Power plants – Fluid motor means driven by waste heat or by exhaust energy... – With supercharging means for engine
Reexamination Certificate
2006-02-14
2006-02-14
Nguyen, Hoang (Department: 3748)
Power plants
Fluid motor means driven by waste heat or by exhaust energy...
With supercharging means for engine
C060S605100, C060S611000
Reexamination Certificate
active
06996986
ABSTRACT:
A control system of this invention for use with a variable geometry turbocharger is designed to enable turbocharger control based solely on engine speed. The control system takes measured engine speed and sends the same to an engine control unit (ECU) having an actuator position v. engine speed map. The ECU utilizes only the measured engine speed to determine a desired actuator position from the map, and produces a control signal for effecting actuator operation. The control signal generated by the ECU can be converted to an analog signal by pulse width modulation, for example. The control signal is sent to an actuator for placing the actuator into the desired actuator position. The actuator is connected to a variable geometry member in the turbocharger so that operation and placement of the actuator into the desired actuator position thereby places the variable geometry member into a desired position to effect the desired change in turbocharger operation. In an example embodiment, the variably geometry member is a number of movable vanes that can be positioned to change the amount of exhaust gas flow directed to a turbine wheel of the turbocharger.
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Honeywell International , Inc.
James Chris
Nguyen Hoang
LandOfFree
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