Heater system for the passenger compartment of a motor vehicle
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United States of America Patent
Stats
-
Mar 3, 1992
Grant Date -
N/A
app pub date -
Sep 6, 1990
filing date -
Sep 11, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A heater system for the passenger compartment of a motor vehicle comprises a number of heat exchange elements arranged in a stack. Flow of engine coolant through each of the heat exchange elements is individually controlled by valve means having a coolant inlet and a coolant outlet and which includes a valve member which can progessively open the flow of coolant to the heat exchange elements by uncovering staggered supply orifices. The heat exchange elements are in parallel with a bypass passage which allows flow from the coolant inlet to the coolant outlet through a bypass orifice. The bypass orifice becomes progressively blocked as the valve member uncovers the supply orifices.
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Family
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