Variable-nozzle turbocharger with integrated bypass

Details Variable-nozzle turbocharger with integrated bypass Variable-nozzle turbocharger with integrated bypass

2007-07-31

2007-07-31

Nguyen, Ninh H. (Department: 3745)

Rotary kinetic fluid motors or pumps

Working fluid bypass

Selectively adjustable vane or working fluid control for bypass

C415S156000, C415S157000, C060S602000

Reexamination Certificate

active

11289217

ABSTRACT:
A turbine housing assembly includes a tubular piston disposed in a bore of a turbine housing and axially slidable between a closed position and an open position for blocking a nozzle by an amount dependent on axial positioning of the piston. A bypass control member is disposed in the turbine housing and is slidable between a no-bypass position closing a bypass passage and a open bypass opening the bypass passage. The piston is structured and arranged to slide relative to the bypass control member for a part of a full stroke of the piston from the closed position toward the open position thereof, and then to engage the bypass control member and cause the bypass control member to slide together with the piston as the piston further slides toward the open position thereof such that the bypass control member is moved toward the bypass position.

REFERENCES:
patent: 4445815 (1984-05-01), Fortmann
patent: 4499731 (1985-02-01), Moser
patent: 5855117 (1999-01-01), Sumser et al.
patent: 2006/0037317 (2006-02-01), Leavesley
patent: WO2004048755 (2004-06-01), None
patent: WO2006102912 (2006-10-01), None
PCTISR, Mar. 16, 2007, Honeywell.

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