ApplicationNo. 027431 filed on 03/08/1993
US Classes:418/21, Movable member moved axially418/24, Spring or fluid biased movable member418/28, By axial movement of movable member418/29Rotating inner working or reacting member repositioned relative to cylinder
ExaminersPrimary: Bertsch, Richard A.
Assistant: Freay, Charles G.
Attorney, Agent or Firm
Foreign Patent References
International ClassF01C 021/16
AbstractA fluid pump is arranged to employ cooperating gears that are arranged for axial displacement relative to one another, whereupon a volumetric chamber positioned between a surrounding housing and one of a plurality of inter-nesting first and second cylindrical housings permits displacement of the first and second cylindrical housings towards one another that in turn effects axial displacement of the gears relative to one another to control inter-engagement and associated volumetric displacement relative to the gear structure.