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AssigneeTurbodyne Systems, Inc.
InventorsBevan H. Johnston, Edward M. Halimi, William E. Woollenweber
Estimating the term…
In a unique turbocharger shaft bearing system, a thrust bearing is provided inboard of the compressor end shaft bearing. Removable parts of the turbocharger housing permit assembly of a first thrust bearing part with an outwardly extending flange forming at least one thrust bearing interface to be fastened to the rotating shaft for rotation therewith and a separate stationary thrust bearing part to be carried by the housing, providing thrust bearing interface for the thrust bearing interface of the rotating first thrust bearing part inboard of the compressor end of shaft bearing. The removable parts can include a separate supporting member for the compressor end shaft bearing. The remainder of the turbocharger housing supports the second shaft bearing adjacent its turbine end and, through the separate bearing supporting member, the first shaft bearing. The thrust bearing can also include a second rotating thrust bearing part carried by and rotating with the rotating shaft and providing an outwardly extending flange adjacent its turbine end spaced from the outwardly extending flange of the first rotating thrust bearing part and forming a second thrust bearing interface so the thrust bearing interface of the first rotating thrust bearing part can engage the separate stationary thrust bearing member on its compressor side while the thrust bearing interface of the second rotating thrust bearing part engages the thrust bearing member on its turbine side. Providing a thrust bearing inward of the compressor end shaft bearing minimizes bearing overhang, allows an increase in distance between the two shaft bearings, and improves bearing systems stability.
A motor-assisted turbocharger assembly for an internal combustion engine, comprising a compressor wheel and turbine wheel mounted at opposite ends of a rotating shaft, a first bearing adjacent the compressor end of the rotating shaft, a second bearing adjacent the turbine end, of the rotating shaft, a thrust bearing for said rotating shaft between said first and second bearings, a housing carrying said first and second bearings and said rotating shaft, an assisting electric motor in the compressor end of said assembly, an exhaust gas volute for directing exhaust gas from the internal combustion engine into the turbine wheel and a compressor casing for receiving compressed air from the compressor wheel.
In a motor-assisted turbocharger wherein an assisting electric motor and a compressor rotor are carried at one end of a rotating shaft outboard of a compressor end bearing with an exhaust gas turbine and turbine end bearing at the other end of the rotating shaft, the improvement comprising a thrust bearing assembly for the rotating shaft located between the compressor end bearing and turbine end bearing.
A turbocharger assembly for an internal combustion engine, comprising a compressor wheel and turbine wheel mounted at opposite ends of a rotating shaft, a first bearing adjacent the compressor end of the rotating shaft, a second bearing adjacent the turbine end of the rotating shaft, a thrust bearing assembly for said rotating shaft between said first and second bearings, and a housing carrying said first and second bearings and said rotating shaft,
A turbocharger assembly for an internal combustion engine, comprising a compressor wheel and turbine wheel mounted at opposite ends of a rotating shaft, a first bearing adjacent the compressor end of the rotating shaft, a second bearing adjacent the turbine end of the rotating shaft, a thrust bearing assembly for said rotating shaft between said first and second bearing, and a housing carrying said first and second bearings and said rotating shaft, said rotating shaft having a reduced diameter portion at its compressor end carried by said first bearing and a larger diameter portion at its turbine end carried by said second bearing and a thrust bearing engagement surface between said first and second shaft portions.
A turbocharger assembly for an internal combustion engine, comprising
Dependencies are inferred from the claim text.