EP0055245A2 - Dispositif pour le positionnement et la coordination d'une pluralité de dispositifs d'injection - Google Patents

Dispositif pour le positionnement et la coordination d'une pluralité de dispositifs d'injection Download PDF

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Publication number
EP0055245A2
EP0055245A2 EP81890198A EP81890198A EP0055245A2 EP 0055245 A2 EP0055245 A2 EP 0055245A2 EP 81890198 A EP81890198 A EP 81890198A EP 81890198 A EP81890198 A EP 81890198A EP 0055245 A2 EP0055245 A2 EP 0055245A2
Authority
EP
European Patent Office
Prior art keywords
pump
crank
control rod
stop
rotational 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.)
Granted
Application number
EP81890198A
Other languages
German (de)
English (en)
Other versions
EP0055245B1 (fr
EP0055245A3 (en
Inventor
Anton Dipl. Ing. Dr. Techn. Pischinger
Heinz Rathmayr
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.)
Friedmann and Maier AG
Original Assignee
Friedmann and Maier AG
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 Friedmann and Maier AG filed Critical Friedmann and Maier AG
Publication of EP0055245A2 publication Critical patent/EP0055245A2/fr
Publication of EP0055245A3 publication Critical patent/EP0055245A3/de
Application granted granted Critical
Publication of EP0055245B1 publication Critical patent/EP0055245B1/fr
Expired legal-status Critical Current

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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
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
    • F02M59/26—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders
    • F02M59/28—Mechanisms therefor

Definitions

  • the invention relates to a method for adjusting and equating a plurality of injection devices for injection internal combustion engines, each of which is designed as a pump-nozzle assembly associated with a motor cylinder, and in which the change in the amount of fuel injected during operation by rotating the with an oblique control edge provided pump piston is effected via a crank arranged on the piston foot and a common control rod, and on an injection device of the type mentioned at the outset for carrying out this method.
  • Pump-nozzle assemblies formed from the injection pump and nozzle have a variable delivery capacity depending on the position of the inclined control edge. With a certain rotational position of the pump piston, the maximum delivery length of the pump-nozzle assembly or the maximum delivery rate permitted for a particular injection engine is reached.
  • the invention now aims to provide a particularly simple method for adjusting and equalizing the delivery rates of the individual pump-nozzle assemblies, with which the desired equality can be achieved without further ado using complex measuring instruments and special tools.
  • the method according to the invention essentially consists in that the control rod common to the pump-nozzle units is fixed in a preselected displacement position, that the cranks of the individual pump-nozzle assemblies are set in a relative to a predetermined individual delivery rate of each individual pump -The nozzle assembly is brought to the selected rotational position and held in this, and that the coupling elements connecting the crank to the control rod are non-positively connected to the control rod after setting the said rotational position of the cranks, whereupon the displacement movement of the control rod is released again.
  • the setting of the control rod common to the pump-nozzle units in a preselected displacement position can be made in a simple manner by means of a plug-in bolt with which the control rod is held in a certain length relative to the engine block.
  • the individual pump-nozzle assemblies can be measured on a test bench before installation and the rotational position of the crank corresponding to a predetermined individual delivery quantity can be specified in a simple manner, for example as a limit stop, during the measurement on the test bench.
  • Chen injection quantity corresponds and in this rotational position via coupling elements with the control rod non-positively.
  • the coupling element can be slidably guided, for example, via an elongated hole in the common control rod relative to the longitudinal direction of the control rod, and is non-positively connected to the control rod in the preselected rotational position of the cranks, for example by bolts and nuts. If the determination of the displacement movement of the control rod is subsequently canceled, a displacement of the control rod leads to an adjustment of the delivery rate that is the same for all pump-nozzle units, since the starting point for this adjustment, that is, the angle of rotation of the crank, also contributes which determined the coupling elements on the control rod, was chosen the same in relation to the flow rate of the individual pump-nozzle units.
  • the rotational position of the cranks can be set at a preselected angle to an end position, in particular the maximum delivery rate of the pump-nozzle assemblies, this rotational position either by an individual stop of the individual pump-nozzle units, or with the aid a simple teaching can be set at a predetermined angular distance from such an end position.
  • An injection device suitable for carrying out the method according to the invention for injection internal combustion engines in which the injection pump and injection nozzle are assembled to form a pump-nozzle assembly, each associated with a motor cylinder, and in which the change in the amount of fuel injected during operation is caused by rotation of the pump piston provided with an oblique control edge a crank arranged on the piston foot is effected in a particularly simple manner Characterized in that within the turning path of the crank there is provided a stop for the crank which is adjustable in its rotational position relative to the pump piston liner or to the housing of the pump-nozzle assembly and is fixed in rotation during operation.
  • Such a stop can initially be arranged in an adjustable manner in its rotational position for the measurement of the delivery quantity parameters of the individual pump-nozzle assemblies and can already be rigidly fixed on the test bench after a predetermined delivery quantity has been determined.
  • a certain delivery rate of the pump-nozzle assemblies is directly predetermined by the stop and the above-described setting and equalization of a plurality of such injection devices can be carried out in a particularly simple manner.
  • the training can be made so that the stop is connected to a non-rotatably guided slide or guide piece for the pump piston, the guide piece preferably being designed as a spring plate.
  • a stop which is particularly easy to adjust and which is rigid in the operating position is formed by an adjusting screw crossing the axis of the pump piston.
  • the design can also be such that the stop is rigidly connected to the upper spring plate of the pump piston spring, in particular is formed integrally therewith, and that the spring plate is rotationally fixed to the guide piece in a selected rotational position, in particular by plastic deformation is connected for the pump piston.
  • the slide preferably has a groove, so that a rotation lock is achieved by embossing on the circumference of the spring plate which carries the stop.
  • the An Impact can, however, be formed by a clamping ring fixed to the housing or a guide sleeve, the clamping ring preferably being designed as a guide and rotation lock for the spring plate carrying the stop or the guide piece carrying the stop.
  • FIG. 1 shows a cross section through the crank-side end of a pump-nozzle assembly according to the invention
  • FIG. 2 shows a plan view in the direction of arrow II of FIG. 1
  • FIG. 3 shows a modified embodiment analogous to the illustration according to FIG. 1
  • FIG 4 shows a plan view in the direction of arrow IV in FIG. 3
  • FIG. 5 shows a further embodiment in a section analogous to FIG. 1
  • FIG. 6 shows a section along the line in the direction of arrow VI-VI in FIG. 5
  • FIG 7 a modified design in section analogous to FIG.
  • FIG. 8 a plan view in the direction of arrow VIII in FIG. 7,
  • FIG. 9 a modified design in section analogous to FIG.
  • FIG. 10 a plan view in the direction of FIG Arrow X of FIG. 9
  • FIG. 11 is an illustration of the setting process of the pump-nozzle assembly according to FIG. 1 with the aid of an adjusting gauge
  • FIG. 12 is a plan view in the direction of arrow XII of FIG. 11.
  • the pump element piston is designated 1 and rotatably arranged by means of a crank 2.
  • the crank 2 is brought into a position in the test bench run, for example, in which the pump element piston 1 delivers the fuel delivery quantity that is required for the full-load operation of the internal combustion engine.
  • a spring plate 4 is first rotatably arranged, which consists of a plate 5 and a sheet metal ring 6.
  • the sheet metal ring 6 carries a stop 8 for the crank 2.
  • the spring plate 4 is now rotated until the stop 8 bears against the crank 2.
  • the sheet metal ring 6 is stamped with the guide piece 3 in this rotational position in the region of a groove 9 provided on the guide piece 3.
  • the pump-nozzle assembly is provided with a rigid stop 8, which now corresponds to the largest fuel delivery quantity required for full-load operation of the internal combustion engine.
  • the stop can also easily be provided in a rotational position which corresponds to a quantity which exceeds the largest delivery quantity during operation. If the subsequent equalization of the individual injection devices is to take place at a partial delivery rate of the amount required for teaching operation or the zero delivery rate, the crank can be brought into a certain angle of rotation 8 by means of a teaching.
  • crank 2 After installing the pump-nozzle assembly in the internal combustion engine, the crank 2 is now held in a rotational position at the stop 8 as shown in FIGS. 1 and 2.
  • the control rod or the delivery rate adjustment member 10 is fixed in its displacement position by a bolt 11.
  • a coupling element 12 is brought into engagement with the crank 2 and can be displaced in the longitudinal direction thereof in a slot 15 of the control rod 10 by means of a screw bolt 13 and a not yet tightened nut 14.
  • the coupling element is non-positively connected by tightening the nut 14 to the control rod 10 when the predetermined rotational position of the crank in the illustration according to FIG. 2 is the position in which the crank rests against the stop 8.
  • the slider can be displaced by the pin 16 in the axial direction of the pump element piston 1 and, in the event of change relative to the axis 17, is guided in an elongated hole 18 thereof.
  • the pump piston spring is designated 19.
  • FIGS. 1 and 2 have been retained for the same components.
  • the spring plate 20 is formed separately from the sheet metal ring 21 carrying the stop 8, so that a play S between the guide piece 3 and the sheet metal ring 21 carrying the stop 8 is maintained.
  • the sheet metal ring 21 is easily rotatable relative to the guide piece 22 in the non-embossed state and is secured against rotation in the desired rotational position in an analogous manner to that shown in FIG. 2.
  • a guide piece 22 is provided, which is designed directly as a spring plate for the spring 19.
  • the head of this guide piece carries a stop screw 23, which limits the rotation path of the crank 2. The limitation in turn takes place, for example, in the position of the maximum delivery rate required for the full load range.
  • the stop screw 23 can act together with a bolt 24 as a transport lock for the pressure piece 25.
  • a guide tube 26 which serves to support the lateral forces caused by the pump nozzle drive outside the pump spring 19.
  • An adjusting ring 27 is mounted on the guide tube 26 and, as in the previous embodiments, is rotated until the stop 28 connected to this adjusting ring 27 bears against the crank 2 brought into the desired rotational position. In this rotational position, the adjusting ring 27 is fixed and clamped by tightening the screw 29.
  • the setting or clamping ring 27 serves at the same time as a guide and rotation lock for the guide sleeve 31 carrying the stop 30, which is designed as a spring plate.
  • a pin 32 is welded to the adjusting or clamping ring 27, which engages in a recess 33 in the guide sleeve 31.
  • a transport lock can also be provided in the embodiment according to FIG. 7.
  • cranks 2 can be equated with respect to the control rod 10 in the full-load range, in the idling range or with zero delivery rate, for which purpose as in FIG. 11 and 12, can be used.
  • the pump-nozzle unit shown in FIG. 1 can again be seen in the illustration according to FIG. 11.
  • the crank 2 is now brought into a position on the test bench in which the pump element piston 1 delivers, for example, a fuel delivery quantity that is required for the idle operation of the internal combustion engine.
  • the An Beat 8 is now set at a predetermined distance A from this position as crank 2, for which a gauge 34 is used. It must be ensured that, depending on the position of the stop 8 or 8 a, the crank can reach both the position for the full load and the zero delivery rate.
  • the crank 2 is now held with the aid of the teaching 34 at a distance from the stop 8 in FIG. 12 and is coupled in this position to the control rod 10 via the coupling element 12. This process is repeated for the individual pump-nozzle assemblies which are to be operated with the same control rod 10. In this way, the pump-nozzle assemblies can be assimilated for any given delivery quantities, which must be the same for the individual pump-nozzle units.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
EP19810890198 1980-12-18 1981-12-10 Dispositif pour le positionnement et la coordination d'une pluralité de dispositifs d'injection Expired EP0055245B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT618580A AT381148B (de) 1980-12-18 1980-12-18 Einspritzeinrichtung fuer einspritzbrennkraftmaschinen
AT6185/80 1980-12-18

Publications (3)

Publication Number Publication Date
EP0055245A2 true EP0055245A2 (fr) 1982-06-30
EP0055245A3 EP0055245A3 (en) 1983-10-05
EP0055245B1 EP0055245B1 (fr) 1986-03-05

Family

ID=3583733

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810890198 Expired EP0055245B1 (fr) 1980-12-18 1981-12-10 Dispositif pour le positionnement et la coordination d'une pluralité de dispositifs d'injection

Country Status (3)

Country Link
EP (1) EP0055245B1 (fr)
AT (1) AT381148B (fr)
DE (1) DE3174018D1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2128268A (en) * 1982-10-11 1984-04-26 Same Spa Delivery-regulation unit for in-line injection pumps
GB2140098A (en) * 1983-05-16 1984-11-21 Yanmar Diesel Engine Co Fuel injection pump quantity control device
DE3539963A1 (de) * 1984-11-27 1986-06-05 Steyr-Daimler-Puch Ag, Wien Einrichtung zur kupplung einer verschiebbaren betaetigungsstange mit einem regelglied, insbesondere mit der regelstange eines einspritzaggregates einer brennkraftmaschine
US4603811A (en) * 1983-06-06 1986-08-05 Steyr-Daimler-Puch Ag Injection unit associated with each cylinder of a multicylinder diesel engine
EP0288669A1 (fr) * 1987-04-30 1988-11-02 GebràœDer Sulzer Aktiengesellschaft Pompe à injection de combustible pour moteur diesel
AT387823B (de) * 1984-12-11 1989-03-28 Steyr Daimler Puch Ag Hilfseinrichtung fuer eine betaetigungsstange der an pumpen-duesenaggregaten von einspritz-brennkraftmaschinen vorgesehenen regelglieder
AT390125B (de) * 1984-11-27 1990-03-26 Steyr Daimler Puch Ag Einrichtung zur kupplung einer verschiebbaren betaetigungsstange mit einem regelglied, insbesondere einer regelstange eines einspritzaggregates einer brennkraftmaschine
DE4207702A1 (de) * 1992-03-11 1993-09-16 Kloeckner Humboldt Deutz Ag Verfahren zur foerdermengeneinstellung von einspritzpumpenelementen an brennkraftmaschinen
GB2304829A (en) * 1995-09-02 1997-03-26 Bosch Gmbh Robert Fuel-injection pump for internal combustion engines
EP1298315A1 (fr) * 2000-05-26 2003-04-02 Yanmar Co., Ltd. Pompe d'injection de carburant

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR952906A (fr) * 1946-09-13 1949-11-28 Perfectionnements aux pompes à injection de combustible
FR1184664A (fr) * 1957-08-13 1959-07-24 Bosch Gmbh Robert Pompe d'injection de combustible pour moteur à combustion interne
DE2910622A1 (de) * 1978-04-21 1979-10-31 Steyr Daimler Puch Ag Regelvorrichtung fuer luftverdichtende, selbstzuendende brennkraftmaschinen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR952906A (fr) * 1946-09-13 1949-11-28 Perfectionnements aux pompes à injection de combustible
FR1184664A (fr) * 1957-08-13 1959-07-24 Bosch Gmbh Robert Pompe d'injection de combustible pour moteur à combustion interne
DE2910622A1 (de) * 1978-04-21 1979-10-31 Steyr Daimler Puch Ag Regelvorrichtung fuer luftverdichtende, selbstzuendende brennkraftmaschinen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
J. KASEDORF "Service-Fibel f}r die Gemischaufbereitung", 1. Auflage, Band 4 "Dieseleinspritztechnik", 1980, VOGEL-VERLAG, W}rzburg, Seiten 179-183 *

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2128268A (en) * 1982-10-11 1984-04-26 Same Spa Delivery-regulation unit for in-line injection pumps
GB2140098A (en) * 1983-05-16 1984-11-21 Yanmar Diesel Engine Co Fuel injection pump quantity control device
FR2546235A1 (fr) * 1983-05-16 1984-11-23 Yanmar Diesel Engine Co Dispositif de reglage de la quantite de combustible injecte, pour moteur diesel a vilebrequin vertical
AU569861B2 (en) * 1983-05-16 1988-02-25 Yanmar Diesel Engine Co. Ltd. Diesel engine fuel injection control device
US4603811A (en) * 1983-06-06 1986-08-05 Steyr-Daimler-Puch Ag Injection unit associated with each cylinder of a multicylinder diesel engine
AT386255B (de) * 1983-06-06 1988-07-25 Steyr Daimler Puch Ag Je einem zylinder eines mehrzylinder-dieselmotors zugeordnetes einspritzaggregat
AT390125B (de) * 1984-11-27 1990-03-26 Steyr Daimler Puch Ag Einrichtung zur kupplung einer verschiebbaren betaetigungsstange mit einem regelglied, insbesondere einer regelstange eines einspritzaggregates einer brennkraftmaschine
DE3539963A1 (de) * 1984-11-27 1986-06-05 Steyr-Daimler-Puch Ag, Wien Einrichtung zur kupplung einer verschiebbaren betaetigungsstange mit einem regelglied, insbesondere mit der regelstange eines einspritzaggregates einer brennkraftmaschine
US4677952A (en) * 1984-11-27 1987-07-07 Steyr- Daimler-Puch Ag Unit for coupling a displaceable operating bar or shaft with a regulating member, in particular with an adjusting rod of a fuel injection aggregate in an internal combustion engine
AT387823B (de) * 1984-12-11 1989-03-28 Steyr Daimler Puch Ag Hilfseinrichtung fuer eine betaetigungsstange der an pumpen-duesenaggregaten von einspritz-brennkraftmaschinen vorgesehenen regelglieder
EP0288669A1 (fr) * 1987-04-30 1988-11-02 GebràœDer Sulzer Aktiengesellschaft Pompe à injection de combustible pour moteur diesel
CH672005A5 (fr) * 1987-04-30 1989-10-13 Sulzer Ag
DE4207702A1 (de) * 1992-03-11 1993-09-16 Kloeckner Humboldt Deutz Ag Verfahren zur foerdermengeneinstellung von einspritzpumpenelementen an brennkraftmaschinen
GB2304829A (en) * 1995-09-02 1997-03-26 Bosch Gmbh Robert Fuel-injection pump for internal combustion engines
GB2304829B (en) * 1995-09-02 1997-11-05 Bosch Gmbh Robert Fuel injection pump for internal combustion engines
EP1298315A1 (fr) * 2000-05-26 2003-04-02 Yanmar Co., Ltd. Pompe d'injection de carburant
EP1298315A4 (fr) * 2000-05-26 2005-01-05 Yanmar Co Ltd Pompe d'injection de carburant
US6953022B1 (en) 2000-05-26 2005-10-11 Yanmar Co., Ltd. Fuel injection pump

Also Published As

Publication number Publication date
DE3174018D1 (en) 1986-04-10
EP0055245B1 (fr) 1986-03-05
EP0055245A3 (en) 1983-10-05
AT381148B (de) 1986-08-25
ATA618580A (de) 1986-01-15

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