Scotch yoke engine

Details Scotch yoke engine Scotch yoke engine

F - Mech Eng,Light,Heat,Weapons

02

B

F02B 75/32 (2006.01) F01B 9/02 (2006.01) F02F 3/28 (2006.01) F16H 21/36 (2006.01) F16J 1/01 (2006.01)

Patent

CA 2445470

The invention relates to a scotch yoke fluid device (10). The scotch yoke fluid device (10) has a crank (11) with a big end having an axis (14) which orbits around a main axis (15) for the crank (11). Connecting means (13) are mounted on the big end axis (14). There is at least one piston (22) mounted for reciprocating motion in a cylinder (18) along a piston axis. The piston has a cross-sectional area perpendicular to the piston axis. The piston also has guide means (16) which include a linear surface transverse to the piston axis. The guide means (16) engage engagement means on the connecting means. There is at least one restricting means (24) for constraining the piston (22) to move along the piston axis. The restricting means (24), or a constraining means (19) for the restricting means (24), or both, always extend into a volume defined by the swept area of the crank (11), projected along the main axis (15) of the crank (11). The invention also provides components, such as pistons, piston rods, restraining means and constraining means, made of composite fibre. The composite fibre may include both aligned and non-aligned material. The invention also relates to methods of manufacturing such components.

L'invention concerne un dispositif fluidique à excentrique Scotch (10). Ce dispositif fluidique à excentrique Scotch (10) comprend une manivelle (11) munie d'une tête de bielle présentant un axe (14) tournant autour d'un axe principal (15) de la manivelle (11). Un organe de liaison (13) est monté sur l'axe (14) de la tête de bielle. Au moins un piston (22) est monté en vue d'un mouvement alternatif dans un cylindre sur un axe de piston. Ce piston comprend une zone de section transversale perpendiculaire à l'axe de piston, ainsi qu'un organe de guidage (16) doté d'une surface linéaire transversale par rapport à l'axe de piston. Ledit organe de guidage (16) peut entrer en prise avec un organe de prise sur l'organe de liaison. En outre, au moins un organe de limitation permet de maintenir mouvement du piston sur l'axe de piston. L'organe de limitation (24) ou un organe de contrainte (19) destiné à cet organe de limitation (24), voire les deux, se prolonge toujours dans un volume défini par la surface balayée de la manivelle (11), d'où une avancée sur l'axe principal (15) de cette manivelle (11). L'invention concerne également des composants tels que des pistons, des tiges de piston, des organes de retenue et des organes de contrainte constitués d'une fibre composite pouvant comprendre une matière alignée et non alignée. L'invention concerne en outre des procédés de fabrication de ces composants.

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