Internal-combustion engines – Charge forming device – Supercharger
Reexamination Certificate
2007-11-20
2007-11-20
Denion, Thomas (Department: 3748)
Internal-combustion engines
Charge forming device
Supercharger
C060S600000, C060S605100, C060S605200, C060S611000, C060S614000, C060S615000, C060S624000, C060S273000, C123S568110, C123S568220, C123S672000, C123S676000, C123S677000, C123S678000, C123S687000
Reexamination Certificate
active
11392571
ABSTRACT:
A control system for estimating the performance of a compressor is disclosed. The control system has a compressor fluidly connected to an inlet manifold of a power source. The control system also has a power source speed sensor to provide an indication of a rotational speed of the power source, an inlet pressure sensor to provide an indication of a pressure of a fluid within the inlet manifold, an inlet temperature sensor to provide an indication of a temperature of the fluid within the inlet manifold, an atmospheric pressure sensor to provide an indication of an atmospheric pressure, and a control module in communication with each of the sensors. The control module is configured to monitor an engine valve opening duration and an exhaust gas recirculation valve position, and estimate a compressor inlet pressure based on the provided indications, the monitored duration, and the monitored position.
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PCT International Search Report; PCT/US2007/003633; International Filing Date: Feb. 9, 2007; Priority Date: Mar. 30, 2006; Applicant: Caterpillar Inc.; Applicant's Ref. No. 05-537.
Dea Kevin L.
Donoho, II Michael R.
Gehrke Christopher R.
Withrow Michael P.
Caterpiller Inc.
Denion Thomas
Duff Douglas J.
Finnegan Henderson Farabow Garrett & Dunner
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