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1. (WO1998049435) ROTARY PISTON MACHINE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/049435 International Application No.: PCT/NL1998/000223
Publication Date: 05.11.1998 International Filing Date: 21.04.1998
IPC:
F01C 1/10 (2006.01) ,F01C 19/04 (2006.01) ,F02B 53/00 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
C
ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
1
Rotary-piston machines or engines
08
of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
10
of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
C
ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
19
Sealing arrangements in rotary-piston machines or engines
02
Radially-movable sealings for working fluids
04
of rigid material
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
53
Internal-combustion aspects of rotary-piston or oscillating-piston engines
Applicants:
DE GEUS, Pieter, Adolf [NL/NL]; NL
Inventors:
DE GEUS, Pieter, Adolf; NL
Priority Data:
100590425.04.1997NL
Title (EN) ROTARY PISTON MACHINE
(FR) MOTEUR A PISTON ROTATIF
Abstract:
(EN) Rotary Piston Machine of the type that consists of an in cross section square inner area (1) with therein fitting a rotary piston which in cross section has the perimeter of a fluently closed curve of constant width with three axes of symmetry (37). In the square inner area the four angles are substituted by four cylindrical inner surfaces of more than 90 degrees (45), what means that a cross section of the square housing the continuous inner surfaces exposes with totally 8 discontinuities, (see fig.0), (46). The three ribs of the rotary piston are substituted by three around their longitudinal axis over an angle of 60 degrees rotatable sealing elements (40), each provided with a levelling (44) over the full length. On rotating the rotary piston the sealing elements can pass through the said discontinuities fluently. Centrifugal forces pushing outwards the sealing elements will be neutralized by special links (34/35).
(FR) Moteur à piston rotatif comprenant un volume interne (1) à section carrée qui abrite un piston rotatif ayant pour périmètre, en coupe, une courbe fermée souple de largeur constante à trois axes de symétrie (37). Dans le volume interne carré, les quatre angles sont remplacés par quatre surfaces internes cylindriques de plus de 90° (45), ce qui signifie que la coupe du carré comportant les surfaces internes continues présente au total 8 discontinuités (voir fig. 0), (46). Les trois nervures du piston rotatif sont remplacées par trois éléments obturateurs (40). Chaque élément obturateur peut tourner d'un angle de 60° autour de son axe longitudinal et présente un aplanissement (44) sur toute sa longueur. Après rotation du piston, les éléments obturateurs peuvent traverser en souplesse lesdites discontinuités. Les forces centrifuges qui poussent les éléments obturateurs vers l'extérieur sont neutralisées par des biellettes spéciales (34, 35).
front page image
Designated States: JP, US
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: Dutch (NL)
Also published as:
EP0922158