Cooling gallery fan assembly for a piston

Details Cooling gallery fan assembly for a piston Cooling gallery fan assembly for a piston

2007-11-27

2007-11-27

Cronin, Stephen K. (Department: 3747)

Internal-combustion engines

Cooling

Internal cooling of moving parts; e.g., hollow valves,...

C123S041340, C123S193100, C092S186000

Reexamination Certificate

active

11472755

ABSTRACT:
A piston for an internal combustion engine defining an axis of motion and including an annular cooling gallery defined within the piston. The cooling gallery extends annularly about the axis of motion of the piston. A plurality of annularly spaced fan blades is positioned within the cooling gallery. Each fan blade is oriented diagonally within the cooling gallery to direct a cooling fluid in an annular direction about the axis of motion of the piston.

REFERENCES:
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patent: 4175502 (1979-11-01), Moebus
patent: 4581983 (1986-04-01), Moebus
patent: 4587932 (1986-05-01), Moebus
patent: 4608947 (1986-09-01), Stadler
patent: 6532913 (2003-03-01), Opris

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