A POWER STEERING PISTON VARIABLE PUMP FOR A VEHICLE

摘要

The purpose of the present invention is to provide a power steering piston variable pump for a vehicle, minimizing operation power of a pump. To achieve the purpose, according to the present invention, the power steering piston variable pump comprises: a cylindrical housing (10); a cylinder block (20); a rotational shaft (13); an inlet flow passage (81); a plate (80); a thrust bearing (16); a plurality of piston holes (25); a piston (22); a piston support pressure chamber (26); a swash plate (40); a circular pin (41); a support piston (31); a swash plate guide unit (42); and a pressure responding valve (55).