Capacity control of compressors
CA 2310871 A1 · Owner: Vaisman, Igor · Inventors: Vaisman, Igor
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to a method of reducing cooling capacity in a rotary vane compressor in such a way that the power requirement to drive the rotor is reduced to the same extent (or close to) as capacity is reduced. In an aspect of the invention this is accomplished without any impact on compressor efficiency at regular mode. In another aspect, this is accomplished without excessive complexity or low reliability. The present invention provides for a rotary vane compressor comprising a rotor, a stator and vanes placed, in slots spaced apart about the rotor. The stator is provided with an inlet and an outlet and a compression region therebetween. The rotor rotates in a forward …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed June 6, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 6, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 6, 2022.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.