Patent ID: 7757598
Filing Date: 2010-07-20
Classification: F04B,Y10S

Abstract:
1. An axial piston pump, comprising: a housing having an outlet port passage; a rotating group having an axis of rotation disposed in the housing, the rotating group comprising: a barrel including a plurality of cylinder bores; and a plurality of piston assemblies wherein each of the plurality of piston assemblies includes a piston slideably disposed within one of the cylinder bores; wherein the rotating group is in fluid communication with the outlet port passage of the housing; a swashplate disposed in the housing and being pivotable about a primary axis that is perpendicular to the axis of rotation of the rotating group; wherein the swashplate is oriented at a fixed secondary angle with the primary swashplate axis, the secondary swashplate angle causing a side force to be applied to the swashplate during operation of the pump; and a hydrostatic thrust bearing through which the side force is transferred to the pump housing.