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. 15, 2007
Filed:
Apr. 24, 2006
Gunnar Theorell, Lerum, SE;
Gunnar Theorell, Lerum, SE;
Volvo Lastvagnar AB, Göteborg, SE;
Abstract
A cooling system for an internal combustion engine mounted in a vehicle includes a first flow circuit with a pump for circulating coolant via ducts in the cylinder block of the engine and a radiator. The first flow circuit is separated from atmospheric pressure. The cooling system also includes a second flow circuit which is provided with a coolant reservoir with a normal pressure which is lower than the pressure in the first flow circuit, and a pump for circulating coolant via a pipeline between units with a cooling requirement and a second radiator. The second flow circuit is connected to the first flow circuit via a one-way valve opening in the direction of the first flow circuit.