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:
Oct. 29, 2002
Filed:
Dec. 22, 2000
Ngy Srun Ap, Saint Remy les Chevreuse, FR;
Mathieu Chanfreau, Paris, FR;
Arnaud Maire, Montigny le Bretonneux, FR;
Valeo Thermique Moteur, La Verriere, FR;
Abstract
A cooling circuit for a vehicle engine, traveled by fluid under pump action, comprises a cooling branch with a radiator associated with a motor-driven fan unit, and a heating branch containing an air heater. A first device establishes a hot-starting state of the engine as a function of chosen conditions; and a second device, active in this hot-starting state, controls the speed of the pump and the speed of the motor-driven fan unit under chosen conditions, as a function of a first magnitude representative of the temperature of the fluid and of a second magnitude representative of the heating demand.