Title:
IMPELLER PUMPS
Document Type and Number:
Japanese Patent JPS5259306
Kind Code:
A
Abstract:
A balanced rotary sliding vane pump has a flexible cheek plate slightly spaced from the rotor and vanes. A hydrostatic pressure pad exposed to outlet pressure urges the cheek plate to deflect toward the rotor and is fully effective at low speeds. A pressure force opposing this deflection at higher speeds is produced by restricting the outlet for fluid discharged by the inwardly moving vanes, thus augmenting the pressure field applied in the clearance space between the rotor and the cheek plate. This speed responsive change in the cheek plate deflection provides for a high volumetric efficiency at slow speeds and also reduces the possibility of cheek plate wear and seizure at higher speeds when volumetric efficiency is less important.
Inventors:
ARUBIN JIYOZEFU NIIMIIKU
REIMONDO BURUUSU PETEIBOON
REIMONDO BURUUSU PETEIBOON
Application Number:
JP13036476A
Publication Date:
May 16, 1977
Filing Date:
October 29, 1976
Export Citation:
Assignee:
SPERRY RAND CORP
International Classes:
F04C14/26; F04C2/344; F04C15/00; (IPC1-7): F04C1/16