JPH0392522U - - Google Patents

Info

Publication number
JPH0392522U
JPH0392522U JP118490U JP118490U JPH0392522U JP H0392522 U JPH0392522 U JP H0392522U JP 118490 U JP118490 U JP 118490U JP 118490 U JP118490 U JP 118490U JP H0392522 U JPH0392522 U JP H0392522U
Authority
JP
Japan
Prior art keywords
hydraulic motor
cooling system
vehicle
amount
engine cooling
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.)
Granted
Application number
JP118490U
Other languages
Japanese (ja)
Other versions
JPH0748978Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP118490U priority Critical patent/JPH0748978Y2/en
Publication of JPH0392522U publication Critical patent/JPH0392522U/ja
Application granted granted Critical
Publication of JPH0748978Y2 publication Critical patent/JPH0748978Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Lubrication Of Internal Combustion Engines (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の第１実施例に係る車両のエン
ジン冷却装置の概略系統図、第２図は第１図の装
置におけるエンジン回転数と吸気負圧との関係を
示す特性図、第３図は本考案の第２実施例に係る
車両のエンジン冷却装置の概略系統図、第４図は
本考案の第３実施例に係る車両のエンジン冷却装
置の概略系統図、第５図は第４図の装置における
冷却フアンの回転数制御の処理手順を示したフロ
ーチヤート、第６図は本考案の第４実施例に係る
車両のエンジン冷却装置の概略系統図、第７図は
第６図におけるダイヤフラム式流量制御弁の要部
断面図、である。 １……エンジン、２……クランク軸、５……油
圧ポンプ、９……油圧モータ、１０……冷却フア
ン、１３，２１，４１……流量制限手段、１４…
…ＥＣＵ（電子制御装置）、１７……圧力スイツ
チ、３０……エンジン回転数検出センサ、Ｓ１…
…吸気負圧信号、Ｓ２……エンジン回転数信号。 FIG. 1 is a schematic system diagram of a vehicle engine cooling system according to a first embodiment of the present invention, FIG. 2 is a characteristic diagram showing the relationship between engine speed and intake negative pressure in the system of FIG. 1, and FIG. The figure is a schematic system diagram of a vehicle engine cooling system according to a second embodiment of the present invention, FIG. 4 is a schematic system diagram of a vehicle engine cooling system according to a third embodiment of the present invention, and FIG. FIG. 6 is a schematic system diagram of a vehicle engine cooling system according to the fourth embodiment of the present invention, and FIG. FIG. 2 is a sectional view of a main part of a diaphragm flow control valve. DESCRIPTION OF SYMBOLS 1... Engine, 2... Crankshaft, 5... Hydraulic pump, 9... Hydraulic motor, 10... Cooling fan, 13, 21, 41... Flow rate limiting means, 14...
...ECU (electronic control unit), 17...pressure switch, 30...engine rotation speed detection sensor, S1 ...
...Intake negative pressure signal, S2 ...Engine speed signal.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] クランク軸に連結される油圧ポンプから油圧モ
ータにオイルを圧送し、該油圧モータによつて冷
却フアンを回転駆動させるようにした車両のエン
ジン冷却装置において、前記油圧ポンプの下流側
に、エンジン回転数の急激な低下に基づいて前記
油圧モータへ供給されるオイル量を制限する流量
制限手段を接続したことを特徴とする車両のエン
ジン冷却装置。 In a vehicle engine cooling system in which oil is force-fed from a hydraulic pump connected to a crankshaft to a hydraulic motor, and a cooling fan is rotationally driven by the hydraulic motor, an engine rotation speed control device is provided downstream of the hydraulic pump. An engine cooling system for a vehicle, characterized in that a flow rate limiting means is connected to limit the amount of oil supplied to the hydraulic motor based on a sudden decrease in the amount of oil supplied to the hydraulic motor.
JP118490U 1990-01-12 1990-01-12 Vehicle engine cooling system Expired - Lifetime JPH0748978Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP118490U JPH0748978Y2 (en) 1990-01-12 1990-01-12 Vehicle engine cooling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP118490U JPH0748978Y2 (en) 1990-01-12 1990-01-12 Vehicle engine cooling system

Publications (2)

Publication Number Publication Date
JPH0392522U true JPH0392522U (en) 1991-09-20
JPH0748978Y2 JPH0748978Y2 (en) 1995-11-13

Family

ID=31505099

Family Applications (1)

Application Number Title Priority Date Filing Date
JP118490U Expired - Lifetime JPH0748978Y2 (en) 1990-01-12 1990-01-12 Vehicle engine cooling system

Country Status (1)

Country Link
JP (1) JPH0748978Y2 (en)

Also Published As

Publication number Publication date
JPH0748978Y2 (en) 1995-11-13

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