Linear oscillating pressurizing device

Abstract

A linear oscillating pressurizing includes a main body having an air outlet end and an air outlet valve, two electromagnetic elements disposed in the main body, a piston element disposed between the two electromagnetic elements, which has an air inlet valve disposed thereon, and a control circuit to generate oscillating current pulses. By using a series of current pulses generated from the control circuit, one can magnetize the two electromagnetic elements to the same polarity. By changing the polarity of the electromagnetic element, the attractive force and the repulsive force exerted on the piston element doubles the magnetic force used for reciprocating the piston element. By further incorporating the reciprocating movement of the piston element with the air flow, a pressurizing device having a doubled pressurizing output is obtained.

1 . A linear oscillating pressurizing device, comprising: 
 a main body with fluid contained therein;    two electromagnetic elements disposed in the main body; and    a piston element made of permanent magnet, which is disposed between the two electromagnetic elements, comprising an air inlet valve;    whereby the two magnetic elements are temporarily magnetized to drive the piston element so that the fluid is guided through the air inlet valve to be pressurized.    
   
   
       2 . The pressurizing device as recited in  claim 1 , further comprising an air outlet end and an air outlet valve disposed on one end of the main body, and an air inlet end disposed on the other end of the main body.  
   
   
       3 . The pressurizing device as recited in  claim 2 , wherein the air inlet valve is opened when the piston element is driven to move towards the air inlet end, while the air inlet valve of the piston element is closed when the piston element is driven to move towards the air outlet end.  
   
   
       4 . The pressurizing device as recited in  claim 1 , wherein the two magnetic elements are simultaneously magnetized to have the same magnetic polarity, thereby forming an attractive force to one end of the piston element and a repulsive force to the other end of the piston element.  
   
   
       5 . The pressurizing device as recited in  claim 1 , wherein the fluid is air.  
   
   
       6 . The pressurizing device as recited in  claim 1 , wherein the fluid is liquid.  
   
   
       7 . The pressurizing device as recited in  claim 1 , further comprising a control circuit electrically connecting the two electromagnetic element to magnetize the electromagnetic elements and to change polarity thereof, the control circuit including: 
 a current switch circuit transforming an input current into alternating current; and    an oscillating circuit to generate a series of positive and negative current pulse cycles.    
   
   
       8 . The pressurizing device as recited in  claim 7 , wherein a frequency of the positive and negative current pulse cycles is adjusted by tuning a resistance and a capacitance of the control circuit, thereby controlling a pressurizing speed.  
   
   
       9 . A linear oscillating pressurizing device, comprising: 
 a main body;    two magnetic elements disposed in the main body;    a piston element disposed between the two magnetic elements;    air inlet valve disposed on the piston element; and    a control circuit electrically connecting the two electromagnetic element to magnetize the electromagnetic elements and to change polarity thereof;    wherein the two magnetic elements are temporarily magnetized to drive the piston element.    
   
   
       10 . The pressurizing device as recited in  claim 9 , wherein the control circuit comprising: 
 a current switch circuit transforming an input current into alternating current; and    an oscillating circuit to generate a series of positive and negative current pulse cycles.    
   
   
       11 . The pressurizing device as recited in  claim 10 , wherein a frequency of the positive and negative current pulse cycles is adjusted by tuning a resistance and a capacitance of the control circuit, thereby controlling a pressurizing speed.  
   
   
       12 . The pressurizing device as recited in  claim 9 , wherein the two magnetic elements are simultaneously magnetized to have the same magnetic polarity, thereby forming an attractive force to one end of the piston element and a repulsive force to the other end of the piston element.