JPS6460715A - Cooling system for engine - Google Patents

Cooling system for engine

Info

Publication number
JPS6460715A
JPS6460715A JP21843387A JP21843387A JPS6460715A JP S6460715 A JPS6460715 A JP S6460715A JP 21843387 A JP21843387 A JP 21843387A JP 21843387 A JP21843387 A JP 21843387A JP S6460715 A JPS6460715 A JP S6460715A
Authority
JP
Japan
Prior art keywords
engine
valve
during light
light load
water flow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP21843387A
Other languages
Japanese (ja)
Inventor
Toshimasa Maeda
Naoki Nagano
Hisanori Nakane
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mazda Motor Corp
Original Assignee
Mazda Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mazda Motor Corp filed Critical Mazda Motor Corp
Priority to JP21843387A priority Critical patent/JPS6460715A/en
Publication of JPS6460715A publication Critical patent/JPS6460715A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F01P7/161—Controlling of coolant flow the coolant being liquid by thermostatic control by bypassing pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/14—Indicating devices; Other safety devices
    • F01P11/18—Indicating devices; Other safety devices concerning coolant pressure, coolant flow, or liquid-coolant level
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2023/00—Signal processing; Details thereof
    • F01P2023/08—Microprocessor; Microcomputer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2025/00—Measuring
    • F01P2025/60—Operating parameters
    • F01P2025/62—Load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2070/00—Details
    • F01P2070/06—Using intake pressure as actuating fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F01P7/167—Controlling of coolant flow the coolant being liquid by thermostatic control by adjusting the pre-set temperature according to engine parameters, e.g. engine load, engine speed

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

PURPOSE:To protect an engine by forcedly closing a control valve when a sensor for detecting overheat is abnormal in a system where during light load, the control valve is opened to reduce circulating water flow. CONSTITUTION:A load signal of an engine and a detection valve of a water level sensor 37 disposed in an upper tank 16 are input to CPU 40, and during light load, suction negative pressure is introduced into an actuator 31 through a three-way solenoid valve 34 to open a butterfly valve 28 provided at a communicating portion 27 between a cooling water inlet passage 9 and an outlet passage 11. Accordingly, both the inlet passage 9 and the outlet passage 10 are closed to reduce the circulating water flow supplied to the engine. When the water level sensor 37 detects a decrease in radiator water quantity, the butterfly valve 28 is closed even during light load to secure the circulating water flow to the engine.
JP21843387A 1987-08-31 1987-08-31 Cooling system for engine Pending JPS6460715A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21843387A JPS6460715A (en) 1987-08-31 1987-08-31 Cooling system for engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21843387A JPS6460715A (en) 1987-08-31 1987-08-31 Cooling system for engine

Publications (1)

Publication Number Publication Date
JPS6460715A true JPS6460715A (en) 1989-03-07

Family

ID=16719834

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21843387A Pending JPS6460715A (en) 1987-08-31 1987-08-31 Cooling system for engine

Country Status (1)

Country Link
JP (1) JPS6460715A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005248903A (en) * 2004-03-05 2005-09-15 Mitsubishi Electric Corp Cooling system control method of vehicle power source

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005248903A (en) * 2004-03-05 2005-09-15 Mitsubishi Electric Corp Cooling system control method of vehicle power source

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