PULSE ELECTROMAGNETIC VALVE (VARIANTS) Russian patent published in 2022 - IPC F16K31/02 F16K31/10 

FIELD: electrical engineering.

SUBSTANCE: group of inventions relates to electromagnetic pipeline shut-off valves. The main areas of application are power systems for aerospace engines and devices that prevent explosions of household gas in private and apartment buildings, as well as in industrial premises. Proposed are twelve models of six variants of a direct-action pulse valve. Two models of the first variant illustrate a novel generation of bistable electromagnetic apparatus. Models of the other variants of the valve belong to the family of normally open shutoff valving. However, three of them can be used as normally closed valves as well. The trigger mechanism comprises a spring-loaded latch in the form of a two-position ratchet apparatus or at least one hook. The valve is switched to the "closed" state by a DC pulse or an AC pulse. The valve is retained in this state both by the elasticity of the compressed spring of the locking body and by the pressure of the working medium. Four variants of the proposed apparatus are returned to the "open" state by a DC or AC pulse, and two variants are returned to this state manually.

EFFECT: inventions are aimed at improving the reliability and safety of systems containing electromagnetic shut-off valves.

9 cl, 23 dwg