CN212508505U - Water-cooling exhaust pipe device of multi-cylinder diesel engine - Google Patents
Water-cooling exhaust pipe device of multi-cylinder diesel engine Download PDFInfo
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- CN212508505U CN212508505U CN202021342737.9U CN202021342737U CN212508505U CN 212508505 U CN212508505 U CN 212508505U CN 202021342737 U CN202021342737 U CN 202021342737U CN 212508505 U CN212508505 U CN 212508505U
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Abstract
The utility model discloses a multi-cylinder diesel engine water-cooling blast pipe device, include: the exhaust pipe comprises a first exhaust channel and a second exhaust channel which are arranged in a separated mode, the first exhaust channel is provided with three first air inlets and a first exhaust outlet, the second exhaust channel is provided with three second air inlets and a second exhaust outlet, and the first exhaust outlet and the second exhaust outlet are arranged adjacently and are positioned in the middle of the water-cooling exhaust pipe device; the blast pipe cooling water course includes: the exhaust pipe cooling water channel comprises six water inlets, a cooling water cavity and a water outlet, the inner wall of the exhaust pipe cooling water channel, the outer wall of the first exhaust channel and the outer wall of the second exhaust channel jointly enclose the cooling water cavity, and the water outlet is located at the end of the water-cooling exhaust pipe device. The utility model discloses a multi-cylinder diesel engine water-cooling blast pipe device has exhaust and cooling dual function, can reduce the blast pipe temperature by a wide margin to waste gas convection collision when having avoided the exhaust does benefit to the turbo charger pressure boost.
Description
Technical Field
The utility model relates to a diesel engine technical field especially relates to a multi-cylinder diesel engine water-cooling blast pipe device.
Background
The diesel engine serving as a compression ignition engine is widely applied to the fields of engineering machinery and ship electricity due to large compression ratio, high thermal efficiency and good economical efficiency, the rotating speed and the power of the diesel engine need to be greatly improved in order to meet wide market demands, higher requirements are provided for the strengthening degree of the diesel engine, and the temperature of an exhaust pipe rises rapidly along with the increase of the rotating speed and the power of the diesel engine, and the reliability and the economical efficiency of the diesel engine are influenced due to overhigh temperature of the exhaust pipe.
Disclosure of Invention
For overcoming the deficiencies of the prior art, the utility model aims to solve the technical problem that a multi-cylinder diesel engine water-cooling blast pipe device is provided, has exhaust and cooling dual function, reduces the blast pipe temperature by a wide margin.
In order to solve the above problem, the utility model adopts the following technical scheme:
a water-cooling exhaust pipe device of a multi-cylinder diesel engine comprises: the exhaust pipe comprises a first exhaust channel and a second exhaust channel which are separately arranged, the first exhaust channel is provided with three first air inlets and a first exhaust outlet, the second exhaust channel is provided with three second air inlets and a second exhaust outlet, and the first exhaust outlet and the second exhaust outlet are adjacently arranged and positioned in the middle of the water-cooling exhaust pipe device;
the exhaust pipe cooling water passage includes: the cooling water cavity is formed by enclosing the inner wall of the exhaust pipe cooling water channel, the outer wall of the first exhaust channel and the outer wall of the second exhaust channel, and the water outlet is located at the end of the water-cooling exhaust pipe device.
Preferably, the three first air inlets and the three second air inlets are uniformly distributed on one side surface of the multi-cylinder diesel engine water-cooling exhaust pipe device, and the distance between every two adjacent first air inlets is L1The distance between two adjacent second air inlets is L1The distance between the adjacent first air inlet and the second air inlet is L1Said L is1The value is 131 mm-139 mm.
Preferably, the six water inlets are uniformly distributed on one side surface of the multi-cylinder diesel engine water-cooling exhaust pipe device.
Preferably, the first exhaust outlet, the second exhaust outlet and the water outlet are located on the same side face of the multi-cylinder diesel engine water-cooling exhaust pipe device.
Preferably, a water filter interface is arranged on the side face opposite to the first air inlet and the second air inlet, and the water filter interface is positioned at one end, close to the water outlet, of the water-cooling exhaust pipe device.
The utility model adopts the above technical scheme's beneficial effect is:
the utility model discloses a multi-cylinder diesel engine water-cooling blast pipe device separately sets up the first exhaust passage and the second exhaust passage of blast pipe and is not linked together, and waste gas convection current collision when having avoided the exhaust reduces the energy attenuation of exhaust gas of arranging, consequently, gets into turbo charger from first exhaust outlet and second exhaust outlet exhaust waste gas and does benefit to the pressure boost.
The cooling water in the cooling water channel exchanges heat with the high-temperature waste gas in the first exhaust channel and the second exhaust channel to absorb the heat of the high-temperature waste gas, the temperature of the cooling water rises to reduce the temperature of the waste gas in the exhaust pipe, and the cooling water channel, the first exhaust channel and the second exhaust channel are separated by solid wall thicknesses and are not communicated with each other, so that the water outlet passage of a cylinder cover is met, and the effect of cooling the waste gas in the exhaust pipe is achieved.
In addition, first exhaust passage is provided with three first air inlet and first exhaust outlet, second exhaust passage is provided with three second air inlet and second exhaust outlet, with first exhaust outlet and the adjacent middle part that sets up and be located water-cooling blast pipe device of second exhaust outlet, make the distance of first air inlet and first exhaust outlet shorten and then make the total length of first exhaust passage shorten, and the same is said, the total length of second exhaust passage shortens, it is smooth and easy to make waste gas follow first exhaust passage and second exhaust passage discharge, reduced the temperature rise of cooling water in the cooling water course when having reduced the temperature of blast pipe, prevent that the cooling water temperature is too high to influence the complete machine performance of diesel engine.
Drawings
FIG. 1 is a schematic perspective view of a water-cooled exhaust pipe device of a multi-cylinder diesel engine according to the present invention;
FIG. 2 is a view of the water-cooled exhaust pipe assembly of the multi-cylinder diesel engine shown in FIG. 1;
FIG. 3 is a view of the water-cooled exhaust pipe device of the multi-cylinder diesel engine shown in FIG. 1 in the direction B;
FIG. 4 is a cross-sectional view taken along line E-E of the water-cooled exhaust pipe device of the multi-cylinder diesel engine of FIG. 3;
FIG. 5 is a sectional view taken along line F-F of the water-cooled exhaust pipe device of the multi-cylinder diesel engine of FIG. 3;
in the figure: 11-a first exhaust channel, 111 a-a first air inlet, 111 b-a first air inlet, 111C-a first air inlet, 112-a first exhaust outlet, 12-a second exhaust channel, 121 a-a second air inlet, 121 b-a second air inlet, 121C-a second air inlet, 122-a second exhaust outlet, 2-exhaust pipe cooling water channel, 21 a-water inlet, 21 b-water inlet, 21C-water inlet, 21D-water inlet, 21 e-water inlet, 21 f-water inlet, 22-cooling water cavity, 23-water outlet, 3-water filter interface, 4-water filter, C-a first side surface, D-a second side surface.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 5, the water-cooled exhaust pipe device for the multi-cylinder diesel engine comprises: the exhaust pipe comprises an exhaust pipe 1 and an exhaust pipe cooling water channel 2, wherein the exhaust pipe comprises a first exhaust channel 11 and a second exhaust channel 12 which are arranged in a separated mode, the first exhaust channel 11 is provided with three first air inlets (111a,111b and 111c) and a first exhaust outlet 112, the second exhaust channel 12 is provided with three second air inlets (121a,121b and 121c) and a second exhaust outlet 122, and the first exhaust outlet 112 and the second exhaust outlet 122 are arranged adjacently and located in the middle of the water-cooled exhaust pipe device;
the utility model discloses a multi-cylinder diesel engine water-cooling blast pipe device separately sets up the first exhaust passage 11 and the second exhaust passage 12 of blast pipe and is not linked together, and waste gas convection current collision when having avoided the exhaust reduces the energy attenuation of exhaust gas, consequently, gets into turbo charger from first exhaust outlet and second exhaust outlet exhaust waste gas and does benefit to the turbo charger pressure boost. With the adjacent setting of first exhaust outlet and second exhaust outlet and be located the middle part of water-cooling blast pipe device, make three first air inlet (111a,111b,111c) shorten and then make the total length of first exhaust passage shorten to the distance of first exhaust outlet 112, the same is true, the total length of second vent passage shortens, it is smooth and easy to make waste gas follow first exhaust passage and second vent passage exhaust passage discharge, the temperature rise of cooling water in the cooling water course has been reduced when having reduced the temperature of blast pipe, prevent that the too high complete machine performance that influences the diesel engine of cooling water temperature.
The exhaust pipe cooling water passage 2 includes: the six water inlets (21a,21b,21c,21d,21e,21f), the cooling water cavity 22 and the water outlet 23 are arranged, the six water inlets (21a,21b,21c,21d,21e,21f) are communicated with the cylinder cover, the inner wall of the exhaust pipe cooling water channel 2, the outer wall of the first exhaust channel 11 and the outer wall of the second exhaust channel 12 jointly enclose the cooling water cavity 22, and the water outlet 23 is arranged at the end part of the water-cooled exhaust pipe device.
As shown in FIG. 2, three first air inlets (111a,111b,111c) and three second air inlets (121a,121b,121c) are uniformly distributed on one end surface of the water-cooled exhaust pipe device of the multi-cylinder diesel engine, and the distance between two adjacent first air inlets is L1The distance between two adjacent second air inlets is L1The distance between the adjacent first air inlet and the second air inlet is L1，L1The value is 131 mm-139 mm. Six water inlets are uniformly distributed on one end surface of the water-cooling exhaust pipe device of the multi-cylinder diesel engine. The three first air inlets (111a,111b,111C) and the three second air inlets (121a,121b,121C) are located on the same side with the six water inlets (21a,21b,21C,21D,21e,21f), i.e., on the first side C in fig. 2, and the first exhaust outlet 112, the second exhaust outlet 122 and the water outlet 23 are located on the same side of the multi-cylinder diesel engine water-cooled exhaust pipe device, i.e., on the second side D in fig. 3.
The exhaust pipe 1 and the exhaust pipe cooling water channel 2 of the multi-cylinder diesel engine water-cooling exhaust pipe device of the utility model are mutually isolated and not communicated, cooling water flows through the outer wall of the air channel to complete heat exchange with exhaust, so that the cooling water takes away part of the heat of the exhaust gas, and the purpose of reducing the exhaust temperature is achieved; the exhaust cooling device has the advantages that the water outlet passage of the cylinder cover is met, the exhaust cooling effect is achieved, and the dual functions of the cylinder cover water outlet main pipe and the diesel engine with the exhaust pipe arranged on the same side can be realized.
And a water filter interface 3 is arranged on the end surface opposite to the three first air inlets (111a,111b,111c) and the three second air inlets (121a,121b,121c), and the water filter interface 3 is positioned at one end of the water-cooled exhaust pipe device close to the water outlet 23. The water filter 4 is connected to the water filter connector 3, and the water filter 4 has a cooling water filtering effect and prevents dust and sundries from being accumulated to influence cooling. Moreover, the scale formed by heating the cooling water is prevented from being accumulated on the outer wall of the air passage, the heat insulation effect on the heat exchange efficiency of the gas and the cooling water is prevented, the structure has a remarkable filtering effect on the cooling scale through a durability test, and the exhaust temperature of the diesel engine reaches an expected effect.
The utility model discloses a multi-cylinder diesel engine water-cooling blast pipe device, through 1000 hours experimental verification, the row's temperature reduces by a wide margin, and the performance obtains very big promotion.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the scope of the invention, which is to be construed in accordance with the principles and spirit of the invention.
Claims (5)
1. A water-cooling exhaust pipe device of a multi-cylinder diesel engine comprises: an exhaust pipe and an exhaust pipe cooling water passage, characterized in that,
the exhaust pipe comprises a first exhaust channel and a second exhaust channel which are arranged separately, the first exhaust channel is provided with three first air inlets and a first exhaust outlet, the second exhaust channel is provided with three second air inlets and a second exhaust outlet, and the first exhaust outlet and the second exhaust outlet are arranged adjacently and are positioned in the middle of the water-cooling exhaust pipe device;
the exhaust pipe cooling water passage includes: the cooling water cavity is formed by enclosing the inner wall of the exhaust pipe cooling water channel, the outer wall of the first exhaust channel and the outer wall of the second exhaust channel, and the water outlet is located at the end of the water-cooling exhaust pipe device.
2. The water-cooled exhaust pipe device of the multi-cylinder diesel engine according to claim 1, wherein three of the first air inlets and three of the second air inlets are uniformly distributed on one side surface of the water-cooled exhaust pipe device of the multi-cylinder diesel engine, and a distance between two adjacent first air inlets is L1The distance between two adjacent second air inlets is L1The distance between the adjacent first air inlet and the second air inlet is L1Said L is1The value is 131 mm-139 mm.
3. The multi-cylinder diesel engine water-cooling exhaust pipe device of claim 2, wherein the six water inlets are uniformly distributed on one side surface of the multi-cylinder diesel engine water-cooling exhaust pipe device.
4. The multi-cylinder diesel engine water-cooling exhaust pipe device of claim 3, wherein the first exhaust outlet, the second exhaust outlet and the water outlet are located on the same side of the multi-cylinder diesel engine water-cooling exhaust pipe device.
5. The water-cooled exhaust pipe device of the multi-cylinder diesel engine according to claim 4, wherein a water filter interface is provided on a side surface opposite to the first and second air inlets, and the water filter interface is located at an end of the water-cooled exhaust pipe device close to the water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021342737.9U CN212508505U (en) | 2020-07-09 | 2020-07-09 | Water-cooling exhaust pipe device of multi-cylinder diesel engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021342737.9U CN212508505U (en) | 2020-07-09 | 2020-07-09 | Water-cooling exhaust pipe device of multi-cylinder diesel engine |
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| CN212508505U true CN212508505U (en) | 2021-02-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114517729A (en) * | 2022-02-24 | 2022-05-20 | 一汽解放汽车有限公司 | Vehicle exhaust manifold and car |
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- 2020-07-09 CN CN202021342737.9U patent/CN212508505U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114517729A (en) * | 2022-02-24 | 2022-05-20 | 一汽解放汽车有限公司 | Vehicle exhaust manifold and car |
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