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US 2009/0155113 A1Published application
Variable delivery vane oil pump
AssigneesH.P.E. High Performance Engeneering S.r.l., Officine Mazzocco Pagnoni S.r.L.
InventorsEnnio Ascari, Lorenzo Campani
Life of this patent
Estimating the term…
Abstract
A variable delivery vane oil pump, is provided with a stator (10) eccentrically mounted about a rotor (9), which is adapted to turn about a longitudinal axis (6) thereof, and presents a plurality of grooves (15) radially outwardly opened and slidingly engaged, each, by a respective vane (17) the vanes (17) being arranged essentially in contact with the stator (10) by interposing a single sliding annular element (19).
Claims5
A variable delivery vane pump, the pump comprising:
- a rotor, said rotor being mounted to turn about a determined longitudinal axis, and said rotor presenting plurality of grooves outwardly radially open at one surface thereof, said surface being substantially coaxial to said axis;
- a stator, said stator extending about the rotor, and being eccentrically mounted with respect to the rotor;
- a plurality of vanes each of said vanes being slidingly mounted inside a respective one of said groove, and presenting an outer edge facing the stator;
- an adjustor selectively controlling an eccentricity between the rotor and the stator;
- and
- a single annular sliding element arranged between the stator and an outer edge of at least one of the vanes.
3 more elements
A variable delivery vane pump, the pump comprising:
- a rotor, said rotor being mounted to turn about a longitudinal axis, and said rotor presenting a plurality of grooves opening outwardly at one surface, said surface being substantially coaxial to said axis;
- a stator, said stator extending about the rotor and being eccentrically mounted with respect to the rotor;
- a plurality of vanes, each of said vanes being slidingly mounted inside a respective one of said groove, and presenting an outer edge facing the stator;
- and
- an adjustor selectively controlling an eccentricity between the rotor and the stator;
- each of said vane comprising at least two foils reciprocally overlapped and slidingly coupled one to the other;
- and
- a single sliding annular element being arranged between the stator and the vanes.
5 more elements
Dependencies are inferred from the claim text.