BENT AXIS TYPE VARIABLE DISPLACEMENT HYDRAULIC MACHINE

摘要

PCT No. PCT/JP89/01007 Sec. 371 Date Jan. 30, 1990 Sec. 102(e) Date Jan. 30, 1990 PCT Filed Oct. 3, 1989 PCT Pub. No. WO90/04101 PCT Pub. Date Apr. 19, 1990.Described is a bent axis type variable displacement hydraulic machine which is provided with a hydrostatic radial bearing 23 and/or a hydrostatic thrust bearing 28 to support hydraulic reaction forces exerted on a cylinder block 8. The hydraulic machine is arranged to draw out a high oil pressure corresponding to the tilt angle of the cylinder block 8 through a variable throttle means 34, 37, 51 or 54 or through a control valve 77 or 78, and to supply the pressure to the hydrostatic radial or thrust bearing 23 or 28 thereby imparting to a hydrostatic supporting capacity commensurate with the tilt angle of the cylinder block 8 to support a rotational shaft stably while holding oil leaks to a minimum.