Garrett Transportation I Inc.

Ludek Pohorelsky

Stephane Pees

Hani Mohtar

Peter Rhys Davies

Miroslav Protiva

Pavel Bares

Gareth Owen

Lenardo Burton

Dusan Racek

Louis Worth

Jan Blecha

Martin Fajkus

A turbine housing assembly can include an inlet conduit portion that defines an inlet passage, where the inlet passage is in fluid communication with a cavity via an opening surrounded by a valve seat; a volute portion that defines a volute that is in fluid communication with the inlet passage and a turbine wheel space; a valve, where a shaft is rotatably supported by a bushing disposed in a bore and where, in a closed state of the valve, an arm is disposed in the cavity; and a controller operatively coupled to a control arm to transition the valve between the closed state and an open state, where, in the open state, a plug moves into the inlet passage to restrict flow between an inlet opening and a volute and to direct flow to the cavity, where the cavity is in fluid communication with a treatment unit.

Turbocharger turbine housing assembly

A method for controlling an inlet-adjustment mechanism in an air inlet for a compressor so as to switch the mechanism in a binary fashion between open and closed positions for adjusting a flow area of the inlet. The method includes identifying a threshold line on a compressor map of pressure ratio versus corrected flow rate for the compressor, at which the inlet-adjustment mechanism is switched from one of its positions to the other. A fixed switch band straddling the threshold line can be used for determining when to initiate the switch of positions so as to time the switch to coincide with the operating point reaching the threshold line. Alternatively, a time to reach the threshold line can be instantaneously computed and compared to the actuator/mechanism response time.

Method for controlling a trim-adjustment mechanism for a centrifugal compressor

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Otnice, Czechia

Ludek Pohorelsky