EP0177715A3 - Process for detecting the closing point of a transverse bore by a piston in a pump cylinder - Google Patents

Process for detecting the closing point of a transverse bore by a piston in a pump cylinder Download PDF

Info

Publication number
EP0177715A3
EP0177715A3 EP85110244A EP85110244A EP0177715A3 EP 0177715 A3 EP0177715 A3 EP 0177715A3 EP 85110244 A EP85110244 A EP 85110244A EP 85110244 A EP85110244 A EP 85110244A EP 0177715 A3 EP0177715 A3 EP 0177715A3
Authority
EP
European Patent Office
Prior art keywords
closing point
piston
detecting
pump cylinder
transverse bore
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.)
Withdrawn
Application number
EP85110244A
Other languages
German (de)
French (fr)
Other versions
EP0177715A2 (en
Inventor
Jügen Dipl.-Ing. Abt (FH)
Heins Bollhagen
Dieter Dr. Dipl.-Phys. Handtmann
Ulrich Dr. Dipl.-Phys. Kuhn
Sybille Stumpf
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 EP0177715A2 publication Critical patent/EP0177715A2/en
Publication of EP0177715A3 publication Critical patent/EP0177715A3/en
Withdrawn legal-status Critical Current

Links

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
    • F02M65/002—Measuring fuel delivery of multi-cylinder injection pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B51/00—Testing machines, pumps, or pumping installations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2201/00—Pump parameters
    • F04B2201/02—Piston parameters
    • F04B2201/0201—Position of the piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2201/00—Pump parameters
    • F04B2201/08—Cylinder or housing parameters
    • F04B2201/0804—Noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2203/00—Motor parameters
    • F04B2203/02—Motor parameters of rotating electric motors
    • F04B2203/0209—Rotational speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2203/00—Motor parameters
    • F04B2203/02—Motor parameters of rotating electric motors
    • F04B2203/0211—Noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2205/00—Fluid parameters
    • F04B2205/01—Pressure before the pump inlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2205/00—Fluid parameters
    • F04B2205/08—Pressure difference over a throttle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2205/00—Fluid parameters
    • F04B2205/09—Flow through the pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2205/00—Fluid parameters
    • F04B2205/13—Pressure pulsations after the pump

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Reciprocating Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

Das vorgeschlagene Verfahren dient zur Ermittlung des Schließpunktes eines Pumpenkolbens (12), insbesondere einer Einspritzpumpe, gegenüber einer Durchlaßbohrung im zugehörigen Zylinder (14). Nähert sich die Kante des Pumpenkolbens dem Schließpunkt, so entsteht ein zuneh­ mend kleiner werdender Drosselquerschnitt. Bei der hier­ bei erfolgenden Axialbewegung des Kolbenelements wer­ den am Anfang und Ende einer bestimmten Wegstrecke (s₁, S₂) die hierbei abströmende Druckmittelmenge (Q₁, Q₂) ge­ messen. Aufgrund einer bestimmten, zu ermittelnden For­ mel läßt sich auf den Schließpunkt extrapolieren. Als Druck­ medium wird Druckluft verwendet. Das vorgeschlagene Verfahren ist sehr genau, und der erforderliche Geräte­ aufwand ist gering. The proposed method is used to determine the Closing point of a pump piston (12), in particular an injection pump, opposite a through hole in the associated cylinder (14). Approaches the edge of the Pump piston the closing point, so there is an increasing throttle cross-section becoming smaller and smaller. With this one when axial movement of the piston element occurs at the beginning and end of a certain distance (s₁, S₂) the amount of pressure medium flowing out (Q₁, Q₂) ge measure up. Based on a certain for mel can be extrapolated to the closing point. As a print medium, compressed air is used. The proposed Procedure is very accurate, and the equipment required effort is low.

EP85110244A 1984-09-22 1985-08-16 Process for detecting the closing point of a transverse bore by a piston in a pump cylinder Withdrawn EP0177715A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3434867 1984-09-22
DE19843434867 DE3434867A1 (en) 1984-09-22 1984-09-22 METHOD FOR DETERMINING THE CLOSING POINT OF A PUMP PISTON AGAINST A CROSS HOLE IN THE RELATED PUMP CYLINDER

Publications (2)

Publication Number Publication Date
EP0177715A2 EP0177715A2 (en) 1986-04-16
EP0177715A3 true EP0177715A3 (en) 1989-01-04

Family

ID=6246098

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85110244A Withdrawn EP0177715A3 (en) 1984-09-22 1985-08-16 Process for detecting the closing point of a transverse bore by a piston in a pump cylinder

Country Status (5)

Country Link
US (1) US4665742A (en)
EP (1) EP0177715A3 (en)
JP (1) JPS6179871A (en)
BR (1) BR8504602A (en)
DE (1) DE3434867A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5895844A (en) * 1997-05-29 1999-04-20 Outboard Marine Corporation Precise fuel flow measurement with modified fluid control valve
DE10107032A1 (en) * 2001-02-15 2002-08-29 Bosch Gmbh Robert Method, computer program and device for measuring the injection quantity of injection nozzles, in particular for motor vehicles
FI120602B (en) * 2008-01-02 2009-12-15 Waertsilae Finland Oy Method and apparatus for testing the injection pump piston
CN110530656B (en) * 2018-05-25 2022-03-18 中车唐山机车车辆有限公司 Wind regime system test bench

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE827142C (en) * 1950-02-09 1952-01-07 Bosch Gmbh Robert Tester for fuel injection systems
DE874531C (en) * 1951-11-13 1953-04-23 Bosch Gmbh Robert Device for checking the start of delivery of injection pumps for internal combustion engines
DE762582C (en) * 1942-03-08 1954-02-15 Bosch Gmbh Robert Device for determining the feed start position of fuel injection pumps
US2979945A (en) * 1957-08-16 1961-04-18 Flightex Fabrics Inc Apparatus for measuring the dead space travel in servo valves
DE3047078A1 (en) * 1980-12-13 1982-07-15 Robert Bosch Gmbh, 7000 Stuttgart METHOD FOR DETERMINING THE START OF DELIVERY IN INJECTION PUMPS
FR2523217A1 (en) * 1982-03-09 1983-09-16 France Etat Engine injection pump port closing detector - uses constant pressure gas supply connected to discharge union by control gate

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3005414A1 (en) * 1980-02-14 1981-08-20 Daimler-Benz Ag, 7000 Stuttgart Fuel injection pump for IC engine - is pivoted by servomotor to set optimum position w.r.t. engine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE762582C (en) * 1942-03-08 1954-02-15 Bosch Gmbh Robert Device for determining the feed start position of fuel injection pumps
DE827142C (en) * 1950-02-09 1952-01-07 Bosch Gmbh Robert Tester for fuel injection systems
DE874531C (en) * 1951-11-13 1953-04-23 Bosch Gmbh Robert Device for checking the start of delivery of injection pumps for internal combustion engines
US2979945A (en) * 1957-08-16 1961-04-18 Flightex Fabrics Inc Apparatus for measuring the dead space travel in servo valves
DE3047078A1 (en) * 1980-12-13 1982-07-15 Robert Bosch Gmbh, 7000 Stuttgart METHOD FOR DETERMINING THE START OF DELIVERY IN INJECTION PUMPS
FR2523217A1 (en) * 1982-03-09 1983-09-16 France Etat Engine injection pump port closing detector - uses constant pressure gas supply connected to discharge union by control gate

Also Published As

Publication number Publication date
DE3434867C2 (en) 1991-12-05
EP0177715A2 (en) 1986-04-16
BR8504602A (en) 1986-07-15
DE3434867A1 (en) 1986-04-03
US4665742A (en) 1987-05-19
JPS6179871A (en) 1986-04-23

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Effective date: 19900301

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ABT, JUEGEN, DIPL.-ING. (FH)

Inventor name: HANDTMANN, DIETER, DR. DIPL.-PHYS.

Inventor name: BOLLHAGEN, HEINS

Inventor name: STUMPF, SYBILLE

Inventor name: KUHN, ULRICH, DR. DIPL.-PHYS.