EP1377748B1 - Prüfstand zur ermittlung von drücken an druckbeaufschlagten bauteilen - Google Patents

Prüfstand zur ermittlung von drücken an druckbeaufschlagten bauteilen Download PDF

Info

Publication number
EP1377748B1
EP1377748B1 EP02737755A EP02737755A EP1377748B1 EP 1377748 B1 EP1377748 B1 EP 1377748B1 EP 02737755 A EP02737755 A EP 02737755A EP 02737755 A EP02737755 A EP 02737755A EP 1377748 B1 EP1377748 B1 EP 1377748B1
Authority
EP
European Patent Office
Prior art keywords
pressure
switching valve
switching
test
switching position
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
Application number
EP02737755A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1377748A1 (de
Inventor
Ulrich Lessing
Werner Teschner
Wilhelm Christ
Marcus Schilling
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1377748A1 publication Critical patent/EP1377748A1/de
Application granted granted Critical
Publication of EP1377748B1 publication Critical patent/EP1377748B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus

Definitions

  • test stands with different pressures to determine whether the expected relative movement of a sub-component adjusts to another component component when creating a certain pressure level on the component.
  • the component is subjected to test routines at several test benches.
  • components such as components of injectors for injecting fuel into the combustion chambers of internal combustion engines
  • these pressures are generated in test benches.
  • injectors are tested in 2-spring holder design for defined, according to the design specifications adjusting opening pressures, it was forced to test the injectors at several test benches.
  • the pressures are set according to the individual test benches, so that must be changed from test bench to test bench, for example, the first and second opening pressure on a 2-Federhalter- Injector to determine.
  • test benches In addition to changing from test bench to test bench for determining the respective opening pressures on a pressurized component, the fact that a large number of test benches must be provided which have a large part of identical components is disadvantageous such as valves, pressure accumulator lines, evaluation PCs, etc. and differ only by the test pressures can be generated.
  • a test stand for testing of fuel injectors wherein between a pressure source and the injector, a first switching valve and a second switching valve are received, via which the injector to be tested is subjected to a first pressure. Furthermore, the injector is acted upon by a second pressure from a second pressure source via the second and a third switching valve.
  • pressurized components such as, for example, fuel injectors
  • opening pressures which occur in components of pressurized components used, for example, in fuel injection systems.
  • a first opening pressure and a second opening pressure of a 2-pen holder injector can be checked.
  • two pressures can be set on a test bench or a test bench with a single pressure source and with a separable from the pressure source storage tank, so that a separate pressure source for determining the second opening pressure can be saved.
  • the components used on a test bench or a test bench can thus be used multiple times.
  • the pressure values determined as well as other test pressures relevant with regard to the function as well as the operational safety can be documented and stored, so that an almost complete proof regarding the quality of the finished products can be provided.
  • the processing of the determined pressure values can take place in an evaluation with powerful PC's, so that on the one hand a large number of values can be reliably processed, on the other hand, extending to longer production periods statements that reveal weaknesses in the manufacturing process that can be reacted to.
  • test benches or test benches can also be used to check fuel pumps, pressure relief valves or other pressurized components.
  • FIG. 1 is a hand-held test bench with additional storage volume with two 3/2-way valves again, which is in operating position for measuring a first pressure level on a pressurized, to be tested component.
  • a test line 3 which extends to the component 12, 13 to be tested, is pressurized.
  • a test line 3 which extends to the component 12, 13 to be tested, is pressurized.
  • the component to be tested 12 or 13 as shown in FIG. 1 it may, for example, be a nozzle holding body 12 with a nozzle 13 received thereon.
  • a first switching valve 2 which may be formed, for example, as a 3/2-way solenoid valve, pressurized.
  • the first 3/2-way valve 2 releases the connection between test line 3 and pressure source 1, so that the component 12 or 13 to be checked can be subjected to a first pressure level.
  • the pressure level prevailing in the test line 3 is also applied via the branch 14 to a pressure sensor 15, in which the pressure signals are converted into signals which can be further processed in an evaluation electronics 16.
  • the received pressure values as well as other safety-relevant values can be displayed, stored permanently and thus documented for each tested component 12 or 13 via an input / output unit, such as a PC 17, connected downstream of the evaluation electronics 16.
  • the first 3/2-way valve 2 in the in FIG. 1 shown first switching position 2.1.
  • Another, second 3/2-way valve which may be preferably designed as a solenoid valve is denoted by reference numeral 5 and is placed in a first switching position 5.1.
  • the second switching valve 5 is assigned via a supply line section 7, a storage container 10.
  • the storage container 10 may be formed, for example, as a cylindrical member in which a piston 8 moves in the horizontal direction or in the vertical direction, depending on the embodiment.
  • the piston 8 is at its the inner surface of the storage container 10 contacting side with a piston sealing ring 9 and is acted upon by a spring element 18.
  • the cross-sectional area of the piston 8 is identified by reference numeral 19. Between the piston end face and the container wall of the storage container 10, a pressure volume 11 is enclosed, which is under a dependent of the biasing force of the spring element 18 pressure.
  • the pressure inside the storage container 10 is designated by p.
  • FIG. 2 is a test bench according to FIG. 1 can be seen with two 3/2-way valves, wherein a switch position is set, which serves to act on the storage container.
  • the first 3/2-way valve placed in its second switching position 2.2.
  • the test line 3 which extends to the component 12 or 13 to be tested, is disconnected from the pressure source 1.
  • the first 3/2-way valve 2 After establishing a second pressure level in the pressure chamber 11, the first 3/2-way valve 2 initially remains in its second switching position 2.2, which serves the filling of the additional storage container 10 just described. In contrast, the other 3/2-way valve 5 is transferred from its first switching position 5.1 in its second switching position 5.2. As a result, the pressure prevailing in the pressure chamber 11, ie, the second higher pressure, via the supply line 7 and the test line 3 at the component to be checked 12 and 13 respectively at. In the second switching position 5.2 of the second 3/2-way valve 5, the filling line 4 connected to the pressure source 1 is blocked, so that the test line 3 to the verifying component 12 and 13 exclusively with the higher pressure generated in the additional storage tank 10, for Example, 500 bar, can be applied.
  • the second pressure which is compared to the first pressure at a much higher level, is also in the branch 14 of the test line 3 and is converted at a pressure transducer 15 in further processable signals.
  • a digital signal processor is added, which carries out a further processing of the recorded first and second pressures, so that an output, further processing, storage and a complete documentation of the obtained, per component to be checked 12 and 13 obtained Pressure values individually possible.
  • complete verification can be carried out and any possible sources of error in production can be detected.
  • test stand configured according to the invention could be used variably with regard to the test pressures to be generated, since the first pressure largely depends on the pressurization of the pressure source 1 and the second pressure depends on the design of the piston 8 or spring element 18 in the additionally provided storage container 10.
  • other pressurized components such as, for example, fuel pumps, valves or pressure relief valves, can be tested for pressure levels or critical pressure levels occurring during operation at the test benches or test stands configured according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Fluid Pressure (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
EP02737755A 2001-03-30 2002-03-27 Prüfstand zur ermittlung von drücken an druckbeaufschlagten bauteilen Expired - Lifetime EP1377748B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2001115924 DE10115924A1 (de) 2001-03-30 2001-03-30 Prüfstand zur Ermittlung von Drücken an druckbeaufschlagten Bauteilen
DE10115924 2001-03-30
PCT/DE2002/001113 WO2002079639A1 (de) 2001-03-30 2002-03-27 Prüfstand zur ermittlung von drücken an druckbeaufschlagten bauteilen

Publications (2)

Publication Number Publication Date
EP1377748A1 EP1377748A1 (de) 2004-01-07
EP1377748B1 true EP1377748B1 (de) 2008-07-02

Family

ID=7679776

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02737755A Expired - Lifetime EP1377748B1 (de) 2001-03-30 2002-03-27 Prüfstand zur ermittlung von drücken an druckbeaufschlagten bauteilen

Country Status (5)

Country Link
EP (1) EP1377748B1 (zh)
CN (1) CN1289810C (zh)
BR (1) BR0204682B1 (zh)
DE (2) DE10115924A1 (zh)
WO (1) WO2002079639A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK200301534A (da) 2003-10-20 2005-04-21 Ib Obel Pedersen As Fremgangsmåde til afprövning af en brændstof-indspröjningsventil til en dieselmotor
DE102009056289B4 (de) * 2009-11-30 2012-12-20 Continental Automotive Gmbh Klassierverfahren eines Injektors, Kalibrierverfahren eines Kennfelds eines Injektors sowie Prüfstandvorrichtung eines Injektors
CN106948992B (zh) * 2017-05-24 2018-12-07 重庆电子工程职业学院 一种汽车喷油器性能测试工作台

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3117444A (en) * 1960-04-27 1964-01-14 Hartridge Ltd Leslie Injection nozzle tester
DE3128072A1 (de) * 1980-11-08 1982-06-24 Robert Bosch Gmbh, 7000 Stuttgart Pruefstand zum pruefen von einspritzduesen
DE3315503C1 (de) * 1983-04-28 1984-05-03 Daimler-Benz Ag, 7000 Stuttgart Testeinrichtung für Hochdruck-Einspritzventile
DE19726746C2 (de) * 1997-06-24 1999-05-06 Wtz Fuer Motoren Und Maschinen Verfahren zum Messen des Volumenstromes von Einspritzdüsen
DE19801640C1 (de) * 1998-01-17 1999-04-22 Wtz Motoren & Maschforsch Gmbh Prüfvorrichtung für Brennstoffeinspritzventile
DE19850221C1 (de) * 1998-10-31 2000-05-04 Mtu Friedrichshafen Gmbh Verfahren zum Prüfen einer Drosselstelle, insbesondere einer Drosselstelle eines Injektors
DE19851285C5 (de) * 1998-11-06 2007-02-08 Siemens Ag Prüfvorrichtung für ein Kraftstoffeinspritzventil

Also Published As

Publication number Publication date
EP1377748A1 (de) 2004-01-07
CN1289810C (zh) 2006-12-13
DE50212438D1 (de) 2008-08-14
CN1460152A (zh) 2003-12-03
WO2002079639A1 (de) 2002-10-10
BR0204682A (pt) 2003-06-10
BR0204682B1 (pt) 2011-12-13
DE10115924A1 (de) 2002-10-24

Similar Documents

Publication Publication Date Title
DE3128072A1 (de) Pruefstand zum pruefen von einspritzduesen
DE102006027710A1 (de) Verfahren und Vorrichtung zur indirekten Messung eines Motorzylinderdrucks
EP1520994A3 (de) Hydraulische Anordnung und Verfahren für eine solche
DE112004000270T5 (de) Messung von Fluidvolumina in einem Behälter unter Verwendung von Druck
DE102006016554A1 (de) Verfahren zum Befüllen mindestens eines Druckgasbehälters mit mindestens einem Gas, Zwischenstück zum Verbinden mit einer Öffnung eines Druckgasbehälters und Druckgasflaschenarmatur
DE2928153A1 (de) Bremsentestvorrichtung
EP1377748B1 (de) Prüfstand zur ermittlung von drücken an druckbeaufschlagten bauteilen
DE102008040628A1 (de) Verfahren und Vorrichtung zur Messung der mit einem Einspritzventil eingespritzten Flüssigkeitsmenge
DE102014007963A1 (de) Verfahren zum Betreiben einer Brennkraftmaschine und Motorsteuergerät
EP0881501A2 (de) Vorrichtung zur Funktionsüberprüfung eines elektronisch gesteuerten Regelsystems in einem Kraftfahrzeug nach einem Fertigungsvorgang
WO2011113659A1 (de) Verfahren und vorrichtung zur bewertung eines einspritzorgans
EP1362182B1 (de) Verfahren, computerprogramm und vorrichtung zum messen der einspritzmenge von einspritzdüsen, insbesondere für kraftfahrzeuge
DE102009026477A1 (de) Druckregelventil, insbesondere für einen Hochdruckspeicherkörper eines Kraftstoffeinspritzsystems
DE4116482A1 (de) Verfahren zum messen des druckes eines gases in einem gasdruckspeicher und vorrichtung zum durchfuehren desselben
DE102006034515B3 (de) Druckmess-Einrichtung für ein Common-Railsystem mit Einzelspeichern
WO2017102292A1 (de) Verfahren und vorrichtung zur bestimmung der einspritzrate eines einspritzventils
DE102017201877A1 (de) Messanordnung und Verfahren zur Bestimmung des zeitlichen Massenstromverlaufs während einer von einem Kraftstoffinjektor durchgeführten Einspritzung in einen Messraum
DE102005028137A1 (de) Verfahren zum Messen der Steuermenge eines Einspritzventils und ein Computerprogramm zur Durchführung eines solchen Verfahrens
DE3240622C3 (de) Verfahren zum Messen einer aus einer Brennstoff-Einspritzvorrichtung austretendde Brennstoffmenge und Verwendung einer Vorrichtung, zum Messen einer von der Brennstoff-Einspritzvorrichtung während eines einzelnen Einspritzvorganges abgegebenen Brennstoffmenge
EP2323882B1 (de) Verfahren zur funktionsprüfung eines bremssystems in einem fahrzeug
DE102006058269B4 (de) Verfahren zur Kalibrierung mindestens eines Drucksensors und entsprechender Drucksensor
DE102007030003A1 (de) Prüfverfahren zur Beurteilung von Kraftstoffinjektoren
DE202011105865U1 (de) Frontbereich eines Fahrzeugs mit einem bei einem Aufprall elastisch deformierbaren Schlauch
WO2021004851A1 (de) Verfahren zur prüfung eines faserverbundbauteils, vorrichtung, computerprogramm und maschinenlesbares speichermedium
DE102015111209B4 (de) Technik zur Erfassung von Druckänderungen in einem Kraftstoffversorgungssystem in Folge einer Pumpförderung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20031030

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR

REF Corresponds to:

Ref document number: 50212438

Country of ref document: DE

Date of ref document: 20080814

Kind code of ref document: P

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20090403

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20200324

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20200526

Year of fee payment: 19

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50212438

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211001

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210331