FR2398180A1 - Engine coolant pump drive failure signalling - involves circuit responding to voltage drop below predetermined level of generator commonly driven with pump - Google Patents

Engine coolant pump drive failure signalling - involves circuit responding to voltage drop below predetermined level of generator commonly driven with pump

Info

Publication number
FR2398180A1
FR2398180A1 FR7722609A FR7722609A FR2398180A1 FR 2398180 A1 FR2398180 A1 FR 2398180A1 FR 7722609 A FR7722609 A FR 7722609A FR 7722609 A FR7722609 A FR 7722609A FR 2398180 A1 FR2398180 A1 FR 2398180A1
Authority
FR
France
Prior art keywords
coolant pump
engine coolant
voltage drop
predetermined level
pump
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.)
Granted
Application number
FR7722609A
Other languages
French (fr)
Other versions
FR2398180B1 (en
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.)
Automobiles Citroen SA
Original Assignee
Automobiles Citroen SA
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 Automobiles Citroen SA filed Critical Automobiles Citroen SA
Priority to FR7722609A priority Critical patent/FR2398180A1/en
Priority to DE19782832232 priority patent/DE2832232A1/en
Publication of FR2398180A1 publication Critical patent/FR2398180A1/en
Application granted granted Critical
Publication of FR2398180B1 publication Critical patent/FR2398180B1/fr
Granted 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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/14—Safety means against, or active at, failure of coolant-pumps drives, e.g. shutting engine down; Means for indicating functioning of coolant 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
    • F01P2031/00—Fail safe
    • F01P2031/36—Failure of coolant pump

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

The arrangement is intended for signalling a failure in the drive on an IC engine coolant pump, partic. in a motor vehicle, having a common drive for the coolant pump and an electrical generator (11). It responds to the voltage at the output terminals of the generator when this voltage falls below a pre-determined value corresponding with an engine speed no more than the idling speed. The response voltage may be chosen such that, in the event of generator excitation failure during normal operation, the remanant voltage suffices to prevent response as long as engine speed exceeds a predetermined value.
FR7722609A 1977-07-22 1977-07-22 Engine coolant pump drive failure signalling - involves circuit responding to voltage drop below predetermined level of generator commonly driven with pump Granted FR2398180A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7722609A FR2398180A1 (en) 1977-07-22 1977-07-22 Engine coolant pump drive failure signalling - involves circuit responding to voltage drop below predetermined level of generator commonly driven with pump
DE19782832232 DE2832232A1 (en) 1977-07-22 1978-07-21 TEST DEVICE FOR DETERMINING A FAULT IN THE DRIVE OF THE COOLANT PUMP OF AN INTERNAL COMBUSTION MACHINE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7722609A FR2398180A1 (en) 1977-07-22 1977-07-22 Engine coolant pump drive failure signalling - involves circuit responding to voltage drop below predetermined level of generator commonly driven with pump

Publications (2)

Publication Number Publication Date
FR2398180A1 true FR2398180A1 (en) 1979-02-16
FR2398180B1 FR2398180B1 (en) 1980-07-11

Family

ID=9193700

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7722609A Granted FR2398180A1 (en) 1977-07-22 1977-07-22 Engine coolant pump drive failure signalling - involves circuit responding to voltage drop below predetermined level of generator commonly driven with pump

Country Status (2)

Country Link
DE (1) DE2832232A1 (en)
FR (1) FR2398180A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469029A1 (en) * 1979-10-30 1981-05-08 Paris & Du Rhone Fault detector for alternator battery charge regulator - has loss of induced voltage from residual magnetism to detect non-rotation of alternator and provide independent visual fault signal

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110067633B (en) * 2017-02-20 2020-08-04 广州汽车集团股份有限公司 Control method of electronic water pump of engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469029A1 (en) * 1979-10-30 1981-05-08 Paris & Du Rhone Fault detector for alternator battery charge regulator - has loss of induced voltage from residual magnetism to detect non-rotation of alternator and provide independent visual fault signal

Also Published As

Publication number Publication date
FR2398180B1 (en) 1980-07-11
DE2832232A1 (en) 1979-02-22

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Legal Events

Date Code Title Description
CA Change of address
ST Notification of lapse