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:
Mar. 03, 2015
Filed:
Jun. 02, 2009
Jean-baptiste Gouriet, Evere, BE;
Jean-claude Habumuremyi, Haaltert, BE;
Stephane Leonard, Brussels, BE;
Volodia Naydenov, Louvain-la-neuve, BE;
Jean-Baptiste Gouriet, Evere, BE;
Jean-Claude Habumuremyi, Haaltert, BE;
Stephane Leonard, Brussels, BE;
Volodia Naydenov, Louvain-la-neuve, BE;
Inergy Automotive Systems Research (Société), Brussels, BE;
Abstract
Process for starting an SCR system intended for transporting urea from a tank to the exhaust gases of an engine using a feed line, this system comprising a rotary pump controlled by a controller and driven by a brushless direct current (BLDC) motor that comprises a rotor equipped with at least one permanent magnet and with a stator comprising at least 3 electromagnetic coils in which the direct current can flow according to a given sequence to make the rotor rotate, according to which, before starting the pump, a temperature is measured using a sensor and if this temperature is below a setpoint temperature, before making the rotor rotate, the current is passed through at least one of the coils in a way such that it preheats the pump without making the rotor rotate.