Matthew L Mcphate

US Patent:

6499976, Dec 31, 2002

Filed:

Aug 17, 2001

Appl. No.:

09/933553

Inventors:

Andrew J. McPhate - Baton Rouge LA 70808
Matthew McPhate - Baton Rouge LA 70808
Douglas R. Fleming - New Orleans LA 70124

International Classification:

F03C 222

US Classification:

418 13, 418188, 418225

Abstract:

A roller vane motor having a housing and a stator positioned on an inside surface of the housing. The stator has an internal wall with an inlet port and an outlet port and the portion of this internal wall at the outlet port tapers open at an angle of less than 45 degrees relative to a tangent of the internal wall. A rotor assembly is positioned within the stator. The rotor assembly includes: i) a rotor shaft, ii) a plurality of flutes extending from the rotor shaft; and iii) cylindrical rollers positioned between said flutes.