| 摘要 |
A horizontal internal gear pump (1) has: an intake-side capacity chamber in which an inner rotor (3) having a plurality of external teeth is accommodated within an outer rotor (2) having a plurality of internal teeth such that the external teeth mesh with the internal teeth and the inner rotor (3) is free to rotate in an eccentric state, and a liquid is drawn in between the internal teeth and the external teeth; a trochoid (4) in which is formed a discharge-side capacity chamber for discharging the liquid drawn into the intake-side capacity chamber; a liquid intake nozzle (9) extending in a direction not perpendicular to a rotating surface of the trochoid, the distal end of the liquid intake nozzle (9) dipping into a liquid collector (18); a pump casing (5) in which a concavity (5a) for accommodating the trochoid is formed; and a pump cover (6) for closing the concavity. An intake cover (8) having the liquid intake nozzle (9) is secured to the pump casing (5), and the liquid intake nozzle (9) and the intake cover (8) are integrally molded by extrusion molding a resin composition. |
