Flow compressor, in particular for the supercharging of internal combustion engine
A technology for compressors and internal combustion engines, which is applied in the direction of machines/engines, liquid fuel engines, and parts of pumping devices for elastic fluids, and can solve the problems of adding sound shielding rings to fluid compressors
Inactive Publication Date: 2013-06-12
VOITH PATENT GMBH
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Problems solved by technology
Disadvantageously, it is not possible to retrofit such sound shielding rings to existing fluid compressors, or only by reworking or replacing the housing and / or flange components, which incurs additional costs
Method used
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[0036] In FIG. 2 , the compressor impeller 3 rotating on the compressor shaft 4 is shown in axial section through the compressor housing 1 . In the region of the compressor inlet 5 , a connecting flange 2 is connected to the compressor housing 1 in order to connect an air line for the air to be compressed as a compressor medium (not shown) to the compressor housing 1 .
[0037] The areas that guide the compressor medium (air) are shown in black, see fluid guide area 6 on the suction side and fluid guide area 7 on the charge side.
[0038] The fluid guide area 6 on the suction side comprises an inflow channel 8 extending from the compressor inlet 5 to the compressor wheel 3 and at the outside of the inflow channel 8 (here radially outside) from the compressor wheel-side end to the inflow channel The recirculation channel 9 extends from the end of the inlet side of the compressor 8 . In order to connect the recirculation channel 9 to the inflow channel 8, a recirculation slot 1...
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A flow compressor, in particular for the supercharging of an internal combustion engine, has a compressor housing; a compressor rotor which is rotatably mounted in the compressor housing; an inflow duct for the medium to be compressed, which inflow duct extends in the flow direction of the medium to be compressed from a compressor inlet to the compressor rotor; a recirculation duct for the medium to be compressed, which recirculation duct branches off from the inflow duct in the region of the compressor-rotor-side end of the inflow duct and opens out in the inflow duct in the region of the compressor-inlet-side end; a sound shielding ring which is inserted in the inflow duct and / or in the recirculation duct in the region of the compressor-inlet-side end in order to shield against sound waves of the medium to be compressed which flows back via the recirculation duct; wherein the sound shielding ring is inserted in a positively locking manner in the compressor housing by means of a snap-action connection. The invention is characterized in that: the sound shielding ring has a multiplicity of detent projections which engage into an undercut of the compressor housing; the sound shielding ring has a multiplicity of tongues which are connected to a circumferentially encircling annular main body and which are provided with the detent projections, and the tongues project from the compressor-inlet-side end into the recirculation duct in the direction of the compressor rotor.
Description
technical field [0001] The invention relates to a fluid compressor according to the preamble of claim 1 , in particular for loading an internal combustion engine. Background technique [0002] A fluid compressor of this type is driven, for example, by means of an exhaust gas turbine, wherein the fluid compressor and the exhaust gas turbine can be arranged on a common shaft, thus forming a turbocharger. However, it is also conceivable to drive the fluid compressor mechanically, for example by means of a crankshaft of an internal combustion engine which is to be supplied with fluid by the fluid compressor. Finally, the invention can also be applied to fluid compressors other than for loading internal combustion engines. [0003] In order to expand the range of properties of the compressor, it is known to provide so-called recirculation slots for the medium to be compressed, in particular air, in the compressor wheel-side end of the inflow channel in the housing of the compres...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F04D29/42F04D29/68
CPCF04D29/4213F04D29/663F04D29/685F05D2220/40
Inventor 克里斯蒂安·格罗特
Owner VOITH PATENT GMBH