CN107131025B

CN107131025B - Engine oil pan heat radiation structure

Info

Publication number: CN107131025B
Application number: CN201710596895.3A
Authority: CN
Inventors: 李朝晖; 杨靖; 杨秀林; 张勇; 冯仁华
Original assignee: Chongqing University of Technology
Current assignee: Chongqing University of Technology
Priority date: 2017-07-20
Filing date: 2017-07-20
Publication date: 2020-03-13
Anticipated expiration: 2037-07-20
Also published as: CN107131025A

Abstract

The invention discloses a heat dissipation structure of an engine oil pan, which comprises an oil pan body, wherein heat dissipation ribs are formed on the outward bulge of the outer bottom surface of the oil pan body, and heat dissipation grooves are formed in the inner bottom surface of the oil pan body and correspond to the positions of the heat dissipation ribs; the radiating ribs comprise two transverse ribs which are oppositely arranged, longitudinal ribs which extend towards each other are sequentially arranged on the two transverse ribs in a staggered mode to form a circuitous and curved flow groove, an oil pan cover plate is further arranged below the oil pan body, and the oil pan cover plate is connected with the bottom surface of the oil pan body in a sealing mode so that a flow passage is formed between the flow groove and the oil pan cover plate; and one side of the oil pan cover plate, which faces or is far away from the oil pan body, is provided with a convex rib. The invention has simple structure, easy realization and low manufacturing cost; the traditional air cooling and reinforced air cooling/water cooling modes can be realized to meet the cooling requirements of the lubricating oil of the serialized internal combustion engine with different heat loads; the engine has wide application and can be used on piston engines of helicopters and various internal combustion engines of automobiles.

Description

Engine oil pan heat radiation structure

Technical Field

The invention relates to the field of internal combustion engines, in particular to a heat dissipation structure of an engine oil pan.

Background

Along with the continuous improvement of the strengthening degree of the engine, the thermal load is higher and higher, the lubricating oil temperature is extremely easy to be overhigh, so that the lubricating effect of the engine is influenced, and even the lubricating failure is caused, so that the dynamic property, the economical efficiency, the reliability and the like of the engine are influenced. The common method is to add a heat dissipation rib on the bottom surface of the oil pan and add an air-cooled or water-cooled engine oil cooler, so that the complexity of the structural design of the engine is increased, and the processing difficulty and cost of related parts are also obviously increased. In order to meet the requirements of cooling lubricating oil under different heat loads, low cost and good reliability, the oil pan needs to be designed, improved and optimized in the aspects of structure, cooling mode and the like.

Disclosure of Invention

Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a simple structure, reinforcing engine oil pan heat-sinking capability effectively reduces the engine oil pan heat radiation structure of machine oil temperature.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides an engine oil pan heat radiation structure, includes the oil pan body, and the outside arch of the outer bottom surface of oil pan body is formed with the heat dissipation muscle, and the interior bottom surface of oil pan body and the position that corresponds each heat dissipation muscle all are provided with along the radiating groove that heat dissipation muscle length direction extended.

In the invention, the engine oil flows on the inner bottom surface of the oil pan body, and the heat dissipation ribs positioned on the outer bottom surface of the oil pan body can increase the contact area with air, so that the outward heat dissipation capability of the oil pan body is enhanced; the heat of machine oil self passes through the heat transfer and transmits for the oil pan body and then accomplishes the reduction of machine oil temperature, and the radiating groove of setting on the interior bottom surface of oil pan body can increase the area of contact between machine oil and the oil pan body, and then makes machine oil can be like more heats of oil pan body transmission. In addition, the position of the heat dissipation groove corresponds to the position of the external heat dissipation rib, the heat received by the oil pan body on the periphery of the heat dissipation groove is directly dissipated through the heat dissipation rib with the large heat dissipation area, the heat can be dissipated more quickly, the heat dissipation capacity of the engine oil pan is enhanced, and engine oil can be cooled effectively.

As optimization, the heat dissipation muscle includes the horizontal muscle of two relative settings, and the crisscross longitudinal bar that extends towards the other side that is provided with in proper order on two horizontal muscle to form circuitous crooked form chute, the below of oil pan body still is provided with the oil pan cover plate, the oil pan cover plate with the bottom surface sealing connection of oil pan body is in the same place, so that form the runner between chute and the oil pan cover plate. On the higher model of heat dissipation requirement, conventional forced air cooling can't satisfy the cooling requirement of this internal engine oil of oil pan, through setting up the oil pan apron, makes and forms the runner between the heat dissipation muscle on the oil pan body to insert the cooling system circulation of water-cooled engine with the runner in, use the coolant liquid to dispel the heat, improve the heat-sinking capability.

As optimization, the oil pan cover plate faces towards on one side of the oil pan body and corresponds the protruding edge of the position of the launder is formed with a convex rib I extending along the length direction of the launder, and the convex rib I extends into the launder and is respectively arranged at intervals with the tank bottom and the tank wall of the launder. The convex rib I extends into the flow groove, the contact area with the cooling liquid can be increased, more heat in the cooling liquid can be taken away, and the heat dissipation capacity is improved.

And as optimization, a convex rib II extending along the length direction of the flow channel is formed on the side surface of the oil pan cover plate, which is opposite to the oil pan body, and in a protruding manner at a position corresponding to the flow channel. The convex ribs II can enhance the heat dissipation area to enhance the cooling of the flow channel between the oil pan body and the oil pan body, thereby effectively enhancing the cooling effect of the whole oil pan engine oil. In addition, the convex rib II corresponds to the position of the flow channel, so that the temperature of cooling liquid in the flow channel can be taken away more directly and quickly, and the heat dissipation effect is improved.

Preferably, through holes penetrating through the longitudinal ribs are arranged on the longitudinal ribs at intervals along the length direction of the longitudinal ribs, and the axes of the through holes are perpendicular to the center lines of the longitudinal ribs along the length direction of the longitudinal ribs. Along with the continuous increase of the rotating speed and the load of the engine, the pressure and the flow speed of the cooling liquid in the flow channel are also continuously increased to generate larger throttling, at the moment, the cooling liquid in the flow channel can directly flow through the through holes on the longitudinal ribs in a short circuit mode, the resistance in the flow channel can be reduced, the flow speed and the flow of the cooling liquid in the flow channel are increased, and therefore the cooling effect of the engine oil in the whole oil pan body is effectively enhanced.

In conclusion, the beneficial effects of the invention are as follows: the invention has simple structure, easy realization and low manufacturing cost; the traditional air cooling and reinforced air cooling/water cooling modes can be realized to meet the cooling requirements of the lubricating oil of the serialized internal combustion engine with different heat loads; the piston engine helicopter has wide application and can be used on piston engine helicopters and various internal combustion engine automobiles.

Drawings

For purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made in detail to the present invention as illustrated in the accompanying drawings, in which:

FIG. 1 is a sectional view of example 1 of the present invention;

FIG. 2 is a bottom view of the oil pan body in example 1 of the present invention;

FIG. 3 is a sectional view of example 2 of the present invention;

fig. 4 is a sectional view of embodiment 3 of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1

As shown in fig. 1 and 2, the engine oil pan heat dissipation structure in the present embodiment includes an oil pan body 1, a heat dissipation rib 2 is formed on an outer bottom surface of the oil pan body 1 in an outward protruding manner, and a heat dissipation groove 3 extending along a length direction of the heat dissipation rib 2 is provided on an inner bottom surface of the oil pan body 1 and corresponding to a position of each heat dissipation rib 2.

In this embodiment, heat dissipation muscle 2 includes the horizontal muscle of two relative settings, and the crisscross longitudinal bar that extends towards the other side that is provided with in proper order on two horizontal muscle to form circuitous crooked form chute, the below of oil pan body 1 still is provided with oil pan cover plate 4, oil pan cover plate 4 with oil pan body 1's bottom surface sealing connection is in the same place, so that form the runner between chute and the oil pan cover plate 4.

Example 2

As shown in fig. 3, as a second embodiment of the present invention, the engine oil pan heat dissipation structure in the present embodiment includes an oil pan body 1, where the outer bottom surface of the oil pan body 1 is formed with heat dissipation ribs 2 protruding outward, and the inner bottom surface of the oil pan body 1 and the positions corresponding to the heat dissipation ribs 2 are provided with heat dissipation grooves 3 extending along the length direction of the heat dissipation ribs 2.

In this embodiment, oil pan apron 4 orientation just correspond on one side of oil pan body 1 the position arch of chute is formed with the edge the protruding muscle I5 that chute length direction extends, protruding muscle I5 stretch into in the chute and respectively with the tank bottom and the cell wall interval of chute set up.

Example 3

As shown in fig. 3, as a third embodiment of the present invention, the engine oil pan heat dissipation structure in the present embodiment includes an oil pan body 1, where the outer bottom surface of the oil pan body 1 is formed with heat dissipation ribs 2 protruding outward, and heat dissipation grooves 3 extending along the length direction of the heat dissipation ribs 2 are disposed on the inner bottom surface of the oil pan body 1 and corresponding to the positions of the heat dissipation ribs 2.

In this specific embodiment, a convex rib ii 6 extending along the length direction of the flow passage is formed on the side surface of the oil pan cover plate 4 opposite to the oil pan body 1 and protruding from the position corresponding to the flow passage.

In the specific embodiment, through holes 7 penetrating through the longitudinal ribs are formed in the longitudinal ribs at intervals along the length direction of the longitudinal ribs, and the axes of the through holes 7 are perpendicular to the central lines of the longitudinal ribs along the length direction of the longitudinal ribs.

In addition, in the specific implementation process, it can also be done that the edge of the oil pan cover plate extends outwards to be provided with a connecting part I, a connecting part II is convexly formed at the position of the bottom surface of the oil pan body corresponding to the connecting part I, and the connecting part I and the connecting part II are fixedly connected through a connecting bolt so that the oil pan cover plate is connected with the bottom surface of the oil pan body in a sealing manner. Also can all set up the protruding muscle I and the protruding muscle II that extend the setting along runner length direction on the side of oil pan apron towards the oil pan body and keep away from the oil pan body, strengthen the heat exchange to the coolant liquid in the runner and the outside heat-sinking capability of oil pan apron simultaneously.

Finally, it is noted that the above-mentioned embodiments illustrate rather than limit the invention, and that, while the invention has been described with reference to preferred embodiments thereof, 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 as defined by the appended claims.

Claims

1. The utility model provides an engine oil pan heat radiation structure, includes the oil pan body, the outside arch in outer bottom surface of oil pan body is formed with heat dissipation muscle, its characterized in that: the inner bottom surface of the oil pan body and the positions corresponding to the radiating ribs are provided with radiating grooves extending along the length direction of the radiating ribs; the oil pan body is provided with a bottom oil shell cover plate, and the bottom oil shell cover plate is hermetically connected with the bottom surface of the oil pan body together so as to form a flow channel between the flow channel and the bottom oil shell cover plate; through holes penetrating through the longitudinal ribs are arranged on the longitudinal ribs at intervals along the length direction of the longitudinal ribs, and the axes of the through holes are vertical to the central lines of the longitudinal ribs along the length direction of the longitudinal ribs;

a convex rib I extending along the length direction of the flow groove is formed on the side surface of the oil pan cover plate facing the oil pan body and protruding at a position corresponding to the flow groove, and the convex rib I extends into the flow groove and is respectively arranged at intervals with the groove bottom and the groove wall of the flow groove;

and a convex rib II extending along the length direction of the flow channel is formed on the side surface of one side, back to the oil pan body, of the oil pan cover plate and protrudes at a position corresponding to the flow channel.