Power plants – Fluid motor means driven by waste heat or by exhaust energy... – With supercharging means for engine
Patent
1985-02-25
1987-11-03
Chambers, A. Michael
Power plants
Fluid motor means driven by waste heat or by exhaust energy...
With supercharging means for engine
137 811, 1371165, F02D 2300
Patent
active
047036257
ABSTRACT:
An altitude compensating turbocharger control system including a boost regulator 54 for modifying a wastegate signal as a function of turbocharger output pressure and ambient pressure. The regulator includes a housing 52 that mounts a valve assembly 60 including a controller 98 for controlling the communication of an input chamber 94 with an output chamber 96 and the communication of the output chamber 96 with an ambient pressure port 82. The housing also mounts an aneroid capsule 62 and a force transmitting arm 70 for transferring and amplifying ambient pressure related forces generated by the aneroid capsule 62 to the controller. The pressure in the output chamber is a function of both input pressure and the atmospheric pressure sensed by the aneroid capsule and is communicated via a port 84 to a wastegate actuator 30 which opens and closes a wastegate valve 28. Changes in atmospheric pressure sensed by the aneroid capsule causes the controller to modify the pressure in the output chamber to compensate for a change in biasing force on a wastegate actuator diaphragm 34 that occurs as a result of changes in atmospheric pressure.
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Chambers A. Michael
Ranco Incorporated
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