JPH0240933U

JPH0240933U -

Info

Publication number: JPH0240933U
Application number: JP11907888U
Authority: JP
Priority date: 1988-09-09
Filing date: 1988-09-09
Publication date: 1990-03-20

Description

[Brief explanation of drawings]

図面は本考案に係る農用トラクタのエンジン冷
却装置の実施例を示し、第１図はトラクタ前部の
一部切欠き側面図、第２図は第１の実施例の電気
回路図、第３図及び第４図は夫々第２及び第３の
実施例の電気回路図である。１……ボンネツト、２……エンジン、７……冷
却フアン、８……ラジエータ、１０……吸気口、
１６……補助冷却フアン、ＬＳ……リミツトスイ
ツチ、ＦＭ……電動モータ、Ｓｗ……エンジン始
動防止機能解除手段。 The drawings show an embodiment of the engine cooling system for an agricultural tractor according to the present invention, with FIG. 1 being a partially cutaway side view of the front of the tractor, FIG. 2 being an electric circuit diagram of the first embodiment, and FIG. and FIG. 4 are electrical circuit diagrams of the second and third embodiments, respectively. 1...Bonnet, 2...Engine, 7...Cooling fan, 8...Radiator, 10...Intake port,
16... Auxiliary cooling fan, LS... Limit switch, FM... Electric motor, Sw... Engine start prevention function release means.

Claims

[Claims for Utility Model Registration] 1. A front-blowing cooling fan 7, an engine 2, and a radiator 8 are arranged in this order from the front to the rear inside a bonnet 1 that can be opened and closed, and are connected from an intake port 10 at the rear of the bonnet. In an engine cooling system for an agricultural tractor configured to take in outside air through a radiator 8, suck it in with a cooling fan 7, and discharge it to the front of the machine, there is provided a limit switch LS that detects the open state of the bonnet 1 and prevents the engine 2 from starting. Engine cooling system for agricultural tractors equipped with 2 means SW for canceling the engine start prevention function based on the bonnet opening detection of the bonnet opening detection limit switch LS; and an electric motor FM.
2. The engine cooling system for an agricultural tractor according to claim 1, further comprising: an auxiliary cooling fan (16) driven by a cooling fan (16) for supplying cooling air to the radiator (8). 3. A front blowing type cooling fan 7, an engine 2, and a radiator 8 are arranged in this order from the front to the rear inside the bonnet 1 which can be opened and closed, and outside air taken in from the intake port 10 at the rear of the bonnet is passed through the radiator 8. An engine cooling system for an agricultural tractor configured to suck air with a cooling fan 7 and discharge it to the front of the machine body, wherein an auxiliary cooling fan 16 driven by an electric motor FM is provided near a radiator 8. 4 A limit switch LS is provided to detect the open state of the bonnet 1, and this limit switch LS
4. The engine cooling system for an agricultural tractor according to claim 3, wherein said electric motor FM is automatically driven based on detection of a hood opening.