Crankcase for an internal combustion engine

F - Mech Eng,Light,Heat,Weapons – 01 – M

Patent

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Details

F01M 13/04 (2006.01) F01M 11/02 (2006.01) F02B 75/22 (2006.01)

Patent

CA 2660241

A crankcase (100) for an engine includes a first bank (102) of cylinders that has a plurality of cylinder bores (104) formed therein, and a second bank (102) of cylinders that includes an additional plurality of cylinder bores (104). The second bank (102) is at an angle with respect to the first bank (102). A valley structure (106) is located between the first bank (102) and the second bank (102). A gallery (122) is located between the first bank (102), the second bank (102), and the valley structure (106). The gallery (122) has at least one rear opening (118) that fluidly connects the gallery (102) to a rear portion (120) of the crankcase. At least one front opening (210) fluidly connects the gallery (122) to a front portion (116) of the crankcase (100). At least one breather opening (124) fluidly connects the gallery (122) to an outer valley surface (107).

L'invention concerne un carter de moteur (100) pour un moteur, comprenant un premier banc (102) de cylindres présentant une pluralité d'alésages de cylindre (104) formés dans celui-ci, et un deuxième banc (102) de cylindres présentant une pluralité supplémentaire d'alésages de cylindre (104). Le deuxième banc (102) est incliné par rapport au premier banc (102). Une structure de vallée (106) est située entre le premier banc (102) et le deuxième banc (102). Une galerie (122) est située entre le premier banc (102), le deuxième banc (102) et la structure de vallée (106). La galerie (122) comporte au moins une ouverture arrière (118) qui connecte fluidiquement la galerie (122) à une partie arrière (120) du carter de moteur. Au moins une partie avant (210) connecte fluidiquement la galerie (122) à une partie avant (116) du carter de moteur (100). Au moins un orifice de reniflard (124) connecte fluidiquement la galerie (122) à une surface de vallée extérieure (107).

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