Patents by Inventor Nadezhda Konstantinovna Polyanchik

Nadezhda Konstantinovna Polyanchik has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Turbine, for a liquid-propellant rocket engine mainly
    Patent number: 6321528
    Abstract: The invention relates to the field of power machine building and concerns the improvements in turbines for liquid-propellant rocket engines. A turbine includes a casing enclosing a working chamber and a propellant feed passage communicating with the working chamber. A cooling space, and a cooling fluid feed passage also communicate with the cooling space. The turbine also has a turbine wheel to be cooled by a cooling fluid. An annular chamber communicating with an annular slot can allow the cooling fluid to cool the turbine wheel. Also provided is a bush of material having the thermal conductivity higher than that of the casing material, located coaxially to the turbine wheel. The bush is made to have a length longer than that of the turbine wheel. The bush is mounted so that to bulge out of the turbine wheel towards the propellant feed channel. Surfaces of the annular chamber and the annular slot are formed by a surface of the bulging out part of the bush.
    Type: Grant
    Filed: September 9, 1999
    Date of Patent: November 27, 2001
    Assignee: Otkrytoe Aktsionernoe Obschestvo “Nauchno-Proizvodstvennoe Obiedinenie “Energomash” Imeni Akademika V.P. Glushko”
    Inventors: Nadezhda Konstantinovna Polyanchik, Mikhail Ivanovich Prozhiga