Global Patent Index - EP 0887550 A4

EP 0887550 A4 2001-05-02 - STRUCTURE FOR RECOVERING LEAKAGE OIL IN COMPRESSOR

Title (en)

STRUCTURE FOR RECOVERING LEAKAGE OIL IN COMPRESSOR

Title (de)

STRUKTUR ZUR WIEDERGEWINNUNG VON LECKÖL IN KOMPRESSOREN

Title (fr)

STRUCTURE POUR RECUPERER L'HUILE QUI FUIT DANS UN COMPRESSEUR

Publication

EP 0887550 A4 (EN)

Application

EP 96943308 A

Priority

JP 9603823 W

Abstract (en)

[origin: EP0887550A1] A housing (11, 12, 13) houses a compression mechanism. A driving shaft (15) is supported by the housing (11, 12, 13) and is connected to the compression mechanism. A boss (16) is provided on the external wall of the housing (11, 12, 13) so as to surround the portion of the driving shaft (15) which projects from the housing (11, 12, 13). A rotor (18) is connected to the driving shaft (15) and transmits the power of an external driving source to the driving shaft (15). A shaft sealing device (17) is disposed in the housing (11, 12, 13) and seals the gap between the driving shaft (15) and the inner circumferential surface of the housing (11, 12, 13). A recovery unit (35, 36, 38) is provided for recovering a leakage oil which leaks from the shaft sealing device (17). A stepped portion (40) is formed to extend around the periphery of a rotating portion (15, 21 alpha ) which is positioned on the side of an opening (16 alpha ) of the boss (16) with respect to the shaft sealing device (17) in the housing (11, 12, 13). The stepped portion (40) is disposed opposite to the recovery unit (35, 36, 38). <IMAGE>

IPC 1-7 (main, further and additional classification)

F04B 27/08; F04B 27/10

IPC 8 full level (invention and additional information)

F04B 39/00 (2006.01); F04B 27/08 (2006.01); F04B 27/10 (2006.01); F04B 39/02 (2006.01)

CPC (invention and additional information)

F04B 27/1036 (2013.01); F04B 27/0895 (2013.01); F04B 27/109 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR

EPO simple patent family

EP 0887550 A1 19981230; EP 0887550 A4 20010502; WO 9829660 A1 19980709

INPADOC legal status


2002-01-30 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20010619

2001-05-02 [A4] DESPATCH OF SUPPLEMENTARY SEARCH REPORT

- Effective date: 20010316

2001-05-02 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): DE FR

2001-04-25 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7F 04B 27/08 A, 7F 04B 27/10 B

1998-12-30 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19980810

1998-12-30 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR