EP0342270A1 - Anlasseranlage für Dieselmotoren - Google Patents

Anlasseranlage für Dieselmotoren Download PDF

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Publication number
EP0342270A1
EP0342270A1 EP88119413A EP88119413A EP0342270A1 EP 0342270 A1 EP0342270 A1 EP 0342270A1 EP 88119413 A EP88119413 A EP 88119413A EP 88119413 A EP88119413 A EP 88119413A EP 0342270 A1 EP0342270 A1 EP 0342270A1
Authority
EP
European Patent Office
Prior art keywords
storage tank
oil
starter system
oil storage
engine
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
EP88119413A
Other languages
English (en)
French (fr)
Other versions
EP0342270B1 (de
Inventor
Amilcare Gatti
Franco Marchetto
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.)
Anonima Costruzione Motori Endotermici Acme SpA
Original Assignee
Anonima Costruzione Motori Endotermici Acme 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 Anonima Costruzione Motori Endotermici Acme SpA filed Critical Anonima Costruzione Motori Endotermici Acme SpA
Priority to AT88119413T priority Critical patent/ATE70597T1/de
Publication of EP0342270A1 publication Critical patent/EP0342270A1/de
Application granted granted Critical
Publication of EP0342270B1 publication Critical patent/EP0342270B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N19/00—Starting aids for combustion engines, not otherwise provided for
    • F02N19/001—Arrangements thereof
    • 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
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • 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
    • F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/10—Lubrication of valve gear or auxiliaries
    • F01M9/106—Oil reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Definitions

  • This invention concerns a starter system for direct or indirect injection diesel-cycle engines of small or medium capacity, which provides for the introduction of a measured quantity of lubricating oil into the combustion chamber to assist start-up.
  • This lubricating oil is the same as the oil circulating in the engine and held in the sump of the engine.
  • the invention concerns a system to assist start-up of direct or indirect injection diesel engines of small or medium capacity, that is, up to 20/25 KW, even in very cold weather.
  • One of these systems arranges that the combustion chamber can be put in communication with the exterior for start-up purposes by means of a conduit above the inlet valve.
  • the inlet valve When the engine is turned over, the inlet valve is opened and the oil enters the combustion chamber, increases the compression ratio and, in cooperation with the piston rings, increases the hydraulic seal engagement of the piston.
  • FR-A-2386696 discloses the idea of introducing a measured quantity of oil into the combustion chamber to assist start-up of multi-cylinder diesel engines.
  • the executive art provides for the employment of an external reservoir and pump to inject oil into the combustion chamber at a very high pressure (about 200 atmospheres).
  • DE-C-697824 discloses the idea of introducing a measured quantity of oil into the combustion chamber to reduce wear of the cylinder owing to corrosion (especially in marine engines) and not to assist start-up.
  • the text refers generically to engines producing heat (not only diesel engines).
  • the executive art provides for the employment of an external reservoir to introduce the oil into the combustion chamber through an induction manifold.
  • DE-B-1218795 discloses the idea of introducing a measured quantity of oil into the combustion chamber through the induction manifold to assist start-up of an engine producing heat (generically). It provides for the inclusion of a pump and an external oil reservoir.
  • US-A-3229678 discloses the idea of a device which introduces oil in a measured quantity into the combustion chamber of an engine producing heat (with special reference to marine engines), the purpose being to reduce wear of the cylinder due to corrosion, but the oil is introduced only after a pre-set period of time with a view to reducing the consumption of the oil.
  • the executive art provides for an external reservoir and a pump.
  • the present applicant has designed, tested and embodied this invention, in which the lubricating oil used is the same as that circulating in the lubricating circuit of the engine.
  • the chamber above the inlet valve is connected, for instance by a connecting conduit, to an oil storage tank, closure valve means being interposed which are suitable to shut off the oil in the oil storage tank.
  • the oil storage tank is advantageously, but not necessarily, located above the induction conduit.
  • the oil is either introduced beforehand or is caused to arrive in a desired manner in the oil storage tank.
  • the dimensions of the oil storage tank are such as to hold the required quantity of oil.
  • the storage tank comprises an overflow to discharge any excess of oil advantageously into the drainage circuit of the lubricating oil.
  • the storage tank is fed by the lubrication circuit which serves to take lubricat­ing oil to the various parts of the engine.
  • the storage tank is fed continuously by the lubrication circuit, whereas according to another variant it is fed periodically by the lubrication circuit.
  • the lubrication circuit is connected to the storage tank through a gauged hole or choke so as to avoid losses of pressure in the lubrication circuit during normal use.
  • the lubrication circuit is connected to the storage tank through a small pressure relief valve which allows oil to pass through only when the pressure in the lubrication circuit is higher than pre-set levels.
  • closure valve means cooperate with the connecting conduit in shutting off the liquid in the oil storage tank and can be opened momentarily to allow the oil in the storage tank to flow out.
  • the closure valve means consist of a wedge thrust resiliently against the outlet hole of the oil storage tank.
  • the closure valve means can be actuated externally by grip means, which by overcoming the resistance of spring means put the storage tank in communicat­ion with the connecting cnduit, thus allowing the lubricating oil to flow out into the induction conduit above the inlet valve.
  • the grip means are connected to an automatic actuator, which is switched on when the ignition key is inserted, so that upon the simple act of actuating the start-up of the engine the automatic actuator takes action in the storage tank and releases oil into the specific combustion chamber.
  • the means of the solution are manifold in relation to the geometric design linked to the practical embodiment applied to the various requirements of engines.
  • Fig.1 shows a possible head of an engine which contains, substantially at top dead centre, a piston 11 above which is a combustion chamber 10.
  • An inlet valve 12 cooperates with the combustion chamber 10 and shuts an induction conduit 13.
  • the induction conduit 13 is connected temporarily with the exterior through a connecting conduit 14 and an oil storage tank 24, which is closed momentarily by a plug 23.
  • the plug 23 is removed for start-up and the desired quantity of oil is introduced with an appropriate oil can into the storage tank 24.
  • the plug 23 is then replaced while the oil flows over the inlet valve 12; when the engine is rotated, the inlet valve 12 opens and the oil arrives in the combustion chamber 10, increases the compression ratio, flows down the sides of that chamber 10 and cooperates with the piston rings in improving the engagement seal of the chamber, thus enabling the minimum air temperature necessary for start-up to be reached.
  • Fig.2 shows a possible embodiment applied to an engine head substantially the same as that of Fig.1.
  • Fig.2 shows not only a piston 11, combustion chamber 10, inlet valve 12, induction conduit 13 and connecting conduit 14 but also a storage tank 16 with an overflow 21, which returns any excess of oil within the engine into the lubrication circuit or return circuit for the lubricating oil.
  • closure valve means 17 kept resiliently in the closed position by spring means 15.
  • Grip means 18 are comprised on the exterior of the closure valve means 17 and permit manual actuation, that is, the lifting of the closure valve means 17 and the communication of the storage tank 16 with the connecting conduit 14.
  • the storage tank 16 is connected to a lubrication circuit 22 through a choke 20.
  • the dimensions of the choke 20 are such as to prevent excessively great losses of pressure occurring in the lubrication circuit 22.
  • a pressure relief valve may be comprised which permits oil to reach the storage tank 16 only when desired pressures have been reached within the lubrication circuit 22.
  • the grip means 18 cooperate with an automatic actuator 19 governed by the start-up of the engine.
  • This automatic actuator 19 may be a solenoid or another means suitable for the purpose.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Valve Device For Special Equipments (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
EP88119413A 1988-05-16 1988-11-22 Anlasseranlage für Dieselmotoren Expired - Lifetime EP0342270B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88119413T ATE70597T1 (de) 1988-05-16 1988-11-22 Anlasseranlage fuer dieselmotoren.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8339088 1988-05-16
IT8883390A IT1226453B (it) 1988-05-16 1988-05-16 Starter per motori diesel.

Publications (2)

Publication Number Publication Date
EP0342270A1 true EP0342270A1 (de) 1989-11-23
EP0342270B1 EP0342270B1 (de) 1991-12-18

Family

ID=11321175

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88119413A Expired - Lifetime EP0342270B1 (de) 1988-05-16 1988-11-22 Anlasseranlage für Dieselmotoren

Country Status (4)

Country Link
EP (1) EP0342270B1 (de)
AT (1) ATE70597T1 (de)
DE (1) DE3867062D1 (de)
IT (1) IT1226453B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0814259A1 (de) * 1996-06-19 1997-12-29 Motorenfabrik Hatz GmbH & Co. KG Kaltstartvorrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE697824C (de) * 1937-11-05 1940-10-24 C & S Clementson Einrichtung zur selbsttaetigen Zufuehrung einer zusaetzlichen Schmieroelmenge beim Anlassen von Brennkraftmaschinen
US3229678A (en) * 1965-06-08 1966-01-18 Roy L Anspach Lubricating device
DE1218795B (de) * 1960-04-05 1966-06-08 Josef Eicher Einrichtung zum Erhoehen des Verdichtungs-verhaeltnisses beim Anlassen von Hubkolben-Brennkraftmaschinen
FR2386696A1 (fr) * 1977-04-05 1978-11-03 Whittaker Corp Procede et dispositif de demarrage a froid d'un moteur a plusieurs cylindres du type diesel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE697824C (de) * 1937-11-05 1940-10-24 C & S Clementson Einrichtung zur selbsttaetigen Zufuehrung einer zusaetzlichen Schmieroelmenge beim Anlassen von Brennkraftmaschinen
DE1218795B (de) * 1960-04-05 1966-06-08 Josef Eicher Einrichtung zum Erhoehen des Verdichtungs-verhaeltnisses beim Anlassen von Hubkolben-Brennkraftmaschinen
US3229678A (en) * 1965-06-08 1966-01-18 Roy L Anspach Lubricating device
FR2386696A1 (fr) * 1977-04-05 1978-11-03 Whittaker Corp Procede et dispositif de demarrage a froid d'un moteur a plusieurs cylindres du type diesel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0814259A1 (de) * 1996-06-19 1997-12-29 Motorenfabrik Hatz GmbH & Co. KG Kaltstartvorrichtung
DE19624387A1 (de) * 1996-06-19 1998-01-02 Hatz Motoren Kaltstartvorrichtung
DE19624387C2 (de) * 1996-06-19 1999-08-19 Hatz Motoren Kaltstartvorrichtung

Also Published As

Publication number Publication date
IT1226453B (it) 1991-01-16
IT8883390A0 (it) 1988-05-16
EP0342270B1 (de) 1991-12-18
ATE70597T1 (de) 1992-01-15
DE3867062D1 (de) 1992-01-30

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