Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Casing having tangential inlet or outlet
Patent
1980-09-25
1983-06-21
Freeh, William L.
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Casing having tangential inlet or outlet
415213R, 416186R, F01D 508, F01D 502
Patent
active
043891608
ABSTRACT:
In a single stage, single suction, high speed centrifugal pump utilizing a closed Francis-vane impeller, operating noise is reduced by encasing a single-step helical gear drive arrangement in a common bearing housing with the impeller's shaft. The operating noise is further reduced by forming the driven helical gear directly on the impeller's shaft to improve dynamic balance, and by mounting a plurality of fins on the bearing housing of the pump to absorb some of the high frequency sound wave energy of the pump, and to translate a further portion of the high frequency sound wave energy into low frequency mechanical vibrations of the fins. Operating noise is further reduced by encasing the fins within a shroud and by providing a fan to blow ambient air by the fins to further disrupt the sound wave patterns emanating from the bearing housing. Operating noise is still further reduced by maintaining the impeller's shaft under tension whereby vibration of the shaft is reduced, as is the noise produced thereby.
REFERENCES:
patent: 2882829 (1959-04-01), Wade
patent: 3619086 (1971-11-01), Johnson
patent: 3628081 (1971-12-01), Herrmann
patent: 3639080 (1972-02-01), Yamabe
patent: 3776664 (1973-12-01), Kimmel
patent: 3809493 (1974-05-01), Pilarczyk
patent: 3874819 (1975-04-01), Tamura
patent: 3930747 (1976-01-01), Woolenweber
Edison International Inc.
Freeh William L.
Gabala James A.
Gealow Jon Carl
Gilroy Hugh M.
LandOfFree
High speed centrifugal pump and method for operating same at red does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High speed centrifugal pump and method for operating same at red, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High speed centrifugal pump and method for operating same at red will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2108665