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GB898238A - Improvements relating to the testing of the timing of fuel injection systems of internal combustion engines - Google Patents

Improvements relating to the testing of the timing of fuel injection systems of internal combustion engines

Info

Publication number
GB898238A
GB898238A GB2625/61A GB262561A GB898238A GB 898238 A GB898238 A GB 898238A GB 2625/61 A GB2625/61 A GB 2625/61A GB 262561 A GB262561 A GB 262561A GB 898238 A GB898238 A GB 898238A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
coil
testing
pressure
injection
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
Application number
GB2625/61A
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.)
Daimler Benz AG
Original Assignee
Daimler Benz 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
Priority claimed from DES50566A external-priority patent/DE1028237B/en
Application filed by Daimler Benz AG filed Critical Daimler Benz AG
Publication of GB898238A publication Critical patent/GB898238A/en
Expired 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
    • F02M65/003—Measuring variation of fuel pressure in high pressure line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/32—Controlling fuel injection of the low pressure type
    • F02D41/36—Controlling fuel injection of the low pressure type with means for controlling distribution
    • F02D41/365—Controlling fuel injection of the low pressure type with means for controlling distribution with means for controlling timing and distribution

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rectifiers (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

898,238. Testing fuel injectors. DAIMLERBENZ A.G. Jan. 23, 1961 [Jan. 21, 1960], No. 2625/61. Class 7(3). A device for .testing fuel-injection timing comprises a pressure responsive device 4, located in the supply pipe 11 to an injector, which converts the pressure rise on injection directly into an electrical impulse controlling a stroboscopic device S. The device 4 comprises a diaphragm 1 situated a small distance x from an iron core 5 inside an inductive winding 6, the core 5 having a magnet 8 at its upper end. The winding 6 is connected to an amplifier V. When the pressure in pipe 11 rises for injection, the diaphragm 1 reduces the gap x, reducing the flux in coil 6 and producing an electrical impulse which is amplified to cause the stroboscopic device S to flash the injection timing being read off a graduated engine-driven disc illuminated by the lamp. The inductive device 4 may be replaced by a capacitative device in which the operation of the diaphragm 1 varies a capacitance by moving two plates or plungers relative to one another; alternatively the diaphragm may produce modulation of a carrier frequency in the coil 6 by moving a core attached thereto within the coil. The pressure responsive device may alternatively comprise a pressure responsive quartz crystal.
GB2625/61A 1956-09-27 1961-01-23 Improvements relating to the testing of the timing of fuel injection systems of internal combustion engines Expired GB898238A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DES50566A DE1028237B (en) 1956-09-27 1956-09-27 Circuit arrangement for increasing the voltage sensitivity of electromagnetic relays
DED0032394 1960-01-21

Publications (1)

Publication Number Publication Date
GB898238A true GB898238A (en) 1962-06-06

Family

ID=31979345

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2625/61A Expired GB898238A (en) 1956-09-27 1961-01-23 Improvements relating to the testing of the timing of fuel injection systems of internal combustion engines

Country Status (5)

Country Link
US (1) US2987654A (en)
BE (1) BE561146A (en)
CH (1) CH352391A (en)
FR (1) FR1187012A (en)
GB (1) GB898238A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2320536A1 (en) * 1975-08-08 1977-03-04 Sv Sarl Metro Mesures Piezoelectric crystal pressure transducer for tubes - has crystal held by clamp to determine pressure fluctuation in tubes attached to engine
US4362050A (en) * 1979-08-10 1982-12-07 Robert Bosch Gmbh Fuel injection nozzle for internal combustion engines
US4394823A (en) * 1980-10-30 1983-07-26 Robert Bosch Gmbh Electrical signal generating fuel injection valve

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3133239A (en) * 1960-04-07 1964-05-12 Hertner Electric Company Temperature compensated controlled relay
US3168682A (en) * 1961-02-10 1965-02-02 Aston L Moore Supervisory system
US3213329A (en) * 1963-04-30 1965-10-19 Gen Electric Temperature sensor system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2693572A (en) * 1953-03-31 1954-11-02 Bell Telephone Labor Inc Current and voltage regulation
US2769131A (en) * 1953-10-30 1956-10-30 Westinghouse Electric Corp Motor acceleration system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2320536A1 (en) * 1975-08-08 1977-03-04 Sv Sarl Metro Mesures Piezoelectric crystal pressure transducer for tubes - has crystal held by clamp to determine pressure fluctuation in tubes attached to engine
US4362050A (en) * 1979-08-10 1982-12-07 Robert Bosch Gmbh Fuel injection nozzle for internal combustion engines
US4394823A (en) * 1980-10-30 1983-07-26 Robert Bosch Gmbh Electrical signal generating fuel injection valve

Also Published As

Publication number Publication date
FR1187012A (en) 1959-09-04
BE561146A (en)
US2987654A (en) 1961-06-06
CH352391A (en) 1961-02-28

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