Gear pump with dual pressure relief

An internal gear pump (100) comprising:

• a rotor (130) fixed in a torque ring (120) comprising:
• the rotor (130) having a plurality of internal lobes (140);
• and
• the torque ring (120) extending beyond at least a first end (134) of the rotor;
• an idler (150) having a plurality of external lobes (160) encircled by the plurality of internal lobes (140) of the rotor;
• a hollow shaft (190) supporting the idler;
• a pressure relief element (200) positioned to shift between a first condition and a second condition;
• and
• a spring (210) biasing the pressure relief element toward the first condition from the second condition,
• wherein:
• the torque ring (120) has at least one pressure relief port (240A, 240B) positioned so that:
• in the first condition, the pressure relief element blocks a path from an interior volume (235) of the pump between the external lobes of the idler and the internal lobes of the rotor to the at least one pressure relief port;
• and
• in the second condition, relative to the first condition the pressure relief element does not block the path.