WO2013020478A1 - Cooling and lubricating structure for use on piston rod of reciprocating internal combustion engine - Google Patents
Cooling and lubricating structure for use on piston rod of reciprocating internal combustion engine Download PDFInfo
- Publication number
- WO2013020478A1 WO2013020478A1 PCT/CN2012/079592 CN2012079592W WO2013020478A1 WO 2013020478 A1 WO2013020478 A1 WO 2013020478A1 CN 2012079592 W CN2012079592 W CN 2012079592W WO 2013020478 A1 WO2013020478 A1 WO 2013020478A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston
- oil
- connecting rod
- hole
- bushing
- Prior art date
Links
- 239000003921 oil Substances 0.000 claims abstract description 94
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 238000005461 lubrication Methods 0.000 claims abstract description 17
- 238000002485 combustion reaction Methods 0.000 claims abstract description 13
- 239000010687 lubricating oil Substances 0.000 claims abstract description 11
- 230000001050 lubricating effect Effects 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/06—Arrangements for cooling pistons
- F01P3/10—Cooling by flow of coolant through pistons
Definitions
- the invention belongs to the technical field of internal combustion engines, and in particular relates to a cooling lubrication structure for a piston connecting rod of a reciprocating piston type internal combustion engine.
- the cooling and lubricating structure of the piston connecting rod of an internal combustion engine has a clever structure and a good lubricating effect, and can ensure reliable operation of the piston connecting rod for a long time.
- a cooling lubrication structure for a piston connecting rod of a reciprocating piston type internal combustion engine the connecting rod is hinged to the piston through a piston pin
- the piston includes a piston skirt and a piston head
- the piston skirt is provided with a pin hole
- the connecting rod is hinged with the piston skirt through a piston pin installed in the pin hole
- a connecting rod bushing is arranged between the connecting rod and the piston pin, and the piston pin and the pin hole are installed a piston bushing
- an inner wall of the piston skirt is provided with a skirt oil hole, a nozzle is provided in the oil hole of the skirt
- an annular oil collecting groove is arranged in the piston head, and an opening of the annular oil collecting groove is arranged
- the annular spring piece has an oil inlet gap on the spring piece, and the oil inlet gap corresponds to the skirt oil hole
- the inner wall of the annular oil collecting groove is provided with an oil supply hole
- the annular oil collecting groove passes through the oil supply hole and The space at
- the oil supply hole has an aperture between ⁇ 2 and ⁇ 6 ⁇ .
- the center line of the oil supply hole has a certain angle with the central axis of the piston.
- the included angle is 60. ⁇ 70. between.
- the outer end of the connecting rod oil hole has a tapered funnel shape.
- the invention has the advantages that: the structure of the invention is ingenious, by providing an annular oil collecting groove at the head of the piston and opening an oil supply hole on the annular oil collecting groove, so that a part of the cooling lubricating oil is due to the reciprocating motion of the piston.
- the oil supply hole into the space at the top of the connecting rod, and through the connecting rod oil hole and the bushing oil hole into the bushing lubricating oil passage, lubricating the connecting rod bushing, the piston bushing and the piston pin, improving between them Cooling lubrication conditions, reducing the frictional resistance of their mutual rotation, good lubrication effect, can ensure the long-term reliable operation of the piston rod.
- Figure 1 is a front elevational view of the structure of the present invention.
- Figure 2 is a cross-sectional view taken along the line ⁇ - ⁇ of Figure 1.
- the present invention relates to a cooling lubrication structure for a piston rod 9 of a reciprocating piston type internal combustion engine, the connecting rod 9 being hinged to a piston by a piston pin 7, the piston including a piston skirt 6 and a piston head 1; the piston skirt 6 is provided with a pin hole, the connecting rod 9 is hinged with the piston skirt 6 through a piston pin 7 mounted in the pin hole, and a connecting rod lining is arranged between the connecting rod 9 and the piston pin 7.
- a sleeve 3 is disposed between the piston pin 7 and the pin hole; the inner side wall of the piston skirt 6 is provided with a skirt oil hole 13 3 , and a skirt 10 is provided in the skirt oil hole 13;
- the piston head 1 is provided with an annular oil collecting groove 2, and the opening of the annular oil collecting groove 1 is provided with an annular spring piece 4, and the spring piece 4 is provided with an oil inlet gap 8, an oil inlet gap 8 and the skirt portion.
- the oil hole 13 corresponds to the oil hole 1 1 , and the annular oil collecting groove 1 communicates with the space of the top of the connecting rod 9 through the oil supply hole 1 1; the top of the connecting rod 9 A connecting rod oil hole 12 is disposed, and the connecting rod bushing 3 is provided with a bushing oil hole 14 corresponding to the connecting rod oil hole 12, and a half ring and a bushing oil hole are arranged on the inner peripheral wall of the connecting rod bushing 3. 14 bushing lube channel 15 on the same circumference.
- the diameter of the oil supply hole 11 is preferably set between ⁇ 2- ⁇ 6 ⁇ .
- the center line of the oil supply hole 11 and the central axis of the piston should be set at a certain angle. ⁇ , the angle ⁇ is preferably 60. _70. between.
- the outer end of the connecting rod oil hole 12 is preferably provided in a tapered funnel shape.
- the nozzle 10 sprays the cooling lubricating oil into the annular oil collecting groove 2 through the skirt oil hole 13 and the oil inlet gap 8. Since the spring piece 4 on the opening of the annular oil collecting groove 2 has a certain elasticity, the piston reciprocates.
- the injected cooling lubricating oil can be oscillated in the annular sump 2; about one-third of the cooling lubricating oil passes through the oil supply hole 11 into the space at the top of the connecting rod 9 due to the oscillating action, and then passes through the connecting rod oil.
- the hole 12 and the bushing oil hole 14 enter the bushing oil passage 15 to lubricate the connecting rod bushing 3, the piston bushing 5 and the piston pin 7, improve the cooling lubrication condition between them, and reduce the friction between them.
- the resistance and the lubricating effect are good, and the piston connecting rod 9 can be reliably operated for a long time.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
A cooling and lubricating structure for use on a piston rod of a reciprocating internal combustion engine. A piston skirt (6) is provided with a pin hole. A connecting rod (9) is hinged to the piston skirt (6) via a piston pin (7). The connecting rod (9) and the piston pin (7) have arranged therebetween a connecting rod bushing (3). The piston pin (7) and the pin hole have arranged therebetween a piston bushing (5). The piston skirt is provided on an inner wall thereon with a skirt oil hole (13). The skirt oil hole (13) has arranged therein a nozzle (10). A piston head (1) has arranged therein an annular oil collecting trap (2). The annular oil collecting trap (2) has arranged at an opening thereof an annular spring piece (4). The spring piece (4) has opened thereon an oil inlet gap (8). The oil inlet gap (8) corresponds to the skirt oil hole (13). The annular oil collecting trap (2) is provided on an inner wall thereof with an oil supply hole (11). The annular oil collecting trap (2) is in communication with a space above the connecting rod (9) via the oil supply hole (11). The connecting rod (9) is provided on the top part thereof with a connecting rod oil hole (12). The connecting rod bushing (3) is provided thereon with a bushing oil hole (14) correspondingly in communication with the connecting rod oil hole (12). The connecting rod bushing (3) is provided on an inner circumferential wall thereof with a semi-circular bushing lubricating oil passage (15) on a same circumference with the bushing oil hole (14). The present invention provides an inventive structure and a great lubrication effect and ensures reliable operation of the piston connecting rod for extended period of time.
Description
一种用于往复活塞式内燃机活塞连杆的冷却润滑结构 Cooling lubrication structure for piston connecting rod of reciprocating piston internal combustion engine
技术领域 Technical field
本发明属于内燃机技术领域， 具体是涉及一种用于往复活塞式内燃机活塞 连杆的冷却润滑结构。 The invention belongs to the technical field of internal combustion engines, and in particular relates to a cooling lubrication structure for a piston connecting rod of a reciprocating piston type internal combustion engine.
背景技术 Background technique
已知的是内燃机活塞的活塞销说和活塞衬套， 连杆衬套有机油来冷却润滑， 并防止卡住或烧伤。 例如已经提出了的经喷管空隙喷出的机油到达环形集油槽 内， 由于活塞的往复运动， 使环形集油槽内书的机油振荡， 产生飞溅， 使活塞销、 活塞衬套和连杆衬套得到冷却和润滑， 但在运行过程中有时产生冷却和润滑不 充分， 为了冷却和润滑更充分， 有必要对润滑结构进行改进。 It is known that the piston pin of the internal combustion engine piston and the piston bushing, the connecting rod bushing organic oil to cool the lubrication and prevent jamming or burns. For example, the oil that has been sprayed through the nozzle gap has been introduced into the annular oil collecting groove. Due to the reciprocating motion of the piston, the oil in the ring oil collecting groove is oscillated, causing splashing, so that the piston pin, the piston bushing and the connecting rod bushing Cooling and lubrication are obtained, but cooling and lubrication are sometimes insufficient during operation. For cooling and lubrication, it is necessary to improve the lubrication structure.
发明内容 内燃机活塞连杆的冷却润滑结构， 其结构巧妙， 润滑效果好， 可保障活塞连杆 长时间可靠运行。 SUMMARY OF THE INVENTION The cooling and lubricating structure of the piston connecting rod of an internal combustion engine has a clever structure and a good lubricating effect, and can ensure reliable operation of the piston connecting rod for a long time.
按照本发明提供的技术方案： 一种用于往复活塞式内燃机活塞连杆的冷却 润滑结构， 连杆通过活塞销与活塞铰连， 活塞包括活塞裙部和活塞头部； 其特 征在于： 所述活塞裙部设有销孔， 所述连杆通过装在销孔内的活塞销与活塞裙 部铰连， 连杆与活塞销之间装有连杆衬套， 活塞销与销孔之间装有活塞衬套； 所述活塞裙部的内侧壁上设有裙部油孔， 裙部油孔内设有喷嘴； 所述活塞头部 内设有环形集油槽， 环形集油槽的开口装有一个环形的弹簧片， 在弹簧片上开 有进油空隙， 进油空隙与所述的裙部油孔相对应； 所述环形集油槽的内壁上设 有供油孔， 环形集油槽通过供油孔与连杆顶部的空间相连通； 所述连杆顶部设 有连杆油孔， 所述连杆衬套上设有与连杆油孔对应连通的衬套油孔， 连杆衬套
内周壁上设有半圈与衬套油孔在同一圓周上的衬套润滑油道。 According to the technical solution provided by the present invention: a cooling lubrication structure for a piston connecting rod of a reciprocating piston type internal combustion engine, the connecting rod is hinged to the piston through a piston pin, and the piston includes a piston skirt and a piston head; The piston skirt is provided with a pin hole, and the connecting rod is hinged with the piston skirt through a piston pin installed in the pin hole, and a connecting rod bushing is arranged between the connecting rod and the piston pin, and the piston pin and the pin hole are installed a piston bushing; an inner wall of the piston skirt is provided with a skirt oil hole, a nozzle is provided in the oil hole of the skirt; an annular oil collecting groove is arranged in the piston head, and an opening of the annular oil collecting groove is arranged The annular spring piece has an oil inlet gap on the spring piece, and the oil inlet gap corresponds to the skirt oil hole; the inner wall of the annular oil collecting groove is provided with an oil supply hole, and the annular oil collecting groove passes through the oil supply hole and The space at the top of the connecting rod is connected; the top of the connecting rod is provided with a connecting rod oil hole, and the connecting rod bushing is provided with a bushing oil hole corresponding to the connecting rod oil hole, the connecting rod bushing The inner peripheral wall is provided with a bushing lubricating oil passage on the same circumference as the bushing oil hole.
作为本发明的进一步改进， 所述供油孔的孔径在 Φ2~Φ6πιπι之间。 As a further improvement of the present invention, the oil supply hole has an aperture between Φ2 and Φ6πιπι.
作为本发明的进一步改进， 所述供油孔的中心线与活塞的中心轴线有一定 的夹角。 优选地， 该夹角在 60。~70。之间。 As a further improvement of the present invention, the center line of the oil supply hole has a certain angle with the central axis of the piston. Preferably, the included angle is 60. ~70. between.
作为本发明的进一步改进， 所述连杆油孔的外端为锥形漏斗状。 As a further improvement of the present invention, the outer end of the connecting rod oil hole has a tapered funnel shape.
本发明与现有技术相比， 优点在于： 本发明结构巧妙， 通过在活塞头部设 置环形集油槽， 并在环形集油槽上开设供油孔， 使得一部分冷却润滑油会由于 活塞的往复运动而通过供油孔进入连杆顶部的空间内， 并经由连杆油孔和衬套 油孔进入衬套润滑油道内， 对连杆衬套、 活塞衬套以及活塞销进行润滑， 改善 它们之间的冷却润滑条件， 减少它们相互转动的摩擦阻力， 润滑效果好， 可保 障活塞连杆长时间可靠运行。 Compared with the prior art, the invention has the advantages that: the structure of the invention is ingenious, by providing an annular oil collecting groove at the head of the piston and opening an oil supply hole on the annular oil collecting groove, so that a part of the cooling lubricating oil is due to the reciprocating motion of the piston. Through the oil supply hole into the space at the top of the connecting rod, and through the connecting rod oil hole and the bushing oil hole into the bushing lubricating oil passage, lubricating the connecting rod bushing, the piston bushing and the piston pin, improving between them Cooling lubrication conditions, reducing the frictional resistance of their mutual rotation, good lubrication effect, can ensure the long-term reliable operation of the piston rod.
附图说明 图 1为本发明的结构正视图。 图 2为图 1的 Α-Α向剖面图。 附图标记说明： 1一活塞头部、 2 环形集油槽、 3—连杆衬套、 4 活塞弹 簧片、 5—活塞衬套、 6 活塞裙部、 7—活塞销、 8—进油空隙、 9 连杆、 10 喷嘴、 1 1一供油孔、 12—连杆油孔、 1 3—裙部油孔、 14一衬套油孔、 15—衬 套润滑油道。 BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a front elevational view of the structure of the present invention. Figure 2 is a cross-sectional view taken along the line Α-Α of Figure 1. DESCRIPTION OF REFERENCE NUMERALS 1 piston head, 2 annular oil collecting groove, 3 - connecting rod bushing, 4 piston spring piece, 5 - piston bushing, 6 piston skirt, 7 - piston pin, 8 - oil inlet clearance, 9 connecting rod, 10 nozzle, 1 1 oil supply hole, 12 - connecting rod oil hole, 13 - skirt oil hole, 14 bushing oil hole, 15 - bushing lubricating oil passage.
具体实施方式 下面结合具体附图和实施例对本发明作进一步说明。 如图所示： 本发明涉及一种用于往复活塞式内燃机活塞连杆 9 的冷却润滑 结构， 所述连杆 9通过活塞销 7与活塞铰连， 活塞包括活塞裙部 6和活塞头部
1 ; 所述活塞裙部 6设有销孔， 所述连杆 9通过装在销孔内的活塞销 7与活塞裙 部 6铰连， 连杆 9与活塞销 7之间装有连杆衬套 3 , 活塞销 7与销孔之间装有 活塞衬套 5 ; 所述活塞裙部 6的内侧壁上设有裙部油孔 1 3 , 裙部油孔 1 3内设有 喷嘴 10; 所述活塞头部 1 内设有环形集油槽 2 , 环形集油槽 1的开口装有一个 环形的弹簧片 4 , 在弹簧片 4上开有进油空隙 8 , 进油空隙 8与所述的裙部油孔 1 3相对应； 所述环形集油槽 1的内壁上设有供油孔 1 1 , 环形集油槽 1通过供油 孔 1 1与连杆 9顶部的空间相连通； 所述连杆 9顶部设有连杆油孔 12 , 所述连 杆衬套 3上设有与连杆油孔 12对应连通的衬套油孔 14 , 连杆衬套 3内周壁上 设有半圈与衬套油孔 14在同一圓周上的衬套润滑油道 15。 如图 1、 图 2所示， 为控制连杆 9顶部空间的冷却润滑油进入量， 所述供油 孔 11的孔径优选设置在 Φ2-Φ6ηιηι之间。 为使得进入连杆 9顶部空间内的冷却 润滑油能顺利进入连杆衬套 3与活塞衬套 5内，所述供油孔 11的中心线与活塞 的中心轴线应设置成有一定的夹角 α, 该夹角 α优选在 60。_70。之间。 同时， 连 杆油孔 12的外端优选设置为锥形漏斗状。 具体应用时， 喷嘴 10将冷却润滑油通过裙部油孔 1 3和进油空隙 8喷入环 形集油槽 2内， 由于环形集油槽 2开口上的弹簧片 4具有一定的弹性， 活塞往 复运动时可以使喷入的冷却润滑油在环形集油槽 2 内震荡； 由于震荡作用， 约 有三分之一的冷却润滑油会通过供油孔 11进入连杆 9顶部的空间内，然后经由 连杆油孔 12和衬套油孔 14进入衬套润滑油道 15内， 对连杆衬套 3、 活塞衬套 5 以及活塞销 7进行润滑， 改善它们之间的冷却润滑条件， 减少它们相互转动 的摩擦阻力， 润滑效果好， 可保障活塞连杆 9长时间可靠运行。
DETAILED DESCRIPTION OF THE INVENTION The present invention will be further described below in conjunction with the specific drawings and embodiments. As shown: the present invention relates to a cooling lubrication structure for a piston rod 9 of a reciprocating piston type internal combustion engine, the connecting rod 9 being hinged to a piston by a piston pin 7, the piston including a piston skirt 6 and a piston head 1; the piston skirt 6 is provided with a pin hole, the connecting rod 9 is hinged with the piston skirt 6 through a piston pin 7 mounted in the pin hole, and a connecting rod lining is arranged between the connecting rod 9 and the piston pin 7. a sleeve 3 is disposed between the piston pin 7 and the pin hole; the inner side wall of the piston skirt 6 is provided with a skirt oil hole 13 3 , and a skirt 10 is provided in the skirt oil hole 13; The piston head 1 is provided with an annular oil collecting groove 2, and the opening of the annular oil collecting groove 1 is provided with an annular spring piece 4, and the spring piece 4 is provided with an oil inlet gap 8, an oil inlet gap 8 and the skirt portion. The oil hole 13 corresponds to the oil hole 1 1 , and the annular oil collecting groove 1 communicates with the space of the top of the connecting rod 9 through the oil supply hole 1 1; the top of the connecting rod 9 A connecting rod oil hole 12 is disposed, and the connecting rod bushing 3 is provided with a bushing oil hole 14 corresponding to the connecting rod oil hole 12, and a half ring and a bushing oil hole are arranged on the inner peripheral wall of the connecting rod bushing 3. 14 bushing lube channel 15 on the same circumference. As shown in FIG. 1 and FIG. 2, in order to control the amount of cooling lubricating oil entering the space of the connecting rod 9, the diameter of the oil supply hole 11 is preferably set between Φ2-Φ6ηιηι. In order to allow the cooling lubricating oil entering the head space of the connecting rod 9 to smoothly enter the connecting rod bushing 3 and the piston bushing 5, the center line of the oil supply hole 11 and the central axis of the piston should be set at a certain angle. α, the angle α is preferably 60. _70. between. At the same time, the outer end of the connecting rod oil hole 12 is preferably provided in a tapered funnel shape. In a specific application, the nozzle 10 sprays the cooling lubricating oil into the annular oil collecting groove 2 through the skirt oil hole 13 and the oil inlet gap 8. Since the spring piece 4 on the opening of the annular oil collecting groove 2 has a certain elasticity, the piston reciprocates. The injected cooling lubricating oil can be oscillated in the annular sump 2; about one-third of the cooling lubricating oil passes through the oil supply hole 11 into the space at the top of the connecting rod 9 due to the oscillating action, and then passes through the connecting rod oil. The hole 12 and the bushing oil hole 14 enter the bushing oil passage 15 to lubricate the connecting rod bushing 3, the piston bushing 5 and the piston pin 7, improve the cooling lubrication condition between them, and reduce the friction between them. The resistance and the lubricating effect are good, and the piston connecting rod 9 can be reliably operated for a long time.
Claims
1、 一种用于往复活塞式内燃机活塞连杆的冷却润滑结构， 连杆（9)通过 活塞销 （7) 与活塞铰连， 活塞包括活塞裙部 （6)和活塞头部 （1 ); 其特征在 于： 所述活塞裙部 ( 6 )设有销孔， 所述连杆（ 9 )通过装在销孔内的活塞销（ 7 ) 与活塞裙部（ 6 )铰连， 连杆（ 9 )与活塞销（ 7 )之间装有连杆衬套（ 3 ), 活塞 销 （7)与销孔之间装有活塞衬套（5); 所述活塞裙部 （6) 的内侧壁上设有裙 部油孔（ 13 ), 裙部油孔（ 13 ) 内设有喷嘴（ 10 ); 所述活塞头部（ 1 ) 内设有环 形集油槽（2), 环形集油槽（2)的开口装有一个环形的弹簧片 （4), 在弹簧片 1. A cooling and lubricating structure for a piston connecting rod of a reciprocating piston type internal combustion engine, wherein a connecting rod (9) is hinged to a piston by a piston pin (7), the piston comprising a piston skirt (6) and a piston head (1); The utility model is characterized in that: the piston skirt portion (6) is provided with a pin hole, and the connecting rod (9) is hinged with the piston skirt (6) through a piston pin (7) mounted in the pin hole, the connecting rod (9) a connecting rod bushing (3) is arranged between the piston pin (7), and a piston bushing (5) is arranged between the piston pin (7) and the pin hole; on the inner side wall of the piston skirt (6) a skirt oil hole (13) is provided, and a nozzle (10) is arranged in the skirt oil hole (13); the piston head (1) is provided with an annular oil collecting groove (2), and the annular oil collecting groove (2) The opening is fitted with an annular spring piece (4) in the spring piece
(4)上开有进油空隙 （8), 进油空隙 （8) 与所述的裙部油孔（13)相对应； 所述环形集油槽（2) 的内壁上设有供油孔（11 ), 环形集油槽（2)通过供油孔(4) an oil inlet gap (8) is opened, and an oil inlet gap (8) corresponds to the skirt oil hole (13); an oil supply hole is arranged on an inner wall of the annular oil collecting groove (2) ( 11), the annular oil collecting groove (2) passes through the oil supply hole
( 11 )与连杆（ 9 )顶部的空间相连通； 所述连杆（ 9 )顶部设有连杆油孔（ 12 ), 所述连杆衬套（3)上设有与连杆油孔（12)对应连通的衬套油孔（14), 连杆 衬套（ 3 )内周壁上设有半圈与衬套油孔（ 14 )在同一圓周上的衬套润滑油道（ 15 )。 (11) communicating with the space at the top of the connecting rod (9); the top of the connecting rod (9) is provided with a connecting rod oil hole (12), and the connecting rod bushing (3) is provided with an oil hole of the connecting rod (12) Corresponding to the bushing oil hole (14), the inner peripheral wall of the connecting rod bushing (3) is provided with a bushing lubricating oil passage (15) on the same circumference as the bushing oil hole (14).
2、 如权利要求 1所述的用于往复活塞式内燃机活塞连杆的冷却润滑结构， 其特征在于： 所述供油孔（11 ) 的孔径在 Φ2~Φ6πιπι之间。 2. The cooling lubrication structure for a piston rod of a reciprocating piston type internal combustion engine according to claim 1, wherein: the oil supply hole (11) has an aperture between Φ2 and Φ6πιπι.
3、 如权利要求 1所述的用于往复活塞式内燃机活塞连杆的冷却润滑结构， 其特征在于： 所述供油孔（11 )的中心线与活塞的中心轴线有一定的夹角 （α)。 3. The cooling lubrication structure for a piston rod of a reciprocating piston type internal combustion engine according to claim 1, wherein: a center line of said oil supply hole (11) has a certain angle with a central axis of the piston (α) ).
4、 如权利要求 3所述的用于往复活塞式内燃机活塞连杆的冷却润滑结构， 其特征在于：所述供油孔（ 11 )的中心线与活塞的中心轴线的夹角（α)在 60。~70。 之间。 4. The cooling lubrication structure for a piston rod of a reciprocating piston internal combustion engine according to claim 3, wherein an angle (α) between a center line of the oil supply hole (11) and a central axis of the piston is 60. ~70. between.
5、 如权利要求 1所述的用于往复活塞式内燃机活塞连杆的冷却润滑结构， 其特征在于： 所述连杆油孔（12) 的外端为锥形漏斗状。 5. The cooling lubrication structure for a piston rod of a reciprocating piston type internal combustion engine according to claim 1, wherein: the outer end of the connecting rod oil hole (12) has a tapered funnel shape.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110223167 CN102330584B (en) | 2011-08-05 | 2011-08-05 | Cooling lubricating structure used for piston connection rod of reciprocating piston internal combustion engine |
| CN201110223167.0 | 2011-08-05 |
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| Publication Number | Publication Date |
|---|---|
| WO2013020478A1 true WO2013020478A1 (en) | 2013-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2012/079592 WO2013020478A1 (en) | 2011-08-05 | 2012-08-02 | Cooling and lubricating structure for use on piston rod of reciprocating internal combustion engine |
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| Country | Link |
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| CN (1) | CN102330584B (en) |
| WO (1) | WO2013020478A1 (en) |
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| CN102330584B (en) * | 2011-08-05 | 2012-12-19 | 无锡开普动力有限公司 | Cooling lubricating structure used for piston connection rod of reciprocating piston internal combustion engine |
| CN103437899A (en) * | 2013-08-02 | 2013-12-11 | 大连滨城活塞制造有限公司 | Piston skirt with petal-shaped head structure |
| CN104153909A (en) * | 2014-08-28 | 2014-11-19 | 河南柴油机重工有限责任公司 | Intensive-cooling steel piston of gas engine |
| CN104265396A (en) * | 2014-09-08 | 2015-01-07 | 广西玉柴机器股份有限公司 | Connecting rod spray nozzle for throttling and accelerating |
| CN105156171B (en) * | 2015-08-18 | 2017-08-25 | 河南柴油机重工有限责任公司 | A kind of lubrication fabricated structure of engine piston connecting rod group |
| CN107152350A (en) * | 2017-06-09 | 2017-09-12 | 华晨汽车集团控股有限公司 | A kind of engine piston connecting rod assembly |
| CN109653895A (en) * | 2018-11-15 | 2019-04-19 | 北京理工大学 | A kind of device improving small end of connecting rod lubrication state |
| CN111207002A (en) * | 2018-11-22 | 2020-05-29 | 强莉莉 | Piston |
| CN109723566A (en) * | 2019-02-28 | 2019-05-07 | 一汽解放汽车有限公司 | A kind of link assembly reducing piston heat load |
| CN109799086B (en) * | 2019-03-21 | 2021-02-23 | 潍柴动力股份有限公司 | Connecting rod oil inlet oil collecting capacity testing arrangement |
| CN111102095B (en) * | 2019-12-20 | 2021-05-28 | 中国北方发动机研究所(天津) | Low heat dissipation composite structure piston |
| 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 |
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| CN102330584A (en) | 2012-01-25 |
| CN102330584B (en) | 2012-12-19 |
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