A method of reducing high cycle fatigue of a turbocharger fitted to an internal combustion engine in which fuel supply to the engine is controlled by an electronic engine management unit (ECU) in accordance with a fuel map of fuel values required to meet d...

A turbocharger comprises a turbine wheel (4) mounted to a seal boss (19) provided at one end of a shaft (8) and a compressor wheel (6) mounted to the other end of the shaft (8). The shaft (8) rotates on bearing assemblies (13,14) housed within a bearing ho...

A turbine comprises a turbine wheel (11) having radial blades and supported in a housing (1) for rotation about an axis (12). An annular inlet passageway (4) extends radially inwards towards the turbine wheel, the inlet passageway (4) being defined between...

A turbocharger variable geometry turbine of the type which includes nozzle vanes displaceable across the turbine inlet flow path into slots. The vanes have cutouts which reduce the vane cord and permit peak turbine efficiency over a range of geometries.

A control system for an exhaust brake which operates to impede exhaust flow from a turbocharged combustion engine when the engine throttle is closed. The control system includes means for delaying application the exhaust brake only when the vehicle throttl...

Apparatus for mixing together two fluid streams comprises a first fluid conduit for carrying a first fluid stream between an inlet and an outlet, a venturi being provided in said first fluid conduit between said inlet and said outlet. The venturi comprises...

This invention relates to an actuator assembly for a turbocharger pressure control valve assembly (14) and a method of assembling a pressure control assembly of a turbocharger. The assembly comprises an actuator (21) coupled to an actuator rod (22) which i...

Oil slinger for incorporation in a system for sealing the passage o f a rotating shaft (3) through an opening. The oil control device comprises an annular member (10) for rotation with said shaft (3) and provided with a circumferentially spaced array of pa...