CN206035656U - Good heat dissipation's cylinder liner - Google Patents

Abstract

The utility model provides a good heat dissipation's cylinder liner, the first twine and the second twine that are the vertical cross connection of closed radiator -grid cover around heat dissipation wall layer a week have mutual support and restraining function, consolidate the heat dissipation wall layer, avoid thin heat dissipation wall layer to take place to warp, especially, receive effect such as cylinderpiston reciprocating motion's contact force and high -temperature combustion gas 's swelling pressure and the transmission can be avoided dispelling the heat the wall layer when giving the heat dissipation wall layer and takes place along the uplift of all directions or deformation such as sunken when the cylinder liner body, but and then heat dissipation wall layer supporting cylinder cover body, avoid the cylinder liner body to take place to warp, thereby prevent along with the internal surface of live time extension cylinder liner body roughly gradually, cylinderpiston movement accuracy reduces even severe deformation gradually and the condition of unable work takes place, and radiator -grid cover can show the surface area of increase heat dissipation wall layer outer peripheral face, enlarge with the area of contact of coolant liquid, and then the heat dispersion of effective reinforcing heat dissipation wall layer prolongs engine service life greatly.

Description

A kind of good cylinder sleeve of thermal diffusivity

Technical field

This utility model is related to engine components field, and in particular to a kind of good cylinder sleeve of thermal diffusivity.

Background technology

The structure of cylinder has been known, and its form substantially has three kinds：Depletion of QI cylinder sleeve type cylinder, wet type cylinder and dry type gas Cylinder.

The body of depletion of QI cylinder sleeve type cylinder does not inlay the body of any cylinder jacket, directly processes cylinder on body, Advantage can be shortening bore spacing, reduce cabinet size and quality.But it is relatively costly.

The cylinder jacket outer peripheral face of wet type cylinder and coolant directly contact, isolate coolant and cylinder work by cylinder sleeve completely Making room, radial positioning being realized using upper and lower locating ring band, axially position is propped up by cylinder jacket upper flange is corresponding with the top of body Bearing surface coordinates to be realized.The advantage of wet liner is the water jacket being not closed in cylinder block, is easily cast, and wet liner leads to Chang Bihou can accomplish 5-8mm, conducting heat, cooling effect also preferably, Temperature Distribution is than on the basis of more uniform, it may have enough Intensity, and repair convenient, it is not necessary to which electromotor is pulled down with regard to replaceable cylinder jacket from automobile.Have the disadvantage that integral rigidity is poor, Easily leak.

The cylinder jacket of dry cylinder is not contacted with coolant, and wall thickness is 2-3mm, outer surface and cylinder jacket seat bearing bore inner surface Must polish, with ensure necessary bit-type precision and be easy to dismounting.In order to obtain enough real contact areas and between cylinder body, Ensure that the radiating of cylinder sleeve and the inner surface of positioning, the outer surface of cylinder sleeve and the cylinder block bearing bore coordinated with which have certain processing Precision, the two typically adopts interference fit.The advantage of dry liner is that body rigidity is big, and bore spacing is little, light weight, plus Work process is simple.Have the disadvantage that heat transfer is poor, temperature distributing disproportionation is even, is susceptible to local deformation.

The application of wet type cylinder and dry cylinder is wide, but no matter wet type cylinder or dry cylinder are actually used During, all there is the situation that radiating is bad and intensity is not enough, especially the outer peripheral face radiating position of the cylinder jacket of wet type cylinder There are no auxiliary support apparatus, cylinder jacket is being expanded by the reciprocating contact pressure of cylinder piston and high-temperature combustion gas Pressure etc. easily deforms when acting on, and is gradually lowered very so as to there is cylinder piston kinematic accuracy as use time extends Lead to not the situation of work to gross distortion, have a strong impact on normal use, practicality has much room for improvement.

In consideration of it, inventor is furtherd investigate to the problems referred to above, there is then this case to produce.

Utility model content

The purpose of this utility model is to provide a kind of radiating parietal layer intensity to significantly improve, and is unlikely to deform, and service life is big Extend greatly, and heat dispersion is significantly improved, the good cylinder sleeve of practical thermal diffusivity.

In order to achieve the above object, this utility model adopts such technical scheme：

A kind of good cylinder sleeve of thermal diffusivity, including liner body, the liner body periphery is closely arranged with radiating parietal layer, institute State radiating parietal layer to contact with the coolant cavity volume of cylinder sleeve seat and link together with cylinder sleeve seat；The periphery surface cover of the radiating parietal layer Radiating parietal layer is provided around one week in enclosed radiating net, the radiating net includes intersecting vertically what fork linked together First twine and the second twine, first twine and the second twine are in 45 ° of angles with the axis of the radiating parietal layer.

The radiating net is linked together with the radiating parietal layer interference fit.

The upper edge of the radiating net is formed with the axis along radiating parietal layer contour extension with radiating parietal layer and mutually hangs down Straight upper reinforcing edge silk, the lower edge of the radiating net are formed with and extend the axle with radiating parietal layer along the radiating parietal layer contour The perpendicular lower reinforcing edge silk of line.

After using above-mentioned technical proposal, the good cylinder sleeve of thermal diffusivity of the present utility model breaks through the structure of conventional engines cylinder sleeve Appearance formula, can wrap up to the radiating area of the parietal layer that radiates in enclosed radiating net around radiating parietal layer, have for one week first There is an effect of waling in all directions, and first twine and the second twine of square crossing connection has and mutually support and pin down Effect, to radiating, parietal layer is reinforced, it is to avoid relatively thin radiating parietal layer deforms, especially when liner body is lived by cylinder Can avoid dissipating when filling in the effect such as bulbs of pressure of reciprocating contact pressure and high-temperature combustion gas and passing to radiating parietal layer The deformation such as bending in all directions, and then the sustainable liner body of the parietal layer that radiates in hot wall layer, it is to avoid cylinder sleeve sheet there is Body deforms, so as to prevent as the inner surface of use time prolongation liner body is gradually coarse, cylinder piston kinematic accuracy The situation that be gradually lowered even gross distortion and cannot work occurs；And the net that radiates can significantly increase radiating parietal layer outer peripheral face Surface area, expand and the contact area of coolant, and then effectively strengthen the heat dispersion of radiating parietal layer, greatly prolong electromotor Service life.Compared with prior art, the good cylinder sleeve of thermal diffusivity of the present utility model, its radiating parietal layer intensity are significantly improved, no Yielding, service life is greatly prolonged, and heat dispersion is significantly improved, practical.

Description of the drawings

Fig. 1 is the partial structural diagram of radiating parietal layer；

Broken section structural representations of the Fig. 2 for this utility model use state.

In figure：

1- liner bodies

11- radiating parietal layers

111- radiating net the first twines of 1111-

Reinforcing edge silk on 1112- the second twine 1113-

Reinforcing edge silk under 1114-

2- cylinder sleeve seat 21- cavity volumes.

Specific embodiment

In order to the technical solution of the utility model is explained further, it is described in detail below by specific embodiment.

A kind of good cylinder sleeve of thermal diffusivity of the present utility model, as illustrated in fig. 1 and 2, including liner body 1 and carrying cylinder sleeve sheet The cylinder sleeve seat 2 of body 1.

1 periphery of liner body is closely arranged with radiating parietal layer 11, and cylinder sleeve seat 2 has the cavity volume 21 of accommodating coolant, radiating Parietal layer 11 is contacted with the cavity volume 21 of the coolant of cylinder sleeve seat 2 and is linked together with cylinder sleeve seat 2；The periphery surface cover of radiating parietal layer 11 It is provided around radiating parietal layer 11 1 weeks in enclosed radiating net 111, the net 111 that the radiates fork that includes intersecting vertically is connected to one The axis of the first twine 1111 for rising and the second twine 1112, the first twine 1111 and the second twine 1112 with radiating parietal layer 11 In 45 ° of angles.In actual use, 1 periphery of liner body is closely arranged with radiating parietal layer 11 to this utility model, around scattered Hot wall layer can be wrapped up to the radiating area of the parietal layer 11 that radiates first for 11 1 weeks in enclosed radiating net 111, with along each The effect of waling in individual direction, and first twine 1111 and the second twine 1112 of square crossing connection have and mutually support and lead Make and use, parietal layer 11 is reinforced to radiating, it is to avoid relatively thin radiating parietal layer 11 deforms, especially when liner body 1 is received Bulbs of pressure to the reciprocating contact pressure of cylinder piston (not shown) and high-temperature combustion gas etc. are acted on and are transmitted Can avoid radiating parietal layer 11 that the deformations such as bending in all directions, and then the parietal layer 11 that radiates occur during to radiating parietal layer 11 Sustainable liner body 1, it is to avoid liner body 1 deforms, so that prevent extending the interior table of liner body 1 with use time Face is gradually coarse, the situation that cylinder piston kinematic accuracy is gradually lowered even gross distortion and cannot work occurs；And radiate Net 111 can significantly increase the surface area of radiating 11 outer peripheral face of parietal layer, expand the contact area with coolant, and then effectively strengthen The heat dispersion of radiating parietal layer 11, greatly prolongs service life of aeroengine.

For the concrete attachment structure of realize radiating net 111 and radiating parietal layer 11, it is preferable that radiating net 111 and dissipate 11 interference fit of hot wall layer links together.This structure can strengthen the basis of radiating net 111 and radiating 11 bonding strength of parietal layer On, also can ensure that the heat transfer performance between radiating net 111 and radiating parietal layer 11 is excellent and stable.

In order that the structure of radiating net 111 is more complete, it is preferable that the upper edge of radiating net 111 is formed with along scattered 11 contour of hot wall layer extends the upper reinforcing edge silk 1113 with the axis perpendicular of radiating parietal layer 11, the lower edge of the net 111 that radiates It is formed with the lower reinforcing edge silk 1114 extended along 11 contour of radiating parietal layer with the axis perpendicular of radiating parietal layer 11.This utility model In actual use, upper reinforcing edge silk 1113 and lower reinforcing edge silk 1114 can be carried out to the lower edges of the net 111 that radiates Receive side to reinforce, it is to avoid fragile or deformation occurs stress concentration and in edge, significantly improves bulk strength.Upper reinforcing edge silk 1113 It is concrete with lower reinforcing edge silk 1114 also to link together with radiating 11 interference fit of parietal layer.

Product form of the present utility model is not limited to this case diagram and embodiment, and anyone carries out similar thinking to which Appropriate change is modified, and all be should be regarded as without departing from patent category of the present utility model.

Claims (3)

1. the good cylinder sleeve of a kind of thermal diffusivity, including liner body, it is characterised in that：The liner body periphery is closely arranged with scattered Hot wall layer, the radiating parietal layer are contacted with the coolant cavity volume of cylinder sleeve seat and are linked together with cylinder sleeve seat；The radiating parietal layer Outer peripheral face be arranged with around radiating parietal layer one week in enclosed radiating net, the radiating net includes the fork company that intersects vertically The first twine being connected together and the second twine, first twine and the second twine with the axis of the radiating parietal layer are in 45 ° of angles.

2. the good cylinder sleeve of a kind of thermal diffusivity according to claim 1, it is characterised in that：The radiating net and the radiating Parietal layer interference fit links together.

3. the good cylinder sleeve of a kind of thermal diffusivity according to claim 1 and 2, it is characterised in that：The top of the radiating net Along the upper reinforcing edge silk for being formed with the axis perpendicular for extending and radiating parietal layer along the radiating parietal layer contour, the radiating net Lower edge be formed with the lower reinforcing edge silk extended along the radiating parietal layer contour with the axis perpendicular of radiating parietal layer.