Patents by Inventor ANDREA MALOTTI

ANDREA MALOTTI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Variable displacement lubricant pump
    Patent number: 10024207
    Abstract: A lubricant pump comprises a shiftable control ring, a pump rotor rotating in the control ring, a pump outlet, and a pressure control system. The pressure control system comprises a pressure control chamber which pushes the control ring into a high pumping volume direction, an engine pressure input port connected to an engine pressure output port of an engine, a pilot chamber connected to the engine pressure input port which pushes the control ring into a low pumping volume direction, and a pressure control valve which controls a pressure in the pressure control chamber. The pressure control valve comprises a control valve plunger which opens/closes a control port to connect/disconnect the pressure control chamber to the atmospheric. The control valve plunger is fluidically connected to the engine pressure input port so that the control valve plunger is pushed by a lubricant pressure of the engine into an open position.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: July 17, 2018
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Nicola Celata, Maurizio Moriglia, Andrea Malotti, Nicola Novi
  • VARIABLE DISPLACEMENT LUBRICANT PUMP
    Publication number: 20160115832
    Abstract: A lubricant pump comprises a shiftable control ring, a pump rotor rotating in the control ring, a pump outlet, and a pressure control system. The pressure control system comprises a pressure control chamber which pushes the control ring into a high pumping volume direction, an engine pressure input port connected to an engine pressure output port of an engine, a pilot chamber connected to the engine pressure input port which pushes the control ring into a low pumping volume direction, and a pressure control valve which controls a pressure in the pressure control chamber. The pressure control valve comprises a control valve plunger which opens/closes a control port to connect/disconnect the pressure control chamber to the atmospheric. The control valve plunger is fluidically connected to the engine pressure input port so that the control valve plunger is pushed by a lubricant pressure of the engine into an open position.
    Type: Application
    Filed: May 24, 2013
    Publication date: April 28, 2016
    Inventors: NICOLA CELATA, MAURIZIO MORIGLIA, ANDREA MALOTTI, NICOLA NOVI