Global Patent Index - EP 1059983 A1

EP 1059983 A1 2000-12-20 - ARRANGEMENT IN AN OIL FILTER

Title (en)

ARRANGEMENT IN AN OIL FILTER

Title (de)

ÖLFILTERANORDNUNG

Title (fr)

AGENCEMENT DE FILTRE A HUILE

Publication

EP 1059983 A1 (EN)

Application

EP 99908064 A

Priority

  • SE 9900331 W
  • SE 9800669 A

Abstract (en)

[origin: WO9944716A1] The invention relates to an arrangement in an oil filter (1) for a machine with a centralised lubrication system, for example an internal combustion engine. The oil filter comprises a cylindrical container (1a) containing a filter material (2). One end (1b) of the container has a peripheral seal (1b1), a central, threaded sleeve (1b2) serving as outlet for oil that has passed through the oil filter, and inlet openings (1b3) situated between the sleeve (1b2) and the seal (1b1) for oil that is to be filtered. When the filter (1) is fitted to the machine it forms part of the machine lubrication system. Connected to the inlet and outlet of the oil filter is a non-return valve, designed to retain the oil in the container (1a) when the oil pressure is cancelled, together with an overflow valve designed to open and allow at least some of the incoming oil to bypass the filter material (2) when the fall in pressure over the said material exceeds a predetermined pressure value. When changing the filter material, the other end serves as an openable/closeable cover. The non-return valve is designed to be acted upon by the force of a spring, prevailing when the cover (1c) is closed, to maintain its non-return valve function and to open when the spring force is cancelled as a result of the cover (1c) being opened.

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

B01D 27/08

IPC 8 full level (invention and additional information)

B01D 27/08 (2006.01)

IPC 8 main group level (invention and additional information)

B01D (2006.01)

CPC (invention and additional information)

B01D 1/00 (2013.01); B01D 27/08 (2013.01)

Citation (search report)

See references of WO 9944716A1

Designated contracting state (EPC)

AT CH DE ES FR GB IT LI SE

EPO simple patent family

WO 9944716 A1 19990910; AR 018575 A1 20011128; AU 2757799 A 19990920; CA 2322681 A1 19990910; EP 1059983 A1 20001220; SE 509996 C2 19990329; SE 9800669 D0 19980304; SE 9800669 L 19990329

INPADOC legal status


2001-11-28 [18W] WITHDRAWN

- Date of withdrawal: 20010928

2000-12-20 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000907

2000-12-20 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT CH DE ES FR GB IT LI SE