SANDWICH BALL SHELL Russian patent published in 2013 - IPC B60K15/03 B60K15/73 B65D88/04 

FIELD: process engineering.

SUBSTANCE: invention relates to machine building and may be used in space and aircraft engineering, chemical industry, etc. Proposed shell consists of spaced apart concentric inner and outer ball shells 1, 2 interconnected by three ball shells 3, 4, 5 arranged in space between shells 1, 2. Mid ball shell 3 covers shell 2 so that its mid spherical layer dividing shell 3 over thickness into halves contacts mid spherical layers of shell 1, 2 in diametrically opposite points. Second ball shell 4 is arranged in space between shells 3, 4 so the its mid spherical layer contacts mid spherical layers of shells 3, 4 the their contact points. Third ball shell 5 is arranged in space between shells 3, 1 so the its mid spherical layer contacts mid spherical layers of shells 3, 1 the their contact points.

EFFECT: higher stiffness and strength, expended applications.

3 cl, 2 dwg