Induction system for snowmobile
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorHiroshi Tanaka
Life of this patent
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Abstract
An induction system for the internal combustion engine of a snowmobile that includes first and second air filters the first of which is disposed within the engine compartment and is not readily viewed by the operator and the second of which is disposed so that it can be viewed externally from the engine compartment for the operator to determine if it has been clogged with snow and requires servicing. In addition, a portion of the air flowing to the engine is heated by passing it through the engine compartment while another portion is direct atmospheric air for controlling the temperature of the air delivered to the engine without large temperature variations to insure better running under all ambient conditions.
Claims13
An induction system for the internal combustion engine of a snow vehicle having a body defining an engine compartment in which said engine is at least in part contained, said engine having an intake port, said induction system having an outlet communicating with said intake port and first air filter for filtering air flowing through said intake port, said first air filter being positioned within said body and normally concealed from view, and a second air filter disposed across an opening in said body for filtering air flowing to said intake port in a position exposed to view so that an operator may view if snow is clogging said second air filter.
An induction system for the internal combustion engine of a snow vehicle having a body defining an engine compartment in which said engine is at least in part contained, said engine having an intake port, said induction system having an outlet portion communicating with said intake port, a first portion extending to said outlet portion from a first atmospheric inlet through said engine compartment for heating of atmospheric air delivered to said intake port and a second portion extending from a second atmospheric inlet to said outlet portion substantially free of said engine compartment.
Dependencies are inferred from the claim text.