F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
F02M 25/06 (2006.01) F01M 13/02 (2006.01) F02F 7/00 (2006.01)
Patent
CA 2204903
An apparatus and method are provided for maintaining a substantially constant partial vacuum in the crankcase (10) of an internal combustion engine (8). Maintaining the partial vacuum, in addition to essentially eliminating crankcase emissions, substantially reduced tailpipe emissions of carbon monoxide and unburned hydrocarbons as evidenced by a test conducted according to California Air Research Board Test method 505 (hot). The crankcase partial vacuum also has the added benefit of reducing the rate at which the engine (8) lubricating oil was contaminated.
La présente invention porte sur un procédé, qui maintient un vide partiel pratiquement constant dans le carter (10) d'un moteur à combustion interne (8). Le fait de maintenir un vide partiel, outre celui d'éliminer sensiblement des émissions en provenance du carter, a permis de réduire notablement les émissions d'échappement de monoxyde de carbone et d'hydrocarbures non-brûlés comme l'a attesté un essai mené conformément à la méthode 505 (à chaud) de l'Air Research Board Test de Californie. Le carter à vide partiel présente, de surcroît, cet autre avantage de réduire la vitesse d'altération de l'huile lubrifiante du moteur (8).
Bereskin & Parr
En-Ovation Technology Inc.
LandOfFree
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