CN105041504A - Microstructure self-lubricating oil ring - Google Patents

Microstructure self-lubricating oil ring Download PDF

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Publication number
CN105041504A
CN105041504A CN201510392928.3A CN201510392928A CN105041504A CN 105041504 A CN105041504 A CN 105041504A CN 201510392928 A CN201510392928 A CN 201510392928A CN 105041504 A CN105041504 A CN 105041504A
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CN
China
Prior art keywords
oil
ring
piston
groove
lubricating
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Pending
Application number
CN201510392928.3A
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Chinese (zh)
Inventor
王书文
张春燕
王竞杰
严飞燕
秦琛
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University of Shanghai for Science and Technology
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University of Shanghai for Science and Technology
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Publication date
Application filed by University of Shanghai for Science and Technology filed Critical University of Shanghai for Science and Technology
Priority to CN201510392928.3A priority Critical patent/CN105041504A/en
Publication of CN105041504A publication Critical patent/CN105041504A/en
Pending legal-status Critical Current

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  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

The invention relates to a microstructure self-lubricating oil ring. An oil groove is formed in the outer circumferential face of an oil ring body. The outer circle, facing a combustion chamber, of the oil groove is provided with an upper circular bank and a lower circular bank. Oil storage grooves are arranged inside the upper annular bank and the oil groove. The upper circular bank and the lower circular bank are provided with chamfers used for reducing the contact area between a piston ring and a cylinder wall. Microstructures are formed on the outer circumferential face of the oil ring body for communicating the oil storage grooves so as to form a lubricating oil channel. An oil return hole is formed in the inner circumferential face of the oil ring body so that engine oil can be prevented from being gathered between the two annular banks. According to the microstructure self-lubricating oil ring, the surface microstructure technology is well applied to a piston ring cylinder sleeve friction pair, and the self-lubricating effect is achieved. When the piston descends, residual oil on the cylinder wall can be sufficiently scraped away so that the engine oil can be prevented from entering the combustion chamber; when the piston ascends, the uniform oil distribution effect can be achieved, and a large amount of lubricating oil can be stored; self-lubricating can be performed when an engine operates with not enough oil, so that friction abrasion between the cylinder sleeve and the piston ring is reduced, the service life is prolonged, energy conservation and emission reduction are achieved, and the working efficiency of the engine is improved.

Description

Micro-texture self-lubricating oil ring
Technical field
The present invention relates to a kind of piston ring, especially a kind of piston ring with self-lubricating function.
Background technique
Piston ring is divided into compression ring and oil ring.The effect of oil ring is cloth oil and frizing, and during engine running, the lubricant oil of oil sump is thrown on cylinder wall by parts.When piston stroking upward, lubricant oil is evenly distributed on cylinder wall by oil ring, in order to lubrication; During descent of piston, lubricant oil unnecessary on cylinder wall scrapes off by oil ring, in order to avoid firing chamber scurried into by machine oil.Have multiple spill port in the circular groove that oil ring periphery is recessed, the oil that oil ring scrapes flows back to oil sump through spill port.Piston ring has ring bank, there is elasticity, during with piston reciprocates, piston ring and cylinder wall are fitted, when piston stroking upward, the lower surface of piston ring contacts with the lower surface of annular groove, when descent of piston, the upper surface of piston ring contacts with the upper surface of annular groove, thus ensures that plug top and cylinder form closed space.
Existing some problems of oil ring ubiquity, as: cloth oil is even not; Frizing is thorough not; Easy to wear; Machine oil oil consumption is high; Under the weary oily working condition of motor, oil ring meeting heavy wear, makes the working efficiency degradation of motor.
Summary of the invention
The present invention will provide a kind of micro-texture self-lubricating oil ring with surperficial micro-texture and self-lubricating function, Surface Texture technology has well been applied in piston ring and cylinder friction pair by this oil ring, machine oil can be avoided to scurry into firing chamber, feature is to carry out selflubricating when the weary oil of motor runs, and improves engine operating efficiency.
For achieving the above object, technological scheme of the present invention is: a kind of micro-texture self-lubricating oil ring, comprise oil ring body, the outer circumferential face of described oil ring body has oil groove, inner peripheral surface is provided with spring groove, and described oil groove has upper and lower ring bank towards the cylindrical in direction, firing chamber, it is characterized in that: be provided with oil storage tank in described pressed on ring bank and in oil groove, described upper and lower ring is provided with chamfering on the bank, for reducing the area of contact of piston ring and cylinder wall; Face has texture to oil ring body peripheral, for being communicated with oil storage tank, forming grease channel, making oil in oil storage tank by grease channel to casing wall selflubricating; Oil ring body inner peripheral surface has spill port, and for preventing machine oil to be gathered between two ring banks, machine oil gets back to oil sump by migration hole.
Described spring groove semicircular in shape or V-type.Described spill port is circular hole or long and narrow hole.
When descent of piston, the upper surface of described oil groove contacts with the upper surface of piston ring, described upper and lower ring bank contacts with casing wall and is scraped by the lubricant oil on casing wall, lubricant oil enters among described oil groove by the gap between piston ring lower surface and described oil groove lower surface, when piston stroking upward, the lower surface of piston ring contacts with the lower surface of described oil groove, and upper surface forms gap, lubricant oil in described oil groove extruding effect under, in up inflow oil storage tank.
The invention has the beneficial effects as follows:
Surface Texture technology has well been applied in piston ring and cylinder friction pair by the present invention, and serves the effect of selflubricating.During descent of piston, can fully the unnecessary oil on casing wall be scraped off, in order to avoid firing chamber scurried into by machine oil; During piston stroking upward, the effect of even cloth oil can not only be played, and a part of lubricant oil can be stored; And selflubricating can be carried out when the weary oil of motor runs, fall the impairment that rubs, energy-saving and emission-reduction, extend the working life of Cylinder Liner-piston Ring, improve engine operating efficiency.
Accompanying drawing explanation
Fig. 1 is structural upright partial schematic diagram of the present invention;
Fig. 2 is structure side view of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As Fig. 1, shown in 2, a kind of micro-texture self-lubricating oil ring, comprises oil ring body 1, oil groove 2, spring groove 5, oil storage tank 3, texture 6, spill port 7, upper and lower ring bank etc.
The outer circumferential face of oil ring body 1 has oil groove 2, and inner peripheral surface is provided with spring groove 5, and oil groove 2 has upper and lower ring bank towards the cylindrical in direction, firing chamber, is provided with oil storage tank in pressed on ring bank with side in oil groove 2, also only can retain the oil storage tank of pressed on ring bank.Upper and lower ring is provided with chamfering 4 on the bank, for reducing the area of contact of piston ring and cylinder wall; Oil ring body 1 outer circumferential face has texture 6 and stores lubricant oil, be communicated with oil storage tank 3, form grease channel, make oil in oil storage tank 3 by grease channel to casing wall selflubricating; Described oil ring body 1 inner peripheral surface has spill port, and prevent machine oil to be gathered between two ring banks, machine oil gets back to oil sump by spill port.Spring groove 5 semicircular in shape or V-type.Spill port 7 is circular hole or long and narrow hole.
Oil ring body adopts Surface Texture technology, and namely Surface Texture processes on friction surface has the pit of certain size and arrangement or the array of minute groove, and it well can improve the frictional behavior of friction pair by storage abrasive particle and lubricant oil.In the present invention mainly as oil transportation channel.
Upper and lower ring bank chamfered in the same way: slotted oil control ring is having two ring banks towards the cylindrical in direction, firing chamber, all chamfered is done on the bank at two rings, reduce the area of contact of piston ring and cylinder wall, contact is increased, thus make frizing more thorough, machine oil oil consumption is minimized, and reduces the oil level entering firing chamber.
Design oil storage tank: during engine running, the lubricant oil of oil sump is thrown on cylinder wall by parts, and during descent of piston, lubricant oil unnecessary on cylinder wall scrapes off by oil ring, and a part of oil can be stored in the oil storage tank of oil ring self; Each oil ring designs two oil storage tanks, makes lubricant oil be able to abundant storage.
Design texture: be designed with texture on oil ring, texture itself well can improve the frictional behavior of piston ring and cylinder friction pair by storage abrasive particle and lubricant oil, but also have an effect to be exactly form grease channel here, oil in oil storage tank is lubricated casing wall by passage, so-called selflubricating that Here it is, and ensure evenly lubrication.
Spill port designs: in order to prevent machine oil from accumulating between two ring banks, thus need spill port, spill port makes circular hole or long and narrow hole, and the present invention selects long and narrow hole.The present invention adopts boring oil ring, and comparatively hole milling oil ring has better breaking strength, improves the safety coefficient of assembling, particularly all the more so for thin type oil ring.Oil ring of holing in addition has more smooth face profile, which ensure that better frizing effect.
When descent of piston, the upper surface of oil groove 2 contacts with the upper surface of piston ring, upper and lower ring bank contacts with casing wall and is scraped by the lubricant oil on casing wall, lubricant oil enters among described oil groove 2 by the gap between piston ring lower surface and described oil groove 2 lower surface, when piston stroking upward, the lower surface of piston ring contacts with the lower surface of described oil groove 2, and upper surface forms gap, lubricant oil in oil groove 2 extruding effect under, in up inflow oil storage tank 3.
Technical characterstic of the present invention:
(1) the present invention designs two ring banks and carries out chamfered and make oil ring cloth oil evenly, and frizing is thorough;
(2) the present invention is at oil ring from designing oil storage tank with it, can store lubricant oil;
(3) the present invention designs texture on oil ring, and texture itself can be good at the frictional behavior improving cylinder liner piston ring friction pair, here can also as logical oily channel;
(4) oil ring is the invention enables to carry out selflubricating under the working condition of the weary oil of motor.

Claims (4)

1. a micro-texture self-lubricating oil ring, comprise oil ring body (1), the outer circumferential face of described oil ring body (1) has oil groove (2), inner peripheral surface is provided with spring groove (5), described oil groove (2) has upper and lower ring bank towards the cylindrical in direction, firing chamber, it is characterized in that: in described pressed on ring bank and in oil groove (2), be provided with oil storage tank (3), described upper and lower ring is provided with chamfering (4) on the bank, for reducing the area of contact of piston ring and cylinder wall; Described oil ring body (1) outer circumferential face has the texture (6) for storing lubricant oil, described texture (6) is communicated with oil storage tank (3), form grease channel, the oil in oil storage tank (3) is lubricated casing wall by grease channel; Described oil ring body (1) inner peripheral surface has spill port (7), and for preventing machine oil to be gathered between two ring banks, machine oil gets back to oil sump by spill port.
2. micro-texture self-lubricating oil ring according to claim 1, is characterized in that: described spring groove (5) semicircular in shape or V-type.
3. micro-texture self-lubricating oil ring according to claim 1, is characterized in that: described spill port (7) is circular hole or long and narrow hole.
4. according to the arbitrary described micro-texture self-lubricating oil ring of claim 1-3, it is characterized in that: when descent of piston, the upper surface of described oil groove (2) contacts with the upper surface of piston ring, on described, lower ring bank contacts with casing wall and is scraped by the lubricant oil on casing wall, lubricant oil enters among described oil groove (2) by the gap between piston ring lower surface and described oil groove (2) lower surface, when piston stroking upward, the lower surface of piston ring contacts with the lower surface of described oil groove (2), and upper surface forms gap, lubricant oil in described oil groove (2) is under the effect of extruding, in up inflow oil storage tank (3).
CN201510392928.3A 2015-07-07 2015-07-07 Microstructure self-lubricating oil ring Pending CN105041504A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510392928.3A CN105041504A (en) 2015-07-07 2015-07-07 Microstructure self-lubricating oil ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510392928.3A CN105041504A (en) 2015-07-07 2015-07-07 Microstructure self-lubricating oil ring

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CN105041504A true CN105041504A (en) 2015-11-11

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108999717A (en) * 2018-08-15 2018-12-14 全椒县全动机械有限公司 A kind of diesel engine piston structure
CN110799783A (en) * 2017-06-19 2020-02-14 辉门布尔沙伊德有限公司 Oil scraping piston ring
CN112628400A (en) * 2020-12-19 2021-04-09 上海都宁机电设备有限公司 Anti-breaking self-lubricating piston ring

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003286899A (en) * 2002-03-29 2003-10-10 Teikoku Piston Ring Co Ltd Combination oil ring
US20060102131A1 (en) * 2004-11-17 2006-05-18 Samyoung Machinery Co., Ltd. Piston apparatus with oil scraper ring
CN2799872Y (en) * 2005-03-17 2006-07-26 浙江普礼汽配制造有限公司 Steel oil ring
JP2008232312A (en) * 2007-03-22 2008-10-02 Riken Corp Wire for two piece oil ring
CN201835939U (en) * 2010-10-27 2011-05-18 南京飞燕活塞环股份有限公司 Oil ring of piston ring group for engine
US20130147124A1 (en) * 2010-08-20 2013-06-13 Zengli Yang Oil-reserving piston ring
CN104214004A (en) * 2014-09-11 2014-12-17 仪征威龙发动机零部件有限公司 Oil ring of piston ring set of internal combustion engine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003286899A (en) * 2002-03-29 2003-10-10 Teikoku Piston Ring Co Ltd Combination oil ring
US20060102131A1 (en) * 2004-11-17 2006-05-18 Samyoung Machinery Co., Ltd. Piston apparatus with oil scraper ring
CN2799872Y (en) * 2005-03-17 2006-07-26 浙江普礼汽配制造有限公司 Steel oil ring
JP2008232312A (en) * 2007-03-22 2008-10-02 Riken Corp Wire for two piece oil ring
US20130147124A1 (en) * 2010-08-20 2013-06-13 Zengli Yang Oil-reserving piston ring
CN201835939U (en) * 2010-10-27 2011-05-18 南京飞燕活塞环股份有限公司 Oil ring of piston ring group for engine
CN104214004A (en) * 2014-09-11 2014-12-17 仪征威龙发动机零部件有限公司 Oil ring of piston ring set of internal combustion engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110799783A (en) * 2017-06-19 2020-02-14 辉门布尔沙伊德有限公司 Oil scraping piston ring
CN108999717A (en) * 2018-08-15 2018-12-14 全椒县全动机械有限公司 A kind of diesel engine piston structure
CN112628400A (en) * 2020-12-19 2021-04-09 上海都宁机电设备有限公司 Anti-breaking self-lubricating piston ring
CN112628400B (en) * 2020-12-19 2023-05-23 上海都宁机电设备有限公司 Anti-breaking self-lubricating piston ring

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Application publication date: 20151111

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