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1. US20210199139 - SERVO VALVE UNIT AND APPARATUS

Office
États-Unis d'Amérique
Numéro de la demande 17057857
Date de la demande 10.01.2020
Numéro de publication 20210199139
Date de publication 01.07.2021
Type de publication A1
CIB
F15B 9/03
FMÉCANIQUE; ÉCLAIRAGE; CHAUFFAGE; ARMEMENT; SAUTAGE
15DISPOSITIFS DE MANŒUVRE À PRESSION DE FLUIDE; HYDRAULIQUE OU TECHNIQUE PNEUMATIQUE EN GÉNÉRAL
BSYSTÈMES FONCTIONNANT AU MOYEN DE FLUIDES EN GÉNÉRAL; DISPOSITIFS DE MANŒUVRE FONCTIONNANT PAR PRESSION DE FLUIDE, p.ex. SERVOMOTEURS; PARTIES CONSTITUTIVES OU AMÉNAGEMENTS DES SYSTÈMES À PRESSION DE FLUIDE, NON PRÉVUS AILLEURS
9Servomoteurs à asservissement, c. à d. dans lesquels la position de l'organe commandé correspond à celle de l'organe qui commande
02les servomoteurs étant du type à mouvement possible alternatif ou oscillant
03avec moyens de commande électriques
F16K 31/42
FMÉCANIQUE; ÉCLAIRAGE; CHAUFFAGE; ARMEMENT; SAUTAGE
16ÉLÉMENTS OU ENSEMBLES DE TECHNOLOGIE; MESURES GÉNÉRALES POUR ASSURER LE BON FONCTIONNEMENT DES MACHINES OU INSTALLATIONS; ISOLATION THERMIQUE EN GÉNÉRAL
KSOUPAPES; ROBINETS; VANNES; COMMANDES À FLOTTEURS; DISPOSITIFS POUR VENTILER OU AÉRER
31Moyens de fonctionnement; Dispositifs de retour à la position de repos
12actionnés par un fluide
42et au moyen d'organes actionnés électriquement dans les canalisations d'entrée ou de refoulement du moteur à fluide
F15B 9/09
FMÉCANIQUE; ÉCLAIRAGE; CHAUFFAGE; ARMEMENT; SAUTAGE
15DISPOSITIFS DE MANŒUVRE À PRESSION DE FLUIDE; HYDRAULIQUE OU TECHNIQUE PNEUMATIQUE EN GÉNÉRAL
BSYSTÈMES FONCTIONNANT AU MOYEN DE FLUIDES EN GÉNÉRAL; DISPOSITIFS DE MANŒUVRE FONCTIONNANT PAR PRESSION DE FLUIDE, p.ex. SERVOMOTEURS; PARTIES CONSTITUTIVES OU AMÉNAGEMENTS DES SYSTÈMES À PRESSION DE FLUIDE, NON PRÉVUS AILLEURS
9Servomoteurs à asservissement, c. à d. dans lesquels la position de l'organe commandé correspond à celle de l'organe qui commande
02les servomoteurs étant du type à mouvement possible alternatif ou oscillant
08commandés par des clapets agissant sur l'alimentation de fluide ou sur l'orifice de sortie du fluide du servomoteur
09avec moyens de commande électriques
CPC
F15B 9/09
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
9Servomotors with follow-up action, ; e.g. obtained by feed-back control,; i.e. in which the position of the actuated member conforms with that of the controlling member
02with servomotors of the reciprocatable or oscillatable type
08controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
09with electrical control means
F15B 9/03
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
9Servomotors with follow-up action, ; e.g. obtained by feed-back control,; i.e. in which the position of the actuated member conforms with that of the controlling member
02with servomotors of the reciprocatable or oscillatable type
03with electrical control means
F16K 31/42
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
12actuated by fluid
42by means of electrically-actuated members in the supply or discharge conduits of the fluid motor
Déposants EISHIN TECHNOLOGY CO., LTD
Inventeurs Chikanari Kubo
Données relatives à la priorité PCT/JP2019/002971 29.01.2019 JP
Titre
(EN) SERVO VALVE UNIT AND APPARATUS
Abrégé
(EN)

A servo valve unit capable of precisely controlling the position of a pneumatic cylinder that does not require a servo amplifier and a small sized and/or high durability servo valve unit are disclosed. The servo valve unit comprises a unit body having a first end portion and a second end portion, a first valve portion, a second valve portion, a first seal member that opens and closes the first valve portion, a second seal member that opens and closes the second valve portion, a first drive mechanism that drives the first seal member by a first electric pulse, a second seal member that drives the second seal member by a second electric pulse, a supply flow path that extends between the first end and the first valve, an exhaust flow path that extends between the second end and the second valve, a common flow path connected to the supply flow path and the exhaust flow path via the first valve portion and the second valve portion, and a drive flow path connected to the pneumatic actuator. The first drive mechanism and the second drive mechanism are arranged in a drive mechanism arrangement portion located between the first end portion and the second end portion. The drive air flow path can branch from a branch portion located between the drive mechanism arrangement portion and the first end portion and extends to the first end portion. Alternatively drive air flow path can branch from the common flow path from a branch portion located between the drive mechanism arrangement portion and the second end portion and extends to the second end portion.