F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
F04D 19/00 (2006.01) E21B 43/12 (2006.01) F04D 3/02 (2006.01) F04D 13/04 (2006.01) F04D 31/00 (2006.01)
Patent
CA 2053021
T 6003 A B S T R A C T APPARATUS FOR COMPRESSING A FLUID Apparatus for compressing a fluid comprising a tubular, open- ended housing (2) having a suction end (5) and a discharge end (6), a tubular, open-ended rotor (8) rotatably arranged in the housing (2), an annular driver space (17) which is defined between the inner surface of the housing (2) and the outer surface of the rotor (8), an annular seal preventing fluid flow from the annular driver space (17) to the suction end (5), a rotor driver (20) arranged in the annular driver space (17), and a rotor-driven compressor (30) arranged in the tubular rotor (8), wherein the rotor-driven com- pressor (30) includes a helical screw blade (32) which is secured to the inner surface of the tubular rotor (8), and wherein the pitch of the helical screw blade (32) decreases in the direction of the discharge end (6). (Figure 1) hsbfg:t6003ff.doc C12/T6003FF
Shell Canada Limited
Smart & Biggar
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