NON-TIGHT INSTRUMENT COMPARTMENT OF SPACECRAFT Russian patent published in 2019 - IPC B64G1/22 

FIELD: astronautics.

SUBSTANCE: invention relates to onboard systems of spacecrafts. Non-tight instrument compartment (NTIC) SC is made of honeycomb panels with technological (TO) and ventilation (VO) openings. VO of labyrinth type are used for removal of gas release products of nonmetallic elements from NTIC and leaks of working bodies. Total area of VO provides reduction of gas pressure in NTIC to permissible level. Gaps between the honeycomb panels and between the TO and the elements passing through them, as well as VO outside, are screened to ensure electric sealing of the NTIC. Inside the VO there is a cellular filler preventing electromagnetic field penetration through the VO.

EFFECT: improved protection of on-board equipment in NTIC from electromagnetic radiation, action of different charged particles and low pressure inside NTIC at flight operation stage of spacecraft.

1 cl, 3 dwg