Abstract: The present invention relates to a turbo blower and a high speed rotation body used in the turbo blower. The turbo blower includes: i) a motor having a motor shaft; ii) a gear housing accommodating a bull gear fitted on the motor shaft and a pinion gear engaged with the bull gear; iii) a high speed rotation body that includes a rotary shaft having the pinion gear on the external circumferential surface, an impeller fitted on one end of the rotary shaft, and a rotation body housing accommodating the rotary shaft, the pinion gear, and at least one first composite bearing and partially cut off to expose the pinion gear, and is partially accommodated in the gear housing; and iv) a scroll portion covering the impeller and discharging compressed air.

Abstract: Provided is a gas compressor with a variable diffuser system capable of suppressing stall and surge. The gas compressor includes i) an impeller fixed to a rotation shaft and having a plurality of blades each including a wing surface and an edge surface on an outer circumferential surface thereof; ii) a shroud surrounding the wing surface; iii) a ring valve installed on a diffuser passage connected with an outlet of the impeller and moving in a direction parallel to the rotation shaft to open and close the diffuser passage; iv) a plurality of veins installed in a circumferential direction of the diffuser passage outside the ring valve in the diffuser passage; and v) an actuator coupled with the ring valve and the plurality of veins to sequentially control movement of the ring valve and rotational angles of the veins.

Abstract: A rotary slant shaft type gas compressor having a multi-stepped exhaust system is provided, which includes: a driving shaft fixed with a cylinder head formed with gas holes; a gas guide member for intake of gas and discharge of compressed gas; a case head member coupled with the driving shaft and formed with an intake port and three exhaust ports; a valve plate member fixed on an inner surface of the case head member to contact an outer surface of the cylinder head, and formed with a gas intake valve groove and three gas exhaust valve grooves; a cylinder block formed with cylinder bores, integrally coupled with the cylinder head, and slidably inserted by pistons; and a swivel plate member connected to the cylinder block and the pistons and converting the rotation force to reciprocation motion.

Abstract: A rotary slant shaft type gas compressor having a multi-stepped exhaust system is provided, which includes: a driving shaft fixed with a cylinder head formed with gas holes; a gas guide member for intake of gas and discharge of compressed gas; a case head member coupled with the driving shaft and formed with an intake port and three exhaust ports; a valve plate member fixed on an inner surface of the case head member to contact an outer surface of the cylinder head, and formed with a gas intake valve groove and three gas exhaust valve grooves; a cylinder block formed with cylinder bores, integrally coupled with the cylinder head, and slidably inserted by pistons; and a swivel plate member connected to the cylinder block and the pistons and converting the rotation force to reciprocation motion.