LIQUID-PROPELLANT ENGINE ANNULAR CHAMBER Russian patent published in 2010 - IPC F02K9/64 

FIELD: engines and pumps.

SUBSTANCE: invention refers to rocket engine building industry and can be used during development of alternator-free liquid propellant engines operating on cryogenic components, e.g. oxygen and hydrogen. Annular chamber of liquid-propellant engine includes annular mixing head, regeneratively cooled annular combustion chamber with plate nozzle of external expansion, and shaped central body, which are formed with shaped internal and external covers attached to each other along cooling circuit ribs. Between ribs of cooling circuit there are hollow connection straps attaching tops of ribs to each other; at that, external profile of the above connection straps corresponds to profile of cooling circuit. In order to increase the cover stability, connection straps attach the tops of two adjacent ribs to each other, connection straps attach the tops of all ribs to each other so that common annular surface is formed, and the external profile of which is equally spaced relative to internal profile of external cover at point of contact with external surface of internal cover.

EFFECT: increasing stability of internal cover.

3 cl, 3 dwg