JPS59172221U

JPS59172221U - Automotive engine cooling system

Info

Publication number: JPS59172221U
Application number: JP6669583U
Authority: JP
Inventors: 降矢　勝次
Original assignee: 日産自動車株式会社
Priority date: 1983-05-02
Filing date: 1983-05-02
Publication date: 1984-11-17

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 drawings]

第１図は従来の自動車用エンジンの冷却装置を示す概略
全体図、第２図ａは同装置におけるサーモスタットの断
面図、第２図すは同サーモスタットの作用説明のための
部分拡大図、第３図ａはこの考案に係る自動車用エンジ
ンの冷却装置の一実施例を示す概略全体図、第３図すは
該装置のバイパス弁を示す概略図、第４図ａ、　ｂは同
実施例における作用説明のためのグラフ、第５図ａはこ
の考案の他の実施例を示す概略全体図、第５図すは同じ
くバイパス弁の概略図である。２１・・・エンジン本体、２２・・・ラジェータ、２３
・・・冷却水流入路、２４・・・冷却水流出路、２５・
・・ウォータポンプ、２６・・・サーモスタット、２７
・・・バイパス路、３０・・・サーモバイパス路、３１
．４１・・・バイパス弁。Fig. 1 is a schematic overall view showing a conventional cooling system for an automobile engine, Fig. 2a is a sectional view of a thermostat in the same device, Fig. 2 is a partially enlarged view for explaining the operation of the thermostat, and Fig. 3 Figure a is a schematic overall view showing an embodiment of an automobile engine cooling device according to this invention, Figure 3 is a schematic diagram showing a bypass valve of the device, and Figures 4 a and b show the operation of the same embodiment. An explanatory graph, FIG. 5a, is a schematic overall view showing another embodiment of the invention, and FIG. 5 is also a schematic diagram of a bypass valve. 21... Engine body, 22... Radiator, 23
...Cooling water inflow path, 24...Cooling water outflow path, 25.
...Water pump, 26...Thermostat, 27
...Bypass path, 30...Thermo bypass path, 31
．． 41...Bypass valve.

Claims

[Scope of utility model registration request]

The water jacket and radiator inside the engine,
A cooling water outflow path equipped with a wax type thermostat is connected to a cooling water inflow path equipped with a water pump,
In an automobile engine cooling system in which a cooling water outflow path on the upstream side of the thermostat and a cooling water inflow path on the upstream side of the water pump are connected by a bypass path, the cooling water outflow path on the upstream side and the downstream side of the thermostat are connected. 1. A cooling device for an automobile engine, characterized in that a thermo-bypass path is provided, and a bypass valve that opens when the differential pressure between the upstream side and the downstream side of a thermostat is equal to or higher than a predetermined value is interposed in the thermo-bypass path.