Electric Boat Corporation

Vladimir Odessky

James S Smith

Brian E Spencer

William R Harring

Piet Van Dine

David Atwell

Pieter James Van Dine

Marvin E Rosen

Michael J Lubas

Stewart Peil

In the particular embodiments of the invention described in the specification, a first signal generator produces a signal which changes in cycles having approximately straight line segments between maximum and minimum values at a first rate and a second signal generator produces a signal which changes in cycles having approximately straight line segments at a second rate which is an order of magnitude greater than the first rate. The maximum level of the second signal during any cycle is dependent upon the instantaneous signal level of the first signal and the minimum level of the second signal during any cycle is dependent upon a selected fraction of the instantaneous signal level of the first signal. The second signal is used to control the speed of a motor in a continuously changing random manner.

Continuously changing random signal generating arrangement and method

In the typical embodiments described in the specification, a rolling element bearing arrangement includes an inner raceway with a curved outer surface facing in one lateral direction, an outer raceway with a curved inner surface facing in the opposite lateral direction, an array of rolling elements such as balls engaging the curved surfaces of the inner and outer raceways, a retaining ring in which the array of balls is received, and a retaining ring stabilizer urging the retaining ring in a lateral direction with respect to one of the raceways to inhibit vibration of the components. In addition, a vibration inhibiting outer ring member which may contain a heavy metal or a resilient material, is retained against the outer surface of the outer raceway by a composite wrap which may be a fiber-reinforced organic or inorganic polymer composite made by a dry layup, resin transfer molding, wet filament winding or preimpreganted filament winding technique.

Rolling element bearing arrangement

An electric motor housing including a metal internal hub and composite material reduces weight, reduces motor vibration transmission, increases mechanical damping, improves corrosion resistance and improves electrical performance.

Composite motor end housing with a metallic sleeve bearing support

An electric motor housing is made by press-forming a composite material on a metal cylinder and machining passages in the press-formed material. This reduces weight, reduces motor vibration transmission, increases mechanical damping, improves corrosion resistance and improves electrical performance.

Method for making a composite electric motor housing

A composite electric motor shaft including axially distributed metallic and nonmetallic sections joined together exhibit increased mechanical damping, increased rotor critical speed, improved corrosion resistance and improved motor performance.

Growing community of inventors

North Brunswick, NJ, United States of America

Vladimir Odessky