WO2016009033A1 - Pleuel sowie baueinheit aus einem kolben und einem pleuel - Google Patents
Pleuel sowie baueinheit aus einem kolben und einem pleuel Download PDFInfo
- Publication number
- WO2016009033A1 WO2016009033A1 PCT/EP2015/066381 EP2015066381W WO2016009033A1 WO 2016009033 A1 WO2016009033 A1 WO 2016009033A1 EP 2015066381 W EP2015066381 W EP 2015066381W WO 2016009033 A1 WO2016009033 A1 WO 2016009033A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- connecting rod
- pin bore
- central axis
- piston
- extending
- Prior art date
Links
Classifications
-
- 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
- F01P3/08—Cooling of piston exterior only, e.g. by jets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
- F16C7/02—Constructions of connecting-rods with constant length
- F16C7/023—Constructions of connecting-rods with constant length for piston engines, pumps or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
- F16C9/04—Connecting-rod bearings; Attachments thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/09—Pistons; Trunk pistons; Plungers with means for guiding fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/10—Connection to driving members
- F16J1/14—Connection to driving members with connecting-rods, i.e. pivotal connections
- F16J1/16—Connection to driving members with connecting-rods, i.e. pivotal connections with gudgeon-pin; Gudgeon-pins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J7/00—Piston-rods
Definitions
- the present invention relates to a connecting rod for an internal combustion engine, with a connecting rod shaft, a large connecting rod eye and a small connecting rod eye with a pin bore.
- the present invention further relates to an assembly of a piston and a connecting rod for an internal combustion engine, which is assigned to a Anspritzdüse, the piston having a piston shaft with hub holes, the connecting rod having a connecting rod shaft, a large connecting rod eye and a small connecting rod eye with a pin hole, wherein the small connecting rod is mounted in the piston interior by means of a recorded in the pin bores and the Bol ⁇ zenbohrung piston pin.
- the cooling of highly stressed pistons, in particular of pistons made of an aluminum material, with cooling oil is generally carried out by spraying the underside of the piston crown with ⁇ means of a Anspritzdüse.
- This measure is essential for limiting the piston temperature in the region of the piston head during engine operation and thus for the life of the piston. Since usually only one Anspritzdüse is provided for each piston, to ensure the most uniform cooling effect, it must be ensured that the cooling oil is as completely as possible between the end of the small connecting rod and the underside of the piston head on the side facing away from the nozzle spigot ,
- the object of the present invention is to develop a generic assembly of a piston and a connecting rod so that the cooling oil is reliably directed into the area between the end of the small connecting rod and the Un ⁇ terseite of the piston head, so that the piston in the region of the piston head is effectively cooled.
- the end face of the small connecting rod has over its entire width transversely to the central axis of the pin bore at least one parallel to the central axis of the pin bore extending overhang, on which a parallel to the central axis of the pin bore extending edge is formed.
- the subject of the present patent application is also an assembly of a piston and a connecting rod, in which the end face of the small connecting rod at least on its side facing the Anspritzdüse over its entire width transverse to the central axis of the pin bore has a parallel to the central axis of the pin bore extending overhang, on the a parallel to the central axis of the pin bore durau ⁇ fenden edge is formed.
- the idea according to the invention therefore consists in designing the shape of the connecting rod instead of the piston crown such that in the unit according to the invention, the cooling oil is directed into the region between the end face of the small connecting rod and the Un ⁇ terseite of the piston crown.
- the modification of the connecting rod is technically much easier to implement than the modification of the underside of the piston crown, insbeson ⁇ particular in forged pistons.
- two opposing, parallel to the central axis of the pin bore extending overhangs are ⁇ seen, on which parallel to the central axis of the pin bore extending edges formed.
- the end face of the connecting rod on both sides of the central axis of the bolt ⁇ bore widened so that the cooling oil in the erfindungsge ⁇ MAESSEN assembly particularly long in the area between the end face of the small connecting rod and the underside of the piston head held and the cooling effect is thus enhanced.
- the small connecting rod comprises at least one UNMIT ⁇ telbar below an edge extending parallel to the pin bore concave curvature over its entire width to collect cooling oil and particularly reliably in the region between the end face of the small connecting rod and the underside of the piston crown to steer .
- the concave curvature is arranged in the fiction, ⁇ modern assembly on that side of the small Pleuelau ⁇ ges, which is associated with a Anspritzdüse.
- the small connecting-rod eye it is advantageous for the small connecting-rod eye to have two concave curvatures extending over both sides of its width, just below the edges parallel to the pin bore.
- the end face of the small connecting-rod eye may have a bore for the supply of cooling oil to the pin bore and / or a trough-shaped recess for the temporary storage of cooling oil in the region between the end face of the small connecting-rod eye and the underside of the piston crown.
- the bore is formed within the recess to supply the Bol ⁇ zenbohrung with a sufficient amount of cooling oil for lubrication.
- a further preferred development is that a transversely to the central ⁇ axis of the pin bore extending, symmetrically or asymmetrically arranged to the central axis recess is provided on the end face of the small connecting rod, which also serves the temporary storage of cooling oil. If the recess has an opening for the supply of cooling oil to the pin bore, additional lubrication can take place on the piston pin.
- the piston has a piston bottom with a contoured underside
- the Kon ⁇ tur the end face of the small connecting rod of the contour of the underside of the piston crown is adapted to unehin ⁇ changed cooling oil flow in the region between the end of the small connecting rod and to ensure the underside of the piston crown.
- a further advantageous embodiment of the present invention is that the distance between the subordinate side of the piston head and the end face of the small Pleu ⁇ elauges on that edge which is remote from the Anspritzdüse is smaller than at the edge, which is the Anspritzdüse supplied ⁇ Wandt.
- Figure 1 shows a first embodiment of an inventive ⁇ Shen assembly of a piston and a connecting rod in section
- Figure 2 shows another embodiment of a erfindungsge ⁇ MAESSEN assembly of a piston and a connecting rod according to the invention in section;
- Figure 3 shows another embodiment of a erfindungsge ⁇ MAESSEN assembly of a piston and a connecting rod according to the invention in section;
- FIG. 4 shows the connecting rod according to FIG. 1 in a side view
- Figure 5 shows another embodiment of a erfindungsge ⁇ MAESSEN connecting rod in a front view partially in section;
- FIG. 6 shows a partial section along the line VI-VI in FIG. 5.
- Figures 1 and 4 show a first embodiment ei ⁇ ner assembly according to the invention 10 of a piston 20 with Anspritzkühlung and a connecting rod 30 (Figure 1) or a first embodiment of a connecting rod 30 according to the invention ( Figure 4).
- the piston 20 is exemplified as a one-piece piston Darge ⁇ provides.
- the piston 20 has a piston head 21 with an ei ⁇ ne combustion bowl 23 and a bottom 22a having a piston head 22, a circumferential land 24 and a circumferential ring portion 25 with annular grooves for receiving Kol ⁇ benringen (not shown).
- a circumferential cooling channel 26 is seen ⁇ in the embodiment.
- the cooling channel 26 does not necessarily have to be provided in the case of a piston with injection cooling.
- the piston 20 also has, in a manner known per se, a piston shaft 27 with hub bores having piston hubs (not shown).
- the connecting rod 30 has, in a manner known per se, a connecting rod shaft 31, a large connecting rod eye 32 (cf., FIG. 4) and a small connecting rod eye 33 with a pin bore 34.
- the small connecting rod eye 33 is mounted in the assembly 10 in a be ⁇ known manner in the piston interior 28 by a piston pin 29 is guided through the hub bores of the piston 20 and the pin bore 34 of the small connecting rod 33.
- the end face 35 of the small connecting-rod eye 33 has in the exemplary embodiment two overhangs 36, 37.
- the overhangs 36, 37 are arranged opposite one another transverse to the with ⁇ center axis B of the pin bore 34 and extend according to the invention over the entire width b of the small Pleuelau ⁇ ges 33 parallel to the central axis B.
- the overhangs 36, 37 are formed in cross-section so that their free ends in the off ⁇ operation example rounded edges 38, 39 form the give ⁇ if over the entire width b of the small connecting rod 33 extend parallel to the central axis B ( Figure 4).
- concave bulges 41, 42 are formed, which also extend over the entire width b of the small connecting rod 33 parallel to the central axis B.
- the overhang 37 or the edge 39 or the curvature 42 is associated with a Anspritzdüse 50 for cooling oil in the internal combustion engine, where the cooling oil flow is indicated by arrows.
- the end face 35 of the small connecting rod eye with the overhangs 36, 37 preferably has a contour which is adapted to the contour of the underside 22 a of the piston crown 22.
- the distance between the end face 35 and the bottom 22a is so- ⁇ chooses that the freedom of movement of the connecting rod 30 is ensured in the piston in ⁇ nenraum 28th
- dashed interpreted to ⁇ that the distance between the end face 35 and the bottom 22a in the region of the Anspritzdüse 50 submit ⁇ facing overhang 36 is less than in the area of the Anspritzdüse 50 facing the overhang 37.
- the concave curvature 42 causes the fanned cooling oil jet emerging from the injection nozzle to be caught, accelerated and around the edge 39 of the area Overhang 37 is directed into the region between the end face 35 of the small connecting rod 33 and the bottom 22 a of the Kolbenbo ⁇ dens 22.
- FIG. 2 shows a further embodiment of an assembly 110 according OF INVENTION ⁇ dung, which are provided with the principalsbei ⁇ game according to Figure 1, identical structures with the same reference numbers and Be ⁇ reference is made to the description of FIG. 1
- the connecting rod 130 has at its end face 35 a trough-shaped Vertie ⁇ Fung 144, which serves for collecting cooling oil, wel ⁇ ches is thereby prevented over a certain period from flowing so that the Cooling effect is enhanced in this area.
- This recess 144 may also, as shown in phantom in FIG. 2, be formed asymmetrically with respect to the center axis B of the pin bore 34.
- the recess 144 is expediently oriented toward that side of the small connecting-rod eye 34 which is arranged facing away from the injection nozzle 50. It is thereby achieved that the pivoting movement of the connecting rod 31, these in Motorbe ⁇ drifted around the central axis B of the pin bore 34 runs, the transport of cooling oil in the direction of the overhang 38, ie to that of the Anspritzdüse 50 opposite side of the smal ⁇ elauges 33 hin, supported.
- FIG. 3 shows a further embodiment of an assembly according OF INVENTION ⁇ 210 dung, which are provided with the principalsbei ⁇ game according to Figure 1, identical structures with the same reference numbers and Be ⁇ reference is made to the description of FIG. 1
- the Connecting rod 230 has a trough-shaped Vertie ⁇ Fung 244 at its end face 35, which serves for collecting cooling oil, wel ⁇ ches is thereby prevented from flowing over a certain period, so that the cooling effect is increased in this area.
- a bore 245 is provided, through which cooling oil in the Bol ⁇ zenbohrung 34 is passed, where it serves as a lubricant.
- the connecting rod 230 has no concave curvatures, as shown in FIG. Instead, planar FLAE ⁇ surfaces 241 and 242 are provided.
- FIGS. 5 and 6 show a further exemplary embodiment of a connecting rod 330 which, with a piston 20, forms a structural unit 10, 110, 210 corresponding to FIGS. 1 to 3.
- a transverse to the central axis B of the pin bore 34 extending recess 346 is provided.
- the recess 346 is arranged asymmetrically to the central axis B of the pin bore 34 in the embodiment.
- the recess 346 is orientated suitably to the side of the small connecting rod 34 out in the corresponding assembly of a piston 20 and the connecting rod 330 of the Anspritzdüse 50 facing away angeord ⁇ net is.
- the recess 346 also extends over the entire overhang 36, which is assigned facing away from the injection nozzle 50 in the corresponding structural unit. This ensures that the pivoting movement of the connecting rod 31, which executes these in motor operation about the central axis B of the pin bore 34, the transport of cooling oil in the direction of over ⁇ hang 38, ie to the Anspritzdüse 50 opposite side of the small connecting rod 33 out, supported.
- the recess 346 has in the exemplary embodiment an opening 347 for the transport of cooling oil to the pin bore 34. This will additionally improves the lubrication between the piston pin 29 and the small connecting rod 33 in the corresponding unit.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201580038055.4A CN106661996B (zh) | 2014-07-18 | 2015-07-17 | 连杆以及包括活塞和连杆的组件 |
BR112017000628A BR112017000628A2 (pt) | 2014-07-18 | 2015-07-17 | tirante de conexão e conjunto que compreende pistão e tirante de conexão |
US15/327,029 US10294848B2 (en) | 2014-07-18 | 2015-07-17 | Connecting rod and assembly comprising a piston and a connecting rod |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014010528.8A DE102014010528A1 (de) | 2014-07-18 | 2014-07-18 | Pleuel sowie Baueinheit aus einem Kolben und einem Pleuel |
DE102014010528.8 | 2014-07-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016009033A1 true WO2016009033A1 (de) | 2016-01-21 |
Family
ID=53717993
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2015/066381 WO2016009033A1 (de) | 2014-07-18 | 2015-07-17 | Pleuel sowie baueinheit aus einem kolben und einem pleuel |
Country Status (5)
Country | Link |
---|---|
US (1) | US10294848B2 (de) |
CN (1) | CN106661996B (de) |
BR (1) | BR112017000628A2 (de) |
DE (1) | DE102014010528A1 (de) |
WO (1) | WO2016009033A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101793228B1 (ko) * | 2017-07-14 | 2017-11-02 | 주식회사 코쿤디자인 | 이미지 교체가 가능한 기능성 광고 장치 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0586973A (ja) * | 1991-09-27 | 1993-04-06 | Bandou Kiko Kk | エンジン |
JPH0618620U (ja) * | 1991-11-22 | 1994-03-11 | 日産自動車株式会社 | 内燃機関のピストン冷却装置 |
CN203412663U (zh) * | 2013-07-12 | 2014-01-29 | 林卓云 | 柴油机耐爆压结构 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB122602A (en) * | 1918-09-06 | 1919-01-30 | Noel Evelyn Dufty | Improvements in and relating to the Lubrication of Engine Gudgeon Pins and Pistons. |
DE742696C (de) * | 1942-09-23 | 1943-12-09 | Kloeckner Humboldt Deutz Ag | Fluessigkeitsgekuehlter Kolben, insbesondere fuer Brennkraftmaschinen |
DE1119601B (de) * | 1957-01-15 | 1961-12-14 | Karl Schmidt Ges Mit Beschraen | Vorrichtung zum Kuehlen von Leichtmetallkolben fuer Brennkraftmaschinen |
FR1246795A (fr) * | 1959-09-29 | 1960-10-17 | Ile D Etudes Marep Grosshans O | Perfectionnements apportés aux ensembles formés par un piston comportant un circuit de refroidissement intérieur et par une bielle |
DE2543478C2 (de) | 1975-09-30 | 1983-01-05 | Günter 8543 Hilpoltstein Elsbett | Kolben für Brennkraftmaschinen, insb. Dieselmotoren |
DE3543109C1 (en) * | 1985-12-06 | 1987-06-25 | Daimler Benz Ag | Piston/connecting rod arrangement |
GB2261717A (en) | 1991-11-22 | 1993-05-26 | Ford Motor Co | Piston cooling |
TW253097B (de) | 1992-03-02 | 1995-08-01 | At & T Corp | |
US6209510B1 (en) * | 1998-07-28 | 2001-04-03 | Teledyne Technologies Incorporated | Piston and connecting rod assembly |
CN2425231Y (zh) | 2000-04-24 | 2001-03-28 | 南通柴油机股份有限公司 | 柴油机新型连杆 |
JP2006077931A (ja) * | 2004-09-10 | 2006-03-23 | Toyota Motor Corp | 内燃機関のコネクティングロッド |
CN201330792Y (zh) | 2008-10-31 | 2009-10-21 | 重庆建设摩托车股份有限公司 | 汽油发动机的连杆 |
ITMO20110254A1 (it) * | 2011-09-30 | 2013-03-31 | Giorgio Adriano Casolari | Pistone e biella perfezionata per motori a combustione interna |
JP2013181447A (ja) | 2012-03-01 | 2013-09-12 | Honda Motor Co Ltd | ピストンの潤滑装置 |
DE102012017217A1 (de) | 2012-08-31 | 2014-05-15 | Mahle International Gmbh | Kolben für einen Verbrennungsmotor |
DE102013013962A1 (de) | 2013-08-23 | 2015-02-26 | Mahle International Gmbh | Baueinheit aus einem Kolben und einer Anspritzdüse für einen Verbrennungsmotor |
DE102014005364A1 (de) | 2014-04-11 | 2015-10-29 | Mahle International Gmbh | Baueinheit aus einem Kolben und einer Ölspritzdüse für einen Verbrennungsmotor |
-
2014
- 2014-07-18 DE DE102014010528.8A patent/DE102014010528A1/de not_active Withdrawn
-
2015
- 2015-07-17 BR BR112017000628A patent/BR112017000628A2/pt not_active Application Discontinuation
- 2015-07-17 US US15/327,029 patent/US10294848B2/en not_active Expired - Fee Related
- 2015-07-17 WO PCT/EP2015/066381 patent/WO2016009033A1/de active Application Filing
- 2015-07-17 CN CN201580038055.4A patent/CN106661996B/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0586973A (ja) * | 1991-09-27 | 1993-04-06 | Bandou Kiko Kk | エンジン |
JPH0618620U (ja) * | 1991-11-22 | 1994-03-11 | 日産自動車株式会社 | 内燃機関のピストン冷却装置 |
CN203412663U (zh) * | 2013-07-12 | 2014-01-29 | 林卓云 | 柴油机耐爆压结构 |
Also Published As
Publication number | Publication date |
---|---|
BR112017000628A2 (pt) | 2017-11-14 |
CN106661996B (zh) | 2019-05-21 |
CN106661996A (zh) | 2017-05-10 |
US20170198625A1 (en) | 2017-07-13 |
DE102014010528A1 (de) | 2016-02-18 |
US10294848B2 (en) | 2019-05-21 |
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