Piston-cooling arrangement for an internal combustion engine

Details Piston-cooling arrangement for an internal combustion engine Piston-cooling arrangement for an internal combustion engine

2007-04-10

2007-04-10

Kamen, Noah P. (Department: 3747)

Internal-combustion engines

Cooling

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

C123S1960CP

Reexamination Certificate

active

11324449

ABSTRACT:
The invention relates to an internal combustion engine having a piston-cooling arrangement (1) which has at least one spray device (2, 27; 2, 39) which is supplied with a coolant/lubricant via at least one supply passageway (3). The supply passageway (3) is arranged in a module (4) composed of a crankshaft-bearing structural element (6) and a crankshaft-bearing cap (7). The spray device (2, 27; 2, 39) is coupled to the crankshaft-bearing cap (7), a crankshaft-bearing shell (14) in the region of the supply passageway (3). Supply passageway (3) also connect to through-opening (16), so that coolant/lubricant can be directed via the supply passageway (3) to both the spray device (2, 27; 2, 39) and a crankshaft (17). The spray device (2) is designed as an oil-spray nozzle (27) or alternatively as a spray hole (39) integrated in the crankshaft-bearing cap (7).

REFERENCES:
patent: 4010718 (1977-03-01), Stewart
patent: 5533472 (1996-07-01), Sands et al.
patent: 6532912 (2003-03-01), Moller et al.
patent: 7077096 (2006-07-01), Matsuda
patent: 2004/0055545 (2004-03-01), Baldwin

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