Patents by Inventor Matthieu Chanfreau

Matthieu Chanfreau 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).

  • Control valve for cooling circuit
    Patent number: 7984700
    Abstract: A control valve that forms part of a cooling circuit comprising a first branch which contains a radiator and a second branch that constitutes a bypass of a radiator, and its method of use, are described. When used in a motor vehicle combustion engine cooling circuit, the control valve has a third branch and has at least one unit heater for heating the vehicle cabin.
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: July 26, 2011
    Assignee: Valeo Thermique Moteur
    Inventors: Matthieu Chanfreau, Daniel Virey
  • Control valve for cooling circuit
    Patent number: 7168397
    Abstract: A control valve suitable for forming part of a cooling circuit comprising a first branch which contains a radiator and a second branch that constitutes a bypass of a radiator is described. The control valve has a third branch, which, in a motor vehicle combustion engine cooling circuit, has at least one unit heater for heating the vehicle cabin.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: January 30, 2007
    Assignee: Valeo Thermique Moteur
    Inventors: Matthieu Chanfreau, Daniel Virey
  • Control valve for cooling circuit
    Publication number: 20060201455
    Abstract: A control valve that forms part of a cooling circuit comprising a first branch which contains a radiator and a second branch that constitutes a bypass of a radiator, and its method of use, are described. When used in a motor vehicle combustion engine cooling circuit, the control valve has a third branch and has at least one unit heater for heating the vehicle cabin.
    Type: Application
    Filed: May 9, 2006
    Publication date: September 14, 2006
    Inventors: Matthieu Chanfreau, Daniel Virey
  • Control valve for cooling circuit
    Publication number: 20040173167
    Abstract: The control valve (10) comprises a body (12) having a fluid inlet (28), a first outlet (18) connected to a first branch of the circuit, a second outlet (20) connected to a second branch of the circuit and a third outlet (22) connected to a third branch of the circuit, as well as an adjustment member (34) suitable for taking in succession at least the following positions: a “bypass” position (P1), at which the first outlet (18) is open; a “radiator+bypass” position (P2; P3), at which the first outlet (18) and the second outlet (20) are open; a “radiator” position (P9), at which the second outlet (20) is open; a “radiator+unit heater” position (P4; P10), at which the second outlet (20) and the third outlet (22) are open; a “radiator+bypass+unit heater” position (P6; P7), at which the first outlet (18), the second outlet (20) and the third outlet (22) are open; a “unit heater+bypass” position (P5), at which the first
    Type: Application
    Filed: May 6, 2004
    Publication date: September 9, 2004
    Inventors: Matthieu Chanfreau, Daniel Virey