ROBERT E WELCH
Engineering in Wilmington, MA
License number
Massachusetts 23544
Issued Date
Jun 26, 1970
Expiration Date
Jun 30, 2006
Type
Mechanical Engineer
Address
Address
Wilmington, MA 01887
Professional information
Rotary Vane Pump With Removable Particulate Collection Chamber
US Patent:
5217357, Jun 8, 1993
Filed:
Sep 10, 1992
Appl. No.:
7/942768
Inventors:
Robert E. Welch - Wilmington MA
International Classification:
F04B 2310, F04C 2344
US Classification:
418 46
Abstract:
A rotary vane pump has a hollow rotor and a stationary liquid distributor member within the hollow rotor center, within which member plural supply and discharge fluid paths are provided. An elliptical housing allows for any one pumping chamber defined between adjacent slidable vanes to undergo plural pumping cycles. The novel pump is suited to operate under conditions of low inlet pressure and high discharge pressure, and is usable with incompressible liquids. The elliptical housing is formed by a boundary ring located within a pump casing, the boundary ring having an elliptical inner surface and a cylindrical outer surface. The pump may selectively include structure for enabling separation of particulate material from pumped liquids by the use of centrifugal force. The particulate material enters an opening in the boundary ring, the opening being connected by a passageway in the pump casing to a removable particulate collection chamber connected to the pump casing.