LIQUID-PROPELLANT ENGINE Russian patent published in 2012 - IPC F02K9/95 F02K9/48 

FIELD: engines and pumps.

SUBSTANCE: liquid-propellant engine consists of control system with onboard computer and electric power supply, gas generator connected via a gas line to combustion chamber, and turbo-pump unit containing in its turn the pumps of oxidiser, fuel, and starting turbine, as well as air bottle connected via high pressure pipeline through a valve to the starting turbine, and ignition devices on combustion chamber and gas generator; according to the invention, at least two groups of ignition devices are installed on combustion chamber and two of them are installed on gas generator; at that, number of groups on combustion chamber and on gas generator is the same; control system is provided with switching devices the number of which corresponds to the number of groups of ignition devices, which are connected through electric connections to the onboard computer on one side, and to groups of ignition devices on the other side; at least one external high pressure air bottle is connected to the starting turbine through quick-detachable connection and non-return valve via external pipeline containing an external valve. Liquid-propellant engine can contain at least one additional high pressure air bottle connected by means of additional high pressure pipeline to the starting turbine. Liquid-propellant engine can contain central hinge made on gas line on combustion chamber axis. Liquid-propellant engine can contain a cylindrical hinge that is made in the form of a cylinder. Central hinge can be spherical. LPE can contain GLONASS system receiver connected through an electrical connection to the onboard computer. LPE can contain receiving-transmitting device connected through an electrical connection to the onboard computer. LPE can contain turbo-pump unit shaft rotating speed sensor connected through an electrical connection to the onboard computer.

EFFECT: multiple LPE startup.

8 cl, 5 dwg