FLUID DISTRIBUTION AND REGULATION VALVE AND SYSTEM FOR SUPPLYING GAS DERIVED FROM TWO SOURCES COMPRISING SAME

摘要

The invention concerns a valve wherein the valve spool (1) provides selective communications between inner zones (3 5) in the valve body (C) and is mobile between extreme left and right positions under the control of an electric servomotor whereof the spindle (10), connected to the valve spool through a connecting rod assembly (11, 14) whereof the connecting rod (11) is configured to have an abutting ridge (15) co-operating with the spindle (10) in an extreme position (13<SB>III</SB>) countering the action of the return spring (6) thus allowing a mono- and/or bistable operation of the valve. The invention is applicable to onboard systems for supplying breathing mixture to an aircraft occupant.