CN203420792U - Water sealing jacket cylinder of engine - Google Patents
Water sealing jacket cylinder of engine Download PDFInfo
- Publication number
- CN203420792U CN203420792U CN201320512906.2U CN201320512906U CN203420792U CN 203420792 U CN203420792 U CN 203420792U CN 201320512906 U CN201320512906 U CN 201320512906U CN 203420792 U CN203420792 U CN 203420792U
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- cylinder
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- water
- casing wall
- cylinder body
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to the field of structural design of engines, in particular to a water sealing jacket cylinder of an engine. According to the water sealing jacket cylinder of the engine, a front cylinder hole and a rear cylinder hole which are adjacent to each other are directly connected from top to bottom through cylinder walls, and the rigid connection part between the front cylinder hole and the rear cylinder hole penetrates through the whole operating stroke of a piston. The water sealing jacket cylinder can well improve connection rigidness between the cylinder holes and other parts of the cylinder, thereby being capable of reducing deformation of the cylinder holes in the operating process.
Description
Technical field
The utility model relates to engine structure design field, specifically, relates to a kind of motor water shutoff cover cylinder body.
Background technique
Vehicle exhaust is worldwide subject to increasing attention to the impact of human health, and the motor vehicle emission limit value of various countries' Abgasgesetz regulation is more and more stricter for this reason.With respect to petrol engine, the content of particulate in diesel emissions (PM) is higher.PM is except the partial combustion from fuel, and some is from the burning of lubricant oil.And the PM amount producing because of lubricant oil burning has substantial connection with the distortion in cylinder hole.Cylinder bore deformation can cause poorly sealed to cylinder hole of piston ring, makes machine oil more easily from oil ring, scurry into combustion chambers burn on the one hand, can increase air leak amount on the other hand, and the oil level that channels to firing chamber by crankcase ventilation system is increased.From housing structure design, consider, cylinder hole amount of deformation in the course of the work and cylinder the hole around design of water jacket are closely related, in water jacket, cylinder hole is supported and the rib of reinforcement more, cylinder hole is more not easy to be out of shape.Traditionally, for the cooling needs in cylinder hole, can between two adjacent cylinder hole, design water jacket.But this design reduces near casing wall thickness water jacket between two cylinders, has reduced the coupling stiffness of cylinder hole and other parts of cylinder body, makes cylinder hole produce in the course of the work larger amount of deformation, has limited the further reduction of PM discharge amount.Therefore,, in order to meet the emission regulation demands of increasingly stringent, need to design the existing better cooling effect in a kind of cylinder hole, have again the engine cylinder-body of better rigidity, to reduce the PM discharge amount of motor.
Fig. 1 is the surface structure schematic diagram of motor half water shutoff cover cylinder body in prior art, in figure, direction shown in arrow is motor fore-and-aft direction, in figure, A, B, C, D represents four cylinder holes, the direction that cylinder hole upper surface is vertical with the direction of arrow in Fig. 1 is defined as motor left and right directions, 8 is cylinder body, Fig. 2 shows in Fig. 1 attachment portion, two adjacent cylinder hole (such as B, the attachment portion in C cylinder hole, attachment portion sectional structure and this figure in other adjacent cylinder holes are roughly the same) the sectional structure schematic diagram of casing wall, in figure, 1 is cylinder hole, left side water jacket, 2 is cylinder hole, right side water jacket, 3 is casing wall, casing wall top is the perforation water jacket 4 between cylinder hole, left side water jacket 1 and cylinder hole, right side water jacket 2, be in prior art, casing wall 3 is by half shutoff between the water jacket of cylinder hole, the left and right sides, casing wall 3 tops connect left and right sides water jacket by connecting water jacket 4, such structural design, it is evident that, owing to existing, connect water jacket 4, therefore before adjacent, rear cylinder hole is only rigidly connected in the some work stroke of piston, and this design makes to connect near water jacket 4 casing wall thickness and reduces, this structure makes cylinder hole produce in the course of the work larger amount of deformation, and then can cause poorly sealed to cylinder hole of piston ring.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, adapts to reality needs, and a kind of motor water shutoff cover cylinder body is provided, and the utility model is compared with half water shutoff cover cylinder body of prior art, and the amount of deformation in cylinder hole reduces greatly.
In order to realize the purpose of this utility model, the technical solution adopted in the utility model is:
A water shutoff cover cylinder body, is from top to bottom directly connected by casing wall between adjacent forward and backward two cylinder holes, and the part that is rigidly connected between described forward and backward two cylinder holes connects the whole working stroke of piston.
The thickness on described casing wall top is greater than the thickness of casing wall between half water shutoff cover cylinder body two adjacent cylinder hole.
The width of described casing wall is greater than the width of casing wall between motor half water shutoff cover cylinder body two adjacent cylinder hole.
On the casing wall in adjacent forward and backward cylinder hole, be also provided with left and right two oblique water holes and a straight water hole;
The upper end in oblique water hole, a described left side is directly communicated with cylinder cap water channel, and lower end is communicated with the upper end of cylinder hole, right side water jacket;
The upper end in described straight water hole is communicated with cylinder cap water channel, and lower end is communicated with cylinder hole, right side water jacket, and the upper end in the Yu Zhi water hole, upper end in oblique water hole, the described right side is communicated with, and lower end is communicated with the upper end of cylinder hole, left side water jacket.
Described left and right oblique water hole intersection vertically arranges and interconnects, and forms " X " type structure.
The beneficial effects of the utility model are:
1. the coupling stiffness of cylinder hole and other parts of cylinder body can be improved preferably, thereby cylinder hole amount of deformation in the course of the work can be reduced;
2. adopt the outlet hole structure design increasing, compensate the cooling loss causing due to water shutoff nested structure cylinder hole.
Accompanying drawing explanation
Fig. 1 is the surface structure schematic diagram of motor half water shutoff cover cylinder body in prior art;
Fig. 2 is the sectional structure schematic diagram of attachment portion, two adjacent cylinder hole casing wall in Fig. 1;
Fig. 3 is the sectional structure schematic diagram of the utility model motor water shutoff cover attachment portion, cylinder body two adjacent cylinder hole casing wall.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated:
Embodiment: referring to Fig. 3.
A water shutoff cover cylinder body, is from top to bottom directly connected by casing wall 3 between adjacent forward and backward two cylinder holes, and the part that is rigidly connected between described forward and backward two cylinder holes connects the whole working stroke of piston.
The thickness on described casing wall 3 tops is greater than the thickness of casing wall between half water shutoff cover cylinder body two adjacent cylinder hole.Here the thickness on the casing wall top of indication, refer to the position of the perforation water jacket 4 of half water shutoff cover cylinder body in prior art and near thickness thereof, and in the working stroke of the bottom of engine piston, the casing wall thickness of half water shutoff cover cylinder body is the same with the casing wall thickness of water shutoff cover cylinder body in the utility model.
The width of described casing wall 3 is greater than the width of casing wall between motor half water shutoff cover cylinder body two adjacent cylinder hole.
Because the utility model adopts totally enclosed being rigidly connected in the whole working stroke of piston, the cavity part that is original perforation water jacket 4 replaces with entity, and strengthened the width of casing wall 3, by above design improvement, the coupling stiffness of cylinder hole and other parts of cylinder body can be improved preferably, thereby cylinder hole amount of deformation in the course of the work can be reduced.
On the casing wall in adjacent forward and backward cylinder hole, be also provided with straight water hole 7, left and right two 5,6 and one, oblique water holes;
The upper end in oblique water hole 5, a described left side is directly communicated with cylinder cap water channel (not shown), and lower end is communicated with the upper end of cylinder hole, right side water jacket 2;
The upper end in described straight water hole 7 is communicated with cylinder cap water channel, and lower end is communicated with cylinder hole, right side water jacket 2, and the upper end in the Yu Zhi water hole, upper end 7 in oblique water hole 6, the described right side is communicated with, and lower end is communicated with the upper end of cylinder hole, left side water jacket 1.
Owing to having cancelled the setting that connects water jacket 4, and strengthen the width of casing wall 3, therefore, in order to compensate the cylinder hole cooling loss bringing due to this change in design, on the casing wall between two adjacent cylinder hole, increased by two oblique water holes and a straight water hole.When engine operation, cooling water will carry out cooling to forward and backward cylinder hole by the water hole increasing.
Described left and right oblique water hole 5,6 intersections vertically arrange and interconnect, and form " X " type structure.Water hole being designed to " X " type structure, is mainly the cylinder hole for both sides, cooling front and back, and in prior art, tiltedly water hole part is to connect water jacket 4, so design is equivalent to the oblique water hole intersecting, the refrigerating function loss in cylinder hole, front and back be compensated like this.
What embodiment of the present utility model announced is preferred embodiment; but be not limited to this; those of ordinary skill in the art; very easily according to above-described embodiment; understand spirit of the present utility model; and make different amplifications and variation, but only otherwise depart from spirit of the present utility model, all in protection domain of the present utility model.
Claims (5)
1. a motor water shutoff cover cylinder body, is characterized in that: between adjacent forward and backward two cylinder holes, by casing wall, from top to bottom directly connected, the part that is rigidly connected between described forward and backward two cylinder holes connects the whole working stroke of piston.
2. motor water shutoff cover cylinder body according to claim 1, is characterized in that: the thickness on described casing wall top is greater than the thickness of casing wall between half water shutoff cover cylinder body two adjacent cylinder hole.
3. motor water shutoff cover cylinder body according to claim 1, is characterized in that: the width of described casing wall is greater than the width of casing wall between motor half water shutoff cover cylinder body two adjacent cylinder hole.
4. cylinder body is overlapped in motor water shutoff according to claim 1, it is characterized in that:
On the casing wall in adjacent forward and backward cylinder hole, be also provided with left and right two oblique water holes and a straight water hole;
The upper end in oblique water hole, a described left side is directly communicated with cylinder cap water channel, and lower end is communicated with the upper end of cylinder hole, right side water jacket;
The upper end in described straight water hole is communicated with cylinder cap water channel, and lower end is communicated with cylinder hole, right side water jacket, and the upper end in the Yu Zhi water hole, upper end in oblique water hole, the described right side is communicated with, and lower end is communicated with the upper end of cylinder hole, left side water jacket.
5. motor water shutoff cover cylinder body according to claim 4, is characterized in that: described left and right oblique water hole intersection vertically arranges and interconnects, and forms " X " type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320512906.2U CN203420792U (en) | 2013-08-22 | 2013-08-22 | Water sealing jacket cylinder of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320512906.2U CN203420792U (en) | 2013-08-22 | 2013-08-22 | Water sealing jacket cylinder of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203420792U true CN203420792U (en) | 2014-02-05 |
Family
ID=50019891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320512906.2U Expired - Fee Related CN203420792U (en) | 2013-08-22 | 2013-08-22 | Water sealing jacket cylinder of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203420792U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388535A (en) * | 2013-08-22 | 2013-11-13 | 江铃汽车股份有限公司 | Engine water sealing jacket cylinder |
-
2013
- 2013-08-22 CN CN201320512906.2U patent/CN203420792U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388535A (en) * | 2013-08-22 | 2013-11-13 | 江铃汽车股份有限公司 | Engine water sealing jacket cylinder |
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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 |
Granted publication date: 20140205 Termination date: 20200822 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |