Abstract The invention relates to a pump assembly which may be utilized as a fuel oil pump and which has constructional features which minimize the possibility of air binding. The assembly has a rotating casing member in which pumping elements are housed and which is surrounded by a casing so as to form a suction chamber which surrounds the rotating casing member. The rotation of the casing member causes liquid in the suction chamber to also rotate and form a ring of liquid. The rotating casing member has an eccentrically positioned inlet which passes through the ring of liquid so formed once during each cycle of rotation and this insures the introduction of liquid, as distinguished from only air, into the inlet.
Inventors
👤 G Hansen
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-11-04 09:14
CPC Classifications
F; F04; F04C; F04C15/00; F04C15/0057; F04C15/008
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
62 words
A pump assembly comprising a casing member rotatable about a fixed axis, a casing surrounding said casing member and forming a suction chamber therebetween, said casing member having an inlet eccentrically spaced relative to said axis, said casing has an intake orifice eccentrically spaced relative to said axis, said inlet being spaced a greater distance from said axis than said intake orifice.
Claim 2
Dependent Claim
62 words
A pump assembly comprising a casing member rotatable about a fixed axis, a casing surrounding said casing member and forming a suction chamber therebetween, said casing member having an inlet eccentrically spaced relative to said axis, said casing has an intake orifice eccentrically spaced relative to said axis, said inlet being spaced a greater distance from said axis than said intake orifice.
Claim 3
Dependent Claim
25 words
A pump assembly according to claim 1 wherein said casing member has a profiled surface to aid the rotation of liquid in said suction chamber.
Claim 4
Dependent Claim
38 words
A pump assembly according to claim 1 including a centrally disposed shaft in fixed relation to said casing, an electric drive motor having a rotor and a stator, said rotor being attached to said casing for rotation therewith.