US Patent Issued to Hamilton Sundstrand on Sept. 23 for "Straight axis variable displacement piston pump with feature to minimize piston side loading" (Illinois Inventor)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,944, issued on Sept. 23, was assigned to Hamilton Sundstrand Corp. (Charlotte, N.C.).

"Straight axis variable displacement piston pump with feature to minimize piston side loading" was invented by Olaf Enke (Rockford, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An axial variable displacement piston pump includes a drive shaft disposed on an axis, a piston barrel having a plurality of pistons disposed about and rotationally coupled to the drive shaft, a swash plate disposed about and rotationally coupled to the drive shaft, and a retention cage connected to the swash plate between the piston barrel and the swash plate. The swash plate and th...