The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 26, 2006
Filed:
Jan. 27, 2005
Cédric Morin, Meudon, FR;
Emmanuel Sedda, Conflans Sainte Honorine, FR;
Christophe Baldi, Paris, FR;
Christophe Fageon, Montrouge, FR;
Raphaël Penet, Paris, FR;
Cédric Morin, Meudon, FR;
Emmanuel Sedda, Conflans Sainte Honorine, FR;
Christophe Baldi, Paris, FR;
Christophe Fageon, Montrouge, FR;
Raphaël Penet, Paris, FR;
Peugeot Citroen Automobiles SA, Velizy Villacoublay Cedex, FR;
Abstract
The invention relates to a valve operating apparatus comprising a ferromagnetic device connected to the valve and displaceable on a course by which at one end the valve is in the closed position and at another end it is in the open position. The displacement command is performed by means of a first and a second electromagnet and of springs so that the device will be near to the first electromagnet for the closed position and near to the second electromagnet for the open position. Each electromagnet comprises a permanent magnet holding the device at the corresponding end of its course in the absence of current in the winding of the electromagnet. To change the valve from its open position to its closing position or vice versa, a defluxing pulse is applied to the winding of the second or of the first electromagnet opposing the effect of the permanent magnet, the change being carried out, after this pulse, by the sole action of the spring means.