Internal combustion engine cooling

Patent metadata

Field	Value
Publication number	US-10119451-B2
Application number	US-201615216252-A
Country	US
Kind code	B2
Filing date	Jul 21, 2016
Priority date	Jul 22, 2015
Publication date	Nov 6, 2018
Grant date	Nov 6, 2018

Abstract

An internal combustion engine for a motor vehicle drive includes a housing having a cylinder head water jacket, an exhaust water jacket and a combustion chamber water jacket. A valve is operable for adjusting a flow through a multi-channel coolant inlet. In particular, the valve provides continuous adjustment of a cross section, through which a fluid can flow of a multi-channel exhaust coolant outlet for admitting a flow to the exhaust water jacket and cross-section, through which a fluid can flow of a multi-channel combustion chamber coolant outlet for admitting a flow to the combustion chamber water jacket.

First claim

What is claimed is:

1. An internal combustion engine for a motor vehicle drive comprising:
a housing having a cylinder head water jacket, an exhaust water jacket and a combustion chamber water jacket; and
a valve configured to selectively admit a coolant flow through a multi-channel coolant inlet by adjusting a cross section through which coolant can flow to a multi-channel exhaust coolant outlet for admitting the coolant flow to the exhaust water jacket and through which coolant can flow to a multi-channel combustion chamber coolant outlet for admitting a flow to the combustion chamber water jacket.

2. The internal combustion engine according to claim 1 , wherein the cylinder head water jacket is fluidically connected in a multi-channel manner to at least one of the exhaust water jacket or the combustion chamber water jacket at a distance from the valve and has a coolant outlet at a distance from the valve for removing coolant.

3. The internal combustion engine according to claim 1 , wherein the valve comprises a rotary slide rotatably supported on a bearing for adjusting the cross section of the exhaust coolant outlet and the combustion chamber coolant outlet, wherein the cross-sections by turning the rotary slide.

4. The internal combustion engine according to claim 3 , wherein the bearing is integrally formed with the housing and the valve is arranged therein.

5. The internal combustion engine according to claim 3 , wherein the rotary slide comprises at least two axial sections at a distance from one another, each section having an open circumferential section and an adjoining closed circumferential section for at least partially closing at least one of an exhaust through opening of the exhaust coolant outlet or a combustion chamber through opening of the combustion chamber coolant outlet.

6. The internal combustion engine according to claim 3 wherein the rotary slide comprises at least two axial sections at a distance from one another, each axial section having an open circumferential section and an adjoining closed circumferential section for the at least partial closing of at least one through opening of the coolant inlet of the valve.

7. The internal combustion engine according to claim 1 further comprising an actuator for adjusting the valve.

8. The internal combustion engine according to claim 1 , wherein the valve is positionable between a first valve position such that the exhaust coolant outlet has a maximum cross-section and the combustion chamber coolant outlet of the valve has a minimum cross-section which coolant can flow, and a second position such that the exhaust coolant outlet has a minimum cross-section and the combustion chamber coolant outlet has a maximum cross-section through which coolant can flow.

9. The internal combustion engine according to claim 8 , wherein the valve is positionable in a third position such that the exhaust coolant outlet an intermediate cross-section which is smaller than the maximum and larger than the minimum cross section of the exhaust coolant outlet, and the combustion chamber coolant outlet has an intermediate cross-section that is larger than the minimum and smaller than the maximum cross of the combustion chamber coolant outlet.

10. The internal combustion engine according to claim 9 , wherein a coolant inlet of the valve is open in the first, second, and third positions and closed in a fourth position of the valve.

11. The internal combustion engine according to claim 1 , wherein at least one of the cylinder head water jacket, the exhaust water jacket and the combustion chamber water jacket is formed integrally with the housing.

12. The internal combustion engine according to claim 11 wherein at least two water jackets are formed integrally with the housing.

13. The internal combustion engine according to claim 1 , wherein at least one of the cylinder head water jacket, the exhaust water jacket and the combustion chamber water jacket is formed separately from the housing.

14. The internal combustion engine according to claim 1 , wherein the cylinder head water jacket surrounds at least one cylinder head of the internal combustion engine over at least part of its extent and the combustion chamber water jacket surrounds at least one combustion chamber of the internal combustion engine over at least part of its extent, and the exhaust water jacket surrounds an exhaust manifold of the internal combustion engine over a part of its extent.

15. The internal combustion engine according to claim 14 , wherein the exhaust manifold is integrated with the housing.

16. The internal combustion engine according to claim 1 , wherein the internal combustion engine is a charged Diesel engine or is a charged petrol engine.

17. A motor vehicle comprising an internal combustion engine according to claim 1 .

18. A method of cooling an internal combustion engine having a housing having a cylinder head water jacket, an exhaust water jacket and a combustion chamber water jacket, and a valve configured to selectively admit a coolant flow through a multi-channel coolant inlet by adjusting a cross section through which coolant can flow to a multi-channel exhaust coolant outlet for admitting the coolant flow to the exhaust water jacket and through which coolant can flow to a multi-channel combustion chamber coolant outlet for admitting a flow to the combustion chamber water jacket, the method comprising at least partially automatically adjusting the valve as a function of an operating temperature of the internal combustion engine.

19. The method according to claim 18 , where in the operating temperature is selected from the group consisting of a temperature of the housing, a temperature of an exhaust of the internal combustion engine, a temperature of the coolant or a combination thereof.

20. An internal combustion engine for a motor vehicle drive comprising:
a housing having a cylinder head water jacket, an exhaust water jacket and a combustion chamber water jacket; and
a valve configured to selectively admit a coolant flow through a multi-channel coolant inlet by adjusting a cross section through which coolant can flow to a multi-channel exhaust coolant outlet for admitting the coolant flow to the exhaust water jacket and through which coolant can flow to a multi-channel combustion chamber coolant outlet for admitting a flow to the combustion chamber water jacket,
wherein the valve comprises a rotary slide rotatably supported on a bearing for adjusting the cross section of the exhaust coolant outlet and the combustion chamber coolant outlet, wherein the cross-sections by turning the rotary slide and wherein the valve is positionable such that open sections of the rotary slide partially covers through openings of the combustion chamber coolant outlet and through openings of the exhaust coolant outlet so that fluid can flow through the exhaust coolant outlet and the combustion chamber coolant outlet.

Assignees

• Gm Global Tech Operations Llc

Inventors

• Seeger Peter

Classifications

• F02F1/40

  cylinder heads with means for directing, guiding, or distributing liquid stream · CPC title

• F02F1/36

  for liquid cooling · CPC title

• F02F1/10

  for liquid cooling · CPC title

• F01P2050/22

  Motor-cars · CPC title

• F01P7/162 Primary

  by cutting in and out of pumps · CPC title