Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Casing with mounting means
Patent
1990-08-24
1994-09-06
Look, Edward K.
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Casing with mounting means
4152141, F01D 2524, F01D 2528
Patent
active
053442865
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a centrifugal pump of the type having a housing which is divided parallel to the shaft axis and comprises upper and lower housing parts provided with flange segments, the lower housing part having suction and pressure nozzles and being provided with legs.
Such centrifugal pumps, which are very readily accessible for eventual repairs and are generally equipped with double flow impellers, include a longitudinally divided pump housing with a shaft which is journalled at both ends. Since the suction and pressure nozzles are located below the plane of the shaft, the centrifugal pump housing must not be removed from the pipe for inspection or repair. By lifting off the upper part of the housing, the rotating components become easily accessible and can be removed without difficulty. A drawback of this design is the connection between pump and motor which requires a particularly stable foundation, frame or the like, as well as precise alignment of pump and motor, to ensure reliable operation with little wear.
A centrifugal pump with a housing divided parallel to the shaft axis is known from the French Publication No. 488.377. The lower part, which includes the suction and pressure nozzles, is provided with a base plate which also supports the bearings for the pump shaft. Installation of the pump at the erection site is made possible by means of the base plate, and particularly the lower side.
The Belgian Publication No. 385893 likewise shows a longitudinally divided housing. The front sides of the lower housing part are provided with mounting surfaces which serve to attach holders for the shaft bearings. Additional supports permit installation of the housing on a frame formed from double T-shaped carriers.
OBJECTS OF THE INVENTION
It is an object of the invention to develop an economical, longitudinally divided pump housing which can be coupled to a motor and can provide versatility in pump installation.
SUMMARY OF THE INVENTION
The above and other objects of the invention are accomplished by the provision of a centrifugal pump wherein facets which serve as abutments upon attachment are provided on the lower housing part in the region of the respective flange segment and at the pump legs. The facets are located in planes which intersect the shaft axis and are perpendicular thereto. The legs are disposed opposite one another in the direction of the shaft axis and are provided with a force-transmitting and torque-transmitting connection.
In this manner, a motor can very easily be indirectly or directly secured to a housing of this type by means of a flanged connection. If those sides of the housing with the shaft bearings are designated the front sides of the housing, then these are provided with facets in the region of the flange segment. The legs of the pump are likewise provided with facets. The facets serve as abutments upon attachment of additional components. Thus, by means of a flanged connection, a motor casing can be secured to the lower part of the housing with four-point engagement in the region of the flange segment and the pump legs. Since the pump legs which are located opposite one another in the direction of the shaft axis have a force-transmitting and torque-transmitting connection, deformation of the lower housing part with accompanying impairment of shaft journalling is largely eliminated. The forces can be directly conducted into a foundation, frame or the like at the other front side of the housing. By virtue of the exclusive attachment to the lower housing part, the advantage of longitudinally divided pump housings is retained without change. In the event of an inspection or the like, the lower housing part with its connecting flanges can remain directly in the pipe and the motor, which is secured to the lower housing part by a flanged connection, need not be removed. Nevertheless, it is possible to open the housing without problem. The force-transmitting and torque-transmitting connection of the pump legs disposed opposite one another
REFERENCES:
patent: 704038 (1902-07-01), Hope
patent: 1886035 (1932-11-01), Mann
patent: 2850228 (1958-09-01), Rowley
patent: 2850262 (1958-09-01), Sprouse
patent: 2929218 (1960-03-01), Yates
patent: 3776660 (1973-12-01), Anderson et al.
patent: 3791760 (1974-02-01), Lipe
patent: 3799482 (1974-03-01), Bellati et al.
patent: 3847504 (1974-11-01), Martin
patent: 3891345 (1975-06-01), Doolin
patent: 4900224 (1990-02-01), Timperi et al.
Beiss Gunter
Schafer Horst
KSB Aktiengesellschaft
Look Edward K.
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