The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 26, 2020
Filed:
Nov. 17, 2017
Danfoss Power Solutions Gmbh & Co. Ohg, Neumünster, DE;
Danfoss Power Solutions G.M.B.H. & Co. OHG, Neumunster, DE;
Abstract
Hydraulic axial piston unit () of the swashplate construction type having a drive shaft () adapted to drive or be driven by a cylinder block (). The cylinder block comprises a plurality of cylinder bores (), in which several pistons () are moveable in general along the rotational axis () of the drive shaft () and relative to the cylinder bores (). First ends of the pistons () protrude outside of the cylinder bores () and are slidable fixed by means of slippers () to a swashplate (). The slippers () are hold down in a sliding manner on a sliding surface () of the swashplate () by means of a slipper hold down ring () arranged parallel to the sliding surface (). The slipper hold down ring () is in a sliding contact with its radial inner surface () with a matching surface () on a guide ball () rotationally fixed on the drive shaft () and axially moveable in direction of the rotational axis () relative to the cylinder block () against resilient forces of springs () characterized in that a mounting ring () is attached to the cylinder block () in order to limit the axial movement of the guide ball () towards the cylinder block ().