The present invention relates to a fluid
compression device (1) comprising a first compression chamber (3) and a second compression chamber (4), an intake
system (2) communicating with the first compression chamber (3), a
transfer system (6) communicating with the first compression chamber (3) and the second compression chamber (4), and a mobile
piston (5) for ensuring the compression of the fluid in the first compression chamber (3) and in the second compression chamber (4). The device (1) further comprises a
discharge orifice (7) communicating with the second compression chamber (4) and configured to allow the exit of the
compressed fluid, wherein the second compression chamber (4) is delimited by a portion of the body of the
piston (5) and by a fixed wall of the device, the
piston (5) being translatable according to a longitudinal direction (A), the piston (5) having a tubular portion mounted around a fixed central guide (8), the extremity of the central guide (8) forming the fixed wall delimiting a portion of the second compression chamber (4). The device (1) further comprises a sealing
system (10) formed between the central guide (8) and the piston according to the longitudinal direction (A) of translation of the piston (5), the intake
system (2) being located at a first end of the device (1), the
discharge orifice (7) being located at a second end of the device, and the
transfer system (6) being located between the intake system (2) and the
discharge orifice (7).