Lubrication system for a rotary vacuum pump
AssigneeVhit S.P.A.
InventorLeonardo Cadeddu
Life of this patent
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Abstract
A lubrication system (200) for a rotary vacuum pump (300) connectable to a thermal engine comprises a suction duct (50) connecting the pump (300) to a power brake (16), and a connecting duct (23) connecting the inside of the engine with the suction duct (50) in order to generate, through the connecting duct (23), a flow of an air-oil mixture sucked from the inside of the engine. A pump having a casing (40) which defines a pumping chamber (44) and a connecting duct (23) formed in the casing (40), and a lubrication method for such a pump are also provided.
Claims20
Lubrication system (200) for a rotary vacuum pump (300) connectable to a thermal engine, comprising a suction duct (50) adapted to connect the pump (300) to a power brake (16), characterized in that said lubrication system (200) further comprises a connecting duct (23) adapted to connect the inside of the engine with the suction duct (50) in order to generate through the connecting duct (23) a flow of an air-oil mixture sucked from the inside of the engine.
Rotary vacuum pump (300) connectable to a suction duct (50) of a power brake (16), said pump comprising a casing (40) which defines a pumping chamber (44);
- a rotor (12) and a vane (22) mounted on the rotor (12), said rotor and vane being suitable to divide the chamber (44) into a suction chamber (13) and a compression chamber (18);
- characterized in that the pump (300) further comprises a connecting duct (23) formed in the casing (40) and adapted to connect the inside of the engine to the suction duct (50).
Dependencies are inferred from the claim text.