Turbo-compressor impeller for coolant
First Claim
1. An impeller for a radial flow coolant turbo-compressor for compressing water vapor under vacuum conditions, comprising a plurality of vane elements, a disk element forming an impeller seal disk, a plurality of vane support elements and a hub, wherein said vane elements are arranged circumferentially next to one another and are supported and connected to said hub by said vane support elements, wherein said vane support elements comprise at least one support ring encircling said hub and a respective insert member connecting a root of each of said vane elements to said support ring, and wherein at least one member selected from the group consisting of said vane elements, said disk element, said support elements and said hub is made of a fiber-reinforced composite material.
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Accused Products
Abstract
A refrigerant or coolant compressor of the radial type with an impeller hng a plurality of vane elements can be used for compressing water vapor as a refrigerant or coolant under vacuum conditions. The impeller of the compressor is constructed to produce a high volume flow rate at the required compression ratio, in view of the low density of water vapor as the preferred flow medium. The impeller has sufficient strength to operate at the required high circumferential velocities. The impeller includes vane elements, disk elements, vane support elements and a hub. The vane elements are individually connected to the hub by the support elements. The support elements may be either ring-shaped elements connecting a rear surface of the disk elements to the hub, or may be pin-shaped insert members connecting the root of each vane element to the hub. The components of the impeller are made of a polymer composite material reinforced preferably with carbon fibers.
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Citations
6 Claims
- 1. An impeller for a radial flow coolant turbo-compressor for compressing water vapor under vacuum conditions, comprising a plurality of vane elements, a disk element forming an impeller seal disk, a plurality of vane support elements and a hub, wherein said vane elements are arranged circumferentially next to one another and are supported and connected to said hub by said vane support elements, wherein said vane support elements comprise at least one support ring encircling said hub and a respective insert member connecting a root of each of said vane elements to said support ring, and wherein at least one member selected from the group consisting of said vane elements, said disk element, said support elements and said hub is made of a fiber-reinforced composite material.
Specification