Earl R Quandt

US Patent:

42406765, Dec 23, 1980

Filed:

Aug 24, 1979

Appl. No.:

6/069191

Inventors:

Hugh G. Anderson - Severna Park MD
Earl R. Quandt - Annapolis MD
A. Bayne Neild - Severna Park MD

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

F16C 1704

US Classification:

308 9

Abstract:

A "fixed" pad element of a thrust bearing having a plurality of such pads th each pad including at least one groove formed in the sidewalls of the leading and trailing edge portions of the bearing pad to cause the edge portions to be more deformable than the intermediate portion. Such edge portion may also have a lower resultant coefficient of thermal expansion than the intermediate portion such that the pad surface, when hydrodynamically and thermally loaded, assumes a convex surface profile to define a wedge shaped hydrodynamic lubricating film between the pad and the adjacent thrust member. Additional lubrication may be provided through a central lubrication passage connected to a pressurized oil supply. In an embodiment where there is a plurality of sidewall grooves, some of the grooves may have different depth and width dimensions and such plurality of grooves may be filled with materials having a lower coefficient of thermal expansion, greater deformability and/or greater compressibility than the material forming the body of the pad. In another embodiment, the bearing pad may be a composite laminated structure which includes one or more layers of materials having a lower coefficient of thermal expansion, greater deformability and/or greater compressibility than the body material wherein a greater thickness of such layer occurs adjacent the edge portions of the pad.

US Patent:

45093245, Apr 9, 1985

Filed:

May 9, 1983

Appl. No.:

6/492860

Inventors:

Herman B. Urbach - Annapolis MD
Earl R. Quandt - Annapolis MD

International Classification:

F02C 106
F02C 600
F02C 700
F02C 708

US Classification:

60 3917

Abstract:

A shipboard engine system and method of operating includes two compressors with an intercooler, a compressor turbine, a power turbine, a combustor for combining fuel, air and water. Heat exchangers remove heat from the exhaust and use it to preheat the water to the combustor. Spray condensers recover water from the exhaust for reuse. Water purification apparatus is used to remove acid from the water. The system is designed for stoichiometric operation at full load and run with increased efficiency at part load to give a total lower fuel consumption.