Caterpillar Inc.

Shuhei Orimoto

Pengfei Ma

Tetsuya Yoshino

Aleksandar M Egelja

Matthew James Beschorner

Justin Douglas Speichinger

Bryan A Johnson

Shogo Tada

Hideki Nakajima

Aleem Junaidi

A hydraulic system is disclosed. The hydraulic system may include a source of pressurized fluid; a tank; a hydraulic actuator including a first chamber and a second chamber; a first independent metering valve disposed between and fluidly connected to the source, the tank, and the first chamber of the hydraulic actuator; and a second independent metering valve disposed between and fluidly connected to the source, the tank, and the second chamber of the hydraulic actuator. Each of the first independent metering valve and the second independent metering valve may include a spool and a valve actuator disposed on one side of the spool. The valve actuator may include a push coil, a pull coil, and a force feedback mechanism configured to balance a force of the push coil and the pull coil.

Split spool valve

Growing community of inventors

Koube, Japan

Shuhei Orimoto