DEVICE TO CONTROL WORKING TEMPERATURE OF COOLING LIQUID IN INTERNAL COMBUSTION ENGINE Russian patent published in 2005 - IPC

Abstract RU 2253024 C2

FIELD: mechanical engineering; transport engineering.

SUBSTANCE: invention relates to automatic control of liquid temperature in engine cooling system. According to proposed invention, device contains three-way control member with branch pipes to deliver cooling liquid from engine, directing liquid to bypassing and to radiator, temperature transmitter, electric actuator, control unit. Control member has cooling liquid distributing reservoir with rotary valve connected with electric actuator and through holes, with branch pipes to direct cooling liquid to bypassing, radiator and additional branch pipe whose output is connected to heater. Device is furnished also with load transmitter installed on engine and connected with programmable control unit containing setter and comparator whose input is connected to temperature and load transmitters, and output, to electric actuator of control member.

EFFECT: simplified design of control members, reduced time taken for warming up to engine working temperature, possibility of selection of cooling system working temperature and maintaining preset temperature conditions at variable loads of engine.

2 cl, 3 dwg

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RU 2 253 024 C2

Authors

Timofeev V.N.

Pozdeev A.M.

Timakova L.V.

Dates

2005-05-27—Published

2003-05-26—Filed