To prevent an internal leakage from occurring due to insufficient oil volume in a cylinder in a low speed range and a suction air heating loss and an increase in discharge oil volume from occurring due to defective lubrication of sliding parts and an excessive amount of oil supplied to the cylinder in a high speed range, even when the volume of supply oil in a roller part is varied by a rotational speed.
This rotary compressor comprises motors controlled at different rotational speeds. The inside of a closed container is under a suction pressure. A front part allowing lubricating oil supplied to the inner surface of the roller part to flow therein and a rear part alternately reciprocating between the front part and a suction side and temporarily holding the lubricating oil in the front part are provided on an end plate closing a roller in the cylinder.
KOSOKABE HIROKATSU
ISHIYAMA AKIHIKO
MUKAI YUUGO
