Claims
- 1. A method of assembling a piston where said piston has an outer annular wall having an inner surface and an inner annular portion having an inner surface, said method comprising the steps of:
connecting a baffle plate between said inner surface of said outer annular wall and said inner surface of said inner annular portion, said baffle plate having a first end portion; positioning a standpipe proximate said first end portion of said baffle plate, said standpipe extending axially towards said bowl portion; securing said standpipe between said first end portion of said first baffle plate and a first end portion of a second baffle plate; and connecting said second baffle plate between said inner surface of said outer annular wall and said inner surface of said inner annular portion, said first baffle plate, said second baffle plate, said inner surface of said inner annular portion, and said inner surface of said outer annular wall defining said closed cooling gallery.
- 2. The method as set out in claim 1 wherein said positioning step is inserting said standpipe in a receiving groove in said first baffle plate.
- 3. The method as set out in claim 2 wherein said receiving groove on said first baffle plate and a receiving groove on said second baffle plate engage a sealing groove on said standpipe.
- 4. The method as set out in claim 1 wherein said connecting step is press fitting said first baffle plate between said inner surface of said inner annular portion and said inner surface of said outer annular wall.
- 5. The method as set out in claim 1 further comprising the step of abutting said first baffle plate against said second baffle plate distal from said standpipe.
- 6. A piston comprising:
a top portion defining a central portion and a periphery portion; an outer annular wall extending axially from said periphery portion, said outer annular wall having an inner surface; an inner annular portion extending axially from said top portion, said inner annular portion being radially inward from said outer annular wall, said inner annular portion having an inner surface; a first baffle plate extending between said inner surface on said inner annular portion and said inner surface of said outer annular wall, said first baffle plate having a first receiving groove proximate a first end portion; a second baffle plate extending between said inner surface on said inner annular portion and said inner surface of said outer annular wall, said second baffle plate having a first receiving groove proximate a first end portion of said second baffle plate; and a standpipe positioned between said first receiving groove of said first baffle plate and said first receiving groove of said second baffle plate, a closed cooling gallery defined by said first baffle plate, said second baffle plate, said inner surface of said inner annular portion, and said inner surface of said outer annular wall.
- 7. The piston as set out in claim 6 including a drain hole between said first baffle plate and said second baffle plate.
- 8. The piston as set out in claim 7 including a drain pipe positioned in said drain hole.
- 9. The piston as set out in claim 6 wherein said standpipe is made from steel.
- 10. The piston as set out in claim 6 wherein said standpipe is funnel shaped.
- 11. The piston as set out in claim 6 wherein the first baffle plate is metallic.
- 12. The piston as set out in claim 6 wherein said first baffle plate is welded to said inner surface of said outer annular wall and said annular inner portion.
- 13. An internal combustion engine comprising:
an engine block defining a bore; a cylinder head connected with said engine block; and a piston positioned in said bore, said piston having a first baffle plate and a second baffle plate extending between an inner annular portion and an outer annular wall, said piston having a standpipe positioned between said first baffle plate and said second baffle plate.
- 14. The internal combustion engine as set out in claim 13 wherein said standpipe being positioned between a first receiving groove on said first baffle plate and a second receiving groove on said second baffle plate.
- 15. The internal combustion engine as set out in claim 13 including a drain hole between said first baffle plate and said second baffle plate.
- 16. The internal combustion engine as set out in claim 15 including a drain pipe positioned in said drain hole.
- 17. The internal combustion engine as set out in claim 13 wherein said first baffle plate and said second baffle plate are press fit between said inner annular portion and said outer annular wall.
- 18. The internal combustion engine as set out in claim 13 wherein said piston having a closed cooling gallery.
- 19. The internal combustion engine as set out in claim 18 wherein closed gallery extends between said inner annular portion, said outer annular wall, and said first baffle plate and said second baffle plate.
Parent Case Info
[0001] This application is a continuation-in-part of co-pending application Ser. No. 09/691,372, filed on Oct. 10, 2000.
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
09691372 |
Oct 2000 |
US |
Child |
10037147 |
Dec 2001 |
US |