Air bearing turbo cooling air flow regulating device

Details Air bearing turbo cooling air flow regulating device Air bearing turbo cooling air flow regulating device

2007-07-13

2010-11-23

Trieu, Thai Ba (Department: 3748)

Power plants

Fluid motor means driven by waste heat or by exhaust energy...

With supercharging means for engine

C060S605100, C137S528000, C137S625500, C251S031000, C251S063000, C251S063500, C251S063600, C251S033000, C417S407000, C417S366000

Reexamination Certificate

active

07836694

ABSTRACT:
A cooling air flow regulating device for controlling the flow of cooling air to an air bearing may comprise a housing with a piston and a spring disposed within. When the pressure of the cooling air is high, the piston is forced out of the path of the cooling air and into an open position. As the pressure of the cooling air decreases, the spring forces the piston back into the path of the cooling air, effectively blocking the flow of cooling air to the air bearing. The cooling air flow regulating device of the present invention may be useful for controlling the cooling of air bearings in turbochargers of turbocharged engine, where at low engine speed, cooling air is not required for air bearings. Methods for using the cooling air flow regulating device of the present invention are also provided.

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James F. Walton II, Oil-Free Turbocharger Demonstration Paves Way to Gas Turbine Engine Applications, Paper 2000-GT-0620, Germany, May 8-11, 2000.

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