CN1959091A - Oil saving piston of internal-combustion engine - Google Patents
Oil saving piston of internal-combustion engine Download PDFInfo
- Publication number
- CN1959091A CN1959091A CN 200610142606 CN200610142606A CN1959091A CN 1959091 A CN1959091 A CN 1959091A CN 200610142606 CN200610142606 CN 200610142606 CN 200610142606 A CN200610142606 A CN 200610142606A CN 1959091 A CN1959091 A CN 1959091A
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 51
- 239000003921 oil Substances 0.000 claims description 53
- 239000000314 lubricant Substances 0.000 claims description 47
- 230000015572 biosynthetic process Effects 0.000 claims description 25
- 230000007613 environmental effect Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 230000001788 irregular Effects 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 6
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 230000007547 defect Effects 0.000 claims description 2
- 230000000994 depressogenic effect Effects 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 abstract description 5
- 230000007812 deficiency Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
An oil-saving piston of internal combustion engine consists of piston skirt section, piston skirt wall and piston ring. It is featured as forming multiple groove and multiple trough hole as well as multiple nonthrough hole at said skirt section of piston then using said groove to provide stored lubrication oil and said through hole to provide supplied lubrication oil as well as said nonthrough hole to provide stored lubrication oil.
Description
Technical field:
What the present invention relates to is a kind of piston of internal-combustion engine.Particularly relate to a kind of fuel-economizing piston that reduces method and step that rubs between piston and the internal-combustion engine casing wall and a kind of internal-combustion engine of realizing this method and step.
Background technique:
Piston is internal-combustion engine " heart ", bears the mechanical load and the heat load of alternation, is one of worst key components and parts of operating conditions in the internal-combustion engine.The function of piston is to bear gas pressure, and passes to connecting rod by wrist pin and order about crankshaft rotating.Piston is worked under the condition of high temperature, high pressure, high speed, and therefore, it is serious to be heated, and owing to feature radiating condition intrinsic on the structure is very poor again, piston is worked under this harsh conditions, can produce distortion and accelerated wear test, also can produce additional load and thermal stress.So must take effective measures with the wear resistance that guarantees piston, thermal balance and guidance quality and good sealing function stably,, reduce oil consumption, noise and discharging to reduce the frictional work loss of internal-combustion engine.
Although piston is an important content of internal-combustion engine development in science and technology, intrinsic feature on its structure makes that the cylinder friction loss between casing wall and the piston skirt is not effectively improved.The piston skirt contacts with cylinder between the casing wall, if area little can not guarantee the stability of moving, if area big friction loss big.The skirt section area design of piston has been the special result who optimizes at present.But because the slit is minimum between casing wall and the piston skirt, piston is in high-speed motion, and lubricant oil can not form good oil film in the piston skirt be the major reason that produces piston distortion and accelerated wear test, and has had a strong impact on the power output of internal-combustion engine.
Disclosed internal combustion engine in the Te Kaiping 1-131847 communique, this application case discloses a kind of internal combustion engine, and this piston forms a plurality of along the circumferential groove of piston on the surface, piston skirt, keep lubricant oil at this groove, thereby guarantees to be formed at the oil film of cylinder inner face.Its deficiency is the inner face of an above-mentioned piston side face part near cylinder, along with from immediate position along circumferentially walking, piston becomes big with cylinder gap, the oil that remains in the piston skirt groove is pushed to the both sides of this groove, has reduced the lubricants capacity of this groove maintenance.When the lubricant oil maintenance dose of piston skirt groove reduces, can imagine that the oil film formation effect of cylinder inner face diminishes.So, have room for improvement.
Chinese patent publication number CN 2365410Y, in open day on February 23rd, 2000, this application case discloses a kind of piston of low friction type, and this piston has convex portion on the surface of piston skirt, to reduce piston skirt and casing wall area of contact, realizes the purpose of low friction.Its deficiency is that the piston skirt area is little, can not guarantee the stability of piston motion, has increased the vibrations and the noise of motor.Piston is in high-speed motion in addition, and it is the major reason that can't reduce frictional force, heat power consumption that lubricant oil can not effectively arrive the piston skirt.So, have room for improvement.
Chinese patent publication number CN 1320766A, on open day November 7 calendar year 2001, this application case discloses a kind of piston that reduces slip resistance, this piston forms a plurality of pits in the skirt section, when piston slides, can guarantee between piston and casing wall, to form oil film, to reduce the slip resistance of piston.Its deficiency is that lubricant oil can not arrive the piston skirt rapidly, but is splashed to casing wall by the high engine speeds running.When descent of piston, can there be major part in the cutting edge that the piston skirt lower edge is sharp the lubricant oil of casing wall to root out, and causes the film area of piston skirt and casing wall to reduce, lubrication state is bad.So, have room for improvement.
Summary of the invention:
The present invention has overcome deficiency of the prior art, and significant fuel-economizing and environmental benefit are arranged.
Constantly supply with, collect and store lubricant oil in the piston skirt, storage and cloth have applied the lubricant oil of capacity between piston skirt and casing wall, completely cut off the Metal Contact between piston skirt and the casing wall, reduced frictional force, heat power consumption between piston skirt and the casing wall.Thereby increased the power output of internal-combustion engine, reduced fuel consumption, noise and the discharging of internal-combustion engine.Reached the double benefit of fuel-economizing and environmental protection.
In order to achieve the above object,
The invention provides a kind of method that rubs between piston and the internal-combustion engine casing wall that reduces, comprise following steps:
(a) in piston motion, constantly guide lubricant oil and flow to the surface, piston skirt through the set through hole in piston skirt; And
(b) lubricant oil is stored in the non through hole of the groove of this piston skirt setting and this piston skirt setting, so that between this internal-combustion engine casing wall and this surface, piston skirt, all the time cloth has applied the lubricant oil of capacity, and completely cut off Metal Contact between casing wall and the piston skirt, reduced the frictional force between piston skirt and this casing wall eventually, and reduce this internal-combustion engine frictional work loss, heat power consumption, and improved the power output of internal-combustion engine, reduced fuel consumption, noise and discharging.Reach the double benefit of fuel-economizing and environmental protection.
In order to achieve the above object,
The invention provides a kind of fuel-economizing piston of internal-combustion engine and the method for fuel-economizing and environmental protection,
This piston comprises: piston skirt, piston skirt wall, piston ring.
Form many grooves in the piston skirt, form a plurality of through holes in the piston skirt, form a plurality of non through hole in the piston skirt.The piston skirt groove is arranged on the piston skirt, and the piston skirt through hole is arranged on the piston skirt, and the piston skirt non through hole is arranged on the piston skirt.The piston skirt groove provides storage lubricant oil, and the piston skirt through hole provides supplying lubricating oil, and the piston skirt non through hole provides storage lubricant oil.
The invention provides a kind of fuel-economizing piston of internal-combustion engine and the method for fuel-economizing and environmental protection,
During engine shutdown, piston is 0 o'clock in the motion of axial direction, shrinks the lubricant oil of gathering in the effect lower piston skirt relief of oil film tension force and piston skirt non through hole abrim.Apply full lubricant oil when internal combustion engine start next time because between piston skirt and the casing wall, stopped directly to contact between piston skirt and the casing wall, greatly reduce the friction factor between piston skirt and the casing wall thus.Thereby reach fuel-economizing and environmental protection function.
The invention provides a kind of fuel-economizing piston of internal-combustion engine and the method for fuel-economizing and environmental protection
When the piston of internal-combustion engine during along the axial direction high-speed motion, piston is subjected to the thermal expansion distortion, makes to form best design gaps between piston skirt and the casing wall, reaches optimum condition lubricated and the stable guiding of piston.The lubricant oil of internal-combustion engine constantly flows to the piston skirt and is stored in the piston skirt groove and the piston skirt non through hole by the piston skirt through hole, make the lubricant oil between piston skirt and casing wall form the fluid lubrication oil film, otherwise the lubricant oil of piston skirt groove and piston skirt non through hole also constantly soaks into diffusion to all around, forms sufficient good lubricating oil film all the time.Reduce frictional force, heat power consumption between piston skirt and the casing wall, the power output of increasing combustion engine reduces fuel consumption, noise and the discharging of internal-combustion engine.Reach the purpose of fuel-economizing and environmental protection.
Description of drawings:
Fig. 1 has illustrated the present invention 1,2---the front elevation of the piston of form of implementation.
Fig. 2 has illustrated the present invention 1,2---the sectional drawing of the piston of form of implementation.
Fig. 3 has illustrated the present invention 1,2---the sectional drawing of piston in the internal-combustion engine casing wall of form of implementation.
Fig. 4 has illustrated that the present invention 3---the piston skirt groove of form of implementation is formed at the front elevation of piston skirt with irregular shape.
Fig. 5 has illustrated that the present invention 6---the piston skirt groove of form of implementation is distributed with many along irregular direction and had both connected mutually, and the front elevation of the piston skirt groove that does not connect is mutually arranged again.
Fig. 6 has illustrated the present invention 7---the piston skirt of form of implementation is along axial direction many piston skirt grooves that distribute, and do not connect the front elevation of the circumferential piston skirt groove in base.
10 represent piston ring; 11 represent the piston skirt; 12 represent the piston skirt groove; 13 represent the piston skirt through hole; 14 represent the piston skirt non through hole; 15 represent the piston skirt wall; 16 represent piston; 17 represent the internal-combustion engine casing wall.
Embodiment:
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
As schematically shown in Figure 1, 2 be the front elevation and the sectional drawing of the present invention's 1,2 pistons.
The present invention 1,2 as schematically shown in Figure 3.Piston 16 is done to-and-fro motion at a high speed in casing wall 17 when internal combustion engine, constantly guiding lubricant oil flows into 11 surfaces, piston skirt rapidly by piston skirt through hole 13, and lubricant oil is stored in the non through hole 14 of the groove 12 of this piston skirt setting and this piston skirt setting, so that between this internal-combustion engine casing wall 17 and 11 surfaces, this piston skirt, all the time cloth has applied the lubricant oil of capacity, and completely cut off Metal Contact between internal-combustion engine casing wall 17 and the piston skirt 11, reduced the frictional force between piston skirt 11 and this internal-combustion engine casing wall 17 eventually.The side pressure of piston skirt 11, the tensile stress of the piston skirt 11 of having weakened have also been cushioned thus.Thereby wear resistance, the thermostability of piston 16 have been guaranteed.Make piston 16 in high-speed motion, have guidance quality and excellent sealing performance stably.Reduced internal-combustion engine friction merit loss and heat power consumption, improved the power output of internal-combustion engine, and reduced fuel consumption, noise and discharging.Reach the double benefit of fuel-economizing and environmental protection.
Illustrated the present invention 3 as Fig. 4,2---the formation that it is characterized in that piston skirt groove 12 is shape, the depth, the variant concavity groove that is depressed in the surface, piston skirt of size normally, and the distribution of piston skirt groove 12 normally 11 is formed at piston skirt 11 with irregular shape in the piston skirt.The formation of above-mentioned piston skirt groove 12 does not run through piston skirt 11.This formation of piston skirt groove 12 has guaranteed that lubricant oil can effectively be stored in surface, piston skirt 11.
Illustrated that as Fig. 4,2 the present invention 4---the formation that it is characterized in that piston skirt through hole 13 is normally with shape, the big or small poroid piston skirt 11 that is distributed in of respectively differing, and the formation of piston skirt through hole 13 runs through piston skirt wall 15.This formation of piston skirt through hole 13 has guaranteed that lubricant oil can see through piston skirt wall 15 and flow to surface, piston skirt 11.
Illustrated that as Fig. 4,2 the present invention 5---the formation that it is characterized in that piston skirt non through hole 14 is normally with shape, the depth, the big or small poroid piston skirt 11 that is distributed in of respectively differing., the formation of piston skirt non through hole 14 does not connect piston skirt wall 15.This formation of piston skirt non through hole 14 has guaranteed that lubricant oil can effectively be stored in surface, piston skirt 11.
Illustrated the present invention 6 as Fig. 5---it is characterized in that piston skirt groove 12 in the piston skirt 11 along irregular direction many piston skirt grooves 12 that distribute, form the piston skirt groove 12 of existing mutual perforation, again the piston skirt groove 12 that does not connect mutually arranged.This formation of piston skirt groove 12 guaranteed piston skirt groove 12 in the piston skirt 11 useful area, thereby guaranteed the effective film area of piston skirt 11 with casing wall 17.
Illustrated the present invention 8 as Fig. 5,2---it is characterized in that piston skirt through hole 13 runs through piston skirt wall 15.Piston skirt through hole 13 be distributed between the piston skirt groove 12 and piston skirt groove 12 and piston skirt non through hole 14 between.This formation of piston skirt through hole 13 has guaranteed that lubricant oil can arrive piston skirt 11 rapidly by a plurality of piston skirts through hole 13.And be stored in piston skirt groove 12 and the piston skirt non through hole 14.
Illustrated the present invention 9 as Fig. 5,2---it is characterized in that piston skirt non through hole 14 does not run through piston skirt wall 15.The piston skirt non through hole 14 irregular piston skirts 11 that are distributed in, the non through hole 14 that is distributed in piston skirt 11 is deep mixed.This formation of piston skirt non through hole 14 replenished piston skirt groove 12 in the piston skirt 11 distribution defect, strengthened the useful area of 11 storage lubricant oil in the piston skirt.The film area of piston skirt 11 with casing wall 17 can farthest be provided.。Metal Contact with between isolated casing wall 17 and the piston skirt 11 reduces the frictional force between casing wall 17 and the piston skirt 11, reduces this internal-combustion engine frictional work loss, heat power consumption, thereby has increased the power output of internal-combustion engine, has reduced the fuel consumption of internal-combustion engine.
Illustrated that as Fig. 6 the present invention 7---it is characterized in that piston skirt 11 along many piston skirt grooves 12 of axial direction distribution, every axial piston skirt groove 12 does not connect the circumferential piston skirt groove 12 in base.When lubricant oil was stored in piston skirt groove 12,11 grids that formed lubricant oil in the piston skirt were not because every axial piston skirt groove 12 connects the circumferential piston skirt groove 12 in base, the minimizing so lubricant oil can not run off.Guarantee that between casing wall 17 and piston skirt 11 storage and cloth have applied the lubricant oil of capacity.
Below in conjunction with the accompanying drawings to a kind of fuel-economizing piston that reduces method and step that rubs between piston and the internal-combustion engine casing wall and a kind of internal-combustion engine of realizing this method and step of the present invention; the structure that comprises each constituent element; function has been carried out clear; detailed description, those skilled in the art according to the present invention specification to a kind of reduce the fuel-economizing piston of method and step that rubs between piston and the internal-combustion engine casing wall and a kind of internal-combustion engine of realizing this method and step and/or any change that its constituent element is done of the present invention; change and all be within protection scope of the present invention.The present invention has reached the double benefit of fuel-economizing and environmental protection simultaneously, has promotion and use value very widely.
Industrial applicibility:
The invention reside in provides a kind of fuel-economizing piston that reduces method and the step that rubs between piston and the internal combustion engine casing wall and a kind of internal combustion engine of realizing this method and step, and this piston can be widely used in:
Explosive motor: comprise vehicle, boats and ships, tank, generator, mining machinery etc.
Compressor: comprise compressor of air conditioner, air compressor, industrial refrigeration compressor etc.
Oil-saving effect and environmental benefit are very remarkable.
Claims (9)
1, a kind of method that rubs between piston and the internal-combustion engine casing wall that reduces comprises following steps:
(a) in piston motion, constantly guide lubricant oil and flow to the surface, piston skirt through the set through hole in piston skirt; And
(b) lubricant oil is stored in the non through hole of the groove of this piston skirt setting and this piston skirt setting, so that between this internal-combustion engine casing wall and this surface, piston skirt, all the time cloth has applied the lubricant oil of capacity, and completely cut off Metal Contact between casing wall and the piston skirt, reduced the frictional force between piston skirt and this casing wall eventually, reduce this internal-combustion engine frictional work loss, heat power consumption, improved the power output of internal-combustion engine, reduced fuel consumption, noise and discharging.Thereby reach the double benefit of fuel-economizing and environmental protection.
2, for reaching the purpose of claim 1, provide a kind of fuel-economizing piston of internal-combustion engine, having comprised:
The piston skirt, piston skirt wall, piston ring.
Form many grooves in the piston skirt, form a plurality of through holes in the piston skirt, form a plurality of non through hole in the piston skirt.The piston skirt groove is arranged on the piston skirt, and the piston skirt through hole is arranged on the piston skirt, and the piston skirt non through hole is arranged on the piston skirt.The piston skirt through hole provides supplying lubricating oil, and the piston skirt groove provides storage lubricant oil, and the piston skirt non through hole provides storage lubricant oil.
3, piston as claimed in claim 2,
It is characterized in that:
The formation of described piston skirt groove is shape, the depth, the variant concavity groove that is depressed in the surface, piston skirt of size normally, and the distribution of piston skirt groove normally is formed at the piston skirt in the piston skirt with irregular shape.The formation of above-mentioned piston skirt groove does not run through the piston skirt.This formation of piston skirt groove has guaranteed that lubricant oil can effectively be stored in the surface, piston skirt.
4, piston as claimed in claim 2,
It is characterized in that:
Normally with shape, the variant poroid piston skirt that is distributed in of size, the formation of piston skirt through hole runs through the piston skirt wall in the formation of described piston skirt through hole.This formation of piston skirt through hole has guaranteed that lubricant oil can see through the piston skirt wall and drain into the surface, piston skirt.
5, piston as claimed in claim 2,
It is characterized in that:
The poroid piston skirt that is distributed in that the formation of described piston skirt non through hole normally respectively differs with shape, the depth, size.The formation of piston skirt non through hole does not connect the piston skirt wall.This formation of piston skirt non through hole has guaranteed that lubricant oil can effectively be stored in the surface, piston skirt.
6, piston as claimed in claim 3,
It is characterized in that:
Along many piston skirt grooves of irregular direction distribution, many piston skirt grooves along irregular direction distribution form promptly to be had the piston skirt groove of mutual perforation and the piston skirt groove that does not connect is mutually arranged again described piston skirt groove in the piston skirt.This formation of piston skirt groove has guaranteed the useful area of piston skirt groove in the piston skirt, has therefore guaranteed to be formed at the effective film area between piston skirt and the casing wall.
7, as claim 3,6 described pistons,
It is characterized in that:
Described piston skirt is along many piston skirt grooves of axial direction distribution, and every axial piston skirt groove does not connect the circumferential piston skirt groove in base, piston skirt.When lubricant oil is stored in the piston skirt groove, formed the grid of lubricant oil in the piston skirt, because every axial piston skirt groove does not connect the circumferential piston skirt groove in base, the minimizing so assurance lubricant oil can not run off.Guarantee that between casing wall and piston skirt storage and cloth have applied the lubricant oil of capacity.
8, as claim 4,5 described pistons,
It is characterized in that:
Described piston skirt through hole runs through the piston skirt wall.The piston skirt through hole be distributed between the groove of piston skirt and the piston skirt groove in.This formation of piston skirt through hole has guaranteed that lubricant oil can arrive the surface, piston skirt rapidly by a plurality of piston skirts through hole.And lubricant oil is stored in piston skirt groove and the piston skirt non through hole.Form the lubricant film between piston skirt and the casing wall, the Metal Contact with between isolated casing wall and the piston skirt reduces frictional force, heat power consumption between casing wall and the piston skirt, thereby reaches the function of fuel-saving environmental protection.
9, as claim 4,5 described pistons,
It is characterized in that:
Described piston skirt non through hole is not run through the piston skirt wall.The irregular piston skirt that is distributed in of piston skirt non through hole.The non through hole that is distributed in the piston skirt is deep mixed.This formation of piston skirt non through hole has replenished the distribution defect of piston skirt groove in the piston skirt, has strengthened the useful area at piston skirt storage lubricant oil.The film area of piston skirt and casing wall can farthest be provided.Metal Contact with between isolated casing wall and the piston skirt reduces frictional force, heat power consumption between casing wall and the piston skirt.Thereby increased the power output of internal-combustion engine, reduced fuel consumption, noise and the discharging of internal-combustion engine.Fuel-economizing and environmental benefit are very remarkable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101426064A CN100516490C (en) | 2006-08-25 | 2006-10-20 | Method for reducing friction between piston and cylinder wall of internal combustion engine and fuel-saving piston |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610104526.X | 2006-08-25 | ||
| CN200610104526 | 2006-08-25 | ||
| CNB2006101426064A CN100516490C (en) | 2006-08-25 | 2006-10-20 | Method for reducing friction between piston and cylinder wall of internal combustion engine and fuel-saving piston |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1959091A true CN1959091A (en) | 2007-05-09 |
| CN100516490C CN100516490C (en) | 2009-07-22 |
Family
ID=38070926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101426064A Expired - Fee Related CN100516490C (en) | 2006-08-25 | 2006-10-20 | Method for reducing friction between piston and cylinder wall of internal combustion engine and fuel-saving piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100516490C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008055450A1 (en) * | 2006-11-10 | 2008-05-15 | Yujin Chen | A piston of an engine |
| CN101846013A (en) * | 2010-05-25 | 2010-09-29 | 浙江博瑞车业有限公司 | Piston |
| CN103147840A (en) * | 2012-12-18 | 2013-06-12 | 宁波大叶园林设备有限公司 | Petrol engine for turbulence reversing emission reducing of logarithmic differentiation isogonal line skirt edge of piston skirt |
| CN103410626A (en) * | 2013-06-10 | 2013-11-27 | 吉林大学 | Internal combustion engine piston with surface texture forms |
| CN104763550A (en) * | 2015-04-03 | 2015-07-08 | 长春工程学院 | Energy-saving and environmentally-friendly piston of internal combustion engine |
| CN105065165A (en) * | 2015-08-12 | 2015-11-18 | 江苏大学 | Plunger and plunger coupling piece of diesel engine fuel injection pump |
| CN106677917A (en) * | 2017-03-08 | 2017-05-17 | 长春工程学院 | Engine piston capable of saving energy and prolonging service life |
| CN109296471A (en) * | 2018-09-10 | 2019-02-01 | 天津酝环科技发展有限公司 | A kind of high-efficiency lubricating piston |
| CN113027631A (en) * | 2019-12-24 | 2021-06-25 | 丰田自动车株式会社 | Piston |
| CN113669230A (en) * | 2020-05-15 | 2021-11-19 | 安徽美芝制冷设备有限公司 | Pistons and Compressors |
-
2006
- 2006-10-20 CN CNB2006101426064A patent/CN100516490C/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008055450A1 (en) * | 2006-11-10 | 2008-05-15 | Yujin Chen | A piston of an engine |
| CN101846013A (en) * | 2010-05-25 | 2010-09-29 | 浙江博瑞车业有限公司 | Piston |
| CN103147840A (en) * | 2012-12-18 | 2013-06-12 | 宁波大叶园林设备有限公司 | Petrol engine for turbulence reversing emission reducing of logarithmic differentiation isogonal line skirt edge of piston skirt |
| CN103147840B (en) * | 2012-12-18 | 2015-04-22 | 宁波大叶园林设备有限公司 | Petrol engine for turbulence reversing emission reducing of logarithmic differentiation isogonal line skirt edge of piston skirt |
| CN103410626A (en) * | 2013-06-10 | 2013-11-27 | 吉林大学 | Internal combustion engine piston with surface texture forms |
| CN103410626B (en) * | 2013-06-10 | 2015-04-22 | 吉林大学 | Internal combustion engine piston with surface texture forms |
| CN104763550A (en) * | 2015-04-03 | 2015-07-08 | 长春工程学院 | Energy-saving and environmentally-friendly piston of internal combustion engine |
| CN105065165A (en) * | 2015-08-12 | 2015-11-18 | 江苏大学 | Plunger and plunger coupling piece of diesel engine fuel injection pump |
| CN105065165B (en) * | 2015-08-12 | 2017-11-10 | 江苏大学 | The plunger and plunger matching parts of diesel injection pump |
| CN106677917A (en) * | 2017-03-08 | 2017-05-17 | 长春工程学院 | Engine piston capable of saving energy and prolonging service life |
| CN106677917B (en) * | 2017-03-08 | 2022-11-15 | 长春工程学院 | An engine piston with energy saving and life extension |
| CN109296471A (en) * | 2018-09-10 | 2019-02-01 | 天津酝环科技发展有限公司 | A kind of high-efficiency lubricating piston |
| CN113027631A (en) * | 2019-12-24 | 2021-06-25 | 丰田自动车株式会社 | Piston |
| CN113027631B (en) * | 2019-12-24 | 2022-12-09 | 丰田自动车株式会社 | piston |
| CN113669230A (en) * | 2020-05-15 | 2021-11-19 | 安徽美芝制冷设备有限公司 | Pistons and Compressors |
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| Publication number | Publication date |
|---|---|
| CN100516490C (en) | 2009-07-22 |
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