Global Patent Index - EP 2025939 A2

EP 2025939 A2 2009-02-18 - Stepped scroll compressor with staged capacity modulation

Title (en)

Stepped scroll compressor with staged capacity modulation

Title (de)

Abgestufter Spiralverdichter mit Kapazitätsmodulation

Title (fr)

Compresseur à spirale à gradins avec modulation de capacité étagée

Publication

EP 2025939 A2 (EN)

Application

EP 08252231 A

Priority

US 83334207 A

Abstract (en)

A scroll compressor has a stepped wrap such that there is a greater height outer portion (38;40) and a lesser height more central portion (42;44). Bypass ports (36) are associated with the transition zone between the higher and lesser height portions. By providing the bypass port in a stepped scroll compressor, greater reductions in capacity can be achieved than have been provided in the prior art.

IPC 8 full level (invention and additional information)

F04C 18/02 (2006.01); F04C 28/10 (2006.01); F04C 28/26 (2006.01)

CPC (invention and additional information)

F04C 18/0276 (2013.01); F04C 18/0215 (2013.01); F04C 18/0261 (2013.01); F04C 28/10 (2013.01); F04C 28/26 (2013.01); F04C 2270/58 (2013.01)

Citation (applicant)

Designated contracting state (EPC)

BE DE ES FR GB IT

Designated extension state (EPC)

AL BA MK RS

EPO simple patent family

EP 2025939 A2 20090218; EP 2025939 A3 20100811; CN 101358592 A 20090204; JP 2009041564 A 20090226; KR 20090014091 A 20090206; US 2009035167 A1 20090205

INPADOC legal status


2016-06-01 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20160105

2013-04-17 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20130320

2011-04-20 [AKX] PAYMENT OF DESIGNATION FEES

- Designated State(s): BE DE ES FR GB IT

2010-08-11 [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 HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

2010-08-11 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL BA MK RS

2010-08-11 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: F04C 18/02 20060101AFI20081128BHEP

2010-08-11 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: F04C 28/26 20060101ALI20100707BHEP

2010-08-11 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: F04C 28/10 20060101ALI20100707BHEP

2009-02-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20080711

2009-02-18 [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 HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

2009-02-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL BA MK RS