Rotary compressor and air conditioner having the same

A rotary compressor, comprising:

• a rotation shaft;
• a driving motor which is coupled to a first side of the rotation shaft to supply a rotation force;
• a cylinder under the driving motor having a first rolling piston and a second rolling piston rotating therein;
• a first rotation cam and a second rotation cam which are eccentrically provided to a second side of the rotation shaft and support the first rolling piston and the second rolling piston;
• an upper radial bearing and a lower radial bearing which are provided to an upper part of the first rolling piston and a lower part of the second rolling piston respectively and support the rotation shaft in a radial direction thereof;
• and
• an axial supporting part which comprises a first supporting member which is provided between the driving motor and the upper radial bearing, and a second supporting member which is provided between the second rotation cam and the lower radial bearing.

An air conditioner comprising:

• a rotary compressor which compresses a coolant, the rotary compressor comprising:
• a rotation shaft;
• a driving motor which is coupled to a first side of the rotation shaft to supply a rotation force;
• a cylinder under the driving motor and having a rolling piston rotating therein;
• a rotation cam which is eccentrically provided to a second side of the rotation shaft and supports the rolling piston;
• an upper radial bearing and a lower radial bearing which are provided to an upper part and a lower part of the rolling piston respectively to support the rotation shaft in a radial direction thereof;
• and
• an axial supporting part which comprises a first supporting member which is provided between the driving motor and the upper radial bearing, and a second supporting member which is provided between the rotation cam and the lower radial bearing.

An air conditioner comprising:

• a rotary compressor which compresses a coolant, the rotary compressor comprising:
• a rotation shaft;
• a driving motor which is coupled to a first side of the rotation shaft to supply a rotation force;
• a cylinder under the driving motor having a first rolling piston and second rolling piston rotating therein;
• a first rotation cam and a second rotation cam which are eccentrically provided to a second side of the rotation shaft and support the first rolling piston and the second rolling piston;
• an upper radial bearing and a lower radial bearing which are provided to an upper part of the first rolling piston and a lower part of the second rolling piston respectively to support the rotation shaft in a radial direction thereof;
• and
• an axial supporting part which comprises a first supporting member which is provided between the driving motor and the upper radial bearing, and a second supporting member which is provided between the second rotation cam and the lower radial bearing.