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:
Jul. 01, 2008
Filed:
Sep. 29, 2006
Carsten Heldberg, Kirchlinteln-Ostersen, DE;
Carsten Heldberg, Kirchlinteln-Ostersen, DE;
ITW Automotive Products GmbH & Co. KG, Iserlohn, DE;
Abstract
A cooling system for a combustion engine having a cooling passage system in an engine block comprising a main cooler HWK which is arranged in a cycle with the cooling passage system of the combustion engine, a water pump and a first thermostat THin said cycle, a hot water heat exchanger HWT which is connected to the water pump 12 through a bypass and a bypass valve, a second thermostat THin the bypass passage, the opening temperature of the thermostat valve of the second thermostat THis significantly lower than the opening temperature of the thermostat valve of the first thermostat TH, the thermostats being arranged such that upon closed thermostat valve B of the second thermostat THbelow its opening temperature a minimum amount of water flows through the cooling passage system through the heat exchanger HWT, upon opened thermostat valve B of the second thermostat THa larger amount of water flows through the cooling passage system from its opening temperature on and upon the opening temperature of the thermostat valve A of the first thermostat THa thermostatic control takes place through the first thermostat THand the main cooler HWK whereby the amount of cooling fluid is progressively increased from the opening of the thermostat valve B of the second thermostat THon and/or least a further heat exchanger MÖK, GÖK is connected.