External blow off conversion of compressor recirculation valve
a compressor and recirculation valve technology, applied in the field of compressors, can solve the problems of affecting the operation and life of the turbocharger, the kit is relatively expensive, and the compressor is prone to premature failure, and achieves the effect of minimal disturbance of the oem equipmen
Active Publication Date: 2005-05-19
FCA US
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AI Technical Summary
Benefits of technology
The invention provides an external blow-off adaptor for a turbocharger compressor with an internal recirculation valve. This adaptor can be easily installed between the recirculation valve and the valve mounting flange to create a desirable sound when the recirculation valve is operating in recirculation mode. The adaptor allows for minimal disturbance of the OEM equipment and can be used with an existing controller for the recirculation valve. The technical effect of the invention is to provide an improved method for controlling the recirculation valve and achieving a desirable sound during operation.
Problems solved by technology
During certain operations, such as shifting gears in a transmission attached to the engine, when the vehicle operator releases pressure on the accelerator pedal of the vehicle, the compressor becomes unloaded, and can experience undesirable forces on blades of the compressor that could lead to premature failure of the compressor.
Such kits are relatively expensive, and may require replacement of the OEM parts, and altering operation in a manner that adversely affects operation and life of the turbocharger.
Method used
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Embodiment Construction
[0029]FIGS. 4-6 show an exemplary embodiment of an external blow-off conversion apparatus 50, for a turbocharger compressor recirculation valve 24 adapted for attachment to a valve mounting flange 28 defining a recirculation valve inlet port 32 and a recirculation valve outlet port 34. By way of example, the recirculation valve 24 and valve mounting flange 28 shown in FIGS. 4 and 5 are identical in form and function to the valve shown in FIGS. 2 and 3, but this should not be considered limiting of the invention. The recirculation valve inlet port 32 is connected in fluid communication to an outlet 20 of the turbocharger compressor 16, and the recirculation valve outlet port 34 is connected to an inlet 18 of the turbocharger compressor 16, in the same manner as described above in relation to the prior turbocharger 10 shown in FIG. 1.
[0030] Without the external blow-off apparatus 50, the recirculation valve inlet and outlet ports 32, 34 are selectively connected to one another by the...
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A method and apparatus provide external blow-off in a turbocharger having an internal recirculation valve configured for attachment to a valve mounting flange defining a recirculation valve inlet port connected in fluid communication with an outlet of a compressor of the turbocharger, and a recirculation valve outlet port connected to an inlet of the compressor, through use of an external blow-off adaptor that is configured for installation between the internal recirculation valve and the valve mounting flange. The external blow-off adapter is configured for producing a desirable sound when the recirculation valve is operating in the recirculation mode with the external blow-off adaptor installed between the recirculation valve and the valve mounting flange.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application claims the benefit of U.S. Provisional Patent Application Ser. No. 60 / 523,073, filed Nov. 18, 2003.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH [0002] Not applicable. BACKGROUND OF THE INVENTION [0003] 1. Field of the Invention [0004] The invention relates to compressors, and more particularly to compressors of the type used for turbocharging engines, where the turbocharger includes an internal recirculation valve. [0005] 2. Description of Related Art [0006] Turbochargers have been used for many years for enhancing the performance of engines used in vehicles, such as automobiles, pick-up trucks, sport utility vehicles, and tractors. [0007] As shown in FIG. 1, such turbochargers 10 typically include a turbine 12 driven by exhaust gas from the engine 14, and a compressor 16 driven by the turbine 12 of the turbocharger 10. The compressor 16 has an inlet 18 for ingesting air at atmospheric pressure, and an outlet 20 con...
Claims
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IPC IPC(8): F02B37/16F04D25/04F04D27/02
CPCF02B37/16Y02T10/144F04D27/0215F04D25/04Y02T10/12
Inventor BAYER, ETHANKULICK, JACKSZADYR, PETER
Owner FCA US