F - Mech Eng,Light,Heat,Weapons – 01 – C
Patent
F - Mech Eng,Light,Heat,Weapons
01
C
F01C 1/10 (2006.01) F01C 11/00 (2006.01) F01C 21/02 (2006.01) F01C 21/10 (2006.01)
Patent
CA 2129756
A rotary fluid displacement apparatus (100) with an orbiting toothed ring member (30) is shown with an improved casing (60) and rolling support between the faces of the valve discs (46,47) and the first arid second fluid transfer elements (21,35). Particulary, needle bearings (106,112) ace sandwiched between thrust washers (108,114} and then between the valve discs (46,47) and the fluid transfer elements (21,35), with one of he needle bearings (106) being piloted in an annular groove (110) formed in the annular plate (23) of the first fluid transfer element (21) and the other of the needle bearings (112) being piloted on the hub (35) of the second fluid transfer element (35), The casing (60) includes two pieces, i.e. a generally cylindrical portion (62) and an end cap (64). The portion (62) includes four cavities (70, 72, 74, 76}, with the hub (35') of the second fluid transfer element (35) being in a sliding; rotatable, and sealing relation with the axially inner cavity (76) and the end cap (64} being in sliding and sealing relation with the axially outer cavity, (70). The end cap (64} includes a cavity (90) for slideably, rotatably, and sealing receipt of the hub (24) of the first fluid transfer element (21). Fluid communication is allowed axially through the end cap (64) by an axially extending fluid conduit (94) intersecting with the cavity (90) of the end cap (64) and by an axially extending fluid port (98) which intersects with first and second axially extending fluid bores (82,96) formed in the generally cylindrical portion (62) and the end cap (64) which in turn intersects with a radially extending fluid conduit (80) terminating in the axially inner cavity (76).
Hennessy David
Leclaire James P.
Horton Manufacturing Co. Inc.
Ridout & Maybee Llp
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