JPH01152105U - - Google Patents
Info
- Publication number
- JPH01152105U JPH01152105U JP4909888U JP4909888U JPH01152105U JP H01152105 U JPH01152105 U JP H01152105U JP 4909888 U JP4909888 U JP 4909888U JP 4909888 U JP4909888 U JP 4909888U JP H01152105 U JPH01152105 U JP H01152105U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- engine speed
- hydraulic oil
- deceleration
- relay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010720 hydraulic oil Substances 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 230000007935 neutral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図は本考案実施例にもとづく作動油オーバ
ヒート防止装置の構成図、第２図は従来の作動油
オーバヒートの警報装置の構成図である。
１……温度センサ、２……コントローラ、６…
…電磁切換弁、６ａ……ソレノイド、６ｂ……ソ
レノイド、７……デセルシリンダ、１０……リレ
ー。
FIG. 1 is a block diagram of a hydraulic oil overheat prevention device based on an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional hydraulic oil overheat warning device. 1...Temperature sensor, 2...Controller, 6...
...Solenoid switching valve, 6a...Solenoid, 6b...Solenoid, 7...Decel cylinder, 10...Relay.
Claims (1)
よりデセルシリンダーを作動させ、エンジン回転
数を低下させるオートデセル装置を備えた建設機
械において、前記装置の油圧回路に温度センサと
リレーを備えた制御回路を付設して、作動油がオ
ーバーヒートすると自動的にエンジン回転数が低
下するようにしたことを特徴とする作動油オーバ
ヒート防止装置。 In construction machinery equipped with an auto-deceleration device that activates the deceleration cylinder using a hydraulic signal to reduce engine speed when the work lever is set to neutral during operation, a control circuit equipped with a temperature sensor and a relay is attached to the hydraulic circuit of the device. A hydraulic oil overheat prevention device characterized in that the engine speed is automatically reduced when the hydraulic oil overheats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4909888U JPH01152105U (en) | 1988-04-12 | 1988-04-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4909888U JPH01152105U (en) | 1988-04-12 | 1988-04-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01152105U true JPH01152105U (en) | 1989-10-20 |
Family
ID=31275216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4909888U Pending JPH01152105U (en) | 1988-04-12 | 1988-04-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01152105U (en) |
-
1988
- 1988-04-12 JP JP4909888U patent/JPH01152105U/ja active Pending