Global Patent Index - EP 2025940 A2

EP 2025940 A2 2009-02-18 - Vane compressor

Title (en)

Vane compressor

Title (de)

Drehflügelverdichter

Title (fr)

Compresseur à palettes

Publication

EP 2025940 A2 (EN)

Application

EP 08013463 A

Priority

JP 2007208016 A

Abstract (en)

A vane compressor (1) including: a cylinder chamber (3); a rotor (5) rotatably arranged in the cylinder chamber (3); vane grooves (7) provided in the rotor (5) at equal intervals in the circumferential direction thereof; vanes (9) arranged in the vane grooves (7) in a way that the vanes (9) are capable of protruding to, and retracting from, the cylinder chamber (3); and the vane back-pressure chamber (11) communicating with the bottom portions of the vane grooves (7), and configured to apply the back pressure to the vanes (9); and a back-pressure supplying unit (13) configured to transmit the pressure to the vane back-pressure chamber (11), and to push up the vanes to the sliding surface of the cylinder chamber (3) once the activation mode for rotating the rotor (5) is selected.

IPC 8 full level (invention and additional information)

F04C 18/344 (2006.01); F04C 28/06 (2006.01)

CPC (invention and additional information)

F04C 2/3446 (2013.01); F01C 21/0863 (2013.01)

Citation (applicant)

Designated contracting state (EPC)

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

Designated extension state (EPC)

AL BA MK RS

EPO simple patent family

EP 2025940 A2 20090218; CN 101363438 A 20090211; JP 2009041470 A 20090226; US 2009041606 A1 20090212

INPADOC legal status


2009-12-09 [18W] WITHDRAWN

- Effective date: 20091102

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