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1. (WO1979000896) SERVO-CONTROLLED VALVE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1979/000896 International Application No.: PCT/CH1979/000052
Publication Date: 15.11.1979 International Filing Date: 05.04.1979
IPC:
F16K 31/385 (2006.01) ,F16K 31/40 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
K
VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
31
Operating means; Releasing devices
12
actuated by fluid
36
in which fluid from the conduit is constantly supplied to the fluid motor
38
in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side
385
the fluid acting on a diaphragm
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
K
VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
31
Operating means; Releasing devices
12
actuated by fluid
36
in which fluid from the conduit is constantly supplied to the fluid motor
40
with electrically-actuated member in the discharge of the motor
Applicants:
Inventors:
Priority Data:
3693/7806.04.1978CH
Title (EN) SERVO-CONTROLLED VALVE
(FR) VALVE A SERVO-COMMANDE
Abstract:
(EN) Servo-controlled valve comprising a seat (5) and a flap (6) mounted in a valve-body (1). The displacements of the flap (6) are caused by the pressure prevailing in the control chamber (7). The inlet of pressure fluids into this chamber (7) is effected through passages (22) which open facing the upstream edge of the seat (5) with respect to the direction of the flow of the fluid, near the smaller section of the fluid passage for all the possible positions of the flap relative to the seat (5)
(FR) Une valve a servo-commande, comprenant un siege (5) et un clapet (6) montes dans un corps de valve (1). Les deplacements du clapet (6) sont provoques par la pression regnant dans la chambre de commande (7). L"amenee de fluide sous pression dans cette chambre (7) se fait par des passages (22) s"ouvrant en regard du bord amont du siege (5) par rapport au sens d"ecoulement du fluide, a proximite de la plus petite section de passage du fluide pour toutes les positions possibles du clapet par rapport au siege (5).
Designated States:
Publication Language: German (DE)
Filing Language: German (DE)
Also published as:
US4351509