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WO1987003930A1 - Internal combustion engine with one or several squeeze gaps between the pistons and cylinder head - Google Patents

Internal combustion engine with one or several squeeze gaps between the pistons and cylinder head Download PDF

Info

Publication number
WO1987003930A1
WO1987003930A1 PCT/EP1986/000726 EP8600726W WO8703930A1 WO 1987003930 A1 WO1987003930 A1 WO 1987003930A1 EP 8600726 W EP8600726 W EP 8600726W WO 8703930 A1 WO8703930 A1 WO 8703930A1
Authority
WO
WIPO (PCT)
Prior art keywords
combustion chamber
squeeze
cylinder head
gaps
pistons
Prior art date
Application number
PCT/EP1986/000726
Other languages
German (de)
French (fr)
Inventor
Paul August
Original Assignee
Glotur Trust Reg.
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 Glotur Trust Reg. filed Critical Glotur Trust Reg.
Publication of WO1987003930A1 publication Critical patent/WO1987003930A1/en

Links

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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

The internal combustion engine forms squeeze gaps (25) between the pistons (2) and the cylinder head (5) and is provided in addition with deflection means (4, 20) in the combustion chamber (8) which produce a rotary flow in the combustion chamber. The floor of the combustion chamber is formed by a trough-shaped cavity (22) in the floor of the piston so that a squeeze gap is formed extending over the entire width of the combustion chamber. In the region between the valves (6, 7) there extends a further, central squeeze gaps (26) which, in conjunction with the wall of the cylinder head lying thereover, forms a further squeeze gap flow (30) which reinforces the lateral squeeze gap flows (29). By this, the moment of ignition can be further advanced and the temperature peaks, as well as the NOx reduced. It is possible to ignite a very lean mixture having an air excess of 30% and over, and this also keeps the combustion temperature at a low value and hence the production of NOx is lower. The CO emission, as a result of the leaner mixture, is in any case smaller and the CH exceptionally low owing to the complete combustion due to rotation. Test results show a reduction in consumption of 15-20% compared with presently known motors.
PCT/EP1986/000726 1985-12-20 1986-12-08 Internal combustion engine with one or several squeeze gaps between the pistons and cylinder head WO1987003930A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3545504 1985-12-20
DEP3545504.7 1985-12-20
DE19863626757 DE3626757A1 (en) 1985-12-20 1986-08-07 INTERNAL COMBUSTION ENGINE WITH ONE OR SEVERAL CRUSH GAPS BETWEEN PISTON AND CYLINDER HEAD
DEP3626757.0 1986-08-07

Publications (1)

Publication Number Publication Date
WO1987003930A1 true WO1987003930A1 (en) 1987-07-02

Family

ID=25839192

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1986/000726 WO1987003930A1 (en) 1985-12-20 1986-12-08 Internal combustion engine with one or several squeeze gaps between the pistons and cylinder head

Country Status (4)

Country Link
EP (1) EP0250506A1 (en)
AU (1) AU6833087A (en)
DE (1) DE3626757A1 (en)
WO (1) WO1987003930A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3903842A1 (en) * 1988-02-10 1989-09-14 Toyota Motor Co Ltd OTTO INTERNAL COMBUSTION ENGINE WITH DIRECT FUEL INJECTION
EP0345436A1 (en) * 1988-06-07 1989-12-13 Glotur Trust Reg. Two-stroke double piston engine
DE3943816C2 (en) * 1988-02-10 2001-01-25 Toyota Motor Co Ltd Direct-injection Otto-cycle engine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0826772B2 (en) * 1988-02-26 1996-03-21 トヨタ自動車株式会社 Spark ignition cylinder injection engine

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1741355A (en) * 1928-02-11 1929-12-31 Jean A H Barkeij Internal-combustion engine
FR799128A (en) * 1935-03-04 1936-06-06 Improvements to internal combustion engine cylinder heads
US2800123A (en) * 1954-12-28 1957-07-23 Gen Motors Corp Combustion chamber
DE1913115A1 (en) * 1968-03-15 1969-10-02 Automobilove Zd Y Narodni Podn Combustion chamber for an overhead controlled four-stroke gasoline engine equipped with V-shaped valves
DE2548134A1 (en) * 1975-10-28 1977-05-12 Porsche Ag External ignition IC engine - has combustion chamber in cylinder head section
DE2751993A1 (en) * 1977-11-22 1979-05-23 August Paul Dipl Ing Dr H C IC engine providing squish combustion space - has inclined deflector surfaces on piston and cylinder head to define narrow ignition gap
US4300499A (en) * 1978-07-20 1981-11-17 Toyota Jidosha Kogyo Kabushiki Kaisha Combustion chamber of an internal combustion engine
DE3138328A1 (en) * 1981-09-25 1983-04-14 August, Paul, Dipl.-Ing. Dr.h.c., Barcelona Improvement of the mixture formation for internal combustion engines
GB2113762A (en) * 1982-01-25 1983-08-10 Fuji Heavy Ind Ltd I.C. engine combustion chamber

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1184314A (en) * 1957-10-14 1959-07-20 Internal combustion engine with piston and cylinder head with curved surfaces
US3766900A (en) * 1971-06-22 1973-10-23 G Aiti Combustion chamber for interval combustion engines
DE2731086C3 (en) * 1977-07-09 1980-10-16 Bayerische Motoren Werke Ag, 8000 Muenchen Mixture-compressing internal combustion engine, in particular externally ignited four-stroke internal combustion engine
IT1118641B (en) * 1979-05-22 1986-03-03 Fiat Ricerche INTERNAL COMBUSTION ENGINE WITH COMMAND IGNITION AND PETROL INJECTION IN THE CYLINDER

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1741355A (en) * 1928-02-11 1929-12-31 Jean A H Barkeij Internal-combustion engine
FR799128A (en) * 1935-03-04 1936-06-06 Improvements to internal combustion engine cylinder heads
US2800123A (en) * 1954-12-28 1957-07-23 Gen Motors Corp Combustion chamber
DE1913115A1 (en) * 1968-03-15 1969-10-02 Automobilove Zd Y Narodni Podn Combustion chamber for an overhead controlled four-stroke gasoline engine equipped with V-shaped valves
DE2548134A1 (en) * 1975-10-28 1977-05-12 Porsche Ag External ignition IC engine - has combustion chamber in cylinder head section
DE2751993A1 (en) * 1977-11-22 1979-05-23 August Paul Dipl Ing Dr H C IC engine providing squish combustion space - has inclined deflector surfaces on piston and cylinder head to define narrow ignition gap
US4300499A (en) * 1978-07-20 1981-11-17 Toyota Jidosha Kogyo Kabushiki Kaisha Combustion chamber of an internal combustion engine
DE3138328A1 (en) * 1981-09-25 1983-04-14 August, Paul, Dipl.-Ing. Dr.h.c., Barcelona Improvement of the mixture formation for internal combustion engines
GB2113762A (en) * 1982-01-25 1983-08-10 Fuji Heavy Ind Ltd I.C. engine combustion chamber

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3903842A1 (en) * 1988-02-10 1989-09-14 Toyota Motor Co Ltd OTTO INTERNAL COMBUSTION ENGINE WITH DIRECT FUEL INJECTION
DE3903842C2 (en) * 1988-02-10 1998-12-10 Toyota Motor Co Ltd Otto engine with direct fuel injection
DE3943816C2 (en) * 1988-02-10 2001-01-25 Toyota Motor Co Ltd Direct-injection Otto-cycle engine
EP0345436A1 (en) * 1988-06-07 1989-12-13 Glotur Trust Reg. Two-stroke double piston engine

Also Published As

Publication number Publication date
AU6833087A (en) 1987-07-15
EP0250506A1 (en) 1988-01-07
DE3626757A1 (en) 1987-06-25

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