JPS5837952U

JPS5837952U - Internal combustion engine intake preheating device

Info

Publication number: JPS5837952U
Application number: JP12114781U
Authority: JP
Inventors: 井田　照男; 田島　義康; 原島　仁志
Original assignee: 富士重工業株式会社
Priority date: 1981-08-14
Filing date: 1981-08-14
Publication date: 1983-03-11
Also published as: JPS6039478Y2

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図は本考案の一実施例を水子概略平面図、第２図は
第１図の■−■線に沿う横断面図である。１・・・内燃機関本体、２・・・排気管、３・・・触媒
コンバータ、３ａ、　　３ｂ・・・排気ガス上流側部、
下流側部、４・・・排気系、５・・・吸気系、６・・・
エアクリーナ、７・・・気化器、８・・・遮熱カバー、
ｆ３ａ−・・予熱空気通路連絡部、９・・・吸気予熱室
、１０・・・予熱空気通路、１、、１−・・ダンパ、１
２−・・触媒担体、１３ａ、１３ｂ。１４ａ、　　１４ｂ−・・開口。補正　昭５７．１０．１５実用新案登録請求の範囲、図面の簡単な説明を次のよう
に補正する。０実用新案登録請求の範囲排気系に排気ガス浄化用の触媒コンバータを備えた内燃
機関において、前記触媒コンバータと、この触媒コンバ
ータの外周を覆う遮熱カバーとの間の排気ガス上流側部
を吸気予熱室に形感し、−この吸気予熱室を予熱空気通
路によって吸気系に接−続したことを特徴とする内燃機
関の吸気予熱装譚。図面の簡単な説明第１図は本考案の一実施例を示す概略平面図、第２図は
第１図の■−■線に沿う横断面図である。１・・・内燃機関本体、２・・・排気管、３・・・触媒
コンバータ、３ａ、　３ｂ・・・排気ガス上流側部、下
流側部、４・・・排気系、５・・・吸気系、６・・・エ
アクリーナ、７・・・気化器、８・・・遮熱カバー、−
１１ａ・・・予熱空気通路連絡部、９・・・吸気予熱室
、１０・・−予熱空気通路、１　ｉ−・・ダンパ、１２
−・・触媒担体、１３ａ、１３ｂ。１４ａ、　　１４ｂ−・・開口。FIG. 1 is a schematic plan view of an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along the line ■-■ in FIG. 1... Internal combustion engine main body, 2... Exhaust pipe, 3... Catalytic converter, 3a, 3b... Exhaust gas upstream side,
Downstream side part, 4... Exhaust system, 5... Intake system, 6...
Air cleaner, 7... vaporizer, 8... heat shield cover,
f3a--Preheating air passage connecting portion, 9...Intake preheating chamber, 10...Preheating air passage, 1, 1--Damper, 1
2-... Catalyst carrier, 13a, 13b. 14a, 14b--openings. Amendment October 15, 1980 The claims for utility model registration and the brief description of the drawings are amended as follows. 0 Utility Model Registration Scope of Claims In an internal combustion engine equipped with a catalytic converter for exhaust gas purification in the exhaust system, the upstream side of the exhaust gas between the catalytic converter and a heat shield cover covering the outer periphery of the catalytic converter is used as an intake air source. An intake air preheating system for an internal combustion engine characterized by having a preheating chamber and connecting this intake air preheating chamber to an intake system through a preheating air passage. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic plan view showing an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line 1--2 in FIG. DESCRIPTION OF SYMBOLS 1... Internal combustion engine body, 2... Exhaust pipe, 3... Catalytic converter, 3a, 3b... Exhaust gas upstream side part, downstream side part, 4... Exhaust system, 5... Intake system, 6... air cleaner, 7... vaporizer, 8... heat shield cover, -
11a... Preheating air passage connecting part, 9... Intake preheating chamber, 10...-Preheating air passage, 1 i-... Damper, 12
-... Catalyst carrier, 13a, 13b. 14a, 14b--openings.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

排気系に排気ガス浄化用の触媒コンバータを備えた内燃
機関において、前記触媒コンバータと、この触媒コンバ
ータの外周を覆う遮熱カバーとの間のμｍ気ガス上流側
部を吸気予熱室に形成し、この吸気予熱室を予熱空気通
路によって吸気系に接続したことを特徴とする内燃機関
の吸気予熱装置。In an internal combustion engine equipped with a catalytic converter for exhaust gas purification in the exhaust system, a μm gas upstream side between the catalytic converter and a heat shield cover covering the outer periphery of the catalytic converter is formed into an intake preheating chamber, An intake air preheating device for an internal combustion engine, characterized in that the intake air preheating chamber is connected to an intake system through a preheating air passage.