Micro gear pump

• Main Authors: ZENG XINGFU, SU DELU
• Format: Patent
• Language: English
• Published: 08.07.2015
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS; WEAPONS

The utility model discloses a micro gear pump. The micro gear pump comprises a rear installation plate, a magnet installation cover, a magnet, a sealing ring, a ceramic shaft sleeve, a rear pump body, a first tetrafluoromethane gasket, a second tetrafluoromethane gasket, a location pin, a pressure gear, a middle pressure block and a front pump body, wherein the magnet is installed in the magnet installation cover, and the magnet installation cover is fixedly connected with the rear installation plate; the sealing ring is arranged between the magnet and the rear pump body; the ceramic shaft sleeve is arranged on the rear pump body and the front pump body; the first tetrafluoromethane gasket is fixed between the rear pump body and the middle pressure block through a location pin, and the second tetrafluoromethane gasket is fixed between the middle pressure block and the front pump body through a location pin. The micro gear pump adopts a ceramic shaft, a titanium alloy gear and the ceramic shaft sleeve; the micro gear pump is not liable to wear during a process of conveying a medium, thus avoiding the possibility of polluting the conveyed object; the original diameter of heat dissipation holes is reduced, thus increasing the flowing speed, improving the heat dissipation effect, and prolonging the service life.