CN204627772U - A kind of follow-on cylinder sleeve of engine - Google Patents
A kind of follow-on cylinder sleeve of engine Download PDFInfo
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- CN204627772U CN204627772U CN201520315422.8U CN201520315422U CN204627772U CN 204627772 U CN204627772 U CN 204627772U CN 201520315422 U CN201520315422 U CN 201520315422U CN 204627772 U CN204627772 U CN 204627772U
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- pit
- liner body
- cylinder sleeve
- engine
- follow
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model proposes a kind of follow-on cylinder sleeve of engine, the inner side surface of liner body is laid with multiple pit group, and pit group comprises multiple pit along liner body axially-aligned; The length of pit group is less than the axial thickness of rectangular cross-section piston ring.The utility model breaks through the structural form of traditional cylinder sleeve, and the pit group that pit is formed can reduce the area of contact of piston ring and liner body inner side surface, reduces frictional force therebetween; Pit can be used as the containing groove of accommodating lubricant oil, and pit place place and periphery thereof all can have lubricant oil to distribute, and the inner side surface of liner body easily forms oil film, reduces friction further, and can guarantee that liner body inner side surface there will not be local friction's high temperature; Pit can be used as the containing groove of accommodating particle, avoids particle to carry out the wearing and tearing such as scratch to liner body etc.So, the utility model effectively can prevent Conventional contact wearing and tearing, abrasive wear and scuff wear, greatly increases the service life, and piston power exports efficiently smooth and easy.
Description
Technical field
The utility model relates to engine components field, is specifically related to a kind of follow-on cylinder sleeve of engine.
Background technique
The inner side surface of cylinder sleeve of engine due to the effect by high-temperature high-pressure fuel gas, and with the piston contact of high-speed motion and be very easily subject to physical damage.The phenomenon of the physical damage of cylinder sleeve mainly comprises following several:
Conventional contact wearing and tearing (normal wear): Conventional contact wearing and tearing are that piston ring and cylinder sleeve of engine minute surface rub and cause, also referred to as fretting wear.The greatest wear position of cylinder sleeve of engine minute surface is the position of piston when top dead center near first ring, often forms an obvious step.Because in this position, piston ring is maximum to cylinder sleeve of engine minute surface pressure, adds that the temperature of engine cylinder set upper side is higher, the wear resistance of metal declines, and meanwhile, piston is zero in top dead center hourly velocity, oil film is then not easy to be formed, so the basifacial wearing and tearing of cylinder sleeve of engine mirror are also larger.
Abrasive wear: abrasive wear is more containing dust owing to sucking in air, or serious carbon distribution causes.Dust sucks from top, and carbon distribution is also formed on top, so cylinder sleeve of engine minute surface Upper wear is larger.Machine oil gets rid of from the bottom up, and hard particulate is affected by gravity effect, and thus the wearing and tearing of cylinder sleeve of engine bottom are more remarkable.The feature of abrasive wear be from cylinder sleeve of engine minute surface along piston movement direction uniform straight parallel wire pull vestige.
Scuff wear: the reason of scuff wear mainly produces when lack of lubrication.Piston and piston ring do high speed to-and-fro motion in cylinder sleeve of engine minute surface.Lack of lubrication, can not form oil film between working surface, and both rubbing surfaces just have extremely small part metals directly to contact, and the high heat in the local due to friction formation is fallen apart when not walking and accumulate to a certain extent and the two will be made melting adhered.Now, if oil film recovers in time, the effect of just capable of washing and cooling, makes these smallly melt partial exfoliation and not expand; If oil film recovers slow, melt just expansion, cause abnormal scuff wear in very large range occurs, that is usual so-called scuffing of cylinder bore.Scuff wear generally occurs in cylinder sleeve of engine minute surface top near first ring at top dead center position, the metal melting adhesion of local with the groove mark of uneven broken edge and fold.Pull-cylinder phenomena also easily occur in without break-in internal-combustion engine immediately loaded-up when produce.Because comparatively thick without the I. C. engine cylinder sleeve minute surface of break-in, oil film is not easily formed, and small Metal Contact often occurs for cylinder sleeve of engine minute surface and piston face high spot, causes scuff wear thus, even kills phenomenon.
Aforementioned all wearing and tearing all cause serious infringement to cylinder sleeve, greatly reduce the working life of cylinder sleeve, and such problems demand effectively solves.
Given this, inventor furthers investigate the problems referred to above, then has this case to produce.
Model utility content
The purpose of this utility model is to provide one effectively can prevent Conventional contact wearing and tearing, abrasive wear and scuff wear, greatly increase the service life, and piston power exports efficiently smooth and easy, practical follow-on cylinder sleeve of engine.
In order to achieve the above object, the utility model adopts such technological scheme:
A kind of follow-on cylinder sleeve of engine, comprise liner body, the inner side surface of described liner body is laid with multiple pit group, and described pit group comprises multiple pit along described liner body axially-aligned; The length of described pit group is less than the axial thickness of rectangular cross-section piston ring.
Above-mentioned pit is circular or oval.
The oval major axis of above-mentioned pit and the axis being parallel of above-mentioned liner body are arranged.
The oval major axis of above-mentioned pit and the axis of above-mentioned liner body have angle.
The edge of opening of above-mentioned pit has chamfering.
Inner side surface at the bottom of the hole of above-mentioned pit forms level and smooth same cambered surface with inside sidewalls face, hole.
Comprise many group pit rows, multiple above-mentioned pit group along above-mentioned liner body circumferential array is drawn together in described pit package; Many groups of described pit rows arrange along the parallel to an axis of described liner body.
Distance between adjacent above-mentioned pit row is less than the axial thickness of rectangular cross-section piston ring.
After adopting technique scheme, follow-on cylinder sleeve of engine of the present utility model, break through the structural form of traditional cylinder sleeve, the pit group that pit is formed can reduce the area of contact of rectangular cross section piston ring (the flat ring of the rectangle for low speed engine) and liner body inner side surface, reduce frictional force therebetween, and then protect from the most direct anti-wear angle liner body and rectangular cross section piston ring, and it is efficiently smooth and easy that piston is run; Pit can be used as the containing groove of the lubricant oil such as accommodating machine oil, pit place place and periphery thereof all can have lubricant oil to distribute, the inner side surface of liner body is made easily to form oil film, wearing and tearing between further minimizing rectangular cross section piston ring and liner body, with the smooth and easy Effec-tive Function being beneficial to piston, and the uniformity of oil film can guarantee that liner body inner side surface there will not be local friction's high temperature, avoids scuff wear; Pit can be used as the containing groove of accommodating particle, can, by the various particle storages in liner body, avoid particle to carry out the wearing and tearing such as scratch to liner body etc.Compared with prior art, follow-on cylinder sleeve of engine of the present utility model, it effectively can prevent Conventional contact wearing and tearing, abrasive wear and scuff wear, greatly increases the service life, and piston power exports efficiently smooth and easy, practical.
Accompanying drawing explanation
Fig. 1 is the part plan structural representation of the utility model first mode of execution;
Fig. 2 is the part plan structural representation of the utility model second mode of execution;
Fig. 3 is the part plan structural representation of the utility model the 3rd mode of execution;
Fig. 4 is the broken section structural representation of the utility model using state;
Fig. 5 is the structure for amplifying schematic diagram of local A in Fig. 4.
In figure:
1-liner body 11-pit
111-chamfering 112-cheats end inner side surface
113-cheats inside sidewalls face 10-pit group
100-pit is arranged
2-rectangular cross-section piston ring.
Embodiment
In order to explain the technical solution of the utility model further, be described in detail below by specific embodiment.
The follow-on cylinder sleeve of engine of one of the present utility model, as Figure 1-5, comprises liner body 1.
The inner side surface of liner body 1 is laid with multiple pit group 10, and pit group 10 comprises multiple pit 11 along liner body 1 axially-aligned; The length of pit group 10 is less than the axial thickness of rectangular cross-section piston ring 2.Like this, pit group 10 can cover completely by rectangular cross-section piston ring 2 on axial thickness, still can play independent sealed effect, more can match with another rectangular cross-section piston ring 2 and realize effective hermetic seal, in esse oil ring (not shown) also can to carrying out certain hermetic seal; And pit 11 size is little, and distribution is more even, effectively can receive, and have the surface tension because of oil droplet to the oil droplet of the lubricant oil such as machine oil, has the opening that part oil droplet protrudes pit 11, is convenient to rectangular cross-section piston ring 2 sucking-off and scrapes carry out cloth oil.The cloth oil of the lubricant oil such as machine oil can be carried out on the inner side surface of liner body 1 when rectangular cross-section piston ring 2 matches move upward with oil ring, and parts of lubricating oil can be stored in pit 11, by the lubricant oil sucking-off stored in pit 11 or part can be scraped when rectangular cross-section piston ring 2 matches move downward with oil ring, the inner side surface making lubricant oil evenly be laid in liner body 1 forms oil film, no matter namely rectangular cross-section piston ring 2 matches with oil ring and moves upward or move downward the inner side surface that enough lubricant oil is distributed on liner body 1.In actual use, the pit group 10 that pit 11 is formed can reduce the area of contact of rectangular cross section piston ring (the flat ring of the rectangle for low speed engine) 2 and liner body 1 inner side surface, reduce frictional force therebetween, and then protect from the most direct anti-wear angle liner body 1 and rectangular cross section piston ring 2, and it is efficiently smooth and easy that piston (not shown) is run; Pit 11 can be used as the containing groove of the lubricant oil such as accommodating machine oil, pit place place and periphery thereof all can have lubricant oil to distribute, the inner side surface of liner body 1 is made easily to form oil film, wearing and tearing between further minimizing rectangular cross section piston ring 2 and liner body 1, with the smooth and easy Effec-tive Function being beneficial to piston, and the uniformity of oil film can guarantee that liner body 1 inner side surface there will not be local friction's high temperature, avoids scuff wear; Pit 11 can be used as the containing groove of accommodating particle, can, by the various particle storages in liner body 1, avoid particle to carry out the wearing and tearing such as scratch to liner body 1 etc.
Preferably, pit 11 is circular or oval.Such structure is convenient to shaping and can not be formed and cause to rectangular cross section piston ring 2 and oil ring etc. the wedge angle hung up.
Preferably, the oval major axis of pit 11 and the axis being parallel of liner body 1 are arranged.Like this, at liner body 1 axially, pit 11 is longer, is beneficial to the contact slide of taking advantage of a situation of rectangular cross section piston ring 2 and oil ring etc., reduces friction further.
Preferably, the oval major axis of pit 11 and the axis of liner body 1 have angle.This structure can form the oblique Line of contact of several angle with rectangular cross section piston ring 2 and oil ring etc., rectangular cross section piston ring 2 and oil ring etc. can be avoided directly to be hurt along the boundary slip of pit 11, or directly collide with the edge of pit 11, hinder the motion of piston.The concrete angle of angle can carry out adjusting and designing according to actual requirement, as can be 5 °, 10 °, 15 °, 20 °, 25 °, 30 °, 35 °, 40 ° or 45 °.
In order to avoid rectangular cross section piston ring 2 and oil ring etc. to be hurt by the edge of pit 11 further, and do not hinder the motion of piston, preferably, the edge of opening of pit 11 has chamfering 111.In actual use, the edge of opening that rectangular cross section piston ring 2 and oil ring etc. can have a chamfering 111 at pit 11 is taken advantage of a situation and is slipped over.Chamfering 111 specifically can be rounded corner, and effect of taking advantage of a situation is more excellent.
Preferably, inner side surface 112 at the bottom of the hole of pit 11 forms level and smooth same cambered surface with inside sidewalls face 113, hole.Such structure can make the oil droplet of the lubricant oil such as machine oil be only freely be contained in pit 11 by effects such as absorption and surface tension, be formed into there being the circulation to substitute oil stream, guarantee the effectively fresh of lubricant oil, there will not be in remaining between certain face and face corner angle all the time and cannot flow out, because impure or corrosive goods confrontation liner body 1 cause corrosion to wait situation about damaging.
In order to reduce friction area and cloth oil more uniformly and effectively to rectangular cross section piston ring 2 and oil ring etc., preferably, comprise many group pit rows 100, pit row 100 comprises multiple pit group 10 along liner body 1 circumferential array; Many groups pit row 100 arranges along the parallel to an axis of liner body 1.Namely the even proper alignment of pit 11 is on the inner side surface of liner body 1, the motion steady and smooth more of piston.
Preferably, the distance between adjacent pit row 100 is less than the axial thickness of rectangular cross-section piston ring 2.This structure can make rectangular cross section piston ring 2 for completely by one row pit arrange 100 time enter lower one deck pit row 100, can ensure that rectangular cross section piston ring 2 is corresponding with pit 11 all the time, ensure pit 11 act on validity.
Follow-on cylinder sleeve of engine of the present utility model, the spacing etc. that the quantity of pit row pits group, the quantity of pit row and adjacent pit are arranged all can be carried out adjusting and designing according to actual requirement; Hole end inner side surface also can carry out adjusting and designing according to actual requirement with the concrete form in inside sidewalls face, hole; The concrete form, size etc. of chamfering also can carry out adjusting and designing according to actual requirement; The concrete setting direction of the major axis of oblong pits can carry out adjusting and designing according to actual requirement; The concrete shape of pit, size, spacing, quantity and distribution form etc. all can be carried out adjusting and designing according to actual requirement; The size of pit group, quantity, the quantity of pit group pits and the spacing etc. of adjacent pit group all can be carried out adjusting and designing according to actual requirement, and the quantity of pit group pits can be 3-10, specifically can be 3,4,5,6,7,8,9 or 10; The main body of liner body is preferably existing structure, but can be cooperation the technical solution of the utility model and do adaptive structural adjustment.
Product form of the present utility model is not limited to this case diagram and embodiment, and anyone carries out suitable change or the modification of similar thinking to it, all should be considered as not departing from patent category of the present utility model.
Claims (8)
1. a follow-on cylinder sleeve of engine, comprises liner body, it is characterized in that: the inner side surface of described liner body is laid with multiple pit group, and described pit group comprises multiple pit along described liner body axially-aligned; The length of described pit group is less than the axial thickness of rectangular cross-section piston ring.
2. the follow-on cylinder sleeve of engine of one according to claim 1, is characterized in that: above-mentioned pit is for circular or oval.
3. the follow-on cylinder sleeve of engine of one according to claim 2, is characterized in that: the oval major axis of above-mentioned pit and the axis being parallel of above-mentioned liner body are arranged.
4. the follow-on cylinder sleeve of engine of one according to claim 2, is characterized in that: the oval major axis of above-mentioned pit and the axis of above-mentioned liner body have angle.
5. the follow-on cylinder sleeve of engine of the one according to any one of claim 1-4, is characterized in that: the edge of opening of above-mentioned pit has chamfering.
6. the follow-on cylinder sleeve of engine of one according to claim 5, is characterized in that: inner side surface at the bottom of the hole of above-mentioned pit forms level and smooth same cambered surface with inside sidewalls face, hole.
7. the follow-on cylinder sleeve of engine of one according to claim 5, is characterized in that: comprise many group pit rows, multiple above-mentioned pit group along above-mentioned liner body circumferential array is drawn together in described pit package; Many groups of described pit rows arrange along the parallel to an axis of described liner body.
8. the follow-on cylinder sleeve of engine of one according to claim 7, is characterized in that: the distance between adjacent above-mentioned pit row is less than the axial thickness of rectangular cross-section piston ring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201520315422.8U CN204627772U (en) | 2015-05-15 | 2015-05-15 | A kind of follow-on cylinder sleeve of engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201520315422.8U CN204627772U (en) | 2015-05-15 | 2015-05-15 | A kind of follow-on cylinder sleeve of engine |
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CN204627772U true CN204627772U (en) | 2015-09-09 |
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CN201520315422.8U Expired - Fee Related CN204627772U (en) | 2015-05-15 | 2015-05-15 | A kind of follow-on cylinder sleeve of engine |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2540210A (en) * | 2015-07-10 | 2017-01-11 | Ford Global Tech Llc | Piston ring configured to reduce friction |
US10077838B2 (en) | 2015-07-10 | 2018-09-18 | Ford Global Technologies, Llc | Piston ring configured to reduce friction |
US10337615B2 (en) | 2015-07-10 | 2019-07-02 | Ford Global Technologies, Llc | Machine with reduced cylinder friction |
-
2015
- 2015-05-15 CN CN201520315422.8U patent/CN204627772U/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2540210A (en) * | 2015-07-10 | 2017-01-11 | Ford Global Tech Llc | Piston ring configured to reduce friction |
US10077838B2 (en) | 2015-07-10 | 2018-09-18 | Ford Global Technologies, Llc | Piston ring configured to reduce friction |
GB2540210B (en) * | 2015-07-10 | 2019-02-06 | Ford Global Tech Llc | Piston ring configured to reduce friction |
US10337615B2 (en) | 2015-07-10 | 2019-07-02 | Ford Global Technologies, Llc | Machine with reduced cylinder friction |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20170515 |
|
CF01 | Termination of patent right due to non-payment of annual fee |