Compressor

Abstract

A first tank, a main body of a compressor, an electric motor, and a second tank are combined to form a single assembly. A booster type air compressor as the single assembly including the first tank may be easily carried. The first tank at an inlet side is integrally combined to prevent a pulsation in the supplied compressed air for eliminating the drain contained in the compressed air. The air compressor, thus, is structured to discharge high compressed air from a high-pressure outlet joint formed on the second tank.

1 . A compressor comprising:
 a first tank connected to an external compressed fluid source for accommodating an inflow of a low compressed fluid from the external compressed fluid source;   a main body of the compressor for sucking the low compressed fluid from the first tank so as to be compressed; and   a second tank for storing a high compressed fluid compressed by the main body of the compressor, and for discharging the stored high compressed fluid to outside with a high-pressure outlet joint, wherein the first tank, the main body of the compressor, and the second tank are combined to form a single assembly.   
   
   
       2 . The compressor according to  claim 1 , wherein the first tank is provided with a low-pressure outlet joint for discharging the low compressed fluid contained in the first tank. 
   
   
       3 . The compressor according to  claim 1 , wherein a first inflow pressure control valve is provided between the compressed fluid source and the first tank for regulating the inflow of the compressed fluid at a pressure in excess of a specified pressure into the first tank. 
   
   
       4 . The compressor according to  claim 1 , wherein a second inflow pressure control valve is provided between the first tank and the main body of the compressor for regulating the inflow of the compressed fluid at a pressure in excess of a specified pressure from the first tank to the main body of the compressor. 
   
   
       5 . The compressor according to  claim 1 , wherein the first tank is provided with a relief valve which releases the compressed fluid to outside when a pressure within the first tank exceeds a set pressure. 
   
   
       6 . The compressor according to  claim 1 , wherein a path extending from the external compressed fluid source to the main body of the compressor is provided with a filter for eliminating dust contained in the compressed fluid. 
   
   
       7 . The compressor according to  claim 1 , wherein the first tank and the second tank have cylindrical bodies in parallel with each other in a longitudinal direction, and are horizontally installed with respect to a mount surface. 
   
   
       8 . The compressor according to  claim 7 , wherein the first tank and the second tank are arranged with a gap therebetween, and the main body of the compressor is provided between the first tank and the second tank so as to be partially accommodated in the gap. 
   
   
       9 . The compressor according to  claim 7 , wherein the single assembly formed by combining the first tank, the main body, and the second tank is provided with handgrips at both ends of the cylindrical bodies in a longitudinal direction for gripping the assembly. 
   
   
       10 . The compressor according to  claim 8 , wherein the single assembly formed by combining the first tank, the main body, and the second tank is provided with handgrips at both ends of the cylindrical bodies in a longitudinal direction for gripping the assembly. 
   
   
       11 . The compressor according to  claim 1 , wherein the first tank and the second tank have cylindrical bodies in parallel with each other in a longitudinal direction, and are vertically installed with respect to a mount surface. 
   
   
       12 . The compressor according to  claim 1 , wherein each of the first tank and the second tank is provided with a drain valve for discharging a drain. 
   
   
       13 . The compressor according to  claim 1 , further comprising:
 a communication pipe for allowing the first tank and the second tank to communicate with each other,   wherein the communication pipe is provided with a check valve which allows the compressed fluid to flow from the first tank to the second tank but blocks an inverse flow.   
   
   
       14 . The compressor according to  claim 1 , further comprising an intake switching valve provided between the first tank and the main body of the compressor, wherein the intake switching valve allows the main body to suck an external air upon its start-up and switches to a state where the main body sucks the compressed fluid from the first tank when a pressure within the second tank reaches a set pressure. 
   
   
       15 . The compressor according to  claim 1 , wherein the first tank, the main body, and the second tank are stored in a case.