Internal-combustion engines – Cooling – Internal cooling of moving parts; e.g. – hollow valves,...
Reexamination Certificate
2006-06-20
2006-06-20
Argenbright, Tony M. (Department: 3747)
Internal-combustion engines
Cooling
Internal cooling of moving parts; e.g., hollow valves,...
C123S1960CP
Reexamination Certificate
active
07063049
ABSTRACT:
A piston cooling spray jet, installation tool there for, and method for the installation of the spray jet in an engine cylinder block are provided. A piston cooling nozzle has a hollow main body portion adapted to be press fit into a through bore of the engine cylinder block. A first end of the through bore is located in a piston gallery and a second end of the through bore is located in the main bearing journal. The through bore intersects with an oil circuit in the cylinder block. The main body portion of the nozzle has an orientation feature. An installation tool has a main body portion adapted to mateably engage a surface of the main bearing journal. A cap screw extends through an aperture in the main body portion, and an orientation key affixed to the main body portion partially surrounds the cap screw.
REFERENCES:
patent: 6298810 (2001-10-01), Chimonides et al.
patent: 6526871 (2003-03-01), Zhu et al.
patent: 6532912 (2003-03-01), Moller et al.
patent: 6672262 (2004-01-01), Bontaz
Jagodzinski Stanley Milton
Kemp Dominic Alan
Kriener Larry Linn
Lohmann Craig William
Argenbright Tony M.
Deere & Company
Harris Katrina
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