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US 7,270,090 B2Granted
Control system for engine cooling
AssigneeFord Global Technologies, LLC
InventorGopichandra Surnilla
Life of this patent
Estimating the term…
Abstract
An engine cooling system is described that uses the same actuator to adjust both fan speed and coolant pump speed based on operating conditions of the engine and vehicle. The airflow and coolant flow are thus dependent, however, they are independent from engine speed.
Claims22
A cooling system for an engine comprising:
- an electronically controlled actuator responsive to a control signal;
- a variable speed fan coupled to said actuator that adjusts airflow in the engine due to action of said actuator;
- a variable speed pump coupled to said actuator that adjusts coolant flow through the engine due to action of said actuator;
- and
- a controller for generating said signal based on an engine operating condition, said actuator to adjust said fan and pump throughout the entire range of engine operation.
2 more elements
A cooling system for an engine comprising:
- an electronically controlled actuator adapted to receive an electrical control signal that varies with operation of the engine;
- a fan mechanically coupled to said actuator, said fan adjusted by said actuator;
- and
- a coolant adjusting mechanism mechanically coupled to said actuator, said mechanism and fan adjusted by said actuator throughout the entire range of engine operation.
1 more element
Dependencies are inferred from the claim text.