EP1208296B1 - Verteilereinspritzpumpe - Google Patents
Verteilereinspritzpumpe Download PDFInfo
- Publication number
- EP1208296B1 EP1208296B1 EP01911433A EP01911433A EP1208296B1 EP 1208296 B1 EP1208296 B1 EP 1208296B1 EP 01911433 A EP01911433 A EP 01911433A EP 01911433 A EP01911433 A EP 01911433A EP 1208296 B1 EP1208296 B1 EP 1208296B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- injection pump
- roller ring
- distributor injection
- roller
- bolt
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M41/00—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
- F02M41/08—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined
- F02M41/10—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor
- F02M41/12—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor the pistons rotating to act as the distributor
- F02M41/121—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor the pistons rotating to act as the distributor with piston arranged axially to driving shaft
Definitions
- the invention relates to a distributor injection pump with a housing and an adjustably arranged in the housing roller ring, with at least a roller is provided on which a cam support can, which serves to actuate a pump piston, wherein the roller in the Roller ring is mounted by means of a bolt, which is relative to the central axis of the roller ring extends in the radial direction.
- Such a distributor injection pump serves a cylinder of a Internal combustion engine at the right time with the right amount of fuel To supply fuel.
- the pump piston is provided, which is connected to the cam. If the cam is relative is rotated to the roller ring, her cammed surface rolls on the rollers. In this way, the cam disc undergoes a Lifting motion transmitted to the pump piston.
- the bolt acting periodic force component By at a Stroke on the bolt acting forces results on the bolt acting periodic force component, which the bolt with respect to Center axis of the roller ring in the radial direction applied to the outside.
- roller ring Bolts which are usually made of steel, with their radially outer End in the opposite end of this part of the housing, which is usually made of aluminum, hammer in or dig in. This can in the long term the reliability of the injection pump affect.
- From DE 33 31 725 A1 is a front cam drive, in particular for fuel injection pumps described in which bolts, on which rollers are mounted, via the cam tracks of a Cam disk for driving pump piston run, at least indirectly and in the radial direction frictionally connected to a roller ring. This non-positive connection is made via Thrust washers.
- the invention is therefore based on the object, a distributor injection pump of the above mentioned type in such a way that digging the bolts of the roller ring in the Housing of the distributor injection pump with little manufacturing effort is reliably prevented.
- the support element is used to the force acting on the associated bolt axial force through a roller ring arranged on the Clamp, which is secured in openings on the roller ring, a large area in the housing of the Initiate distributor injection pump.
- the attachment of the clip on the roller ring via a Clip connection.
- the clip covers the radially outer end of the Bolts and, when an axial force is exerted on the bolt, out to the housing of the Distributor injection pump deformed out so that it rests against the housing and the bolt acting axial force over a large area in the housing initiates.
- material for the clip Preferably steel is chosen.
- FIG. 1 is a schematic partial section of a distributor injection pump according to the invention shown serving to fuel a cylinder Inject internal combustion engine.
- the injection pump includes a housing 10, in which a roller ring 12 is arranged.
- the roller ring 12 has an inner ring 14 and an outer ring 16, which between them an annular Take picture 18.
- Within the annular receptacle 18 are a plurality of rollers 20 are arranged, each having a socket 22 on a Bolt 24 are stored.
- Each bolt 24 extends with respect to a central axis of the roller ring 12 in the radial direction and is with its radially inner End received in the inner ring 14, while its radially outboard End is received in the outer ring 16.
- a thrust washer 26 is arranged between the outer ring 16 and each roller 20.
- a cam plate 28 cooperates, which of a Compression spring 30 is acted upon against the rollers 20.
- an extension 32 is connected, which in turn is connected to a (not shown) Pump piston is connected.
- Cam disk 28 It is a drive shaft 36 is provided, which via a coupling 38 the Cam disk 28 can set in rotation.
- the cam plate 28 is running then with their rollers 20 facing, provided with cams surface the rollers 20, resulting in a periodic lifting movement of the cam 28 results, which is transmitted to the pump piston, which finally the promotes fuel to be injected.
- each support member 40 On the roller ring 12 is a support member 40 (see also Figures 2 and 3) attached, which is provided with two bent ends 42, which as Serve spring tabs. Each bent end engages in an opening 44, which is formed on the outer ring 16 of the roller ring 12.
- the support element 40 extends over an angular range that is much larger than the Angular region is over which the radially outer end of corresponding bolt 24 extends, and covers the radially outer End of the corresponding bolt substantially from.
- each support member is disposed in a recess 46 which between two associated with the same support member 40 openings 44th extends.
- the support member 40 As a material for the support member 40, in particular steel can be used become. Alternatively, the use of a suitable plastic conceivable. Notwithstanding the embodiment shown, in which a separate Supporting element is used for each bolt is also the use a single support element for all bolts conceivable. Also, instead of the support element shown from flat material, for example, a wire clamp can be used, which encloses either the entire outer ring 16 and arranged in the region of the axially outer ends of the bolt 24 is or is clipped separately into the openings 44.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Reciprocating Pumps (AREA)
Description
- Fig. 1 in einer schematischen Schnittansicht einen Teil einer erfindungsgemäßen Verteilereinspritzpumpe;
- Fig. 2 in einer perspektivischen Ansicht einen Teil eines Rollenrings, der in der Verteilereinspritzpumpe von Fig. 2 verwendet wird; und
- Fig. 3 in einer weiteren perspektivischen Ansicht einen Teil des Rollenrings.
Claims (5)
- Verteilereinspritzpumpe mit einem Gehäuse (10) und einem in dem Gehäuse (10) verstellbar angeordneten Rollenring (12), der mit mindestens einer Rolle (20) versehen ist, an der sich eine Nockenscheibe (28) abstützen kann, die zur Betätigung eines Pumpenkolbens dient, wobei die Rolle (20) in dem Rollenring (12) mittels eines Bolzens (24) gelagert ist, der sich relativ zur Mittelachse des Rollenrings (12) in radialer Richtung erstreckt und am radial außenliegenden Ende des Bolzens (24) ein Abstützelement (40) am Rollenring (12) angeordnet ist, dadurch gekennzeichnet, dass das Abstützelement (40) eine Klammer ist, die in Öffnungen (44) im Rollenring (12) eingeclipst ist.
- Verteilereinspritzpumpe nach Anspruch 1, dadurch gekennzeichnet, dass die Klammer eine Federklammer ist.
- Verteilereinspritzpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Rollenring (12) mit einer Aussparung (46) für das Abstützelement (40) versehen ist.
- Verteilereinspritzpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Abstützelement (40) aus Metall besteht.
- Verteilereinspritzpumpe nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Abstützelement (40) aus Kunststoff besteht.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10006558 | 2000-02-15 | ||
DE10006558A DE10006558A1 (de) | 2000-02-15 | 2000-02-15 | Verteilereinspritzpumpe |
PCT/DE2001/000471 WO2001061179A2 (de) | 2000-02-15 | 2001-02-08 | Verteilereinspritzpumpe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1208296A2 EP1208296A2 (de) | 2002-05-29 |
EP1208296B1 true EP1208296B1 (de) | 2005-12-21 |
Family
ID=7630892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01911433A Expired - Lifetime EP1208296B1 (de) | 2000-02-15 | 2001-02-08 | Verteilereinspritzpumpe |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1208296B1 (de) |
JP (1) | JP4612264B2 (de) |
CN (1) | CN1184415C (de) |
BR (1) | BR0104484B1 (de) |
DE (2) | DE10006558A1 (de) |
PL (1) | PL350829A1 (de) |
RU (1) | RU2267639C2 (de) |
WO (1) | WO2001061179A2 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006028348B3 (de) | 2006-06-20 | 2007-10-31 | Siemens Ag | Rollenlagerungsvorrichtung |
EP2853696B1 (de) | 2013-09-27 | 2017-03-01 | Aktiebolaget SKF | Mechanisches System, Einspritzpumpe und Ventilaktor mit einem solchen mechanischen System und Herstellungsverfahren |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5935678U (ja) * | 1982-08-31 | 1984-03-06 | マツダ株式会社 | デイ−ゼルエンジンの燃料噴射ポンプ |
DE3331725C2 (de) * | 1983-09-02 | 1995-01-26 | Bosch Gmbh Robert | Stirnnockenantrieb insbesondere für Kraftstoffeinspritzpumpen |
JPH1054321A (ja) * | 1996-08-08 | 1998-02-24 | Toyota Motor Corp | 燃料噴射ポンプのローラブッシュ |
-
2000
- 2000-02-15 DE DE10006558A patent/DE10006558A1/de not_active Ceased
-
2001
- 2001-02-08 WO PCT/DE2001/000471 patent/WO2001061179A2/de active IP Right Grant
- 2001-02-08 EP EP01911433A patent/EP1208296B1/de not_active Expired - Lifetime
- 2001-02-08 PL PL01350829A patent/PL350829A1/xx not_active Application Discontinuation
- 2001-02-08 DE DE50108447T patent/DE50108447D1/de not_active Expired - Lifetime
- 2001-02-08 CN CNB018002269A patent/CN1184415C/zh not_active Expired - Lifetime
- 2001-02-08 JP JP2001560004A patent/JP4612264B2/ja not_active Expired - Fee Related
- 2001-02-08 RU RU2001130340/06A patent/RU2267639C2/ru active
- 2001-02-08 BR BRPI0104484-2A patent/BR0104484B1/pt not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
BR0104484A (pt) | 2002-01-08 |
JP2003522903A (ja) | 2003-07-29 |
WO2001061179A3 (de) | 2002-03-07 |
PL350829A1 (en) | 2003-02-10 |
JP4612264B2 (ja) | 2011-01-12 |
DE50108447D1 (de) | 2006-01-26 |
EP1208296A2 (de) | 2002-05-29 |
CN1364220A (zh) | 2002-08-14 |
BR0104484B1 (pt) | 2009-08-11 |
CN1184415C (zh) | 2005-01-12 |
DE10006558A1 (de) | 2001-08-30 |
RU2267639C2 (ru) | 2006-01-10 |
WO2001061179A2 (de) | 2001-08-23 |
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