F - Mech Eng,Light,Heat,Weapons – 02 – D
Patent
F - Mech Eng,Light,Heat,Weapons
02
D
F02D 9/06 (2006.01) F01L 13/06 (2006.01) F02B 69/06 (2006.01) F02B 75/20 (2006.01) F02B 3/06 (2006.01) F02B 75/02 (2006.01) F02B 75/18 (2006.01)
Patent
CA 2211157
A method of engine compression braking for an internal combustion engine is disclosed wherein the engine is converted to a two-cycle mode for braking. Exhaust valves are opened in cylinders wherein associated pistons are near top dead center and substantially simultaneously, exhaust valves are opened in cylinders wherein associated pistons are nominally past bottom dead center. The method results in an advantageous braking power. The method results in an advantageous braking power increase due to back-filling of the cylinders wherein the pistons are nominally past bottom dead center. A similar method is disclosed for use during four-cycle braking.
Système de freinage par compression dans un moteur à combustion interne. Ce système permet de faire passer le moteur à un mode à deux temps pour le freinage. Des soupapes d'échappement s'ouvrent dans des cylindres où les pistons associés sont près du point mort haut; ces soupapes s'ouvrent presque simultanément dans des cylindres où les pistons associés sont essentiellement au-delà du point mort bas. La méthode assure une augmentation appréciable de la force de freinage due au remplissage à rebours des cylindres où les pistons sont essentiellement au-delà du point mort bas. L'invention a également trait à un système de freinage en mode à quatre temps.
Faletti James J.
Hackett David E.
Caterpillar Inc.
Kirby Eades Gale Baker
LandOfFree
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