Internal-combustion engines – Cooling – Automatic coolant flow control
Reexamination Certificate
2007-09-05
2008-09-16
Cronin, Stephen K. (Department: 3747)
Internal-combustion engines
Cooling
Automatic coolant flow control
C123S041440, C123S041540
Reexamination Certificate
active
07424869
ABSTRACT:
In a cooling circuit for an internal combustion engine of a motor vehicle including a pump device arranged upstream of the internal combustion engine, a cooler having an inlet side connected to a coolant outlet of the internal combustion engine and an outlet connected via a coolant line to the inlet side of the pump device, a cooler bypass line extending from the outlet side of the internal combustion engine to the inlet side of the pump device while bypassing the cooler and a switching valve arranged in the coolant line between the cooler and the pump device, a switching valve bypass duct is provided bypassing the switching valve and including a valve device which is open when the engine is shut down for reliable ventilation of the second coolant line during filling of the cooling circuit.
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Bach Klaus J.
Cronin Stephen K.
Daimler AG
Vilakazi Sizo B
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