CN111894755B - Cooling device of double-layer homodromous flow type diesel engine - Google Patents
Cooling device of double-layer homodromous flow type diesel engine Download PDFInfo
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- CN111894755B CN111894755B CN202010696383.6A CN202010696383A CN111894755B CN 111894755 B CN111894755 B CN 111894755B CN 202010696383 A CN202010696383 A CN 202010696383A CN 111894755 B CN111894755 B CN 111894755B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
- F02F1/14—Cylinders with means for directing, guiding or distributing liquid stream
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/004—Cylinder liners
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
- F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream
Abstract
The application relates to a double-deck syntropy formula diesel engine's that flows cooling device relates to diesel engine technical field, and it includes: a cylinder liner; the cylinder body is sleeved outside the cylinder sleeve, and a first cooling cavity and a second cooling cavity which are distributed at intervals up and down are formed between the cylinder body and the cylinder sleeve; a first cooling cavity water inlet and a first cooling cavity water outlet are formed in two sides of the first cooling cavity respectively; a second cooling cavity water inlet and a second cooling cavity water outlet are formed in two sides of the second cooling cavity respectively; the water inlet of the second cooling cavity and the water inlet of the first cooling cavity are positioned on the same side of the cylinder body; and the cylinder cover water inlet channel is arranged on the cylinder body, one end of the cylinder cover water inlet channel is communicated with the cylinder cover, and the other end of the cylinder cover water inlet channel is communicated with the water outlet of the first cooling cavity and the water outlet of the second cooling cavity. The upper part and the lower part of the cylinder sleeve can be fully cooled, so that the thermal deformation of the cylinder sleeve is reduced; the cylinder sleeve is not in interference contact with the upper part and the lower part of the cylinder block, so that the cylinder sleeve cannot be assembled and deformed, and the reliable durability of an engine is not influenced.
Description
Technical Field
The application relates to the technical field of diesel engines, in particular to a cooling device of a double-layer cocurrent flowing type diesel engine.
Background
With the improvement of the power and emission requirements of the engine, the heat load of the engine is greatly improved, and the requirement on the cooling capacity of an engine body is higher and higher, particularly the cooling of a ring of a piston of the engine. Currently, a cooling cavity is generally formed between a cylinder liner and a cylinder block of an engine to dissipate heat of the cylinder liner.
In the related art, the engine body cooling cavity comprises an engine body and a cylinder sleeve, the outer wall of the top of the cylinder sleeve and the inner wall of the engine body define a first cooling cavity capable of guiding cooling liquid to cool a first ring position of a piston of the cylinder sleeve, and the outer wall of the bottom of the cylinder sleeve is in transition fit with the inner wall of the engine body; a first liquid inlet channel for leading cooling liquid into the first cooling cavity and a first liquid outlet channel for leading out the cooling liquid in the first cooling cavity are formed in the machine body. The organism cooling chamber that this scheme provided sets up first cooling chamber through the outside at the cylinder jacket top to the outer wall that makes the top is direct and the coolant liquid contact, and the outer wall of the bottom of cylinder jacket then direct and the inner wall contact of organism, thereby make the top of cylinder jacket become wet-type cylinder jacket, the bottom becomes dry-type cylinder jacket, makes the mode of wet dry more than whole cylinder jacket and organism cooperation.
However, the upper part of the cylinder sleeve is of a wet structure, the cylinder sleeve is fully cooled, but the lower part of the cylinder sleeve adopts a dry cylinder sleeve structure, cooling water indirectly cools the cylinder sleeve through cooling the cylinder block, and the cylinder sleeve is insufficiently cooled; the lower part of the cylinder sleeve adopts a dry cylinder sleeve structure, and the interference contact force between the cylinder body and the cylinder sleeve is large, so that the cylinder sleeve deforms greatly, and the reliability and durability of the engine are influenced.
Disclosure of Invention
The embodiment of the application provides a cooling device of double-deck syntropy flow formula diesel engine to solve the cylinder liner lower part and adopt dry cylinder liner structure among the correlation technique, the cooling of cylinder liner lower part is not enough, and the interference contact force is big between cylinder block and the cylinder liner, leads to the cylinder liner to warp big, influences the problem of the reliable durability of engine.
In a first aspect, there is provided a cooling device for a dual-deck cocurrent flow type diesel engine, comprising:
a cylinder liner;
the cylinder body is sleeved outside the cylinder sleeve, and a first cooling cavity and a second cooling cavity which are distributed at intervals up and down are formed between the cylinder body and the cylinder sleeve; a first cooling cavity water inlet and a first cooling cavity water outlet are formed in two sides of the first cooling cavity respectively; a second cooling cavity water inlet and a second cooling cavity water outlet are formed in two sides of the second cooling cavity respectively; the water inlet of the second cooling cavity and the water inlet of the first cooling cavity are positioned on the same side of the cylinder body;
and the cylinder cover water inlet channel is arranged on the cylinder body, one end of the cylinder cover water inlet channel is communicated with the cylinder cover, and the other end of the cylinder cover water inlet channel is communicated with the first cooling cavity water outlet and the second cooling cavity water outlet in a homogeneous phase.
In some embodiments, the cross-sectional area of the first cooling chamber water inlet is greater than the cross-sectional area of the second cooling chamber water inlet.
In some embodiments, the cross-sectional area of the second cooling chamber water inlet is greater than the cross-sectional area of the second cooling chamber water outlet.
In some embodiments, the cooling device further includes a water outlet cavity, the water outlet cavity is disposed on the cylinder block, and the first cooling cavity water inlet and the second cooling cavity water inlet are both communicated with the water outlet cavity.
In some embodiments, the cooling device further comprises a converging cavity, the converging cavity is arranged on the cylinder block, and the cylinder head water inlet channel is communicated with the first cooling cavity water outlet and the second cooling cavity water outlet through the converging cavity.
In some embodiments, the second cooling cavity water outlet is communicated with the confluence cavity through a regulating channel.
In some embodiments, the adjusting channel comprises a first adjusting channel and a second adjusting channel which are communicated with each other, and the first adjusting channel is vertically arranged and is connected with the confluence cavity; the second adjusting channel is horizontally arranged and is connected with the water outlet of the second cooling cavity.
In some embodiments, the cooling device further comprises a sealing plug, and the sealing plug seals one end of the second adjusting passage away from the water outlet of the second cooling cavity.
In some embodiments, the cooling device further comprises a cylinder cover water outlet channel and a water return cavity, and two ends of the cylinder cover water outlet channel are respectively communicated with the cylinder cover and the water return cavity.
In some embodiments, the inner wall of the cylinder block is convexly arranged along the circumferential direction to form a bearing platform; the outer wall of cylinder jacket sets up along the circumferencial direction protrudingly form with the pressure portion of holding of plummer looks adaptation, pressure hold the portion pressure hold in on the plummer to with the cylinder jacket with the space between the cylinder block separates and forms first cooling chamber with the second cooling chamber.
The beneficial effect that technical scheme that this application provided brought includes: the cylinder sleeve of the cooling device of the double-layer cocurrent flow type diesel engine has no interference contact with the upper part and the lower part of the cylinder body, the cylinder sleeve cannot be deformed, the reliable durability of the engine is not influenced, and the cooling mode of cocurrent flow finally uses all the cooling liquid flowing out from the first cooling cavity and the second cooling cavity to cool the cylinder cover, so that the first cooling cavity and the second cooling cavity can be cooled simultaneously, the using amount of the cooling liquid supplied to the first cooling cavity and the second cooling cavity is less, the cooling efficiency is improved, the using amount of the cooling liquid is reduced, and the cooling device of the embodiment of the application is simpler in casting and assembling process by adopting the mode that the water inlet of the first cooling cavity and the water inlet of the second cooling cavity are arranged at the same side and the water outlet of the first cooling cavity and the water outlet of the second cooling cavity are arranged at the same side, the cooling performance is improved under the condition of ensuring the lowest manufacturing cost.
The embodiment of the application provides a cooling device of a double-layer cocurrent flow type diesel engine, a cylinder body is sleeved outside a cylinder sleeve, and a first cooling cavity and a second cooling cavity which are vertically distributed at intervals are formed between the cylinder body and the cylinder sleeve, so that the upper part and the lower part of the cylinder sleeve are of a wet structure, a mode that a water inlet of the first cooling cavity and a water inlet of the second cooling cavity are arranged at the same side is adopted, cooling liquid simultaneously flows into the first cooling cavity and the second cooling cavity from the water inlet of the first cooling cavity and the water inlet of the second cooling cavity respectively, so that the first cooling cavity and the second cooling cavity are cooled simultaneously, and then the cooling liquid flows out of the first cooling cavity and the second cooling cavity through a water outlet of the first cooling cavity and a water outlet of the second cooling cavity respectively; and finally, the cooling liquid flowing out of the first cooling cavity water outlet and the second cooling cavity water outlet flows into the cylinder cover through the cylinder cover water inlet channel to cool the cylinder cover, so that the double-layer cocurrent flow type cooling flow path is completed. Therefore, the cylinder sleeve does not have interference contact with the upper portion and the lower portion of the cylinder block, the cylinder sleeve cannot be deformed, the reliable durability of an engine is not affected, and the cooling mode of cocurrent flow finally enables all cooling liquid flowing out of the first cooling cavity and the second cooling cavity to be used for cooling the cylinder cover, so that the first cooling cavity and the second cooling cavity can be cooled simultaneously, the using amount of the cooling liquid supplied to the first cooling cavity and the second cooling cavity is less, the cooling efficiency is improved, the using amount of the cooling liquid is reduced, the first cooling cavity water inlet and the second cooling cavity water inlet are arranged on the same side, and the first cooling cavity water outlet and the second cooling cavity water outlet are arranged on the same side, so that the casting and assembling process of the cooling device is simpler, and the manufacturing cost is greatly reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a longitudinal sectional view of a cooling device of a two-layer cocurrent flow type diesel engine according to an embodiment of the present application;
FIG. 2 is a schematic view of the flow of the cooling fluid in the first cooling chamber;
FIG. 3 is a schematic view of the flow of the cooling fluid in the second cooling chamber;
fig. 4 is a schematic diagram of a cooling device of a two-layer cocurrent flow type diesel engine according to an embodiment of the present application.
In the figure: 1. a cylinder liner; 10. a pressing part; 2. a cylinder block; 20. a first cooling chamber; 200. a first cooling chamber water inlet; 201. a first cooling cavity water outlet; 21. a second cooling chamber; 210. a second cooling chamber water inlet; 211. a water outlet of the second cooling cavity; 22. a bearing table; 23. a manifold chamber; 4. a water outlet cavity; 3. a cylinder cover water inlet channel; 5. a cylinder head; 6. adjusting the channel; 60. a first regulating passage; 61. a second regulating passage; 7. a sealing plug; 8. a cylinder cover water outlet channel; 9. a water return cavity.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, the embodiment of the present application provides a cooling device for a dual-layer cocurrent flow type diesel engine, which includes a cylinder liner 1 and a cylinder block 2, the cylinder liner 1 is sleeved outside a piston, the cylinder block 2 is sleeved outside the cylinder liner 1, and two first cooling cavities 20 and two second cooling cavities 21 which are distributed at intervals are formed between the cylinder liner 1 and the cylinder liner 1, so that the upper portion and the lower portion of the cylinder liner 1 are both wet structures, and there is no interference contact between the upper portion and the lower portion of the cylinder liner 1 and the cylinder block 2, which does not cause the cylinder liner 1 to deform. The first cooling cavity 20 and the second cooling cavity 21 are both annular structures, as shown in fig. 2, a first cooling cavity water inlet 200 and a first cooling cavity water outlet 201 are respectively formed in two sides of the first cooling cavity 20, cooling liquid enters the first cooling cavity 20 from the first cooling cavity water inlet 200, is divided into two streams, flows around in the annular first cooling cavity 20, finally converges and flows out from the first cooling cavity water outlet 201; referring to fig. 3, a second cooling cavity water inlet 210 and a second cooling cavity water outlet 211 are respectively formed in two sides of the second cooling cavity 21, and the cooling liquid enters the second cooling cavity 21 from the second cooling cavity water inlet 210, is divided into two streams, flows around the annular second cooling cavity 21, finally converges, and flows out from the second cooling cavity water outlet 211. The second cooling cavity water inlet 210 and the first cooling cavity water inlet 200 are located on the same side of the cylinder block 2, and the first cooling cavity water outlet 201 and the second cooling cavity water outlet 211 are located on the same side of the cylinder block 2; a water pump is adopted to supply water to the cooling device, cooling liquid simultaneously flows into the first cooling cavity 20 and the second cooling cavity 21 from the first cooling cavity water inlet 200 and the second cooling cavity water inlet 210 respectively so as to cool the first cooling cavity 20 and the second cooling cavity 21 simultaneously, and then flows out of the first cooling cavity 20 and the second cooling cavity 21 through the first cooling cavity water outlet 201 and the second cooling cavity water outlet 211 respectively; the cooling device further comprises a cylinder cover water inlet channel 3, the cylinder cover water inlet channel 3 is arranged on the cylinder body 2, one end of the cylinder cover water inlet channel 3 is used for being communicated with the cylinder cover 5, the other end of the cylinder cover water inlet channel is communicated with a first cooling cavity water outlet 201 and a second cooling cavity water outlet 211 in a homogeneous phase mode, and cooling liquid flowing out of the first cooling cavity water outlet 201 and the second cooling cavity water outlet 211 finally flows into the cylinder cover 5 through the cylinder cover water inlet channel 3 to cool the cylinder cover 5.
The working principle of the cooling device of the double-layer homodromous flow type diesel engine provided by the embodiment of the application is as follows:
referring to fig. 4, the cooling liquid flows into the first cooling chamber 20 and the second cooling chamber 21 from the first cooling chamber water inlet 200 and the second cooling chamber water inlet 210, respectively, to cool the first cooling chamber 20 and the second cooling chamber 21, and then flows out of the first cooling chamber 20 and the second cooling chamber 21 through the first cooling chamber water outlet 201 and the second cooling chamber water outlet 211, respectively; the cooling liquid flowing out of the first cooling cavity water outlet 201 and the second cooling cavity water outlet 211 finally flows into the cylinder head 5 through the cylinder head water inlet channel 3 to cool the cylinder head 5, so that a double-layer cocurrent cooling flow path is completed. The cylinder sleeve 1 of the cooling device of the double-layer cocurrent flow type diesel engine of the embodiment of the application is not in interference contact with the upper part and the lower part of the cylinder block 2, the cylinder sleeve 1 cannot be deformed, the reliable durability of the engine is not influenced, and the cooling mode of cocurrent flow finally uses all the cooling liquid flowing out from the first cooling cavity 20 and the second cooling cavity 21 to cool the cylinder cover 5, so that the first cooling cavity 20 and the second cooling cavity 21 can be cooled simultaneously, the consumption of the cooling liquid supplied to the first cooling cavity 20 and the second cooling cavity 21 is less, the cooling efficiency is improved, the consumption of the cooling liquid is reduced, and the mode that the first cooling cavity water inlet 200 and the second cooling cavity water inlet 210 are arranged on the same side, and the first cooling cavity water outlet 201 and the second cooling cavity water outlet 211 are arranged on the same side is adopted, so that the casting and assembling process of the cooling device of the embodiment of the application is simpler, greatly saving raw materials.
Preferably, first cooling chamber water inlet 200 of this application embodiment sets up to two, and two first cooling chamber water inlets 200 are located the homonymy of first cooling chamber 20, and arrange from top to bottom, and the first cooling chamber water inlet 200 that is located the top is main water inlet, and the first cooling chamber water inlet 200 that is located the transfer is supplementary water inlet, prevents that the coolant liquid of the lower part of first cooling chamber 20 from forming the stagnant water district, causes the cylinder liner cave to corrode, causes the inefficacy. .
Further, the cross-sectional area of the first cooling chamber water inlet 200 is greater than the cross-sectional area of the second cooling chamber water inlet 210. The distribution of the flow rate of the cooling liquid is achieved by adjusting the cross-sectional area of the first cooling chamber water inlet 200 and the cross-sectional area of the second cooling chamber water inlet 210, so that the flow rate of the cooling liquid flowing into the first cooling chamber 20 is greater than the flow rate of the cooling liquid flowing into the second cooling chamber 21, thereby realizing that most of the cooling liquid flows into the first cooling chamber 20 and a small part of the cooling liquid flows into the second cooling chamber 21, and efficiently cooling the upper part of the cylinder liner 1 with large heat load. Therefore, the cooling device of the embodiment of the present application can independently and accurately control the cooling strength for different thermal load areas of the cylinder liner 1, the upper portion of the cylinder liner 1 with a large thermal load is strongly cooled, and the lower portion of the cylinder liner 1 with a small thermal load is weakly cooled, so that the piston group can work in a safe temperature environment, and the thermal deformation caused by the difference between the upper temperature and the lower temperature of the cylinder liner 1 can be reduced.
Further, the cross-sectional area of the second cooling chamber water inlet 210 is larger than the cross-sectional area of the second cooling chamber water outlet 211. This increases the fluid resistance of the coolant flowing into the second cooling chamber 21, and reduces the flow rate of the coolant flowing into the second cooling chamber 21, so that most of the coolant can flow into the first cooling chamber 20 to cool the upper portion of the cylinder liner 1 having a large thermal load.
Further, the cross-sectional area of the first cooling chamber water inlet 200 is greater than the cross-sectional area of the second cooling chamber water inlet 210, and the cross-sectional area of the second cooling chamber water inlet 210 is greater than the cross-sectional area of the second cooling chamber water outlet 211. The distribution of the flow rate of the cooling liquid is achieved by adjusting the cross-sectional area of the first cooling cavity water inlet 200 and the cross-sectional area of the second cooling cavity water inlet 210, so that the flow rate of the cooling liquid flowing into the first cooling cavity 20 is larger than the flow rate of the cooling liquid flowing into the second cooling cavity 21, and meanwhile, the cross-sectional area of the second cooling cavity water inlet 210 is larger than the cross-sectional area of the second cooling cavity water outlet 211, so that the flow rate of the cooling liquid flowing into the second cooling cavity 21 is further reduced, most of the cooling liquid can flow into the first cooling cavity 20, and the cooling of the upper portion of the cylinder sleeve 1 with large heat load is achieved.
Preferably, the cooling device further comprises a water outlet cavity 4, the water outlet cavity 4 is arranged on the cylinder block 2, the first cooling cavity water inlet 200 and the second cooling cavity water inlet 210 are both communicated with the water outlet cavity 4, water of the water pump is led into the water outlet cavity 4, and cooling liquid is supplied to the first cooling cavity 20 and the second cooling cavity 21.
Optionally, the cooling device further includes a converging cavity 23, the converging cavity 23 is disposed on the cylinder block 2, and the cylinder head water inlet channel 3 is communicated with the first cooling cavity water outlet 201 and the second cooling cavity water outlet 211 through the converging cavity 23. Because the cross-sectional area of the second cooling cavity water outlet 211 is smaller, the converging cavity 23 is designed to converge the cooling liquid flowing out from the second cooling cavity water outlet 211 into the converging cavity 23, and the cooling liquid in the converging cavity 23 flows into the cylinder head 5 through the cylinder head water inlet channel 3 with the larger cross-sectional area, so that the fluid resistance in the cylinder head 5 is reduced, the flow of the cooling liquid flowing into the cylinder head 5 is increased, and the cylinder head 5 can be cooled quickly and efficiently.
Preferably, the second cooling cavity water outlet 211 is communicated with the confluence cavity 23 through a regulating channel 6. Since the confluence chamber 23 is disposed near the first cooling chamber water outlet 201, and the confluence chamber 23 and the second cooling chamber water outlet 211 are disposed up and down, the cooling liquid flowing out from the second cooling chamber water outlet 211 is guided to the confluence chamber 23 by the adjusting channel 6.
Further, the regulating passage 6 includes a first regulating passage 60 and a second regulating passage 61 which are communicated with each other, and the first regulating passage 60 is vertically disposed and connected to the confluence chamber 23; the second adjusting channel 61 is horizontally arranged and connected with the second cooling cavity water outlet 211. The communication between the first cooling cavity water inlet 200 and the second cooling cavity water outlet 211 which are arranged up and down is realized through the second adjusting channel 61 which is horizontally arranged and the first adjusting channel 60 which is vertically arranged.
Furthermore, the cooling device further comprises a sealing plug 7, and the sealing plug 7 is sealed at one end of the second adjusting channel 61 far away from the water outlet 211 of the second cooling cavity. Since the second adjusting passage 61 is manufactured and molded separately after the cylinder block 2 is cast, the end of the second adjusting passage 61 not communicated with the second cooling chamber water outlet 211 needs to be closed, so that all the coolant flowing out from the second cooling chamber water outlet 211 flows into the junction chamber 23 through the first adjusting passage 60.
Optionally, the cooling device further comprises a cylinder cover water outlet channel 8 and a water return cavity 9, and two ends of the cylinder cover water outlet channel 8 are respectively communicated with the cylinder cover 5 and the water return cavity 9. The cooling liquid in the cylinder cover 5 finally flows into the water return cavity 9 through the cylinder cover water outlet channel 8, and the cooling liquid in the water return cavity 9 can be recycled for the next cooling of the engine.
Optionally, the inner wall of the cylinder block 2 is convexly provided along the circumferential direction to form a bearing table 22; the outer wall of the cylinder liner 1 is convexly provided with a pressing part 10 matched with the bearing platform 22 along the circumferential direction, and the pressing part 10 is pressed on the bearing platform 22 so as to separate the space between the cylinder liner 1 and the cylinder body 2 and form a first cooling cavity 20 and a second cooling cavity 21. The height of the pressure holding part 10 and the bearing platform 22 can be freely designed, and the pressure holding part 10 and the bearing platform 22 can be designed at the minimum position for mechanical deformation of the cylinder liner 1.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present application and are presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A cooling device for a dual-deck co-current diesel engine, comprising:
a cylinder liner (1);
the cylinder body (2) is sleeved outside the cylinder sleeve (1), and a first cooling cavity (20) and a second cooling cavity (21) which are distributed at intervals up and down are formed between the cylinder body and the cylinder sleeve (1); a first cooling cavity water inlet (200) and a first cooling cavity water outlet (201) are respectively formed in two sides of the first cooling cavity (20); a second cooling cavity water inlet (210) and a second cooling cavity water outlet (211) are respectively formed in two sides of the second cooling cavity (21); the second cooling cavity water inlet (210) and the first cooling cavity water inlet (200) are positioned on the same side of the cylinder block (2);
the cylinder cover water inlet channel (3) is arranged on the cylinder body (2), one end of the cylinder cover water inlet channel (3) is communicated with a cylinder cover (5), and the other end of the cylinder cover water inlet channel is communicated with the first cooling cavity water outlet (201) and the second cooling cavity water outlet (211);
the cooling device further comprises a converging cavity (23), the converging cavity (23) is arranged on the cylinder block (2), and the cylinder cover water inlet channel (3) is communicated with a first cooling cavity water outlet (201) and a second cooling cavity water outlet (211) through the converging cavity (23);
the water outlet (211) of the second cooling cavity is communicated with the confluence cavity (23) through a regulating channel (6);
the adjusting channel (6) comprises a first adjusting channel (60) and a second adjusting channel (61) which are communicated with each other, and the first adjusting channel (60) is vertically arranged and is connected with the confluence cavity (23); the second adjusting channel (61) is horizontally arranged and is connected with the water outlet (211) of the second cooling cavity.
2. The cooling apparatus of a dual-deck cocurrent flow diesel engine according to claim 1, characterized in that the cross-sectional area of the first cooling chamber water inlet (200) is larger than the cross-sectional area of the second cooling chamber water inlet (210).
3. The cooling apparatus of a dual-deck cocurrent flow type diesel engine according to claim 1, characterized in that the cross-sectional area of the second cooling chamber water inlet (210) is larger than the cross-sectional area of the second cooling chamber water outlet (211).
4. The cooling device of a dual-layer cocurrent flow type diesel engine according to claim 1, further comprising a water outlet chamber (4), wherein said water outlet chamber (4) is disposed on said cylinder block (2), and said first cooling chamber water inlet (200) and said second cooling chamber water inlet (210) are both in communication with said water outlet chamber (4).
5. The cooling device of the double-deck cocurrent flow type diesel engine according to claim 1, characterized in that, the cooling device further comprises a sealing plug (7), the sealing plug (7) is sealed and plugged at the end of the second regulating channel (61) far from the water outlet (211) of the second cooling chamber.
6. The cooling device of a double-deck cocurrent flow type diesel engine according to claim 1, characterized in that it further comprises a cylinder head water outlet channel (8) and a water return chamber (9), both ends of said cylinder head water outlet channel (8) are respectively communicated with said cylinder head (5) and said water return chamber (9).
7. The cooling device for a double-deck cocurrent flow type diesel engine according to claim 1, wherein the inner wall of the cylinder block (2) is formed with a bearing table (22) in a protruding manner in the circumferential direction; the outer wall of cylinder jacket (1) sets up protrudingly along the circumferencial direction and forms with pressure portion (10) that plummer (22) looks adaptation, pressure portion (10) press hold in plummer (22) are gone up, with the space separation between cylinder jacket (1) and cylinder block (2) and form first cooling chamber (20) with second cooling chamber (21).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010696383.6A CN111894755B (en) | 2020-07-20 | 2020-07-20 | Cooling device of double-layer homodromous flow type diesel engine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010696383.6A CN111894755B (en) | 2020-07-20 | 2020-07-20 | Cooling device of double-layer homodromous flow type diesel engine |
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| CN111894755B true CN111894755B (en) | 2021-05-11 |
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2020
- 2020-07-20 CN CN202010696383.6A patent/CN111894755B/en active Active
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| JP2008128133A (en) * | 2006-11-22 | 2008-06-05 | Toyota Motor Corp | Heat transfer adjustment device of heat transfer medium for cooling internal combustion engine |
| JP2015190351A (en) * | 2014-03-27 | 2015-11-02 | ダイハツ工業株式会社 | Multicylinder internal combustion engine |
| DE102017218834A1 (en) * | 2017-10-23 | 2019-04-25 | Bayerische Motoren Werke Aktiengesellschaft | Coolant channel arrangement for an internal combustion engine |
| KR20190050563A (en) * | 2017-11-03 | 2019-05-13 | 현대자동차주식회사 | Cylinder block cooled by two kinds of cooling fluid, cooling structure of the cylinder block, and assembling structure between the cylinder block and cylinder liner |
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| DE102018102064A1 (en) * | 2018-01-30 | 2019-08-01 | Man Energy Solutions Se | Cylinder liner and internal combustion engine |
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