Pump

Abstract

A pump in which fluid is fed out through piping by compression and vacuum in a compression chamber due to linear reciprocating motion of a drive part, so as to provide a low-noise product and an energy-efficient pump. The pump has a suction port, compression chamber, outlet port, drive source having a rotating shaft; a rotating part having a central portion connected to the rotating shaft and having at least one pair of rotating-side magnets of different magnetic poles arranged in a circumferential direction; and a drive part including a pair of linear-motion-side magnets of different magnetic poles wherein the pair of linear-motion-side magnets is arranged so as to correspond to the pair of magnets, and the drive part is mounted to be able to move towards or away from the rotating part and able to perform linear reciprocating motion within the compression chamber by suction force or repulsive force between the rotating-side magnets and the liner-motion-side magnets.

1 . A pump having a suction port for sucking a fluid, a compression chamber for compressing the sucked fluid, and an outlet port for feeding out the compressed fluid, the pump comprising:
 a drive source having a rotating shaft;   a rotating part having a central portion connected to the rotating shaft and having at least one pair of rotating-side magnets of different magnetic poles arranged in a circumferential direction; and   a drive part including at least one pair of linear-motion-side magnets of different magnetic poles wherein the at least one pair of linear-motion-side magnets is arranged so as to correspond to the at least one pair of magnets of the rotating part,   wherein the drive part is mounted to be able to move close to or away from the rotating part and able to perform linear reciprocating motion within the compression chamber by suction force or repulsive force between the rotating-side magnets and the liner-motion-side magnets that is displaced by rotation of the rotating part.   
     
     
         2 . The pump according to  claim 1 , comprising:
 a housing head in which the suction port and the outlet port are formed;   a wheel housing that houses the rotating part and the drive part; and   a housing that rotatably holds the rotating shaft and fixes the drive source.   
     
     
         3 . The pump according to  claim 2 , wherein the housing head and the wheel housing are fixed via a fixing step of a drive membrane. 
     
     
         4 . The pump according to  claim 3 , wherein the compression chamber is defined by at least the housing head and the drive membrane.