Patents Assigned to Officine Mazzocco Pagnoni S.r.L.
  • Patent number: 9964108
    Abstract: A variable displacement oil pump is described. The oil pump has a pump body connected to an intake channel and to a delivery channel, a rotor capable of rotating inside the pump body about a rotation axis and provided with a plurality of vanes. The oil pump has an oscillating stator arranged in an eccentric position around the rotor and pivoted inside the pump body at a rotation pin. The oil pump has adjustment means for adjusting the displacement of the oil pump which acts on the oscillating stator to displace it with respect to the rotor and position it in at least one predetermined operative position. The adjustment means has first thrusting means configured to exert a first thrusting action on a first outer surface portion of the oscillating stator arranged on a substantially opposite side with respect to the rotation pin taking as a reference the rotor.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: May 8, 2018
    Assignee: O.M.P. OFFICINE MAZZOCCO PAGNONI S.R.L.
    Inventors: Giuseppe Lo Biundo, Alessandra De Rango
  • Patent number: 9670928
    Abstract: A vacuum pump for a motor vehicle engine which has a stator and a chamber, has a side wall, and the side wall has a transversal section with a predetermined shape. The rotor mounted in the chamber is capable of rotating around a rotation axis parallel to the side wall. The vane mounted on the rotor is free to slide in a direction at right angles with respect to the rotation axis of the rotor, and the vane has a predetermined length and two opposite end portions that substantially slide along the side wall of the chamber. At least one of the end portions of the vane has at least one part that has a bend radius substantially equal to that of a part of the side wall, when the one vane is at a reference operating position.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: June 6, 2017
    Assignee: O.M.P. Officine Mazzocco Pagnoni, S.R.L.
    Inventors: Giuseppe Lo Biundo, Alessandra De Rango, Giovanni Pazzi, Carlo Pachetti
  • Patent number: 7918659
    Abstract: The invention relates to a vacuum pump (1) for vehicle motors, comprising a stator (2), a chamber defined within said stator (2) and at least one vane rotatably mounted inside said chamber so as to generate a depression. The stator (2) comprises inlet openings for air and oil, and a first discharge outlet (30) on which a first one-way valve operates (35). According to the invention, the stator (2) further comprises a second discharge outlet (50) separate from said first discharge outlet (30) and a second one-way valve (55) operating on said second discharge outlet (50). In this manner it is possible to separate the air discharge from the oil discharge, both physically and operationally. The invention further relates to a one-way valve for said vacuum pump. Such valve comprises a blade body (60) having a first blade which defines a first one-way valve (35) and at least one second blade which defines at least one second one-way valve (55).
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: April 5, 2011
    Assignee: O.M.P. Officine Mazzocco Pagnoni, S.r.L.
    Inventors: Alessandra De Rango, Giovanni Pazzi, Angelo Pancotti
  • Patent number: 7866963
    Abstract: A variable delivery vane pump, in particular for oil, is provided with a stator (10) eccentrically mounted about a rotor (9), which is adapted to turn about one own longitudinal axis (6), 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 at least one sliding element (19; 27) extending about the axis (6) according to an angle smaller than 360°.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: January 11, 2011
    Assignees: H.P.E. High Performance Engeneering S.r.l., O.M.P. Officine Mazzocco Pagnoni S.r.l.
    Inventors: Ennio Ascari, Lorenzo Campani
  • Publication number: 20100196187
    Abstract: A vacuum pump for a motor vehicle engine which has a stator and a chamber, has a side wall, and the side wall has a transversal section with a predetermined shape. The rotor mounted in the chamber is capable of rotating around a rotation axis parallel to the side wall. The vane mounted on the rotor is free to slide in a direction at right angles with respect to the rotation axis of the rotor, and the vane has a predetermined length and two opposite end portions that substantially slide along the side wall of the chamber. At least one of the end portions of the vane has at least one part that has a bend radius substantially equal to that of a part of the side wall, when the one vane is at a reference operating position.
    Type: Application
    Filed: July 3, 2007
    Publication date: August 5, 2010
    Applicant: O.M.P. OFFICINE MAZZOCCO PAGNONI, S.R.L.
    Inventors: Giuseppe Lo Biundo, Alessandra De Rango, Giovanni Pazzi, Carlo Pachetti
  • Publication number: 20090155113
    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).
    Type: Application
    Filed: November 18, 2005
    Publication date: June 18, 2009
    Applicants: H.P.E. High Performance Engeneering S.r.l., Officine Mazzocco Pagnoni S.r.l.
    Inventors: Ennio Ascari, Lorenzo Campani
  • Publication number: 20090110577
    Abstract: A variable delivery vane pump, in particular for oil, is provided with a stator (10) eccentrically mounted about a rotor (9), which is adapted to turn about one own longitudinal axis (6), 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 at least one sliding element (19; 27) extending about the axis (6) according to an angle smaller than 360°.
    Type: Application
    Filed: November 18, 2005
    Publication date: April 30, 2009
    Applicants: H.P.E. High Performance Engeneering S.r.I., Officine Mazzocco Pagnoni S.r.L.
    Inventors: Ennio Ascari, Lorenzo Campani
  • Publication number: 20080199342
    Abstract: The invention relates to a vacuum pump (1) for vehicle motors, comprising a stator (2), a chamber defined within said stator (2) and at least one vane rotatably mounted inside said chamber so as to generate a depression. The stator (2) comprises inlet openings for air and oil, and a first discharge outlet (30) on which a first one-way valve operates (35). According to the invention, the stator (2) further comprises a second discharge outlet (50) separate from said first discharge outlet (30) and a second one-way valve (55) operating on said second discharge outlet (50). In this manner it is possible to separate the air discharge from the oil discharge, both physically and operationally. The invention further relates to a one-way valve for said vacuum pump. Such valve comprises a blade body (60) having a first blade which defines a first one-way valve (35) and at least one second blade which defines at least one second one-way valve (55).
    Type: Application
    Filed: May 22, 2006
    Publication date: August 21, 2008
    Applicant: O.M.P. OFFICINE MAZZOCCO PAGNONI S.R.L.
    Inventors: Alessandra De Rango, Giovanni Pazzi, Angelo Pancotti
  • Publication number: 20070059187
    Abstract: An oil and vacuum pumps group (1) for a motor vehicle engine includes a motion transmission shaft (30) extending along a main axis X-X, an oil pump (10) and a vacuum pump (20) fitted on the motion transmission shaft and a gear (40) also fitted on the motion transmission shaft and adapted to derive a rotary motion from a driving gear (41) of a motor vehicle engine and to transfer said rotary motion to the motion transmission shaft to drive the oil pump and the vacuum pump. Advantageously, the oil and vacuum pumps group of the invention is structurally independent from and adapted to be associated with said motor vehicle engine. Preferably, the oil pump (10) and the vacuum pump (20) are units which are structurally independent from each other and the gear (40) of the oil and vacuum pumps group is operatively placed between the oil pump and the vacuum pump.
    Type: Application
    Filed: April 16, 2003
    Publication date: March 15, 2007
    Applicants: O.M.P. OFFICINE MAZZOCCO PAGNONI S.R.L., BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT
    Inventors: Giuseppe Lo Biundo, Alessandra De Rango, Giovanni Pazzi, Peter Fössl