F - Mech Eng,Light,Heat,Weapons – 04 – C
Patent
F - Mech Eng,Light,Heat,Weapons
04
C
F04C 15/00 (2006.01) F16C 33/76 (2006.01) F16J 15/54 (2006.01)
Patent
CA 2521446
A BEARING-SUPPORTED MECHANICAL SEAL FOR PROGRESSIVE CAVITY PUMPS includes one cylindrical body (1), optionally manufactured in steel, with an internal centered sleeve (2) fitting a pump shaft/stem (3) and housings for bearings (5); two O-ring sets (4) for adjustment and sealing. The bearing-supported assembly seals are made by retainers (7A and 7B), installed on the roller bearing edges. The sealing assembly has two stationary seats (17) and one rotary seat (19), which has a closed lubrication system, composed by one reservoir (22), two communicating tubes (23), one pressure gauge (24) that operates under atmospheric pressure, and one pressure switch (25). The reservoir has a drain (26) for replacing the lubricating oil and one relief valve (27). In the lower region of the mechanical seal, there is a reel for maintenance (28) having side covers (29) and a supporting device (30) of the pump shaft/stem.
Malavazi Vedacoes Industriais Ltda
Palmer Dean A.
LandOfFree
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