Claims
- 1. A multi-cylinder internal combustion engine, comprising at least one cylinder row with an intake side and an exhaust side, the intake side comprising an intake manifold, and the exhaust side comprising at least one exhaust manifold common to a group of cylinders, at least one charging unit which is connected by its pressure side to an intake air line opening into the intake manifold and an arrangement for exhaust gas recirculation from the exhaust side of the engine to its intake side, the arrangement for exhaust gas recirculation from the exhaust side of the engine to its intake side comprises a recirculation passage which is arranged in a cylinder head of the engine, for the respective group of cylinders, forms a connection between the exhaust manifold and the intake side, and can be opened and closed by a valve means.
- 2. The internal combustion engine as recited in claim 1, wherein the internal combustion engine is a charge-air-cooled turbo-engine.
- 3. The internal combustion engine as recited in claim 1, wherein the valve means is open when the pressure in the associated exhaust manifold is higher than the pressure on the intake side, for the time that gives the desired EGR flow.
- 4. The internal combustion engine as recited in claim 1, wherein the valve means are located in the cylinder head(s) of the engine.
- 5. The internal combustion engine as recited in claim 1, wherein the means for exhaust gas recirculation comprise a cooler, what is known as an EGR coo1er, for cooling the recirculated gas.
- 6. The internal combustion engine as recited in claim 1, wherein the valve means can be regulated by control means in such a manner that the passage is opened when the pressure in the associated exhaust manifold is higher than the in the intake manifold, under such circumstances when exhaust gases are to be recirculated.
- 7. The internal combustion engine as recited in claim 6, wherein the control means can be acted on for moderation of the pressure difference between the exhaust side and the intake side during engine braking by means of an exhaust gas pressure regulator connected to the engine.
Priority Claims (1)
Number |
Date |
Country |
Kind |
0002464-6 |
Jun 2000 |
SE |
|
Cross Reference to Related Applications
[0001] The present application is a continuation of International Application No. PCT/SE01/01470, filed 27 June 2001, published in English pursuant to PCT Article 21(2) and which claims priority to Swedish Application No. 0002464-6 filed 28 June 2000. Both applications are expressly incorporated herein by reference in their entireties.
Continuations (1)
|
Number |
Date |
Country |
Parent |
PCT/SE01/01470 |
Jun 2001 |
US |
Child |
10248146 |
Dec 2002 |
US |