Fluid pressure rotating machine

A fluid pressure rotating machine comprising:

• a cylinder block configured to be rotated together with a driving shaft;
• a plurality of cylinders formed in the cylinder block, the cylinders being arranged at predetermined intervals in a circumferential direction of the driving shaft;
• pistons respectively inserted into the cylinders in a slidable manner, the pistons being configured to each define a capacity chamber in an interior of the cylinder;
• a tiltable swash plate configured to cause the pistons to reciprocate such that the capacity chambers are expanded and contracted;
• a tilting mechanism configured to apply a tilting mechanism biasing force against the swash plate in accordance with a supply control pressure;
• a support biasing member configured to support the swash plate by exerting a biasing force against the tilting mechanism biasing force;
• and a regulator configured to control the supply control pressure to the tilting mechanism in accordance with a discharge pressure of the fluid pressure rotating machine, wherein the regulator has a biasing member configured to be extended and compressed by following tilting of the swash plate;
• and a control spool configured to be moved in accordance with a biasing force from the biasing member, the control spool being configured to regulate the supply control pressure, the biasing member and the support biasing member are provided adjacent to each other, and the support biasing member is configured so as not to exert the biasing force against the control spool.