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. 23, 1999
Filed:
May. 08, 1997
Applicant:
Inventors:
Ngy Srun Ap, St. Remy les Chevreuse, FR;
Philippe Jouanny, Maurepas, FR;
Assignee:
Valeo Thermique Moteur, Le Mesnil-Saint Denis, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01P / ;
U.S. Cl.
CPC ...
123 4114 ;
Abstract
The cooling circuit of an internal combustion engine of a vehicle includes a thermally insulated reservoir having an inlet duct and an outlet duct. These ducts are connected to the mass of air in a head space either within the expansion vessel in the cooling circuit or within the reservoir itself, in such a way that the inlet and outlet ducts become filled with air when the motor is stopped. This air then physically separates the liquid in the reservoir from that contained in the rest of the circuit, so reducing heat losses.