Eaton Corporation

Aaron Michael Hicks

Alaa AbdelAzim Elmoursi

Robert Milner

Dong Zhu

Clifton Baxter Higdon

Kyle S Jansson

Earl Eugene Daugherty

Lyudmila Mikhaylovna Solovyeva

Kamel Abdel-Khalik Elagamy

A fluid device includes a displacement assembly and a balance plate assembly disposed adjacent to the displacement assembly. The displacement assembly includes a ring and a rotor disposed in a bore of the ring. The ring and rotor cooperatively define a plurality of volume chambers. The balance plate assembly includes a housing that defines a cavity. A balance plate is disposed in the cavity. The balance plate includes a first end surface and an oppositely disposed second end surface. The balance plate is adapted to move axially between a first position in which the second end surface of balance plate abuts a first end face of the ring to a second position in which the second surface of the balance plate is recessed in the cavity.

Balance plate assembly for a fluid device

A device configured for converting energy includes a first surface, a second surface configured for moving with respect to the first surface during operation of the device, and a coating disposed on at least one of the first surface and the second surface. The coating includes a first layer of a ceramic alloy represented by the general formula AlMgB&#x2014;X, wherein X is present in an amount of from 0 to 70 parts by weight based on 100 parts by weight of the ceramic alloy and is a doping agent selected from the group of Group IV elements and borides and nitrides thereof, and a second layer disposed on the first layer and including carbon in a gradient concentration. The coating has a hardness of from 10 to 20 GPa and a coefficient of friction of less than or equal to 0.12.

Energy conversion device and method of reducing friction therein

A rotary fluid pressure device () has a stationary valve member (), a rotatable valve member (), and a valve seating mechanism (). The valve seating mechanism () defines an outer balance ring member () having a valve-confronting surface () in engagement with an opposite surface () of the rotatable valve member () and an inner balance ring member () having a valve-confronting surface () in engagement with the opposite surface () of the rotatable valve member (), with the outer balance ring member () and the inner balance ring member () being structurally independent from the other. The outer balance ring member () and the inner balance ring member () define a balance ring passage () which provides continuous fluid communication between a fluid inlet () or a fluid outlet () and the valve passages () in the rotatable valve member ().

Bi-directional disc-valve motor and improved valve-seating mechanism therefor

Growing community of inventors

Eden Prairie, MN, United States of America

Aaron Michael Hicks