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1. WO2000043655 - FOUR-STROKE INTERNAL COMBUSTION ENGINE

Publication Number WO/2000/043655
Publication Date 27.07.2000
International Application No. PCT/US2000/000841
International Filing Date 13.01.2000
Chapter 2 Demand Filed 14.08.2000
IPC
F01M 1/04 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL-COMBUSTION ENGINES; CRANKCASE VENTILATING
1Pressure lubrication
04using pressure in working cylinder or crankcase to operate lubricant-feeding devices
F01M 3/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL-COMBUSTION ENGINES; CRANKCASE VENTILATING
3Lubrication specially adapted for engines with crankcase compression of fuel-air mixture, or for other engines in which lubricant is contained in fuel, combustion air, or fuel-air mixture
F01M 11/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL-COMBUSTION ENGINES; CRANKCASE VENTILATING
11Component parts, details, or accessories, not provided for in, or of interest apart from, groups F01M1/-F01M9/149
F01M 11/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL-COMBUSTION ENGINES; CRANKCASE VENTILATING
11Component parts, details, or accessories, not provided for in, or of interest apart from, groups F01M1/-F01M9/149
06Means for keeping lubricant level constant or for accommodating movement or position of machines or engines
F01M 13/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL-COMBUSTION ENGINES; CRANKCASE VENTILATING
13Crankcase ventilating or breathing
02by means of additional source of positive or negative pressure
F01M 13/04 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL-COMBUSTION ENGINES; CRANKCASE VENTILATING
13Crankcase ventilating or breathing
04having means for purifying air before leaving crankcase, e.g. removing oil
CPC
F01L 1/024
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
1Valve-gear or valve arrangements, e.g. lift-valve gear
02Valve drive
024Belt drive
F01M 1/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
1Pressure lubrication
04using pressure in working cylinder or crankcase to operate lubricant feeding devices
F01M 11/0004
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
11Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
0004Oilsumps
F01M 11/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
11Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
06Means for keeping lubricant level constant or for accommodating movement or position of machines or engines
F01M 11/064
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
11Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
06Means for keeping lubricant level constant or for accommodating movement or position of machines or engines
062Accommodating movement or position of machines or engines, e.g. dry sumps
064Movement
F01M 11/065
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
11Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
06Means for keeping lubricant level constant or for accommodating movement or position of machines or engines
062Accommodating movement or position of machines or engines, e.g. dry sumps
065Position
Applicants
  • BRIGGS & STRATTON CORPORATION [US/US]; 12301 West Wirth Street Wauwatosa, WI 53222, US (AllExceptUS)
  • HIRSCH, Nicholas, Robert [US/US]; US (UsOnly)
  • SCHAEFER, Mark, Donald [US/US]; US (UsOnly)
  • BRAUN, Michael, Paul [US/US]; US (UsOnly)
  • HOTZ, Peter [US/US]; US (UsOnly)
  • WIATROWSKI, Darrell, Albert [US/US]; US (UsOnly)
  • BARTELT, Ronald, Lee [US/US]; US (UsOnly)
  • HUBBARD, Brian [US/US]; US (UsOnly)
Inventors
  • HIRSCH, Nicholas, Robert; US
  • SCHAEFER, Mark, Donald; US
  • BRAUN, Michael, Paul; US
  • HOTZ, Peter; US
  • WIATROWSKI, Darrell, Albert; US
  • BARTELT, Ronald, Lee; US
  • HUBBARD, Brian; US
Agents
  • LASKA, Casimir, F.; Michael Best & Friedrich LLP 100 East Wisconsin Avenue Milwaukee, WI 53202, US
  • WOLF E. Sajda; Patent Attorney Meisner, Bolte & Partner P. O. Box 86 06 24 D-81633 Munich, DE
Priority Data
60/117,21525.01.1999US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) FOUR-STROKE INTERNAL COMBUSTION ENGINE
(FR) MOTEUR A COMBUSTION INTERNE A QUATRE TEMPS
Abstract
(EN)
A four-stroke internal combustion engine (20) is provided. There is provided within an engine housing (28) an oil reservoir (126) and a valve chamber (156) which independently communicate with a crank chamber (124). A strategically placed divider (116) and passageway, located within the engine housing (28), appropriately direct lubricant within the engine housing (28) so that the internal cavity of the engine is lubricated during use in various operating attitudes, and so that the fluid flows to and is held in the proper chambers of the engine housing during storage. There is also provided a breather arrangement for an internal combustion engine (20) which includes a cam shaft (98) having a hollow passageway in communication with the crank chamber (124) and the air intake system of the engine. There is also provided an engine housing which can be utilized for engines having different horse power ratings. There is also provided a crankshaft bearing assembly (68, 70) which prevents damage to the bearing upon insertion of the crankshaft (80) into the crank chamber (124).
(FR)
l'invention concerne un moteur (20) à combustion interne à quatre temps. Ce moteur comprend un bloc moteur (28) un carter d'huile (126) et un logement de soupapes (156) qui communique de façon indépendante avec un carter du moteur (124). Une chicane (116 ) stratégiquement placée et un passage, situés dans le corps de moteur (28), canalisent de façon appropriée l'huile de graissage dans le corps de moteur (28) de sorte que la cavité intérieure du moteur est lubrifiée dans diverses positions, et de sorte qu'elle s'écoule et soit retenue dans les chambres du corps du moteur appropriées pendant l'arrêt. L'invention concerne aussi un reniflard pour moteur (20) à combustion interne qui comprend un arbre à cames (98) possédant un passage creux en liaison avec le carter du moteur (124) et avec le système d'admission du moteur. L'invention concerne encore un bloc moteur qui peut être utilisé pour des moteurs de puissances différentes. Enfin, l'invention concerne un ensemble palier de vilebrequin (68, 70) qui ne risque pas d'être endommagé lors de l'insertion du vilebrequin (80) dans le carter du moteur.
Latest bibliographic data on file with the International Bureau