Ship propulsion system

Patent · Tue Jan 21 04:00:00 EST 1986

OSTI ID:6245590

Kimon, P M

This patent describes an improved efficiency propulsion system for a ship operated at both deep and shallow water depths, and at variable loaded and ballast waterlines. This propulsion system consists of a number of elements interactive in their operation. The first component of the system detailed is a variable diameter propeller means equipped with a mechanism for varying the diameter of the propeller between a maximum extended diameter and a minimum diameter. The next component of the system depicted in the patent is a propeller shaft mounting which enables the propeller to rotate in the stern portion of the ship. The propeller shaft is characterized as extending parallel to the bottom keel of the ship and having an axis of rotation displaced from the bottom keel a distance less than one-half the maximum diameter of the propeller means but more than one-half of the minimum diameter of the propeller means. As a consequence of the systems design characteristics the ship may obtain maximum propeller efficiency by means of the extension in diameter of the propeller means when it is operated in a fully loaded condition in deep water.

• Assignee: Exxon Res. and Eng. Co., Florham Park, NJ
• Patent Number(s): US 4565531
• OSTI ID: 6245590
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320204* -- Energy Conservation
Consumption
& Utilization-- Transportation-- Sea & Water
DEPTH
DESIGN
DIMENSIONS
DYNAMIC LOADS
EFFICIENCY
FASTENERS
INCIDENCE ANGLE
MACHINE PARTS
MOTION
OPERATION
PROPULSION SYSTEMS
ROTATION
SHAFTS
SHIPS
SPACE DEPENDENCE
SPECIFICATIONS