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1. WO2000042312 - VALVE FOR DOSING THE ADMISSION OF VOLATILIZED FUEL

Publication Number WO/2000/042312
Publication Date 20.07.2000
International Application No. PCT/DE1999/003393
International Filing Date 26.10.1999
IPC
F02M 25/08 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
25Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
08adding fuel vapours drawn from engine fuel reservoir
F16K 31/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
31Operating means; Releasing devices
02electric; magnetic
06using a magnet
CPC
F02M 2025/0845
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
25Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
08adding fuel vapours drawn from engine fuel reservoir
0845Electromagnetic valves
F02M 25/0836
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
25Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
08adding fuel vapours drawn from engine fuel reservoir
0836Arrangement of valves controlling the admission of fuel vapour to an engine, e.g. valve being disposed between fuel tank or absorption canister and intake manifold
F16K 31/0658
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
31Actuating devices;; Operating means; Releasing devices
02electric
06using a magnet ; , e.g. diaphragm valves, cutting off by means of a liquid
0644One-way valve
0655Lift valves
0658Armature and valve member being one single element
Y10T 137/8122
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
137Fluid handling
794With means for separating solid material from the fluid
8122Planar strainer normal to flow path
Applicants
  • ROBERT BOSCH GMBH [DE/DE]; Postfach 30 02 20 D-70442 Stuttgart, DE (AllExceptUS)
  • KRIMMER, Erwin [DE/DE]; DE (UsOnly)
  • SCHULZ, Wolfgang [DE/DE]; DE (UsOnly)
  • MIEHLE, Tilman [DE/DE]; DE (UsOnly)
Inventors
  • KRIMMER, Erwin; DE
  • SCHULZ, Wolfgang; DE
  • MIEHLE, Tilman; DE
Priority Data
199 01 090.014.01.1999DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VENTIL ZUM DOSIERTEN EINLEITEN VON VERFLÜCHTIGTEM BRENNSTOFF
(EN) VALVE FOR DOSING THE ADMISSION OF VOLATILIZED FUEL
(FR) VANNE POUR L'ADMISSION DOSEE D'UN CARBURANT VOLATIL
Abstract
(DE)
Ein Magnetventil, insbesondere zur Tankentlüftung bei Kraftfahrzeugen mit wenigstens einer einen Dichtsitz (103) bildenden Ventilöffnung und mit einem zur Freigabe und zum Verschließen des wenigstens einen Dichtsitzes (103) mit diesem zusammenwirkenden, federbelasteten von einem Elektromagneten (13) entgegen der Rückstellkraft einer Rückstellfeder (30) betätigten Ventilglied (20), ist dadurch gekennzeichnet, daß stromabwärts des Ventilglieds (20) ein die Strömung eines Gases drosselndes Strömungselement (70) angeordnet ist, dessen Gestalt an den Öffnungsquerschnitt des mit dem Ventilglied (20) zusammenwirkenden Dichtsitzes (103) zur Bestimmung (Zumessung) der Durchflußmenge des Gases durch den Querschnitt des Strömungselementes (70) bei geöffnetem Magnetventil angepaßt ist, daß die bestimmt (zugemessen) wird, derart, daß die Fläche des Öffnungsquerschnitts des wirksamen Ventilsitzes größer als 2,5 mal, vorzugsweise größer als 9 mal größer ist als die Fläche des wirksamen Querschnitts des Strömungselements (70).
(EN)
The invention relates to a solenoid valve, more particularly, for tank ventilation in motor vehicles, comprising at least one valve opening forming a sealed seat (103) and a valve member (20) for opening and closing the at least one sealed seat (103) and cooperating with the latter, said valve member being spring-loaded by electromagnets against the restoring force of a readjusting spring (30). The invention is characterized in that a flow element (70) throttling the flow of a gas is mounted downstream from the valve member (20), the configuration of said flow element matching the cross section of the opening of the sealed seat (103) that cooperates with the valve member (20) for determining (dosing) the flow rate of the gas through the cross-sectional area of the flow element (70) when the solenoid valve is open in such a way that the surface of the cross section of the opening of the effective valve seat is 2.5 times bigger, preferably more than 9 times bigger, than the surface of the effective cross-sectional area of the flow element (70).
(FR)
Electrovanne, en particulier pour l'élimination d'air dans des réservoirs de véhicules, comprenant au moins une ouverture de vanne formant un siège étanche (103), et un organe de vanne (20) destiné à l'ouverture et à la fermeture d'au moins un siège étanche (103), coopérant avec celui-ci, sollicité élastiquement par un électro-aimant, (13) à l'encontre de la force de rappel d'un ressort de rappel (30), caractérisée en ce qu'il est prévu, en aval de l'organe de vanne (30), un élément d'écoulement (70) étranglant l'écoulement d'un gaz, dont la forme à la section d'ouverture du siège étanche (103) coopérant avec l'organe de vanne (20) est adaptée pour déterminer et doser le débit du gaz à travers la section de l'élément d'écoulement (70) lorsque l'électrovanne est ouverte, de telle façon que l'aire de la section d'ouverture du siège de soupape efficace (103) soit plus de 2,5 fois, de préférence plus de 9 fois plus grande que l'aire de la section efficace de l'élément d'écoulement (70).
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