COMPRESSOR AND METHOD FOR SERVICING
1 Assignment
0 Petitions
Accused Products
Abstract
A compressor has a diffuser section with one or more detachable wall portions that define a diffuser surface. The wall portions may be detachably connected to an intermediate portion of the compressor housing between the inlet and outlet and/or to the bearing housing of a turbocharger to which the compressor housing is connected. The diffuser wall portions can be easily detached once the compressor housing is removed so as to allow cleaning of deposits or simple replacement. This provides for easy servicing to avoid the compressor performance being compromised by a built up of deposits and particulates on the diffuser surfaces that is a particular problem in turbochargers that receive recirculated crank case ventilation gases from the engine.
17 Citations
42 Claims
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1-24. -24. (canceled)
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25. A method for servicing a compressor having a compressor housing defining an inlet, an outlet and an intermediate portion, comprising detaching at least one wall portion from the intermediate portion, the at least one wall portion defining at least part of a diffuser surface, and attaching at least one clean wall portion.
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28. A method for servicing a compressor having a compressor housing defining an inlet and an outlet and an intermediate portion, the compressor housing being connected to a bearing housing in which a shaft of the compressor is supported in bearings, a diffuser portion being defined between the intermediate portion of the compressor housing and the bearing housing, comprising separating the compressor and bearing housings and detaching at least one wall portion from at least one of the intermediate portion and the bearing housing, the at least one wall portion defining at least part of a diffuser surface of the compressor, and attaching at least one clean wall portion.
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31. A compressor comprising a housing for an impeller wheel that is rotatable about an axis, the housing defining a gas inlet, a gas outlet and an intermediate portion between the inlet and outlet, the intermediate portion defining a first surface across which outer edges of the impeller wheel sweep during rotation, and a diffuser section provided by a first diffuser surface extending towards the outlet, the diffuser section having at least one first wall portion that defines a surface that forms at least part of the first diffuser surface, the at least one first wall portion being detachably connected to the intermediate portion of the housing, the surface defining at least one aerodynamic, axially projecting vane.
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42. A bearing housing for connection to a compressor housing of a turbocharger, the bearing housing having at least one detachable wall portion defining at least part of a diffuser surface for location opposite a diffuser surface of the compressor housing.
Specification