DEVICE FOR CREATION OF ADJUSTABLE THRUST FORCE IN ELECTRIC ION ENGINE Russian patent published in 2019 - IPC F03H1/00 B64G1/40 

FIELD: rocket equipment.

SUBSTANCE: invention relates to rocket engineering, in particular to electric ion engines equipped with thrust control device due to additional acceleration of ions in high-frequency field. Device for creation of controlled thrust force in electric ion engine comprises gas-discharge chamber, ending with screen electrode, multibeam ion-optical system (IOS) consisting of a series of flat electrodes with spaced apart holes connected in series with gaps and connected to sources of constant accelerating and braking voltage, high-frequency oscillation generator having two high-frequency communication lines. One of the lines (input) includes an input attenuator and is connected by means of an input turn of communication to the input parallel resonant circuit tuned to the operating frequency of the generator F₀ and connected to accelerating and input control electrodes of multibeam IOS installed in input section of device. Second (output) high-frequency line includes phase shifter and is connected by means of output communication turn with output parallel resonant circuit, also tuned to operating frequency of generator F₀ and connected to output control electrode installed in device output section immediately before slowing electrode. Introduced are additional alternating, control and focusing electrodes with drift holes symmetrically separated from each other by screening electrodes; wherein additional control electrodes located in the input section of the device are connected to two additional parallel oscillatory circuits.

EFFECT: using invention provides higher and smoothly controlled speed of ion stream, providing increase in traction force and its adjustment in wide range, and increased durability of the device due to reduced erosion and probability of destruction of electrodes of the ion-optical system (IOS).

1 cl, 4 dwg