EP2568171B1 - Pilon - Google Patents
Pilon Download PDFInfo
- Publication number
- EP2568171B1 EP2568171B1 EP12173506.2A EP12173506A EP2568171B1 EP 2568171 B1 EP2568171 B1 EP 2568171B1 EP 12173506 A EP12173506 A EP 12173506A EP 2568171 B1 EP2568171 B1 EP 2568171B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shell
- housing
- bridge piece
- tappet
- segment
- 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.)
- Active
Links
- 239000000446 fuel Substances 0.000 claims description 7
- 238000005336 cracking Methods 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 230000000295 complement effect Effects 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 230000003628 erosive effect Effects 0.000 claims 1
- 238000003801 milling Methods 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000007373 indentation Methods 0.000 description 8
- 238000005461 lubrication Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 210000001061 forehead Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000001331 nose Anatomy 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0408—Pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0426—Arrangements for pressing the pistons against the actuated cam; Arrangements for connecting the pistons to the actuated cam
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0439—Supporting or guiding means for the pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
- F04B9/042—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being cams
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
- F04B9/045—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being eccentrics
Definitions
- the invention relates to a plunger for a high-pressure fuel pump or for a valve train of an internal combustion engine, with a housing which receives in the region of its drive-side end a role for a start of a periodic Huber Wegers, wherein the housing extends axially below the roller of a connected to the inner jacket bridge piece is, whose an output side end of the housing facing the underside at least indirectly serves as a plant for a follower part, wherein an upper side of the bridge piece has a shell-like indentation in which a detached from a ring, movable shell segment sits on the inner race, the roller is slidably mounted and the shell segment over the inner shell above the bridge piece outgoing protrusions secured against rotation in the indentation.
- the WO 2011/064044 A1 shows a generic plunger, here for a high-pressure fuel pump. It stands out that its bridge piece is a loose and separately mounted insert, on the specially shaped top of the shell piece is located. From an upper edge of the plunger protrude according to Figures 7, 8, starting from the outer shell, four notches toward the plunger interior. These serve, after a recognizable necessary assembly of the role of the shell segment and the bridge piece from below, as Verliertechnischs Kunststoffe for the role and the shell piece.
- Another pestle is from the DE 10 2009 056 303 A1 previously known. Its shell segment undergoes in the indentation of the bridge piece a Auswindsch by struck on the bridge piece lugs. It is clear that under appropriate load, the shell segment break through the resistance of the noses and thus can rotate out of the indentation. Furthermore, an "unfavorable" crack course during cracking, as not 100% predictable, has an influence on the ability to guide and hold.
- Task is therefore to provide a plunger, which is simple, easy to assemble and dimensionally tolerable.
- this object is achieved according to claim 1, characterized in that the bridge piece is integrally connected to the housing, wherein the inner shell of the housing exactly four integrally connected Axial Operationssklalen than the projections, axially extending to the bridge piece, project, in which the shell segment via this complementary Eckaussparungen is arranged austipgeschreibt at the two Trennstirnen.
- a plunger is created without the disadvantages mentioned above.
- the shell segment can be mounted "accurately" and safely and also experiences at the four up to the bridge piece extending and one-piece emanating from the housing Axial Operationssklalen an excellent anti-rotation, at the same desired low mobility. Possibly. less than four columns are also suitable, for example two diametrically opposed columns.
- the plunger also called roller tappet
- the plunger is intended to be used in particular in high-pressure pumps for fuel delivery of quality-controlled internal combustion engines (fuel lubrication).
- fuel lubrication quality-controlled internal combustion engines
- it is also conceivable and intended to be used in quantity-controlled internal combustion engines or as a classic, cam-following plunger in a valve train of an internal combustion engine.
- Huberzeuger serve a cam, an eccentric or a group thereof.
- a correspondingly blunt tool with axial force is applied to the front side of the ring, it being helpful here to arrange a notch, as stated in the claim, in the section of an axial end of the ring.
- the notch can be present as a corresponding indentation or as a laser notch or other targeted material weakening.
- a plunger 1 for a high-pressure fuel pump Shown is a plunger 1 for a high-pressure fuel pump.
- This has a cylindrical housing 2, which receives in the region of its drive-side end 3 a roller 4 for a start of a single or multiple cam. Axially below the roller 4, the housing 2 is penetrated by a bridge piece 6, which starts in one piece from the inner shell 5.
- One of a driven-side end 7 of the housing 2 facing bottom 8 of the bridge piece 6 serves as a plant for a ram succession part (here pump piston).
- An upper side 9 of the bridge piece 6 has a shell-like indentation 10, which consists of Fig. 2 is apparent. In this sits a separated from a ring 11, therein slightly movable held cup segment 12, on the inner race 13, the roller 4 is slidably mounted. A lubrication of this storage is carried out by fuel, with a separate oil lubrication is conceivable.
- the shell segment 12 extends secured against rotation in the indentation 10.
- the shell segment 12 goes from the inner shell 5 of the housing 2 four Axial arrangementsklalen 14 in one piece, where the shell segment 12 via Eckaussparungen 15 (see also Fig. 4 ) is arranged austipgeschreibt at the two Trennstirnen 16.
- the corner recesses 15 are partially complementary to the outer contour of the Axial arrangementsklalen 14th
- a significant chamfer 19 This is to be understood as meaning a chamfer which is larger than a standard or minimal chamfer for such a transitional region.
- Each shell segment 12 is obtained by cracking a ring 11 (see also FIG Fig. 3, 4 ).
- the ring 11 has hereafter three 3 Trennstirn Schemee 20.
- At both Axialstirnen 21 of the ring 11 is an end of its outer shell 22 outgoing semicircular recess 23 is applied for each separation end region 20 for the representation of two of the Eckaussparungen 15.
- In each recess 23 opens a running at the axial end 21 notch 24th
- a correspondingly blunt tool is brought axially onto the notch 24.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Details Of Reciprocating Pumps (AREA)
Claims (5)
- Poussoir (1) pour une pompe à carburant haute pression ou une commande de soupapes d'un moteur à combustion interne, avec un boîtier (2), qui contient dans la région de sa face frontale côté entraînement (3) un rouleau (4) pour un démarrage d'un générateur de course périodique, dans lequel le boîtier (2) est traversé axialement en dessous du rouleau (4) par une pièce de pontage (6) reliée à sa surface latérale intérieure (5), et dont le côté inférieur (8) tourné vers une face frontale côté sortie (7) du boîtier (2) sert au moins indirectement d'appui pour une pièce de suivi de poussoir, dans lequel un côté supérieur (9) de la pièce de pontage (6) présente un enfoncement en forme de coquille (10), dans lequel se place un segment de coquille mobile (12) séparé d'un anneau (11), sur la piste intérieure (13) duquel le rouleau (4) est supporté de façon glissante et dans lequel le segment de coquille (12) s'étend dans l'enfoncement (10) en étant calé contre la rotation par des saillies sortant de la surface latérale intérieure (5) au-dessus de la pièce de pontage (6), caractérisé en ce que la pièce de pontage (6) est reliée d'une seule pièce au boîtier (2), dans lequel exactement quatre colonnes de guidage axiales (14) assemblées d'une pièce pénètrent à partir de la surface latérale intérieure (5) du boîtier (2) en tant que saillies, en s'étendant axialement jusqu'à la pièce de pontage (6), sur lesquelles le segment de coquille (12) est disposé de façon calée en rotation par des découpes d'angle (15) complémentaires à celles-ci sur ses deux faces frontales de séparation (16).
- Poussoir selon la revendication 1, caractérisé en ce qu'une région de bord (17) du segment de coquille (12) est muni d'un chanfrein net (19) à partir de son segment frontal axial respectif (18) au moins vers la piste intérieure (13).
- Poussoir selon la revendication 1, caractérisé en ce que les colonnes de guidage axiales (14) se terminent en pointe en direction d'une ligne axiale du poussoir (1).
- Poussoir selon la revendication 1, caractérisé en ce que le segment de coquille (18) est une moitié, un tiers ou un quart de coquille et est séparé d'une bague de palier à roulement en tant qu'anneau (11) par craquage, sciage, érosion ou fraisage.
- Poussoir selon la revendication 1, caractérisé en ce que le boîtier (2) se présente sous la forme d'une pièce en tôle d'acier ou d'une pièce extrudée.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL12173506T PL2568171T3 (pl) | 2011-09-09 | 2012-06-26 | Popychacz |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011082434A DE102011082434A1 (de) | 2011-09-09 | 2011-09-09 | Stößel |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2568171A2 EP2568171A2 (fr) | 2013-03-13 |
EP2568171A3 EP2568171A3 (fr) | 2016-07-20 |
EP2568171B1 true EP2568171B1 (fr) | 2019-06-12 |
Family
ID=46419923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12173506.2A Active EP2568171B1 (fr) | 2011-09-09 | 2012-06-26 | Pilon |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2568171B1 (fr) |
DE (1) | DE102011082434A1 (fr) |
PL (1) | PL2568171T3 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3173590B1 (fr) * | 2015-11-24 | 2018-06-20 | Aktiebolaget SKF | Dispositif de galet de came avec rondelle |
DE102015223571B4 (de) * | 2015-11-27 | 2021-07-22 | Vitesco Technologies GmbH | Rollenstößel sowie Kraftstoffhochdruckpumpe |
JP7068410B2 (ja) * | 2020-09-28 | 2022-05-16 | 大同メタル工業株式会社 | ラジアルピストン機械の軸受装置 |
JP7167108B2 (ja) * | 2020-09-28 | 2022-11-08 | 大同メタル工業株式会社 | ラジアルピストン機械の軸受装置 |
CN113898585B (zh) * | 2021-10-26 | 2023-08-04 | 浙江象睿机电设备有限公司 | 一种空气压缩机的能耗智能控制装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7793583B2 (en) * | 2006-12-06 | 2010-09-14 | Schaeffler Kg | Mechanical tappet in particular for a fuel pump of an internal combustion engine |
DE102009056303A1 (de) | 2009-11-30 | 2011-06-01 | Schaeffler Technologies Gmbh & Co. Kg | Rollenstößel |
DE102009056305A1 (de) * | 2009-11-30 | 2011-06-01 | Schaeffler Technologies Gmbh & Co. Kg | Rollenstößel |
DE102009056304A1 (de) * | 2009-11-30 | 2011-06-01 | Schaeffler Technologies Gmbh & Co. Kg | Rollenstößel |
DE102009056306A1 (de) * | 2009-11-30 | 2011-06-01 | Schaeffler Technologies Gmbh & Co. Kg | Rollenstößel |
-
2011
- 2011-09-09 DE DE102011082434A patent/DE102011082434A1/de not_active Withdrawn
-
2012
- 2012-06-26 EP EP12173506.2A patent/EP2568171B1/fr active Active
- 2012-06-26 PL PL12173506T patent/PL2568171T3/pl unknown
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
EP2568171A3 (fr) | 2016-07-20 |
DE102011082434A1 (de) | 2013-03-14 |
EP2568171A2 (fr) | 2013-03-13 |
PL2568171T3 (pl) | 2019-11-29 |
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