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:
Oct. 20, 1998
Filed:
Feb. 25, 1997
Joseph M Cybularz, Jacobus, PA (US);
Richard K Fisher, Jr, Jacobus, PA (US);
Gary F Franke, York, PA (US);
Robert G Grubb, York, PA (US);
Voith Hydro, Inc., York, PA (US);
Abstract
A shrouded turbine for enhancing the levels of dissolved gas such as oxygen in water flowing therethrough. The turbine comprises a rotatably mounted runner, a stationary discharge ring and a band seal. The runner includes a crown, a band, and a plurality of blades extending between the crown and the band. The discharge ring is concentric with the band and spaced therefrom to permit relative rotation of the band and discharge ring. The band seal is disposed near an upstream edge of the band between the discharge ring and the band to limit water leakage into a band mixing chamber formed therebetween. The seal and the chamber are configured such that the band mixing chamber remains substantially flooded during turbine operation. A gas admission aperture allows gas to be injected into the mixing chamber. The mixing chamber is configured to promote mixing of the gas with the water leaking into the chamber during turbine operation. An additional mixing chamber may be provided above the crown.