The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 19, 2006
Filed:
Mar. 19, 2003
Geoffrey Kenneth Rochester, London, GB;
Keith Pullen, London, GB;
Geoffrey Kenneth Rochester, London, GB;
Keith Pullen, London, GB;
Hydroventuri Limited, London, GB;
Abstract
An apparatus for extracting power from a fluid flow comprising a fluid driveable engine, a fluid directing arrangement defining a channel in the flow of a primary fluid, the channel with a flow accelerating constriction shaped. The primary fluid accelerates as it passes through the flow accelerating constriction, the arrangement being formed to impart a rotational flow component to the primary fluid entering the constriction thereby creating a radial pressure gradient in the primary fluid as it passes through the constriction. A conduit for directing flow of a driving fluid different from the primary fluid and in fluid communication with the engine and a portion of the channel having accelerated fluid flow. Flow of driving fluid through the conduit drives the engine and delivers driving fluid to the fluid directing arrangement such that it is drawn substantially along the central axis of the rotational flow.