CN211524941U - Diesel engine water jacket exhaust pipe assembly - Google Patents
Diesel engine water jacket exhaust pipe assembly Download PDFInfo
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- CN211524941U CN211524941U CN202020059643.4U CN202020059643U CN211524941U CN 211524941 U CN211524941 U CN 211524941U CN 202020059643 U CN202020059643 U CN 202020059643U CN 211524941 U CN211524941 U CN 211524941U
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- water jacket
- exhaust pipe
- shell
- end cover
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Abstract
In order to solve the defects of the traditional exhaust pipe and achieve the purposes of saving cost, enhancing compactness and improving reliability and safety, the utility model provides a water jacket exhaust pipe assembly of a diesel engine, which is characterized by comprising a water jacket shell and a water jacket end cover, wherein the water jacket shell is a closed shell with a hollow interior, the water jacket shell is provided with a first water inlet and a first water outlet, one end of the water jacket shell close to a supercharger is provided with a gas outlet, and the outer side surface of the water jacket shell is provided with a plurality of gas inlets; the water jacket end cover is provided with a second water inlet and a second water outlet, the water jacket end cover is connected with the water jacket shell in a matching way, and a closed cavity is formed between the water jacket end cover and the water jacket shell; the inner exhaust pipe is located in a cavity formed by the water jacket end cover and the water jacket shell and consists of a plurality of bamboo-shaped short pipes, the short pipes are coaxially distributed and connected, the two adjacent short pipes are connected in a clearance fit mode, the short pipes are connected with a plurality of air inlets on the water jacket shell in a one-to-one correspondence mode, and one end of the inner exhaust pipe, which is used for air outlet, is connected with the air outlet.
Description
Technical Field
The utility model relates to an engine parts technical field, in particular to diesel engine water jacket blast pipe assembly.
Background
Most marine engines in the market at present require to be provided with a water jacket exhaust pipe, and because the temperature of an exhaust port of the marine diesel engine is usually higher in the operation process, and the cabin space environment is smaller, the ambient environment temperature is easily caused to be too high, the working temperature of the engine and the service life of each part are influenced, the life safety is influenced, and certain potential safety hazards exist, so that the temperature of the surface of the engine needs to be reduced according to the current ship inspection requirements.
Traditional diesel engine water jacket blast pipe adopts the shell tailor-welding to add interior blast pipe tailor-welding mostly, and this type of structure has following drawback: 1. the exhaust pipe adopts splice welding shell body department to produce crackle easily, influences the cooling effect of engine, and the machining precision requires highly. 2. The traditional water jacket exhaust pipe adopts a welding mode, and the whole consistency and the sealing performance of the outer pipe of the traditional water jacket exhaust pipe are poor. 3. The cooling water of the traditional water jacket exhaust pipe is in direct contact with the inner exhaust pipe, and a large amount of heat energy is consumed during cooling. 4. The traditional tailor-welded exhaust pipe is troublesome to maintain, high in maintenance cost and low in universality.
Disclosure of Invention
In order to solve the not enough of traditional blast pipe existence, in order to realize the purpose of practicing thrift the cost, strengthening the compactedness, improving reliability and security simultaneously, the utility model provides a diesel engine water jacket blast pipe assembly, the technical scheme of adoption as follows:
a diesel engine water jacket exhaust pipe assembly is characterized by mainly comprising:
the water jacket shell is a closed shell with a hollow interior, a first water inlet and a first water outlet are formed in the water jacket shell, an air outlet is formed at one end close to the supercharger, and a plurality of air inlets are formed in the outer side surface of the water jacket shell;
the water jacket end cover is a closed shell with a hollow inner part, a second water inlet and a second water outlet are formed in the water jacket end cover, the water jacket end cover is connected with the water jacket shell in a matched mode, and a closed cavity is formed between the water jacket end cover and the water jacket shell;
the inner exhaust pipe is positioned in a cavity formed by the water jacket end cover and the water jacket shell and consists of a plurality of bamboo-shaped short pipes, the short pipes are coaxially distributed and connected, the two adjacent short pipes are in clearance fit connection, the short pipes are connected with a plurality of air inlets on the water jacket shell in a one-to-one correspondence mode, and one end of the inner exhaust pipe, which is used for air outlet, is connected with the air outlet.
Preferably, a sealing gasket is further arranged between the water jacket end cover and the water jacket shell.
Preferably, the upper end of the water jacket shell is provided with a plurality of upper end mounting lugs.
Preferably, a plurality of side surface mounting lugs are arranged on the upper end surface of the water jacket end cover.
Preferably, a supercharger mounting hole and a supercharger water jacket mounting hole are further formed in one end, close to the supercharger, of the water jacket shell.
Preferably, a plurality of inner exhaust pipe mounting holes are formed in the inner side face of the water jacket shell, and fixing bolts which correspond to the inner exhaust pipe mounting holes one to one are fixedly connected to the inner exhaust pipes.
Preferably, an exhaust pipe assembly mounting hole is formed in the outer side surface of the water jacket shell.
The beneficial effects of the utility model reside in that:
1. the utility model adopts an integral casting processing mode, has good bearing capacity, high universality and low maintenance cost, greatly improves the ambient temperature, reduces the leakage risk of the exhaust pipe and improves the performance of the engine;
2. the inner exhaust pipes of the utility model are in clearance fit through bamboo joint type connection, and the exhaust gas leaks to the outer cavity between the inner exhaust pipes and the water jacket shell to reach a certain inner balance and then is self-sealed, so that the structure is simple to process, and the processing cost is lower;
3. the utility model discloses be the air between water jacket casing and the interior exhaust pipe, directly not contact between cooling water and the interior exhaust pipe, compact structure, intensity is high, has reduced the energy loss of engine, has improved interior exhaust pipe's life.
Drawings
FIG. 1 is a schematic view of the structure of the present invention
FIG. 2 is a rear view of FIG. 1
FIG. 3 is the structural explosion diagram of the present invention
FIG. 4 is a rear view of the water jacket end cap
The exhaust pipe assembly comprises a water jacket shell, an air inlet, an exhaust pipe assembly mounting hole, an air inlet, an air outlet, an air inlet, an air outlet, an.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The exhaust pipe assembly of the diesel engine water jacket shown in fig. 1-4 mainly comprises a water jacket shell 1, a water jacket end cover 2 and an inner exhaust pipe 3, wherein the water jacket shell 1 and the water jacket end cover 2 are both shells with hollow interiors, and the inner exhaust pipe 3 is positioned in a cavity formed by the water jacket shell 1 and the water jacket end cover 2.
Specifically, 6 air inlets 101 communicated with an engine exhaust pipe are uniformly distributed on the rear side surface of the water jacket shell 1 from left to right, and 3 exhaust pipe assembly mounting holes 101 are arranged near each air inlet and used for mounting an engine exhaust pipe assembly, three first mounting lugs 103 are uniformly distributed at the upper end of the water jacket shell 1 from left to right, used for supporting the components such as an intercooler and the like, the left end and the right end are respectively provided with a first water inlet 104 and a first water outlet 105 which are communicated with the inner cavity, and the left end is also provided with an air outlet 109 and a supercharger water jacket mounting hole 108 for mounting a supercharger water jacket shell, the air outlet 109 is communicated with the air outlet of the inner exhaust pipe 3, and besides, the left part and the right part of the front side surface of the water jacket shell 1 are respectively provided with a second water outlet 106 and a second water inlet 107 which are communicated with the inner cavity of the water jacket shell 1, and the upper part of the front side surface of the water jacket shell 1 is provided with 6 inner exhaust pipe mounting holes 1010 which are uniformly distributed in the left-right direction.
The water jacket end cover 2 is a plate-shaped structure with a cavity arranged inside, a water jacket end cover water inlet 201 and a water jacket end cover water outlet 202 which are connected with an inner cavity of the water jacket end cover 2 are respectively arranged at the left part and the right part of the inner side surface of the water jacket end cover 2, the water jacket end cover water inlet 201 and the water jacket end cover water outlet 202 are respectively in one-to-one correspondence with the second water outlet 106 and the second water inlet 107 and are used for communicating the inner cavities of the water jacket shell 1 and the water jacket end cover 2, and a plurality of second mounting lugs 203 are further arranged on the outer side surface of the water jacket end cover 2.
Interior exhaust pipe 3 is bamboo joint formula structure, specific interior exhaust pipe 3 comprises 1 interior exhaust return bend 302 and 5 interior exhaust straight tubes 301, interior exhaust return bend 302 is the elbow structure, be located overall structure's right side, one end links to each other with water jacket casing 1 leftmost air inlet 101, the other end links to each other with interior exhaust straight tube 301 clearance fit, interior exhaust straight tube 301 is the three-way pipe structure, clearance fit links to each other between the two interior exhaust straight tubes 301 that link to each other, and every interior exhaust straight tube 301 links to each other with air inlet 101 one-to-one respectively, the interior exhaust straight tube 301 that is located the rightmost side links to each other with gas outlet 109, in addition, all be equipped with fixing bolt 303 on interior exhaust straight tube 301 and the interior exhaust return bend 302 including, be used for with interior exhaust pipe 3 fixed connection in the upper portion of water jacket casing 1 medial surface.
A sealing gasket 4 is arranged between the water jacket shell 1 and the water jacket end cover 2 and used for sealing the inner cavity, and a plurality of mounting holes are arranged around the water jacket shell 1 and the water jacket end cover 2 and fixedly connected with the water jacket shell 1 and the water jacket end cover 2 through bolts and nuts.
The air outlet end of the engine exhaust pipe assembly is communicated with the air inlet 101, the left end of the water jacket shell 1 is connected with a supercharger water jacket shell, and engine gas sequentially passes through the inner exhaust bent pipe 302 and the inner exhaust branch pipe 301 and finally enters the supercharger volute from the air outlet 109; cooling water enters the cavity in the water jacket shell 1 from the first water inlet 104 of the water jacket of the supercharger, then part of the cooling water enters the water jacket end cover 2 through the second water outlet 106 and the water jacket end cover water inlet 201, the cooling water in the water jacket end cover 1 flows into the water jacket shell 1 from the water jacket end cover water outlet 202 at the right end, and finally flows out through the first water outlet 105, and the whole cooling cycle is completed.
The utility model discloses simple structure is compact, bulk strength is high, easy dismounting, vibration and low in noise, has improved the environment around the engine, has improved the life of blast pipe and engine, and the maintenance cost is low, fine play thermal-insulated protection and supporting role.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements can be made, and these improvements should also be regarded as the protection scope of the present invention.
Claims (7)
1. A diesel engine water jacket exhaust pipe assembly is characterized by mainly comprising:
the water jacket shell is a closed shell with a hollow interior, a first water inlet and a first water outlet are formed in the water jacket shell, an air outlet is formed at one end close to the supercharger, and a plurality of air inlets are formed in the outer side surface of the water jacket shell;
the water jacket end cover is a closed shell with a hollow inner part, a second water inlet and a second water outlet are formed in the water jacket end cover, the water jacket end cover is connected with the water jacket shell in a matched mode, and a closed cavity is formed between the water jacket end cover and the water jacket shell;
interior exhaust pipe, interior exhaust pipe fixed connection is in the cavity that water jacket end cover and water jacket casing formed, and interior exhaust pipe comprises a plurality of bamboo-shaped nozzle stub, and the coaxial distribution of a plurality of nozzle stub links to each other, and clearance fit connects between two adjacent nozzle stubs to a plurality of nozzle stub links to each other with a plurality of air inlet one-to-one on the water jacket casing, and interior exhaust pipe one end of giving vent to anger links to each other with the gas outlet.
2. The diesel engine water jacket exhaust pipe assembly according to claim 1, wherein a gasket is further provided between the water jacket end cover and the water jacket housing.
3. The exhaust pipe assembly for the water jacket of the diesel engine as set forth in claim 1, wherein said water jacket shell has a plurality of upper end mounting lugs at an upper end thereof.
4. The exhaust pipe assembly of the diesel engine water jacket according to claim 1, wherein a plurality of side mounting lugs are arranged on the upper end face of the water jacket end cover.
5. The diesel engine water jacket exhaust pipe assembly according to claim 1, wherein a supercharger mounting hole and a supercharger water jacket mounting hole are further formed in the water jacket housing at the end close to the supercharger.
6. The exhaust pipe assembly of the diesel engine water jacket according to claim 1, wherein a plurality of inner exhaust pipe mounting holes are formed in the inner side surface of the water jacket shell, and fixing bolts corresponding to the inner exhaust pipe mounting holes in a one-to-one mode are fixedly connected to the inner exhaust pipes.
7. The diesel engine water jacket exhaust pipe assembly according to claim 1, wherein an exhaust pipe assembly mounting hole is provided on an outer side surface of the water jacket housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020059643.4U CN211524941U (en) | 2020-01-13 | 2020-01-13 | Diesel engine water jacket exhaust pipe assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020059643.4U CN211524941U (en) | 2020-01-13 | 2020-01-13 | Diesel engine water jacket exhaust pipe assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211524941U true CN211524941U (en) | 2020-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020059643.4U Active CN211524941U (en) | 2020-01-13 | 2020-01-13 | Diesel engine water jacket exhaust pipe assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211524941U (en) |
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2020
- 2020-01-13 CN CN202020059643.4U patent/CN211524941U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221228 Address after: 311232 No. 699, Hongtai Sixth Road, hongken farm, Xiaoshan Economic and Technological Development Zone, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee after: CHINA NATIONAL HEAVY DUTY TRUCK GROUP HANGZHOU ENGINE Co.,Ltd. Address before: 250000 tangwangshan Road North fanwang Road West, Shengjing, Zhangqiu City, Jinan City, Shandong Province Patentee before: China National Heavy Duty Truck Group Jinan Power Co.,Ltd. |
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| TR01 | Transfer of patent right |