System to reduce spillage of oil due to rupture of ship's tank

Details System to reduce spillage of oil due to rupture of ship's tank System to reduce spillage of oil due to rupture of ship's tank

1989-07-10

1992-10-20

Swinehart, Ed

Ships

Building

Freighters

114 72, B63B 2508

Patent

active

051561093

ABSTRACT:
A system to reduce outflow of liquid such as oil due to the rupture of a ship's tank by means of creating and continuing to maintain a partial vacuum in the affected tank or tanks. The system generates a partial vacuum below the atmospheric pressure in the ullage space of the tank(s) and maintains the vacuum to precisely balance the forces acting on the contents of the tank. If the rupture is below the water line then, due to surface tension dynamics resulting in a stratified flow, water will tend to force itself through the lower part of the rupture and force the oil upward and pump out oil over the water until the water level reaches the top part of the rupture. When the water level reaches the top part of the rupture, an equilibrium condition is established and precisely maintained by the partial vacuum condition created by the system. The stratifield flow is stopped by a non-structural barrier placed over the rupture so as to separate the molecules of water thereby, oil and reducing surface tension energy dynamics between two liquids of dissimilar viscosity. If the rupture, such as a hull crack, is above the waterline then a flexible barrier is placed over the rupture to augment the equilibrium condition to prevent the flow of the oil through the rupture.

REFERENCES:
patent: 4114552 (1978-09-01), Ross et al.
patent: 4161155 (1979-07-01), Cloutier
patent: 4273598 (1981-06-01), Bowditch
patent: 4446804 (1984-05-01), Kristiansen et al.
patent: 4519856 (1985-05-01), Lazzara
Spill-Proof Oil Tankers?, a publication "Marine Journal" Sep. 1989.

Affiliated with

Also associated with

Rating

System to reduce spillage of oil due to rupture of ship's tank does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System to reduce spillage of oil due to rupture of ship's tank, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System to reduce spillage of oil due to rupture of ship's tank will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-186297