LUBRICATOR FOR HORIZONTAL ROTARY COMPRESSOR

PURPOSE:To feed lubricant reliably even when installing the compressor horizontally, by providing a communication port at the portion of a partitioner for an enclosed case to be immersed in lubricant while arranging a check valve at said communication port. CONSTITUTION:An enclosed case 1 is partitioned by a partitioner 13 into spaces 16, 17 at the compressor side and feed pump side then a communication port 14 is provided at the portion of said partitioner 13 to be immersed in lubricant while a check valve 14a is arranged at said communication port 14. Consequently, the pressure of delivery gas is utilized for lowering the oil level in said space 16 and for lifting the oil level in said space 17 through the communication port 14 to prevent lowering of oil level in said space 17 by means of the check valve 14a even during stoppage of compressor, resulting in reliable lubrication even for the horizontally installed compressor.