Internal combustion engine system

Details Internal combustion engine system Internal combustion engine system

1975-08-26

1976-09-21

Myhre, Charles J.

Internal-combustion engines

Cooling

System drained and/or heat-storing

123 4102, 123 4108, 123 4109, 123 411, 123 4151, 165 51, F01P 320

Patent

active

039812790

ABSTRACT:
An internal combustion engine system having a pressurized liquid coolant system whose coolant level automatically adjusts to effect rapid combustion chamber surface temperature rise on cold start. The coolant system includes a valve which automatically opens to drain coolant from the coolant system to a reservoir in response to coolant system pressure falling below a predetermined value because of temperature decrease on engine shut-off to establish a below-normal coolant level relative to the combustion chamber surface when the engine is cold and permits the drained coolant to be pumped back to the coolant system on cold start and then closes in response to coolant system pressure rise above the predetermined value because of coolant temperature increase on engine start-up to establish and maintain the normal coolant level for engine cooling. The coolant system further includes an orifice in the thermostat control valve which is sized to control the rate of air pressure change in the coolant system to prolong establishment of the normal coolant level for a substantial time period on cold start.

REFERENCES:
patent: 1591634 (1926-07-01), Lea
patent: 1643510 (1927-09-01), Muir
patent: 2016179 (1935-10-01), Rosenqvist
patent: 2067924 (1937-01-01), Illsley
patent: 2084940 (1937-06-01), Caldwell
patent: 3080857 (1963-03-01), Middendorf
patent: 3190272 (1965-06-01), Falk
patent: 3242914 (1966-03-01), Benger
patent: 3621907 (1971-11-01), Ephraim
patent: 3757984 (1973-09-01), Barton
patent: 3853270 (1974-12-01), Prebil

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