JPH0327866U

JPH0327866U -

Info

Publication number: JPH0327866U
Application number: JP8939889U
Authority: JP
Priority date: 1989-07-28
Filing date: 1989-07-28
Publication date: 1991-03-20

Description

[Brief explanation of drawings]

図面は本考案の実施例を示し、第１図は内燃機
関の正面図、第２図は第１図の要部拡大断面図、
第３図は第２図の−視断面図、第４図は第３
図と同じ箇所における他の実施例を示す断面図で
ある。１……内燃機関、２……排気マニホールド、３
……吸気マニホールド、４……触媒ケース、５…
…モノリス触媒、６……排気管、７……気化器、
８……エアクリーナ、９……エアクリーナにおけ
る大気空気導入管路、１０……周壁、１１……蓋
板、１３……暖気チヤンバー、１４……吸気入口
、１５……暖気出口、１６……空気取入れ管路、
１６ａ……大気空気取入れ口、１７……暖気導入
管路。 The drawings show an embodiment of the present invention; FIG. 1 is a front view of an internal combustion engine, FIG. 2 is an enlarged sectional view of the main part of FIG.
Figure 3 is a cross-sectional view of Figure 2, and Figure 4 is a cross-sectional view of Figure 2.
It is a sectional view showing another example in the same place as the figure. 1...Internal combustion engine, 2...Exhaust manifold, 3
...Intake manifold, 4...Catalyst case, 5...
...monolith catalyst, 6...exhaust pipe, 7...carburizer,
8... Air cleaner, 9... Atmospheric air introduction pipe in air cleaner, 10... Peripheral wall, 11... Lid plate, 13... Warm air chamber, 14... Intake inlet, 15... Warm air outlet, 16... Air intake conduit,
16a...Atmospheric air intake, 17...Warm air introduction pipe.

Claims

[Scope of utility model registration request]

In an internal combustion engine comprising a catalyst case containing a built-in catalyst connected to an exhaust manifold from each cylinder, a warm air chamber having an intake inlet and a warm air outlet is integrally formed on the outer peripheral surface of the catalyst case, An internal combustion engine characterized in that an air intake pipe having an atmospheric air intake at its tip is connected to the intake inlet, and a warm air introduction pipe to an air intake system such as an air cleaner is connected to the warm air outlet. Intake air preheating device.