Patent ID: 6196813
Filing Date: 2001-03-06
Classification: F04D

Abstract:
A pump assembly comprising a motor, a motor housing, a drive shaft, a first rotational support, a second rotational support, an integrated adapter, a pump housing, a seal assembly, and an impeller, wherein:said motor housing is disposed about said motor and defines a front end and a rear end;said pump housing is disposed about said impeller;said integrated adapter is arranged to couple mechanically said rear end of said motor housing to said pump housing;said motor is arranged to impart rotational movement to said drive shaft about a drive shaft axis;said drive shaft is coupled to said impeller such that rotation of said drive shaft causes rotation of said impeller;said drive shaft defines a first end disposed proximate said front end of said motor housing and a second end disposed proximate said impeller such that said drive shaft extends from said front end of said motor housing, through said rear end of said motor housing, and to said pump housing;said first rotational support is arranged proximate said front end of said motor housing;said second rotational support is accommodated by said integrated adapter;said pump assembly is arranged such that said drive shaft and said first and second rotational supports define a rotational drive assembly characterized by the absence of additional rotational support between said first rotational support proximate said front end of said motor housing and said second rotational support accommodated by said integrated adapter.