WO2014048421A1 - Procédé de montage d'un poussoir - Google Patents

Procédé de montage d'un poussoir Download PDF

Info

Publication number
WO2014048421A1
WO2014048421A1 PCT/DE2013/200040 DE2013200040W WO2014048421A1 WO 2014048421 A1 WO2014048421 A1 WO 2014048421A1 DE 2013200040 W DE2013200040 W DE 2013200040W WO 2014048421 A1 WO2014048421 A1 WO 2014048421A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
bridge piece
nose
plunger
side annular
Prior art date
Application number
PCT/DE2013/200040
Other languages
German (de)
English (en)
Inventor
Norbert Geyer
Stefan Dorn
Original Assignee
Schaeffler Technologies AG & 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 & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Priority to CN201380049877.3A priority Critical patent/CN104662291B/zh
Priority to EP13752809.7A priority patent/EP2901013A1/fr
Publication of WO2014048421A1 publication Critical patent/WO2014048421A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F01L1/143—Tappets; Push rods for use with overhead camshafts
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/22—Arrangements for enabling ready assembly or disassembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2305/00—Valve arrangements comprising rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2305/00—Valve arrangements comprising rollers
    • F01L2305/02—Mounting of rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2307/00—Preventing the rotation of tappets

Definitions

  • the invention relates to a method for assembling a ram, in particular a ram for a pump or a compressor, which ram has a tubular piece-like housing, in whose drive-side annular end a roller-bearing bolt is mounted, wherein an inner jacket of the Housing axially below the roller is penetrated by a separate bridge piece, the lower, on one side of a driven side annular end of the housing lying end acts as a plant for a ram follower part, wherein the bridge piece held in the direction of the drive-side annular end to a projecting from the inner shell plant and with a provided by its outer shell protruding nose, which nose is guided by a window of the housing as Verwoodeêt-.
  • DE 10 2010 022 318 A1 discloses a plunger for acting on a pump piston of a high-pressure fuel pump of an internal combustion engine with a comparatively thin, disk-like bridge piece. This is no longer able to cope with the high loads of today's high-pressure fuel pumps.
  • a significantly thicker designed and internally guided disc-like bridge piece with nose to prevent rotation would not be easy to assemble by tipping and also increase the ram mass unnecessarily.
  • the bridge piece which almost radially fills the ram, permits only a comparatively poor passage of the medium, for example of diesel oil when the ram is used in a high-pressure fuel pump of a quality-controlled internal combustion engine.
  • the bridge piece should be easy to assemble even at high thickness.
  • this object is achieved in that the designed as a thick-walled longitudinal beam bridge piece and the nose are provided as separate components, one of which is first supplied to the plunger and held there in its end position or endlagennah, then the components are brought together in the plunger.
  • the bridge piece is not tilted during its mounting on the inner casing of the housing, therefore introduced at least almost orthogonal to the ram axis and there paired with the separately executed nose as rotation for the housing.
  • the window for the nose can be present separately. However, it can also lie in the region of a lower or longitudinal side of a flank engaged by the outer casing of the housing, in which plane a bore for supporting the bolt of the roller is provided.
  • the recess in the cross-piece of the bridge piece is represented as a straight slot, whose side walls are thus parallel. lel to the longitudinal center plane of the bridge piece.
  • it is also a positive profile as a dovetail, trapezoidal, Kehl-, or sack profile in question, in which case the bridge piece can be supplied only after the window installation of the nose.
  • a snap or clip connection can be provided.
  • the nose can be held in the recess or in its window by the joining method according to the invention with a press or shrink fit. This can also be followed by subsequent welding, soldering, caulking or the like. It is also conceivable, however, a "loose" connection, but should be at least largely free of play.
  • a kidney-like passage for lubricant such as oil or diesel fuel is formed between its longitudinal walls and the adjacent inner casing of the housing.
  • an air passage can also be made indirectly to the outside, so that "pumping up" is avoided.
  • the proposed thick-walled bridge piece can be punched from a board or cut / hooked from an extruded profile or made of cast material.
  • the bridge piece can run slightly axially and radially play in the housing, so that a simple tolerance compensation is given. However, it is also intended to hold this immobile in the housing.
  • the assembled plunger is to be used for at least indirectly acting on a pump piston of a fuel injection pump of a quality or quantity controlled internal combustion engine use. Likewise, use in a valve train of an internal combustion engine or in an axial or radial piston compressor or a respective pump is considered.
  • Figure 2 shows a view as aforesaid, wherein the nose intersects an underside of a flax for receiving the roller bolt;
  • Figure 3 shows a longitudinal section through the plunger of Figure 1;
  • FIG. 4 shows a cross section through the aforementioned plunger at the level of its crossbeam;
  • Figure 5 shows in detail the crossbar with a symmetrical trapezoid similar widening recess and mounted nose and
  • Figure 6 shows the detail as before, but with crossbeam and straight slot recess.
  • a ram 1 for a high-pressure fuel pump forth This has a tube-like housing 2 made of sheet steel.
  • a drive-side annular end 3 of the housing 2 two flanges 5 engaged by an outer jacket 4 of the housing 2 lie diametrically opposite each other.
  • a bolt 7 is received, on which a needle-bearing roller 6 extends, which serves for a start of a cam or eccentric.
  • An inner jacket 8 of the housing 2 is projected axially below the roller 6 from a bridge piece 9 present as a thick-walled longitudinal beam.
  • a bridge piece 9 present as a thick-walled longitudinal beam.
  • the bridge piece 9 is located, as best seen in FIG. 3, in the direction of the drive-side annular end 3 of the housing 2 on a system 17, more precisely on arcuate chord-like housing 2 intersecting undersides 18 of the indented flax 5.
  • a in a output side annular end 1 1 of the housing 2 lying end 10 of the bridge piece 9 serves as a plant for a follower part (pump piston).
  • transverse spikes 15 of the thick-walled bridge piece 9 run directly on the inner jacket 8 of the housing 2 and are shown with almost the same radius.
  • a recess 16 of the bridge piece 9 for receiving a radially inner portion of the nose 13 at one cross-member 15 is shown in Figures 4, 5 slightly trapezoidal, extending in the beam direction widening.
  • the recess 16 of the bridge piece 9 may also be shown with parallel walls, so that there is a simple longitudinal slot, with which the nose 13 is joined.
  • the bridge piece 9 For mounting the bridge piece 9 with nose 13: Insofar as it is a bridge piece 9 with the trapezoidal recess 16 for the nose 13 of Figures 4, 5, the nose 13 is first inserted into the window 14, such that the nose 13 projects beyond the housing 2 on both sides radially. Subsequently, the bridge piece 9 is guided by the output side annular end 1 1 of the housing 2 to the protruding from the inner shell 8 Appendix 17 (lower sides 18 of the flax 5) at the level of the nose 13 orthogonal to the longitudinal axis of the plunger 1 and in this case over the trapezoidal recess 16 with connected to the nose 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Automatic Assembly (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne un procédé de montage d'un poussoir (1) pour une pompe d'injection, ledit poussoir (1) comportant une enveloppe (2) de type élément tubulaire, au niveau de la face frontale annulaire d'entrée (3) de laquelle est monté un boulon (7) porteur d'un rouleau (6). Un élément pont (9) est disposé à part, axialement en-dessous du rouleau (6), pour relier ainsi deux points opposés d'une surface intérieure (8) de l'enveloppe (2), et il comporte une face frontale inférieure (10) laquelle est située d'un côté d'une face frontale annulaire de sortie (11) de l'enveloppe (2) et laquelle sert d'appui pour une pièce qui suit ledit poussoir. L'élément pont (9) est retenu, vers la face frontale annulaire d'entrée (3), par un appui (17) faisant saillie depuis la surface intérieure (8), et ledit élément pont est pourvu d'un doigt (13) faisant saillie depuis sa surface extérieure (12), ledit doigt (13) passant par un orifice (14) ménagé dans l'enveloppe (2) pour réaliser un blocage en rotation. L'élément pont (9), réalisé sous forme d'une barre longitudinale aux parois épaisses, et le doigt (13) sont acheminés séparément, l'un d'entre eux étant tout d'abord amené au poussoir, où il est maintenu dans sa position finale ou à proximité de sa position finale, lesdites pièces étant ensuite réunies au sein du poussoir (1).
PCT/DE2013/200040 2012-09-28 2013-07-10 Procédé de montage d'un poussoir WO2014048421A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201380049877.3A CN104662291B (zh) 2012-09-28 2013-07-10 用于装配推杆的方法
EP13752809.7A EP2901013A1 (fr) 2012-09-28 2013-07-10 Procédé de montage d'un poussoir

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012217801.5 2012-09-28
DE102012217801.5A DE102012217801A1 (de) 2012-09-28 2012-09-28 Verfahren zur Montage eines Stößel

Publications (1)

Publication Number Publication Date
WO2014048421A1 true WO2014048421A1 (fr) 2014-04-03

Family

ID=49033756

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2013/200040 WO2014048421A1 (fr) 2012-09-28 2013-07-10 Procédé de montage d'un poussoir

Country Status (4)

Country Link
EP (1) EP2901013A1 (fr)
CN (1) CN104662291B (fr)
DE (1) DE102012217801A1 (fr)
WO (1) WO2014048421A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105014343A (zh) * 2015-07-03 2015-11-04 安徽省振华科技工业有限公司 一种推杆装配工装
EP3054116A1 (fr) * 2015-02-05 2016-08-10 Aktiebolaget SKF Galet suiveur et procédé de fabrication d'un tel galet suiveur
CN112805464A (zh) * 2018-11-13 2021-05-14 舍弗勒技术股份两合公司 用于燃料泵的滚子挺杆

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013202129A1 (de) 2013-02-08 2014-08-14 Schaeffler Technologies Gmbh & Co. Kg Stößel
US10082050B2 (en) * 2015-09-16 2018-09-25 Eaton Intelligent Power Limited Anti-rotation device for lifter
DE102015218754B4 (de) * 2015-09-29 2018-08-30 Continental Automotive Gmbh Hochdruckpumpe
EP3173591B1 (fr) * 2015-11-24 2018-07-11 Aktiebolaget SKF Dispositif de galet de came avec entretoise
CN108884730B (zh) * 2016-02-19 2021-10-12 伊顿智能动力有限公司 具有防旋转插塞的发动机气门挺杆
DE102019102289B3 (de) 2019-01-30 2020-03-05 Schaeffler Technologies AG & Co. KG Rollenstößel für eine Kraftstoffpumpe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080190237A1 (en) * 2006-12-06 2008-08-14 Schaeffler Kg Mechanical tappet in particular for a fuel pump of an internal combustion engine
DE102009013132A1 (de) * 2009-03-13 2010-09-16 Schaeffler Technologies Gmbh & Co. Kg Stössel
DE102010022318A1 (de) 2010-06-01 2011-12-01 Schaeffler Technologies Gmbh & Co. Kg Rollenstößel

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5303468B2 (ja) * 2006-12-05 2013-10-02 シャエフラー カーゲー 特に内燃機関の燃料ポンプのためのメカニカルタペット
DE102009013130A1 (de) * 2009-03-13 2010-09-16 Schaeffler Technologies Gmbh & Co. Kg Stössel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080190237A1 (en) * 2006-12-06 2008-08-14 Schaeffler Kg Mechanical tappet in particular for a fuel pump of an internal combustion engine
DE102009013132A1 (de) * 2009-03-13 2010-09-16 Schaeffler Technologies Gmbh & Co. Kg Stössel
DE102010022318A1 (de) 2010-06-01 2011-12-01 Schaeffler Technologies Gmbh & Co. Kg Rollenstößel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3054116A1 (fr) * 2015-02-05 2016-08-10 Aktiebolaget SKF Galet suiveur et procédé de fabrication d'un tel galet suiveur
US9850785B2 (en) 2015-02-05 2017-12-26 Aktiebolaget Skf Cam follower and method for manufacturing such a cam follower
CN105014343A (zh) * 2015-07-03 2015-11-04 安徽省振华科技工业有限公司 一种推杆装配工装
CN112805464A (zh) * 2018-11-13 2021-05-14 舍弗勒技术股份两合公司 用于燃料泵的滚子挺杆

Also Published As

Publication number Publication date
CN104662291A (zh) 2015-05-27
CN104662291B (zh) 2017-09-12
EP2901013A1 (fr) 2015-08-05
DE102012217801A1 (de) 2014-04-03

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