EP2037110A2 - Système de protection pour un moteur à combustion interne - Google Patents

Système de protection pour un moteur à combustion interne Download PDF

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Publication number
EP2037110A2
EP2037110A2 EP08160709A EP08160709A EP2037110A2 EP 2037110 A2 EP2037110 A2 EP 2037110A2 EP 08160709 A EP08160709 A EP 08160709A EP 08160709 A EP08160709 A EP 08160709A EP 2037110 A2 EP2037110 A2 EP 2037110A2
Authority
EP
European Patent Office
Prior art keywords
coolant
point
engine
tank
protection system
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.)
Withdrawn
Application number
EP08160709A
Other languages
German (de)
English (en)
Other versions
EP2037110A3 (fr
Inventor
Narayanan Annamalai Sathiyasivan
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.)
Tata Motors Ltd
Original Assignee
Tata Motors Ltd
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 Tata Motors Ltd filed Critical Tata Motors Ltd
Publication of EP2037110A2 publication Critical patent/EP2037110A2/fr
Publication of EP2037110A3 publication Critical patent/EP2037110A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • 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
    • F01P2025/00—Measuring
    • F01P2025/70—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
    • F01P2031/00—Fail safe
    • F01P2031/22—Fail safe using warning lamps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D2041/228—Warning displays

Definitions

  • This invention relates to protection system used in vehicles and more particularly this relates to engine protection system that monitors engine operating conditions and disables the engine in the event of non-functioning of cooling system or short fall of cooling media.
  • An automobile may be either air-cooled or coolant cooled.
  • the engine In case of an air cooled engine, the engine is mounted such that air passes through it when the automobile is in motion. The passing over of air over the engine block ensures it's cooling.
  • this type of cooling is effective only for smaller engines like those used in scooters or motorbikes. Bigger engines generally are coolant cooled. In this system coolant is circulated through a coolant jacket in the engine block with an aid of a pump. The coolant while it passes through the engine block carries with it the heat of combustion, this heat is then dissipated through a radiator placed in front of the vehicle.
  • Coolant in the cooling system may boil and evaporate, and if the oil film burns away additional friction and wear will occur between cylinder and piston.
  • a radiator In automobiles with an internal combustion engine, a radiator is connected to channels running through the engine and cylinder head, through which a liquid is pumped. This liquid is typically a mixture of coolant with Ethylene glycol as antifreezer.
  • the fluid moves in a closed system from the radiator to the engine, where it conducts heat away from the engine parts and carries the heat primarily to the radiator.
  • the radiator is typically mounted behind the vehicle's grille, with cold air driven through the radiator to cool the radiator, the fluid inside, and therefore the engine. Between the engine and the radiator lies the thermostat, a temperature operated valve. It remains closed, restricting coolant flow, until the engine reaches the thermostat's activation temperature. This arrangement allows the engine temperature to be maintained in the ideal operating range.
  • the coolant Since the coolant is constantly under pressure, it can be directed to engine at high temperature locations, such as valve seats and plug bosses.
  • the total coolant cooling system which includes radiator, coolant pump, coolant jacket and all connecting pipes and hoses should be perfectly enclosed. There should not be any leakage at any point or any part of the entire coolant cooling system. And if it happens the coolant in the cooling system may drain. Due to less amount of coolant in the system, the temperature of the engine will keep on increasing and ultimately which will result is over heating of engine.
  • the main object of this invention is to provide an engine protection system that can disable the engine in the event of shortage or leakage of cooling media to prevent engine seizure.
  • Another object of this invention is to provide an engine protection system which is simple and cost effective.
  • Engine protection system in accordance with this invention basically comprises at least one float sensor, auxiliary coolant tank, a relay, Fuel Injection Pump (FIP) solenoid switch and coolant level warning indicator
  • said float sensor basically comprises a sensor stem, a magnetic float freely mounted on said stem and a magnetic reed valve provided at free end of the said stem and is provided on an auxiliary coolant tank to sense the level of coolant inside the said tank.
  • Said auxiliary coolant tank is provided to maintain sufficient coolant level inside the radiator.
  • Said relay is having two coil points, one pole point, one normally open and one normally close point. Wherein said one coil point is connected to first point of float sensor and another coil point is connected to coolant level warning indicator through an earthling.
  • Said pole point is connected to power supply and second point of float sensor, said normally open point is connected to coolant level warning indicator and normally close point is connected to FIP solenoid switch.
  • Said coolant level warning indicator is provided at instrument cluster.
  • Engine protection system basically comprises at least one float sensor (1), auxiliary coolant tank (2), a relay (3), Fuel Injection Pump (FIP) solenoid switch (4) in case of diesel engine and coolant level warning indicator (5)
  • said float sensor basically comprises a sensor stem (11), a magnetic float (10) freely mounted on said stem and a magnetic reed valve (12) provided at free end of the said stem and is provided on cap (13) of an auxiliary coolant tank (2) to sense the level of coolant inside the said tank.
  • Said auxiliary coolant tank is provided to maintain sufficient coolant level inside the radiator (not shown).
  • Said relay is having two coil points (A, E), one pole point (B), one normally open point (C) and one normally close point (D).
  • said coil point (A) is connected to first point (6) of float sensor (1) and another coil point (E) is connected to coolant level warning indicator (5) through an earthing point (7).
  • Said pole point (B) is connected to power supply (8) and second point (9) of float sensor (1), said normally open point (C) is connected to coolant level warning indicator (5) and normally close point (D) is connected to FIP solenoid switch (4).
  • Said coolant level warning indicator is provided at instrument cluster (not shown).
  • Engine protection system basically comprises at least one float sensor (1), auxiliary coolant tank (2), a relay (3), Engine control unit (4) in case of petrol engine and coolant level warning indicator (5)
  • said float sensor basically comprises a sensor stem (11), a magnetic float (10) freely mounted on said stem and a magnetic reed valve (12) provided at free end of the said stem and is provided on cap (13) of an auxiliary coolant tank (2) to sense the level of coolant inside the said tank.
  • Said auxiliary coolant tank is provided to maintain sufficient coolant level inside the radiator (not shown).
  • Said relay is having two coil points (A, E), one pole point (B), one normally open point (C) and one normally close point (D).
  • said coil point (A) is connected to first point (6) of float sensor (1) and another coil point (E) is connected to coolant level warning indicator (5) through an earthing point (7).
  • Said pole point (B) is connected to power supply (8) and second point (9) of float sensor (1), said normally open point (C) is connected to coolant level warning indicator (5) and normally close point (D) is connected to said Engine control unit (4).
  • Said coolant level warning indicator is provided at instrument cluster (not shown).

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Level Indicators Using A Float (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
EP08160709A 2007-09-14 2008-07-18 Système de protection pour un moteur à combustion interne Withdrawn EP2037110A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IN1773MU2007 2007-09-14

Publications (2)

Publication Number Publication Date
EP2037110A2 true EP2037110A2 (fr) 2009-03-18
EP2037110A3 EP2037110A3 (fr) 2010-01-20

Family

ID=40149790

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08160709A Withdrawn EP2037110A3 (fr) 2007-09-14 2008-07-18 Système de protection pour un moteur à combustion interne

Country Status (2)

Country Link
EP (1) EP2037110A3 (fr)
ZA (1) ZA200803383B (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102720594A (zh) * 2012-06-27 2012-10-10 浙江大学 防爆柴油机自动保护装置
US9458759B2 (en) 2014-12-26 2016-10-04 Ford Global Technologies, Llc Method and system for engine cooling system control
US9719409B2 (en) 2014-12-26 2017-08-01 Ford Global Technologies, Llc Method and system for engine cooling system control
US9726069B2 (en) 2014-12-26 2017-08-08 Ford Global Technologies, Llc Method and system for engine cooling system control
FR3052185A1 (fr) * 2016-06-07 2017-12-08 Peugeot Citroen Automobiles Sa Procede de remplissage en fluide caloporteur d’un circuit de refroidissement
US10365146B2 (en) 2014-12-26 2019-07-30 Ford Global Technologies, Llc Method and system for engine cooling system control
US10513967B2 (en) 2014-12-26 2019-12-24 Ford Global Technologies, Llc Method and system for engine cooling system control

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1427343A (fr) * 1972-08-04 1976-03-10
US3964567A (en) * 1974-12-23 1976-06-22 Mcginty Otto Wayne Low coolant level protection system
DE4317788C2 (de) * 1993-05-28 1995-04-27 Bayerische Motoren Werke Ag Verdampfungskühlsystem für eine Brennkraftmaschine
JP2004067010A (ja) * 2002-08-08 2004-03-04 Denso Corp 車両の前端構造及びラジエータサポート

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102720594A (zh) * 2012-06-27 2012-10-10 浙江大学 防爆柴油机自动保护装置
CN102720594B (zh) * 2012-06-27 2015-01-21 浙江大学 防爆柴油机自动保护装置
US9458759B2 (en) 2014-12-26 2016-10-04 Ford Global Technologies, Llc Method and system for engine cooling system control
US9719409B2 (en) 2014-12-26 2017-08-01 Ford Global Technologies, Llc Method and system for engine cooling system control
US9726069B2 (en) 2014-12-26 2017-08-08 Ford Global Technologies, Llc Method and system for engine cooling system control
US10100713B2 (en) 2014-12-26 2018-10-16 Ford Global Technologies, Llc Method and system for engine cooling system control
US10365146B2 (en) 2014-12-26 2019-07-30 Ford Global Technologies, Llc Method and system for engine cooling system control
US10513967B2 (en) 2014-12-26 2019-12-24 Ford Global Technologies, Llc Method and system for engine cooling system control
US10648397B2 (en) 2014-12-26 2020-05-12 Ford Global Technologies, Llc Method and system for engine cooling system control
US11041430B2 (en) 2014-12-26 2021-06-22 Ford Global Technologies, Llc Method and system for engine cooling system control
FR3052185A1 (fr) * 2016-06-07 2017-12-08 Peugeot Citroen Automobiles Sa Procede de remplissage en fluide caloporteur d’un circuit de refroidissement
WO2017212134A1 (fr) * 2016-06-07 2017-12-14 Psa Automobiles S.A. Procede de remplissage en fluide caloporteur d'un circuit de refroidissement

Also Published As

Publication number Publication date
ZA200803383B (en) 2009-01-28
EP2037110A3 (fr) 2010-01-20

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