Blow-by gas inlet structure of oil separator for internal combustion engine
AssigneeMahle Filter Systems Japan Corporation
InventorsKeigo Hayashi, Atsushi Nonaka
Life of this patent
Estimating the term…
Abstract
A blow-by gas inlet structure of an oil separator adapted to be placed above a cam chamber of an internal combustion engine, comprises a plate that forms a bottom wall of the oil separator; a blow-by gas inlet opening that is formed in the plate; an oil blocking structure that is provided below the blow-by gas inlet opening in a manner to divide the blow-by gas inlet opening into front and rear inlet openings through which the blow-by gas is led into the oil separator, the front and rear inlet openings being arranged in a first direction; and a transverse rib that is provided on the oil blocking structure and extends in a second direction that is perpendicular to the first direction.
Claims7
An internal combustion engine comprising a blow-by gas inlet structure of an oil separator and a cam chamber, the blow-by gas inlet structure placed above the cam chamber, the blow-by gas inlet structure comprising:
- a plate that forms a bottom wall of the oil separator;
- a blow-by gas inlet opening that is formed in the plate;
- an oil blocking structure that is provided below the blow-by gas inlet opening in a manner to divide the blow-by gas inlet opening into front and rear inlet openings through which the blow-by gas is led into the oil separator, the front and rear inlet openings being arranged in a first direction;
- and
- a transverse rib that is provided on the oil blocking structure and extends in a second direction that is perpendicular to the first direction,
- the oil blocking structure comprising:
- a first inclined flat wall that faces the front inlet opening while being inclined relative to the front inlet opening;
- a second inclined flat wall that faces the rear inlet opening while being inclined relative to the rear inlet opening;
- and
- a first side wall that extends between one ends of the first and second inclined flat walls;
- and
- a second side wall that extends between the other ends of the first and second inclined flat walls.
An internal combustion engine comprising a blow-by gas inlet structure of an oil separator and a cam chamber, the blow-by gas inlet structure placed above the cam chamber, the blow-by gas inlet structure comprising:
- a plate that forms a bottom wall of the oil separator;
- a blow-by gas inlet opening that is formed in the plate;
- an oil blocking structure that is provided below the blow-by gas inlet opening in a manner to divide the blow-by gas inlet opening into front and rear inlet openings through which the blow-by gas is led into the oil separator, the front and rear inlet openings being arranged in a first direction;
- a transverse rib that is provided on the oil blocking structure and extends in a second direction that is perpendicular to the first direction;
- and
- first and second longitudinal ribs that are provided on the oil blocking structure and extend across the blow-by gas inlet opening in the first direction,
- the oil blocking structure comprising:
- a first inclined flat wall that faces the front inlet opening while being inclined relative to the front inlet opening;
- a second inclined flat wall that faces the rear inlet opening while being inclined relative to the rear inlet opening;
- and
- a first side wall that extends between one ends of the first and second inclined flat walls;
- and
- a second side wall that extends between the other ends of the first and second inclined flat walls.
Dependencies are inferred from the claim text.