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1. WO1996006281 - FUEL INJECTOR HAVING IMPROVED PARALLELISM OF IMPACTING ARMATURE SURFACE TO IMPACTED STOP SURFACE

Publication Number WO/1996/006281
Publication Date 29.02.1996
International Application No. PCT/US1995/010106
International Filing Date 09.08.1995
Chapter 2 Demand Filed 20.02.1996
IPC
F02M 51/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
51Fuel-injection apparatus characterised by being operated electrically
06Injectors peculiar thereto
F02M 61/16 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
61Fuel injectors not provided for in groups F02M39/-F02M57/94
16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02-F02M61/14132
CPC
F02M 51/0664
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
51Fuel-injection apparatus characterised by being operated electrically
06Injectors peculiar thereto ; with means directly operating the valve needle
061using electromagnetic operating means
0625characterised by arrangement of mobile armatures
0664having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
F02M 51/0671
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
51Fuel-injection apparatus characterised by being operated electrically
06Injectors peculiar thereto ; with means directly operating the valve needle
061using electromagnetic operating means
0625characterised by arrangement of mobile armatures
0664having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
0671the armature having an elongated valve body attached thereto
F02M 61/168
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
61Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
168Assembling; Disassembling; Manufacturing; Adjusting
Applicants
  • SIEMENS AUTOMOTIVE CORPORATION [US/US]; 2400 Executive Hills Drive Auburn Hills, MI 48326-2980, US
Inventors
  • HALL, Bryan, C.; US
  • WILDESON, Ray, T.; US
  • WIECZOREK, David, P.; US
  • WYANT, Gordon, H.; US
  • NALLY, Debora, E.; US
Agents
  • WELLS, Russel, C.; Siemens Corporation 2400 Executive Hills Drive Auburn Hills, MI 48326-2980, US
  • FUCHS, Franz-Josef; P.O. Box 22 13 17 D-80503 Munich, DE
Priority Data
08/292,45418.08.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) FUEL INJECTOR HAVING IMPROVED PARALLELISM OF IMPACTING ARMATURE SURFACE TO IMPACTED STOP SURFACE
(FR) INJECTEUR DE CARBURANT PRESENTANT UN MEILLEUR PARALLELISME ENTRE LA SURFACE PERCUTANTE DE L'INDUIT ET LA SURFACE D'ARRÊT PERCUTEE
Abstract
(EN)
A non-ferromagnetic member (26) is disposed between, and joined to, a ferromagnetic fuel inlet tube (12) and a ferromagnetic valve body (28) structure. The valve body structure is fitted to the non-ferromagnetic member by telescoping the upper axial end of the valve body structure over the outer diameter of the lower end of the non-ferromagnetic member and by guiding the armature (22) on a cylindrical guide surface (75) in a bore of the valve body structure at a location that is axially below the axial location where the upper end of the valve body structure and the lower end of the non-ferromagnetic member (26) telescopically engage. For given part tolerances and given tolerances in tooling that is used to assemble the parts, closer tolerance in parallelism of the impacting armature end surface to the impacted fuel inlet tube end surface is obtained.
(FR)
Élément non ferromagnétique (26) placé entre une tubulure ferromagnétique d'arrivée de carburant (12) et une structure de corps de soupape ferromagnétique (28) auxquels il est relié. La structure du corps de soupape est montée sur l'élément non ferromagnétique en faisant coulisser de manière télescopique son extrémité supérieure axiale sur le diamètre extérieur de l'extrémité inférieure de l'élément non ferromagnétique, et en guidant l'induit (22) sur la surface guide cylindrique (75) d'un alésage pratiqué dans la structure du corps de soupape, au niveau d'un endroit situé axialement sous le point axial où s'emboîtent de manière télescopique l'extrémité supérieure de la structure du corps de soupape et l'extrémité inférieure de l'élément non ferromagnétique (26). Compte tenu des tolérances existantes sur les pièces et sur l'outillage, on obtient ainsi des tolérances plus étroites sur le parallélisme entre la surface terminale percutante de l'induit et la surface terminale percutée de la tubulure d'arrivée.
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