2011-12-20

• fluidworld at motorSubject in a new topic：DC motor with brushes 12-20 01:11
  principle (small DC motors) Permanent magnetic field.Rotor with three or more windings.Only one winding in the rotor is active at a time.Brushes form the electrical connection between the active ...

2011-12-14

• fluidworld at Applications and QuestionsSubject in a new topic：Alternative Technologies: Liquid ring vacuum pump 12-14 02:33
  The impeller turns there is a pocket of air that is trapped in the space between each of the fins. This space is first increased and then decreased. As the air is compressed it is then pushed out ...

2011-12-12

• fluidworld at Applications and QuestionsSubject in a new topic：Alternative Technologies: Rotary vane pump dry 12-12 02:39
    The centrifugal forces press the sealing edges of the vanes onto the surface of the housing.The volume between the vanes increases and this creating vacuum Weakness:Not chemical resist ...