EP0134579A1 - Kühlmantelvorrichtung für eine mit siedender Flüssigkeit gekühlten Brennkraftmaschine - Google Patents

Kühlmantelvorrichtung für eine mit siedender Flüssigkeit gekühlten Brennkraftmaschine Download PDF

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Publication number
EP0134579A1
EP0134579A1 EP84110578A EP84110578A EP0134579A1 EP 0134579 A1 EP0134579 A1 EP 0134579A1 EP 84110578 A EP84110578 A EP 84110578A EP 84110578 A EP84110578 A EP 84110578A EP 0134579 A1 EP0134579 A1 EP 0134579A1
Authority
EP
European Patent Office
Prior art keywords
vapor
coolant
gutter
internal combustion
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.)
Withdrawn
Application number
EP84110578A
Other languages
English (en)
French (fr)
Inventor
Takao Kubozuka
Masahiko Kondo
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Publication of EP0134579A1 publication Critical patent/EP0134579A1/de
Withdrawn legal-status Critical Current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
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/36—Cylinder heads having cooling means for liquid cooling
    • F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream 
    • 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
    • F01P3/00—Liquid cooling
    • F01P3/22—Liquid cooling characterised by evaporation and condensation of coolant in closed cycles; characterised by the coolant reaching higher temperatures than normal atmospheric boiling-point
    • 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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1816—Number of cylinders four
    • 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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/20—SOHC [Single overhead camshaft]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/247—Arrangement of valve stems in cylinder heads the valve stems being orientated in parallel with the cylinder axis

Definitions

  • the present invention relates generally to internal combustion engine and more specifically to a coolant. jacket for an internal engine of the so called "vapor cooled” type, wherein the coolant is boiled and the vapour used as a vehicle for removing heat from the engine.
  • the cooling system is required to remove approximately 4000 Kcal/h.
  • a flow rate of 167 1/min (viz., 4000 - 60 x 4) must be produced by the water pump. This of course undesirably consumes a number of horsepower.
  • the coolant jacket structure is arranged so that the passages or corridor-like arrangements 1 extend over the portions 2 of the engine subject to high heat flux so to enable the coolant to flow freely therethrough and enhance heat removal.
  • the ceiling 3 of the corridor arrangement is arranged to be essentially flat so should any vapor bubbles form, they are readily flushed out by the liquid forced to flow through the cylinder head by the water pump. That is to say, due to the forced flow the removal of any gas bubbles does not represent any particular design problem.
  • this object is fullfilled by an arrangment wherein in order to promote smooth egress of coolant vapour generated by the boiling of a liquid coolant in a coolant jacket of a "vapor cooled" internal combustion engine or the like, a gutter like structure is provided in the ceiling of the coolant jacket and arranged to extend continuously above both the structures of the engine subject to high heat flux (e.g. the combustion chambers, exhaust valves and ports) and the surface of the liquid coolant in which the heated structure is immersed.
  • high heat flux e.g. the combustion chambers, exhaust valves and ports
  • This allows the vapor to rise and subsequently flow without impedence to a vent port or ports and obviate the creation of any pressure differentials within the coolant jacket which adversely effect uniform cooling of the engine.
  • the present invention takes the form of an internal combustion engine which is characterized by a plurality of combustion chambers, a coolant jacket arranged about the combustion chambers and into which coolant is introduced in liquid form in sufficient quantity to maintain the combustion chambers immersed in liquid coolant while provide a vapor space thereabove, the coolant being permitted to boil and generate vapor which is collected in the vapor space, and a structure defining a vapor transfer gutter in the ceiling of the coolant jacket which is essentially free of vertical undulations and which extends continuously over the combustion chambers in a spaced relationship thereto.
  • Figs. 5 to 8 of the drawings show a first embodiment of the present invention.
  • the invention is embodied in a diesel engine comprised of a cylinder block 10 in which a plurality of cylinder bores 12 are formed (only one shown) and a cylinder head 14.
  • the cylinder head is formed with a plurality (note only one is shown) swirl chambers 16, fuel injector and glow plug bores 18, 20 and a plurality of bearing supports 22 on which a cam shaft 24 is journalled.
  • the cylinder head 14 is also formed with a main coolant receiving cavity 26 which extends essentially along the whole length of the cylinder head 14.
  • the inlet and exhaust ports 28, 30 of the engine are formed to open on the same side of the cylinder head 14 and extend through the main cavity 26.
  • Oil transfer bores 32 are formed through the cylinder head so as to convey oil under pressure from an oil pump associated with the cylinder block 10 to the cam shaft bearings, valve stems and like moving elements associated with the cylinder head 14.
  • the present invention features a gutter structure 34 which is formed in the ceiling 36 of the main cavity 26.
  • the gutter 34 is formed so as to have an essentially flat surface.
  • the width of the gutter 34 reduces markedly.
  • the vapor generation at this site tends to be less than directly over the top of a cylinder (e.g. Fig. 5) an abnormally high pressure does not tend to form despite the relative narrowness of the structure at this point.
  • the gutter section 34 is widened.
  • gutter 34 is essentially constant throughout the cylinder head 14 and thus free from pockets, or the like, into which hot vapor can rise and get trapped.
  • the gutter 34 is arranged essentially parallel with the lower deck 38 of the cylinder head 14.
  • this relationship can be varied with the type of engine to which the invention is applied. Viz., it should be kept in mind that the most essential feature is that the gutter be free from vertical vertical undulations.
  • the gutter is advantageously but not necessarily arranged parallel with the level assumed by the coolant when the vehicle or like in which the engine equipped with the present invention is running on a level surface (or alternatively the most common orientation.
  • the gutter section 34 merges with a vapor outlet ports 40, 42 through which the heated vapor is vented to a suitable condenser or radiator.
  • the vapor collected in the gutter shown in Fig. 5 tends to flow smoothly therealong and vent through port 40.
  • the vapor collected in the gutter section 34 shown in Fig. 6 may flow either way along the gutter toward one or both of the vent ports.
  • Fig. 9 shows a second embodiment of the present invention. This arrangement differs from the first in that a vent port 44 is provided per cylinder. In this embodiment the vent ports 44 are each arranged to communicate with the gutter 34 at locations essentially above and intermediate of the inlet and exhaust ports 28, 30. With this arrangement the formation of high pressure vapor pockets within the cylinder head structure is surely prevent.
  • the casting or moulding of the cylinder head embodying the present invention may be carried out with essentially the same ease as conventional head and without any special and/or additional machining processes.
  • the milling of these surfaces after casting can be carried out with approximately the same ease as with conventional heads.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP84110578A 1983-09-08 1984-09-05 Kühlmantelvorrichtung für eine mit siedender Flüssigkeit gekühlten Brennkraftmaschine Withdrawn EP0134579A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP16576483A JPS6060242A (ja) 1983-09-08 1983-09-08 沸騰冷却式エンジン
JP165764/83 1983-09-08

Publications (1)

Publication Number Publication Date
EP0134579A1 true EP0134579A1 (de) 1985-03-20

Family

ID=15818594

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84110578A Withdrawn EP0134579A1 (de) 1983-09-08 1984-09-05 Kühlmantelvorrichtung für eine mit siedender Flüssigkeit gekühlten Brennkraftmaschine

Country Status (2)

Country Link
EP (1) EP0134579A1 (de)
JP (1) JPS6060242A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2697580A1 (fr) * 1992-10-30 1994-05-06 Renault Système de refroidissement par évaporation pour moteur à combustion interne.
FR2764338A1 (fr) * 1997-06-04 1998-12-11 Vaw Mandl & Berger Gmbh Culasse de cylindre pour un moteur a combustion interne, procede pour realiser une telle culasse
EP1538327A1 (de) * 2003-12-04 2005-06-08 Ford Global Technologies, LLC, A subsidary of Ford Motor Company Zylinderkopf mit einem Kühlmittelmantel, der einen Kühlmantelkern und eine Entlüftungsleiste umfasst
EP2392813A1 (de) * 2010-06-03 2011-12-07 Peugeot Citroën Automobiles SA Zylinderkopf, Kern für die Herstellung eines solchen Zylinderkopfs, Herstellungsverfahren eines solchen Zylinderkopfs und entsprechendes Fahrzeug

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111828169A (zh) * 2020-08-10 2020-10-27 田国庆 一种混合动力发动机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1330436A (en) * 1918-12-27 1920-02-10 Essex Motors Internal-combustion engine
DE412531C (de) * 1917-04-20 1925-04-23 Harry Colfax Mallory Vorrichtung zur Regelung der Temperatur der Kuehlfluessigkeit von Verbrennungs-kraftmaschinen
US1632586A (en) * 1927-01-20 1927-06-14 Lester P Barlow Vapor-cooling system for internal-combustion engines
EP0059423A1 (de) * 1981-02-27 1982-09-08 Nissan Motor Co., Ltd. Kühlungssystem einer Brennkraftmaschine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE412531C (de) * 1917-04-20 1925-04-23 Harry Colfax Mallory Vorrichtung zur Regelung der Temperatur der Kuehlfluessigkeit von Verbrennungs-kraftmaschinen
US1330436A (en) * 1918-12-27 1920-02-10 Essex Motors Internal-combustion engine
US1632586A (en) * 1927-01-20 1927-06-14 Lester P Barlow Vapor-cooling system for internal-combustion engines
EP0059423A1 (de) * 1981-02-27 1982-09-08 Nissan Motor Co., Ltd. Kühlungssystem einer Brennkraftmaschine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2697580A1 (fr) * 1992-10-30 1994-05-06 Renault Système de refroidissement par évaporation pour moteur à combustion interne.
FR2764338A1 (fr) * 1997-06-04 1998-12-11 Vaw Mandl & Berger Gmbh Culasse de cylindre pour un moteur a combustion interne, procede pour realiser une telle culasse
EP1538327A1 (de) * 2003-12-04 2005-06-08 Ford Global Technologies, LLC, A subsidary of Ford Motor Company Zylinderkopf mit einem Kühlmittelmantel, der einen Kühlmantelkern und eine Entlüftungsleiste umfasst
EP2392813A1 (de) * 2010-06-03 2011-12-07 Peugeot Citroën Automobiles SA Zylinderkopf, Kern für die Herstellung eines solchen Zylinderkopfs, Herstellungsverfahren eines solchen Zylinderkopfs und entsprechendes Fahrzeug
FR2960916A1 (fr) * 2010-06-03 2011-12-09 Peugeot Citroen Automobiles Sa Culasse, noyau pour la fabrication de cette culasse, procede de fabrication de cette culasse, et vehicule

Also Published As

Publication number Publication date
JPH034740B2 (de) 1991-01-23
JPS6060242A (ja) 1985-04-06

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19840905

AK Designated contracting states

Designated state(s): DE FR GB

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: NISSAN MOTOR CO., LTD.

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19851125

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KONDO, MASAHIKO

Inventor name: KUBOZUKA, TAKAO