CN111622856A - Piston group that V type was arranged - Google Patents
Piston group that V type was arranged Download PDFInfo
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- CN111622856A CN111622856A CN201910148263.XA CN201910148263A CN111622856A CN 111622856 A CN111622856 A CN 111622856A CN 201910148263 A CN201910148263 A CN 201910148263A CN 111622856 A CN111622856 A CN 111622856A
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- oil
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/16—Pistons having cooling means
- F02F3/20—Pistons having cooling means the means being a fluid flowing through or along piston
- F02F3/22—Pistons having cooling means the means being a fluid flowing through or along piston the fluid being liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B2075/1804—Number of cylinders
- F02B2075/1808—Number of cylinders two
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a V-shaped arranged piston group, which comprises a crankshaft, wherein at least one group of connecting rods which are arranged in a V shape by taking the crankshaft as a center line are connected on the crankshaft, a piston is sleeved on each connecting rod, the pistons on two sides are arranged in a V shape by taking the crankshaft as a center line, an annular oil cavity is arranged at the head part of the piston, a pair of pin holes are arranged on the skirt part of the piston, a pin shaft is sleeved on each pin hole, the small head of each connecting rod is sleeved on the pin shaft on the corresponding side, a high-position oil inlet and a middle-position oil outlet which are communicated with the inner cavity of the piston are arranged on the annular oil cavity, the high-position oil inlet and the middle-position oil outlet on a single piston are respectively positioned in adjacent quadrants which. The piston group has the advantages of simple and reliable structure, capability of improving the oil inlet amount and the oil inlet efficiency of the pistons on two sides and capability of ensuring that the annular oil cavity is reliably filled with lubricating oil.
Description
Technical Field
The invention mainly relates to cooling and lubricating of a V-shaped internal combustion engine piston, in particular to a V-shaped arranged piston group.
Background
The piston connecting rod group is an important part of the internal combustion engine, is a power conversion and output mechanism and takes charge of the main function of converting heat energy into mechanical work. The piston is arranged in the cylinder sleeve, the piston pin penetrates through the pin hole and the small end of the connecting rod to combine the piston and the connecting rod, when the internal combustion engine works, the working environment of the piston connecting rod group is quite severe, the piston connecting rod group bears impact force generated by high temperature, high pressure and high-speed movement, and the cooling and lubrication of parts of the piston connecting rod group are important while the mechanical strength is ensured.
In the prior art, an annular oil cavity is arranged on the inner side of a ring groove at the head part of a piston, and an oil inlet hole and an oil outlet hole are arranged for supplying oil and discharging oil to the annular oil cavity, so that the oil outlet hole and the oil inlet hole are symmetrically arranged for ensuring the filling rate of a cooling oil cavity to improve the cooling effect; lubricating oil is forcibly sprayed into the annular oil cavity from the oil inlet through the nozzle, the cooling lubricating oil vibrates the surface of the cooling oil cavity in the annular oil cavity, the heat of the head of the piston and the ring groove is taken away and then flows out of the oil outlet, and the temperature of the head and the ring groove is reduced.
And meanwhile, two oil spray holes are arranged, the oil spray holes and the oil collecting hole swing track of the connecting rod small head are on the same plane, when the oil collecting hole corresponds to the point position of the oil spray holes, lubricating oil is sprayed from the oil spray holes to enter the oil collecting hole and enter the connecting rod small head to lubricate and cool the connecting rod small head, and the oil spray holes are communicated with the annular oil cavity or the oil ring groove.
The piston connecting rod group has quite severe working conditions, the strengthening degree of the internal combustion engine is continuously improved under the large background of emission upgrading, the structure is more compact, higher detonation pressure and higher power density are the direction of continuously improving the performance of the internal combustion engine, and the problems of high temperature, poor cooling and lubrication and the like caused by high speed and high detonation pressure of the piston connecting rod group are more prominent.
When the internal combustion engine runs, the piston and the connecting rod do reciprocating motion, the instantaneous motion speed is greatly changed, and the lubricating oil is always in the processes of oil supply, lubrication, escape of the lubricating oil and oil supply again at each lubricating part of the piston connecting rod group.
The single-oil-cavity piston of the internal combustion engine with the V-shaped cylinder is different from that of an in-line internal combustion engine in working posture, the pistons are symmetrically arranged in a V-shaped included angle mode, and lubricating oil carries out impact cooling on the head of the piston along the annular oil cavity.
In the prior art, when a piston adopts a structure of one inlet (oil inlet hole) and one outlet (oil outlet hole), the oil inlet holes of one group of pistons in a cylinder are positioned at the upper side of an annular oil cavity beside a pin hole, the oil outlet holes are positioned at the lower side of the annular oil cavity beside the pin hole, the filling of lubricating oil in the annular oil cavity is lower than the normal level, the lubricating oil has relatively insufficient cooling on the highest section of the annular oil cavity, the cooling effect of the lubricating oil on the cooling oil cavity wall of the section is abnormal, the heat of a ring groove at the part is accumulated continuously, local high temperature is formed, and the risk of lubricating failure and abnormal abrasion of the; and the oil inlet hole of another group of pistons is positioned at the lower side of the annular oil cavity beside the pin hole, the oil outlet hole is positioned at the upper side of the annular oil cavity beside the pin hole, the difficulty of the lubricating oil entering the annular oil cavity is increased, the escape of the lubricating oil is increased, and the oil inlet effect is influenced. When the piston adopts a structure of two pairs of sectional special-shaped oil passages, the piston is provided with two oil inlet holes and two oil outlet holes, the structure increases the heat exchange area of the cooling oil cavity, but the retention time of lubricating oil in the annular oil cavity is insufficient, and the cooling effect is relatively insufficient.
Meanwhile, in the prior art, under the condition that lubricating oil is difficult to effectively fill the annular oil cavity, lubricating oil at the oil injection hole at the higher position is difficult to continuously enter, then the oil collection hole is in an oil shortage or insufficient state, the small connecting rod head can only obtain effective oil injection of one oil injection hole, along with the improvement of the running speed of the internal combustion engine and the connecting rod, the lubricating oil reserved by the small connecting rod head escapes more quickly, and the risk of lubricating failure of the pin and hole connection of the small connecting rod head is increased.
Under the large background of current emission upgrading, the explosion pressure of the internal combustion engine and the running speed of the piston are further improved, new requirements are provided for improving the strength of the piston and reducing the weight of the piston, the reduction of the compression height of the piston and the reduction of the weight become main technical measures, the reduction of the compression height of the piston enables the oil injection hole of the piston and the oil collecting hole of the small end of the connecting rod to form dislocation, the difficulty of lubricating oil reaching the oil collecting hole of the small end of the connecting rod is increased, and when the internal combustion engine and the piston are in abnormal working postures for a long time, the connection risk of the pin and the hole of the small end of; meanwhile, the strengthening degree of the internal combustion engine is improved, the overall heat load of the piston is further increased, the temperature of the combustion chamber is increased, and the failure risk is increased.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the piston group which is simple and reliable in structure, can improve the oil inlet amount and the oil inlet efficiency of the pistons at two sides and ensures that the annular oil cavity is reliably filled with lubricating oil.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a piston assembly that V type was arranged, includes the bent axle, be connected with at least a set of connecting rod that uses the bent axle to be the V type and arrange on the bent axle, the cover is equipped with the piston on each connecting rod, and the piston of both sides uses the bent axle to be the V type and arranges as the central line, the head of piston is equipped with annular oil pocket, and the skirt portion of piston is equipped with a pair of pinhole, the cover is equipped with the round pin axle on the pinhole, and the microcephaly suit of each connecting rod is on the round pin axle of corresponding side, set up communicating high-order inlet port and the well oil drain hole with piston cavity on the annular oil pocket, high-order inlet port and well oil drain hole on the single piston are located the high adjacent quadrant in horizontal plane respectively, and.
As a further improvement of the above technical solution:
an oil collecting hole is formed in the small end of the connecting rod, a middle oil guiding piece is installed at the middle oil discharging hole, and the middle oil guiding piece extends to the oil collecting hole.
The middle oil guide piece is arranged as a middle oil guide plate.
The middle oil guide piece is arranged as a middle oil guide pipe.
And the annular oil cavity is also provided with a low-position oil discharge hole communicated with the inner cavity of the piston, and the low-position oil discharge hole is positioned on the other side of the center line of the pin shaft.
And the low-position oil guide part for guiding oil from bottom to top along the cavity wall of the inner cavity of the piston is arranged at the low-position oil discharge hole.
The top of the piston inner cavity is provided with a strip-shaped oil filling groove, the center of the oil collecting hole is always located in the vertical mapping range of the length size of the strip-shaped oil filling groove when the connecting rod swings, and the width of the strip-shaped oil filling groove is located in the vertical mapping range of the size of the oil collecting hole.
The low-position oil guide piece is arranged as a low-position oil guide plate.
The low oil guide piece is set as a low oil guide pipe.
And the sum of the hole diameters of the middle oil drainage hole and the low oil drainage hole is equal to or larger than the hole diameter of the high oil inlet hole.
Compared with the prior art, the invention has the advantages that:
in the V-shaped piston group, the annular oil cavity is provided with a high-position oil inlet hole and a middle-position oil discharge hole which are communicated with the inner cavity of the piston, the high-position oil inlet hole and the middle-position oil discharge hole on a single piston are respectively positioned in adjacent quadrants with high horizontal plane, and the high-position oil inlet hole and the middle-position oil discharge hole on the single piston are positioned on the same side of the central line of the pin shaft. According to the piston group, the annular oil cavities on the pistons form included angles with the horizontal plane, when the internal combustion engine runs, lubricating oil enters the annular oil cavities and fills and cools the annular oil cavities, and oil inlet of each piston enters from the high-position oil inlet hole, so that the escape of the lubricating oil is reduced, and the oil inlet effect is improved; high-order inlet port and middle position oil drain hole are located the high adjacent quadrant in horizontal plane respectively, and high-order inlet port and middle position oil drain hole on the single piston are located same one side of round pin axle central line, and the middle position oil drain hole ensures that the annular oil pocket is reliably filled by lubricating oil, and lubricating oil can carry out lasting impingement cooling to the annular oil pocket wall, has avoided the emergence of the local high temperature phenomenon of piston ring groove, and overall structure is simple reliable.
Drawings
Fig. 1 is a schematic front view of embodiment 1 of the present invention.
Fig. 2 is a schematic view of the view angle a-a of fig. 1.
Fig. 3 is a schematic bottom view of the piston in embodiment 1 of the present invention.
Fig. 4 is a main sectional view schematically showing the piston in embodiment 1 of the present invention.
Fig. 5 is a schematic structural view of an oil guide in embodiment 1 of the present invention.
Fig. 6 is a schematic structural view of a low oil guide member in embodiment 1 of the present invention.
Fig. 7 is a schematic bottom view of the piston in embodiment 2 of the present invention.
Fig. 8 is a schematic structural view of an oil guide in embodiment 2 of the present invention.
Fig. 9 is a schematic structural view of a low oil guide member in embodiment 2 of the present invention.
The reference numerals in the figures denote:
1. a crankshaft; 2. a connecting rod; 21. an oil collecting hole; 3. a piston; 31. an annular oil chamber; 32. a pin hole; 33. a pin shaft; 34. a high-level oil inlet hole; 35. a middle oil discharge hole; 36. a low-level oil drain hole; 37. a strip-shaped oil injection groove; 4. a middle oil guide part; 5. and the low oil guide part.
Detailed Description
The invention will be described in further detail below with reference to the drawings and specific examples.
Example 1:
fig. 1 to 6 show a first embodiment of a piston group in a V-shaped arrangement according to the present invention, which includes a crankshaft 1, at least one group of connecting rods 2 arranged in a V-shaped manner with the crankshaft 1 as a center line are connected to the crankshaft 1, a piston 3 is sleeved on each connecting rod 2, the pistons 3 on both sides are arranged in a V-shaped manner with the crankshaft 1 as a center line, an annular oil chamber 31 is disposed at the head of the piston 3, a pair of pin holes 32 is disposed at the skirt of the piston 3, a pin shaft 33 is sleeved on each pin hole 32, the small head of each connecting rod 2 is sleeved on the pin shaft 33 on the corresponding side, a high-position oil inlet 34 and a medium-position oil outlet 35 communicated with the inner cavity of the piston 3 are disposed on the annular oil chamber 31, the high-position oil inlet 34 and the medium-position oil outlet 35 on a single piston 3 are respectively located in adjacent quadrants with a high horizontal plane. According to the piston set, the annular oil chamber 31 on each piston 3 forms an included angle with the horizontal plane, when an internal combustion engine runs, lubricating oil enters the annular oil chamber 31 and fills and cools the annular oil chamber 31, and oil inlet of each piston 3 enters from the high-position oil inlet hole 34, so that the escape of the lubricating oil is reduced, and the oil inlet effect is improved; high-order inlet port 34 and well position oil drain hole 35 are located the high adjacent quadrant in horizontal plane respectively, and high-order inlet port 34 and well position oil drain hole 35 on single piston 3 are located the same one side of round pin axle 33 central line, and well position oil drain hole 35 ensures that annular oil chamber 31 is reliably filled by lubricating oil, and lubricating oil can carry out the impingement cooling who lasts to annular oil chamber 31 wall, has avoided the emergence of 3 annular local high temperature phenomena of piston, and overall structure is simple reliable.
In this embodiment, the small end of the connecting rod 2 is provided with an oil collecting hole 21, the middle oil discharging hole 35 is provided with a middle oil guiding member 4, and the middle oil guiding member 4 extends to the oil collecting hole 21. In this structure, lead oil piece 4 through the meso position and continue the water conservancy diversion to oil collecting hole 21 with meso position oil drain hole 35 exhaust lubricating oil to carry out cooling lubrication to the small end of connecting rod 2, improved the cooling lubrication effect, thoroughly solved the problem that the small end lubricating oil of connecting rod escapes soon, and the lubrication is inefficacious.
In this embodiment, the middle oil guide 4 is a middle oil guide plate. The middle oil guide plate is welded on the inner wall of the piston 3, and the structure is simple and reliable.
In this embodiment, the annular oil chamber 31 is further provided with a low-level oil drain hole 36 communicated with the inner cavity of the piston 3, and the low-level oil drain hole 36 is located on the other side of the center line of the pin shaft 33. This low-order oil drain hole 36 and meso position oil drain hole 35 have formed double oil drain structure for lubricating oil can not flow out completely from any one of them oil drain hole, and low-order oil drain hole 36 can accelerate the flow of lubricating oil, prevent the delay of lubricating oil, and meso position oil drain hole 35 ensures that annular oil chamber 31 is reliably filled by lubricating oil, and lubricating oil can carry out lasting impingement cooling to annular oil chamber 31 wall, has avoided the emergence of the local high temperature phenomenon of piston 3 annular.
In this embodiment, the low-position oil guiding member 5 for guiding the oil from bottom to top along the cavity wall of the inner cavity of the piston 3 is installed at the low-position oil discharging hole 36. The low-position oil guide piece 5 guides oil from bottom to top along the cavity wall of the inner cavity of the piston 3, so that the lubricating oil cools and lubricates the inner cavity of the piston 3.
In this embodiment, the top of the inner cavity of the piston 3 is provided with a bar-shaped oil groove 37, the center of the oil collecting hole 21 is always located in the vertical mapping range of the length dimension of the bar-shaped oil groove 37 when the connecting rod 2 swings, and the width of the bar-shaped oil groove 37 is located in the vertical mapping range of the dimension of the oil collecting hole 21. The center of the oil collecting hole 21 in the structure is always positioned in the vertical mapping range of the length size of the strip-shaped oil filling groove 37, namely, the oil collecting hole 21 always corresponds to the strip-shaped oil filling groove 37 at the upper part in the swinging stroke of the connecting rod 2, so that a mapping type surface corresponding oil collecting structure is formed, the oil collecting time is effectively prolonged, the oil inlet amount and the oil inlet efficiency are improved, lubricating oil is continuously supplemented to the small end of the connecting rod 2, and the cooling and lubricating effects are improved; furthermore, the width of the strip-shaped oil filling groove 37 is within the vertical mapping range of the size of the oil collecting hole 21, so that the cooling lubricating oil from the strip-shaped oil filling groove 37 fully meets the requirement of the oil collecting amount of the oil collecting hole 21 below, and the problems of quick escape and lubrication failure of the lubricating oil are thoroughly solved; the strip-shaped oil filling groove 37 and the oil collecting hole 21 are arranged in the piston 3, so that the structural space of the inner cavity of the piston 3 is saved and fully utilized, the height of the compression height of the piston 3 is reduced, and conditions are created for reducing the height of the piston 3, the weight of the piston 3 and the power consumption; the cooling lubricating oil is sent into the oil collecting hole 21, the pin shaft 33 and the pin hole 32 are cooled in an auxiliary mode under the action of swinging of the connecting rod 2 while the small end of the connecting rod 2 is cooled and lubricated, the temperature of the pin shaft 33 and the temperature of the pin hole 32 are reduced, and reliability is improved.
In this embodiment, the low oil guide member 5 is a low oil guide plate. The low-level oil guide plate is welded on the inner wall of the piston 3, and the structure is simple and reliable.
In this embodiment, the sum of the diameters of the middle position oil drain hole 35 and the low position oil drain hole 36 is larger than the diameter of the high position oil inlet hole 34. This arrangement prevents the lubricating oil from flowing out completely from any one of the oil drain holes, ensuring reliable filling of the annular oil chamber 31 with the lubricating oil.
Example 2:
fig. 7 to 9 show a second embodiment of a piston group of V-shaped arrangement of the invention, which is substantially identical to embodiment 1, except that: in this embodiment, the middle oil guide 4 is set as a middle oil guide pipe. The low oil guide member 5 is set as a low oil guide pipe. The middle oil guide pipe and the low oil guide pipe are cast in the piston 3, and the structure is simple and reliable.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (10)
1. The utility model provides a piston group that V type was arranged, includes bent axle (1), be connected with on bent axle (1) at least a set of connecting rod (2) that use bent axle (1) to be the V type and arrange as the central line, the cover is equipped with piston (3) on each connecting rod (2), and piston (3) of both sides use bent axle (1) to be the V type as the central line and arrange its characterized in that: the piston is characterized in that an annular oil cavity (31) is formed in the head of the piston (3), a pair of pin holes (32) is formed in the skirt portion of the piston (3), a pin shaft (33) is sleeved on the pin holes (32), small heads of all connecting rods (2) are sleeved on the pin shafts (33) on the corresponding sides, a high-position oil inlet hole (34) and a middle-position oil outlet hole (35) which are communicated with the inner cavity of the piston (3) are formed in the annular oil cavity (31), the high-position oil inlet hole (34) and the middle-position oil outlet hole (35) in a single piston (3) are respectively located in adjacent quadrants which the horizontal plane is high, and the high-position oil inlet hole (34) and the middle-position oil outlet hole (35) in the single.
2. The V-shaped arranged piston group of claim 1, wherein: an oil collecting hole (21) is formed in the small end of the connecting rod (2), a middle oil guide piece (4) is installed at the middle oil discharging hole (35), and the middle oil guide piece (4) extends to the oil collecting hole (21).
3. The V-shaped arranged piston group of claim 2, wherein: the middle oil guide piece (4) is arranged as a middle oil guide plate.
4. The V-shaped arranged piston group of claim 2, wherein: the middle oil guide piece (4) is arranged as a middle oil guide pipe.
5. The V-arrangement piston group according to any one of claims 2 to 4, characterized in that: and the annular oil cavity (31) is also provided with a low-position oil discharge hole (36) communicated with the inner cavity of the piston (3), and the low-position oil discharge hole (36) is positioned on the other side of the center line of the pin shaft (33).
6. The V-shaped arranged piston group of claim 5, wherein: and the low-position oil guide piece (5) used for guiding oil from bottom to top along the cavity wall of the inner cavity of the piston (3) is arranged at the low-position oil discharge hole (36).
7. The V-shaped arranged piston group of claim 6, wherein: the top of the inner cavity of the piston (3) is provided with a strip-shaped oil filling groove (37), the center of the oil collecting hole (21) is always located in the vertical mapping range of the length size of the strip-shaped oil filling groove (37) when the connecting rod (2) swings, and the width of the strip-shaped oil filling groove (37) is located in the vertical mapping range of the size of the oil collecting hole (21).
8. The V-shaped arranged piston group of claim 7, wherein: the low-position oil guide piece (5) is arranged as a low-position oil guide plate.
9. The V-shaped arranged piston group of claim 7, wherein: the low oil guide piece (5) is set as a low oil guide pipe.
10. A V-shaped arranged piston group according to any of claims 6 to 9, characterized in that: the sum of the bore diameters of the middle-position oil drain hole (35) and the low-position oil drain hole (36) is larger than the bore diameter of the high-position oil inlet hole (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910148263.XA CN111622856A (en) | 2019-02-28 | 2019-02-28 | Piston group that V type was arranged |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910148263.XA CN111622856A (en) | 2019-02-28 | 2019-02-28 | Piston group that V type was arranged |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111622856A true CN111622856A (en) | 2020-09-04 |
Family
ID=72270768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910148263.XA Pending CN111622856A (en) | 2019-02-28 | 2019-02-28 | Piston group that V type was arranged |
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| Country | Link |
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| CN (1) | CN111622856A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114251152A (en) * | 2020-09-22 | 2022-03-29 | 马勒汽车技术（中国）有限公司 | Lubrication mechanism for pin joint pair of internal combustion engine |
| WO2023023646A1 (en) * | 2021-08-19 | 2023-02-23 | Tenneco Inc. | Piston with enhanced undercrown cooling |
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| US4587932A (en) * | 1984-02-02 | 1986-05-13 | Kolbenschmidt Aktiengesellschaft | Liquid-cooled composite piston for internal combustion engines |
| SU1283432A1 (en) * | 1984-10-01 | 1987-01-15 | Горьковский Автомобильный Завод | Cooled piston for internal combustion engine |
| US5845611A (en) * | 1996-05-09 | 1998-12-08 | Daimler-Benz Ag | Liquid-cooled piston for internal combustion engines |
| CN101018941A (en) * | 2004-06-19 | 2007-08-15 | 玛勒有限公司 | Assembled piston for an internal combustion engine |
| CN102388213A (en) * | 2009-04-10 | 2012-03-21 | 费德罗-莫格尔公司 | Piston with crown cooling jet |
| CN106704022A (en) * | 2017-01-25 | 2017-05-24 | 无锡开普机械有限公司 | Cooling and lubricating structure for piston connecting rod of reciprocating piston type V-shaped engine |
| CN106704021A (en) * | 2015-11-17 | 2017-05-24 | 强哲菲 | Double-cooling-oil-cavity piston of internal combustion engine |
-
2019
- 2019-02-28 CN CN201910148263.XA patent/CN111622856A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4587932A (en) * | 1984-02-02 | 1986-05-13 | Kolbenschmidt Aktiengesellschaft | Liquid-cooled composite piston for internal combustion engines |
| SU1283432A1 (en) * | 1984-10-01 | 1987-01-15 | Горьковский Автомобильный Завод | Cooled piston for internal combustion engine |
| US5845611A (en) * | 1996-05-09 | 1998-12-08 | Daimler-Benz Ag | Liquid-cooled piston for internal combustion engines |
| CN101018941A (en) * | 2004-06-19 | 2007-08-15 | 玛勒有限公司 | Assembled piston for an internal combustion engine |
| CN102388213A (en) * | 2009-04-10 | 2012-03-21 | 费德罗-莫格尔公司 | Piston with crown cooling jet |
| CN106704021A (en) * | 2015-11-17 | 2017-05-24 | 强哲菲 | Double-cooling-oil-cavity piston of internal combustion engine |
| CN106704022A (en) * | 2017-01-25 | 2017-05-24 | 无锡开普机械有限公司 | Cooling and lubricating structure for piston connecting rod of reciprocating piston type V-shaped engine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114251152A (en) * | 2020-09-22 | 2022-03-29 | 马勒汽车技术（中国）有限公司 | Lubrication mechanism for pin joint pair of internal combustion engine |
| CN114251152B (en) * | 2020-09-22 | 2022-12-20 | 马勒汽车技术（中国）有限公司 | Lubrication mechanism for pin joint pair of internal combustion engine |
| US12007024B2 (en) | 2020-09-22 | 2024-06-11 | Mahle Automotive Technologies (China) Co., Ltd. | Lubricating mechanism of pin connection pair of internal combustion engine |
| WO2023023646A1 (en) * | 2021-08-19 | 2023-02-23 | Tenneco Inc. | Piston with enhanced undercrown cooling |
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Application publication date: 20200904 |
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| RJ01 | Rejection of invention patent application after publication |