Doosan Infracore Co., Ltd.

Hee Seog Kong

Ki Hwan Hong

Dae Gyun Choi

Myeong Ku Yeo

Hong Sup Kwak

A pilot signal block assembly includes at least two base blocks arranged to be spaced apart from each other in a first direction and having a plurality of receiving holes configured to move a spool therein in one direction, a plurality of cartridge blocks arranged on a surface of the base block to be spaced apart from each other in a second direction, each of the cartridge blocks including a signal passage which is in fluid communication with the corresponding receiving hole to supply a pilot oil to the corresponding receiving hole, and a plurality of electro proportional pressure reducing valves installed in the cartridge blocks respectively and controlling an opening rate of the signal passage in proportional to an electric control signal.

Growing community of inventors

Gyeonggi-do, South Korea

Hee Seog Kong