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Publication of BE710539ApublicationCriticalpatent/BE710539A/xx
F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F01D17/00—Regulating or controlling by varying flow
F01D17/10—Final actuators
F01D17/12—Final actuators arranged in stator parts
F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
F01D17/141—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path
F01D17/143—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path the shiftable member being a wall, or part thereof of a radial diffuser
F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F04D—NON-POSITIVE-DISPLACEMENT PUMPS
F04D29/00—Details, component parts, or accessories
F04D29/40—Casings; Connections of working fluid
F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
F04D29/44—Fluid-guiding means, e.g. diffusers
F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps
F04D29/464—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps adjusting flow cross-section, otherwise than by using adjustable stator blades