Intake device for engine
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorKeiichi Sugiyama
Life of this patent
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Abstract
An induction system for an internal combustion engine including an auxiliary induction system formed by a spacer and a plurality of pipes extending from the spacer into each of the engine cylinder head main intake passages. Each pipe is formed with a deflector portion at its end so that a charge will be delivered directly to the chambers of the engine from the pipes without impingement upon the cylinder head surfaces.
Claims10
In an induction system for a variable volume chamber of an internal combustion engine comprising a main intake passage discharging into said chamber and an auxiliary induction passage formed at least in part by a pipe extending into the main intake passage and terminating contiguous to its point of discharge into the chamber and having an outlet communicating with said main intake passage contiguous to its point of discharge into said chamber, said auxiliary induction passage having a substantially smaller effective area than said main intake passage, the improvement comprising deflector means positioned at the outlet of said auxiliary induction passage for redirecting the flow issuing therefrom, said deflector means comprising an integral end portion of said pipe configured to direct the flow from the pipe in a direction other than along the axis of the pipe.
An induction system for a variable volume chamber of an internal combustion engine comprising a cylinder head formed with a main intake passage communicating with said chamber at is outlet end and opening at its other end through a wall of said cylinder head, a spacer affixed to said wall of said cylinder head and having a main intake passage aligned with the opening of said cylinder head main intake passage, a pipe supported by said spacer and extending into said cylinder head main intake passage, said pipe terminating at one end contiguous to the outlet end of said main intake passage, and means for communicating the other end of the pipe with a charge source for providing a charge to the chamber through said pipe.
An induction system for a variable volume chamber of an internal combustion engine comprising a cylinder head formed with a main intake passage communicating with said chamber at is outlet end and opening at its other end through a wall of said cylinder head, a spacer affixed to said wall of said cylinder head and having a main intake passage aligned with the opening of said cylinder head main intake passage, a pipe supported by said spacer and extending into said cylinder head main intake passage, said pipe terminating at one end contiguous to the outlet end of said main intake passage, and a valve in said main intake passage of said spacer, said pipe having its inlet in communication with the spacer main intake passage upstream of the valve.
Dependencies are inferred from the claim text.