GB792775A - Injection process and injection device for internal-combustion engines with fuel injection - Google Patents

Injection process and injection device for internal-combustion engines with fuel injection

Info

Publication number
GB792775A
GB792775A GB11840/55A GB1184055A GB792775A GB 792775 A GB792775 A GB 792775A GB 11840/55 A GB11840/55 A GB 11840/55A GB 1184055 A GB1184055 A GB 1184055A GB 792775 A GB792775 A GB 792775A
Authority
GB
United Kingdom
Prior art keywords
valve
pressure
injection
orifice
fuel
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
GB11840/55A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB792775A publication Critical patent/GB792775A/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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
    • F02M45/08—Injectors peculiar thereto
    • 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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
    • 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
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/107—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive pneumatic drive, e.g. crankcase pressure drive
    • 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
    • F02M2700/00—Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
    • F02M2700/07—Nozzles and injectors with controllable fuel supply
    • F02M2700/075—Injection valve actuated by cylinder pressure or other air pressure for pressurised fuel supply

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

792,775. Fuel injectors. SATZGER E. April 25, 1955 [April 27, 1954], No. 11840/55. Class 7(3) In a fuel injection device arranged to produce preliminary and main injections, the main injection is initiated by the pressure in the combustion space. In Fig. 1 the fuel is supplied to an injection space 5 past a non-return valve 4 and preliminary injection occurs through a fine orifice 6, the main injection orifice 8 being closed by a spring loaded valve 9 which is provided with a recess 12 on which acts the pressure in the combustion space transmitted through the orifice 8. At a predetermined combustion space pressure the valve 9 is lifted off its seat and the main injection through orifice 8 takes place, the valve 9 being maintained,raised for the remainder of the injection cycle by the pressure in chamber 5 acting upon the end of the valve. In a modification the valve 9 is provided with an annular step on which the pressure in space 5, which increases with engine speed, acts to assist the valve 9 to open and to cause the valve 9 to open at a lower combustion space pressure with increasing speed; alternatively the pressure in space 5 may be arranged to assist the spring 11 in loading the valve 9, whereby the valve 9 opens at a higher combustion space pressure with increasing engine speed. The valve 4 is arranged so that on closing it reduces the pressure in the space 5 and prevents drip. In Fig. 5 the preliminary injection takes place through passages 18, 19, in the valve 9<SP>111</SP> which directs the preliminary jet through the main injection orifice 8. In a further modification, Fig. 6, the non-return valve 4 is replaced by a spring-loaded valve 21, concentric with the main valve 9<SP>1v</SP>, which is lifted by fuel pressure before the valve 9<SP>1v</SP> is opened and permits the fuel to reach the preliminary orifice 6. The valve 21 may be arranged to contact a collar 20 on the valve 9<SP>1v</SP> to assist opening of the latter; alternatively the loading spring of the valve 9<SP>1v</SP> may be arranged inside the valve 21 so that the force of the loading spring is reduced as the valve 21 opens, the amount of the reduction varying with the varying lift of the valve 21 at varying engine speed.
GB11840/55A 1954-04-27 1955-04-25 Injection process and injection device for internal-combustion engines with fuel injection Expired GB792775A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT792775X 1954-04-27

Publications (1)

Publication Number Publication Date
GB792775A true GB792775A (en) 1958-04-02

Family

ID=3681019

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11840/55A Expired GB792775A (en) 1954-04-27 1955-04-25 Injection process and injection device for internal-combustion engines with fuel injection

Country Status (1)

Country Link
GB (1) GB792775A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3446440A (en) * 1967-06-14 1969-05-27 Int Harvester Co Double injection system with one nozzle
US4201160A (en) * 1977-06-09 1980-05-06 Lucas Industries Limited Fuel injection systems
US4215821A (en) * 1977-03-16 1980-08-05 Robert Bosch Gmbh Fuel injection nozzle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3446440A (en) * 1967-06-14 1969-05-27 Int Harvester Co Double injection system with one nozzle
US4215821A (en) * 1977-03-16 1980-08-05 Robert Bosch Gmbh Fuel injection nozzle
US4201160A (en) * 1977-06-09 1980-05-06 Lucas Industries Limited Fuel injection systems

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