PISTON COMPRESSOR WITH INTERNAL FLOW OF COOLING AIR IN TRAY Russian patent published in 2009 - IPC F04B39/06 

FIELD: engines and pumps.

SUBSTANCE: device is intended for application in the field of compressor making. Piston compressor of reciprocal type for creation of compressed air comprises at least one piston (7) connected to crankshaft (8) by means of coupled connecting rod (9) installed by means of rolling bearings (10, 10'), at that piston (7) in coupled cylinder (3) executes reciprocal motion and via adapter (6) integrated into cylinder (4) head causes compression of sucked air. Via inlet valve (13) cooling air from inlet pipeline (11) gets into tray and via outlet valve (14) it exits tray (2), so that internal flow of cooling air is created in tray (2). Bend for cooling air from inlet pipeline (12) was installed in head (4) of cylinder, and cooling air, at least via single tubular joint (15) arranged outside along cylinder (3) between head (4) of cylinder and tray (2), is passed by cylinder (3), to avoid heating of cooling air.

EFFECT: ventilation is created in tray operating without oil, which transports pure cooling air in tray for cooling of heated components in tray, for instance, rolling bearings, and air has low-temperature at the inlet.

1 dwg, 11 cl