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1. WO1996006272 - AN ASSEMBLY AND METHOD OF USING A MULTI-PART PISTON WITH A REMOVABLE HEAD

Publication Number WO/1996/006272
Publication Date 29.02.1996
International Application No. PCT/US1994/009333
International Filing Date 19.08.1994
IPC
F02F 3/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
FCYLINDERS, PISTONS, OR CASINGS FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
3Pistons
F16J 1/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
JPISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
1Pistons; Trunk pistons; Plungers
CPC
F02F 3/0023
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
3Pistons
0015Multi-part pistons
0023the parts being bolted or screwed together
F05C 2201/021
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
CINDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
2201Metals
02Light metals
021Aluminium
F16J 1/005
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
JPISTONS
1Pistons; Trunk pistons; Plungers
005obtained by assembling several pieces
Applicants
  • TUOHY, Matthew, J. [US/US]; US
Inventors
  • TUOHY, Matthew, J.; US
Agents
  • WOOLSTON, Robert, G. ; Seed and Berry 6300 Columbia Center 701 5th Avenue Seattle, WA 98104-7092, US
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) AN ASSEMBLY AND METHOD OF USING A MULTI-PART PISTON WITH A REMOVABLE HEAD
(FR) ENSEMBLE ET PROCEDE D'UTILISATION D'UN PISTON A COMPOSANTS MULTIPLES AVEC UNE TETE AMOVIBLE
Abstract
(EN)
A multi-part piston assembly (10) for an internal-combustion engine having at least one cylinder. The assembly has a skirt (16) with a threaded member connected thereto, the skirt being adapted to fit into the cylinder for reciprocal movement, and has a removable piston head (12) that has a threaded bore therein (19) adapted to receive the skirt's threaded member (21) removably attaching the piston head (12) to the skirt (16). The removable piston head (12) has rings (24, 26, 28) mounted thereon and is adapted to fit into the cylinder for reciprocation with the skirt. A lock screw (20) locks the piston head to the skirt when the piston head and skirt are attached for use.
(FR)
Un ensemble à piston (10) à composants multiples est destiné à un moteur à combustion interne ayant au moins un cylindre. L'ensemble possède une jupe (16) à laquelle est relié un élément fileté, la jupe étant conçue pour s'adapter dans le cylindre et avoir un mouvement de va-et-vient, l'ensemble ayant une tête (12) de piston amovible pourvu d'un alésage fileté (19) qui reçoit l'élément fileté (21) de la jupe afin de fixer la tête de piston (12) à la jupe (16). La tête amovible (12) possède des segments (24, 26, 28) et s'adapte à l'intérieur du cylindre avec un mouvement de va-et-vient avec la jupe. Une vis de verrouillage (20) verrouille la tête de piston sur la jupe lorsque la tête de piston et la jupe sont fixées et prêtes à l'usage.
Also published as
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