US3691914A - Reciprocating piston internal combustion engine with a cylinder housing and cylinder head consisting of a single block - Google Patents

Reciprocating piston internal combustion engine with a cylinder housing and cylinder head consisting of a single block Download PDF

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Publication number
US3691914A
US3691914A US56783A US3691914DA US3691914A US 3691914 A US3691914 A US 3691914A US 56783 A US56783 A US 56783A US 3691914D A US3691914D A US 3691914DA US 3691914 A US3691914 A US 3691914A
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US
United States
Prior art keywords
cylinder
wall
internal combustion
combustion engine
cylinder head
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.)
Expired - Lifetime
Application number
US56783A
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English (en)
Inventor
Josef Reisacher
Albrecht Schmid
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Daimler Benz AG
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Daimler Benz AG
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Filing date
Publication date
Application filed by Daimler Benz AG filed Critical Daimler Benz AG
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Publication of US3691914A publication Critical patent/US3691914A/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • F02F1/10—Cylinders; Cylinder heads  having cooling means for liquid cooling
    • 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 
    • F02F1/002—Integrally formed cylinders and cylinder heads
    • 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
    • F02F7/00—Casings, e.g. crankcases
    • F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
    • F02F7/007—Adaptations for cooling

Definitions

  • the present invention relates to a reciprocating piston internal combustion engine with a cylinder housing and cylinder head consisting of one single block, whereby the block extends over all cylinders of a cylinder row and whereby the cylinder housing essentially consists of an inner wall which, together with a cylinder head bottom, delimits the cylinder space, and of an outer wall separated from the inner wall by a cooling space.
  • the present invention is concerned with the task to so support and reinforce the transition between the cylinder head bottom and the inner wall that the danger of cracks within this area is eliminated or at least considerably reduced.
  • the underlying problems are solved according to the present invention in that the inner and the outer wall are connected with each other by a cross wall extending through the entire block and arranged approximately at the height of the cylinder head bottom.
  • the transition from the cylinder head bottom to the inner wall isfar-reachingly braced and relieved by the cross wall according to the present invention.
  • the cooling of the inner wall takes place uniformly over the entire circumference thereof so that only slight thermal stresses occur.
  • the present invention further entails the advantage that the cooling spaces in the cylinder housing and in the cylinder head are separated from one another so that two cooling medium flows result. It is thereby appropriate that the cooling medium flows at first through the cooling space between the inner and outer wall of the cylinder housing over the entire length of the block and thereafter-at the end thereof is conducted into the cooling spaces of the cylinder head.
  • Another object of the present invention resides in intemal combustion engines with a cylinder housing and cylinder head made of one block, in which the danger of crack formation within the transition from cylinder head bottom to inner wall of the cylinder housing is farreachingly eliminated.
  • a further object of the present invention resides in a reciprocating piston internal combustion engine of the type described above, in which uniform cooling and minimization of thermal stresses is achieved by simple means.
  • FIG. 1 is a partial longitudinal cross-sectional view through a multi-cylinder reciprocating piston internal combustion engine of in-line construction in accordance with the present invention.
  • FIG. 2 is a partial horizontal section taken along line lI-II of FIG. 1.
  • the cylinder housing is generally designated by reference numeral 1 and the cylinder head by reference numeral 2 which are made in one single block that extends over all of the cylinders of the cylinder row.
  • the separating surface with respect to the crank case (not shown) is designated by reference numeral 3.
  • the cylinder housing 1 essentially consists of an inner wall 5 coordinated to each cylinder space 4 and of an outer wall 6 surrounding the inner wall 5 whereby a cooling space 7 is disposed between the inner wall 5 and the outer wall 6.
  • An inlet channel 8 and an outlet channel 9, the mounting bore 10 of an ignition source (not shown), guide means 11 and 12 for inlet and exhaust valves (not shown) as well as a cooling space 13 are arranged in the cylinder head 2.
  • the termination of the cylinder head 2 with respect to the cylinder space 4 is formed by a cylinder head bottom 14.
  • a notch place 15 exists in the transition between the cylinder head bottom 14 and the inner wall 5 conditioned on manufacturing reasons, from which incipient cracks can readily form.
  • the inner wall 5 and the outer wall 6 are connected with each other within the area of the transition between the cylinder head bottom 14 and the inner wall 5 by a cross wall 16.
  • the cross wall 16 extends over the entire block so, that the cooling spaces 7 and 13 are completely separated from one another.
  • a separate cooling medium conduction for the cylinder housing 1 and for the cylinder head results therefrom, for example, in such a manner that the cooling medium after flowing through the cooling space 7, is conducted at one end of the block into the cooling space 13.
  • a reciprocating piston internal combustion engine comprising a cylinder housing and a cylinder head consisting of one block, the cylinder housing essentially consisting of an inner walland an outer wall, said inner wall and a cylinder head bottom delimiting at least one cylinder space, said outer wall being separated from the inner wall by a cooling space, said inner and said outer wall being connected with each other by a cross wall constructed one-piece with the cylinder housing and head structure and arranged approximately at the height of the cylinder head bottom, said cross wall extending over the entire block for separating the cooling spaces of the cylinder housing from the cooling spaces of the cylinder head, said cross wall being substantially thicker than each of the respective inner and outer walls whereby the cross wall provides reinforcing support to the upper ends of said inner and outer walls.
  • An internal combustion engine characterized in that an internal groove is provided in said cross wall immediately adjacent the upper ends of the inner surface of said inner wall for providing clearance to machining tools used in machining the inner surface of said inner wall.
  • An internal combustion engine characterized in that an inlet and an outlet guide aperture is provided in said cylinder head for each cylinder space, and in that a connecting wall between said inlet 'and outlet guide apertures extends downwardly to approximately the plane of the upper extent of said annular groove.
  • An internal combustion engine characterized in that the cooling spaces of the cylinder head and of the cylinder housing are connected with each other only at one end of the cylinder housing.
  • connection between the cooling spaces is made in such a manner that the cooling medium first flows through the cooling spaces of the cylinder housing and thereafter is conducted into the cooling spaces of the cylinder head.
  • An internal combustion engine characterized in that the engine includes a plurality of cylinders and in that the block extends over all cylinders of a cylinder row.
  • connection between the cooling spaces is made in such a manner that the cooling medium first flows through the cooling spaces of the cylinder housing and thereafter is conducted into the cooling spaces of the cylinder head.

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  • 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)
US56783A 1969-07-26 1970-07-21 Reciprocating piston internal combustion engine with a cylinder housing and cylinder head consisting of a single block Expired - Lifetime US3691914A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691938134 DE1938134A1 (de) 1969-07-26 1969-07-26 Hubkolben-Brennkraftmaschine mit aus einem Block bestehendem Zylindergehaeuse und Zylinderkopf

Publications (1)

Publication Number Publication Date
US3691914A true US3691914A (en) 1972-09-19

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ID=5741045

Family Applications (1)

Application Number Title Priority Date Filing Date
US56783A Expired - Lifetime US3691914A (en) 1969-07-26 1970-07-21 Reciprocating piston internal combustion engine with a cylinder housing and cylinder head consisting of a single block

Country Status (5)

Country Link
US (1) US3691914A (enrdf_load_stackoverflow)
JP (1) JPS4919722B1 (enrdf_load_stackoverflow)
DE (1) DE1938134A1 (enrdf_load_stackoverflow)
FR (1) FR2055621A5 (enrdf_load_stackoverflow)
GB (1) GB1307723A (enrdf_load_stackoverflow)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897770A (en) * 1972-10-13 1975-08-05 Kloeckner Humboldt Deutz Ag Water-cooled reciprocable piston engine with a single piece integral cylinder and cylinder head
DE2508952A1 (de) * 1975-03-01 1976-10-21 Daimler Benz Ag Aus zylinderblock und zylinderkopf bestehendes zylindergehaeuse fuer eine vierzylinder-brennkraftmaschine
US4092956A (en) * 1975-09-04 1978-06-06 Hans List Water cooled internal combustion engine, particularly a diesel engine
US4230087A (en) * 1977-11-17 1980-10-28 Nissan Motor Company, Limited Low-noise-level internal combustion engine
US4294203A (en) * 1979-09-10 1981-10-13 Cummins Engine Company, Inc. Internal combustion engine with integral upper cylinder section and head
US4365594A (en) * 1979-08-28 1982-12-28 Hans List Water-cooled, multi-cylinder internal combustion engine
US4554892A (en) * 1983-06-21 1985-11-26 Yanmar Diesel Engine Co., Ltd. Water-cooled diesel engine for use as outboard engine
US4699100A (en) * 1985-12-23 1987-10-13 Ford Motor Company Chamber construction for internal combustion engine
US4708105A (en) * 1985-12-23 1987-11-24 Ford Motor Company Chamber construction for internal combustion engine
US5143033A (en) * 1991-04-16 1992-09-01 Briggs & Stratton Corp. Internal combustion engine having an integral cylinder head
US5404846A (en) * 1994-04-29 1995-04-11 Outboard Marine Corporation Four stroke one-piece engine block construction
US5755194A (en) * 1995-07-06 1998-05-26 Tecumseh Products Company Overhead cam engine with dry sump lubrication system
US6223713B1 (en) 1996-07-01 2001-05-01 Tecumseh Products Company Overhead cam engine with cast-in valve seats
WO2001069068A1 (en) * 2000-03-15 2001-09-20 Maxsym Engine Technology Limited A method of manufacturing a monobloc
US6334412B1 (en) * 2000-08-30 2002-01-01 Toyota Jidosha Kabushiki Kaisha Mono-block cylinder head structure of water cooled engine
US20150267812A1 (en) * 2014-03-21 2015-09-24 Goodrich Corporation Piston housing system and apparatus
US20160273478A1 (en) * 2013-12-10 2016-09-22 Steyr Motors Gmbh Engine block of a diesel engine with integrated cylinder head, and casting method
US20170152787A1 (en) * 2014-06-30 2017-06-01 Nissan Motor Co., Ltd. Internal combustion engine
US20170159541A1 (en) * 2014-06-30 2017-06-08 Nissan Motor Co., Ltd. Internal combustion engine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT376018B (de) * 1975-09-04 1984-10-10 List Hans Wassergekuehlte brennkraftmaschine
FR2464375B1 (fr) * 1979-08-28 1985-09-27 List Hans Moteur a combustion interne a plusieurs cylindres, refroidi a l'eau
KR830009360A (ko) * 1981-02-27 1983-12-19 에르스베트 루드빅 왕복동 피스톤식 내연기관용의 케이싱 블록
DE3721658A1 (de) * 1987-07-01 1989-01-12 Schierholz Kg Louis Laufschienenanordnung eines haengefoerdersystems
AT513038B1 (de) * 2012-10-08 2014-01-15 Steyr Motors Gmbh Motorblock eines Dieselmotors mit integriertem Zylinderkopf und Gießverfahren

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2175448A (en) * 1936-01-07 1939-10-10 Schlagintweit Hermann Engine cooling system
US2700964A (en) * 1948-10-01 1955-02-01 Friedrich K H Nallinger Housing of internal-combustion engines
US3203408A (en) * 1964-01-06 1965-08-31 Winkelman Henry William Liquid cooling system for internal combustion engines
US3351044A (en) * 1964-04-10 1967-11-07 British Aluminium Co Ltd Internal combustion engines
US3385273A (en) * 1965-09-10 1968-05-28 White Motor Corp Cooling system for internal combustion engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2175448A (en) * 1936-01-07 1939-10-10 Schlagintweit Hermann Engine cooling system
US2700964A (en) * 1948-10-01 1955-02-01 Friedrich K H Nallinger Housing of internal-combustion engines
US3203408A (en) * 1964-01-06 1965-08-31 Winkelman Henry William Liquid cooling system for internal combustion engines
US3351044A (en) * 1964-04-10 1967-11-07 British Aluminium Co Ltd Internal combustion engines
US3385273A (en) * 1965-09-10 1968-05-28 White Motor Corp Cooling system for internal combustion engine

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897770A (en) * 1972-10-13 1975-08-05 Kloeckner Humboldt Deutz Ag Water-cooled reciprocable piston engine with a single piece integral cylinder and cylinder head
DE2508952A1 (de) * 1975-03-01 1976-10-21 Daimler Benz Ag Aus zylinderblock und zylinderkopf bestehendes zylindergehaeuse fuer eine vierzylinder-brennkraftmaschine
US4092956A (en) * 1975-09-04 1978-06-06 Hans List Water cooled internal combustion engine, particularly a diesel engine
US4230087A (en) * 1977-11-17 1980-10-28 Nissan Motor Company, Limited Low-noise-level internal combustion engine
US4365594A (en) * 1979-08-28 1982-12-28 Hans List Water-cooled, multi-cylinder internal combustion engine
US4294203A (en) * 1979-09-10 1981-10-13 Cummins Engine Company, Inc. Internal combustion engine with integral upper cylinder section and head
US4554892A (en) * 1983-06-21 1985-11-26 Yanmar Diesel Engine Co., Ltd. Water-cooled diesel engine for use as outboard engine
US4699100A (en) * 1985-12-23 1987-10-13 Ford Motor Company Chamber construction for internal combustion engine
US4708105A (en) * 1985-12-23 1987-11-24 Ford Motor Company Chamber construction for internal combustion engine
US5143033A (en) * 1991-04-16 1992-09-01 Briggs & Stratton Corp. Internal combustion engine having an integral cylinder head
US5404846A (en) * 1994-04-29 1995-04-11 Outboard Marine Corporation Four stroke one-piece engine block construction
US5979392A (en) * 1995-07-06 1999-11-09 Tecumseh Products Company Overhead cam engine with integral head
US5988135A (en) * 1995-07-06 1999-11-23 Tecumseh Products Company Overhead vertical camshaft engine with external camshaft drive
US6032635A (en) * 1995-07-06 2000-03-07 Tecumseh Products Company Overhead cam engine with integral head
US5755194A (en) * 1995-07-06 1998-05-26 Tecumseh Products Company Overhead cam engine with dry sump lubrication system
US6223713B1 (en) 1996-07-01 2001-05-01 Tecumseh Products Company Overhead cam engine with cast-in valve seats
WO2001069068A1 (en) * 2000-03-15 2001-09-20 Maxsym Engine Technology Limited A method of manufacturing a monobloc
US6334412B1 (en) * 2000-08-30 2002-01-01 Toyota Jidosha Kabushiki Kaisha Mono-block cylinder head structure of water cooled engine
US9957914B2 (en) * 2013-12-10 2018-05-01 Steyr Motors Gmbh Engine block of a diesel engine with integrated cylinder head, and casting method
US20160273478A1 (en) * 2013-12-10 2016-09-22 Steyr Motors Gmbh Engine block of a diesel engine with integrated cylinder head, and casting method
US20150267812A1 (en) * 2014-03-21 2015-09-24 Goodrich Corporation Piston housing system and apparatus
US9958068B2 (en) * 2014-03-21 2018-05-01 Goodrich Corporation Piston housing system and apparatus
US20170159541A1 (en) * 2014-06-30 2017-06-08 Nissan Motor Co., Ltd. Internal combustion engine
US20170152787A1 (en) * 2014-06-30 2017-06-01 Nissan Motor Co., Ltd. Internal combustion engine
US10138797B2 (en) * 2014-06-30 2018-11-27 Nissan Motor Co., Ltd. Internal combustion engine

Also Published As

Publication number Publication date
GB1307723A (en) 1973-02-21
DE1938134A1 (de) 1971-01-28
JPS4919722B1 (enrdf_load_stackoverflow) 1974-05-20
FR2055621A5 (enrdf_load_stackoverflow) 1971-05-07

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