Mikuni Corporation

Kawasaki Jukogyo Kabushiki Kaisha

Jun Kiyono

Yasuhiro Kuji

Akinobu Wakabayashi

Isamu Tanaka

Yoshiyuki Ayakoji

A multiple throttle deviceincludes: a throttle bodyhaving a plurality of intake passages; a plurality of throttle valves; a plurality of secondary passagesrespectively bypassing the plurality of throttle valves; and an air amount adjustment valvefor adjusting an amount of air flowing through the plurality of secondary passages. The air amount adjustment valveincludes a valve plug, and a guide partfor guiding the valve plugin the axial direction. Opening into the inner peripheral surfaceof the guide partare: a plurality of first communication holesrespectively communicating with downstream sides of the throttle valvesin the plurality of intake passages; and a second communication holecommunicating with a canisterfor collecting fuel vapor. The actuatoradjusts a position of the valve plugin the axial direction such that a first effective opening area of each of the first communication holeswhich is not blocked by the valve plugand a second effective opening area of the second communication holewhich is not blocked by the valve plugchange.

Air amount adjustment valve and multiple throttle device

A throttle deviceincludes a throttle valvewhich is disposed in an intake passage, and includes a first valve bodyand a first rotatable shaftfor rotatably holding the first valve body, a bypass valvewhich is disposed in a bypass passageconnected to the intake passageso as to bypass the throttle valve, and includes a second valve bodyand a second rotatable shaftfor rotatably holding the second valve body, a common motorfor applying a driving force to the throttle valveand the bypass valve, a first gearconfigured to be able to transmit or block the driving force of the motorwith respect to the first rotatable shaft, a second gearconfigured to receive the driving force of the motorand transmit the driving force to the second rotatable shaft, and a sensorfor detecting a rotation amount of the second rotatable shaftof the bypass valveor another rotatable shaft rotating in conjunction with the second rotatable shaft

Throttle device

A throttle assembly for intake air protects a link mechanism for interlocking throttles with each other from water and mud and maintains the throttle operability in a satisfactory state. The throttle assembly for intake air includes a plurality of throttle devices for injecting fuel into intake air to generate an air-fuel mixture; a link mechanism for connecting driving portions of the throttle devices with each other, a link mechanism housing chamber defined by an outer wall member for forming a link mechanism housing chamber and housing the link mechanism, and seal members provided at the connected or mated portions of the outer wall member and a different member or the connected or mated portions of a plurality of outer wall configuring members which configure the outer wall member.

Growing community of inventors

Odawara, Japan

Jun Kiyono