Hydraulic coupling member with bidirectional pressure-energized probe seal

A female hydraulic coupling member comprising:

• (a) a body having a first longitudinal bore, the first bore having a circumferential shoulder therein;
• (b) a retainer adapted to be inserted into a first end of the first longitudinal bore and to seat on the shoulder, the retainer having a second longitudinal bore;
• (c) an annular probe seal having a first curved section, a second, opposing curved section and a curved back section joining the first curved section and the second curved section, the seal situated within the first longitudinal bore interposed between the shoulder and the retainer upon insertion of the retainer into the first longitudinal bore and oriented such that an opening in the seal between the first curved section and the second curved section and opposite the back section faces the longitudinal axis of the first bore, the seal configured such that when the probe section of a male hydraulic coupling member is inserted in the female hydraulic coupling member and contacts the probe seal, the first curved section of the probe seal is pressure-energized if the fluid pressure within the coupling exceeds the ambient pressure, second curved section of the probe seal is pressure-energized if the ambient pressure exceeds the fluid pressure within the coupling and at least one of the curved sections is moved about an annular axis when fluid pressure within the seal causes the curved back section to move in a radial direction away from the central axis of the longitudinal bore.