JPH03127027U

JPH03127027U -

Info

Publication number: JPH03127027U
Application number: JP3503090U
Authority: JP
Priority date: 1990-03-30
Filing date: 1990-03-30
Publication date: 1991-12-20

Description

[Brief explanation of drawings]

第１図は本考案により成る油圧式掘削機の全体
斜視図。第２図は同上面図。第３図は同作動油及
び冷却風の回路図。第４図は他の実施例による作
動油タンクの斜視図。第５図は従来技術による油
圧式掘削機の全体斜視図。第６図は同上面図。第
７図は同作動油及び冷却風の回路図。１……作動油タンク、６……エンジン収容室、
２……燃料タンク、７……ラジエータ、３……カ
バー、８……油圧ポンプ、３ａ……冷却風取入口
、９……操作弁、４……エンジン、１０……油圧
モータ、４ａ……ＰＴＯ、１１……シリンダ、４
ｂ……フアン、Ａ……冷却風、５……ボンネツト
。 FIG. 1 is an overall perspective view of a hydraulic excavator according to the present invention. Figure 2 is a top view of the same. Figure 3 is a circuit diagram of the hydraulic oil and cooling air. FIG. 4 is a perspective view of a hydraulic oil tank according to another embodiment. FIG. 5 is an overall perspective view of a conventional hydraulic excavator. FIG. 6 is a top view of the same. Figure 7 is a circuit diagram of the hydraulic oil and cooling air. 1... Hydraulic oil tank, 6... Engine housing chamber,
2...Fuel tank, 7...Radiator, 3...Cover, 8...Hydraulic pump, 3a...Cooling air intake, 9...Operation valve, 4...Engine, 10...Hydraulic motor, 4a... PTO, 11...Cylinder, 4
b...Fan, A...Cooling air, 5...Bonnet.

Claims

[Scope of utility model registration request]

In a hydraulic oil cooling system for a hydraulic excavator that is equipped with a power unit, work equipment, and driving device on a swivel table installed on a track-type traveling aircraft body, the hydraulic oil tank installed on the swivel table is installed at an arbitrary distance from the outer wall. 1. A cooling device for a hydraulic oil tank, characterized in that it is covered with a cover installed with a radiator, one end of the cover is open to the atmosphere, and the other end is communicated with a front surface of a radiator.