CN201696157U - Steam cylinder cover of marine diesel engine - Google Patents
Steam cylinder cover of marine diesel engine Download PDFInfo
- Publication number
- CN201696157U CN201696157U CN2010201503556U CN201020150355U CN201696157U CN 201696157 U CN201696157 U CN 201696157U CN 2010201503556 U CN2010201503556 U CN 2010201503556U CN 201020150355 U CN201020150355 U CN 201020150355U CN 201696157 U CN201696157 U CN 201696157U
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- CN
- China
- Prior art keywords
- cooling water
- water chamber
- diesel engine
- cylinder head
- water
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a steam cylinder cover of a marine diesel engine with uniform cooling. The circumferential direction of the steam cylinder is uniformly provided with a circle of sinking holes as first cooling water cavities (1) and a circle of water outlet holes (2) communicated with the first cooling water cavities (1); the openings of the first cooling water cavities (1) are positioned in a water inlet cavity (3) enclosed by a water sleeve (7) and the outer wall of the steam cylinder cover; the water inlet cavity (3) is communicated with a water inlet pipe; the circumferential direction of the steam cylinder is also uniformly provided with another circle of sinking holes as second cooling water cavities (1) which are positioned above the first cooling water cavities (1), and are staggered with the first cooling water cavities (1); inlets of the water outlet holes (2) are positioned in the water inlet cavity (3), and outlets thereof are positioned in a water outlet cavity (5) enclosed by an exhaust valve shell (8) of the diesel engine and the inner wall of the steam cylinder cover; and the water outlet cavity (5) is communicated with a main water outlet hole (6).
Description
Technical field
The utility model relates to the marine diesel engine technical field, specifically is a kind of cylinder head of marine diesel engine.
Background technique
Cylinder head is a kind of fastening piece of diesel engine, also is the constituent element of burning chamber of diesel engine.The common feature of the cylinder head of marine diesel engine various types is a complex structure, and the duct is more, wall unevenness.It not only is subjected to the strong effect of high temperature and high pressure gas, and periodically bear higher mechanical load and heat load, also be subjected to the influence local uneven in temperature that causes because of cooling water, simultaneously also because bolt pretightening makes cylinder head bear pressure stress, and make cylinder head be subjected to flecition with the gaseous-pressure acting in conjunction, in addition, also be easy to generate stress and concentrate etc. at the changes of section place, just because of cylinder head abominable operating conditions like this, cause cylinder head to be easy to lose efficacy and damage.
In order to keep the mechanical property of cylinder head, reduce its inefficacy spoilage, it is carried out rational and effective cooling is very necessary, the appropriate design of the coolant flow channel that this must be by the countercylinder lid realizes.The coolant flow channel of present cylinder head is fairly simple, promptly enclose counterbore as cooling water chamber in the circumferentially even distribution one of cylinder head, the opening of cooling water chamber is arranged in the water-inlet cavity that the outer wall by water jacket and cylinder head surrounds mutually, this water-inlet cavity is communicated with intake pipe, and the bottom of cooling water chamber connects osculum, and osculum is general vertical with cooling water chamber, promptly vertical with counterbore, though the said structure water velocity is fast, the cooling of countercylinder lid is even inadequately, has reduced the mechanical property of cylinder head.
The model utility content
The technical problems to be solved in the utility model is that a kind of cylinder head that cools off uniform marine diesel engine is provided.
The technical solution of the utility model is, the cylinder head of the utility model marine diesel engine, its the circle counterbore that circumferentially evenly distributes is as first cooling water chamber, what be connected with first cooling water chamber one irises out the water hole, the opening of first cooling water chamber is arranged in the water-inlet cavity that the outer wall by water jacket and cylinder head surrounds mutually, this water-inlet cavity is communicated with intake pipe, its another circle counterbore that circumferentially also evenly distributes is as second cooling water chamber, second cooling water chamber is positioned at the top of first cooling water chamber, and both are dislocatedly distributed; The import of described osculum is arranged in water-inlet cavity, and the outlet of described osculum is arranged in the water chamber that the inwall by the exhaust valve casing of diesel engine and cylinder head surrounds mutually, and water chamber is communicated with total osculum.
After adopting said structure, the utility model compared with prior art, have the following advantages: because its another circle counterbore that circumferentially also evenly distributes is as second cooling water chamber, second cooling water chamber is positioned at the top of first cooling water chamber, and both are dislocatedly distributed, thereby form two-layer cooling water chamber, strengthen so cooling water covers the cylinder head scope, the water-inlet cavity volume increases, and makes the cylinder head cooling evenly; Again because the import of described osculum is arranged in water-inlet cavity, the outlet of described osculum is arranged in the water chamber that the inwall by the exhaust valve casing of diesel engine and cylinder head surrounds mutually, water chamber is communicated with total osculum, certainly will cause osculum to pass cylinder head obliquely like this, the outer wall and the inwall that are communicated with cylinder head, there is a water chamber again in inwall, thereby realizes cylinder head is evenly cooled off.To sum up, the utlity model has the cooling advantage of uniform.
As improvement, the shape of the head of described counterbore all adopts sphere, can prevent that like this incrustation scale or foreign material from retaining at the head of counterbore, more helps the raising and the enforcement of the utility model performance.
Description of drawings
Fig. 1 is the A-A sectional view (not drawing water jacket and exhaust valve casing) of the cylinder head of the utility model marine diesel engine.
Fig. 2 is the B-B sectional view of the cylinder head of the utility model marine diesel engine.
Fig. 3 is the C-C sectional view (not drawing water jacket) of the cylinder head of the utility model marine diesel engine.
Shown in the figure, 1, first cooling water chamber, 2, osculum, 3, water-inlet cavity, 4, second cooling water chamber, 5, water chamber, 6, total osculum, 7, water jacket, 8, exhaust valve casing.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
The cylinder head of the utility model marine diesel engine, its the circle counterbore that circumferentially evenly distributes is as first cooling water chamber 1, what be connected with first cooling water chamber 1 one irises out water hole 2, the opening of first cooling water chamber 1 is arranged in the water-inlet cavity 3 that the outer wall by water jacket 7 and cylinder head surrounds mutually, this water-inlet cavity 3 is communicated with intake pipe, its another circle counterbore that circumferentially also evenly distributes is positioned at the top of first cooling water chamber 1 as second cooling water chamber, 4, the second cooling water chambeies 4, and both are dislocatedly distributed; The import of described osculum 2 is arranged in water-inlet cavity 3, and the outlet of described osculum 2 is arranged in the water chamber 5 that the inwall by the exhaust valve casing 8 of diesel engine and cylinder head surrounds mutually, and water chamber 5 is communicated with total osculum 6.
The shape of the head of described counterbore all adopts sphere.
In this example, described first cooling water chamber 1 and second cooling water chamber 4 all have 30 counterbores, and counterbore is parallel to each other.Osculum 2 is 41, and for ease of processing, osculum 2 is made up of two-part, and this form is common, does not add and gives unnecessary details.
Claims (2)
1. the cylinder head of a marine diesel engine, its the circle counterbore that circumferentially evenly distributes is as first cooling water chamber (1), what be connected with first cooling water chamber (1) one irises out water hole (2), the opening of first cooling water chamber (1) is arranged in the water-inlet cavity (3) that the outer wall by water jacket (7) and cylinder head surrounds mutually, this water-inlet cavity (3) is communicated with intake pipe, it is characterized in that, its another circle counterbore that circumferentially also evenly distributes is as second cooling water chamber (4), second cooling water chamber (4) is positioned at the top of first cooling water chamber (1), and both are dislocatedly distributed; The import of described osculum (2) is arranged in water-inlet cavity (3), and the outlet of described osculum (2) is arranged in the water chamber (5) that the inwall by the exhaust valve casing (8) of diesel engine and cylinder head surrounds mutually, and water chamber (5) is communicated with total osculum (6).
2. the cylinder head of marine diesel engine according to claim 1 is characterized in that, the shape of the head of described counterbore all adopts sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201503556U CN201696157U (en) | 2010-03-30 | 2010-03-30 | Steam cylinder cover of marine diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201503556U CN201696157U (en) | 2010-03-30 | 2010-03-30 | Steam cylinder cover of marine diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201696157U true CN201696157U (en) | 2011-01-05 |
Family
ID=43397398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201503556U Expired - Fee Related CN201696157U (en) | 2010-03-30 | 2010-03-30 | Steam cylinder cover of marine diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201696157U (en) |
-
2010
- 2010-03-30 CN CN2010201503556U patent/CN201696157U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20120330 |