Crankcase top deck for an internal combustion engine
A top deck area of a crankcase is provided. The top deck area includes an exhaust elbow extending from a side surface towards a top surface of the top deck area. The top deck area also includes a plate. The plate is configured to define a first chamber and a second chamber within the top deck area. The first chamber is configured to at least partially enclose the exhaust elbow. The second chamber is configured to provide a passage for a fluid flow such that the plate is disposed to isolate the second chamber from the exhaust elbow.
1. A top deck area of a crankcase, the top deck area comprising:
an exhaust elbow extending from a side surface towards a top surface of the top deck area; and
a plate configured to define a first chamber and a second chamber within the top deck area,
wherein the first chamber is configured to at least partially enclose the exhaust elbow, and
wherein the second chamber is configured to provide a passage for a fluid flow therein, such that the plate is disposed to isolate the second chamber from the exhaust elbow.
2. The top deck area of the crankcase of claim 1 further comprising:
a siphon tube in fluid communication with the second chamber.
3. The top deck area of the crankcase of claim 2 , wherein the plate includes a recess corresponding to a connection with the siphon tube.
4. The top deck area of the crankcase of claim 1 , wherein the plate extends at least partway along a length of the top deck area.
5. The top deck area of the crankcase of claim 1 , wherein the plate further includes an outlet positioned at one end of the plate.
6. The top deck area of the crankcase of claim 1 , wherein one end of the exhaust elbow includes a flange, the flange having a thickness generally greater than a thickness of a wall of the exhaust elbow.
7. The top deck area of the crankcase of claim 1 , wherein the plate is disposed below the exhaust elbow.
8. The top deck area of the crankcase of claim 1 , wherein the plate is attached to the top deck area by welding.
9. The top deck area of the crankcase of claim 1 , wherein the plate is made of metal.
10. An engine comprising:
a cylinder head; and
an engine block having a top deck area, the top deck area comprising:
an exhaust elbow extending from a side surface towards a top surface of the top deck area; and
a plate configured to define a first chamber and a second chamber within the top deck area,
wherein the first chamber is configured to at least partially enclose the exhaust elbow, and
wherein the second chamber is configured to provide a passage for a fluid flow therein, such that the plate is disposed to isolate the second chamber from the exhaust elbow.
11. The engine of claim 10 further comprising:
a siphon tube in fluid communication with the second chamber.
12. The engine of claim 11 , wherein the plate includes a recess corresponding to a connection with the siphon tube.
13. The engine of claim 10 , wherein the plate extends at least partway along a length of the top deck area.
14. The engine of claim 10 , wherein the plate further includes an outlet positioned at one end of the plate.
15. The engine of claim 10 , wherein one end of the exhaust elbow includes a flange, the flange having a thickness generally greater than a thickness of a wall of the exhaust elbow.
16. The engine of claim 10 , wherein the plate is disposed below the exhaust elbow.
17. The engine of claim 10 , wherein the plate is attached to the top deck area by welding.
18. The engine of claim 10 , wherein the plate is made of metal.