EP3365582A1 - Gicleur de graissage se montant de l'extérieur dans un carter - Google Patents
Gicleur de graissage se montant de l'extérieur dans un carterInfo
- Publication number
- EP3365582A1 EP3365582A1 EP16775312.8A EP16775312A EP3365582A1 EP 3365582 A1 EP3365582 A1 EP 3365582A1 EP 16775312 A EP16775312 A EP 16775312A EP 3365582 A1 EP3365582 A1 EP 3365582A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- rod
- housing
- wall
- chain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000001050 lubricating effect Effects 0.000 title abstract description 17
- 238000005461 lubrication Methods 0.000 claims abstract description 17
- 239000010687 lubricating oil Substances 0.000 claims description 23
- 239000003921 oil Substances 0.000 claims description 21
- 239000004519 grease Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 7
- 238000005553 drilling Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000003754 machining Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/05—Features relating to lubrication or cooling or heating of chains
-
- 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
- F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
- F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
- F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0456—Lubrication by injection; Injection nozzles or tubes therefor
Definitions
- the invention relates to a grease nozzle rising from the outside in a housing, this housing being advantageously a motor housing of a motor, preferably a four-stroke heat engine.
- timing chain has the advantage of an elongated life compared to a belt to be changed according to the mileage traveled or a predetermined life time in the case where the mileage traveled per year is weak, given the aging of the belt.
- a chain however requires regular lubrication.
- one or more lubricating nozzles are used which are connected to a source of lubricating oil advantageously under pressure.
- Lubrication nozzles are often made using a calibrated sleeve fitted into a cylinder block by the inner face of one of its walls. This socket has a calibrated hole, the oil coming from tunnels specially designed for the jet. Another solution is to screw a metal nozzle in one or plastic materials on an inner face of a housing wall.
- a fixed nozzle being force-fitted can only be arranged so as to grease the back of the chain. This is not optimal for reducing acoustic emissions and reducing chain wear since it does not provide optimum lubrication of the chain. In addition, it is sometimes necessary to provide galleries for the routing of the lubricating oil then under pressure.
- a grease fitting can lubricate the chain internally, but the chain is trapped.
- fitting in a well architecture with internal lubrication allows optimized lubrication but impossible disassembly of the chain while fitting into an architecture other than wells with internal lubrication allows a non-optimal lubrication but disassembly possible from the chain.
- EP-A-2 187 098 discloses a lubricating device for a belt-type continuous variation transmission, wherein a nozzle tube communicating with an oil supply source is disposed between a driving pulley and a driven pulley of the continuously variable transmission belt type.
- the source of lubricating oil is external to the housing housing the belt, this source can be an oil pump.
- the assembly or disassembly of the chain present in the housing can not be carried out without removing at least a portion of the housing and the nozzle tube is fixed inside the housing.
- the problem underlying the invention is, for a housing housing a chain to lubricate regularly and a source of internal oil to the housing, to provide a lubricating nozzle that can be mounted or removed from the housing. outside the casing in a simple way.
- a grease nozzle for a chain having a rod carrying at a first end an inlet for a lubricating oil, the rod comprising an internal channel s' extending parallel to the shank over at least a portion of the length of the shank, the channel having at least one outlet for the nozzle-forming oil opening laterally on the shank, characterized in that it bears on a second end opposite to the first a collar having a surface greater than the section of the stem, this collar, when the rod is inserted into a recess of a wall by passing through it completely, abutting against the wall.
- the technical effect is to obtain a nozzle that can be mounted in a chain well architecture, the nozzle being implanted in the housing with simple machining, without recourse to precise joints.
- the nozzle according to the invention can be disassembled and reassembled, for example during the replacement of the chain, this from the outer face of the wall that the nozzle rod passes through.
- Such a nozzle makes it possible to avoid rerouting the oil and to grease the chain internally on a "chain well" type architecture, while retaining the advantages of simplicity of mounting this architecture.
- the main advantage of the present invention is to allow disassembly in a well architecture with optimal lubrication.
- a nozzle of the state of the art hinders the disassembly of the chain and requires the removal of the housing, which does not require a grease nozzle according to the present invention. In fact, if it is the chain we are trying to disassemble we can disassemble the casing and the chain without necessarily remove the nozzle on the architectures not chain well, so with a side cover.
- the nozzle is in the form of a single piece.
- the flange is pierced with a bore for the passage of a fastener element on the wall introduced on the other side of the collar that the bearing the rod.
- the positioning of the fastener dictates the direction of the lubricating oil jet exiting the rod channel through the nozzle inside the engine.
- the fastening element is of the type screw, rivet, clip or technical equivalent.
- the invention also relates to a casing surrounding by walls at least one chain driven around at least two toothed gears, one of said at least two gears being a drive gear, the housing housing in its interior an oil gallery lubricating nozzle, characterized in that it comprises such a lubricating nozzle, the nozzle rod passing through a first of the walls by a recess forming a first passage and the flange returning in abutment against an outer face of the first wall once the rod having been introduced inside the housing, the first wall forming a support for the jet and the lubricating oil gallery inside the housing supplying the oil inlet of the lubricating nozzle.
- the nozzle is easily removable from the housing and this from the outside of the housing. This makes it possible to combine the advantages of using a chain well and the internal lubrication of the chain.
- the lubrication of the chain is done internally of the casing, which reduces the wear and the acoustic level of the rotation of the chain around the pinions. This lubrication can be performed at the optimum meshing point while maintaining the ability to disassemble and reassemble the elements internal to the housing via the chain well, these elements being for example guides, sprockets or chain, this without the Lubrication nozzle does not interfere because it was removed beforehand.
- a nozzle of the state of the art hinders the disassembly of the chain and requires the removal of the housing, which does not require to make a lubricating nozzle according to the present invention.
- this invention still allows the disassembly of the nozzle easily, the nozzle being removed from the housing by the wall opposite to that housing the lube oil gallery.
- the nozzle is simply disassembled, and can also simply disassemble the chain even with a sump chain well. If the jet was from the old state of the art with a chain sump, it would be complicated to disassemble and therefore the chain as well. Generally ; we do not touch the jet, but rather the rest of the elements (pinion, chain) if an intervention takes place. There is thus obtained an ease of disassembly of the distribution with the nozzle of the present invention. It must be considered that the disassembly of the jet is only a step, but rarely the purpose of disassembly of the front of the casing.
- said at least one nozzle outlet for the oil opening laterally on the rod is positioned in line with a point of engagement of a tooth of one of said at least two gears with the chain.
- the flow of lubricating oil is sufficient through the nozzle to grease the pinion, hence the interest of an orientation by the fastening mode of the fastener.
- the outer face of the first wall through which the nozzle rod has a blind housing for receiving the collar of a thickness substantially equivalent to that of the collar, the housing having a threaded hole for fixing the a fastening element passing through the collar.
- the lubricating oil gallery is housed inside a second wall of the housing, substantially facing the first wall, a portion of the first end of the penetrating jet rod. by a second passage in the second wall forming an auxiliary support of the nozzle relative to that made by the first wall.
- the housing is a motor housing of a motor.
- the invention finally relates to a method of mounting a lubricating nozzle in such a housing, comprising a step of drilling a first passage in a first wall of the housing passing through it from one side to another, a step of introduction from outside the housing of the nozzle rod into the housing until the collar of the nozzle reaches an abutment against an outer face of the first wall once the rod has been inserted into the housing and a step of fixing the flange against the outer face of the first wall.
- FIG. 1 is a diagrammatic representation of a front view of a casing into which a lubricating nozzle according to the present invention is introduced from the outside,
- FIG. 2 is a schematic representation of a sectional view of the interior of a housing in the plane containing the lubricating nozzle showing two opposite walls of the housing respectively provided with a passage for the shaft of the lubricating nozzle according to the present invention
- FIG. 3 is a diagrammatic representation of a sectional view of the interior of a housing showing the positioning of the oil outlet of the jet nozzle with respect to one of the drive sprockets of the chain inside the housing according to the present invention.
- the present invention relates first of all a nozzle 1 greasing for a chain 2.
- the nozzle 1 consists of a single piece, made for example by machining.
- the nozzle 1 comprises a rod 3 carrying at a first end 3a an inlet for a lubricating oil. This inlet is intended to be connected to a source of lubricating oil in a housing
- the pinions 11 may be double pinions 11 with at least two coaxial pinions 11 that can be associated with different chains 2.
- the rod 3 comprises an internal channel 5 extending parallel to the rod 3 on at least a portion of the length of the rod 3.
- the channel 5 comprises at least one outlet for the oil forming nozzle 6 laterally opening 3.
- the lubricating nozzle 1 carries on a second end 3b opposite the first 3a a flange 7.
- This flange 7 has a larger area than the section of the rod 3 and, when the rod 3 is introduced into a recess of a first wall 8 by passing through it entirely, this recess forming a first passage 13 for the rod 3 of the nozzle 1, the collar 7 abuts against an external face of the first wall 8.
- the flange 7 may be rectangular in shape with rounded edges or oval.
- the flange 7 can also be pierced right through a bore for the passage of a fastener 9 on the wall which has been traversed by the rod 3 of the nozzle 1.
- the fastening element 9 can be introduced on the other side of the flange 7 than the one carrying the rod 3.
- the bore and the second end 3b of the rod 3 can be positioned on the flange 7 symmetrically relative to the center of the flange 7 symmetrically with respect to the center of the flange 7.
- the rod 3 and the flange 7 may be of the same holding.
- the second end 3b of the rod 3 can be secured to the flange 7 by any fastening means, for example screw, rivet or clip.
- the rod 3 may be cylindrical or have a section other than cylindrical. This rod 3 is advantageously rectilinear by being in a casing 10 in a slightly inclined position relative to the horizontal for example with its first end 3a being higher than its second end 3b, so that the oil can flow better in the channel 5 to the outlet (s) respectively forming a nozzle 6.
- the rod 3 is bent in inclined or not, this in relation to the shape and outlet of a gallery 12 of lubricating oil in a housing 10, for example when the housing of the gallery 12 oil is not possible vis-à-vis the first wall 8 through which the rod 3.
- this is not preferred.
- the invention also relates to a housing 10 surrounding by walls 8, 8a at least one chain 2 driven around at least two toothed gears 1 1, one of said at least two pinions January 1 being a drive gear for the chain drive 2.
- the housing 10 can thus form a fully closed assembly around the chain 2 or chains 2 that it houses in its interior.
- the housing 10 houses inside a gallery 12 of lubricating oil, this gallery 12 of lubricating oil can lead to an outlet inside the housing 10.
- the gallery 12 oil can be housed inside a wall of the housing 10, in Figure 2 the second wall 8a.
- the casing 10 comprises a nozzle 1 of lubricating as previously described.
- the rod 3 of the nozzle 1, introduced from outside the housing 10, passes through a first 8 of the walls 8, 8a of the housing 10 by a recess forming a first passage 13.
- the flange 7 abuts against an outer face of the first wall 8 once the rod 3 of the nozzle 1 having been completely inserted inside the housing 10.
- This housing 10 is preferably a motor housing of a motor, preferably a motor vehicle engine, for example a four-stroke engine. It can, however, be used in a casing associated with an electric motor, the driving pinion being then driven by a generator.
- the housing 10 may be a chain well housing, that is to say a housing 10 having an opening for access to the distribution.
- the lubricating nozzle 1 can be fixed on the outer wall of the motor chain well and can be fed via the inner wall of the chain well.
- the first wall 8 then forms a support for the nozzle 1 and the gallery 12 of lubricating oil inside the housing 10 feeds the oil inlet of the lubricant nozzle 1 located at the first end 3a nozzle 1 farthest from the flange 7.
- Said at least one outlet forming a nozzle 6 for the oil by opening laterally on the rod 3 is positioned substantially in line with a point of engagement of a tooth 14 of one of said at least two toothed gears 1 1 with chain 2.
- the toothed pinion (s) 1 1 thus lubricated by the nozzle 1 may be 1 1 driving gears but this is not mandatory.
- the positioning of the nozzle or output 6 or not is predetermined so that the outlet or outputs are in line with the respective meshing point, once the nozzle 1 inserted into the housing 10 by its rod 3.
- This positioning the nozzle or outlet nozzle 6 is adapted to the morphology of the housing 10 and the positioning of the chain or chains 2 and their respective gear 1 1 toothed.
- this outer face may have a blind housing 15 for receiving the flange 7.
- the housing 15 has a thickness substantially equivalent to that of the collar 7 may be slightly higher.
- the housing 15 has a threaded hole for fixing a fastener 9 passing through the flange 7 so that the nozzle 1 is fixed against the first wall 8 and thus with respect to the casing 10 with its rod 3 positioned in the casing 10, the fixing being done from the outside of the housing 10 as well as the introduction of the rod 3 into the housing 10.
- the gallery 12 of lubricating oil can be housed inside a second wall 8a of the casing 10 of distribution.
- This second wall 8a can be located, substantially vis-à-vis the first wall 8, so that the rod 3 extends in an entire dimension of the housing 10. A portion of the first end 3a of the rod 3 of the nozzle 1 can then enter through a second passage 13a formed in the second wall 8a.
- the first and second passages 13 and 13a are, while being spaced on two opposite sides of the housing 10, preferably aligned horizontally or at a small angle relative to the horizontal, so that a rod 3 right can penetrate. This alignment may be inclined relative to the horizontal so that the lubricating oil can flow better into the internal channel. An alignment of the first and second passages 13a may also not be present, for example in the case mentioned above of a bent rod 3.
- Towards the end portions of the rod 3 of the nozzle 1, on the one hand, between a portion of the rod 3 of the nozzle 1 positioned inside the first wall 8 and the first passage 13 and, d on the other hand, between a portion of the first end 3a of the rod 3 of the nozzle 1 positioned inside the second wall 8a and the second passage 13a may be interposed sealing means of the respective seal type.
- it can be placed around the rod 3 a seal 17 to the end portion of the second end 3b and a seal 17 to the end portion of the first end 3a, these seals 17 sealing between the rod 3 and the first or second passage 13, 13a.
- the invention also relates to a method of mounting a nozzle 1 greasing in a housing 10 as previously described.
- the method comprises a step of drilling a first passage 13 in a first wall 8 of the housing 10 passing therethrough.
- the method may also include a prior drilling step of a second passage 13a in a second wall 8a of the casing 10 housing in its interior a gallery 12 of lubricating oil when it did not open inside the housing 10.
- the method according to the invention comprises a step of introduction from the outside of the housing 10 of the rod 3 of the nozzle 1 in the housing 10 until the flange 7 of the nozzle 1 comes into abutment against an outer face of the first wall 8 once the rod 3 having been introduced inside the housing 10.
- this step it is also possible that a portion of the first end 3a of the rod 3 carrying an oil inlet is inserted into the second passage 13a to arrive vis-à-vis an outlet of the gallery 12 of lubricating oil for the supply of the rod 3 and the nozzle 1 in oil.
- the method finally comprises a step of fixing the flange 7 against the outer face of the first wall 8, this collar 7 being in abutment against the outer face during the introduction of the rod 3 into the housing 10.
- the invention is not limited to the described and illustrated embodiments which have been given only as examples.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Details Of Gearings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1559922A FR3042570B1 (fr) | 2015-10-19 | 2015-10-19 | Gicleur de graissage se montant de l’exterieur dans un carter |
| PCT/FR2016/052311 WO2017068254A1 (fr) | 2015-10-19 | 2016-09-14 | Gicleur de graissage se montant de l'extérieur dans un carter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3365582A1 true EP3365582A1 (fr) | 2018-08-29 |
Family
ID=54848777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16775312.8A Withdrawn EP3365582A1 (fr) | 2015-10-19 | 2016-09-14 | Gicleur de graissage se montant de l'extérieur dans un carter |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3365582A1 (fr) |
| FR (1) | FR3042570B1 (fr) |
| WO (1) | WO2017068254A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3094403B1 (fr) * | 2019-04-01 | 2021-06-25 | Safran Trans Systems | Gicleur pour turbomachine comprenant une tête d’éjection à face oblique |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0723529Y2 (ja) * | 1988-11-16 | 1995-05-31 | 日産工機株式会社 | エンジンの潤滑装置 |
| DE10021220A1 (de) * | 2000-04-29 | 2001-10-31 | Porsche Ag | Brennkraftmaschine mit einem Kettentrieb |
| DE102004005797A1 (de) * | 2004-02-06 | 2006-05-04 | Daimlerchrysler Ag | Schmiervorrichtung für eine Steuerkette an einer Brennkraftmaschine |
| JP4271071B2 (ja) * | 2004-03-31 | 2009-06-03 | ジヤトコ株式会社 | 変速機の流路構造 |
-
2015
- 2015-10-19 FR FR1559922A patent/FR3042570B1/fr active Active
-
2016
- 2016-09-14 EP EP16775312.8A patent/EP3365582A1/fr not_active Withdrawn
- 2016-09-14 WO PCT/FR2016/052311 patent/WO2017068254A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FR3042570A1 (fr) | 2017-04-21 |
| WO2017068254A1 (fr) | 2017-04-27 |
| FR3042570B1 (fr) | 2017-11-24 |
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