Internal combustion engine

Details Internal combustion engine Internal combustion engine

F - Mech Eng,Light,Heat,Weapons

02

B

F02B 33/04 (2006.01) F01B 9/02 (2006.01) F01B 9/04 (2006.01) F02B 21/02 (2006.01) F02B 29/00 (2006.01) F02B 33/26 (2006.01) F02B 33/30 (2006.01) F02B 33/44 (2006.01) F02B 75/22 (2006.01) F02B 75/32 (2006.01)

Patent

CA 2434080

The invention has many aspects. One aspect is that of an internal combustion engine (8010) that has a piston (8020) within a cylinder (8022) and has a crankcase (8012), defining a combustion chamber (8024) and crank volume (8026). A passageway (8032 and 8034) links the combustion chamber (8024) and the crank volume (8026). There is provided valve means (8038) for selectively closing the linking passageway and valve means (8030) for selectively closing and inlet to the crank volume (8026). In another aspect, there is an improvement to a scotch yoke fluid device. A displaceable member for relieving pressure in a variable volume chamber in the cylinder where combustion is occurring is provided. The invention includes a method of varying power output of a scotch yoke device, by choosing cylinder angle, pin angle and firing order in various ways. The invention also deals with other aspects of scotch yoke designs.

L'invention porte sur plusieurs aspects, dont l'un concerne un moteur à combustion interne (8010) comprenant un piston (8020) logé dans un cylindre (8022), un carter (8012) définissant une chambre de combustion (8024) et un volume de carter (8026), un passage (8032 et 8034) reliant la chambre de combustion (8024) et le volume du carter (8026), des moyens de soupape (8038) destinés à fermer de manière sélective le passage de liaison, ainsi que d'autres moyens de soupape (8030) destinés à fermer de manière sélective un orifice d'admission dans le volume du carter (8026). Dans un autre aspect, l'invention concerne une amélioration portant sur un dispositif à fluide, de type scotch yoke (à vis, écrou, bielle). Un élément mobile sert à relâcher la pression dans une chambre à volume variable du cylindre dans lequel la combustion se produit. L'invention concerne encore un procédé consistant à faire varier la sortie de puissance d'un dispositif scotch yoke, par sélection de plusieurs manières de l'angle du cylindre, de l'angle de l'axe de pied de bielle, et de l'ordre d'allumage des cylindres. L'invention concerne enfin d'autres aspects de la conception du dispositif scotch yoke.

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