GB726248A - Improvements in fuel injection valves for internal combustion engines - Google Patents

Improvements in fuel injection valves for internal combustion engines

Info

Publication number
GB726248A
GB726248A GB8986/53A GB898653A GB726248A GB 726248 A GB726248 A GB 726248A GB 8986/53 A GB8986/53 A GB 8986/53A GB 898653 A GB898653 A GB 898653A GB 726248 A GB726248 A GB 726248A
Authority
GB
United Kingdom
Prior art keywords
angle
degrees
angles
valve
conical
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
GB8986/53A
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 GB726248A publication Critical patent/GB726248A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for

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

726,248. Fuel injectors. BOSCH GES., R. April 1, 1953 [April 12, 1952], No. 8986/53. Class 7 (3). A fuel pressure operated needle valve 2 has conical surfaces at its end resting on conical surfaces in the injector body 1, the conical angles a and # of the conical surfaces of the body and valve upstream of the actual contact area differing by less than 20 degrees and the angles # and γ of the corresponding surfaces downstream of the contact area differing by 0À5 degrees to 4 degrees. In Fig. 1 the valve and body have line contact and the difference between the angles α and # is 10 degrees, the angle # being equal to the angle α. In a modification, Fig. 2, the valve and body have contact over a conical area of height h and the valve body is provided with a third conical portion of angle # which is 3 degrees greater than the angle α, the angle # being preferably 2 degrees greater than the angle y. In further modifications the angles a and # differ whilst the angles # and # are equal. The fuel is sprayed through injection orifices 4 but the invention is also applicable to injectors having an annular spraying orifice formed between the injector body and a pin carried on the end of the needle valve.
GB8986/53A 1952-04-12 1953-04-01 Improvements in fuel injection valves for internal combustion engines Expired GB726248A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE726248X 1952-04-12

Publications (1)

Publication Number Publication Date
GB726248A true GB726248A (en) 1955-03-16

Family

ID=6635173

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8986/53A Expired GB726248A (en) 1952-04-12 1953-04-01 Improvements in fuel injection valves for internal combustion engines

Country Status (1)

Country Link
GB (1) GB726248A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2029508A (en) * 1978-09-08 1980-03-19 Bendix Corp Fuel injector valve with contoured flow nozzle
US4417694A (en) * 1980-10-22 1983-11-29 The Bendix Corporation Injector valve with contoured valve seat and needle valve interface
US4693424A (en) * 1985-07-15 1987-09-15 General Motors Corporation Poppet covered orifice fuel injection nozzle
WO2003054384A1 (en) * 2001-12-08 2003-07-03 Robert Bosch Gmbh Fuel-injection device, fuel system and internal combustion engine
WO2004040124A1 (en) * 2002-10-22 2004-05-13 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
WO2005026526A1 (en) * 2003-09-09 2005-03-24 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
CN114483403A (en) * 2022-01-24 2022-05-13 宁波兴马油嘴油泵有限公司 Oil nozzle detection method and system, storage medium and intelligent terminal

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2029508A (en) * 1978-09-08 1980-03-19 Bendix Corp Fuel injector valve with contoured flow nozzle
GB2029508B (en) * 1978-09-08 1983-03-30 Bendix Corp Injector valve with contoured valve seat and needle valve interface
US4417694A (en) * 1980-10-22 1983-11-29 The Bendix Corporation Injector valve with contoured valve seat and needle valve interface
US4693424A (en) * 1985-07-15 1987-09-15 General Motors Corporation Poppet covered orifice fuel injection nozzle
WO2003054384A1 (en) * 2001-12-08 2003-07-03 Robert Bosch Gmbh Fuel-injection device, fuel system and internal combustion engine
WO2004040124A1 (en) * 2002-10-22 2004-05-13 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
US7077340B2 (en) 2002-10-22 2006-07-18 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
CN100379979C (en) * 2002-10-22 2008-04-09 罗伯特·博世有限公司 Fuel injection valve for internal combustion engines
WO2005026526A1 (en) * 2003-09-09 2005-03-24 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
CN114483403A (en) * 2022-01-24 2022-05-13 宁波兴马油嘴油泵有限公司 Oil nozzle detection method and system, storage medium and intelligent terminal
CN114483403B (en) * 2022-01-24 2023-02-24 宁波兴马油嘴油泵有限公司 Oil nozzle detection method and system, storage medium and intelligent terminal

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