Global Patent Index - EP 1712853 A3

EP 1712853 A3 2009-02-25 - Expansion valve for an air conditioning system

Title (en)

Expansion valve for an air conditioning system

Title (de)

Expansionsventil für ein Klimagerät

Title (fr)

Vanne d'expansion pour climatiseur

Publication

EP 1712853 A3 (DE)

Application

EP 06005276 A

Priority

DE 102005017623 A

Abstract (en)

[origin: EP1712853A2] The new unit is used in an air conditioning circuit operating with R774 refrigerant (alternatively R23, R116 or R123a). The expansion develops mechanical work, at least part of which is dissipated as losses. The drive unit (2) in which the flowing refrigerant (A, B) develops mechanical work, is constructed as a conventional piston engine, a rotary piston engine, an axial turbine and/or a radial turbine (2). Work losses are dissipated in the form of thermal energy. An adjustable braking unit (6) is included. An independent claim is included for the corresponding expansion method.

IPC 8 full level (invention and additional information)

F25B 41/06 (2006.01)

CPC (invention and additional information)

F25B 9/06 (2013.01); F25B 41/062 (2013.01); F25B 2309/061 (2013.01); F25B 2400/141 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK YU

EPO simple patent family

EP 1712853 A2 20061018; EP 1712853 A3 20090225; DE 102005017623 A1 20061019

INPADOC legal status


2010-04-15 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

2010-03-03 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20090826

2009-10-28 [AKX] PAYMENT OF DESIGNATION FEES

2009-02-25 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

2009-02-25 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL BA HR MK YU

2006-10-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

2006-10-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL BA HR MK YU