Patent US2752935A successfully refreshed from Google Patents.
Patent US5062053A successfully refreshed from Google Patents.
Patent US1461175A successfully refreshed from Google Patents.
Patent US2766689A successfully refreshed from Google Patents.
Patent US5073892A successfully refreshed from Google Patents.
Patent EP0066439A1 successfully refreshed from Google Patents.
← Back to Patent Explorer
EP0066439A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Rankine cycle with organic working fluid

Assignee: Daikin Industries Ltd
•
Filing: 1982-05-25
•
Granted: —
•
Expires: 2002-05-25
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Working fluids for use with the Rankine cycle comprising 5 to 50% by weight of tetrafluoromethane, 40 to 95% by weight of trifluoromethane and 0 to 10% by weight of monochlorodifluoromethane.

Inventors

  • 👤 Naonori Enjo
  • 👤 Hideki Aomi
  • 👤 Yuko Harada
  • 👤 Masahiro Noguchi

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-06 15:37
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/02; C09K5/04; C09K5/041; C09K5/044; C09K5/045; F; F01; F01K; F01K25/00; F01K25/08; F01K25/10; C09K2205/00; C09K2205/10; C09K2205/12; C09K2205/122; C09K2205/22

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 31 words
Working fluids for use with the Rankine cycle comprising 5 to 50% by weight of tetrafluoromethane, 40 to 95% by weight of trifluoromethane and 0 to 10% by weight of monochlorodifluoromethane.
Claim 2
Dependent Claim 31 words
Working fluids for use with the Rankine cycle comprising 5 to 50% by weight of tetrafluoromethane, 40 to 95% by weight of trifluoromethane and 0 to 10% by weight of monochlorodifluoromethane.
Claim 3
Dependent Claim 29 words
Working fluids for use with the Rankine cycle according to claim 1 which comprises 5 to 50% by weight of tetrafluoromethane and 50 to 95% by weight of trifluoromethane.
Claim 4
Dependent Claim 36 words
Working fluids for use with the Rankine cycle according to claim 1 which comprise 5 to 50% by weight of tetrafluoromethane, 40 to 90% by weight of trifluoromethane and 5 to 10% by weight of monochlorodifluoromethane.
Claim 5
Dependent Claim 19 words
A process for carrying out the Rankine cycle using the working fluid of claim 1 and liquefied natural gas.

References Cited (Backward Citations)

GB161593A Cited
CH199568A Cited

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag