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Assignee: Holset Engineering Company, Ltd.


Location: Huddersfield, GB
No. of patents: 21

NumberTitleIssue Date
7823385Turbocharger with wastegate
This invention relates to an actuator assembly for a turbocharger pressure control valve assembly and a method of assembling a pressure control assembly of a turbocharger. The assembly comprises an actuator coupled to an actuator rod which in use is coupled to the v...
11/02/2010
7461629Exhaust brake control system
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 throttle is close...
12/09/2008
7210295Compressor with secondary boost air outlet passage
A wastegated turbocharger includes a turbine wheel mounted to a shaft for rotation within a turbine housing and a compressor wheel mounted to the shaft for rotation within a compressor housing. The compressor housing has mounted thereto a wastegate actuator command ...
05/01/2007
7165401Turbocharger with wastegate
This invention relates to an actuator assembly for a turbocharger pressure control valve assembly and a method of assembling a pressure control assembly of a turbocharger. The assembly comprises an actuator coupled to an actuator rod which in use is coupled to the v...
01/23/2007
7140849Variable geometry turbine
A variable geometry turbocharger comprises a turbine wheel (20) mounted within a turbine housing (23) on one end of a turbocharger shaft (22) for rotation about a turbocharger axis. The turbine housing (23) defines an annular turbine inle...
11/28/2006
6931849Variable geometry turbine
A variable geometry turbine having a inlet passageway defined between a moveable wall member and a radial wall. The moveable wall member is moveable to vary the width of the inlet passageway. At least one bypass passage is formed in one of the moveable wall member a...
08/23/2005
6905316Turbine
A turbocharger in which a drive shaft supports at one end a turbine driven by exhaust gases from an internal combustion engine. The end of the drive shaft remote from the turbine supports a drive connection which is coupled to an output shaft of the driving engine. ...
06/14/2005
6779971Turbine
A turbine in which a turbine wheel is mounted in a housing between an inlet and an outlet. Rotatably mounted vanes are located in the inlet and coupled by linkages to an actuator which is displaceable relative to the vanes so as to control the angular orientation of...
08/24/2004
6776574Variable geometry turbine
A variable geometry turbine in which a turbine wheel is mounted to rotate about a pre-determined axis within a housing. A sidewall is displaceable relative to a surface of the housing to control the width of a gas inlet passage defined adjacent the wheel between the...
08/17/2004
6718767Variable geometry turbocharger control system
A control system for a variable geometry turbocharger having a turbine driven by exhaust gas delivered to an exhaust gas inlet of the turbocharger from an engine exhaust manifold and a compressor driven by the turbine to deliver air to an engine intake manifold via ...
04/13/2004
6652224Variable geometry turbine
A turbocharger variable geometry turbine of the type which includes nozzle vanes displaceable across the turbine inlet flow path into slots. The vanes have cut-outs which reduce the vane cord and permit peak turbine efficiency over a range of geometries....
11/25/2003
6540480Compressor
A compressor comprises a housing (4, 5) defining an inlet (6) and an outlet (15, 7), and a compressor wheel (8) mounted for rotation about a shaft (9a) within a chamber defined by the housing between the inlet (6) and the outlet (7). The back of the compr...
04/01/2003
6405535Turbocharger with wastegate actuator
A turbocharger comprises a compressor wheel (6) mounted within a compressor housing (5) having a pressurized air outlet, a control valve (12) for regulating the pressure of air supplied from the compressor housing outlet, and pressure operated actuating m...
06/18/2002
6401563Actuating mechanism for a slidable nozzle ring
A linkage mechanism for linking for example actuator rods to the nozzle ring of a variable geometry turbine. First and second components of the mechanism are interconnected by at least two links which are displaceable in a predetermined direction relative...
06/11/2002
6264424Relating to compressors and turbines
A centripetal compressor includes a compressor housing, a compressor wheel mounted within the housing and having compressor blades. The compressor housing comprises a cover plate and a diffuser flange that is fixed to both the cover plate and to a bearing...
07/24/2001
6203272Variable geometry turbine
A variable geometry turbocharger for an internal combustion engine in which the position of the nozzle ring is adjusted to control the width of an exhaust gas inlet passage. A chamber is defined behind the nozzle ring which communicates with the inlet pas...
03/20/2001
5975845Turbomachinery abradable seal
A centripetal turbine (1) comprises a housing (3) and a turbine wheel (4) mounted within the housing (3) and having turbine blades (5). The housing (3) defines an annular inlet passageway (7) arranged around a portion of the turbine wheel (4), and an outl...
11/02/1999
5941684Variable geometry turbine
A variable geometry turbine comprising a housing, a turbine wheel mounted to rotate about a pre-determined axis within the housing, and a gas inlet passage to the turbine. The gas inlet passage is defined between a fixed wall and an annular sidewall which...
08/24/1999
5579643Turbocharger with annular bypass
A turbocharger in which a turbine wheel located in a turbine chamber is driven by an exhaust gas flow. A bypass passageway extends around the chamber to enable exhaust gas to be diverted away from the turbine wheel. A valve is mounted in the bypass passag...
12/03/1996
5522697Load reducing variable geometry turbine
A variable geometry turbine comprising a housing 1 including an annular cavity 19 which supports a moveable annular wall member 5. An annular turbine inlet passageway 4 is defined between an end face of the moveable wall member 5 and a facing wall 6 of th...
06/04/1996
5366411Flexible coupling incorporating elastomeric elements with embedded bushes
A flexible coupling in which segmented elastomeric coupling elements are fixed to radially extending from immovable flanges on annular inner and outer coupling members by a fastening system. A plurality of bushes in the elastomeric elements receive bolts ...
11/22/1994
 
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