Water jacket diverter and method for operation of an engine cooling system

Patent metadata

Field	Value
Publication number	US-10907530-B2
Application number	US-201916409606-A
Country	US
Kind code	B2
Filing date	May 10, 2019
Priority date	May 10, 2019
Publication date	Feb 2, 2021
Grant date	Feb 2, 2021

Abstract

Methods and systems are provided for a water jacket diverter. In one example, a water jacket diverter for a cylinder block is provided that includes a masking wall arranged above a rail and including a tuning section having a reduced thickness when compared to a remainder of the masking wall. The water jacket diverter also includes a tuning ledge adjacent to the masking wall and extending outward from the masking wall with regard to a cylinder bore axis.

First claim

The invention claimed is:

1. A water jacket diverter for a cylinder block, comprising:
a masking wall arranged above a rail and including a tuning section having a reduced thickness when compared to a remainder of the masking wall;
a tuning ledge adjacent to the masking wall and extending outward from the masking wall with regard to a cylinder bore axis; and
a fin extending upward from the rail and spaced away from the wall and/or a plurality of cut-outs extending downward from the rail and forming a comb structure, where the comb structure extends around a periphery of the water jacket diverter.

2. The water jacket diverter of claim 1 , where the masking wall is positioned adjacent to a major piston thrust side of a cylinder wall in the cylinder block.

3. The water jacket diverter of claim 1 , where an inlet of a cylinder block water jacket opens into a section of the cylinder block water jacket adjacent to the masking wall.

4. The water jacket diverter of claim 3 , where the inlet is positioned on one longitudinal side of a plurality of cylinders in an inline arrangement.

5. A water jacket diverter for a cylinder block, comprising:
a masking wall arranged above a rail and including a tuning section having a reduced thickness when compared to a remainder of the masking wall;
a tuning ledge adjacent to the masking wall and extending outward from the masking wall with regard to a cylinder bore axis, where the masking wall has an upper surface with a varying height, including the masking wall increasing in height above the tuning section and decreasing in height above the tuning ledge.

6. The water jacket diverter of claim 5 , where the tuning ledge comprises a section extending downward from the rail and the masking wall comprises a section extending upward from the tuning ledge.

7. The water jacket diverter of claim 5 , where the tuning section is positioned below an upper surface of the masking wall.

8. An engine block comprising:
a cylinder block with a plurality of cylinder bores;
a water jacket disposed in the cylinder block, at least partially surrounding the plurality of cylinder bores, and configured to flow coolant around the cylinder bores; and
a water jacket diverter positioned in the water jacket, formed as a unitary piece, and arranged around the plurality of cylinder bores;
where the water jacket diverter includes:
a masking wall arranged above a rail adjacent to the cylinder block water jacket inlet, the masking wall including a tuning section having a reduced thickness when compared to a remainder of the masking wall; and
a tuning ledge adjacent to the masking wall and extending outward from the masking wall with regard to a cylinder bore axis, where the masking wall has an upper surface with a varying height, including the masking wall increasing in height above the tuning section and decreasing in height above the tuning ledge.

9. The engine block of claim 8 , where the masking wall only extends around a periphery of one of the plurality of cylinder bores.

10. The engine block of claim 9 , where the one of the plurality of cylinder bores is a peripheral bore and where the plurality of cylinder bores are arranged in an inline configuration.

11. The engine block of claim 8 , where the masking wall has an upper surface with a varying height.

12. The engine block of claim 8 , where the tuning ledge curves downward from the rail with regard to a central axis of one of the plurality of cylinder bores.

13. The engine block of claim 8 , where the water jacket diverter further includes a fin extending upward from the rail and spaced away from the wall and/or a plurality of cut-outs extending downward from the rail and forming a comb structure, where the comb structure extends around a periphery of the water jacket diverter.

14. The engine block of claim 8 , where the rail includes a reduced thickness section spaced away from the masking wall.

Assignees

• Ford Global Tech Llc

Inventors

• Cierpial Philip Damian
• Shoemaker Paul
• O'Hara Donna
• Schneider James

Classifications

• F02F2001/104

  using an open deck, i.e. the water jacket is open at the block top face · CPC title

• F02F1/14 Primary

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

• F02F1/16

  Cylinder liners of wet type · CPC title

• F01P7/14 Primary

  the coolant being liquid · CPC title

• F01P2003/021

  Cooling cylinders · CPC title