Patents Assigned to Pivotal Space, Inc.
  • Afterburning turbine exhaust cycle (ABTEC)
    Patent number: 11976614
    Abstract: A rocket propulsion system that may include a supersonic rocket nozzle with a supersonic divergent section, and a heat transfer system configured to transfer heat from the supersonic rocket nozzle to a propellant where a portion of the propellant may be selectively injected, combusted, and expanded in the supersonic nozzle generating an additional thrust. In examples, the heated propellant may be used to power a pump system to feed the rocket engine.
    Type: Grant
    Filed: August 28, 2023
    Date of Patent: May 7, 2024
    Assignee: Pivotal Space, Inc.
    Inventor: Lloyd J Droppers
  • Dual mode rocket engine with bipropellant injection in the nozzle
    Patent number: 11976613
    Abstract: A rocket propulsion system that may include a supersonic rocket nozzle with a supersonic divergent section, and a heat transfer system configured to transfer heat from the supersonic rocket nozzle to a propellant where a portion of the propellant may be selectively injected, combusted, and expanded in the supersonic nozzle generating an additional thrust. In examples, the heated propellant may be used to power a pump system to feed the rocket engine.
    Type: Grant
    Filed: August 28, 2023
    Date of Patent: May 7, 2024
    Assignee: Pivotal Space, Inc.
    Inventor: Lloyd J. Droppers