Hitachi Construction Machinery Co., Ltd.

Hayato Kubota

Hiroki Sugawara

Atsushi Ninomiya

Shigehisa Hagura

Kazuhiko Mizoguchi

Shigeru Hirasawa

Masao Kariya

Excavator

On a revolving frame (), a counterweight (), an engine (), a cooling fan (), a heat exchanger (), an exterior cover () forming a machine room () on the revolving frame (), an exhaust gas purifying device () including a urea selective reduction catalyst (), a urea water injection valve () injecting a urea water which is a reducing agent toward an upstream side of the urea selective reduction catalyst (), and a urea water supply line () through which the urea water to be supplied to the urea water injection valve () flows are provided. A horizontal support member () supporting the exterior cover () is provided on a front side of the counterweight (), and a heat shield cover () is mounted on the horizontal support member (). A line accommodating space () is formed between the horizontal support member () and the heat shield cover (), and a urea water supply line () for shielding heat from the engine () is accommodated in this line accommodating space ().

Construction machine

Growing community of inventors

Tsuchiura, Japan

Hayato Kubota