Kawasaki Jukogyo Kabushiki Kaisha

Tadashi Anada

Masahiro Yamada

Hideki Tanaka

Yukito Imamura

Masahiro Suzuki

Mariko Ogata

Isamu Yoshimura

Hideki Watanabe

Shinji Narita

Tomohide Hattori

Toru Morita

Masamichi Maruyama

Noriaki Takakura

A spool valve includes: a housing including a spool hole; a spool inserted into the spool hole of the housing so as to be movable in an axial direction; a screw shaft arranged coaxially with the spool; an electric motor configured to rotate the screw shaft; a nut threadedly engaged with the screw shaft and configured to move in the axial direction when the screw shaft is rotated; a coupler through which the nut and the spool are coupled to each other; and a coil spring configured to apply biasing force to the spool, the biasing force acting so as to maintain the spool at a neutral position, the coil spring being arranged so as to overlap the nut when viewed from a radial direction of the screw shaft.

Spool valve

A hydraulic drive apparatus includes: an electric motor; a variable displacement pump driven by the electric motor, the pump including a pair of pump ports whose delivery side and suction side are switched with each other in accordance with a rotation direction of the electric motor; a hydraulic actuator connected to the pair of pump ports by a first supply/discharge line and a second supply/discharge line; and a control device that controls the electric motor based on an actuator position command value for the hydraulic actuator. The pump is configured such that a volume of the pump decreases in accordance with increase in a pressure difference between the first supply/discharge line and the second supply/discharge line.

Hydraulic drive apparatus

An electric double-layer capacitor, which provides enhanced heat release-ability with a simple configuration ensuring vibration resistance and impact resistance and to improve durability in a severe marginal environment, is provided. The electric double-layer capacitor includes capacitor cells; a pair of end plates, respectively disposed on both sides of a plurality of parallelly arranged capacitor cells; a metallic case for housing the end plates, a plurality of capacitor cells; and an insulating resin, filling the interior of the metallic case to cover the end plates, a plurality of capacitor cells and lead terminals, wherein the electric double-layer capacitor further includes an external connecting terminal having two end sections, one of the end sections being disposed in the end plate within the insulating resin, and wherein the lead terminal of the capacitor cell disposed adjacent to the end plate is configured to be connected to the one of the end sections of the external connecting terminal.

Electric double-layer capacitor

An electricity-oil hybrid motorincludes an oil-pressure motorand an electric motor. The electricity-oil hybrid motorincludes a rotating shaftand causes the rotating shaftto rotate by supplied operating oil. The electric motorincludes a rotorconnected to the rotating shaft, a statorprovided around the rotor, and a housingin which the rotorand the statorare accommodated. The rotorand the housingare provided so as to surround and cover a casingof the oil-pressure motor. The housingincludes a rotating shaft accommodating spacein which the rotating shaftis accommodated and a stator accommodating spacein which the stator is accommodated. A sealing memberconfigured to separate the accommodating spacesandis provided in the housing

Electricity-liquid hybrid liquid-pressure apparatus

Growing community of inventors

Kobe, Japan

Tadashi Anada