Title:
内燃機関の制御装置
Document Type and Number:
Japanese Patent JP6428715
Kind Code:
B2
Abstract:
Intake holes at the opposite ends are opened and closed by first intake valves. The middle intake hole is opened and closed by a second intake valve. A control device includes an intake variable valve device. First branch channels are connected to the intake holes and produce a normal tumble flow. A second branch channel is configured such that the flow rate of intake air passing through the middle intake hole is relatively greater on the side closer to the outer periphery of the combustion chamber. Where increasing the flow coefficient is given a higher priority, a three-valve drive mode is selected. Where the strength of the normal tumble flow is enhanced, a two-valve drive mode is selected. Where production of the normal tumble flow is reduced, a one-valve drive mode is selected.
Inventors:
Yasushi Yahara
Application Number:
JP2016134462A
Publication Date:
November 28, 2018
Filing Date:
July 06, 2016
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F02D13/02; F01L1/26; F02B23/08; F02B23/10; F02D21/08; F02F1/42; F02M26/00; F02M26/17
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| JP2007146708A | ||||
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Attorney, Agent or Firm:
Hideki Takahashi
Mamoru Takada
Hidekazu Onishi
Mamoru Takada
Hidekazu Onishi