Air compressor

Abstract

The patent application discloses an air compressor. The air compressor comprises a pair of pistons, a motor, a flywheel, a pulley, a crankshaft. Each piston is reciprocable in a corresponding one of the cylinders so as to reciprocate along the axis of the corresponding cylinder to vary a working volume of the cylinder. The motor comprise an output shaft. The pully transmits torque from said output shaft to said flywheel so as to rotate said flywheel about said axis upon rotation of said output shaft. The crankshaft interconnects said flywheel with said piston so as to reciprocate said piston in said cylinder upon rotation of said flywheel. The diameter of the pulley is smaller than that of said flywheel.

We claim: 
     
         1 . An air compressor, comprising:
 a motor having an output shaft;   a flywheel;   a pulley on the output shaft of the motor, and   a drive belt connecting the pulley and flywheel, wherein the drive belt transmits torque from said output shaft to said flywheel so as to rotate said flywheel about an axis upon rotation of said output shaft, wherein diameter of the pulley is smaller than that of said flywheel.   
     
     
         2 . The air compressor of  claim 1  further comprising a pair of pistons, each piston being reciprocable in a corresponding one of the cylinders so as to reciprocate along an axis of the corresponding cylinder to vary a working volume of the cylinder. 
     
     
         3 . The air compressor of  claim 1 , wherein the ratio between the diameter of the pulley and that of flywheel is about 27:104. 
     
     
         4 . The air compressor of  claim 1 , further comprising a shaft extending along said axis between said flywheel and a bearing. 
     
     
         5 . The air compressor of  claim 2  further comprising a connecting rod, wherein the piston is configured to connect to one end of the connecting rod. 
     
     
         6 . The air compressor of  claim 4 , wherein said shaft has a first end portion and a second end portion, said first end portion is journaled in said bearing for rotation about said axis, wherein the second end portion is received within a bore in said flywheel. 
     
     
         7 . An air compressor, comprising:
 a pair of pistons, each piston being reciprocable in a corresponding one of the cylinders so as to reciprocate along the axis of the corresponding cylinder to vary a working volume of the cylinder;   a motor having an output shaft;   a flywheel;   a pulley on the output shaft of the motor;   a drive belt connecting the pulley and flywheel, wherein the drive belt transmits torque from said output shaft to said flywheel so as to rotate said flywheel about said axis upon rotation of said output shaft.   
     
     
         8 . The air compressor of  claim 7 , wherein the diameter of the pulley is smaller than that of said flywheel. 
     
     
         9 . The air compressor of  claim 8 , wherein the ratio between the diameter of the pulley and that of flywheel is about 27:104. 
     
     
         10 . The air compressor of  claim 7 , wherein the cylinders comprises a low pressure cylinder and a high pressure cylinder. 
     
     
         11 . The air compressor of  claim 10  further comprising a conduit connecting from one cylinder to another cylinder. 
     
     
         12 . The air compressor of  claim 11 , wherein the conduit comprises a one way valve. 
     
     
         13 . The air compressor of  claim 7 , further comprising a shaft extending along said axis between said flywheel and a bearing. 
     
     
         14 . The air compressor of  claim 7  further comprising a connecting rod, wherein the piston is configured to connect to one end of the connecting rod. 
     
     
         15 . The air compressor of  claim 13 , wherein said shaft has a first end portion and a second end portion, said first end portion is journaled in said bearing for rotation about said axis, wherein the second end portion is received within a bore in said flywheel. 
     
     
         16 . An air compressor, comprising:
 a motor having an output shaft;   a flywheel;   a pulley on the output shaft of the motor,   a shaft extending along an axis between said flywheel and a bearing; and   a connecting rod, wherein a piston is configured to connect to one end of the connecting rod.   
     
     
         17 . The air compressor of  claim 16 , further comprising a drive belt connecting the pulley and flywheel, wherein the drive bell transmits torque from said output shaft to said flywheel so as to rotate said flywheel about an axis upon rotation of said output shaft, wherein diameter of the pulley is smaller than that of said flywheel. 
     
     
         18 . The air compressor of  claim 16  further comprising a pair of pistons, each piston being reciprocable in a corresponding one of the cylinders so as to reciprocate along the axis of the corresponding cylinder to vary a working volume of the cylinder. 
     
     
         19 . The air compressor of  claim 16 , wherein the ratio between the diameter of the pulley and that of flywheel is about 27:104. 
     
     
         20 . The air compressor of  claim 16 , further comprising a conduit connecting from one cylinder to another cylinder.