DE3328523A1 - METHOD FOR ADJUSTING AND CHECKING THE START OF DELIVERY ON AN AIR-COMPRESSING INJECTION COMBUSTION ENGINE WITH AN INJECTION PUMP - Google Patents
METHOD FOR ADJUSTING AND CHECKING THE START OF DELIVERY ON AN AIR-COMPRESSING INJECTION COMBUSTION ENGINE WITH AN INJECTION PUMPInfo
- Publication number
- DE3328523A1 DE3328523A1 DE19833328523 DE3328523A DE3328523A1 DE 3328523 A1 DE3328523 A1 DE 3328523A1 DE 19833328523 DE19833328523 DE 19833328523 DE 3328523 A DE3328523 A DE 3328523A DE 3328523 A1 DE3328523 A1 DE 3328523A1
- Authority
- DE
- Germany
- Prior art keywords
- injection pump
- pulse
- injection
- shaft
- setting
- 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
Links
- 238000002347 injection Methods 0.000 title claims description 40
- 239000007924 injection Substances 0.000 title claims description 40
- 238000000034 method Methods 0.000 title claims description 12
- 238000002485 combustion reaction Methods 0.000 title claims description 5
- SGPGESCZOCHFCL-UHFFFAOYSA-N Tilisolol hydrochloride Chemical compound [Cl-].C1=CC=C2C(=O)N(C)C=C(OCC(O)C[NH2+]C(C)(C)C)C2=C1 SGPGESCZOCHFCL-UHFFFAOYSA-N 0.000 claims description 5
- 238000011156 evaluation Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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
- F02M39/00—Arrangements of fuel-injection apparatus with respect to engines; Pump drives adapted to such arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating or supervising devices
- F02B77/087—Safety, indicating or supervising devices determining top dead centre or ignition-timing
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Testing Of Engines (AREA)
- High-Pressure Fuel Injection Pump Control (AREA)
Description
Daimler-Benz Aktiengesellschaft Daim 15 235/4 Daimler-Benz Aktiengesellschaft Daim 15 235/4
Stuttgart EPT fr-lzStuttgart EPT fr-lz
• O* 5. August 1983• O * August 5, 1983
Verfahren zur Einstellung und Prüfung des Förderbeginns an einer luftverdichtenden Einspritzbrennkraftmaschine mit einer EinspritzpumpeMethod for setting and checking the start of delivery on an air-compressing injection internal combustion engine with an injection pump
Die Erfindung bezieht sich auf ein Verfahren zur Einstellung und Prüfung des Förderbeginns an einer luftverdichtenden Einspritzbrennkraftmaschine mit einer Einspritzpumpe nach dem Oberbegriff des PatentanspruchsThe invention relates to a method for setting and checking the start of delivery on an air-compressing device Injection internal combustion engine with an injection pump according to the preamble of the claim
.29 49 018
Aus der DE-OS/ist ein Verfahren dieser Art bekannt, bei der als optimaler Sollabstand zwischen dem Kurbelwellen-
und dem Einspritzpumpenimpuls der Sollwert von etwa Kurbelwelle angegeben ist. Bei der Durchführung des Verfahrens
können motorindividuell auftretende Fehler, sei es durch Amplitudenänderungen durch Verdichtungsunterschiede
oder Kettenlängung nach längerer Betriebszeit, aber auch Fehleinstellungen der Einspritzpumpe
mittels Auswertegeräte ausgeglichen werden. In der Praxis ist es jedoch wiederholt vorgekommen, daß die
Auswertegeräte zum Ausfall der Anzeige oder zur Fehlanzeige führten..29 49 018
A method of this type is known from DE-OS / in which the desired value of approximately the crankshaft is specified as the optimal target distance between the crankshaft and the injection pump pulse. When performing the method, engine-specific errors, be it through amplitude changes due to compression differences or chain elongation after a long period of operation, but also incorrect settings of the injection pump, can be compensated for by means of evaluation devices. In practice, however, it has repeatedly happened that the evaluation devices led to the failure of the display or to a false display.
/2/ 2
Daim 15 235/4Daim 15 235/4
Der Erfindung liegt die Aufgabe zugrunde, das Verfahren zuverlässiger zu machen und den Aufwand des Verfahrens zu verringern ohne Beeinträchtigung der Meßgenauigkeit.The invention is based on the task of making the method more reliable and reducing the effort of the Process to reduce without impairing the measurement accuracy.
Zur Lösung dieser Aufgabe dienen die im Kennzeichen des Anspruchs 1 angegebenen Merkmale.The features indicated in the characterizing part of claim 1 serve to solve this problem.
In den Unteransprüchen sind noch für die Aufgabenlösung vorteilhafte Maßnahmen beansprucht.In the subclaims, measures which are advantageous for solving the problem are also claimed.
Es hat sich gezeigt, daß der tatsächliche Abstand, der durch Fehleinstellung der Einspritzpumpe und eventuellen Verschleiß entsteht, größer ist als 2° Kurbelwelle. Dadurch kann sich die Reihenfolge der Impulse zwischen der Einspritzpumpenseite und der Kurbelwellenseite umkehren, was bei den meisten Auswerte- bzw. Meßgeräten zu fehlerhaften Anzeigen führt. Andererseits machen sich bei bestimmten Sollabständen bereits Fehler durch Drehschwingungen des Motors bemerkbar.It has been shown that the actual distance caused by incorrect setting of the injection pump and possible wear arises, is greater than 2 ° crankshaft. This can change the order of the pulses between reverse the injection pump side and the crankshaft side, which is the case with most evaluation or measuring devices leads to incorrect displays. On the other hand, errors can be made at certain target distances Torsional vibrations of the engine noticeable.
Durch den erfindungsgemäßen Sollabstand von etwa 5° zwischen Kurbelwellen- und Einspritzpumpenimpuls sind derartige Mängel beseitigt.Due to the setpoint distance according to the invention of about 5 ° between the crankshaft pulse and the injection pump pulse such defects eliminated.
Bei der Anwendung des Verfahrens ergibt sich durch den festen 5° Sollabstand zwischen Kurbelwellen- und Einspritzpumpenimpuls für alle Dieselmotoren- und Einspritzpumpen-Bauarten ein einheitlicher Prüfwert.When using the method, the fixed 5 ° target distance between the crankshaft and Injection pump pulse a uniform test value for all diesel engines and injection pump types.
/3/ 3
Daim 15 235/4Daim 15 235/4
Dies ist von besonderem Vorteil wegen der Vereinfachung der Prüfunterlagen und der geringeren Fehlermöglichkeit bei der Prüfung. Da bei unterschiedlichen Dieselmotoren der Förderbeginn bezogen auf den Kurbelwinkel meist unterschiedlich ist, muß allerdings beim Einsatz einer bestimmten Einspritzpumpenausführung für unterschiedliche Motoren der Einspritzpumpenimpuls zur Einhaltung des 5°-Sollabstandes bezüglich der Einspritzpumpenwelle verschoben werden. Die verdreh- und fixierbare Ausführung des umlaufenden Teiles der . Einspritzpumpe gegenüber der Einspritzpumpenwelle ermöglicht jeden erforderlichen Verstellwinkel bzw. Verstellbereich, der bei der Ausführung nach der DE-OS 29 49 018 durch Verschieben der Impulsgeberhalterung nur begrenzt ist.This is of particular advantage because of the simplification of the test documents and the lower possibility of errors during the exam. Since, with different diesel engines, the start of delivery is related to the crank angle is mostly different, but must be used when using a specific injection pump design For different engines the injection pump pulse to maintain the 5 ° target distance with respect to the Injection pump shaft are shifted. The rotatable and fixable version of the rotating part of the . Injection pump opposite the injection pump shaft enables any required adjustment angle or Adjustment range, which in the execution according to DE-OS 29 49 018 by moving the pulse generator holder is only limited.
Die Erfindung wird anhand eines in der Zeichnung veranschaulichten Ausführungsbeispieles näher erläutert.The invention is explained in more detail using an exemplary embodiment illustrated in the drawing explained.
Es zeigen:Show it:
Figur 1 das Gesamtsystem des Reglerimpuls-Verfahrens in schematischer DarstellungFigure 1 shows the overall system of the controller pulse method in a schematic representation
Figur 2 den Fliehgewichtsträger als umlaufendes Teil auf der Einspritzpumpennockenwelle mit der impulsauslösenden Erhebung sowie den ImpulsgeberFIG. 2 the flyweight carrier as a rotating part on the injection pump camshaft with the impulse-triggering survey as well as the impulse generator
/4/ 4
-if- -if- Daim 15 235/4Daim 15 235/4
Figur 3 eine Seitenansicht des auf der Einspritzpumpenwelle aufgeschobenen Fliehgewichtsträgers Figure 3 is a side view of the on the injection pump shaft deferred flyweight carrier
Für die Anwendung des Verfahrens zur Einstellung und Prüfung des Förderbeginns an luftverdichtenden Einspritzbrennkraftmaschinen ist gemäß Figur 1 motorseitig ein mit der Kurbelwelle zusammenwirkender OT-Geber 1 und einspritzpumpenseitig ein Reglerimpulsgeber 2 vorgesehen. Zur Überprüfung der Förderbeginn-Einstellung ( FB-Einstellung) wird am laufenden Motor mit dem als Induktivgeber ausgebildeten Reglerimpulsgeber 2 der Reglerimpuls abgegriffen und dem OT-Impuls der Kurbelwelle zugeordnet. Der Reglerimpuls wird in einem Vorsatzadapter 3 umgewandelt und kann mit einem üblichen Otto-Motoren-Zündwinkel-Meßgerät 4 weiterverarbeitet werden.For the application of the method for setting and checking the start of delivery on air-compressing injection internal combustion engines is according to Figure 1 on the engine side a cooperating with the crankshaft TDC encoder 1 and a controller pulse generator 2 on the injection pump side. To check the start of delivery setting (FB setting) is carried out on the running motor with the controller pulse generator designed as an inductive transmitter 2 the controller pulse is tapped and assigned to the TDC pulse of the crankshaft. The controller impulse is converted into an adapter 3 and can be used with a conventional Otto engine ignition angle measuring device 4 are further processed.
Der Prüfwert ergibt sich aus der Lage des OT-Impulses bei 20° Kurbelwinkel (KW) nach OT und dem notwendigen Abstand von vorzugsweise 5° Kurbelwelle zwischen dem Reglerimpuls und dem OT-Impuls und die Einstellung dieses Wertes erfolgt bei einer Einspritzpumpe 5, bei der sich die den Einspritzpumpenimpuls auslösende Erhebung 6 an einem als Fliehgewichtsträger ausgebildeten und reglerseitig mit der Einspritzpumpennockenwelle 7 drehfest verbundenen Teil 8 befindet (Figur 2), durch Verdrehen dieses umlaufenden Tel J es 8 gegenüber der Einspritzpumpennockenwc1 I π . The test value results from the position of the TDC pulse at 20 ° crank angle (KW) after TDC and the necessary distance of preferably 5 ° crankshaft between the controller pulse and the TDC pulse the elevation 6 that triggers the injection pump pulse is located on a part 8 designed as a flyweight carrier and connected to the injection pump camshaft 7 on the controller side in a rotationally fixed manner (FIG. 2), by rotating this circumferential Tel J es 8 with respect to the injection pump cam wc1 I π.
Daim 15 235/4Daim 15 235/4
Das Verdrehen wird auf einfache Weise erreicht.Twisting is achieved in a simple manner.
Durch Lösen einer am Einspritzpumpennockenwellenende aufgeschraubten Befestigungsmutter 9 läßt sich der Fliehgewichtsträger 8 relativ zur Welle 7 drehen. Der Fliehgewichtsträger 8 ist mit einer Aufnahmebohrung 10 versehen, die dem reglerseitig konisch ausgebildeten Endbereich 11 der Einspritzpumpennockenwelle angepaßt ist. Nach der richtigen Zuordnung des Fliehgewichtsträgers 8 zur Welle 7 werden beide Teile durch Anziehen der Befestigungsmutter 9 drehfest verspannt.By loosening a fastening nut 9 screwed onto the injection pump camshaft end the flyweight carrier 8 rotate relative to the shaft 7. The flyweight carrier 8 is provided with a receiving bore 10 provided, the end region 11 of the injection pump camshaft, which is conically formed on the regulator side is adapted. After the correct assignment of the flyweight carrier 8 to the shaft 7 both parts are clamped in a rotationally fixed manner by tightening the fastening nut 9.
, 8, 8th
- Leerseite -- blank page -
Claims (3)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833328523 DE3328523A1 (en) | 1983-08-06 | 1983-08-06 | METHOD FOR ADJUSTING AND CHECKING THE START OF DELIVERY ON AN AIR-COMPRESSING INJECTION COMBUSTION ENGINE WITH AN INJECTION PUMP |
IT48681/84A IT1177950B (en) | 1983-08-06 | 1984-08-02 | PROCEDURE AND DEVICE TO ADJUST AND CONTROL THE START OF POWER SUPPLY OF AN INTERNAL COMBUSTION INJECTION AND AIR COMPRESSION ENGINE |
GB08419855A GB2144494B (en) | 1983-08-06 | 1984-08-03 | Method and apparatus for setting and checking the commencement of delivery of a fuel-injection pump for supplying an internal combustion engine |
FR8412396A FR2550279A1 (en) | 1983-08-06 | 1984-08-06 | METHOD FOR ADJUSTING AND MONITORING THE START OF SUPPLY IN AN AIR COMPRESSION INJECTION ENGINE EQUIPPED WITH AN INJECTION PUMP |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833328523 DE3328523A1 (en) | 1983-08-06 | 1983-08-06 | METHOD FOR ADJUSTING AND CHECKING THE START OF DELIVERY ON AN AIR-COMPRESSING INJECTION COMBUSTION ENGINE WITH AN INJECTION PUMP |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3328523A1 true DE3328523A1 (en) | 1985-03-07 |
DE3328523C2 DE3328523C2 (en) | 1987-08-27 |
Family
ID=6206012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19833328523 Granted DE3328523A1 (en) | 1983-08-06 | 1983-08-06 | METHOD FOR ADJUSTING AND CHECKING THE START OF DELIVERY ON AN AIR-COMPRESSING INJECTION COMBUSTION ENGINE WITH AN INJECTION PUMP |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE3328523A1 (en) |
FR (1) | FR2550279A1 (en) |
GB (1) | GB2144494B (en) |
IT (1) | IT1177950B (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR777073A (en) * | 1934-07-30 | 1935-02-11 | Donetti & Nobile | Disc with graduated moving ring, specially adapted for phasing during testing of injection pumps of internal combustion engines |
DE2949100A1 (en) * | 1979-12-06 | 1981-06-11 | Robert Bosch Gmbh, 7000 Stuttgart | DEVICE FOR FASTENING A DRIVE SHAFT ASSEMBLED IN A FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES |
DE2949018A1 (en) * | 1979-12-06 | 1981-06-11 | Robert Bosch Gmbh, 7000 Stuttgart | METHOD FOR ANGLED RIGHT ATTACHMENT OF A FUEL INJECTION PUMP TO AN INTERNAL COMBUSTION ENGINE |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8120023U1 (en) * | 1981-07-09 | 1983-01-05 | Robert Bosch Gmbh, 7000 Stuttgart | "Device for determining a predetermined rotational position of a rotating body, in particular the delivery start position of the drive shaft of a fuel injection pump for internal combustion engines" |
DE3225553A1 (en) * | 1982-07-08 | 1984-01-12 | Robert Bosch Gmbh, 7000 Stuttgart | DEVICE FOR FASTENING A DRIVE SHAFT AND FASTENING BOLT ASSEMBLED IN A FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES |
-
1983
- 1983-08-06 DE DE19833328523 patent/DE3328523A1/en active Granted
-
1984
- 1984-08-02 IT IT48681/84A patent/IT1177950B/en active
- 1984-08-03 GB GB08419855A patent/GB2144494B/en not_active Expired
- 1984-08-06 FR FR8412396A patent/FR2550279A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR777073A (en) * | 1934-07-30 | 1935-02-11 | Donetti & Nobile | Disc with graduated moving ring, specially adapted for phasing during testing of injection pumps of internal combustion engines |
DE2949100A1 (en) * | 1979-12-06 | 1981-06-11 | Robert Bosch Gmbh, 7000 Stuttgart | DEVICE FOR FASTENING A DRIVE SHAFT ASSEMBLED IN A FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES |
DE2949018A1 (en) * | 1979-12-06 | 1981-06-11 | Robert Bosch Gmbh, 7000 Stuttgart | METHOD FOR ANGLED RIGHT ATTACHMENT OF A FUEL INJECTION PUMP TO AN INTERNAL COMBUSTION ENGINE |
Also Published As
Publication number | Publication date |
---|---|
GB8419855D0 (en) | 1984-09-05 |
GB2144494B (en) | 1987-04-23 |
FR2550279A1 (en) | 1985-02-08 |
IT8448681A0 (en) | 1984-08-02 |
DE3328523C2 (en) | 1987-08-27 |
IT1177950B (en) | 1987-08-26 |
GB2144494A (en) | 1985-03-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8363 | Opposition against the patent | ||
8330 | Complete renunciation |