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US 12,480,514 B2Granted
Turbo-type fluid machine and refrigeration apparatus
AssigneeDaikin Industries, Ltd.
InventorsArihiro Iwata, Kosuke Nishimura, Koichi Tanaka, Daigo Fukuda, Yuki Kawachiya
Life of this patent
Estimating the term…
Abstract
A turbo-type fluid machine includes a shaft configured to be rotationally driven, a compression mechanism having an impeller, and a coupling portion coupling an end portion of the shaft and the impeller with each other. The coupling portion is provided with a balance adjustment mechanism.
Claims20
A turbo-type fluid machine comprising:
- a shaft configured to be rotationally driven;
- a compression mechanism having an impeller;
- and
- a coupling portion coupling an end portion of the shaft and the impeller with each other,
- the coupling portion being provided with a balance adjustment mechanism,
- the end portion of the shaft being connected to one end of the coupling portion in an axial direction of the shaft, and
- the compression mechanism being connected to an other end of the coupling portion in the axial direction.
4 more elements
A turbo-type fluid machine comprising:
- a shaft configured to be rotationally driven;
- a compression mechanism having an impeller;
- and
- a coupling portion coupling an end portion of the shaft and the impeller with each other,
- the coupling portion being provided with a balance adjustment mechanism,
- the shaft, the coupling portion, and the impeller being separate components, and a density of the coupling portion being less than a density of the shaft.
3 more elements
A turbo-type fluid machine comprising:
- a shaft configured to be rotationally driven
- a compression mechanism ng an impeller;
- and
- a coupling portion coupling an end portion of the shaft and the impeller with each other,
- the coupling portion being provided with a balance adjustment mechanism, the balance adjustment mechanism including
- a plurality of holes formed in the coupling portion, and
- a weight component attached to a predetermined one of the plurality of holes, in the coupling portion, the plurality of holes being arranged in a circumferential direction of the coupling portion,
- the coupling portion, having a first line group and a second line group, each of the first line group and the second line group including the plurality of holes arranged in the circumferential direction of the coupling portion, and
- the first line group and the second line group being arranged in an axial direction of the coupling portion.
6 more elements
A turbo-type fluid machine comprising:
- a shaft configured to be rotation lly driven;
- a compression mechanism having an impeller;
- a coupling portion coupling an end portion of the shaft and the impeller with each other;
- and
- a first member arranged around an outer peripheral surface of the coupling portion to form a gap therebetween,
- the coupling portion being provided with a balance adjustment mechanism, and
- an outer diameter of a portion of the coupling portion surrounded by the first member being smaller than an outer diameter of the shaft.
4 more elements
Dependencies are inferred from the claim text.