LOW-THRUST ROCKET ENGINES UNIT Russian patent published in 2016 - IPC F02K9/62 

FIELD: rocket construction.

SUBSTANCE: invention relates to low-thrust rocket engines intended to control spacecraft positions. Rocket engines unit includes a mixing head, fuel supply valves with shutoff members, a seat, a disc and a power drive, mixing elements with inlet channels, combustion chambers, at least two. According to the invention in the head there are collectors of fuel components supply in the form of dead-end cavities, herewith each of the headers of fuel components supply is connected on one side with the fuel storage system, e.g. with fuel tanks, and on the other side it is connected by a system of channels with appropriate combustion chamber via appropriate valves of fuel supply and mixing elements, herewith shutoff elements and the system of channels are arranged directly in the mixing head. Fuel supply valves shutoff elements are made in cylindrical recesses of the mixing head, their inlet channels are connected to the corresponding fuel supply collector, while their outlet channels are connected with inlet channels of mixing elements, herewith seats of the shutoff elements are made coaxially to cylindrical recesses in their bottom part, and plates of the locking elements are installed movably, on one side in the cylindrical recesses of the mixing head, on the other side - in power drives of the fuel supply valves. Combustion chambers, power drives of the fuel supply valves and injector elements are tightly connected with the mixing head through detachable or permanent connections. In the mixing head there can be made additional channels connecting the fuel components supply collectors via tight detachable or permanent connections and pipelines with other fuel consumers, for example, engines of the stabilization system.

EFFECT: invention provides reduced weight of the unit, higher reliability, as well as the use of the channels in the mixing head as part of the fuel line for external consumers.

4 cl, 3 dwg