Internal-combustion engines – Cooling – Parallel flow
Reexamination Certificate
2007-07-03
2007-07-03
Kamen, Noah P. (Department: 3747)
Internal-combustion engines
Cooling
Parallel flow
C123S041440
Reexamination Certificate
active
11334046
ABSTRACT:
In an internal combustion engine for a motor vehicle, having a cylinder head and an engine block, each with a coolant inlet port and a coolant outlet port which is common to the cylinder head the engine block, a main coolant pump having an intake side connected to the coolant outlet port and a pressure side connected to a first control valve via which coolant reaches the inlet port of the cylinder head and the inlet port of the engine block depending on the temperature of the coolant, and to a method for operating such an internal combustion engine, wherein the main coolant pump is selectively actuated to pump the coolant through at least one of the cylinder head and the engine block or is shut down depending on the engine operating state.
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Pfeffinger Harald
Sass Heiko
Bach Klaus J.
Daimler-Chrysler AG
Kamen Noah P.
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