JPS59137322U

JPS59137322U - Internal combustion engine cooling water temperature control device

Info

Publication number: JPS59137322U
Application number: JP3079483U
Authority: JP
Inventors: 実沢　文夫; 南雲　慎一; 長谷　好文
Original assignee: 日産自動車株式会社
Priority date: 1983-03-03
Filing date: 1983-03-03
Publication date: 1984-09-13
Also published as: JPH0124344Y2

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図は従来装置の断面図、第２図及び第３図は高負荷
時、低負荷時での駆動軸位置をそれぞれ　８示す要部訟
大断面図、第４図はリフト特性図、第５図は本考案の一
実施例の断面図、第６図Ａ〜第６図りは異なる機関状態
での作動をそれぞれ示す、説明図である。１・・・機関、４・・・ウォータポンプ、５・・・ラジ
ェー′夕、６・・・冷却水路、７・・・サーモスタット
、８・・・熱応動部材、９・・・ピストン、１１・・・
弁体、１５・・・ダイヤフラム―置、１６・・・駆動軸
、３１・・・可動弁座、　　　　□３２・・・ベロフラ
ム、３５・・・ピストン座。Figure 1 is a cross-sectional view of the conventional device, Figures 2 and 3 are large-scale cross-sectional views of the main parts showing the drive shaft positions under high load and low load, respectively. Figure 4 is a lift characteristic diagram. FIG. 5 is a sectional view of an embodiment of the present invention, and FIGS. 6A to 6A are explanatory diagrams showing operations under different engine conditions. DESCRIPTION OF SYMBOLS 1...Engine, 4...Water pump, 5...Radiator, 6...Cooling channel, 7...Thermostat, 8...Thermal response member, 9...Piston, 11...・・・
Valve body, 15...Diaphragm placement, 16...Drive shaft, 31...Movable valve seat, □32...Bellophram, 35...Piston seat.

Claims

[Scope of utility model registration request]

Thermostat is installed in the cooling water channel of the engine and controls the flow rate of cooling water flowing to the radiator according to the cooling water temperature.The thermostatic member of the mostat is connected to the drive shaft of the diaphragm device that responds to the engine load. Increase the valve opening temperature at low loads, and at high loads! In this cooling water temperature control device that controls the temperature at a lower temperature, the valve seat on which the valve element of the thermostat approaches and separates is provided so as to be movable in the same direction as the valve element.
The drive shaft is connected to the valve seat, and a bellophram that responds to the discharge pressure of the water pump is connected to the valve seat, and the piston seat on which the piston of the thermally responsive member comes into contact is fixed to the housing; A cooling water temperature control device for an internal combustion engine, characterized in that a valve opening area of a thermostat is expanded in accordance with an increase in discharge pressure of a water pump.