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:
Feb. 06, 2007
Filed:
Mar. 28, 2002
Robert D. Chung, Greenfiled, WI (US);
Anthony M. Claas, Waukesha, WI (US);
Reginald J. Goss, Thiensville, WI (US);
Mark J. Matenaer, West Bend, WI (US);
Robert D. Chung, Greenfiled, WI (US);
Anthony M. Claas, Waukesha, WI (US);
Reginald J. Goss, Thiensville, WI (US);
Mark J. Matenaer, West Bend, WI (US);
The Oilgear Company, Milwaukee, WI (US);
Abstract
A saddle bearing liner () for a variable displacement axial piston pump () includes two axially-spaced apart bearing surfaces () with an offset central section () integrally joining them. A hollow projection () extends radially from the convex side of the pressure bearing section () and is received with a recess () of the housing () to locate the liner (). The liner () has radially extending ledges () which mate with surfaces () of the housing () to inhibit skewing of the bearing liner () relative to the axis of the bearing surfaces (). The projection () is hollow and opens to the bearing surface () so that presurrized fluid from the housing () can be injected between the bearing surface () and the mating surface () of the swashblock (). The projection () also prevents the liner () from rotating about the bearing surface axis.