Cross-flow fan and an air-conditioner using it
First Claim
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1. A cross-flow fan comprising:
- a multiplicity of disks for supporting on the circumferences thereof a multiplicity of vanes,wherein the multiplicity of vanes are disposed along said circumferences of said disks at intervals which are determined based on the following logistic formula;
space="preserve" listing-type="equation">X(n+1)=A*(1-X(n))*X(n)wheren is an integer;
A is a constant;
X(1) is equal to 0.1.
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Abstract
A number of vanes 12 are disposed in a peripheral direction of a plurality of supporting disks disposed along a rotary shaft 14 at given intervals. Each vane 12 is disposed at an angular interval as determined by a logistic representation. Thereby the intensity and variations of noise levels at around 8N on the low-frequency side, as well as the noise level caused by rotary first-order sounds, can be reduced.
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Citations
12 Claims
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1. A cross-flow fan comprising:
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a multiplicity of disks for supporting on the circumferences thereof a multiplicity of vanes, wherein the multiplicity of vanes are disposed along said circumferences of said disks at intervals which are determined based on the following logistic formula;
space="preserve" listing-type="equation">X(n+1)=A*(1-X(n))*X(n)where n is an integer; A is a constant; X(1) is equal to 0.1. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification