Patent ID: 11867487
Assignee: nan
Field: Other special machines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 1:
2. A projectile comprising:
a gas channel extending from a gas inlet that is disposed at a trailing end of the projectile to a gas outlet that is disposed at a leading end of the projectile; and
a helical pair comprising a piston that is disposed in the gas channel, the piston comprising a rotor,
the projectile further comprising a first mode, a second mode, and a third mode,
wherein in the first mode, the rotor is rearwardly disposed in the gas channel and is releasably retained,
wherein in the second mode, the rotor rotates synchronously as the rotor translates forward in the gas channel, and
wherein in the third mode, the rotor is forwardly disposed in the gas channel, is supported by an aerodynamic bearing, and spins freely.