Power plants – Fluid motor means driven by waste heat or by exhaust energy... – With supercharging means for engine
Reexamination Certificate
2005-09-19
2010-10-05
Denion, Thomas (Department: 3748)
Power plants
Fluid motor means driven by waste heat or by exhaust energy...
With supercharging means for engine
C060S615000, C123S564000
Reexamination Certificate
active
07805940
ABSTRACT:
There is described an exhaust gas turbocharger which comprises a compressor and a turbine having an adjusting drive for adjusting a turbine geometry. A performance characteristic is determined depending on a turbine output, a mass flow through the turbine and a gas temperature upstream of the turbine. A mass flow characteristic is determined depending on the mass flow through the turbine and the gas temperature upstream of the turbine and a gas pressure downstream of the turbine. Depending on the performance characteristic and the mass flow characteristic, an adjuster position of the adjusting drive for adjusting the turbine geometry is determined using a characteristic diagram. For control, an adjusting signal for controlling the adjusting drive is determined depending on the adjuster position for adjusting the turbine geometry. For diagnosis of the exhaust gas turbocharger, the exhaust gas turbocharger is diagnosed depending on the adjuster position.
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Burkhardt Thomas
Teiner Markus
Denion Thomas
Duff Douglas J.
K&L Gates LLP
Siemens Aktiengesellschaft
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