Distribution module for distributing an inlet mixture

Patent metadata

Field	Value
Publication number	US-9920721-B2
Application number	US-201414899321-A
Country	US
Kind code	B2
Filing date	Jun 13, 2014
Priority date	Jun 25, 2013
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

The invention relates to a distribution module ( 11 ) for distributing an inlet mixture to at least two cylinders of a heat engine, this inlet mixture selectively comprising:—cooled inlet air, or—non-cooled inlet air, or—recirculation gas, or—a combination of at least two of the above elements, the module ( 11 ) comprising:—a first inlet ( 21 ) for conveying cooled inlet air into the module ( 11 ),—a second inlet ( 22 ) for conveying non-cooled inlet air into the module ( 11 ),—a third inlet ( 23 ) for conveying recirculation gas into the module ( 11 ), the module being arranged to distribute the inlet mixture substantially equally between said at least two cylinders.

First claim

The invention claimed is:

1. A distribution module to distribute an intake mixture to at least two cylinders of a combustion engine, the intake mixture comprising: cooled intake air, uncooled intake air, and recirculation gas, the module comprising:
a first inlet enabling cooled intake air to be conveyed into a mixing chamber;
a second inlet enabling uncooled intake air to be conveyed into the mixing chamber; and
a third inlet enabling recirculation gas to be conveyed into the mixing chamber,
wherein the mixing chamber into which lead the first, second and third inlets, and in which the intake mixture is made, is arranged so as to distribute the intake mixture in a substantially equal manner between the at least two cylinders,
the second inlet being connected to a first distribution organ arranged to distribute the uncooled intake air in the mixing chamber,
the third inlet being connected to a second distribution organ arranged to distribute the recirculation gas in the mixing chamber.

2. The distribution module according to claim 1 , at least one of the first and second distribution organs comprising a plurality of distribution orifices.

3. The distribution module according to claim 1 , the first and second distribution organs being located one outside the other.

4. The distribution module according to claim 1 , one of the first and second distribution organs being located one inside the other, or at least partially.

5. The distribution module according to claim 1 , the first and second distribution organs being located at a non-zero distance from each other.

6. The distribution module according to claim 1 , the first and second distribution organs being joined.

7. The distribution module according to claim 1 , the first and second distribution organs being located on either side of the first inlet.

8. The distribution module according to claim 1 , the first and second distribution organs being located on the same side as the first inlet.

9. The distribution module according to claim 1 , arranged to enable the intake mixture to be achieved with uncooled intake air and recirculation gas, without cooled intake air.

10. The distribution module according to claim 1 , further comprising
a by-pass valve arranged to send intake air into the first inlet or the second inlet.

11. The distribution module according to claim 1 , further comprising:
a cooled path comprising a heat exchanger to convey the cooled intake air into the mixing chamber;
an uncooled path to by-pass the heat exchanger; and
an EGR loop to convey the recirculation gas into the mixing chamber,
the by-pass valve enabling the selection either of the cooled path or of the uncooled path.

12. A distribution module to distribute an intake mixture to at least two cylinders of a combustion engine, the intake mixture comprising: cooled intake air, uncooled intake air, and recirculation gas, the module comprising:
a first inlet enabling cooled intake air to be conveyed into a mixing chamber;
a second inlet enabling uncooled intake air to be conveyed into the mixing chamber;
a third inlet enabling recirculation gas to be conveyed into the mixing chamber,
wherein the mixing chamber into which lead the first, second and third inlets, and in which the intake mixture is made, is arranged so as to distribute the intake mixture in a substantially equal manner between the at least two cylinders,
the second inlet being connected to a first distribution organ arranged to distribute the uncooled intake air in the mixing chamber,
the third inlet being connected to a second distribution organ arranged to distribute the recirculation gas in the mixing chamber,
one of the first and second distribution organs being located inside the other, at least partially.

13. A distribution module to distribute an intake mixture to at least two cylinders of a combustion engine, the intake mixture comprising: cooled intake air, uncooled intake air, and recirculation gas, the module comprising:
a first inlet enabling cooled intake air to be conveyed into a mixing chamber;
a second inlet enabling uncooled intake air to be conveyed into the mixing chamber;
a third inlet enabling recirculation gas to be conveyed into the mixing chamber,
wherein the mixing chamber into which lead the first, second and third inlets, and in which the intake mixture is made, is arranged so as to distribute the intake mixture in a substantially equal manner between the at least two cylinders,
the second inlet being connected to a first distribution organ arranged to distribute the uncooled intake air in the mixing chamber,
the third inlet being connected to a second distribution organ arranged to distribute the recirculation gas in the mixing chamber, and
the first and second distribution organs being joined.

14. A distribution module to distribute an intake mixture to at least two cylinders of a combustion engine, this intake mixture comprising: cooled intake air, uncooled intake air, and recirculation gas, the module comprising:
a first inlet enabling cooled intake air to be conveyed into a mixing chamber;
a second inlet enabling uncooled intake air to be conveyed into the mixing chamber;
a third inlet enabling recirculation gas to be conveyed into the mixing chamber,
wherein the mixing chamber into which lead the first, second and third inlets, and in which the intake mixture is made, is arranged so as to distribute the intake mixture in a substantially equal manner between the at least two cylinders,
the second inlet being connected to a first distribution organ arranged to distribute the uncooled intake air in the mixing chamber,
the third inlet being connected to a second distribution organ arranged to distribute the recirculation gas in the mixing chamber,
the first and second distribution organs being located on the same side as the first inlet.

Assignees

• Valeo Systemes De Controle Moteur

Inventors

• Lallemant Mathieu
• Girardon Franck
• Lebrasseur Patrick

Classifications

• F02M35/10091

  characterised by details of intake ducts: shapes; connections; arrangements (ducts within or on the plenum chamber F02M35/10039) · CPC title

• F02M35/1045

  characterised by the charge distribution between the cylinders/combustion chambers or its homogenisation · CPC title

• F02M26/19

  Means for improving the mixing of air and recirculated exhaust gases, e.g. venturis or multiple openings to the intake system · CPC title

• F02M35/10157

  Supercharged engines · CPC title

• F02M26/20

  Feeding recirculated exhaust gases directly into the combustion chambers or into the intake runners · CPC title