Engine with a turbocharger cooling module

Patent metadata

Field	Value
Publication number	US-9670823-B2
Application number	US-201514666697-A
Country	US
Kind code	B2
Filing date	Mar 24, 2015
Priority date	Mar 24, 2015
Publication date	Jun 6, 2017
Grant date	Jun 6, 2017

Abstract

An internal combustion engine includes a cylinder block defining a cylinder, a cylinder head, and an exhaust manifold operatively connected to the cylinder head and configured to exhaust post-combustion gasses from the cylinder. The engine also includes a turbocharger having a turbine housing and configured to be driven by the post-combustion gasses from the exhaust manifold, to pressurize an airflow being received from the ambient, and to discharge the pressurized airflow to the cylinder. The engine additionally includes a cooling module arranged between the turbine housing and the cylinder head and defining a third coolant jacket configured to cool the turbine housing. A vehicle employing such an engine is also disclosed.

First claim

The invention claimed is:

1. An internal combustion engine comprising:
a cylinder block defining a cylinder and a first coolant jacket;
a cylinder head mounted to the cylinder block and configured to supply air and fuel to the cylinder for combustion therein, and defining a second coolant jacket;
an exhaust manifold operatively connected to the cylinder head and configured to exhaust post-combustion gasses from the cylinder;
a turbocharger having a turbine housing and configured to be driven by the post-combustion gasses from the exhaust manifold, to pressurize an airflow being received from the ambient, and to discharge the pressurized airflow to the cylinder; and
a cooling module arranged between the turbine housing and the cylinder head and defining a third coolant jacket configured to remove heat energy from the post-combustion gasses prior to the heat energy soaking into the turbine housing.

2. The engine of claim 1 , wherein the exhaust manifold is integrated into the cylinder head.

3. The engine of claim 1 , wherein the turbocharger includes an inlet for the post-combustion gasses into the turbine housing and the third coolant jacket is incorporated into the inlet of the turbine housing.

4. The engine of claim 1 , wherein the cooling module includes an adapter for mounting the turbocharger to the exhaust manifold, and wherein the adapter defines an exhaust flow passage connecting the exhaust manifold and the turbine housing.

5. The engine of claim 4 , wherein the third coolant jacket is configured to cool the exhaust flow passage.

6. The engine of claim 1 , wherein the third coolant jacket is in a parallel fluid path relative to the second coolant jacket.

7. The engine of claim 1 , wherein the cooling module includes a coolant inlet and a coolant outlet, and wherein each of the coolant inlet and the coolant outlet is in fluid communication with the first coolant jacket.

8. The engine of claim 1 , further comprising a fluid control valve configured to selectively direct and block a flow of coolant through the third coolant jacket.

9. The engine of claim 8 , further comprising a temperature sensor configured to detect a temperature of the coolant in the third coolant jacket.

10. The engine of claim 9 , further comprising an electronic controller in electronic communication with each of the fluid control valve and the temperature sensor, and configured to regulate operation of the fluid control valve in response to the temperature detected by the temperature sensor.

11. A vehicle comprising:
a driven wheel; and
a powertrain including an internal combustion engine and a transmission assembly operatively connected to the engine and configured to transmit engine torque to the driven wheel, the engine including:
a cylinder block defining a cylinder and a first coolant jacket;
a cylinder head mounted to the cylinder block and configured to supply air and fuel to the cylinder for combustion therein, and defining a second coolant jacket;
an exhaust manifold operatively connected to the cylinder head and configured to exhaust post-combustion gasses from the cylinder; and
a turbocharger having a turbine housing and configured to be driven by the post-combustion gasses from the exhaust manifold, to pressurize an airflow being received from the ambient, and to discharge the pressurized airflow to the cylinder; and
a cooling module arranged between the turbine housing and the cylinder head and defining a third coolant jacket configured to remove heat energy from the post-combustion gasses prior to the heat energy soaking into the turbine housing.

12. The vehicle of claim 11 , wherein the exhaust manifold is integrated into the cylinder head.

13. The vehicle of claim 11 , wherein the turbocharger includes an inlet for the post-combustion gasses into the turbine housing and the third coolant jacket is incorporated into the inlet of the turbine housing.

14. The vehicle of claim 11 , wherein the cooling module includes an adapter for mounting the turbocharger to the exhaust manifold, and wherein the adapter defines an exhaust flow passage connecting the exhaust manifold and the turbine housing.

15. The vehicle of claim 14 , wherein the third coolant jacket is configured to cool the exhaust flow passage.

16. The vehicle of claim 11 , wherein the third coolant jacket is in a parallel fluid path relative to the second coolant jacket.

17. The vehicle of claim 11 , wherein the cooling module includes a coolant inlet and a coolant outlet, and wherein each of the coolant inlet and the coolant outlet is in fluid communication with the second coolant jacket.

18. The vehicle of claim 11 , further comprising a fluid control valve configured to selectively direct and block a flow of coolant through the third coolant jacket.

19. The vehicle of claim 18 , further comprising a temperature sensor configured to detect a temperature of the coolant in the third coolant jacket.

20. The vehicle of claim 19 , further comprising an electronic controller in electronic communication with each of the fluid control valve and the temperature sensor, and configured to regulate operation of the fluid control valve in response to the temperature detected by the temperature sensor.

Assignees

• Gm Global Tech Operations Llc

Inventors

• Hayman Alan W
• Mcalpine Robert S

Classifications

• B60K11/02

  with liquid cooling · CPC title

• B60K13/02

  concerning intake · CPC title

• F01N3/046 Primary

  Exhaust manifolds with cooling jacket · CPC title

• F01P3/02 Primary

  Arrangements for cooling cylinders or cylinder heads · CPC title

• F02F1/36

  for liquid cooling · CPC title