JPH01115812U

JPH01115812U -

Info

Publication number: JPH01115812U
Application number: JP1132788U
Authority: JP
Priority date: 1988-01-29
Filing date: 1988-01-29
Publication date: 1989-08-04
Anticipated expiration: 2003-01-29
Also published as: JPH0610108Y2

Description

[Brief explanation of the drawing]

第１図はこの考案にかかる潤滑系装置をそなえ
た油圧シヨベルの一部切欠側面図、第２図は第１
図のＡより見た一部切欠図、第３図はこの考案に
かかる潤滑系装置の潤滑系回路図、第４図は従来
技術油圧シヨベルを後方より見た一部切欠図、第
５図は従来技術エンジンの側面図、第６図は従来
技術潤滑系回路図である。３，２０……上部旋回体、４，２７……エンジ
ン、５……オイルパン、６……上部突出ガード部
、９，２８……フルオイルフイルタ、１０，２９
……バイパスオイルフイルタ、１２，２６……オ
イルポンプ、２１……エンジン室、２３……フイ
ルタケーシング体、２４……組合せフイルタ部、
２５……下部ケーシング部。 Figure 1 is a partially cutaway side view of a hydraulic excavator equipped with a lubrication system according to this invention, and Figure 2 is a side view of a hydraulic excavator equipped with a lubrication system according to this invention.
Fig. 3 is a lubrication system circuit diagram of the lubrication system device according to this invention, Fig. 4 is a partially cutaway view of a conventional hydraulic excavator seen from the rear, and Fig. 5 is a partially cutaway view as seen from A in the figure. FIG. 6, a side view of a conventional engine, is a circuit diagram of a conventional lubrication system. 3,20...Upper rotating body, 4,27...Engine, 5...Oil pan, 6...Upper protruding guard portion, 9,28...Full oil filter, 10,29
... Bypass oil filter, 12, 26 ... Oil pump, 21 ... Engine compartment, 23 ... Filter casing body, 24 ... Combination filter section,
25...Lower casing part.

Claims

[Scope of utility model registration request]

In an engine equipped with a lubricating oil circuit, a full oil filter and a bypass oil filter are connected to form a combination filter section, and a lower casing section is integrally attached to the combination filter section to form a filter casing body. , the filter casing body is fixedly mounted inside the engine compartment surrounding space, and the oil in the lower casing part is allowed to pass through the combination filter part via an oil pump, and further to be supplied to the engine oil main gear assembly part. A lubricating device for an engine, characterized in that a return oil passage of a lubrication pipe branched from the oil main gear rally portion is configured to be able to communicate with a lower casing portion of the filter casing body.