CN212614984U

CN212614984U - Engine cooling structure

Info

Publication number: CN212614984U
Application number: CN202021677834.3U
Authority: CN
Inventors: 陶宏
Original assignee: Chongqing Hongpan Machinery Manufacturing Co ltd
Current assignee: Chongqing Hongpan Machinery Manufacturing Co ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2021-02-26
Anticipated expiration: 2030-08-12

Abstract

The utility model discloses an engine cooling structure, including the engine cylinder body, the water jacket, radiating fan spare and pipeline spare, the water jacket passes through pipeline spare and radiator fan spare intercommunication, the water jacket has cylinder body cooling chamber and chamber lid cooling chamber, cylinder body cooling chamber encircles the week side setting of engine cylinder body, chamber lid cooling chamber passes through pipeline spare and radiator fan spare intercommunication, chamber lid cooling intracavity is provided with first cooling duct and second cooling duct, on prior art's basis, improve engine cooling structure, add first cooling duct and second cooling duct, utilize first cooling duct to cool off the engine cylinder body upside, utilize second cooling duct and cylinder body cooling chamber cooperation again, in order to realize the cooling to the cylinder body, thereby effectively avoided cylinder body and jar hole top to be heated and the condition of warping.

Description

Engine cooling structure

Technical Field

The utility model belongs to the technical field of the engine, especially, relate to an engine cooling structure.

Background

The cylinder block is used as a mounting frame of an engine system to bear various loads, a cylinder hole on the cylinder block is used for mounting a piston and sealing a combustion chamber, and the cylinder hole is used as a part of the combustion chamber and is required to bear pressure generated by combustion and also to bear high temperature generated by friction of the piston. Especially, if the heat generated by the combustion chamber at the upper part of the cylinder hole is accumulated and cannot be cooled in time, the cylinder hole and the piston deform due to overheating, so that cylinder pulling faults caused by abnormal friction between the piston and the cylinder are caused, and the engine is scrapped.

However, in the use process, the existing cooling structure only cools the edge part of the multi-cylinder structure, so that the top of the piston still has heat accumulation, and the cylinder hole and the piston are easily heated to generate deformation, so that the engine is damaged.

SUMMERY OF THE UTILITY MODEL

For solving prior art, the piston top lacks cooling structure, leads to jar hole and piston to be heated yielding problem, the utility model provides an engine cooling structure.

An engine cooling structure comprises an engine cylinder body, a water jacket, a radiating fan piece and a pipeline piece, wherein the water jacket is sleeved on the outer peripheral side of the engine cylinder body and is communicated with the radiating fan piece through the pipeline piece, the radiating fan piece is positioned on one side of the engine cylinder body, the water jacket is provided with a cylinder body cooling cavity and a cavity cover cooling cavity, the cylinder body cooling cavity surrounds the periphery of the engine cylinder body, the cavity cover cooling cavity is communicated with the radiating fan piece through the pipeline piece, a first cooling air channel respectively positioned on the upper side of the engine cylinder body and a second cooling air channel arranged around the engine cylinder body are arranged in the cavity cover cooling cavity, the first cooling air channel and the second cooling air channel are communicated with one end of the engine cylinder body, which is relatively far away from the radiating fan piece, and are at a first connecting position, the first cooling air duct and the second cooling air duct are communicated at one end, close to the heat dissipation fan part, of the engine cylinder body, and are a second connecting part.

The water jacket further comprises a water diversion gasket and a cavity wall, the water diversion gasket is located between the cavity wall and the engine cylinder body, the second cooling air channel is located on the lower side of the water diversion gasket, and the cylinder body cooling cavity is located on the upper side of the water diversion gasket.

Wherein, the pipeline spare includes coolant liquid pipe, intake pipe and blast pipe, coolant liquid pipe encircles the engine cylinder body sets up, the intake pipe respectively with heat dissipation fan spare with the second junction intercommunication, the blast pipe is located the engine cylinder body is kept away from relatively the one end of heat dissipation fan spare, and with first junction intercommunication.

The engine cylinder body comprises a plurality of cylinder holes, a nose bridge area is formed between every two adjacent cylinder holes, an exhaust passage is arranged in the nose bridge area and communicated with the second cooling air duct and the nose bridge area.

And a side water tank arranged along the engine cylinder body is arranged in the cylinder body cooling cavity, surrounds the engine cylinder body and is matched with the pipeline piece.

The cooling device comprises a cooling pipe, a fan and a heat dissipation fan part, wherein the cooling pipe is arranged on the outer side of the fan, the heat dissipation fan part comprises an air guide cover, a plurality of cooling fins, the fan and the cooling pipe, the air guide cover is arranged on the outer side of the fan and is communicated with the air inlet pipe, the cooling fins are uniformly arranged on the outer side of the cooling pipe, and the cooling pipe is communicated with the cooling liquid pipe.

The air guide cover comprises an annular covering cover and an induced draft cover, and the annular covering cover is located on the outer side of the fan and is communicated with the air inlet pipe through the induced draft cover.

The utility model has the advantages that: on prior art's basis, improve engine cooling structure, add first cooling air duct and second cooling air duct, utilize first cooling air duct to cool off engine cylinder block upside, utilize second cooling air duct and cylinder block cooling chamber cooperation again to the realization is to the cooling of cylinder block, thereby has effectively avoided cylinder block and jar hole top to be heated and the condition of warping.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of an axial measurement structure of an engine cooling structure of the present invention.

Fig. 2 is an axial structural schematic diagram of an engine cylinder body of the engine cooling structure of the present invention.

Fig. 3 is a schematic diagram of an external cross-sectional structure of an engine cylinder block of an engine cooling structure according to the present invention.

Fig. 4 is a schematic axial view of the wind scooper and the fan of the engine cooling structure of the present invention.

10-an engine cylinder body, 20-a water jacket, 30-a heat dissipation fan part, 40-a pipeline part, 11-a cylinder hole, 21-a cylinder body cooling cavity, 22-a cavity cover cooling cavity, 23-a water division gasket, 24-a cavity wall, 31-an air guide cover, 32-a radiating fin, 33-a fan, 34-a cooling pipe, 41-a cooling liquid pipe, 42-an air inlet pipe, 43-an air outlet pipe, 111-a nose bridge area, 112-an air outlet pipe, 211-a side water tank, 221-a first cooling air channel, 222-a second cooling air channel, 223-a first connecting part, 224-a second connecting part, 311-a circular wrapping cover and 312-an air guide cover.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 4, the present invention provides a technical solution:

an engine cooling structure, comprising an engine block 10, a water jacket 20, a heat dissipating fan 30 and a pipeline 40, wherein the water jacket 20 is sleeved on the outer periphery of the engine block 10 and is communicated with the heat dissipating fan 30 through the pipeline 40, the heat dissipating fan 30 is located on one side of the engine block 10, the water jacket 20 has a block cooling chamber 21 and a cover cooling chamber 22, the block cooling chamber 21 is disposed around the periphery of the engine block 10, the cover cooling chamber 22 is communicated with the heat dissipating fan 30 through the pipeline 40, a first cooling air duct 221 respectively located on the upper side of the engine block 10 and a second cooling air duct 222 disposed around the engine block 10 are disposed in the cover cooling chamber 22, the first cooling air duct 221 and the second cooling air duct 222 are communicated with one end of the engine block 10 relatively far away from the heat dissipating fan 30, and is a first junction 223, the first cooling air duct 221 and the second cooling air duct 222 are further communicated at one end of the engine block 10 relatively close to the heat dissipation fan 30, and is a second junction 224.

In the present embodiment, the engine block 10 is used for providing power, the water jacket 20 is used for cooling the engine block 10, the heat radiating fan 30 radiates heat by air circulation to assist in lowering the temperature of the engine, the duct member 40 is used to communicate each component, the cylinder block cooling chamber 21 and the chamber cover cooling chamber 22 serve as a load-bearing platform for cooling the engine cylinder block 10 and the cylinder cover respectively, wherein, the first cooling air channel 221 is matched with the heat dissipation fan 30 to realize the cooling of the cylinder cover, the second cooling air duct 222 is also matched with the heat dissipation fan 30, so as to cool the engine block 10, the air flow generated by the heat dissipation fan 30 is dispersed into the first cooling air duct 221 and the second cooling air duct 222 through the first connection 223, and is discharged through the second connection 224.

Further, the water jacket 20 further includes a water diversion gasket 23 and a cavity wall 24, the water diversion gasket 23 is located between the cavity wall 24 and the engine block 10, the second cooling air duct 222 is located on the lower side of the water diversion gasket 23, and the block cooling cavity 21 is located on the upper side of the water diversion gasket 23.

In this embodiment, the water-dividing gasket 23 is used to divide the second cooling air duct 222 and the cylinder cooling cavity 21, and the second cooling air duct 222 has a certain cooling effect on the cylinder cooling cavity 21 in addition to cooling the engine cylinder 10, so that the temperature of the cylinder cooling cavity 21 can be effectively reduced.

Further, the duct member 40 includes a cooling liquid pipe 41, an air inlet pipe 42 and an air outlet pipe 43, the cooling liquid pipe 41 is disposed around the engine block 10, the air inlet pipe 42 is respectively communicated with the heat dissipation fan 30 and the second connection 224, and the air outlet pipe 43 is located at one end of the engine block 10 relatively far away from the heat dissipation fan 30 and is communicated with the first connection 223.

In the present embodiment, the coolant pipe 41 is externally connected to a water pump, and filled with coolant to cool the engine block 10 by means of coolant circulation, while the air inlet pipe 42 is used to enable the air flow in the heat dissipating fan 30 to enter the cavity cooling cavity and the cavity cover cooling cavity 22, and the air outlet pipe 43 is used to discharge the air flow absorbing heat.

Further, the engine block 10 includes a plurality of cylinder bores 11, a nose bridge region 111 is formed between adjacent cylinder bores 11, an exhaust passage 112 is disposed in the nose bridge region 111, and the exhaust passage 112 communicates the second cooling air duct 222 and the nose bridge region 111.

In this embodiment, the cylinder bores 11 are arranged in parallel, and the nose bridge region 111 is difficult to receive heat dissipation from the cooling liquid pipe 41 due to structural factors, so the exhaust passage 112 is additionally arranged to communicate the exhaust passage 112 with the second cooling air duct 222, and when an air flow passes through the second cooling air duct 222, the air flow can enter the nose bridge region 111 through the exhaust passage 112, thereby cooling the nose bridge region 111 between the cylinder bores 11.

Further, a side water tank 211 is provided in the cylinder block cooling chamber 21 along the engine block 10, and the side water tank 211 surrounds the engine block 10 and fits to the duct member 40.

In the present embodiment, the side water groove 211 is configured to cooperate with the coolant pipe 41 such that the coolant pipe 41 can contact the engine block 10 as much as possible, thereby achieving heat exchange to the engine block 10 as much as possible.

Further, the heat dissipation fan 30 includes an air guiding cover 31, a plurality of heat dissipation fins 32, a fan 33, and a cooling pipe 34, the air guiding cover 31 is located outside the fan 33 and is communicated with the air inlet pipe 42, the heat dissipation fins 32 are uniformly arranged outside the cooling pipe 34, and the cooling pipe 34 is communicated with the cooling liquid pipe 41.

In the present embodiment, the wind scooper 31 is configured to collect and send the airflow generated by the fan 33 to the air inlet 42, the heat sink 32 is configured to dissipate heat of the cooling tube 34, that is, the cooling liquid in the cooling tube 34, and the fan 33 rotates to provide moving airflow.

Further, the air guiding cover 31 includes an annular shroud 311 and an induced draft cover 312, and the annular shroud 311 is located outside the fan 33 and is communicated with the air inlet pipe 42 through the induced draft cover 312.

In the present embodiment, the annular shroud 311 is used to collect the airflow generated by the fan 33, and the induced draft cover 312 is used to guide the airflow to the air inlet 42.

The utility model discloses on prior art's basis, cooling structure through improving the engine, add first cold air duct and second cold air duct, come to dispel the heat to the cylinder cap position of engine with the mode that realizes utilizing the circulation of air, add exhaust passage 112 again, make coolant pipe 41 be not convenient for carry out radiating dead angle position between the cylinder hole 11 and obtain dispelling the heat, the cooling effect of engine has further been promoted, still utilize scattered hot air fan spare 30 simultaneously, promote the radiating effect of coolant liquid, make the coolant liquid can rapid cooling, in order to promote the cooling effect of coolant liquid when coolant liquid circulates in coolant pipe 41.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an engine cooling structure, its characterized in that, includes engine cylinder body, water jacket, heat dissipation fan spare and pipeline spare, the periphery side of engine cylinder body is located to the water jacket cover, and through pipeline spare with heat dissipation fan spare intercommunication, heat dissipation fan spare is located one side of engine cylinder body, the water jacket has cylinder body cooling chamber and chamber lid cooling chamber, cylinder body cooling chamber encircles the week side setting of engine cylinder body, chamber lid cooling chamber pass through pipeline spare with heat dissipation fan spare intercommunication, be provided with the first cooling duct that is located respectively the upside of engine cylinder body in the chamber lid cooling chamber to and encircle the second cooling duct that engine cylinder body set up, first cooling duct with the second cooling duct in the one end intercommunication that heat dissipation fan spare was kept away from relatively to engine cylinder body, the first cooling air duct and the second cooling air duct are communicated at one end, close to the heat dissipation fan, of the engine cylinder body and are a second connection position.

2. The engine cooling structure according to claim 1, wherein the water jacket further includes a water-diversion gasket and a cavity wall, the water-diversion gasket is located between the cavity wall and the engine block, the second cooling air duct is located on a lower side of the water-diversion gasket, and the block cooling cavity is located on an upper side of the water-diversion gasket.

3. The engine cooling structure according to claim 1, wherein the duct member includes a coolant pipe disposed around the engine block, an intake pipe communicating with the heat radiating fan member and the second connection point, respectively, and an exhaust pipe communicating with the first connection point at an end of the engine block relatively far from the heat radiating fan member.

4. The engine cooling structure according to claim 1, wherein the engine block includes a plurality of cylinder bores, a nose bridge region is formed between adjacent cylinder bores, and an exhaust passage is provided in the nose bridge region, the exhaust passage communicating the second cooling air duct and the nose bridge region.

5. An engine cooling structure as defined in claim 1, wherein a side water groove is provided along said engine block in said block cooling chamber, said side water groove being provided around said engine block and being engaged with said piping member.

6. The engine cooling structure according to claim 3, wherein the heat dissipation fan member includes a wind scooper, a plurality of heat dissipation fins, a fan, and a cooling pipe, the wind scooper is located outside the fan and is communicated with the intake pipe, the heat dissipation fins are uniformly arranged outside the cooling pipe, and the cooling pipe is communicated with the cooling liquid pipe.

7. The engine cooling structure according to claim 6, wherein the air guiding cover includes an annular shroud and an induced draft cover, and the annular shroud is located outside the fan and is communicated with the intake duct through the induced draft cover.