"To date, to the author's knowledge, there has been no successful application of the hydraulic drive to oil-well pumping. It is understood, however, that there is, at the present time, an installation in the Oklahoma City oil field, near Oklahoma City, Oklahoma, wherein a manufacturer of hydraulic couplings and an oil-producing company have cooperated in experimental work with the fluid drive applied to a pumping well. No technical data or information regarding the success of the application have, as yet, been released and, consequently, this work is presented primarily for the purpose of creating interest in the application of "Fluid Drives" to the pumping of wells.

This paper will deal with a theoretical application of the "Hydraulic Coupling" for pumping oil wells. Also, a brief discussion of the history, theory and development, and uses, in which the coupling has already met with success, will be presented.

In order to clarify one point, before discussion is begun, it may be necessary to distinguish between the Hydraulic Coupling and the Hydraulic Torque Converter.

Fluid, or hydraulic, couplings consist of an impeller and a runner enclosed in a housing; they are incapable of torque conversion. The torque at the output shaft is, at all times, equal to the torque at the input shaft.

The fluid torque converter consists essentially of three elements: an impeller, or pump, on the input shaft; a runner on the output shaft; and stationary vanes or reaction members between the impeller and runner. The reaction members, or vanes, are so situated as to change the direction of fluid, thereby altering the torque ratio between the input and output shafts. Torque may be increased in the ratio of 5 to 1.

In addition to the personal enlightenment on the subject, this paper has been undertaken for the purpose of presentation to the faculty Committee on Professional Degrees of the Missouri School of Mines for the Professional Degree of Mechanical Engineer. It has not been, and will not be, offered as a publication for any purpose other than to create interest in oil-well pumping applications."--Introduction, page 1-2.


Jackson, R. O.


Mechanical and Aerospace Engineering

Degree Name

Professional Degree in Mechanical Engineering


Missouri School of Mines and Metallurgy

Publication Date



iii, 48 pages

Note about bibliography

Includes bibliographical references (page 46).


© 1942 James Francis McDonald, All rights reserved.

Document Type

Thesis - Open Access

File Type




Subject Headings

Fluid power technology
Hydraulic machinery -- Testing
Hydraulic rams
Oil well pumps

Thesis Number

T 727

Print OCLC #


Electronic OCLC #