Patent ID: 6279452
Filing Date: 2001-08-28
Classification: F04B

Abstract:
An axial piston machine (1) of the pivoting carriage type of construction, comprising a pivotable cylinder drum (8), a drive shaft (3), a drive shaft bearing arrangement (4,5) having said drive shaft mounted therein for connection to a drive shaft flange (6), pistons (11, 12) articulated on said flange (6) being moveable in cylinder bores (9, 10) in the cylinder drum (8), a central journal (16) supporting said cylinder drum (8) on said flange (6), a flushing agent duct (45, 47 to 51) for supplying the drive shaft bearing arrangement (4, 5) with flushing agent being arranged in the central journal (16) and in the drive shaft (3), a control mirror body (18) having control nodules in order to connect the cylinder bores (9, 10) cyclically to a high-pressure line and a low-pressure line, a positioning arrangement (26) for tilting the cylinder drum (8) in conjunction with the control mirror body (18), a positioning journal (25) for connecting the positioning arrangement (26) to the control mirror body (18), said positioning arrangement (26) comprising a hydraulically actuatable positioning piston (28) which has a transverse bore (29) having the positioning journal (25) inserted therein, said flushing agent duct (43, 24) being conducted through the positioning journal (25) and the control mirror body (18) up to the central journal (16), said machine (1 having a housing (52) flushed with flushing agent through the flushing agent duct (40-43, 24, 44, 45, 47-51), an opening in said housing (52)for the simultaneous egress of the flushing agent from the housing (2) of the axial piston machine (1), a closing plate (17) includes a longitudinal bore (27), the positioning piston (28) being guided in said longitudinal bore, said closing plate (17) including at least one longitudinal groove (42) into which opens the bore (43) in the positioning journal (25) either directly or indirectly via the transverse-bore (29) in the positioning piston (28), an in-feed line (40) is arranged in the closing plate (17) for feeding the flushing agent into the longitudinal groove (42), wherein the in-feed line (40) is connected to a flushing and feeding pressure valve (41).