MULTI-STAGE MISSILE AND METHOD OF SEPARATING USED PARTS Russian patent published in 2019 - IPC F42B15/00 

FIELD: rocket equipment.

SUBSTANCE: invention relates to rocket engineering, particularly, to multi-stage missiles, and can be used in rocket production. Multistage rocket comprises body, head fairing. Thereafter, at least one segment containing the fuel and oxidizer tank is arranged in series along the longitudinal axis of the missile. Segment is divided along longitudinal axis into proportional parts and is configured to separate each segment from rocket and its separation into parts. There is also compartment for payload, fuel compartment adjoining rocket engines. At the same time at least one additional acceleration stage adjoins lengthwise and/or transversally to rocket longitudinal axis to rocket engines. It contains oxidizer tanks, fuel tanks and rocket engines with possibility to consume fuel from segments. Fuel tanks in part of segments contain on inner side web of elastic material and/or fuel tanks contain at least one elastic fuel tank, changing its volume as it is filled. Elastic fuel tank comprises attachment with fuel tank via intake device with possibility of fuel pumping from fuel tank. Tanks are connected by pipelines into a single system so that they can be pumped from a certain tank with valve opening and closing devices. At that it is possible to arrange residual fuel mass at incomplete fuel pumping with part of elastic fuel tank.

EFFECT: increased efficiency of rocket operation due to possibility of separation of spent fuel tanks without separation of rocket engines and isolation of residual quantity of fuel mass.

8 cl, 4 dwg