011-10-31 | Automobile cylinder body capable of avoiding fatigue crack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202391580U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952546A (en) * | 2016-06-24 | 2016-09-21 | 奇瑞汽车股份有限公司 | Engine air cylinder body water jacket |
-
2011
- 2011-10-31 CN CN2011204233271U patent/CN202391580U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952546A (en) * | 2016-06-24 | 2016-09-21 | 奇瑞汽车股份有限公司 | Engine air cylinder body water jacket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20191031 |