US 12,435,717 B2
Rotary pump or motor with improved intake, exhaust, vane and bearingless sleeve features
Charles H. Tuckey, Cass City, MI (US)
Filed by Charles H. Tuckey, Cass City, MI (US)
Filed on Aug. 26, 2022, as Appl. No. 17/822,546.
Claims priority of provisional application 63/237,545, filed on Aug. 27, 2021.
Prior Publication US 2023/0083167 A1, Mar. 16, 2023
Int. Cl. F04C 2/44 (2006.01); F01C 1/44 (2006.01); F01C 21/08 (2006.01); F04C 5/00 (2006.01); F04C 18/44 (2006.01); F04C 29/12 (2006.01)
CPC F04C 2/44 (2013.01) [F01C 1/44 (2013.01); F01C 21/0809 (2013.01); F04C 5/00 (2013.01); F04C 18/44 (2013.01); F04C 29/12 (2013.01); F04C 2240/20 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A vane pump or motor assembly, comprising:
a housing having an inner cavity with an inner wall disposed about a first central axis;
a rotor disposed in the inner cavity and rotatable about a second axis that is offset from the first central axis to create a variable width space between the rotor and the inner wall;
a plurality of vanes moveably carried by the rotor and engaging the inner wall to partition the variable width space into a plurality of chambers of increasing and decreasing volume in response to rotating the rotor; and
wherein each vane of the plurality of vanes has a mounting end and a main body portion extending from the mounting end and wherein the rotor includes corresponding recesses that receive of the mounting ends of the vanes and wherein the mounting ends of the vanes engage have at least one edge that engages the recesses with line contact to continually support the vanes for outward and inward swinging motion about a fulcrum defined by the line contact; wherein the vanes are formed of metal sheet material that is elastically deformable.