CN205779281U - A kind of follow-on wet type cylinder sleeve of engine - Google Patents

Abstract

The utility model proposes a kind of follow-on wet type cylinder sleeve of engine, break through the structural form of tradition cylinder sleeve, first the radiating area that liner body is thinner can be wrapped up by heat radiation net, have in all directions wale effect, and the first twine of square crossing connection and the second twine have mutually support and restraining function, liner body is reinforced, relatively thin liner body is avoided to deform, especially avoid liner body that the deformation such as bending in all directions occur when effects such as the bulbs of pressure by the reciprocating contact pressure of cylinder piston and high-temperature combustion gas, thus prevent the inner surface along with using time lengthening liner body the most coarse, the situation that cylinder piston kinematic accuracy is gradually lowered even gross distortion and cannot work occurs；And the net that dispels the heat can significantly increase the surface area of liner body outer peripheral face, expand the contact area with coolant, and then effective heat dispersion strengthening liner body, be greatly prolonged service life of aeroengine.

Description

A kind of follow-on wet type cylinder sleeve of engine

Technical field

This utility model relates to engine components field, is specifically related to a kind of follow-on wet type cylinder sleeve of engine.

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 the most inlay the body of any cylinder jacket, directly processes cylinder on body, Advantage is to shorten bore spacing, makes cabinet size and quality reduce.But it is relatively costly.

The cylinder jacket outer peripheral face of wet type cylinder directly contacts with coolant, completely by cylinder sleeve isolation coolant and cylinder work Making room, utilize location annulus up and down to realize radially location, axially location is propped up by cylinder jacket upper flange is corresponding with body top Bearing surface coordinates realization.The advantage of wet liner is the water jacket being not closed in cylinder block, easily casts, and wet liner leads to Chang Bihou can accomplish 5-8mm, conducting heat, cooling effect also preferably, Temperature Distribution ratio is on the basis of more uniform, it may have enough Intensity, and repair conveniently, it is not necessary to electromotor is pulled down with regard to replaceable cylinder jacket from automobile.Shortcoming is that integral rigidity is poor, Easily leak.

The cylinder jacket of dry cylinder does not contacts with coolant, and wall thickness is 2-3mm, outer surface and cylinder jacket seat bearing bore inner surface Must polish, to ensure necessary bit-type precision and to be easy to dismounting.In order to obtain and real contact area enough between cylinder body, Ensureing the heat radiation of cylinder sleeve and location, the outer surface of cylinder sleeve and the inner surface of cylinder block bearing bore coordinated with it have certain processing Precision, the two typically uses interference fit.The advantage of dry liner is that body rigidity is big, and bore spacing is little, light weight, adds Work technique is simple.Shortcoming is that heat transfer is poor, and 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 outer peripheral face heat radiation position of the situation that heat radiation is bad and intensity is not enough, the especially cylinder jacket of wet type cylinder Not having auxiliary support apparatus, cylinder jacket is being expanded by the reciprocating contact pressure of cylinder piston and high-temperature combustion gas Easily deform during the effect such as pressure, thus cylinder piston kinematic accuracy occurs along with using time lengthening to be gradually lowered very Causing situation about cannot work to gross distortion, have a strong impact on normal use, practicality has much room for improvement.

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

Utility model content

The purpose of this utility model is to provide a kind of high strength and deformation, is greatly prolonged service life, and dispels the heat Performance significantly improves, practical follow-on wet type cylinder sleeve of engine.

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

A kind of follow-on wet type cylinder sleeve of engine, including liner body, the outer peripheral face of described liner body with cooling The position of liquid contact is formed with small diameter part, and described small diameter part is arranged with around liner body one week in enclosed heat radiation net, Described heat radiation net includes intersecting vertically and pitches the first twine and the second twine, described first twine and the second net linked together Silk all axis with described liner body are 45 ° of angles.

Described heat radiation net links together with described liner body interference fit.

The upper edge of described heat radiation net is formed with the axis extended with liner body along described liner body contour and hangs down mutually Straight upper reinforcing edge silk, the lower edge of described heat radiation net is formed and extends the axle with liner body along described liner body contour The lower reinforcing edge silk that line is perpendicular.

After using technique scheme, follow-on wet type cylinder sleeve of engine of the present utility model, break through tradition cylinder sleeve Structural form, first can wrap the radiating area that liner body is thinner around liner body for one week in enclosed heat radiation net Wrap up in, there is effect of waling in all directions, and the first twine of square crossing connection and the second twine have mutually support And restraining function, liner body is reinforced, it is to avoid relatively thin liner body deforms, especially avoid liner body to exist Occur in all directions during the effect such as the bulbs of pressure by the reciprocating contact pressure of cylinder piston and high-temperature combustion gas The deformation such as bending, thus prevent along with the inner surface using time lengthening liner body is the most coarse, cylinder piston The situation that kinematic accuracy is gradually lowered even gross distortion and cannot work occurs；And the net that dispels the heat can significantly increase cylinder sleeve originally The surface area of external side face, expands the contact area with coolant, and then effective heat dispersion strengthening liner body, significantly prolongs Long service life of aeroengine.Compared with prior art, follow-on wet type cylinder sleeve of engine of the present utility model, its intensity height is not Yielding, service life is greatly prolonged, and heat dispersion significantly improves, practical.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the broken section structural representation that this utility model uses state.

In figure:

1-liner body 11-small diameter part

2-dispels the heat net 21-the first twine

Reinforcing edge silk on 22-the second twine 23-

Reinforcing edge silk under 24-.

Detailed description of the invention

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

One of the present utility model follow-on wet type cylinder sleeve of engine, as illustrated in fig. 1 and 2, including liner body 1.

The outer peripheral face of liner body 1 is formed with small diameter part 11 at the position contacted with coolant, and small diameter part 11 is arranged with ring Around liner body 1 one weeks in enclosed heat radiation net 2, heat radiation net 2 includes intersecting vertically the first net that fork links together Silk 21 and second twine 22, the first twine 21 and the second twine 22 all axis with liner body 1 are 45 ° of angles.This practicality is new Type in actual use, 1 one weeks first can be thinner to liner body 1 in enclosed heat radiation net 2 around liner body Radiating area wrap up, there is effect of waling in all directions, and the first twine 21 and second that square crossing connects Twine 22 has mutually support and restraining function, reinforces liner body 1, it is to avoid relatively thin liner body 1 deforms, Especially avoid liner body 1 by the reciprocating contact pressure of cylinder piston (not shown) and high-temperature combustion gas The effect such as the bulbs of pressure time there is the deformation such as bending in all directions, thus prevent along with using time lengthening cylinder Set body 1 inner surface is the most coarse, cylinder piston kinematic accuracy is gradually lowered even gross distortion and situation about cannot work Occur；And the net 2 that dispels the heat can significantly increase the surface area of liner body 1 outer peripheral face, expand the contact area with coolant, enter And effectively strengthen the heat dispersion of liner body 1, it is greatly prolonged service life of aeroengine.

In order to realize the net 2 concrete attachment structure with liner body 1 of dispelling the heat, it is preferable that heat radiation net 2 and liner body 1 interference fit links together.On the basis of this structure can strengthen heat radiation net 2 and liner body 1 bonding strength, also can ensure that Heat transfer performance between heat radiation net 2 and liner body 1 is excellent and stable.

In order to the structure making heat radiation net 2 is more complete, it is preferable that the upper edge of heat radiation net 2 is formed along cylinder sleeve originally Body 1 contour extends the upper reinforcing edge silk 23 of the axis perpendicular with liner body 1, and the lower edge of heat radiation net 2 is formed along cylinder Set body 1 contour extends the lower reinforcing edge silk 24 of the axis perpendicular with liner body 1.Upper reinforcing edge silk 23 and lower reinforcing edge silk 24 can carry out receiving limit to the lower edges of heat radiation net 2 reinforces, it is to avoid edge occurs that stress is concentrated and fragile or deformation, aobvious Write and improve bulk strength.Upper reinforcing edge silk 23 and lower reinforcing edge silk 24 specifically also can be connected to one with liner body 1 interference fit Rise.

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

Claims (3)

1. a follow-on wet type cylinder sleeve of engine, including liner body, it is characterised in that: the outer peripheral face of described liner body Be formed with small diameter part at the position contacted with coolant, described small diameter part is arranged with and within one week, dissipates in enclosed around liner body Heat supply network set, described heat radiation net includes intersecting vertically and pitches the first twine and the second twine, described first twine linked together All axis with described liner body are 45 ° of angles with the second twine.

One the most according to claim 1 follow-on wet type cylinder sleeve of engine, it is characterised in that: described heat radiation net with Described liner body interference fit links together.

One the most according to claim 1 and 2 follow-on wet type cylinder sleeve of engine, it is characterised in that: described radiator-grid The upper edge of set is formed with the upper reinforcing edge silk along the extension of described liner body contour with the axis perpendicular of liner body, described The lower edge of heat radiation net is formed with the lower reinforcing edge along the extension of described liner body contour with the axis perpendicular of liner body Silk.