Title:
BUOYANCY ENGINE
Document Type and Number:
WIPO Patent Application WO2005113979
Kind Code:
A3
Abstract:
A buoyancy engine, including an upper casing, a lower casing, and a manifold separating the upper and lower casings. The manifold has internal and external control means, that control amounts of liquid entering and leaving the manifold and casings through a primary route and an alternate route. There is a variably ballasted power piston within the upper casing, into and out of which liquid ballast can be pumped to change its buoyancy. There is a liquid discharge piston within the lower casing, that can be coupled to the variably ballasted power piston to form a primary pump. There is also a backup pump that can be used when the primary pump fails. A mechanical slide valve controls the entrance and exit of liquid from the manifold through the primary route.
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Inventors:
ROBINSON MARK DOUGLAS (US)
Application Number:
PCT/US2005/016636
Publication Date:
April 13, 2006
Filing Date:
May 13, 2005
Export Citation:
Assignee:
ROBINSON MARK DOUGLAS (US)
International Classes:
F03B17/02; F03C1/00; (IPC1-7): F03C1/00
Foreign References:
| US3643449A | 1972-02-22 | |||
| US4208878A | 1980-06-24 | |||
| US4603551A | 1986-08-05 | |||
| US6863806B2 | 2005-03-08 |
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