ATE281587T1 - FOUR-STROKE ENGINE - Google Patents

FOUR-STROKE ENGINE

Info

Publication number
ATE281587T1
ATE281587T1 AT01121944T AT01121944T ATE281587T1 AT E281587 T1 ATE281587 T1 AT E281587T1 AT 01121944 T AT01121944 T AT 01121944T AT 01121944 T AT01121944 T AT 01121944T AT E281587 T1 ATE281587 T1 AT E281587T1
Authority
AT
Austria
Prior art keywords
pair
combustion chamber
virtual plane
valve ports
ignition plugs
Prior art date
Application number
AT01121944T
Other languages
German (de)
Inventor
Kazuto Fukuzawa
Makoto Sanada
Minoru Matsuda
Original Assignee
Honda 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Application granted granted Critical
Publication of ATE281587T1 publication Critical patent/ATE281587T1/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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/24—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type
    • F02B75/243—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type with only one crankshaft of the "boxer" type, e.g. all connecting rods attached to separate crankshaft bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/026—Gear drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F01L1/143—Tappets; Push rods for use with overhead camshafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F01L1/146—Push-rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • 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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
    • F01M2011/031—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means characterised by mounting means
    • F01M2011/035—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means characterised by mounting means comprising oil pumps
    • 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
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle 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
    • 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
    • F02B2275/34—Lateral camshaft position
    • 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
    • F02F1/242—Arrangement of spark plugs or injectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

The invention provides a four-cycle engine, in which a pair of intake valve ports openable/closable by respective intake valves and a pair of exhaust valve ports openable/closable by respective exhaust valves are provided in a cylinder head in such a manner as to be positioned on both sides of a first virtual plane containing the axial line of a cylinder bore and passing through an approximately central portion of a combustion chamber, and a pair of ignition plugs are mounted in the cylinder head, characterized by minimizing the degradation of a flame propagation condition even if there occurs accidental fire in either of both the ignition plugs. A pair of ignition plugs (80), which are disposed substantially symmetrically with respect to a second virtual plane (79) passing through the center of a combustion chamber (17R) and being perpendicular to a first virtual plane(78), are mounted in a cylinder head (15R) in such a manner as to have axial lines extending substantially in parallel to the first virtual plane(78) and to be tilted with a distance therebetween becoming smaller toward the combustion chamber (17R); and end portions, projecting in the combustion chamber (17R), of the ignition plugs (80) are disposed in a region surrounded by intake valve ports (76) and exhaust valve ports (77). <IMAGE>
AT01121944T 2000-11-16 2001-09-12 FOUR-STROKE ENGINE ATE281587T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000349951 2000-11-16

Publications (1)

Publication Number Publication Date
ATE281587T1 true ATE281587T1 (en) 2004-11-15

Family

ID=18823269

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01121944T ATE281587T1 (en) 2000-11-16 2001-09-12 FOUR-STROKE ENGINE

Country Status (4)

Country Link
EP (1) EP1207275B1 (en)
AT (1) ATE281587T1 (en)
CA (1) CA2360045C (en)
DE (1) DE60106846T2 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR94585E (en) * 1967-07-19 1969-09-12 Andre Citroen Camshaft distribution for engine cylinder head.
JPS54129206A (en) * 1978-03-28 1979-10-06 Honda Motor Co Ltd Internal combustion engine
JPS5641419A (en) * 1979-09-10 1981-04-18 Honda Motor Co Ltd Four-cycle internal combustion engine
JP2595719B2 (en) * 1989-06-26 1997-04-02 いすゞ自動車株式会社 OHC type valve train

Also Published As

Publication number Publication date
EP1207275A2 (en) 2002-05-22
EP1207275B1 (en) 2004-11-03
EP1207275A3 (en) 2003-06-25
CA2360045C (en) 2005-04-12
DE60106846T2 (en) 2005-03-24
DE60106846D1 (en) 2004-12-09
CA2360045A1 (en) 2002-05-16

Similar Documents

Publication Publication Date Title
SE0101596L (en) Two-stroke internal combustion engine
JP2000136712A (en) Valve idling mechanism attached internal combustion engine
US5009204A (en) Spark plug arrangement in an overhead camshaft engine
ATE281587T1 (en) FOUR-STROKE ENGINE
GB1575138A (en) Pre-combustion chamber internal combustion engines
JPS57183527A (en) Four-cycle engine
JP2554245B2 (en) Single-over headed cam type engine
DE3361124D1 (en) Cylinder head for a four-stroke internal-combustion engine
EP1452699B1 (en) Whirl-stop device for rocker arm shaft in valve mechanism of internal combustion engine
SE9502470L (en) Device at a cylinder head
JPS5896130A (en) Spark ignition type internal-combustion engine for motorcycle, etc.
DE69527425D1 (en) COMBUSTION CHAMBER SYSTEM WITH IMPROVED VALVE ARRANGEMENT
KR100230056B1 (en) Hole position of suction and exhaust valve of engine
JP4793871B2 (en) 4-cycle engine
ATE334306T1 (en) INTERNAL COMBUSTION ENGINE
SE0001464D0 (en) Engine body and cylinder for crankcase coil internal combustion engine
JP2007291979A (en) Ignition plug mounting structure of internal combustion engine
JP2548528B2 (en) 4-cycle internal combustion engine for motorcycles
JP3433089B2 (en) Overhead valve engine
JPH0579803B2 (en)
JPS61138823A (en) Four-valve type engine
JP2020007962A (en) Secondary air introduction device for internal combustion engine for saddle-riding type vehicle
JP2008075503A (en) Water-cooled engine
JPH07135066A (en) Ignition plug
JPH11229822A (en) Overhead valve engine

Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification

Ref document number: 1207275

Country of ref document: EP

REN Ceased due to non-payment of the annual fee