Electromagnetic oscillating fluid pump

Abstract

An electromagnetic oscillating fluid pump with a T-shaped valve includes a housing having an air outlet end and an air outlet, two electromagnetic coils disposed in the housing and a magnetic piston slidably disposed between the two electromagnetic coils, which has a valve disposed therein. By changing the magnetic polarity of the electromagnetic coil, the piston is magnetically driven to reciprocate. During reciprocation of the piston, air can be pressed to open the valve to pass through a gap between the valve and piston.

1 . A electromagnetic oscillating fluid pump, comprising:
 a housing being hollow cylinder and having an air inlet and an air outlet at two ends thereof, respectively;   two electromagnetic coils disposed within the housing;   a piston made of permanent magnet, disposed between the two electromagnetic coils, wherein the piston is of a disk shape with two magnetic poles on two sides thereof, respectively, a first valve hole is arranged in the piston; and   a first valve slidably received in the first valve hole, being of a T shape.   
   
   
       2 . The fluid pump as recited in  claim 1 , wherein the first valve is composed of two perpendicular main bars and one tail bar, the horizontal main bar is parallel to and longer than the tail bar, and a gap is defined between the vertical main bar and the first valve hole for allowing air to pass through. 
   
   
       3 . The fluid pump as recited in  claim 1 , further comprising one or more through holes around the first hole and under the first valve. 
   
   
       4 . The fluid pump as recited in  claim 1 , further comprising a second valve slidably received in a second valve hole located in the housing near the air outlet.