EP2568171A2 - Pilon - Google Patents

Pilon Download PDF

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Publication number
EP2568171A2
EP2568171A2 EP12173506A EP12173506A EP2568171A2 EP 2568171 A2 EP2568171 A2 EP 2568171A2 EP 12173506 A EP12173506 A EP 12173506A EP 12173506 A EP12173506 A EP 12173506A EP 2568171 A2 EP2568171 A2 EP 2568171A2
Authority
EP
European Patent Office
Prior art keywords
housing
shell
ring
tappet according
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.)
Granted
Application number
EP12173506A
Other languages
German (de)
English (en)
Other versions
EP2568171A3 (fr
EP2568171B1 (fr
Inventor
Stefan Dorn
Norbert Geyer
Marco JUNKER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Priority to PL12173506T priority Critical patent/PL2568171T3/pl
Publication of EP2568171A2 publication Critical patent/EP2568171A2/fr
Publication of EP2568171A3 publication Critical patent/EP2568171A3/fr
Application granted granted Critical
Publication of EP2568171B1 publication Critical patent/EP2568171B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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, in particular for a high-pressure fuel pump, 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 is penetrated axially below the roller by a connected to the inner jacket bridge piece, one of on the output side facing the housing side facing at least indirectly serves as a plant for a follower part, wherein an upper side of the bridge piece has a cup-like indentation in which a separated from a ring, movable shell segment sitting on the inner race, the roller is slidably mounted and wherein the shell segment ausFEgeschreib in the indentation runs.
  • Such a plunger 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.
  • the object is therefore to provide a plunger of the aforementioned type, in which the identified disadvantages are eliminated.
  • the shell segment should run well secured against rotation in the molding and can be mounted safely and inexpensively.
  • this object is achieved in that at least one Axial arrangementsklale is arranged on the inner casing of the housing, on which the shell segment is arranged austipgeschreibt over a respective corner recess on a separation front. It is particularly preferred in this case that four Axial arrangementsklalen are distributed on the inner surface of the housing, where the shell segment is arranged secured against rotation on Eckaussparungen on the two Trennstirnen.
  • the shell segment can be mounted "accurately" and safely and also experiences on the axial guide columns an excellent anti-rotation, at the same time low desired mobility. Possibly. less than four pillars are also suitable, for example two diametrically opposite or only one pillar.
  • 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.
  • At least one Axial Equipmentsklale should protrude in a further development of the invention in one piece from the inner surface of the housing and in cross-section have a triangle-like tapered geometry.
  • this column can be easily formed in the preferably non-cutting production process of the housing.
  • the bridge piece should be an integral part of the housing.
  • subsequent assembly costs are minimized, with which assembly a negative dimensional influence of the plunger can occur.
  • 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.
  • the housing 2 is penetrated by a bridge piece 6, which starts in one piece from the inner shell 5.
  • 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)
EP12173506.2A 2011-09-09 2012-06-26 Pilon Active EP2568171B1 (fr)

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 true EP2568171A2 (fr) 2013-03-13
EP2568171A3 EP2568171A3 (fr) 2016-07-20
EP2568171B1 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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106988817A (zh) * 2015-11-24 2017-07-28 斯凯孚公司 具有垫圈的凸轮从动辊装置
CN114320729A (zh) * 2020-09-28 2022-04-12 大同金属工业株式会社 径向活塞设备的轴承装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015223571B4 (de) * 2015-11-27 2021-07-22 Vitesco Technologies GmbH Rollenstößel sowie Kraftstoffhochdruckpumpe
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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009056303A1 (de) 2009-11-30 2011-06-01 Schaeffler Technologies Gmbh & Co. Kg Rollenstößel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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
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
DE102009056305A1 (de) * 2009-11-30 2011-06-01 Schaeffler Technologies Gmbh & Co. Kg Rollenstößel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009056303A1 (de) 2009-11-30 2011-06-01 Schaeffler Technologies Gmbh & Co. Kg Rollenstößel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106988817A (zh) * 2015-11-24 2017-07-28 斯凯孚公司 具有垫圈的凸轮从动辊装置
CN114320729A (zh) * 2020-09-28 2022-04-12 大同金属工业株式会社 径向活塞设备的轴承装置
CN114320729B (zh) * 2020-09-28 2024-01-19 大同金属工业株式会社 径向活塞设备的轴承装置

Also Published As

Publication number Publication date
DE102011082434A1 (de) 2013-03-14
EP2568171A3 (fr) 2016-07-20
PL2568171T3 (pl) 2019-11-29
EP2568171B1 (fr) 2019-06-12

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