JPS58116721U

JPS58116721U - Automotive internal combustion engine cooling system

Info

Publication number: JPS58116721U
Application number: JP1441782U
Authority: JP
Inventors: 淳一横山
Original assignee: 日産自動車株式会社
Priority date: 1982-02-04
Filing date: 1982-02-04
Publication date: 1983-08-09

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

[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

[Scope of utility model registration request]

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.