Exhaust-gas turbocharger for a motor vehicle

Patent metadata

Field	Value
Publication number	US-10145296-B2
Application number	US-201615374346-A
Country	US
Kind code	B2
Filing date	Dec 9, 2016
Priority date	Dec 11, 2015
Publication date	Dec 4, 2018
Grant date	Dec 4, 2018

Abstract

The present disclosure relates to an exhaust-gas turbocharger for a supercharged internal combustion engine having a charge-air cooler. In order to prevent the formation in the charge-air-guiding parts of condensate which above a certain quantity, if it remains within the charge-air-guiding parts, leads to damage to the engine, such as, for example, ice formation, water shock or corrosion, it is proposed to provide a condensate outlet opening on the compressor of the exhaust-gas turbocharger, which opening is provided in a lowermost region of a charge-air flow path through the compressor.

First claim

The invention claimed is:

1. An exhaust-gas turbocharger for a motor vehicle comprising:
a compressor defining a charge-air flow path; and
a condensate outlet opening arranged in a lowermost region of a charge-air flow path,
wherein the condensate outlet opening is arranged at the geodetically lowest point of a pressure spiral of the compressor.

2. The exhaust-gas turbocharger according to claim 1 , wherein the condensate outlet opening is provided on a lowermost point of a compressor housing.

3. The exhaust-gas turbocharger according to claim 1 , wherein the condensate outlet opening a connection for a condensate discharge line.

4. A drive device for a motor vehicle, comprising:
an exhaust-gas turbocharger including a compressor defining a charge-air flow path and a condensate outlet opening arranged in a lowermost region of a charge-air flow path;
an internal combustion engine supercharged by the exhaust-gas turbocharger;
a charge-air cooler for cooling charge air compressed by the compressor of the exhaust-gas turbocharger; and
a first charge-air line which connects a charge-air outlet of the compressor to a charge-air inlet of the charge-air cooler.

5. The drive device according to claim 4 , wherein the motor vehicle is a commercial vehicle.

6. The drive device according to claim 4 , wherein the first charge-air line is configured to rise continuously starting from the charge-air outlet of the compressor to the charge-air inlet of the charge-air cooler.

7. The drive device according to claim 4 , further comprising a condensate discharge line which is connected at one end to the condensate outlet opening and opens at the other end into a second charge-air line which feeds charge air cooled by the charge-air cooler to the internal combustion engine.

8. The drive device according to claim 7 , wherein the condensate discharge line opens into the second charge-air line at a charge-air inlet of the internal combustion engine or directly upstream of the charge-air inlet.

9. The drive device according to claim 7 , wherein the condensate discharge line has a reservoir for receiving condensate.

10. The drive device according to one of claim 7 , further comprising a return check valve arranged in the condensate discharge line preventing return flow into the compressor of condensate or air which has emerged from the condensate outlet opening.

11. The drive device according to claim 10 , wherein the reservoir is arranged between the condensate outlet opening and the return check valve.

12. The drive device according claim 7 , wherein the condensate discharge line is configured to be heatable.

13. A motor vehicle, in particular a commercial vehicle, comprising:
an exhaust-gas turbocharger including a compressor defining a charge-air flow path and a condensate outlet opening arranged in a lowermost region of a charge-air flow path, wherein the condensate outlet opening is arranged at the geodetically lowest point of a pressure spiral of the compressor;
an internal combustion engine supercharged by the exhaust-gas turbocharger;
a charge-air cooler for cooling charge air compressed by the compressor of the exhaust-gas turbocharger; and
a first charge-air line which connects a charge-air outlet of the compressor to a charge-air inlet of the charge-air cooler.

Assignees

• Man Truck & Bus Ag

Inventors

• Hollweck Johannes

Classifications

• F02C6/12

  Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure · CPC title

• F02M35/088

  Water, snow or ice proofing; Separation or drainage of water, snow or ice · CPC title

• F05D2220/40

  in turbochargers · CPC title

• F02M35/10131

  Ducts situated in more than one plane; Ducts of one plane crossing ducts of another plane · CPC title

• F02M35/10104

  Substantially vertically arranged ducts · CPC title