Patent ID: 6641377
Filing Date: 2003-11-04
Classification: F04B

Abstract:
A compressor, comprising:a cylinder having a cylindrical space, a piston having front and rear sides, and slidably inserted into the cylinder at the front side to have a gap forming a clearance seal, said front side of the piston forming an operating-gas-compressing space in the cylindrical space, a plurality of support springs attached to the rear side of the piston and arranged at an interval therebetween, each support spring being composed of plate springs spaced apart from each other, said support springs supporting in a cantilever manner the rear side of the piston for free reciprocation in an axial direction of the piston, a linear drive section for driving said piston to reciprocate in the axial direction and located radially outside the cylinder close to the compressing space, said linear drive section including a driver coil connected to the piston, and a magnetic circuit having a yoke and a permanent magnet with a void in which the driver coil is accommodated and a pressure container for forming a gas chamber leading to said compressing space via the gap, a second cylinder, a second piston inserted into the second cylinder at a front side thereof to form a second operating-gas-compressing space in the second cylinder, a plurality of second suppport springs for supporting a rear side of the second piston for free reciprocating in an axial direction thereof, a second linear drive section for driving the second piston to reciprocate in the axial direction and located radially outside the front side of the second piston close to the compressing space, and a second pressure container for forming a second gas chamber, said pistons being arranged to face each other so that the compressing spaces are shared by the pistons and are located therebetween.