Internal-combustion engines – Cooling – System drained and/or heat-storing
Patent
1995-08-31
1997-09-09
Kamen, Noah P.
Internal-combustion engines
Cooling
System drained and/or heat-storing
440 88, 440900, F01P 1102
Patent
active
056645260
ABSTRACT:
An apparatus for separating solid material from cooling water in the cooling system of the engine block of a marine engine. The engine block comprises a plurality of cylinder bores surrounded by a cooling passage through which cooling water is pumped. The bottom portion of the block includes a drain outlet that communicates with the cooling passage and a tubular separating member has a first generally horizontal section that is sealed within the drain outlet. The tubular separator also includes a second section that is located within the cooling passage and extends downwardly from the inner end of the first section and is located between two adjacent cylinder bores. The lower end of the second section is closed and a port is provided in the side of the second section adjacent the closed end and facing toward one of the cylinder bores. The outer end of the first section of the tubular member, which is located on the exterior of the block, is connected through a suitable hose or conduit to an automatic drain valve which is located at a level beneath the engine block. When the ambient temperature falls beneath a selected value, the drain valve will open and water will drain from the engine block through the tubular separator to the drain valve, while solid debris will collect in the bottom of the cooling passage beneath the level of the port to prevent the debris from contacting the temperature responsive valve.
REFERENCES:
patent: 1468068 (1923-09-01), Hanson
patent: 4082068 (1978-04-01), Hale
patent: 4693690 (1987-09-01), Henderson
patent: 4758190 (1988-07-01), Van Buren
"Dole Freeze Protection Valve", Eaton Corporation.
Axton Terry D.
Gruenwald David J.
Hughes William E.
Jaeger Matthew W.
Logan Andrew K.
Brunswick Corporation
Kamen Noah P.
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