Parallel flow coolant circuit for internal combustion aircraft e

Details Parallel flow coolant circuit for internal combustion aircraft e Parallel flow coolant circuit for internal combustion aircraft e

1990-08-10

1991-10-22

Kamen, Noah P.

Internal-combustion engines

Cooling

Multiple cylinders with equalized cooling

123 56AA, 123 56BA, F02B 7518

Patent

active

050585355

ABSTRACT:
An improved cooling system for an internal combustion aircraft engine having horizontally opposed cylinders. The cooling system comprises a coolant design which delivers and removes coolant in a parallel circuit. The coolant flows from a common main coolant inlet line which branches into two secondary inlet lines. Each secondary inlet line has fitted thereto a number of cylinder inlet lines which branch off from the secondary inlet line to each deliver coolant to their respective cylinder. The heated coolant is removed via cylinder coolant outlet lines fitted to each cylinder. The cylinder outlet lines fluidly interconnect one of two secondary outlet lines. The secondary outlet lines combine into one main outlet line for delivery to a ram air cooled heat exchanger to begin the process again. To further assist in cooling, coolant enters the head portion of the cylinder and exits from the intermediate portion, thereby directing the coolest fluid first to the hottest portion of the cylinder.

REFERENCES:
patent: 754418 (1904-03-01), Brennan
patent: 877294 (1908-01-01), Chase et al.
patent: 1145995 (1915-07-01), Johnson
patent: 1467641 (1923-09-01), Johnson
patent: 1680567 (1928-08-01), Pitzman
patent: 1875580 (1932-09-01), Fisher

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