CN202220672U - Cylinder cap cooling structure of four-stroke engine - Google Patents
Cylinder cap cooling structure of four-stroke engine Download PDFInfo
- Publication number
- CN202220672U CN202220672U CN2011202836185U CN201120283618U CN202220672U CN 202220672 U CN202220672 U CN 202220672U CN 2011202836185 U CN2011202836185 U CN 2011202836185U CN 201120283618 U CN201120283618 U CN 201120283618U CN 202220672 U CN202220672 U CN 202220672U
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- China
- Prior art keywords
- cooling water
- cooling
- cylinder head
- cylinder cap
- oil sprayer
- Prior art date
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- Expired - Lifetime
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a cylinder cap cooling structure of a four-stroke engine. An oil ejector sleeve is installed at the center of a cylinder cap, and four valve seats evenly distributed along the circumference are arranged around the oil ejector sleeve. The cylinder cap cooling structure is characterized in that a cooling water inlet is arranged at the bottom of the cylinder cap and used for guiding the cooling water flowing out from an engine body into the cylinder cap. Cooling water passages communicated with the cooling water inlet are arranged in the cylinder cap and distributed around the four valve seats. A cooling cavity for cooling an oil ejector and an air inlet/discharge passage is arranged around the oil ejector sleeve, the cooling cavity is arranged above the cooling water passages and communicated with the cooling water passages through a cooling water inlet passage, and the cooling water inlet passage is arranged around the oil ejector sleeve. A cooling water outlet for enabling the cooling water to flow out is arranged at the top of the cooling cavity. Mechanical load and thermal load capacity of the cylinder cap is greatly improved, and cooling to each part of the cylinder cap can be effectively completed.
Description
Technical field
The utility model belongs to technical field of engines, relates to a kind of cooling water trend and Structure Designing Problem of four stroke engine cylinder head, specifically is a kind of cylinder head cooling structure of four stroke engine.
Background technique
Along with the continuous development of engine technology, the reinforcing degree of motor continues to increase, and the mechanical load and the heat load that cause engine component to bear improve constantly, and how guaranteeing that engine component is worked has reliably become engineering department's difficult problem.Cylinder head is as the strength member of motor; On the motor that height is strengthened; Defectives such as crackle in use appear in the cylinder head of traditional experience design owing to heat load is too high through regular meeting, the intensity that how to adopt measure effectively to reduce its heat load assurance cylinder head has become the key issue that technical field of engines needs to be resolved hurrily.
Summary of the invention
The purpose of the utility model is to the deficiency in the cylinder head cooling structure design of the prior art; Thereby a kind of cylinder head cooling structure that is applicable to four stroke engine reasonable in design is provided; Promptly to the design of the turnover location arrangements of the cooling water channel shape and structure of cylinder head and cooling water; Through fluid analysis, the cooling structure that draws.
The technological scheme that provides according to the utility model: a kind of cylinder head cooling structure of four stroke engine; At the cylinder head center oil sprayer cover is housed; Around the oil sprayer cover, be provided with four circumferential equally distributed valve seats in edge; It is characterized in that: said cylinder head has cooling water intake on the bottom surface, and its cooling water that is used for body is come out is introduced cylinder head; Be provided with the cooling water channel that is connected with cooling water intake in the said cylinder head, cooling water channel is arranged in around four valve seats; Be provided with the cooling chamber that is used to cool off oil sprayer and import/exhaust road around the said oil sprayer cover, cooling chamber is positioned at the cooling water channel top, and is connected with cooling water channel through the cooling water inlet channel, near said cooling water inlet channel is arranged on around the oil sprayer cover; Said cooling chamber top offers the cooling water outlet that is used to cooling water flow out of.
As the further improvement of the utility model, the plane parallel at said cooling water channel place is in the cylinder head bottom surface.
As the further improvement of the utility model, said cooling water inlet channel has four, and their edges circumferentially are evenly distributed on around the oil sprayer cover, and the cooling water inlet channel is bottom-up to tilt to the oil sprayer cover.
As the further improvement of the utility model, said cooling water channel processes from the side of cylinder head, and the outer end of cooling water channel is with silently smothering shutoff.
The utility model compared with prior art; Advantage is: the utility model passes through fluid analysis; The cooling water channel shape and structure of cylinder head and the turnover position of cooling water are carried out appropriate design; Make the mechanical load and the heat load ability of cylinder head improve greatly, can efficiently accomplish cooling the cylinder head each several part; The cylinder head of the utility model can adopt casting, and production technology is simple, and yield rate improves.
Description of drawings
Fig. 1 is the cylinder head front view of the utility model.
Fig. 2 is the cylinder head plan view of the utility model.
Fig. 3 is that A-A among Fig. 2 is to sectional view.
Fig. 4 is that B-B among Fig. 3 is to sectional view.
Description of reference numerals: 1-cylinder head, 1a-cooling water intake, 1b-cooling water channel, 1c-cooling water inlet channel, 1d-cooling chamber, 1e-cooling water outlet, 2-oil sprayer cover, 3-silently, 4-valve seat.
Embodiment
To combine the embodiment in the accompanying drawing that the utility model is further described below.
Like Fig. 1 ~ shown in Figure 4, the oil sprayer cover 2 that is used to install oil sprayer is equipped with at said cylinder head 1 center, around oil sprayer cover 2, is provided with four circumferential equally distributed valve seats 4 in edge; Said cylinder head has cooling water intake 1a on 1 bottom surface, and its cooling water that is used for body is come out is introduced cylinder head 1; Be provided with the cooling water channel 1b that is connected with cooling water intake 1a in the said cylinder head 1, cooling water channel 1b is arranged in around four valve seats 4; Be provided with the cooling chamber 1d that is used to cool off oil sprayer and import/exhaust road around the said oil sprayer cover 2; Cooling chamber 1d is positioned at cooling water channel 1b top; And be connected with cooling water channel 1b through cooling water inlet channel 1c, near said cooling water inlet channel 1c is arranged on around the oil sprayer cover 2; Said cooling chamber 1d top offers the cooling water outlet 1e that is used to cooling water flow out of.
Like Fig. 1, Fig. 3, shown in Figure 4, described cooling water intake 1a processes from cylinder head 1 bottom surface.The plane parallel at said cooling water channel 1b place is in cylinder head 1 bottom surface, and cooling water channel 1b is that the side from cylinder head 1 processes, and the outer end of cooling water channel 1b is with silently 3 smothering shutoff.Said cooling water inlet channel 1c has four; They overlap around 2 along circumferentially being evenly distributed on oil sprayer; Cooling water inlet channel 1c processes from the hole direction that oil sprayer overlaps 2 tops is installed, and they are bottom-up to tilt to oil sprayer cover 2, thereby can ensure the cooling to oil sprayer cover 2.Said cooling chamber 1d and cooling water outlet 1e are the sandbox chambeies, can adopt casting.
During concrete work; Cooling water comes out from body, and four cooling water intake 1a on cylinder head 1 bottom surface get in the cylinder head 1, through cooling water channel 1b around the cylinder head 1 to center flow; Cylinder head 1 bottom is cooled off; Four cooling water inlet channel 1c around oil sprayer cover 2 get in the cooling chamber 1d then, and oil sprayer and import/exhaust road are cooled off, and flow out from cooling water outlet 1e at last; Get into water return pipeline, thereby accomplished cooling cylinder head 1 bottom, valve seat 4, oil sprayer and import/exhaust road.
Claims (4)
1. the cylinder head cooling structure of a four stroke engine; At cylinder head (1) center oil sprayer cover (2) is housed; Be provided with four circumferential equally distributed valve seats in edge (4) on every side at oil sprayer cover (2); It is characterized in that: said cylinder head (1) has cooling water intake (1a) on the bottom surface, and its cooling water that is used for body is come out is introduced cylinder head (1); Be provided with the cooling water channel (1b) that is connected with cooling water intake (1a) in the said cylinder head (1), cooling water channel (1b) is arranged in four valve seats (4) on every side; Said oil sprayer cover (2) is provided with the cooling chamber (1d) that is used to cool off oil sprayer and import/exhaust road on every side; Cooling chamber (1d) is positioned at cooling water channel (1b) top; And be connected with cooling water channel (1b) through cooling water inlet channel (1c), said cooling water inlet channel (1c) be arranged on oil sprayer cover (2) on every side near; Said cooling chamber (1d) top offers the cooling water outlet (1e) that is used to cooling water flow out of.
2. the cylinder head cooling structure of four stroke engine as claimed in claim 1 is characterized in that: the plane parallel at said cooling water channel (1b) place is in cylinder head (1) bottom surface.
3. the cylinder head cooling structure of four stroke engine as claimed in claim 1; It is characterized in that: said cooling water inlet channel (1c) has four; They are along circumferentially being evenly distributed on oil sprayer cover (2) all around, and cooling water inlet channel (1c) is bottom-up to tilt to oil sprayer cover (2).
4. the cylinder head cooling structure of four stroke engine as claimed in claim 1, it is characterized in that: said cooling water channel (1b) processes from the side of cylinder head (1), and the outer end of cooling water channel (1b) smothers shutoff with silently (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202836185U CN202220672U (en) | 2011-08-05 | 2011-08-05 | Cylinder cap cooling structure of four-stroke engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202836185U CN202220672U (en) | 2011-08-05 | 2011-08-05 | Cylinder cap cooling structure of four-stroke engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202220672U true CN202220672U (en) | 2012-05-16 |
Family
ID=46042699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202836185U Expired - Lifetime CN202220672U (en) | 2011-08-05 | 2011-08-05 | Cylinder cap cooling structure of four-stroke engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202220672U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337981A (en) * | 2011-08-05 | 2012-02-01 | 无锡开普动力有限公司 | Cylinder cover cooling structure of four-stroke engine |
| CN102733985A (en) * | 2012-06-13 | 2012-10-17 | 东风朝阳朝柴动力有限公司 | Cylinder cover with fuel injector sleeve |
-
2011
- 2011-08-05 CN CN2011202836185U patent/CN202220672U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337981A (en) * | 2011-08-05 | 2012-02-01 | 无锡开普动力有限公司 | Cylinder cover cooling structure of four-stroke engine |
| WO2013020357A1 (en) * | 2011-08-05 | 2013-02-14 | 无锡开普动力有限公司 | Structure for cooling cylinder head of four-stroke engine |
| CN102733985A (en) * | 2012-06-13 | 2012-10-17 | 东风朝阳朝柴动力有限公司 | Cylinder cover with fuel injector sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20191011 Granted publication date: 20120516 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20201120 Granted publication date: 20120516 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120516 |