EP0874152B1 - Drosselelement - Google Patents
Drosselelement Download PDFInfo
- Publication number
- EP0874152B1 EP0874152B1 EP98102040A EP98102040A EP0874152B1 EP 0874152 B1 EP0874152 B1 EP 0874152B1 EP 98102040 A EP98102040 A EP 98102040A EP 98102040 A EP98102040 A EP 98102040A EP 0874152 B1 EP0874152 B1 EP 0874152B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- duct
- insert
- throttle
- throttle opening
- throttle element
- 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
- 239000000446 fuel Substances 0.000 claims description 11
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 3
- 239000007788 liquid Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008141 laxative Substances 0.000 description 1
- 230000002475 laxative effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/794—With means for separating solid material from the fluid
Definitions
- the invention is based on a throttle element according to the preamble of the claim.
- a throttle element according to the preamble of the claim.
- the throttle opening formed coaxially to the cylindrical insert and so in a channel pressed in that the peripheral wall of the throttle element along the entire length Concludes the canal.
- Such throttle elements have the disadvantage that they are in the Operation can become clogged by dirt particles, so that the liquid flow is prevented.
- the throttle element for installation in a Fuel injection pump known.
- This throttle element has a throttle opening, through the one from one room to another room of the fuel injection pump flowing liquid flow can be limited.
- the throttle element is as an insert formed and borders with a peripheral wall sealing a liquid leading Channel on.
- a filter is also provided upstream of the throttle opening.
- connection channel 1 is a partial section from a fuel injection pump reproduced with a fuel under low pressure leading connection channel 1, the fuel one Pump suction chamber, which is not shown here, feeds and one substantially perpendicular to this connection channel 1 laxative channel 2, the fuel here should be fed to cooling electromagnets.
- this amount of fuel supply through the channel 2 is in an insert 5 inserted into a bore part 4, preferably pressed. This is near the Branch of channel 2 from connecting channel 1. From the first, the first end facing away from the connecting channel 1 6 of the insert leads a blind hole 8 inside the Use that is carried out in stages here.
- the blind hole 8 branches from this a radially extending Throttle bore 9 from which in an annular groove 10 in the Circumferential wall 11 of the insert opens out.
- This Annular gap 14 has an overall cross section that is larger than the flow cross section of the throttle opening 9. But since this larger cross-section on the entire peripheral wall of the Distributed use, there is a gap width that is essential is smaller than the clear diameter of the throttle bore 9.
- this is an annular gap excellent for filtering the inflowing fuel flow because of the engagement.
- the arrangement of the throttle opening can of course also in other equivalent way. So this can somewhere else in a different way Connection between the ring groove and an outlet on the be arranged downstream side of the insert.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Description
Claims (5)
- Drosselelement zum Einbau in eine Kraftstoffeinspritzpumpe mit einer Drosselöffnung (9), durch die ein von einem Raum (1) zum einem anderen Raum (4) der Kraftstoffeinspritzpumpe fließender Flüssigkeitsstrom begrenzbar ist, wobei das Drosselelement als Einsatz (5) ausgebildet ist und einen Teil einer Umfangswand (11) hat, der dichtend an die Wand (4) eines Flüssigkeit führenden Kanals (2) angrenzt, wobei zwischen den beiden Seiten des Einsatzes (5) die Drosselöffnung (9) angeordnet und stromaufwärts der Drosselöffnung (9) ein Filter vorgesehen ist, dadurch gekennzeichnet, daß zwischen der Wand (4) des Kanals und dem Einsatz (5) eine Ringnut (10) vorgesehen .ist, die stromabwärts von der Drosselöffnung (9) angeordnet ist und eine an die Ringnut (10) stromaufwärts davon angrenzende Umfangswand des Einsatzes (5) mit der Wand (4) des Kanals (2) einen als Filter dienenden Ringspalt (14) bildet, der Teil der Verbindung zwischen den Seiten des Einsatz (5) bildet, wobei der Querschnitt des Ringspalts (14) größer ist als der Querschnitt der Drosselöffnung (9).
- Drosselelement nach Anspruch 1, dadurch gekennzeichnet, daß die Ringnut (10) in der Umfangswand (11) des Einsatzes (5) angeordnet ist.
- Drosselelement nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Einsatz (5) in den Kanal (2) an die Stelle des Kanals (2) eingebaut ist, an der der Kanal (2), im wesentlichen rechtwinklig, von einem von der Flüssigkeit durchflossenen Verbindungskanal (1) zuflußseitig abzweigt.
- Drosselelement nach Anspruch 3, dadurch gekennzeichnet, daß der Kanal (2) mit dem Verbindungskanal (1) zwischen einer zweiten Stirnseite (17) des Einsatzes (5) und dem Verbindungskanal (1) ein Totwasserzone bildet.
- Drosselelement nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Einsatz (5) als ein in den Kanal (2) eingepreßtes zylindrischer Teil mit Kreisquerschnitt ausgeführt ist und einen Umfangsbereich aufweist, der zur Bildung des Ringspaltes (14) im Durchmesser reduziert ist und die Drosselöffnung in einen radial von der Ringnut 10) ausgehenden, in das Sackloch mündenden Kanal angeordnet ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29707496U DE29707496U1 (de) | 1997-04-25 | 1997-04-25 | Drosselelement |
| DE29707496U | 1997-04-25 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0874152A2 EP0874152A2 (de) | 1998-10-28 |
| EP0874152A3 EP0874152A3 (de) | 2000-10-25 |
| EP0874152B1 true EP0874152B1 (de) | 2004-10-06 |
Family
ID=8039537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98102040A Expired - Lifetime EP0874152B1 (de) | 1997-04-25 | 1998-02-06 | Drosselelement |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6162029A (de) |
| EP (1) | EP0874152B1 (de) |
| JP (1) | JP4243365B2 (de) |
| DE (2) | DE29707496U1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10048365B4 (de) * | 2000-09-29 | 2005-01-27 | Robert Bosch Gmbh | Drosselelement mit Spaltfilter |
| JP3841054B2 (ja) * | 2002-08-08 | 2006-11-01 | 株式会社デンソー | フィルタおよびそれを用いた燃料噴射装置 |
| DE102012207431A1 (de) * | 2012-05-04 | 2013-11-07 | Robert Bosch Gmbh | Kraftstoffhochdruckpumpe |
| GB2564654A (en) * | 2017-07-17 | 2019-01-23 | Delphi Int Operations Luxembourg Sarl | High pressure fuel pump |
| DE102022205544A1 (de) | 2022-05-31 | 2023-11-30 | Robert Bosch Gesellschaft mit beschränkter Haftung | Drosselelement |
| US11753996B1 (en) * | 2022-08-25 | 2023-09-12 | Collins Engine Nozzles, Inc. | Fuel injector manifold having trim device therein |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE407584C (de) * | 1924-05-25 | 1924-12-24 | Maschf Augsburg Nuernberg Ag | Druckventil fuer die Einspritzleitung von Verbrennungskraftmaschinen mit luftloser Einspritzung |
| GB925937A (en) * | 1959-06-05 | 1963-05-15 | Tatra Np | Improvements in and relating to fuel injection arrangements for compression-ignitionengines |
| US4186909A (en) * | 1978-05-23 | 1980-02-05 | Dynex/Rivett, Inc. | Fail-to-neutral module |
| US4676273A (en) * | 1986-10-07 | 1987-06-30 | General Motors Corporation | Electro-hydraulic pressure regulating valve |
| GB8828157D0 (en) * | 1988-12-02 | 1989-01-05 | Lucas Ind Plc | Fuel injection nozzles |
| DE4142998C1 (de) * | 1991-12-24 | 1993-07-22 | Robert Bosch Gmbh, 7000 Stuttgart, De | |
| DE4237469B4 (de) * | 1992-11-06 | 2004-05-13 | Robert Bosch Gmbh | Kraftstoffeinspritzeinrichtung, insbesondere Pumpedüse für Brennkraftmaschinen |
| US5333637A (en) * | 1993-06-11 | 1994-08-02 | Rosemount Inc. | Pneumatic instrument particle trap |
| DE29710159U1 (de) * | 1997-06-11 | 1998-10-08 | Robert Bosch Gmbh, 70469 Stuttgart | Drosselelement |
-
1997
- 1997-04-25 DE DE29707496U patent/DE29707496U1/de not_active Expired - Lifetime
-
1998
- 1998-02-06 EP EP98102040A patent/EP0874152B1/de not_active Expired - Lifetime
- 1998-02-06 DE DE59812059T patent/DE59812059D1/de not_active Expired - Lifetime
- 1998-04-27 JP JP11744798A patent/JP4243365B2/ja not_active Expired - Lifetime
- 1998-04-27 US US09/066,573 patent/US6162029A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10325375A (ja) | 1998-12-08 |
| EP0874152A3 (de) | 2000-10-25 |
| DE29707496U1 (de) | 1998-08-20 |
| DE59812059D1 (de) | 2004-11-11 |
| EP0874152A2 (de) | 1998-10-28 |
| JP4243365B2 (ja) | 2009-03-25 |
| US6162029A (en) | 2000-12-19 |
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