JPS58116721U - Automotive internal combustion engine cooling system - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は従来例の概略構成図、第２図はアイドリング時
の冷却水温度がＨＣ濃度及び燃料消費篭に与える影響を
示す比較説明図、第３図はこの考案の実施例の概略構成
断面図、第４図はこの考案の他の実施例の概略構成断面
図である。 ４・・・ラジェータ入口通路、９・・・サーモスタット
、８・・・ウォータポンプ、２１・・・機関吸気通路、
２２・・・絞り弁、１１・・・制御弁、１２・・・弁口
、１３・・・弁体、１５・・・ダイヤフラム、１８・・
・ダイヤフラム装置、２３・・・サーマルバキュームバ
ルフ、”２５・・・感温部、２７Ａ〜２７Ｃ・・・弁体
、２０（２０Ａ−−□２０Ｃ）・・・吸気負圧通路、２
８・・・制御装置、３４・・・ダイヤフラム装置、３５
・・田ツド、３６・・・ストッパ部材。Fig. 1 is a schematic configuration diagram of a conventional example, Fig. 2 is a comparative explanatory diagram showing the influence of cooling water temperature during idling on HC concentration and fuel consumption basket, and Fig. 3 is a schematic configuration cross section of an embodiment of this invention. 4 are schematic cross-sectional views of other embodiments of this invention. 4...Radiator inlet passage, 9...Thermostat, 8...Water pump, 21...Engine intake passage,
22... Throttle valve, 11... Control valve, 12... Valve port, 13... Valve body, 15... Diaphragm, 18...
・Diaphragm device, 23... Thermal vacuum valve, 25... Temperature sensing part, 27A to 27C... Valve body, 20 (20A--□20C)... Intake negative pressure passage, 2
8... Control device, 34... Diaphragm device, 35
... Tatsudo, 36... Stopper member.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ラジェータ入口通路に冷却液温度に応じてラジェータに
流れる冷却液量を制御するサーモスタットを介装した自
動車用内燃機関の冷却装置において、上記サーモスタッ
トの下流でかつウォータポンプの上流の冷却液通路途中
に、機関の運転状態に応じて開閉作動し、機関吸気通路
の絞り弁が略全閉状態となる機関の低負荷・無負荷状態
の時に上記通路を遮断する制御弁を設ける一方、該運転
時の冷却液塩度がある設定温度以上の時に、上記絞り弁
の全閉開度を設定温度以下の時に比べて若干小さく制御
する手段を設けたことを特徴とする自動車用内燃機関の
冷却装置。In a cooling system for an internal combustion engine for an automobile, in which a thermostat is installed in the radiator inlet passage to control the amount of coolant flowing to the radiator according to the coolant temperature, in the middle of the coolant passage downstream of the thermostat and upstream of the water pump, A control valve is provided that opens and closes depending on the operating state of the engine and shuts off the passage when the engine is in a low-load or no-load state when the throttle valve in the engine intake passage is almost fully closed. A cooling device for an internal combustion engine for an automobile, characterized in that a cooling device for an internal combustion engine for an automobile is provided, comprising means for controlling the fully closed opening degree of the throttle valve to be slightly smaller when the liquid salinity is above a certain set temperature than when it is below the set temperature.