JPS5914706U

JPS5914706U - Heating system for cars equipped with water-cooled engines

Info

Publication number: JPS5914706U
Application number: JP11009882U
Authority: JP
Inventors: 横奥　克日子; 茂桜井; 田中　稔益; 矢冨　敏
Original assignee: マツダ株式会社
Priority date: 1982-07-20
Filing date: 1982-07-20
Publication date: 1984-01-28

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、本考案の第１の実施例による暖房装置の概略
図、第２図は、第１のウォータポンプの作動例を示すグ
ラフ、第３図は、第１のウォータポンプを作動する電気
回路の一例を示す回路図、第４図は、排気通路とそのバ
イパス通路の分岐点＋Ｅ設けられた切換バルブを作動す
る電気回路の一例を示す回路図、第５図は、上記切換バ
ルブを作動する電気回路の他の例を示す回路図、第６図
は、本考案の第２の実施例による暖房装置の概略図であ
る。Ｅ・・・エンジン、１・・・冷却水套、１ａ・・・シリ
ンダヘッド水套、１ｂ・・・シリンダブロック水套、４
・・・暖房用冷却水循環通路、５・・・ヒータコア、９
・・・排気通路、１０・・・熱交換器、１１・・・バイ
パス通路、１２・・・切換バルブ、２０・・・ラジェー
タ用冷却水循環通路、２２・・・第１のウォータポンプ
、２３・・・第２のウォータポンプ。＠６１Ｋ　　、。 ■１し第１図 −第２図Ｅｊ！−３４ｊ１１　　ＮＶ見」　τ−°−Fig. 1 is a schematic diagram of a heating device according to a first embodiment of the present invention, Fig. 2 is a graph showing an example of the operation of the first water pump, and Fig. 3 is a graph showing the operation of the first water pump. FIG. 4 is a circuit diagram showing an example of an electric circuit. FIG. 4 is a circuit diagram showing an example of an electric circuit that operates a switching valve provided at the branch point +E of the exhaust passage and its bypass passage. FIG. FIG. 6, a circuit diagram showing another example of an operating electric circuit, is a schematic diagram of a heating device according to a second embodiment of the present invention. E... Engine, 1... Cooling water mantle, 1a... Cylinder head water mantle, 1b... Cylinder block water mantle, 4
... Cooling water circulation passage for heating, 5 ... Heater core, 9
... Exhaust passage, 10... Heat exchanger, 11... Bypass passage, 12... Switching valve, 20... Cooling water circulation passage for radiator, 22... First water pump, 23... ...Second water pump. @61K,. ■1Shi Figure 1-Figure 2E j! -34j 11 NV" τ−°−

Claims

[Scope of utility model registration request]

Cooling water is taken out from the cooling water mantle of the engine body, and passed through a heat exchanger installed in the exhaust passage that heats the cooling water through heat exchange with exhaust gas, and a heater core for heating the vehicle interior. A heater cooling water circulation path that returns to the cooling water cannula, a bypass path that is provided in the exhaust path and bypasses the heat exchanger, and a bypass path that is provided at a branch point between the exhaust path and the bypass path and divides the flow between these paths. a flow rate control valve that controls the amount of exhaust gas; a set heating temperature detector that detects a set heating temperature and generates a heating temperature signal indicating the set heating temperature; and a flow rate control valve that controls the flow rate M based on the heating temperature signal. A heating system for a vehicle equipped with a water-cooled engine, comprising a control device that operates a valve to adjust the amount of exhaust gas flowing into the heat exchanger.