Separation of lubricating oil from refrigerant gas in a reciprocating compressor
CA 1108424 A · Owner: Carrier Corporation · Inventors: Fraser, Howard H. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Separation of Lubricating Oil From Refrigerant Gas in a Reciprocating Compressor, Abstract A hermetically sealed reciprocating motor compressor unit including a sealed shell. Discharge gas from the compressor is passed through the motor via suitable flow passages. The top of the motor and the interior surface of the shell define a chamber therebetween. The rotor functions as a centrifuge for separating the high pressure refrigerant gas from oil entrained therein. A substantially oil free vortex is formed encompassing a sector of the chamber defined by sides bearing 45° relative to the vertical center line of the rotor. A refrigerant gas discharge tube connected to the top of the shell is …
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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
- Granted September 8, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 8, 1998.
- 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.