JPS57163152A - Valve opening pressure measuring method and device for two stage valve opening pressure type fuel injection valve - Google Patents

Valve opening pressure measuring method and device for two stage valve opening pressure type fuel injection valve

Info

Publication number
JPS57163152A
JPS57163152A JP4751581A JP4751581A JPS57163152A JP S57163152 A JPS57163152 A JP S57163152A JP 4751581 A JP4751581 A JP 4751581A JP 4751581 A JP4751581 A JP 4751581A JP S57163152 A JPS57163152 A JP S57163152A
Authority
JP
Japan
Prior art keywords
valve opening
opening pressure
valve
fuel injection
pressure
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
JP4751581A
Other languages
Japanese (ja)
Other versions
JPS6211180B2 (en
Inventor
Toshiaki Asami
Fujio Aoki
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.)
Bosch Corp
Original Assignee
Diesel Kiki Co Ltd
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 Diesel Kiki Co Ltd filed Critical Diesel Kiki Co Ltd
Priority to JP4751581A priority Critical patent/JPS57163152A/en
Publication of JPS57163152A publication Critical patent/JPS57163152A/en
Publication of JPS6211180B2 publication Critical patent/JPS6211180B2/ja
Granted 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

Landscapes

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

Abstract

PURPOSE:To measure the valve opening pressure upon a main injection at a position where the needle valve therefor is lifted up easily by a method wherein a gauge is provided in the two stage valve opening presure type fuel injection valve. CONSTITUTION:A fuel injection valve 21, regulated in the valve opening pressure upon the initial injection thereof beforehand, is mounted on the adaptor thereof and the injection pipe 46 of a nozzle tester is connected to the fuel passage of the fuel injection valve. A contacting rod 32 connected to a dial gauge is abutted against the surface of the seat of a spring for a second push rod 11. A regulating screw member 10 is rotated to make a gap DELTAl between the upper end surface of a first push rod 5 and the tip end of the second push rod 11 zero. At this position, the dial gauge is also adjusted to zero. Subsequently, the regulating screw 10 is rotated into the reverse direction to adjust it to DELTAl, thereafter, the regulating screw 10 is locked. The position of the needle valve which is lifted up is determined by these operations, subsequently, the pressurized oil of the nozzle tester 40 is supplied to a pressurizing space 2b, a pressure when the indicator of the dial gauge 31 is begun to move is read by a pressure gauge 44 and the pressure is regulated so that it will become to the predetermined valve opening pressure upon the main injection.
JP4751581A 1981-03-31 1981-03-31 Valve opening pressure measuring method and device for two stage valve opening pressure type fuel injection valve Granted JPS57163152A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4751581A JPS57163152A (en) 1981-03-31 1981-03-31 Valve opening pressure measuring method and device for two stage valve opening pressure type fuel injection valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4751581A JPS57163152A (en) 1981-03-31 1981-03-31 Valve opening pressure measuring method and device for two stage valve opening pressure type fuel injection valve

Publications (2)

Publication Number Publication Date
JPS57163152A true JPS57163152A (en) 1982-10-07
JPS6211180B2 JPS6211180B2 (en) 1987-03-11

Family

ID=12777241

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4751581A Granted JPS57163152A (en) 1981-03-31 1981-03-31 Valve opening pressure measuring method and device for two stage valve opening pressure type fuel injection valve

Country Status (1)

Country Link
JP (1) JPS57163152A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3825832A1 (en) * 1988-07-29 1990-02-01 Bosch Gmbh Robert Method for checking the second opening pressure of a double spring nozzle-and-holder assembly
KR20030015458A (en) * 2001-08-14 2003-02-25 현대자동차주식회사 Nozzle free lift determination method of fuel injection valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3825832A1 (en) * 1988-07-29 1990-02-01 Bosch Gmbh Robert Method for checking the second opening pressure of a double spring nozzle-and-holder assembly
KR20030015458A (en) * 2001-08-14 2003-02-25 현대자동차주식회사 Nozzle free lift determination method of fuel injection valve

Also Published As

Publication number Publication date
JPS6211180B2 (en) 1987-03-11

Similar Documents

Publication Publication Date Title
US2408672A (en) Apparatus for measuring or checking transverse dimensions
US2642670A (en) Gauge
DE1227669B (en) Pneumatic measuring device
JPS57163152A (en) Valve opening pressure measuring method and device for two stage valve opening pressure type fuel injection valve
US2691827A (en) Adjustable orifice unit
JPS57146974A (en) Test device for spring safety valve
GB1263099A (en) Pressure regulator
US3716922A (en) Gauging method and apparatus for diesel injector nozzles
US4058901A (en) Plug gage
GB1123278A (en) A pressure indicator
US4524613A (en) Adjusting device for adjusting initial injection lift of a double injection type fuel injection valve
EP0291224A2 (en) Fuel injection nozzles
US3117444A (en) Injection nozzle tester
US2831263A (en) Gauging device
US2556564A (en) Gauge for measuring thread truncations
US4170072A (en) Fuel injector adjustment fixture
US2446632A (en) Air pressure gauge
GB704290A (en) A method for testing the mechanical strength of coal and a device for carrying out the method
US2667065A (en) Device for testing the hardness of metals
US2880518A (en) Instrument for measuring internal taper threads
GB1416776A (en) Devices for aligning a point on a workpiece relative to a central axis of a tool holder
SU1432387A2 (en) Apparatus for analyzing free gas content in separated petroleum
DE1096620B (en) Pneumatic measuring device
KR102165653B1 (en) Valve measuring equipment
JPH0346357Y2 (en)