EP0046505A1 - Cylindre pour une machine à pistons alternatifs - Google Patents

Cylindre pour une machine à pistons alternatifs Download PDF

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Publication number
EP0046505A1
EP0046505A1 EP81105586A EP81105586A EP0046505A1 EP 0046505 A1 EP0046505 A1 EP 0046505A1 EP 81105586 A EP81105586 A EP 81105586A EP 81105586 A EP81105586 A EP 81105586A EP 0046505 A1 EP0046505 A1 EP 0046505A1
Authority
EP
European Patent Office
Prior art keywords
ring
cylinder
cylinder according
cylinder head
outside
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
EP81105586A
Other languages
German (de)
English (en)
Other versions
EP0046505B1 (fr
Inventor
Rolf Dipl.-Ing. Eckert
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6110299&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0046505(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Priority to AT81105586T priority Critical patent/ATE6685T1/de
Publication of EP0046505A1 publication Critical patent/EP0046505A1/fr
Application granted granted Critical
Publication of EP0046505B1 publication Critical patent/EP0046505B1/fr
Expired 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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/11—Thermal or acoustic insulation
    • 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 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/04—Cylinders; Cylinder heads  having cooling means for air cooling

Definitions

  • the invention relates to a cylinder for reciprocating piston machines with a ring which is arranged between the cylinder head and the cylinder tube and forms part of the cylinder inner wall.
  • the invention is based on the object of reducing the heat dissipation via the cylinder wall in the area of the combustion chamber in order to increase the efficiency, and to increase the combustion chamber wall temperature in order to reduce the HC emissions in cold start and part-load operation. Tensions between the The cylinder head and the cylinder tube due to different thermal expansion should be removed if possible.
  • the ring for thermal insulation is made of ceramic.
  • Ceramic as a good heat-insulating material is known per se, but it is only through the use according to the invention as a heat-insulating ring that it becomes suitable for the desired objectives in a particularly advantageous manner.
  • the large forces exerted by the cylinder head screws only act as compressive forces on the ceramic part, for which the material is well suited.
  • the forces caused by the combustion chamber pressure cause an undesirable tensile stress in the material, which, however, is completely evenly distributed due to the ring shape.
  • the ring is preferably designed so that it is not overrun by the upper piston ring, which could lead to damage even with very small joint steps. At the same time, this ensures that the upper piston ring lies in the TDC on a well-cooled part of the combustion chamber wall, so that overheating with the risk of oil carbon deposits is avoided.
  • radial tensions between the cylinder head and the heat-insulating ring are reduced by an interposed washer, which forms two sliding planes for micro-displacements, while the same can be achieved for tensions between the cylinder tube and the heat-insulating ring by an additional washer.
  • Sheet steel is well suited as a material for this.
  • the ceramic ring with corresponding fitting parts is simply inserted between the cylinder head and the cylinder tube and is fully or partially exposed to the cooling medium.
  • the ring is sealed by the cylinder head and cylinder tube on the outside.
  • Thermal protection for the combustion chamber is ensured while the surface, which is used for heat dissipation from the cylinder head and the lower part of the cylinder tube, is also used. this is in a thermally conductive connection, is enlarged by the outer metallic envelope of the heat protection ring. This applies in particular if this casing is also provided with cooling fins.
  • the cylinder head and cylinder tube can be clamped together in the usual way or also shrunk, screwed or welded onto one another.
  • the ring can be separated by a radial cut and installed compressed under internal stress; in this way, a tight connection between the surrounding part and the heat-insulating ring is ensured even in the case of strong thermal expansion of the surrounding head or cylinder tube. If the ring is divided several times, the partial rings can be installed with an offset joint for better tightness.
  • the ring according to the invention is also in the case of an otherwise ribbed one Cylinder tube is smooth and cylindrical on the outside.
  • Fig. 1 the cylinder head 1, the cylinder tube 2 and the ring made of ceramic 3 is shown in a section through the cylinder axis. Between the ring 3 and the cylinder head 1 there is an annular disc 4, while a further annular plate 5 is shown exclusively in the left half of the section between the ring 3 and the cylinder tube 2.
  • the intake 6 and exhaust port 7 with inserted valve seats 8 and 9 can be seen.
  • With 10 is the position of the upper piston ring in TDC.
  • the cylinder tube 2 is provided with a finned tube 12 and a screwed ribbed head part 13.
  • the head part 13 of the cylinder tube 2 is positively connected to the cylinder head 1 and completely surrounds the ceramic 3 ring.
  • the ring 3 is divided four times horizontally and is shown installed vertically with an offset joint, while in the right half the ring 3 is made in one piece.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Physics & Mathematics (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Reciprocating Pumps (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Compressor (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
EP81105586A 1980-08-23 1981-07-16 Cylindre pour une machine à pistons alternatifs Expired EP0046505B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81105586T ATE6685T1 (de) 1980-08-23 1981-07-16 Zylinder fuer hubkolbenmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803031926 DE3031926A1 (de) 1980-08-23 1980-08-23 Zylinder fuer hubkolbenmaschinen
DE3031926 1980-08-23

Publications (2)

Publication Number Publication Date
EP0046505A1 true EP0046505A1 (fr) 1982-03-03
EP0046505B1 EP0046505B1 (fr) 1984-03-14

Family

ID=6110299

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81105586A Expired EP0046505B1 (fr) 1980-08-23 1981-07-16 Cylindre pour une machine à pistons alternatifs

Country Status (4)

Country Link
US (1) US4462343A (fr)
EP (1) EP0046505B1 (fr)
AT (1) ATE6685T1 (fr)
DE (2) DE3031926A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0105108A1 (fr) * 1982-09-30 1984-04-11 Klöckner-Humboldt-Deutz Aktiengesellschaft Moteur à combustion interne alternatif

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4831976A (en) * 1987-02-02 1989-05-23 General Motors Corporation Engine with valve seat inserts and method of retaining
US5072697A (en) * 1991-03-13 1991-12-17 Sputhe Alan C Sealing apparatus for an internal combustion engine
FI106972B (fi) 1999-06-04 2001-05-15 Waertsilae Tech Oy Ab Koksinpoistorengasjärjestely
US7748219B2 (en) * 2005-03-23 2010-07-06 Pdm Solar, Inc. method and apparatus to convert low temperature thermal energy to electricity
US20090077961A1 (en) * 2007-09-24 2009-03-26 Baker David M Heat Concentrator Piston and Chamber

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2630225A1 (de) * 1976-07-06 1978-01-19 Kloeckner Humboldt Deutz Ag Rippenzylinder fuer eine luftgekuehlte hubkolbenmaschine
DE2729230A1 (de) * 1977-06-29 1979-01-11 Daimler Benz Ag Brennkraftmaschine
DE2752633A1 (de) * 1977-11-25 1979-05-31 Kloeckner Humboldt Deutz Ag Zylinder fuer eine hubkolbenbrennkraftmaschine
DE2937788A1 (de) * 1979-09-19 1981-04-02 Klöckner-Humboldt-Deutz AG, 5000 Köln Leichtmetallzylinderkopf fuer brennkraftmaschinen

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE636782C (de) * 1936-10-14 Michael Martinka Dipl Ing Arbeitszylinder fuer Brennkraftmaschinen
GB178827A (en) * 1921-04-19 1923-05-10 Moteurs Gnome & Rhone Soc D Improvements in combustion chambers for internal combustion engines
US1814781A (en) * 1927-05-04 1931-07-14 Ass Elect Ind Internal combustion engine
US1872931A (en) * 1928-03-19 1932-08-23 Doherty Res Co Fuel supply for internal combustion engines
US2577022A (en) * 1945-11-22 1951-12-04 Sulzer Ag Piston ring
US3081754A (en) * 1961-02-14 1963-03-19 Georges Raymond Internal combustion engines, in particular of the constant pressure cycle type
DE1301655C2 (de) * 1965-01-12 1970-04-23 Daimler Benz Ag Brennkraftmaschine mit fluessigkeitsgekuehlten Zylinderlaufbuchsen
US3408995A (en) * 1967-05-22 1968-11-05 Thomas A. Johnson Combustion chamber design and material for internal combustion cylinders and engines
JPS5332336B2 (fr) * 1973-05-24 1978-09-07
DE7621243U1 (de) * 1976-07-06 1980-02-21 Kloeckner-Humboldt-Deutz Ag, 5000 Koeln Rippenzylinder fuer eine luftgekuehlte hubkolbenmaschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2630225A1 (de) * 1976-07-06 1978-01-19 Kloeckner Humboldt Deutz Ag Rippenzylinder fuer eine luftgekuehlte hubkolbenmaschine
DE2729230A1 (de) * 1977-06-29 1979-01-11 Daimler Benz Ag Brennkraftmaschine
DE2752633A1 (de) * 1977-11-25 1979-05-31 Kloeckner Humboldt Deutz Ag Zylinder fuer eine hubkolbenbrennkraftmaschine
FR2410141A1 (fr) * 1977-11-25 1979-06-22 Kloeckner Humboldt Deutz Ag Cylindre de moteur a combustion interne a pistons alternatifs
DE2937788A1 (de) * 1979-09-19 1981-04-02 Klöckner-Humboldt-Deutz AG, 5000 Köln Leichtmetallzylinderkopf fuer brennkraftmaschinen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0105108A1 (fr) * 1982-09-30 1984-04-11 Klöckner-Humboldt-Deutz Aktiengesellschaft Moteur à combustion interne alternatif

Also Published As

Publication number Publication date
DE3031926A1 (de) 1982-04-01
EP0046505B1 (fr) 1984-03-14
US4462343A (en) 1984-07-31
DE3162657D1 (en) 1984-04-19
ATE6685T1 (de) 1984-03-15

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