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Reconfigurable jet pump

a jet pump and configuration technology, applied in the direction of jet pumps, machines/engines, non-positive displacement pumps, etc., can solve the problems of inability to quickly respond to the needs of customers, inability to manufacture, and fixed configuration of the diffuser, etc., to achieve the effect of high degree of accuracy, low cost and high degree of precision

Inactive Publication Date: 2010-06-17
VETROVEC JAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009]The present invention provides a reconfigurable jet pump that is also inexpensive to fabricate. In one preferred embodiment of the present invention, a reconfigurable jet pump is formed as a nozzle element and a diffuser element each being attached in in-line arrangement to a standard tube T-shape fitting or a standard pipe T-shape fitting. T-shape fittings are inexpensive commercial off-the-shelf items used in tube or pipe systems. In particular, there are T-shape fittings for tubes that use one or more joints where seals is formed by a compression / deformation of certain elements. Some classes of such fittings are known as Swagelok fittings and UltraTorr fittings respectively, each of which can be obtained from Swagelok Inc., Solon, Ohio. In a T-type compression fitting there is a first in-line port, a second in-line port, and a side port, see FIGS. 5 and 6. It is important to note, that the compression type fitting such as above mentioned the Swagelok and Ultra Torr type fittings automatically axially align the tubes (or other components with appropriate outside diameter) installed in the in-line ports to a great degree of accuracy. This feature is important to the subject invention. The subject invention fulfills and important need for a jet pump that can be produced inexpensively and can be reconfigured to conform to new operating conditions. This feature is very important in fluid installations such as chemical plants where the physical parameters of the fluid (such as density, viscosity, bubble content, etc.) or the operating flow conditions (pressures, flow rates) are not precisely known and experimentation may be required to achieve best performance of the jet pump.
[0010]Accordingly, it is an object of the present invention to provide a reconfigurable jet pump that is also and inexpensive to fabricate.

Problems solved by technology

This results in a costly product.
In addition, the configuration of the diffuser (which affects jet pump performance) is thereby fixed and unchangeable. FIGS. 3 and 4 show examples of prior art jet pumps.
In summary, prior art does not teach a capable of fast response that is also simple, lightweight, compact, and inexpensive to fabricate.

Method used

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Embodiment Construction

[0019]Selected embodiments of the present invention will now be explained with reference to drawings. In the drawings, identical components are provided with identical reference symbols. It will be apparent to those skilled in the art from this disclosure that the following descriptions of the embodiments of the present invention are merely exemplary in nature and are in no way intended to limit the invention, its application, or uses.

[0020]Referring now to FIG. 7, there is shown a cross-sectional view through a jet pump 100. The jet pump 100 comprises a fitting body 102, a nozzle. element 104, and a diffuser element 106. The fitting body 102 is preferably a T-shape tube fitting having a first compression type port 108 and a second compression port 110, with the two ports being arranged in-line. Compression style ports typically comprise a hollow threaded nut 109 and a mating thread 111 on the fitting body 102. As already noted, this type of fitting allows for precise axial alignmen...

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Abstract

The present invention provides reconfigurable jet pump that is also inexpensive to fabricate. In one preferred embodiment of the present invention, a jet pump is formed as a nozzle and a diffuser attached to a standard tube or pipe T-shape fitting. Suitable T-shape fittings may have one or more joints where seals is formed by a compression / deformation of certain elements. The subject invention fulfills and important need for a jet pump that can be produced inexpensively and can be reconfigured at conform to new operating condition without the need to replace the entire unit. This feature is very important in fluid installations such as chemical plants where the physical parameters of the fluid (such as density, viscosity, bubble content, etc.) or the operating flow conditions (pressures, flow rates) are not precisely known and experimentation may be required to achieve best performance of the jet pump.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority from the U.S. provisional patent application U.S. Ser. No. 61 / 201,886, filed on Dec. 16, 2008, entitled “RECONFIGURABLE JET PUMP.”GOVERNMENT RIGHTS IN THIS INVENTION[0002]This invention was made with U.S. government support under contract number FA8650-08-M-5026. The U.S. government may have certain rights in this invention.FIELD OF THE INVENTION[0003]This invention relates generally to apparatus and methods for jet pumps and more specifically to jet pumps suitable for easy reconfiguration.BACKGROUND OF THE INVENTION[0004]The invention is for a jet pump apparatus and method. Jet pumps (also know as ejectors, eductors, or thermo-compressors) are used in industry for pumping of liquids and fluides, see for example, R. H. Perry and C. H. Chilton, “Chemical Engineer's Handbook,” 5th edition, Chapter 6, Section “Ejectors,” pages 6-29 to 6-32, published by McGraw-Hill Book Company, New York, N.Y., 1973, and G. L...

Claims

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Application Information

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IPC IPC(8): F04F5/44
CPCF04F5/463
Inventor VETROVEC, JAN
Owner VETROVEC JAN
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