FLOW RESTRICTOR AND GAS COMPRESSOR

摘要

The present invention refers to a flow restrictor (1) for application in bearing formation between a piston (2) and a cylinder (3) of a gas compressor (4). Such gas compressor (4) comprises at least a pad (5) externally surrounding the cylinder (3). Additionally, the gas compressor (4) also comprises at least an inner cavity (6), arranged between the pad (5) and the cylinder (3), fluidly fed by a discharge flow arising from a compression movement exerted by the piston (2) within the cylinder (3). Additionally, the gas compressor (4) further comprises at least a bearing formation gap (7) separating a piston outer wall (2) and an inner cylinder wall (3). Further, the gas compressor (4) also comprises at least a flow restrictor (1) provided with a housing (12) fluidly associating the inner cavity (6) to the bearing formation gap (7). Such flow restrictor (1) comprises at least a porous element (8), associated to the housing (12), provided with at least a restrictor part provided with a porosity sized to limit the gas flow flowing from the inner cavity (6) to the bearing formation gap (7). The present invention also refers to a sealing existent between the porous element (8) and the housing (12), the filtering features of the porous element (8) and to a gas compressor (4) comprising a flow restrictor (1) as described above.