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. 18, 2003
Filed:
Sep. 14, 2000
Michael Krauss, Munich, DE;
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Abstract
A cooling system for an internal combustion engine has a pipeline leading from the internal combustion engine to a radiator, a return pipeline from the radiator to the internal combustion engine, a bypass line connecting the pipeline and the return pipeline, and a thermostat valve, through which the coolant is passed from the internal combustion engine through the bypass line and/or through the radiator back to the internal combustion engine, depending on the operating conditions. At least one temperature sensor is provided in the cooling system, and an output signal is supplied to a control unit. In the case of a change from a first operating condition, for which the coolant must be passed through the thermostat valve initially only through the bypass line, to a second operating condition, for which the coolant is permitted to flow through the thermostat at least partially through the radiator, the control unit checks whether an increase in the temperature of the coolant commences at the outlet of the radiator.