EP0538660A1 - Dispositif de remplissage automatique de l'huile - Google Patents

Dispositif de remplissage automatique de l'huile Download PDF

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Publication number
EP0538660A1
EP0538660A1 EP92116855A EP92116855A EP0538660A1 EP 0538660 A1 EP0538660 A1 EP 0538660A1 EP 92116855 A EP92116855 A EP 92116855A EP 92116855 A EP92116855 A EP 92116855A EP 0538660 A1 EP0538660 A1 EP 0538660A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
liquid
sump
container
piston
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
EP92116855A
Other languages
German (de)
English (en)
Other versions
EP0538660B1 (fr
Inventor
Carlo Benedetto
Mauro Chicarella
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.)
Irisbus Italia SpA
Original Assignee
Iveco Fiat SpA
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 Iveco Fiat SpA filed Critical Iveco Fiat SpA
Publication of EP0538660A1 publication Critical patent/EP0538660A1/fr
Application granted granted Critical
Publication of EP0538660B1 publication Critical patent/EP0538660B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/04—Filling or draining lubricant of or from machines or engines

Definitions

  • the present invention relates to an automatic device for topping up the liquid in a container.
  • the invention relates in particular to an automatic device for topping up lubricating oil in the sump of an internal combustion engine.
  • automatic top-up devices comprise a system with containers which communicate with float-chambers, or systems in which the oil level in the sump or in the communicating container is detected electronically and topped up by means of an electric pump.
  • the object of the present invention is to provide a device of the type specified at the beginning of the description which achieves high levels of reliability at considerably lower costs than systems in which the level of the oil in the sump is detected electronically.
  • the device includes a sensor cylinder having a piston slidable sealingly in a chamber and being disposed substantially at the desired level for the liquid in the container, the chamber having at least one hole for the passage of the liquid, an actuator cylinder having a piston and inlet and outlet connectors connected to a supplementary reservoir and to the container, respectively, with the interposition of non-return valves, mechanical connection means between the pistons of the sensor cylinder and the actuator cylinder, and programmed operating means for moving the pistons of the sensor and actuator cylinders, the presence or absence of liquid in the chamber of the sensor cylinder preventing or enabling the sliding of the pistons, and the piston of the actuator cylinder thus supplying to the container a quantity of liquid which is correlated with the level of the liquid in the container.
  • the operation of the sensor cylinder is based substantially on the non-compressibility of liquids.
  • the quantity of liquid in the chamber of the sensor cylinder is proportional to the level of the liquid in the container; the actuator cylinder can therefore deliver a certain quantity of liquid only when there is a certain quantity of compressible air in the chamber.
  • the mechanical connection between the pistons of the sensor and actuator cylinders makes the device particularly compact and reliable and its electronics are considerably simplified and are limited to a timer associated with the operating means.
  • the sensor cylinder comprises a blind cylinder disposed with its axis substantially parallel to the surface of the liquid in the container, the arrangement of its axis being such that, in the configuration in which the level in the container is at its maximum, the cylinder is almost completely covered by the liquid.
  • This arrangement improves the sensitivity of the sensor.
  • the maximum level of the oil in the oil sump, indicated C, of a commercial vehicle engine is indicated L in Figure 1.
  • the axis of a blind cylinder 10 fixed in the sump C is substantially parallel to the surface of the oil and is disposed so that, in the configuration shown in Figure 1, in which the level is at its maximum, the surface L laps over the wall of the cylinder 10.
  • the cylinder 10 defines a chamber 12 in which a piston 14 is sealingly slidable.
  • the cylindrical surface of the cylinder 10 has holes 16 adjacent an end opposite its blind end, indicated 10a, through which the oil can pass and the function of which will become clear from the following description.
  • the centre of the piston 14 is fixed to a rod 18 which is slidable sealingly in a through-hole 20 in a side wall P of the sump C.
  • the actuator cylinder 24 has a cylindrical chamber 26 in which the piston 22 is sealingly slidable and has an end 24a with two connectors 28, 30 which are connected to a supplementary oil reservoir 32 and to the sump C, respectively, by means of pipes 28a and 30a.
  • Non-return valves 34 and 36 are fitted in the pipes 28a and 30a, respectively.
  • a solenoid valve 48 connected in the pipe 46 is associated with an electronic timing circuit for putting the compressed-air supply 44 periodically into communication with the pneumatic cylinder 42.
  • the level in the chamber 12 of the blind cylinder 10 When the level L in the sump falls, for example, to a level L1, as shown in Figure 2, the level in the chamber 12 of the blind cylinder 10 also falls simultaneously, by virtue of the presence of the through-holes 16.
  • the operation of the pneumatic cylinder 42 thus enables the piston 14 to travel a distance proportional to the volume of air initially present in the chamber 12 of the cylinder 10 ( Figure 2).
  • the stroke of the piston 14 corresponds to the stroke of the piston 22 of the actuator 24 which delivers a quantity of oil such as to top up the level L1.
  • the chamber 26 is filled with oil from the supplementary reservoir 32 as a result of the return stroke of the piston 22 of the actuator cylinder 24 caused by a spring 43, and the oil is then injected into the sump C during the next topping-up.
  • the pneumatic cylinder may be replaced by other operating means suitable for moving the pistons 14 and 22.
  • the mechanical connection system between the blind cylinder and the actuator cylinder for delivering the lubricating oil to the sump may also differ from that shown by way of example in the drawings.
  • the timer associated with the solenoid valve 48 may be programmable according to the maximum oil flow required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Basic Packing Technique (AREA)
EP92116855A 1991-10-24 1992-10-01 Dispositif de remplissage automatique de l'huile Expired - Lifetime EP0538660B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO910803 1991-10-24
ITTO910803A IT1250322B (it) 1991-10-24 1991-10-24 Dispositivo automatico di rabbocco olio motore.

Publications (2)

Publication Number Publication Date
EP0538660A1 true EP0538660A1 (fr) 1993-04-28
EP0538660B1 EP0538660B1 (fr) 1995-12-06

Family

ID=11409665

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92116855A Expired - Lifetime EP0538660B1 (fr) 1991-10-24 1992-10-01 Dispositif de remplissage automatique de l'huile

Country Status (4)

Country Link
EP (1) EP0538660B1 (fr)
DE (1) DE69206576T2 (fr)
ES (1) ES2080407T3 (fr)
IT (1) IT1250322B (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2295015A (en) * 1994-11-11 1996-05-15 Ravary Abdolmehdy Baghai Vehicle oil level and lubrication system
DE19529733C1 (de) * 1995-08-12 1996-12-05 Mtu Friedrichshafen Gmbh Schmiermittelversorgungssystem für Brennkraftmaschinen
EP0779413A1 (fr) * 1995-12-12 1997-06-18 IVECO FIAT S.p.A. Dispositif de remplissage automatique d'un réservoir avec un liquide et procédé de réglage
EP0779414A1 (fr) * 1995-12-12 1997-06-18 IVECO FIAT S.p.A. Dispositif de remplissage automatique d'un réservoir avec un liquide
CN107588185A (zh) * 2017-11-08 2018-01-16 王娟 风力发电机齿轮箱的润滑油供给装置
CN107606123A (zh) * 2017-11-08 2018-01-19 王娟 用于风力发电机齿轮箱的润滑油供给装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2011625A1 (de) * 1969-03-20 1970-10-01 Caterpillar Tractor Co., Peoria, 111. (V.St.A.) Vorrichtung zum Abfühlen von Flüssigkeitsspiegeln·
GB2084667A (en) * 1980-09-29 1982-04-15 Hurner Erwin Edward Oil cleaning system
EP0416688A1 (fr) * 1989-09-06 1991-03-13 Groeneveld Transport Efficiency B.V. Régulateur de niveau d'huile

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2011625A1 (de) * 1969-03-20 1970-10-01 Caterpillar Tractor Co., Peoria, 111. (V.St.A.) Vorrichtung zum Abfühlen von Flüssigkeitsspiegeln·
GB2084667A (en) * 1980-09-29 1982-04-15 Hurner Erwin Edward Oil cleaning system
EP0416688A1 (fr) * 1989-09-06 1991-03-13 Groeneveld Transport Efficiency B.V. Régulateur de niveau d'huile

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2295015A (en) * 1994-11-11 1996-05-15 Ravary Abdolmehdy Baghai Vehicle oil level and lubrication system
GB2295015B (en) * 1994-11-11 1998-06-24 Ravary Abdolmehdy Baghai Vehicle systems
DE19529733C1 (de) * 1995-08-12 1996-12-05 Mtu Friedrichshafen Gmbh Schmiermittelversorgungssystem für Brennkraftmaschinen
US5836421A (en) * 1995-08-12 1998-11-17 Mtu Motoren- Und Turbinen Union Friedrichshafen Gmbh Lubricating system for internal combustion engines
EP0779413A1 (fr) * 1995-12-12 1997-06-18 IVECO FIAT S.p.A. Dispositif de remplissage automatique d'un réservoir avec un liquide et procédé de réglage
EP0779414A1 (fr) * 1995-12-12 1997-06-18 IVECO FIAT S.p.A. Dispositif de remplissage automatique d'un réservoir avec un liquide
CN107588185A (zh) * 2017-11-08 2018-01-16 王娟 风力发电机齿轮箱的润滑油供给装置
CN107606123A (zh) * 2017-11-08 2018-01-19 王娟 用于风力发电机齿轮箱的润滑油供给装置
CN107606123B (zh) * 2017-11-08 2023-07-25 白城吉电绿电能源有限公司 用于风力发电机齿轮箱的润滑油供给装置
CN107588185B (zh) * 2017-11-08 2023-09-08 大唐桦川风力发电有限公司 风力发电机齿轮箱的润滑油供给装置

Also Published As

Publication number Publication date
ITTO910803A1 (it) 1993-04-25
DE69206576T2 (de) 1996-05-02
IT1250322B (it) 1995-04-07
EP0538660B1 (fr) 1995-12-06
DE69206576D1 (de) 1996-01-18
ES2080407T3 (es) 1996-02-01
ITTO910803A0 (it) 1991-10-24

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