Unlock instant, AI-driven research and patent intelligence for your innovation.

Pump with turbulence inducing tab

A centrifugal pump and tongue technology, applied in the field of centrifugal pumps, can solve problems such as failures

Inactive Publication Date: 2005-12-07
布扎·劳埃德
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Also, the seals used to seal the turbine drive shaft to the pump casing are prone to failure due to heat buildup on the seals

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pump with turbulence inducing tab
  • Pump with turbulence inducing tab
  • Pump with turbulence inducing tab

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] specific implementation plan

[0015] One embodiment of the present invention and several variations thereof are described in detail below. However, the description is not to be construed as limiting the invention to these particular embodiments. Numerous other embodiments will also be recognized by those skilled in the art.

[0016] The present invention provides a centrifugal pump 10 having a pump casing 12 and a rotatable impeller 14 disposed therein. At least one tab 16 is defined within the pump housing 12 for inducing turbulent flow within the pump housing 12 during operation of the pump 10 .

[0017] As shown in the figures, the pump casing 12 typically includes two parts: a front 20 and a rear 22 . The front portion 20 has a front wall 24 and the rear portion 22 has a rear wall 26 . The pump housing 12 also includes a substantially circular side wall 28 . The rear wall 26 defines a drive shaft opening 30 for allowing a drive shaft 32 to enter the interior o...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A centrifugal pump has a pump case and a rotatable impeller disposed within the pump case. A central aperture is defined within the rearward wall of the pump case to facilitate the connection of an impeller drive shaft to the impeller. A drive shaft seal is disposed within the central aperture to seal the impeller drive shaft to the pump case. A tab is disposed within the pump case such that it protrudes away from the rearward wall of the pump case. The tab is sized, dimensioned and located so as to create sufficient turbulence proximate to the drive shaft seal to suppress the buildup of heat and chemical precipitates around the drive shaft seal.

Description

field of invention [0001] This invention relates generally to centrifugal pumps, and more particularly to a centrifugal pump for use in water recreational facilities. Background technique [0002] Centrifugal pumps used to recirculate water in hydrotherapy devices such as spas, hot tubs, swimming pools and recirculating bathtubs are prone to fouling and chemical buildup within their pump housings. The main problem area occurs around the seals used to seal the turbine drive shaft to the pump casing. This fouling phenomenon is the result of the precipitation of salts and other chemicals dissolved in the water. [0003] Furthermore, the seals used to seal the turbine drive shaft from the pump casing are prone to failure due to heat buildup on the seals. [0004] Therefore, there is a need for a centrifugal pump that avoids the drawbacks of the prior art. Contents of the invention [0005] The present invention fulfills the above needs. The centrifugal pump of the present ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F04B17/00F04B35/04F04D7/04F04D7/06F04D29/42
CPCF04D29/426F04D7/045
Inventor 布扎·劳埃德
Owner 布扎·劳埃德