Aerospace electrovalve for high-pressure cryogenic gas

摘要

The present application relates to a valve for a cryogenic gas. The valve includes a body with a main inlet, a main outlet, and a main passage. The valve also includes a main shutter for the main passage, the main shutter including an auxiliary inlet, an auxiliary outlet, and an auxiliary passage, in which an auxiliary shutter is arranged, which includes a closing surface configured to close the auxiliary outlet and be able to drive the main shutter in the closing direction, and a drive surface configured to drive the main shutter in the opening direction, while resting on the edge of the auxiliary inlet and blocking the auxiliary inlet partially in order to brake the flow there. The drive surface is formed by drive lugs which are connected to a head of the auxiliary shutter. The lugs form a bayonet coupling between the shutters. The present application also relates to an electrovalve.