Title:
OIL CONTROL RING WITH FERROUS BODY LESS THAN 2.0 MILLIMETERS HIGH FOR INTERNAL COMBUSTION ENGINES
Document Type and Number:
WIPO Patent Application WO/2010/124353
Kind Code:
A1
Abstract:
There is described an oil control ring (1 ) designed for internal combustion engines and formed by a ferrous body less than 2.0 millimeters high, which comprises two external contact surfaces (102) where each surface (102) contains a first (22) and a second (23) end ridges, two slanted faces (3) where each slanted face (3) contains a third end (32), a peripheral cross section (4) facing the cylinder wall (5) and an internal circular section (6) facing the side of the piston (7), where each contact surface (102) has a height (h) between the first (22) and the second (23) end ridges of up to 0.15 millimeters and the angle of the slanted face (3) is comprised between 8 and 12 degrees and also where the peripheral cross section (4) is solid, without the presence of cracks, holes and/or other kinds of oil drainage areas. The ring (1 ) permits an improved distribution of the contact pressure of the combination and, therefore, a better conformability of the ring with the cylinder wall.
Inventors:
RABUTE REMI DANIEL (FR)
Application Number:
PCT/BR2010/000139
Publication Date:
November 04, 2010
Filing Date:
April 30, 2010
Export Citation:
Assignee:
MAHLE METAL LEVE SA (BR)
RABUTE REMI DANIEL (FR)
RABUTE REMI DANIEL (FR)
International Classes:
F16J9/20; F16J9/06
Domestic Patent References:
| WO2008151589A1 | 2008-12-18 |
Foreign References:
| US20040021270A1 | 2004-02-05 | |||
| JP2005291003A | 2005-10-20 | |||
| JP2007170455A | 2007-07-05 | |||
| BR9202268A | 1993-03-23 | |||
| US7117594B2 | 2006-10-10 | |||
| US6454271B2 | 2002-09-24 | |||
| JP2007170455A | 2007-07-05 |
Attorney, Agent or Firm:
DANNEMANN, SIEMSEN, BIGLER & IPANEMA MOREIRA (Rua Marquês de Olinda 7, Botafogo -040 Rio de Janeiro - RJ, BR)
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