公开(公告)号：US20240229422A1

公开(公告)日：2024-07-11

申请号：US18396626

申请日：2023-12-26

Applicant: Yanmar Holdings Co., Ltd.

Inventor： Tatsumasa WAKATA ,  Kazuki TAKEDA ,  Seiya NORIMOTO

IPC: E02F9/22 ,  E02F9/08 ,  E02F9/16

CPC classification number: E02F9/2275 ,  E02F9/0883 ,  E02F9/16 ,  E02F9/2267

Abstract: An excavation work machine includes a hydraulic oil tank provided in a tank chamber and storing hydraulic oil that actuates a plurality of hydraulic actuators, a control valve controlling a flow of pressure oil supplied from the hydraulic oil tank to each of the hydraulic actuators, a plurality of hydraulic hoses extending from the control valve and communicatively connected to each of the hydraulic actuators, and a fuel tank that is provided in a front portion in the tank chamber covered with a hood provided to be openable and closable and stores fuel to be supplied to an engine. The plurality of hydraulic hoses are arranged along a rear surface portion of the hydraulic oil tank, and a fuel supply pump is provided in a space portion formed above a step portion in a front portion of the tank chamber.

公开(公告)号：US20230304259A1

公开(公告)日：2023-09-28

申请号：US18177259

申请日：2023-03-02

Applicant: YANMAR HOLDINGS CO., LTD.

Inventor： Tatsumasa WAKATA

IPC: E02F9/08 ,  B60K11/08 ,  B60K13/02 ,  F02M35/16 ,  F02M35/08

CPC classification number: E02F9/0866 ,  B60K11/08 ,  B60K13/02 ,  F02M35/164 ,  F02M35/08

Abstract: To provide a construction machine capable of improving cooling efficiency of a heat exchanger and reducing noise in a configuration in which a prime mover, a heat exchanger, and an air cleaner for supplying clean air to the prime mover are arranged in an engine room. The excavation work machine comprises an engine room provided on a swivel frame and housing equipment including an engine and a heat exchange unit, a ventilation part provided on a right exterior cover forming a side wall of the engine room and having a plurality of ventilation holes for communicating inside and outside of the engine room, and an air cleaner arranged between the heat exchange unit and the ventilation part in the engine room, and supplying cleaned air to the engine.