Patent
Diffuser including vaneless and vaned sections
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TLDR
In this article, a vaneless diffuser is used for reducing supersonic fluid flow to subsonic speed and a multichannel diffuser section for achieving maximum pressure recovery and delivering the fluid to a suitable collector.Abstract:
A diffuser for use in turbomachinery to improve overall efficiency, the diffuser including a vaneless diffuser section for reducing supersonic fluid flow to subsonic speed and a multichannel diffuser section for achieving maximum pressure recovery and delivering the fluid to a suitable collector, one of the diffuser sections providing a flow path of decreasing and then increasing cross section configured to minimize boundary layer losses.read more
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Centrifugal compressor hub containment assembly
Chi F. Chan,Steven J. Pringnitz +1 more
TL;DR: In this paper, a compressor containment assembly in a gas turbine engine includes a diffuser housing having an arcuate portion that defines a channel which traps the high energy fragments and an axial facing U-shaped which imparts flexibility.
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Free spool inducer pump
TL;DR: A fluid pumping apparatus comprises a housing, an impeller rotatable in the housing to discharge fluid centrifugally outwardly, a rotary spool having an inducer section through which intake fluid passes to the impeller, and a rotating diffuser associated with the spool and having driving vanes located at the inlet of the diffuser and outwardly of the periphery for rotatably driving a spool in response to outward flow of said discharged fluid against and between the vanes as mentioned in this paper.
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Centrifugal compressor having hybrid diffuser and excess area diffusing volute
TL;DR: In this paper, a two-section diffuser with a tapered section and a straight section was proposed, with an increasing diffusing area along its radial length, and a diffusing volute having a throat area significantly larger than conventional designs.
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Supersonic gas compressor
TL;DR: In this paper, a gas compressor based on a driven rotor having a compression ramp traveling at a local supersonic inlet velocity is used to compress inlet gas against a stationary sidewall.
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Vortex controlled radial diffuser for centrifugal compressor
TL;DR: In this article, an improvement in radial diffusers employed in a turbine engine having a centrifugal compressor is presented, where the walls of the diffuser define at least one flow passage through the diffusers having a first portion with a first crosssectional area and a second portion having a larger, second cross-sectional area The first wall section is spaced apart from the second wall section so as to define a bleed aperture there between.
References
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Patent
Diffuser for centrifugal compressor
TL;DR: In this paper, a vaneless diffuser at the exit from a centrifugal compressor is defined, and the diffuser walls define an equivalent cone angle over any small element of the length of the diffusion passage of not greater divergence than 12 degrees in the median direction of flow.
Related Papers (5)
Optimization of a Vaned Diffuser Geometry for Radial Compressors: Part I — Investigation of the Influence of Geometry Parameters on Performance of a Diffuser
Tomaz Kmecl,Peter Dalbert +1 more