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:
May. 23, 2006
Filed:
Jan. 27, 2005
Cédric Morin, Meudon, FR;
Emmanuel Sedda, Conflans Sainte Honorine, FR;
Christophe Fageon, Montrouge, FR;
Christophe Baldi, Paris, FR;
Cédric Morin, Meudon, FR;
Emmanuel Sedda, Conflans Sainte Honorine, FR;
Christophe Fageon, Montrouge, FR;
Christophe Baldi, Paris, FR;
Peugeot Citroen Automobiles SA, Velizy Villacoublay, FR;
Abstract
The invention concerns a valve operating device for an internal combustion engine, comprising a means connected to the valve and able to be displaced on a course by which, at one end of this course, the valve is in the closed position and at the other end of the course this valve is in the open position. The displacement command is performed by means of a first and a second electromagnet and spring means such that the means is near to a first electromagnet for the closed position of the valve and near to the second electromagnet for the open position of the valve. The first electromagnet is of the polarized type with a permanent magnet permitting the means to be held in the position corresponding to the closed position of the valve in the absence of current in the winding of this first electromagnet. The second electromagnet is such that this position is maintained for a non-zero current in the winding of this second electromagnet.